diff --git a/.gitignore b/.gitignore
index d33e8d5a..a3f02229 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,6 +77,7 @@ Tools/unix/zx/zx
 
 !Source/ver.lib
 !Source/Apps/FAT/FAT.COM
+!Source/Apps/copysl/copysl.com
 !Source/Apps/ZMP/zmpx.com
 !Source/Apps/ZMD/zmdsubs.rel
 !Source/Apps/Test/vdctest/font.asm
@@ -99,6 +100,7 @@ Tools/unix/zx/zx
 !Source/ZRC512/*.bin
 !Source/Z1RCC/*.bin
 !Source/ZZRCC/*.bin
+!Source/FZ80/*.bin
 !Tools/cpm/**
 !Tools/unix/zx/*
 !Tools/zx/*
@@ -109,4 +111,142 @@ Source/ZPM3/zccp.com
 Source/ZPM3/zpmldr.com
 Source/ZPM3/genbnk.dat
 
-Source/ZSDOS/zsdos.err
\ No newline at end of file
+Source/ZSDOS/zsdos.err
+
+# Lets explicit list all generate untracked binary files
+Binary/Apps/Tunes/bgm.vgm
+Binary/Apps/Tunes/ending.vgm
+Binary/Apps/Tunes/inchina.vgm
+Binary/Apps/Tunes/shirakaw.vgm
+Binary/Apps/Tunes/startdem.vgm
+Binary/Apps/Tunes/wonder01.vgm
+Binary/Apps/fdu.doc
+Binary/Apps/zmconfig.ovr
+Binary/Apps/zminit.ovr
+Binary/Apps/zmp.doc
+Binary/Apps/zmp.hlp
+Binary/Apps/zmterm.ovr
+Binary/Apps/zmxfer.ovr
+Binary/CPM3/bdos3.spr
+Binary/CPM3/bios3.spr
+Binary/CPM3/bnkbdos3.spr
+Binary/CPM3/bnkbios3.spr
+Binary/CPM3/cpm3fix.pat
+Binary/CPM3/genbnk.dat
+Binary/CPM3/gencpm.dat
+Binary/CPM3/genres.dat
+Binary/CPM3/readme.1st
+Binary/CPM3/resbdos3.spr
+Binary/CPNET/cpn12duo.lbr
+Binary/CPNET/cpn12mt.lbr
+Binary/CPNET/cpn12ser.lbr
+Binary/CPNET/cpn3duo.lbr
+Binary/CPNET/cpn3mt.lbr
+Binary/CPNET/cpn3ser.lbr
+Binary/RCEZ80_std.upd
+Binary/RCZ80_std.upd
+Binary/ZPM3/bnkbdos3.spr
+Binary/ZPM3/bnkbios3.spr
+Binary/ZPM3/gencpm.dat
+Binary/ZPM3/resbdos3.spr
+Binary/ZPM3/zinstal.zpm
+Binary/hd1k_prefix.dat
+Source/BPBIOS/def-ww.lib
+Source/CPNET/cpn12duo.lbr
+Source/CPNET/cpn12mt.lbr
+Source/CPNET/cpn12ser.lbr
+Source/CPNET/cpn3duo.lbr
+Source/CPNET/cpn3mt.lbr
+Source/CPNET/cpn3ser.lbr
+Source/Fonts/font8x11c.asm
+Source/Fonts/font8x11c.bin
+Source/Fonts/font8x11u.asm
+Source/Fonts/font8x16c.asm
+Source/Fonts/font8x16c.bin
+Source/Fonts/font8x16u.asm
+Source/Fonts/font8x8c.asm
+Source/Fonts/font8x8c.bin
+Source/Fonts/font8x8u.asm
+Source/Fonts/fontcgac.asm
+Source/Fonts/fontcgac.bin
+Source/Fonts/fontcgau.asm
+Source/Fonts/fontvgarcc.asm
+Source/Fonts/fontvgarcc.bin
+Source/Fonts/fontvgarcu.asm
+Source/HBIOS/RCEZ80_std.upd
+Source/HBIOS/RCZ80_std.upd
+Source/HBIOS/build_env.cmd
+Source/HBIOS/hbios_env.sh
+Source/Images/blank144
+Source/Images/blankhd1k
+Source/Images/blankhd512
+Source/Images/fd144_aztecc.img
+Source/Images/fd144_bascomp.img
+Source/Images/fd144_cowgol.img
+Source/Images/fd144_cpm22.img
+Source/Images/fd144_cpm3.img
+Source/Images/fd144_fortran.img
+Source/Images/fd144_games.img
+Source/Images/fd144_hitechc.img
+Source/Images/fd144_nzcom.img
+Source/Images/fd144_qpm.img
+Source/Images/fd144_tpascal.img
+Source/Images/fd144_ws4.img
+Source/Images/fd144_z80asm.img
+Source/Images/fd144_zpm3.img
+Source/Images/fd144_zsdos.img
+Source/Images/hd1k_aztecc.img
+Source/Images/hd1k_bascomp.img
+Source/Images/hd1k_blank.img
+Source/Images/hd1k_bp.img
+Source/Images/hd1k_combo.img
+Source/Images/hd1k_cowgol.img
+Source/Images/hd1k_cpm22.img
+Source/Images/hd1k_cpm3.img
+Source/Images/hd1k_fortran.img
+Source/Images/hd1k_games.img
+Source/Images/hd1k_hitechc.img
+Source/Images/hd1k_nzcom.img
+Source/Images/hd1k_qpm.img
+Source/Images/hd1k_tpascal.img
+Source/Images/hd1k_ws4.img
+Source/Images/hd1k_z80asm.img
+Source/Images/hd1k_zpm3.img
+Source/Images/hd1k_zsdos.img
+Source/Images/hd512_aztecc.img
+Source/Images/hd512_bascomp.img
+Source/Images/hd512_blank.img
+Source/Images/hd512_combo.img
+Source/Images/hd512_cowgol.img
+Source/Images/hd512_cpm22.img
+Source/Images/hd512_cpm3.img
+Source/Images/hd512_dos65.img
+Source/Images/hd512_fortran.img
+Source/Images/hd512_games.img
+Source/Images/hd512_hitechc.img
+Source/Images/hd512_nzcom.img
+Source/Images/hd512_qpm.img
+Source/Images/hd512_tpascal.img
+Source/Images/hd512_ws4.img
+Source/Images/hd512_z80asm.img
+Source/Images/hd512_zpm3.img
+Source/Images/hd512_zsdos.img
+Source/RomDsk/rom0_una.dat
+Source/RomDsk/rom0_wbw.dat
+Source/RomDsk/rom128_una.dat
+Source/RomDsk/rom128_wbw.dat
+Source/RomDsk/rom256_una.dat
+Source/RomDsk/rom256_wbw.dat
+Source/RomDsk/rom384_una.dat
+Source/RomDsk/rom384_wbw.dat
+Source/RomDsk/rom896_una.dat
+Source/RomDsk/rom896_wbw.dat
+Source/ZCPR-DJ/zcprdemo.com
+Source/ZPM3/autotog.com
+Source/ZPM3/clrhist.com
+Source/ZPM3/cpmldr.com
+Source/ZPM3/setz3.com
+Tools/unix/OpenSpin/build/
+Tools/unix/zxcc/config.h
+Tools/unix/zxcc/zxcc
+Binary/Apps/bbcbasic.txt
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 00000000..7c12e6b0
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+{
+  "files.trimTrailingWhitespace": false,
+  "files.eol": "\r\n"
+}
diff --git a/Binary/Apps/Clean.cmd b/Binary/Apps/Clean.cmd
index 2c3c648e..49043dc1 100644
--- a/Binary/Apps/Clean.cmd
+++ b/Binary/Apps/Clean.cmd
@@ -8,5 +8,6 @@ if exist *.hlp del *.hlp
 if exist Tunes\*.pt? del Tunes\*.pt?
 if exist Tunes\*.mym del Tunes\*.mym
 if exist Tunes\*.vgm del Tunes\*.vgm
+if exist bbcbasic.txt del bbcbasic.txt
 
 pushd Test && call Clean || exit /b 1 & popd
diff --git a/Binary/Apps/Makefile b/Binary/Apps/Makefile
index 940d9ae2..dc268ac8 100644
--- a/Binary/Apps/Makefile
+++ b/Binary/Apps/Makefile
@@ -8,4 +8,4 @@ all::
 	mkdir -p Tunes
 
 clean::
-	@rm -f *.bin *.com *.img *.rom *.pdf *.log *.eeprom *.ovr *.hlp *.doc *.COM *.BIN Tunes/*.mym Tunes/*.pt? Tunes/*.vgm
+	@rm -f *.bin *.com *.img *.rom *.pdf *.log *.eeprom *.ovr *.hlp *.doc *.COM *.BIN Tunes/*.mym Tunes/*.pt? Tunes/*.vgm bbcbasic.txt
diff --git a/Binary/Apps/Test/inttest.doc b/Binary/Apps/Test/inttest.doc
new file mode 100644
index 00000000..686c140a
--- /dev/null
+++ b/Binary/Apps/Test/inttest.doc
@@ -0,0 +1,44 @@
+INTTEST
+=======
+
+RomWBW includes an API allowing applications to "hook" interrupts.
+The `INTTEST` utility allows you to test this functionality.
+
+
+** Syntax **
+
+`INTTEST`
+
+
+** Usage **
+
+`INTTEST` is an interactive application.  At startup, it will display
+a list of the interrupt vector slots in your system along with the
+current vector address for each of them.
+
+It then prompts you to enter the slot number (in hex) of a vector to
+hook.  After entering this, the application will watch the hooked
+vector and countdown from 0xFF to 0x00 as interrupts are noted.
+
+When the counter reaches 0x00, the interrupt is unhooked and the
+application terminates.  The application can also be terminated by
+pressing <esc>.
+
+
+** Notes **
+
+If your system is running without interrupts active, the application
+will terminate immediately.
+
+All slots have vectors even if the corresponding interrupt is not
+doing anything.  In this case, the vector is pointing to the "bad
+interrupt" handler.
+
+If you hook a vector that is not receiving any interrupts, the
+down-counter will not do anything.
+
+
+** Etymology* *
+
+The `INTTEST` command is an original product and the source code is
+provided in the RomWBW distribution.
diff --git a/Binary/CPM22/Clean.cmd b/Binary/CPM22/Clean.cmd
new file mode 100644
index 00000000..1534a178
--- /dev/null
+++ b/Binary/CPM22/Clean.cmd
@@ -0,0 +1,4 @@
+@echo off
+setlocal
+
+if exist *.sys del *.sys
diff --git a/Binary/CPM22/Makefile b/Binary/CPM22/Makefile
new file mode 100644
index 00000000..e7fda1a3
--- /dev/null
+++ b/Binary/CPM22/Makefile
@@ -0,0 +1,7 @@
+TOOLS = ../../Tools
+MOREDIFF := $(shell $(TOOLS)/unix/casefn.sh *.spr)
+
+include $(TOOLS)/Makefile.inc
+
+clean::
+	@rm -f *.sys
diff --git a/Binary/CPM22/ReadMe.txt b/Binary/CPM22/ReadMe.txt
new file mode 100644
index 00000000..1f0379b5
--- /dev/null
+++ b/Binary/CPM22/ReadMe.txt
@@ -0,0 +1,23 @@
+***********************************************************************
+***                                                                 ***
+***                          R o m W B W                            ***
+***                                                                 ***
+***                    Z80/Z180 System Software                     ***
+***                                                                 ***
+***********************************************************************
+
+This directory contains the CP/M 2.2 system files for the RomWBW CP/M 2.2
+adaptation.  All of these files are already included on the CP/M
+boot disk images.  However if you are creating a CP/M boot disk
+manually, you should copy all of these files to the boot disk.
+
+Note: Two file have been provided one for RomWBW HBIOS, and one for UNA
+BIOS. One of these files must be installed on the system boot track.
+This is usually achieved by the SYSCOPY utility e.g.
+
+SYSCOPY a:=cpm_wbw.sys
+
+These files should also be copied to any CP/M 2.2 boot disks on your
+system when you upgrade your ROM firmware.  Some of these files
+*must* match the version of the RomWBW firmware you are using for
+proper operation of your system.
diff --git a/Binary/Clean.cmd b/Binary/Clean.cmd
index c6ad4ab5..110393d5 100644
--- a/Binary/Clean.cmd
+++ b/Binary/Clean.cmd
@@ -12,6 +12,9 @@ if exist *.pdf del *.pdf
 if exist *.eeprom del *.eeprom
 
 pushd Apps && call Clean || exit /b 1 & popd
+pushd CPM22 && call Clean || exit /b 1 & popd
 pushd CPM3 && call Clean || exit /b 1 & popd
+pushd QPM && call Clean || exit /b 1 & popd
+pushd ZSDOS && call Clean || exit /b 1 & popd
 pushd ZPM3 && call Clean || exit /b 1 & popd
 pushd CPNET && call Clean || exit /b 1 & popd
diff --git a/Binary/Makefile b/Binary/Makefile
index 76f45163..2d8595c3 100644
--- a/Binary/Makefile
+++ b/Binary/Makefile
@@ -1,6 +1,6 @@
 TOOLS = ../Tools
 MOREDIFF := $(shell $(TOOLS)/unix/casefn.sh *.img *.rom *.com *.eeprom)
-SUBDIRS = Apps CPM3 ZPM3 CPNET
+SUBDIRS = Apps CPM22 CPM3 QPM ZSDOS ZPM3 CPNET
 
 include $(TOOLS)/Makefile.inc
 
diff --git a/Binary/QPM/Clean.cmd b/Binary/QPM/Clean.cmd
new file mode 100644
index 00000000..1534a178
--- /dev/null
+++ b/Binary/QPM/Clean.cmd
@@ -0,0 +1,4 @@
+@echo off
+setlocal
+
+if exist *.sys del *.sys
diff --git a/Binary/QPM/Makefile b/Binary/QPM/Makefile
new file mode 100644
index 00000000..3f7ea93b
--- /dev/null
+++ b/Binary/QPM/Makefile
@@ -0,0 +1,7 @@
+TOOLS = ../../Tools
+MOREDIFF := $(shell $(TOOLS)/unix/casefn.sh *.spr)
+
+include $(TOOLS)/Makefile.inc
+
+clean::
+	@rm -f *.sys *.bin
diff --git a/Binary/QPM/ReadMe.txt b/Binary/QPM/ReadMe.txt
new file mode 100644
index 00000000..8386b13f
--- /dev/null
+++ b/Binary/QPM/ReadMe.txt
@@ -0,0 +1,21 @@
+***********************************************************************
+***                                                                 ***
+***                          R o m W B W                            ***
+***                                                                 ***
+***                    Z80/Z180 System Software                     ***
+***                                                                 ***
+***********************************************************************
+
+This directory contains the QPM 2.7 system files for the RomWBW QPM 2.7
+adaptation.  All of these files are already included on the QPM
+boot disk images.  However if you are creating a QPM boot disk
+manually, you should copy all of these files to the boot disk.
+
+Note: Two file have been provided one for RomWBW HBIOS, and one for UNA
+BIOS. One of these files must be installed on the system boot track.
+Refer to the QPM Documentation for installing QPM
+
+These files should also be copied to any QPM boot disks on your
+system when you upgrade your ROM firmware.  Some of these files
+*must* match the version of the RomWBW firmware you are using for
+proper operation of your system.
diff --git a/Binary/ReadMe.txt b/Binary/ReadMe.txt
index d25fa002..bdd7f0cd 100644
--- a/Binary/ReadMe.txt
+++ b/Binary/ReadMe.txt
@@ -6,37 +6,37 @@
 ***                                                                 ***
 ***********************************************************************
 
-This directory ("Binary") is part of the RomWBW System Software 
-distribution archive.  It contains the completed binary outputs of 
-the build process.  As described below, these files are used to 
+This directory ("Binary") is part of the RomWBW System Software
+distribution archive.  It contains the completed binary outputs of
+the build process.  As described below, these files are used to
 assemble a working RetroBrew Computers system.
 
-The files in this directory are created by the build process that is 
-documented in the ReadMe.txt file in the Source directory.  When 
-released the directory is populated with the default output files.  
-However, the output of custom builds will be placed in this directory 
+The files in this directory are created by the build process that is
+documented in the ReadMe.txt file in the Source directory.  When
+released the directory is populated with the default output files.
+However, the output of custom builds will be placed in this directory
 as well.
 
-If you only see a few files in this directory, then you downloaded 
-just the source from GitHub.  To retrieve the full release download 
-package, go to https://github.com/wwarthen/RomWBW.  On this page, 
-look for the text "XX releases" where XX is a number. Click on this 
-text to go to the releases page.  On this page, you will see the 
-latest releases listed.  For each release, you will see a package 
-file called something like "RomWBW-2.9.0-Package.zip".  Click on the 
+If you only see a few files in this directory, then you downloaded
+just the source from GitHub.  To retrieve the full release download
+package, go to https://github.com/wwarthen/RomWBW.  On this page,
+look for the text "XX releases" where XX is a number. Click on this
+text to go to the releases page.  On this page, you will see the
+latest releases listed.  For each release, you will see a package
+file called something like "RomWBW-2.9.0-Package.zip".  Click on the
 package file for the release you want to download.
 
 ROM Firmware Images (<plt>_<cfg>.rom)
 -------------------------------------
 
-The files with a ".rom" extension are binary images ready to program 
-into an appropriate PROM.  These files are named with the format 
-<plt>_<cfg>.rom. <plt> refers to the primary platform such as Zeta, 
-N8, Mark IV, etc.  <cfg> refers to the specific configuration.  In 
-general, there will be a standard configuration ("std") for each 
-platform.  So, for example, the file called MK4_std.rom is a ROM 
-image for the Mark IV with the standard configuration. If a custom 
-configuration called "custom" is created and built, a new file called 
+The files with a ".rom" extension are binary images ready to program
+into an appropriate PROM.  These files are named with the format
+<plt>_<cfg>.rom. <plt> refers to the primary platform such as Zeta,
+N8, Mark IV, etc.  <cfg> refers to the specific configuration.  In
+general, there will be a standard configuration ("std") for each
+platform.  So, for example, the file called MK4_std.rom is a ROM
+image for the Mark IV with the standard configuration. If a custom
+configuration called "custom" is created and built, a new file called
 MK4_custom.rom will be added to this directory.
 
 Documentation of the pre-built ROM Images is contained in
@@ -54,52 +54,52 @@ contents.  Refer to the RomWBW User Guide for more information.
 ROM Executable Images (<plt>_<cfg>.com)
 ---------------------------------------
 
-When a ROM image (".rom") is created, an executable version of the 
-ROM is also created.  These files have the same naming convention as 
-the ROM Image files, but have the extension ".com".  These files can 
+When a ROM image (".rom") is created, an executable version of the
+ROM is also created.  These files have the same naming convention as
+the ROM Image files, but have the extension ".com".  These files can
 be copied to a working system and run like a normal CP/M application.
 
-When run on the target system, they install in RAM just like they had 
+When run on the target system, they install in RAM just like they had
 been loaded from  ROM.  This allows a new ROM build to be tested
 without reprogramming the actual ROM.
 
-WARNING: In a few cases the .com file is too big to load.  If you get 
-a message like "Full" or "BAD LOAD" when trying to load one of the 
-.com files, it is too big.  In these cases, you will not be able to 
+WARNING: In a few cases the .com file is too big to load.  If you get
+a message like "Full" or "BAD LOAD" when trying to load one of the
+.com files, it is too big.  In these cases, you will not be able to
 test the ROM prior to programming it.
 
 VDU ROM Image (vdu.rom)
 -----------------------
 
-The VDU video board requires a dedicated onboard ROM containing the 
-font data.  The "vdu.rom" file contains the binary data to program 
+The VDU video board requires a dedicated onboard ROM containing the
+font data.  The "vdu.rom" file contains the binary data to program
 onto that chip.
 
-Disk Images (fd_*.img, hd_*.img, psys.img)
-------------------------------------------
+Disk Images (fd_*.img, hd_*.img)
+--------------------------------
 
-RomWBW includes a mechanism for generating floppy disk and hard disk 
-binary images that are ready to copy directly to a floppy, hard disk, 
-CF Card, or SD Card which will then be ready for use in any 
+RomWBW includes a mechanism for generating floppy disk and hard disk
+binary images that are ready to copy directly to a floppy, hard disk,
+CF Card, or SD Card which will then be ready for use in any
 RomWBW-based system.
 
-Essentially, these files contain prepared floppy and hard disk images 
-with a large set of programs and related files.  By copying the 
-contents of these files to appropriate media as described below, you 
+Essentially, these files contain prepared floppy and hard disk images
+with a large set of programs and related files.  By copying the
+contents of these files to appropriate media as described below, you
 can quickly create ready-to-use media.  Win32DiskImager or
 RawWriteWin can be used to copy images directly to media.  These
 programs are included in the RomWBW Tools directory.
 
-The fd_*.img files are floppy disk images.  They are sized for 1.44MB 
-floppy media and can be copied to actual floppy disks using 
-RawWriteWin (as long as you have access to a floppy drive on your 
-Windows computer).  The resulting floppy disks will be usable on any 
+The fd_*.img files are floppy disk images.  They are sized for 1.44MB
+floppy media and can be copied to actual floppy disks using
+RawWriteWin (as long as you have access to a floppy drive on your
+Windows computer).  The resulting floppy disks will be usable on any
 RomWBW-based system with floppy drive(s).
 
-Likewise, the hd512_*.img and hd1k_*.img files are hard disk images.  
-Each file is intended to be copied to the start of any type of hard 
-disk media (typically a CF Card or SD Card). The resulting media will 
-be usable on any RomWBW-based system that accepts the corresponding 
+Likewise, the hd512_*.img and hd1k_*.img files are hard disk images.
+Each file is intended to be copied to the start of any type of hard
+disk media (typically a CF Card or SD Card). The resulting media will
+be usable on any RomWBW-based system that accepts the corresponding
 media type.
 
 NOTE: The hd512_*.img files are equivalent to the hd_*.img
@@ -109,39 +109,86 @@ maximum number of CP/M directory entries from 512 to 1024.
 Refer to the ReadMe.txt in the Source/Images directory
 for details.
 
-Documentation of the pre-built disk images is contained in the 
+Documentation of the pre-built disk images is contained in the
 "RomWBW User Guide" found in the Doc directory.  The contents of
 the disk images is contained in the "RomWBW Disk Catalog", but it
 is significantly out-of-date.
 
-The contents of the floppy/hard disk images are created by 
-the BuildImages.cmd script in the Source directory.  Additional 
-information on how to generate custom disk images is found in the 
+The contents of the floppy/hard disk images are created by
+the BuildImages.cmd script in the Source directory.  Additional
+information on how to generate custom disk images is found in the
 Source\Images ReadMe.txt file.
 
-The psys.img file contains a full implementation of the UCSD p-System 
-for the Z80 running under RomWBW.  This image file must be placed on 
-disk media by itself (not appended or concatenated with hd*.img files.  
-Refer to the Source/pSys/ReadMe.txt file for more information on the 
+Disk Images (hd512_combo.img, hd1k_combo.img, *_std_hd1k_combo.img)
+-------------------------------------------------------------------
+
+The hd512_combo.img and hd1k_combo.img file are the primary combo
+disk image files suitable for most platforms.
+
+The *_std_hd1k_combo.img files are platform specific combo files
+typically used in romless platforms, they also contain RomWBW binary code
+that is loaded at boot time into RAM
+
+Disk Images (hd1k_prefix.dat, *_std_hd1k_prefix.dat)
+----------------------------------------------------
+
+The hd1k_prefix.dat file is part of the combo disk images and is
+applied to hd1k image files as a prefix, it contains the standard
+partion table.
+
+The *_std_hd1k_prefix.dat files are platform specific prefixes
+typically used in romless platforms, they also contain RomWBW binary code
+that is loaded at boot time into RAM
+
+Disk Images (psys.img)
+----------------------
+
+The psys.img file contains a full implementation of the UCSD p-System
+for the Z80 running under RomWBW.  This image file must be placed on
+disk media by itself (not appended or concatenated with hd*.img files.
+Refer to the Source/pSys/ReadMe.txt file for more information on the
 p-System implementation.
 
 Propeller ROM Images (*.eeprom)
 -------------------------------
 
-The files with and extension of ".eeprom" contain the binary images 
-to be programmed into the Propeller-based boards.  The list below 
+The files with and extension of ".eeprom" contain the binary images
+to be programmed into the Propeller-based boards.  The list below
 indicates which file targets each of the Propeller board variants:
 
 	ParPortProp	ParPortProp.eeprom
 	PropIO V1	PropIO.eeprom
 	PropIO V2	PropIO2.eeprom
 
-Refer to the board documentation of the boards for more information 
+Refer to the board documentation of the boards for more information
 on how to program the EEPROMs on these boards.
 
+SUB DIRECTORIES
+===============
+
 Apps Directory
 --------------
 
 The Apps subdirectory contains the executable application files that
 are specific to RomWBW.  The source for these applications is found
-in the Source\Apps directory of the distribution.
\ No newline at end of file
+in the Source\Apps directory of the distribution.
+
+CPNET Directory
+---------------
+
+This directory contains the CP/NET client packages.  Please refer to
+the RomWBW User Guide for instructions on installing these packages,
+or see the Readme.txt file in this sub-directory
+
+CPM22 CPM3 ZSDOS ZPM3 QPM Directories
+-------------------------------------
+
+These directories contains the system files for the RomWBW adaptations
+for each operating system.  All of these files are already included on
+the boot disk images.  However if you are creating a o/s boot disk
+manually, you will need copy all of these files to the boot disk.
+
+These files should also be copied to any boot disks on your
+system when you upgrade your ROM firmware.  Some of these files
+*must* match the version of the RomWBW firmware you are using for
+proper operation of your system.
diff --git a/Binary/ZSDOS/Clean.cmd b/Binary/ZSDOS/Clean.cmd
new file mode 100644
index 00000000..1534a178
--- /dev/null
+++ b/Binary/ZSDOS/Clean.cmd
@@ -0,0 +1,4 @@
+@echo off
+setlocal
+
+if exist *.sys del *.sys
diff --git a/Binary/ZSDOS/Makefile b/Binary/ZSDOS/Makefile
new file mode 100644
index 00000000..e7fda1a3
--- /dev/null
+++ b/Binary/ZSDOS/Makefile
@@ -0,0 +1,7 @@
+TOOLS = ../../Tools
+MOREDIFF := $(shell $(TOOLS)/unix/casefn.sh *.spr)
+
+include $(TOOLS)/Makefile.inc
+
+clean::
+	@rm -f *.sys
diff --git a/Binary/ZSDOS/ReadMe.txt b/Binary/ZSDOS/ReadMe.txt
new file mode 100644
index 00000000..f43a12d4
--- /dev/null
+++ b/Binary/ZSDOS/ReadMe.txt
@@ -0,0 +1,23 @@
+***********************************************************************
+***                                                                 ***
+***                          R o m W B W                            ***
+***                                                                 ***
+***                    Z80/Z180 System Software                     ***
+***                                                                 ***
+***********************************************************************
+
+This directory contains the ZSDOS system files for the RomWBW ZSDOS
+adaptation.  All of these files are already included on the ZSDOS
+boot disk images.  However if you are creating a ZSDOS boot disk
+manually, you should copy all of these files to the boot disk.
+
+Note: Two file have been provided one for RomWBW HBIOS, and one for UNA
+BIOS. One of these files must be installed on the system boot track.
+This is usually achieved by the SYSCOPY utility e.g.
+
+SYSCOPY a:=zsys_wbw.sys
+
+These files should also be copied to any ZSDOS boot disks on your
+system when you upgrade your ROM firmware.  Some of these files
+*must* match the version of the RomWBW firmware you are using for
+proper operation of your system.
diff --git a/Doc/CPM Manual.pdf b/Doc/CPM/CPM Manual.pdf
similarity index 100%
rename from Doc/CPM Manual.pdf
rename to Doc/CPM/CPM Manual.pdf
diff --git a/Doc/CPM3 Command Summary.pdf b/Doc/CPM/CPM3 Command Summary.pdf
similarity index 100%
rename from Doc/CPM3 Command Summary.pdf
rename to Doc/CPM/CPM3 Command Summary.pdf
diff --git a/Doc/CPM3 Programmers Guide.pdf b/Doc/CPM/CPM3 Programmers Guide.pdf
similarity index 100%
rename from Doc/CPM3 Programmers Guide.pdf
rename to Doc/CPM/CPM3 Programmers Guide.pdf
diff --git a/Doc/CPM3 System Guide.pdf b/Doc/CPM/CPM3 System Guide.pdf
similarity index 100%
rename from Doc/CPM3 System Guide.pdf
rename to Doc/CPM/CPM3 System Guide.pdf
diff --git a/Doc/CPM3 Users Guide.pdf b/Doc/CPM/CPM3 Users Guide.pdf
similarity index 100%
rename from Doc/CPM3 Users Guide.pdf
rename to Doc/CPM/CPM3 Users Guide.pdf
diff --git a/Doc/NZCOM Users Manual.pdf b/Doc/CPM/NZCOM Users Manual.pdf
similarity index 100%
rename from Doc/NZCOM Users Manual.pdf
rename to Doc/CPM/NZCOM Users Manual.pdf
diff --git a/Doc/CPM/ReadMe.txt b/Doc/CPM/ReadMe.txt
new file mode 100644
index 00000000..92d2189d
--- /dev/null
+++ b/Doc/CPM/ReadMe.txt
@@ -0,0 +1,70 @@
+***********************************************************************
+***                                                                 ***
+***                          R o m W B W                            ***
+***                                                                 ***
+***                    Z80/Z180 System Software                     ***
+***                                                                 ***
+***********************************************************************
+
+This directory ("Doc/CPM") is part of the RomWBW System Software
+distribution archive.  It contains documentation for the CP/M and
+CP/M work-alike operating system components of the system.
+
+
+CPM Manual ("CPM Manual.pdf")
+-----------------------------
+
+The original DRI CP/M 2.x Operating System Manual.  This should be
+considered the primary reference for system operation.  The section
+on CP/M 2 Alteration can be ignored since this work has already been
+completed as part of the RomWBW distribution.
+
+
+CPM3 Command Summary ("CPM3 Command Summary.pdf")
+CPM3 Programmer's Guide ("CPM3 Programmers Guide.pdf")
+CPM3 System Guide ("CPM3 System Guide.pdf")
+CPM3 User's Guide ("CPM3 Users Guide.pdf")
+------------------------------------------------------
+
+The original DRI CP/M 3.0 Operating System Documentation Set.  This
+should be considered the primary reference for CP/M 3 system operation.
+
+
+NZCOM, Z3PLUS, and replace ZCPR3.3 Documentation
+------------------------------------------------
+
+NZCOM operating system operation manual. ("NZCOM Users Manual.pdf")
+Z3PLUS operating system operation manual.  ("Z3PLUS Users Manual.pdf")
+Z-System User Guide ("Z-System User Guide.pdf")
+ZCPR3.3 Users Guide ("ZCPR3.3 Users Guide.pdf")
+
+
+QP/M 2.7 Installation Guide and Supplements ("qpm27.pdf")
+QP/M 2.7 Interface Guide ("qdos27.pdf")
+QP/M 2.7 Features and Facilities ("qcp27.pdf")
+--------------------------------------------
+
+Official documentation set for QP/M 2.7 from original QP/M distribution.
+
+
+ZCPR Manual ("ZCPR Manual.pdf")
+-------------------------------
+
+ZCPR is the command proccessor portion of Z-System.  This is the
+manual for ZCPR 1.x as included in RomWBW.  The installation
+instructions can be ignored since that work has already been
+completed as part of the RomWBW distribution.
+
+ZCPR D&J Manual ("ZCPR-DJ.doc")
+-------------------------------
+
+ZCPR D&J User Manual.  This manual supplements the ZCPR Manual.
+
+
+ZSDOS Manual ("ZSDOS Manual.pdf")
+---------------------------------
+
+ZSDOS is the DOS portion of Z-System.  This is the manual for ZSDOS
+1.x as included in RomWBW.  The installation instructions can be
+ignored since that work has already been completed as part of the
+RomWBW distribution.
diff --git a/Doc/CPM/Z-System Users Guide.pdf b/Doc/CPM/Z-System Users Guide.pdf
new file mode 100644
index 00000000..67e10468
Binary files /dev/null and b/Doc/CPM/Z-System Users Guide.pdf differ
diff --git a/Doc/CPM/Z3PLUS Users Manual.pdf b/Doc/CPM/Z3PLUS Users Manual.pdf
new file mode 100644
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diff --git a/Doc/ZCPR Manual.pdf b/Doc/CPM/ZCPR Manual.pdf
similarity index 100%
rename from Doc/ZCPR Manual.pdf
rename to Doc/CPM/ZCPR Manual.pdf
diff --git a/Doc/ZCPR-DJ.doc b/Doc/CPM/ZCPR-DJ.doc
similarity index 100%
rename from Doc/ZCPR-DJ.doc
rename to Doc/CPM/ZCPR-DJ.doc
diff --git a/Doc/CPM/ZCPR3.3 User Guide.pdf b/Doc/CPM/ZCPR3.3 User Guide.pdf
new file mode 100644
index 00000000..05737195
Binary files /dev/null and b/Doc/CPM/ZCPR3.3 User Guide.pdf differ
diff --git a/Doc/ZSDOS Manual.pdf b/Doc/CPM/ZSDOS Manual.pdf
similarity index 100%
rename from Doc/ZSDOS Manual.pdf
rename to Doc/CPM/ZSDOS Manual.pdf
diff --git a/Doc/qcp27.pdf b/Doc/CPM/qcp27.pdf
similarity index 100%
rename from Doc/qcp27.pdf
rename to Doc/CPM/qcp27.pdf
diff --git a/Doc/qdos27.pdf b/Doc/CPM/qdos27.pdf
similarity index 100%
rename from Doc/qdos27.pdf
rename to Doc/CPM/qdos27.pdf
diff --git a/Doc/qpm27.pdf b/Doc/CPM/qpm27.pdf
similarity index 100%
rename from Doc/qpm27.pdf
rename to Doc/CPM/qpm27.pdf
diff --git a/Doc/ChangeLog.txt b/Doc/ChangeLog.txt
index 551e3362..9b31569a 100644
--- a/Doc/ChangeLog.txt
+++ b/Doc/ChangeLog.txt
@@ -14,6 +14,40 @@ Version 3.5
 - DDW: Added support for Duodyne Media board
 - WBW: Auto restore TMS video on user reset (CP/M warm boot)
 - L?B: Added support for NABU w/ RomWBW Option Board
+- MAP: Reorganization of Doc directory introducing subfolders
+- WBW: Upgraded BBCBASIC to v5.00
+- W?S: Updated FLASH utility to v1.3.9
+- WBW: Support RCBus PS/2 Keyboard (EP/Sally)
+- M?R: Update Timer app to display output in decimal
+- WBW: Preliminary support for S100 FPGA Z80 platform
+- WBW: Added simple serial (SSER) driver
+- WBW: Added preliminary support for S100 FPGA Z80 SD Cards
+- M?R: Consolidated ROM Applications document into the Applications document
+- M?R: Reviewed and substantially improved the Applications document
+- WBW: Added support for DS1305 RTC on S100 FPGA Z80
+- WBW: Added support for Les Bird's RCBus Graphics/Sound/Joystick module
+- WBW: Added support for Les Bird's Dual 16C550 UART module
+- WBW: Refactor UART driver for more flexible configuration
+- M?R: Added hour/minute/second display to timer app
+- WBW: Substantial customization of NZ-COM disk image
+- WBW: Refactor build post-processing (ZRC, ZZRCC, etc.)
+- MAP: Improved section Real Time Clock in User Guide document
+- WBW: Support for Hitachi HD44780-based LCD display
+- DRJ: Added support for Genesis STD Bus Z180 platform
+- MAP: Improved section Disk Management in User Guide document
+- WBW: Add CPU speed selection for HEATH platform to HBIOS
+- WBW: Add Warm/Cold reboot options to CPUSPD utility
+- D?N: Added support for eZ80 CPU
+- MAP: Contributed COPYSL utility
+- MAP: Added new HBIOS function EXT_SLICE (orginally SYSGET_DIOMED)
+- MAP: ROMLDR now uses EXT_SLICE to get Slice Sector for boot
+- MAP: CBIOS now uses EXT_SLICE during drive selection
+- MAP: CPM3 Boot Loader, and BIOS (drive select) now use EXT_SLICE
+- M?R: Added REBOOT application
+- MAP: Significant improvement in Disk Catalog document
+- MAP: Added Disk Image for the Z3PLUS (Z-System for CP/M-Plus) os.
+- H?H: Fix XModem 12.3 WRERR to put CAN char in proper register to send.
+- MAP: Initial NVRAM configuration infrastructure
 
 Version 3.4
 -----------
@@ -682,4 +716,4 @@ interrupts disabled the BIOS will now start OK even if some vagrant
 hardware is asserting an interrupt (DISKIO).  Seems like this is better
 anyway -- general idea is that we only enable interupts precisely
 when desired for very specific controled purposes since there is no
-concept of interrupt dispatching available.
\ No newline at end of file
+concept of interrupt dispatching available.
diff --git a/Doc/Contrib/AY-3-8910 Registers.xlsx b/Doc/Contrib/AY-3-8910 Registers.xlsx
new file mode 100644
index 00000000..6fdc0b5e
Binary files /dev/null and b/Doc/Contrib/AY-3-8910 Registers.xlsx differ
diff --git a/Doc/Contrib/ZSystem.txt b/Doc/Contrib/ZSystem.txt
index 0dda8d31..f5166ef9 100644
--- a/Doc/Contrib/ZSystem.txt
+++ b/Doc/Contrib/ZSystem.txt
@@ -4,7 +4,7 @@ ZSDOS Adaptation Notes for RomWBW
 Wayne Warthen
 wwarthen@gmail.com
 
-This file is a log of the work done to adapt the ZSDOS distribution to the N8VEM platforms under RomWBW.  I strongly recommend reviewing the zsdos.pdf file in the Doc directory.
+This file is a log of the work done to adapt the ZSDOS distribution to the N8VEM platforms under RomWBW.  I strongly recommend reviewing the zsdos.pdf file in the Doc/CPM directory.
 
 The starting point was the general public release of ZSDOS that is generally available.  The first line of the README file is "ZSDOS-GP.  General Public Release of the ZSDOS 1.x Operating System."
 
@@ -20,7 +20,7 @@ Beyond the construction and integration of the actual DOS itself, the majority o
 
 The remainder of this document details the changes I made as I went along.  In all cases, my goal was to keep the result as close to the original distribution as possible.  I started by copying all of the files from the distribution (contained in zsdos2.zip) into Support\ZSDOS.  From there I tested, modified, updated, and customized as documented below.  Finally, I cherry picked files that made sense to include on the ZSystem ROM disks.
 
-1. CLOCKS.DAT has been updated to include the RomWBW clock driver, HBCLK.  I have also added the SIMHCLOK clock driver.
+1. CLOCKS.DAT has been updated to include the RomWBW clock driver, WBWCLK.  I have also added the SIMHCLOK clock driver.
 
 2. STAMPS.DAT has been replaced with an updated version.  The update was called STAMPS11.DAT and was found on the Walnut Creek CP/M CDROM.  The original version has a bug that prevents RSX (resident system extension) mode to load properly.
 
@@ -52,4 +52,4 @@ Usage Notes
 
 6. After using PUTDS to initialize a directory for ZDS date stamping, I am finding that it is necessary to run RELOG before the stamping routines will actually start working.
 
-7. Generic CP/M PIP and ZSDOS path searching do not play well together if you use PIP to copy to or from a directory in the ZSDOS search path.  Best to use COPY from the ZSDOS distribution.
\ No newline at end of file
+7. Generic CP/M PIP and ZSDOS path searching do not play well together if you use PIP to copy to or from a directory in the ZSDOS search path.  Best to use COPY from the ZSDOS distribution.
diff --git a/Doc/Hard Disk Anatomy.pdf b/Doc/Hard Disk Anatomy.pdf
index a65a9912..d525eb68 100644
Binary files a/Doc/Hard Disk Anatomy.pdf and b/Doc/Hard Disk Anatomy.pdf differ
diff --git a/Doc/Aztec_C_1.06_User_Manual_Mar84.pdf b/Doc/Language/Aztec_C_1.06_User_Manual_Mar84.pdf
similarity index 100%
rename from Doc/Aztec_C_1.06_User_Manual_Mar84.pdf
rename to Doc/Language/Aztec_C_1.06_User_Manual_Mar84.pdf
diff --git a/Doc/Cowgol Language.pdf b/Doc/Language/Cowgol Language.pdf
similarity index 100%
rename from Doc/Cowgol Language.pdf
rename to Doc/Language/Cowgol Language.pdf
diff --git a/Doc/HI-TECH Z80 C Compiler Manual.txt b/Doc/Language/HI-TECH Z80 C Compiler Manual.txt
similarity index 100%
rename from Doc/HI-TECH Z80 C Compiler Manual.txt
rename to Doc/Language/HI-TECH Z80 C Compiler Manual.txt
diff --git a/Doc/Microsoft Basic-80 Reference Manual v5.0.pdf b/Doc/Language/Microsoft Basic-80 Reference Manual v5.0.pdf
similarity index 100%
rename from Doc/Microsoft Basic-80 Reference Manual v5.0.pdf
rename to Doc/Language/Microsoft Basic-80 Reference Manual v5.0.pdf
diff --git a/Doc/Microsoft_FORTRAN-80_Users_Manual_1977.pdf b/Doc/Language/Microsoft_FORTRAN-80_Users_Manual_1977.pdf
similarity index 100%
rename from Doc/Microsoft_FORTRAN-80_Users_Manual_1977.pdf
rename to Doc/Language/Microsoft_FORTRAN-80_Users_Manual_1977.pdf
diff --git a/Doc/Language/ReadMe.txt b/Doc/Language/ReadMe.txt
new file mode 100644
index 00000000..3fb9b397
--- /dev/null
+++ b/Doc/Language/ReadMe.txt
@@ -0,0 +1,62 @@
+***********************************************************************
+***                                                                 ***
+***                          R o m W B W                            ***
+***                                                                 ***
+***                    Z80/Z180 System Software                     ***
+***                                                                 ***
+***********************************************************************
+
+This directory ("Doc/Language") is part of the RomWBW System Software
+distribution archive.  It contains documentation for Programming
+Languages provided with the system.
+
+
+Aztec C Compiler User Manual (Aztec_C_1.06_User_Manual_Mar84.pdf)
+-----------------------------------------------------------------
+
+Official user manual for the Aztec C Compiler included in the aztecc disk image.
+
+
+Borland TurboPascal User Manual (Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf)
+------------------------------------------------------------------------------------
+
+Official user manual Borland TurboPascal included in the pascal disk image.
+
+
+Cowgol Lanaguage (Cowgol Language.pdf)
+--------------------------------------
+
+Documentation for Cowgol Language included in the cowgol disk image
+
+
+HI-TECH C Compiler User Manual (HI-TECH Z80 C Compiler Manual.txt)
+------------------------------------------------------------------
+
+Official user manual for the HI-TECH C Compiler included in the
+hitechc disk image.
+
+
+Microsoft Basic-80 Reference Manual v5.0 (Microsoft Basic-80 Reference Manual v5.0.pdf)
+---------------------------------------------------------------------------------------
+
+Official manual for Microsoft BASIC as included in RomWBW.
+
+
+Microsoft FORTRAN-80 User Manual (Microsoft_FORTRAN-80_Users_Manual_1977.pdf)
+-----------------------------------------------------------------------------
+
+Official user manual for Microsoft's FORTRAN-80 compiler included in the fortran
+disk image.
+
+
+Z80 Assembler User Manual (z80asm (SLR Systems).pdf)
+----------------------------------------------------
+
+Official user manual for the Z80 Macro Assembler by SLR Systems
+included in the z80asm disk image.
+
+
+
+
+
+
diff --git a/Doc/Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf b/Doc/Language/Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf
similarity index 100%
rename from Doc/Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf
rename to Doc/Language/Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf
diff --git a/Doc/z80asm (SLR Systems).pdf b/Doc/Language/z80asm (SLR Systems).pdf
similarity index 100%
rename from Doc/z80asm (SLR Systems).pdf
rename to Doc/Language/z80asm (SLR Systems).pdf
diff --git a/Doc/ReadMe.txt b/Doc/ReadMe.txt
index 49f8a7cc..1e183872 100644
--- a/Doc/ReadMe.txt
+++ b/Doc/ReadMe.txt
@@ -10,6 +10,18 @@ This directory ("Doc") is part of the RomWBW System Software
 distribution archive.  It contains documentation for components of
 the system.
 
+CPM (Directory)
+---------------
+
+Documentation specific to CP/M, including all versions and derivatives.
+
+
+Language (Directory)
+--------------------
+
+Documentation specific to programming languages, provided with the system
+
+
 ChangeLog.txt
 -------------
 
@@ -31,25 +43,6 @@ and utilities are detailed in the  Applications and
 ROM Applications documents.
 
 
-CPM Manual ("CPM Manual.pdf")
------------------------------
-
-The original DRI CP/M 2.x Operating System Manual.  This should be
-considered the primary reference for system operation.  The section
-on CP/M 2 Alteration can be ignored since this work has already been
-completed as part of the RomWBW distribution.
-
-
-CPM3 Command Summary ("CPM3 Command Summary.pdf")
-CPM3 Programmer's Guide ("CPM3 Programmers Guide.pdf")
-CPM3 System Guide ("CPM3 System Guide.pdf")
-CPM3 User's Guide ("CPM3 Users Guide.pdf")
-------------------------------------------------------
-
-The original DRI CP/M 3.0 Operating System Documentation Set.  This
-should be considered the primary reference for CP/M 3 system operation.
-
-
 DDTZ Manual ("DDTZ.doc")
 ------------------------
 
@@ -69,47 +62,6 @@ Hard Disk Anatomy ("Hard Disk Anatomy.pdf")
 Diagram of a CP/M & MS-DOS (FAT) hybrid hard disk layout.
 
 
-NZCOM User's Manual ("NZCOM Users Manual.pdf")
-----------------------------------------------
-
-NZCOM operating system operation manual.
-
-
-ZCPR Manual ("ZCPR Manual.pdf")
--------------------------------
-
-ZCPR is the command proccessor portion of Z-System.  This is the
-manual for ZCPR 1.x as included in RomWBW.  The installation
-instructions can be ignored since that work has already been
-completed as part of the RomWBW distribution.
-
-ZCPR D&J Manual ("ZCPR-DJ.doc")
--------------------------------
-
-ZCPR D&J User Manual.  This manual supplements the ZCPR Manual.
-
-
-ZSDOS Manual ("ZSDOS Manual.pdf")
----------------------------------
-
-ZSDOS is the DOS portion of Z-System.  This is the manual for ZSDOS
-1.x as included in RomWBW.  The installation instructions can be
-ignored since that work has already been completed as part of the
-RomWBW distribution.
-
-Microsoft Basic-80 Reference Manual v5.0 (Microsoft Basic-80 Reference Manual v5.0.pdf)
----------------------------------------------------------------------------------------
-
-Official manual for Microsoft BASIC as included in RomWBW.
-
-
-QP/M 2.7 Installation Guide and Supplements ("qpm27.pdf")
-QP/M 2.7 Interface Guide ("qdos27.pdf")
-QP/M 2.7 Features and Facilities ("qcp27.pdf")
---------------------------------------------
-
-Official documentation set for QP/M 2.7 from original QP/M distribution.
-
 SIO+CTC Baud Rate Options (SIO+CTC Baud Rate Options.pdf)
 ---------------------------------------------------------
 
@@ -132,37 +84,4 @@ UCSD p-System Users Manual ("UCSD p-System Users Manual.pdf")
 Official user manual for p-System operating system included with
 RomWBW.
 
-
-Z80 Assembler User Manual (z80asm (SLR Systems).pdf)
-----------------------------------------------------
-
-Official user manual for the Z80 Macro Assembler by SLR Systems
-included in the z80asm disk image.
-
-
-HI-TECH C Compiler User Manual (HI-TECH Z80 C Compiler Manual.txt)
-------------------------------------------------------------------
-
-Official user manual for the HI-TECH C Compiler included in the
-hitechc disk image.
-
-
-Borland TurboPascal User Manual (Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf)
-------------------------------------------------------------------------------------
-
-Official user manual Borland TurboPascal included in the pascal disk image.
-
-
-Aztec C Compiler User Manual (Aztec_C_1.06_User_Manual_Mar84.pdf)
------------------------------------------------------------------
-
-Official user manual for the Aztec C Compiler included in the aztecc disk image.
-
-
-FORTRAN-80 User Manual (Microsoft_FORTRAN-80_Users_Manual_1977.pdf)
----------------------------------------------------------------
-
-Official user manual for Microsoft's FORTRAN-80 compiler included in the fortran
-disk image.
-
---WBW 5:18 PM 6/14/2023
\ No newline at end of file
+--WBW 5:18 PM 6/14/2023
diff --git a/Doc/RomWBW Applications.pdf b/Doc/RomWBW Applications.pdf
index ea50c203..6b3ed77d 100644
Binary files a/Doc/RomWBW Applications.pdf and b/Doc/RomWBW Applications.pdf differ
diff --git a/Doc/RomWBW Disk Catalog.pdf b/Doc/RomWBW Disk Catalog.pdf
index 99872a35..e8115b57 100644
Binary files a/Doc/RomWBW Disk Catalog.pdf and b/Doc/RomWBW Disk Catalog.pdf differ
diff --git a/Doc/RomWBW Errata.pdf b/Doc/RomWBW Errata.pdf
index 3ec0d57b..7c09fff8 100644
Binary files a/Doc/RomWBW Errata.pdf and b/Doc/RomWBW Errata.pdf differ
diff --git a/Doc/RomWBW ROM Applications.pdf b/Doc/RomWBW ROM Applications.pdf
deleted file mode 100644
index d04b6903..00000000
Binary files a/Doc/RomWBW ROM Applications.pdf and /dev/null differ
diff --git a/Doc/RomWBW System Guide.pdf b/Doc/RomWBW System Guide.pdf
index 7ec5c43e..64c54ef4 100644
Binary files a/Doc/RomWBW System Guide.pdf and b/Doc/RomWBW System Guide.pdf differ
diff --git a/Doc/RomWBW User Guide.pdf b/Doc/RomWBW User Guide.pdf
index 20925a21..b66ef8f7 100644
Binary files a/Doc/RomWBW User Guide.pdf and b/Doc/RomWBW User Guide.pdf differ
diff --git a/Doc/Testing Notes.txt b/Doc/Testing Notes.txt
deleted file mode 100644
index 9175409f..00000000
--- a/Doc/Testing Notes.txt	
+++ /dev/null
@@ -1,144 +0,0 @@
-SIMH (X)
-----
-- Test UART driver
-- Test HDSK driver
-
-Zeta 1 (X)
-------
-- Test UART driver
-- Test PPP detection (startup w/ and w/o PPP)
-- Test boot to CRT
-- Test PPPSD driver
-- Test PPPCON driver (video & kbd)
-- Test FD driver
-- Test FDU app
-
-Zeta 2 (X)
-------
-- Test UART driver
-- Test PPP detection (startup w/ and w/o PPP)
-- Test boot to CRT
-- Test PPPSD driver
-- Test PPPCON driver (video & kbd)
-- Test FD driver
-- Test FDU app
-
-RCBus (X)
-------
-- Test SIO driver (Serial Module)
-- Test ACIA driver (Dual Serial Module)
-- Test IDE driver (Compact Flash Module)
-- Test PPIDE driver (IDE Module)
-- Test FD driver (SMC and WDC)
-- Test FDU app (SMC and WDC)
-
-N8-2312 (X)
--------
-- Test ASCI driver
-- Test SD driver (CSIO mode)
-- Test FD driver
-- Test FDU app
-- Test TMS driver (video & kbd)
-
-N8-2511 (X)
--------
-- Test ASCI driver
-- Test SD driver (Juha mode)
-- Test FD driver
-- Test FDU app
-- Test TMS driver (video & kbd)
-
-SBC (X)
----
-- Test UART driver
-- Test PPIDE driver
-- Test PPISD driver
-- Test PRP detection
-- Test boot to CRT console
-
-MK4 (X)
----
-- Test ASCI driver
-- Test IDE driver
-- Test SD driver
-- Test PRP detection
-
-RAMF (X)
-----
-- Test RAMF driver
-
-PRP (X)
----
-- Test PRPSD driver
-- Test PRPCON driver (video & kbd)
-
-SCG (X)
----
-- Test TMS driver (video)
-
-VDU (X)
----
-- Test CVDU driver (video & kbd)
-
-CVDU (X)
-----
-- Test CVDU driver (video & kbd)
-
-VGA (X)
----
-- Test VGA driver (video & kbd)
-
-DIO (X)
----
-- Test FD driver
-- Test FDU app
-- Test IDE driver
-
-DIO3 (X)
-----
-- Test FD driver
-- Test FDU app
-- Test PPIDE driver
-
-DIDE (X)
-----
-- Test FD driver
-- Test FDU app
-- Test IDE driver
-
-DSD (X)
----
-- Test SD driver
-
-4UART (X)
------
-- Test UART driver
-
-
-UNA (X)
----
-- General Startup
-- Boot from disk functionality
-- Image loading
-- Monitor
-- XM app
-- ASSIGN app
-- MODE app
-- SYSCOPY app
-- OSLDR app
-- FDU app
-- FDISK80 app
-
-GENERAL (X)
--------
-- Boot to ROM
-- Boot to Disk
-- Boot to Monitor
-- XM app
-- XM port auto-detect
-- ASSIGN app
-- MODE app
-- SYSCOPY app
-- FDU app
-- FDISK80 app
-- TUNE app
diff --git a/Doc/The Cowgol language.pdf b/Doc/The Cowgol language.pdf
deleted file mode 100644
index dd352c1a..00000000
Binary files a/Doc/The Cowgol language.pdf and /dev/null differ
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..d2e716e1
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,48 @@
+FROM ubuntu:jammy-20240111 as basebuilder
+
+# This docker file can be used to build a tool chain docker image for building RomWBW images.
+
+# Tested on a ubuntu host and on Windows un WSL (with docker desktop)
+
+# First build the docker image (will b)
+# docker build --progress plain -t romwbw-chain .
+
+# After you have built the above image (called romwbw-chain), you can use it to compile and build the RomWBW images
+# as per the standard make scripts within RomWBW.
+# Start a new terminal, cd to where you have clone RomWBW, and then run this command: 
+# docker run -v ${PWD}:/src/ --privileged=true -u $(id -u ${USER}):$(id -g ${USER}) -it romwbw-chain:latest
+
+# you can now compile and build the required images:
+
+# cd Tools && make
+# cd Source && make # at least once to build many common units
+# cd Source && make rom ROM_PLATFORM=RCEZ80 ROM_CONFIG=std
+
+# when finish, type 'exit' to return to back to your standard terminal session
+
+LABEL Maintainer="Dean Netherton" \
+      Description="spike to use clang for ez80 target"
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+
+RUN dpkg --add-architecture i386
+RUN sed -i 's/http:\/\/archive\.ubuntu\.com\/ubuntu/http:\/\/au.archive.ubuntu.com\/ubuntu/g' /etc/apt/sources.list
+RUN apt update -y
+RUN apt dist-upgrade -y
+RUN apt install -y --no-install-recommends cmake lzip ca-certificates mtools build-essential dos2unix libboost-all-dev texinfo texi2html libxml2-dev subversion bison flex zlib1g-dev m4 git wget dosfstools curl
+
+RUN mkdir work
+WORKDIR /work
+
+FROM basebuilder as main
+
+LABEL Maintainer="Dean Netherton" \
+      Description="spike to build RomWBW"
+
+RUN mkdir /src
+WORKDIR /src/
+
+RUN apt install -y --no-install-recommends build-essential libncurses-dev srecord bsdmainutils
+
+RUN adduser --disabled-password --gecos "" builder
diff --git a/Makefile b/Makefile
index 6bf9e4a4..87fb9244 100644
--- a/Makefile
+++ b/Makefile
@@ -28,4 +28,4 @@ dist:
 	$(MAKE) --directory Source clean
 
 distlog:
-	$(MAKE) dist 2>&1 | tee make.log
+	time -p $(MAKE) dist 2>&1 | tee make.log
diff --git a/ReadMe.md b/ReadMe.md
index c91cec6d..3d49bb8b 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.5 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-03 May 2024
+08 Nov 2024
 
 # Overview
 
@@ -112,22 +112,20 @@ functionality.
 
 Complete instructions for installation and operation of RomWBW are found
 in the [RomWBW User
-Guide](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20User%20Guide.pdf).
+Guide](https://github.com/wwarthen/RomWBW/raw/master/Doc/RomWBW%20User%20Guide.pdf).
 
 ## Documentation
 
 Documentation for RomWBW includes:
 
 - [RomWBW User
-  Guide](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20User%20Guide.pdf)
+  Guide](https://github.com/wwarthen/RomWBW/raw/master/Doc/RomWBW%20User%20Guide.pdf)
 - [RomWBW System
-  Guide](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20System%20Guide.pdf)
+  Guide](https://github.com/wwarthen/RomWBW/raw/master/Doc/RomWBW%20System%20Guide.pdf)
 - [RomWBW
-  Applications](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20Applications.pdf)
-- [RomWBW ROM
-  Applications](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20ROM%20Applications.pdf)
+  Applications](https://github.com/wwarthen/RomWBW/raw/master/Doc/RomWBW%20Applications.pdf)
 - [RomWBW
-  Errata](https://github.com/wwarthen/RomWBW/raw/dev/Doc/RomWBW%20Errata.pdf)
+  Errata](https://github.com/wwarthen/RomWBW/raw/master/Doc/RomWBW%20Errata.pdf)
 
 # Acknowledgments
 
@@ -188,8 +186,8 @@ let me know if I missed you!
 
 - Tasty Basic is a product of Dimitri Theulings.
 
-- Dean Netherton contributed the sound driver interface and the SN76489
-  sound driver.
+- Dean Netherton contributed eZ80 CPU support, the sound driver
+  interface, and the SN76489 sound driver.
 
 - The RomWBW Disk Catalog document was produced by Mykl Orders.
 
@@ -198,7 +196,11 @@ let me know if I missed you!
   Microsoft Fortran Compiler, and a Games compendium.
 
 - Martin R has provided substantial help reviewing and improving the
-  User Guide.
+  User Guide and Applications documents.
+
+- Mark Pruden has also contributed a great deal of content to the Disk
+  Catalog, User Guide as well as contributing the disk image for the
+  Z3PLUS operating system, and the COPYSL utility.
 
 - Jacques Pelletier has contributed the DS1501 RTC driver code.
 
diff --git a/ReadMe.txt b/ReadMe.txt
index bb14f64f..86e19209 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-03 May 2024
+08 Nov 2024
 
 
 
@@ -122,7 +122,6 @@ Documentation for RomWBW includes:
 -   RomWBW User Guide
 -   RomWBW System Guide
 -   RomWBW Applications
--   RomWBW ROM Applications
 -   RomWBW Errata
 
 
@@ -188,8 +187,8 @@ let me know if I missed you!
 
 -   Tasty Basic is a product of Dimitri Theulings.
 
--   Dean Netherton contributed the sound driver interface and the
-    SN76489 sound driver.
+-   Dean Netherton contributed eZ80 CPU support, the sound driver
+    interface, and the SN76489 sound driver.
 
 -   The RomWBW Disk Catalog document was produced by Mykl Orders.
 
@@ -198,7 +197,11 @@ let me know if I missed you!
     BASIC Compiler, Microsoft Fortran Compiler, and a Games compendium.
 
 -   Martin R has provided substantial help reviewing and improving the
-    User Guide.
+    User Guide and Applications documents.
+
+-   Mark Pruden has also contributed a great deal of content to the Disk
+    Catalog, User Guide as well as contributing the disk image for the
+    Z3PLUS operating system, and the COPYSL utility.
 
 -   Jacques Pelletier has contributed the DS1501 RTC driver code.
 
diff --git a/Source/Apps/BBCBASIC/Build.cmd b/Source/Apps/BBCBASIC/Build.cmd
new file mode 100644
index 00000000..715a96e1
--- /dev/null
+++ b/Source/Apps/BBCBASIC/Build.cmd
@@ -0,0 +1,23 @@
+@echo off
+setlocal
+
+set TOOLS=..\..\..\Tools
+
+set PATH=%TOOLS%\zxcc;%PATH%
+
+set CPMDIR80=%TOOLS%/cpm/
+
+zxcc z80asm -dist/FM
+zxcc z80asm -main/FM
+zxcc z80asm -exec/FM
+zxcc z80asm -eval/FM
+zxcc z80asm -asmb/FM
+zxcc z80asm -cmos/FM
+zxcc z80asm -math/FM
+zxcc z80asm -hook/FM
+zxcc z80asm -data/FM
+
+zxcc slrnk -/v,/a:0100,dist,main,exec,eval,asmb,math,hook,cmos,/p:4B00,data,bbcbasic/n,/e
+
+copy /Y bbcbasic.com ..\..\..\Binary\Apps\ || exit /b
+copy /Y bbcbasic.txt ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/BBCBASIC/Clean.cmd b/Source/Apps/BBCBASIC/Clean.cmd
new file mode 100644
index 00000000..3de5bc26
--- /dev/null
+++ b/Source/Apps/BBCBASIC/Clean.cmd
@@ -0,0 +1,9 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.hex del *.hex
+if exist *.prn del *.prn
+if exist *.rel del *.rel
+if exist *.sym del *.sym
diff --git a/Source/Apps/BBCBASIC/Makefile b/Source/Apps/BBCBASIC/Makefile
new file mode 100644
index 00000000..57ffda4c
--- /dev/null
+++ b/Source/Apps/BBCBASIC/Makefile
@@ -0,0 +1,11 @@
+OBJECTS = bbcbasic.com
+DOCS = bbcbasic.txt
+DEST = ../../../Binary/Apps
+DOCDEST = ../../../Binary/Apps
+TOOLS = ../../../Tools
+OTHERS = *.rel
+
+include $(TOOLS)/Makefile.inc
+
+bbcbasic.com: dist.rel main.rel exec.rel eval.rel asmb.rel cmos.rel math.rel hook.rel data.rel
+	$(ZXCC) SLRNK -/V,/A:0100,DIST,MAIN,EXEC,EVAL,ASMB,MATH,HOOK,CMOS,/P:4B00,DATA,BBCBASIC/N,/E
diff --git a/Source/Apps/BBCBASIC/asmb.z80 b/Source/Apps/BBCBASIC/asmb.z80
new file mode 100644
index 00000000..f1a6951d
--- /dev/null
+++ b/Source/Apps/BBCBASIC/asmb.z80
@@ -0,0 +1,1010 @@
+	TITLE	BBC BASIC (C) R.T.RUSSELL 1981-2024
+	NAME	('ASMB')
+;
+;BBC BASIC INTERPRETER - Z80 VERSION
+;Z80 CPU ASSEMBLER MODULE - "ASMB"
+;(C) COPYRIGHT R.T.RUSSELL 1981-2024
+;
+;THE NAME BBC BASIC IS USED WITH THE PERMISSION
+;OF THE BRITISH BROADCASTING CORPORATION AND IS
+;NOT TRANSFERRABLE TO A FORKED OR DERIVED WORK.
+;
+;VERSION 5.0, 14-05-2024
+;
+	GLOBAL	ASSEM
+;
+	EXTRN	TABIT
+	EXTRN	CRLF
+	EXTRN	OUT
+	EXTRN	VAR
+	EXTRN	ZERO
+	EXTRN	STOREN
+	EXTRN	ERROR
+	EXTRN	EXPRI
+	EXTRN	EXPRS
+;
+	EXTRN	LISTON
+	EXTRN	COUNT
+	EXTRN	ACCS
+	EXTRN	OC
+	EXTRN	PC
+;
+CR	EQU	0DH
+TAND	EQU	80H
+TOR	EQU	84H
+TERROR	EQU	85H
+TCALL	EQU	0D6H
+TDEF	EQU	0DDH
+;
+;ASSEMBLER:
+;LANGUAGE-INDEPENDENT CONTROL SECTION:
+; Outputs: A=delimiter, carry set if syntax error.
+;
+ASSEM:	CALL	SKIP
+	INC	IY
+	CP	':'
+	JR	Z,ASSEM
+	CP	']'
+	RET	Z
+	CP	CR
+	RET	Z
+	DEC	IY
+	LD	IX,(PC)		;PROGRAM COUNTER
+	LD	HL,LISTON
+	BIT	6,(HL)
+	JR	Z,ASSEM0
+	LD	IX,(OC)		;ORIGIN of CODE
+ASSEM0:	PUSH	IX
+	PUSH	IY
+	CALL	ASMB
+	POP	BC
+	POP	DE
+	RET	C
+	CALL	SKIP
+	SCF
+	RET	NZ
+	DEC	IY
+ASSEM3:	INC	IY
+	LD	A,(IY)
+	CALL	TERM0
+	JR	NZ,ASSEM3
+	LD	A,(LISTON)
+	PUSH	IX
+	POP	HL
+	OR	A
+	SBC	HL,DE
+	EX	DE,HL		;DE= NO. OF BYTES
+	PUSH	HL
+	LD	HL,(PC)
+	PUSH	HL
+	ADD	HL,DE
+	LD	(PC),HL		;UPDATE PC
+	BIT	6,A
+	JR	Z,ASSEM5
+	LD	HL,(OC)
+	ADD	HL,DE
+	LD	(OC),HL		;UPDATE OC
+ASSEM5:	POP	HL		;OLD PC
+	POP	IX		;CODE HERE
+	BIT	4,A
+	JR	Z,ASSEM
+	LD	A,H
+	CALL	HEX
+	LD	A,L
+	CALL	HEXSP
+	XOR	A
+	CP	E
+	JR	Z,ASSEM2
+ASSEM1:	LD	A,(COUNT)
+	CP	17
+	LD	A,5
+	CALL	NC,TABIT	;NEXT LINE
+	LD	A,(IX)
+	CALL	HEXSP
+	INC	IX
+	DEC	E
+	JR	NZ,ASSEM1
+ASSEM2:	LD	A,18
+	CALL	TABIT
+	PUSH	IY
+	POP	HL
+	SBC	HL,BC
+ASSEM4:	LD	A,(BC)
+	CALL	OUT
+	INC	BC
+	DEC	L
+	JR	NZ,ASSEM4
+	CALL	CRLF
+	JP	ASSEM
+;
+HEXSP:	CALL	HEX
+	LD	A,' '
+	JR	OUTCH1
+HEX:	PUSH	AF
+	RRCA
+	RRCA
+	RRCA
+	RRCA
+	CALL	HEXOUT
+	POP	AF
+HEXOUT:	AND	0FH
+	ADD	A,90H
+	DAA
+	ADC	A,40H
+	DAA
+OUTCH1:	JP	OUT
+;
+;PROCESSOR-SPECIFIC TRANSLATION SECTION:
+;
+;REGISTER USAGE: B - TYPE OF MOST RECENT OPERAND
+;                C - OPCODE BEING BUILT
+;                D - (IX) OR (IY) FLAG
+;                E - OFFSET FROM IX OR IY
+;               HL - NUMERIC OPERAND VALUE
+;               IX - CODE DESTINATION
+;               IY - SOURCE TEXT POINTER
+;   Inputs: A = initial character
+;  Outputs: Carry set if syntax error.
+;
+ASMB:	CP	'.'
+	JR	NZ,ASMB1
+	INC	IY
+	PUSH	IX
+	CALL	VAR
+	PUSH	AF
+	CALL	ZERO
+	EXX
+	LD	HL,(PC)
+	EXX
+	LD	A,(LISTON)
+	AND	20H
+	JR	NZ,ASMB0
+	LD	A,(IX)
+	OR	(IX+1)
+	LD	A,3
+	JP	NZ,ERROR	;Multiple label
+ASMB0:	POP	AF
+	CALL	STOREN
+	POP	IX
+ASMB1:	CALL	SKIP
+	RET	Z
+	CP	TCALL
+	LD	C,0C4H
+	INC	IY
+	JP	Z,GRPC
+	DEC	IY
+	LD	HL,OPCODS
+	CALL	FIND
+	RET	C
+	LD	C,B	;ROOT OPCODE
+	LD	D,0	;CLEAR IX/IY FLAG
+;
+;GROUP 0 - TRIVIAL CASES REQUIRING NO COMPUTATION
+;GROUP 1 - AS GROUP 0 BUT WITH "ED" PREFIX
+;
+	SUB	39
+	JR	NC,GROUP2
+	CP	15-39
+	CALL	NC,ED
+	JR	BYTE0
+;
+;GROUP 2 - BIT, RES, SET
+;GROUP 3 - RLC, RRC, RL, RR, SLA, SRA, SRL
+;
+GROUP2:	SUB	10
+	JR	NC,GROUP4
+	CP	3-10
+	CALL	C,BIT
+	RET	C
+	CALL	REGLO
+	RET	C
+	CALL	CB
+	JR	BYTE0
+;
+;GROUP 4 - PUSH, POP, EX (SP)
+;
+GROUP4:	SUB	3
+	JR	NC,GROUP5
+G4:	CALL	PAIR
+	RET	C
+	JR	BYTE0
+;
+;GROUP 5 - SUB, AND, XOR, OR, CP
+;GROUP 6 - ADD, ADC, SBC
+;
+GROUP5:	SUB	8+2
+	JR	NC,GROUP7
+	CP	5-8
+	LD	B,7
+	CALL	NC,OPND
+	LD	A,B
+	CP	7
+	JR	NZ,G6HL
+G6:	CALL	REGLO
+	LD	A,C
+	JR	NC,BIND1
+	XOR	46H
+	CALL	BIND
+DB:	CALL	NUMBER
+	JR	VAL8
+;
+G6HL:	AND	3FH
+	CP	12
+	SCF
+	RET	NZ
+	LD	A,C
+	CP	80H
+	LD	C,9
+	JR	Z,G4
+	XOR	1CH
+	RRCA
+	LD	C,A
+	CALL	ED
+	JR	G4
+;
+;GROUP 7 - INC, DEC
+;
+GROUP7:	SUB	2
+	JR	NC,GROUP8
+	CALL	REGHI
+	LD	A,C
+BIND1:	JP	NC,BIND
+	XOR	64H
+	RLCA
+	RLCA
+	RLCA
+	LD	C,A
+	CALL	PAIR1
+	RET	C
+BYTE0:	LD	A,C
+	JR	BYTE2
+;
+;GROUP 8 - IN
+;GROUP 9 - OUT
+;
+GROUP8:	SUB	2
+	JR	NC,GROUPA
+	CP	1-2
+	CALL	Z,CORN
+	EX	AF,AF'
+	CALL	REGHI
+	RET	C
+	EX	AF,AF'
+	CALL	C,CORN
+	INC	H
+	JR	Z,BYTE0
+	LD	A,B
+	CP	7
+	SCF
+	RET	NZ
+	LD	A,C
+	XOR	3
+	RLCA
+	RLCA
+	RLCA
+	CALL	BYTE
+	JR	VAL8
+;
+;GROUP 10 - JR, DJNZ
+;
+GROUPA:	SUB	2
+	JR	NC,GROUPB
+	CP	1-2
+	CALL	NZ,COND
+	LD	A,C
+	JR	NC,GRPA
+	LD	A,18H
+GRPA:	CALL	BYTE
+	CALL	NUMBER
+	LD	DE,(PC)
+	INC	DE
+	SCF
+	SBC	HL,DE
+	LD	A,L
+	RLA
+	SBC	A,A
+	CP	H
+TOOFAR:	LD	A,1
+	JP	NZ,ERROR	;"Out of range"
+VAL8:	LD	A,L
+	JR	BYTE2
+;
+;GROUP 11 - JP
+;
+GROUPB:	LD	B,A
+	JR	NZ,GROUPC
+	CALL	COND
+	LD	A,C
+	JR	NC,GRPB
+	LD	A,B
+	AND	3FH
+	CP	6
+	LD	A,0E9H
+	JR	Z,BYTE2
+	LD	A,0C3H
+GRPB:	CALL	BYTE
+	JR	ADDR
+;
+;GROUP 12 - CALL
+;
+GROUPC:	DJNZ	GROUPD
+GRPC:	CALL	GRPE
+ADDR:	CALL	NUMBER
+VAL16:	CALL	VAL8
+	LD	A,H
+	JR	BYTE2
+;
+;GROUP 13 - RST
+;
+GROUPD:	DJNZ	GROUPE
+	CALL	NUMBER
+	AND	C
+	OR	H
+	JR	NZ,TOOFAR
+	LD	A,L
+	OR	C
+BYTE2:	JR	BYTE1
+;
+;GROUP 14 - RET
+;
+GROUPE:	DJNZ	GROUPF
+GRPE:	CALL	COND
+	LD	A,C
+	JR	NC,BYTE1
+	OR	9
+	JR	BYTE1
+;
+;GROUP 15 - LD
+;
+GROUPF:	DJNZ	MISC
+	CALL	LDOP
+	JR	NC,LDA
+	CALL	REGHI
+	EX	AF,AF'
+	CALL	SKIP
+	CP	'('
+	JR	Z,LDIN
+	EX	AF,AF'
+	JP	NC,G6
+	LD	C,1
+	CALL	PAIR1
+	RET	C
+	LD	A,14
+	CP	B
+	LD	B,A
+	CALL	Z,PAIR
+	LD	A,B
+	AND	3FH
+	CP	12
+	LD	A,C
+	JR	NZ,GRPB
+	LD	A,0F9H
+	JR	BYTE1
+;
+LDIN:	EX	AF,AF'
+	PUSH	BC
+	CALL	NC,REGLO
+	LD	A,C
+	POP	BC
+	JR	NC,BIND
+	LD	C,0AH
+	CALL	PAIR1
+	CALL	LD16
+	JR	NC,GRPB
+	CALL	NUMBER
+	LD	C,2
+	CALL	PAIR
+	CALL	LD16
+	RET	C
+	CALL	BYTE
+	JR	VAL16
+;
+;OPT - SET OPTION
+;
+OPT:	DEC	B
+	JP	Z,DB
+	DJNZ	ADDR
+	CALL	NUMBER
+	LD	HL,LISTON
+	LD	C,A
+	RLD
+	LD	A,C
+	RRD
+	RET
+;
+LDA:	CP	4
+	CALL	C,ED
+	LD	A,B
+BYTE1:	JR	BYTE
+;
+;MISC - DEFB, DEFW, DEFM
+;
+MISC:	DJNZ	OPT
+	PUSH	IX
+	CALL	EXPRS
+	POP	IX
+	LD	HL,ACCS
+DEFM1:	XOR	A
+	CP	E
+	RET	Z
+	LD	A,(HL)
+	INC	HL
+	CALL	BYTE
+	DEC	E
+	JR	DEFM1
+;
+;SUBROUTINES:
+;
+LD16:	LD	A,B
+	JR	C,LD8
+	LD	A,B
+	AND	3FH
+	CP	12
+	LD	A,C
+	RET	Z
+	CALL	ED
+	LD	A,C
+	OR	43H
+	RET
+;
+LD8:	CP	7
+	SCF
+	RET	NZ
+	LD	A,C
+	OR	30H
+	RET
+;
+CORN:	PUSH	BC
+	CALL	OPND
+	BIT	5,B
+	POP	BC
+	JR	Z,NUMBER
+	LD	H,-1
+ED:	LD	A,0EDH
+	JR	BYTE
+;
+CB:	LD	A,0CBH
+BIND:	CP	76H
+	SCF
+	RET	Z		;REJECT LD (HL),(HL)
+	CALL	BYTE
+	INC	D
+	RET	P
+	LD	A,E
+	JR	BYTE
+;
+OPND:	PUSH	HL
+	LD	HL,OPRNDS
+	CALL	FIND
+	POP	HL
+	RET	C
+	BIT	7,B
+	RET	Z
+	BIT	3,B
+	PUSH	HL
+	CALL	Z,OFFSET
+	LD	E,L
+	POP	HL
+	LD	A,0DDH
+	BIT	6,B
+	JR	Z,OP1
+	LD	A,0FDH
+OP1:	OR	A
+	INC	D
+	LD	D,A
+	RET	M
+BYTE:	LD	(IX),A
+	INC	IX
+	OR	A
+	RET
+;
+OFFSET:	LD	A,(IY)
+	CP	')'
+	LD	HL,0
+	RET	Z
+NUMBER:	CALL	SKIP
+	PUSH	BC
+	PUSH	DE
+	PUSH	IX
+	CALL	EXPRI
+	POP	IX
+	EXX
+	POP	DE
+	POP	BC
+	LD	A,L
+	OR	A
+	RET
+;
+REG:	CALL	OPND
+	RET	C
+	LD	A,B
+	AND	3FH
+	CP	8
+	CCF
+	RET
+;
+REGLO:	CALL	REG
+	RET	C
+	JR	ORC
+;
+REGHI:	CALL	REG
+	RET	C
+	JR	SHL3
+;
+COND:	CALL	OPND
+	RET	C
+	LD	A,B
+	AND	1FH
+	SUB	16
+	JR	NC,SHL3
+	CP	-15
+	SCF
+	RET	NZ
+	LD	A,3
+	JR	SHL3
+;
+PAIR:	CALL	OPND
+	RET	C
+PAIR1:	LD	A,B
+	AND	0FH
+	SUB	8
+	RET	C
+	JR	SHL3
+;
+BIT:	CALL	NUMBER
+	CP	8
+	CCF
+	RET	C
+SHL3:	RLCA
+	RLCA
+	RLCA
+ORC:	OR	C
+	LD	C,A
+	RET
+;
+LDOP:	LD	HL,LDOPS
+FIND:	CALL	SKIP
+EXIT:	LD	B,0
+	SCF
+	RET	Z
+	CP	TDEF
+	JR	Z,FIND0
+	CP	TOR+1
+	CCF
+	RET	C
+FIND0:	LD	A,(HL)
+	OR	A
+	JR	Z,EXIT
+	XOR	(IY)
+	AND	01011111B
+	JR	Z,FIND2
+FIND1:	BIT	7,(HL)
+	INC	HL
+	JR	Z,FIND1
+	INC	HL
+	INC	B
+	JR	FIND0
+;
+FIND2:	PUSH	IY
+FIND3:	BIT	7,(HL)
+	INC	IY
+	INC	HL
+	JR	NZ,FIND5
+	CP	(HL)
+	CALL	Z,SKIP0
+	LD	A,(HL)
+	XOR	(IY)
+	AND	01011111B
+	JR	Z,FIND3
+FIND4:	POP	IY
+	JR	FIND1
+;
+FIND5:	CALL	DELIM
+	CALL	NZ,SIGN
+	JR	NZ,FIND4
+FIND6:	LD	A,B
+	LD	B,(HL)
+	POP	HL
+	RET
+;
+SKIP0:	INC	HL
+SKIP:	CALL	DELIM
+	RET	NZ
+	CALL	TERM
+	RET	Z
+	INC	IY
+	JR	SKIP
+;
+SIGN:	CP	'+'
+	RET	Z
+	CP	'-'
+	RET
+;
+DELIM:	LD	A,(IY)		;ASSEMBLER DELIMITER
+	CP	' '
+	RET	Z
+	CP	','
+	RET	Z
+	CP	')'
+	RET	Z
+TERM:	CP	';'		;ASSEMBLER TERMINATOR
+	RET	Z
+	CP	'\'
+	RET	Z
+TERM0:	CP	':'		;ASSEMBLER SEPARATOR
+	RET	NC
+	CP	CR
+	RET
+;
+OPCODS:	DEFM	'NO'
+	DEFB	'P'+80H
+	DEFB	0
+	DEFM	'RLC'
+	DEFB	'A'+80H
+	DEFB	7
+	DEFM	'EX'
+	DEFB	0
+	DEFM	'AF'
+	DEFB	0
+	DEFM	'AF'
+	DEFB	''''+80H
+	DEFB	8
+	DEFM	'RRC'
+	DEFB	'A'+80H
+	DEFB	0FH
+	DEFM	'RL'
+	DEFB	'A'+80H
+	DEFB	17H
+	DEFM	'RR'
+	DEFB	'A'+80H
+	DEFB	1FH
+	DEFM	'DA'
+	DEFB	'A'+80H
+	DEFB	27H
+	DEFM	'CP'
+	DEFB	'L'+80H
+	DEFB	2FH
+	DEFM	'SC'
+	DEFB	'F'+80H
+	DEFB	37H
+	DEFM	'CC'
+	DEFB	'F'+80H
+	DEFB	3FH
+	DEFM	'HAL'
+	DEFB	'T'+80H
+	DEFB	76H
+	DEFM	'EX'
+	DEFB	'X'+80H
+	DEFB	0D9H
+	DEFM	'EX'
+	DEFB	0
+	DEFM	'DE'
+	DEFB	0
+	DEFM	'H'
+	DEFB	'L'+80H
+	DEFB	0EBH
+	DEFM	'D'
+	DEFB	'I'+80H
+	DEFB	0F3H
+	DEFM	'E'
+	DEFB	'I'+80H
+	DEFB	0FBH
+;
+	DEFM	'NE'
+	DEFB	'G'+80H
+	DEFB	44H
+	DEFM	'IM'
+	DEFB	0
+	DEFB	'0'+80H
+	DEFB	46H
+	DEFM	'RET'
+	DEFB	'N'+80H
+	DEFB	45H
+	DEFM	'RET'
+	DEFB	'I'+80H
+	DEFB	4DH
+	DEFM	'IM'
+	DEFB	0
+	DEFB	'1'+80H
+	DEFB	56H
+	DEFM	'IM'
+	DEFB	0
+	DEFB	'2'+80H
+	DEFB	5EH
+	DEFM	'RR'
+	DEFB	'D'+80H
+	DEFB	67H
+	DEFM	'RL'
+	DEFB	'D'+80H
+	DEFB	6FH
+	DEFM	'LD'
+	DEFB	'I'+80H
+	DEFB	0A0H
+	DEFM	'CP'
+	DEFB	'I'+80H
+	DEFB	0A1H
+	DEFM	'IN'
+	DEFB	'I'+80H
+	DEFB	0A2H
+	DEFM	'OUT'
+	DEFB	'I'+80H
+	DEFB	0A3H
+	DEFM	'LD'
+	DEFB	'D'+80H
+	DEFB	0A8H
+	DEFM	'CP'
+	DEFB	'D'+80H
+	DEFB	0A9H
+	DEFM	'IN'
+	DEFB	'D'+80H
+	DEFB	0AAH
+	DEFM	'OUT'
+	DEFB	'D'+80H
+	DEFB	0ABH
+	DEFM	'LDI'
+	DEFB	'R'+80H
+	DEFB	0B0H
+	DEFM	'CPI'
+	DEFB	'R'+80H
+	DEFB	0B1H
+	DEFM	'INI'
+	DEFB	'R'+80H
+	DEFB	0B2H
+	DEFM	'OTI'
+	DEFB	'R'+80H
+	DEFB	0B3H
+	DEFM	'LDD'
+	DEFB	'R'+80H
+	DEFB	0B8H
+	DEFM	'CPD'
+	DEFB	'R'+80H
+	DEFB	0B9H
+	DEFM	'IND'
+	DEFB	'R'+80H
+	DEFB	0BAH
+	DEFM	'OTD'
+	DEFB	'R'+80H
+	DEFB	0BBH
+;
+	DEFM	'BI'
+	DEFB	'T'+80H
+	DEFB	40H
+	DEFM	'RE'
+	DEFB	'S'+80H
+	DEFB	80H
+	DEFM	'SE'
+	DEFB	'T'+80H
+	DEFB	0C0H
+;
+	DEFM	'RL'
+	DEFB	'C'+80H
+	DEFB	0
+	DEFM	'RR'
+	DEFB	'C'+80H
+	DEFB	8
+	DEFM	'R'
+	DEFB	'L'+80H
+	DEFB	10H
+	DEFM	'R'
+	DEFB	'R'+80H
+	DEFB	18H
+	DEFM	'SL'
+	DEFB	'A'+80H
+	DEFB	20H
+	DEFM	'SR'
+	DEFB	'A'+80H
+	DEFB	28H
+	DEFM	'SR'
+	DEFB	'L'+80H
+	DEFB	38H
+;
+	DEFM	'PO'
+	DEFB	'P'+80H
+	DEFB	0C1H
+	DEFM	'PUS'
+	DEFB	'H'+80H
+	DEFB	0C5H
+	DEFM	'EX'
+	DEFB	0
+	DEFM	'(S'
+	DEFB	'P'+80H
+	DEFB	0E3H
+;
+	DEFM	'SU'
+	DEFB	'B'+80H
+	DEFB	90H
+	DEFM	'AN'
+	DEFB	'D'+80H
+	DEFB	0A0H
+	DEFM	'XO'
+	DEFB	'R'+80H
+	DEFB	0A8H
+	DEFM	'O'
+	DEFB	'R'+80H
+	DEFB	0B0H
+	DEFM	'C'
+	DEFB	'P'+80H
+	DEFB	0B8H
+	DEFB	TAND
+	DEFB	0A0H
+	DEFB	TOR
+	DEFB	0B0H
+;
+	DEFM	'AD'
+	DEFB	'D'+80H
+	DEFB	80H
+	DEFM	'AD'
+	DEFB	'C'+80H
+	DEFB	88H
+	DEFM	'SB'
+	DEFB	'C'+80H
+	DEFB	98H
+;
+	DEFM	'IN'
+	DEFB	'C'+80H
+	DEFB	4
+	DEFM	'DE'
+	DEFB	'C'+80H
+	DEFB	5
+;
+	DEFM	'I'
+	DEFB	'N'+80H
+	DEFB	40H
+	DEFM	'OU'
+	DEFB	'T'+80H
+	DEFB	41H
+;
+	DEFM	'J'
+	DEFB	'R'+80H
+	DEFB	20H
+	DEFM	'DJN'
+	DEFB	'Z'+80H
+	DEFB	10H
+;
+	DEFM	'J'
+	DEFB	'P'+80H
+	DEFB	0C2H
+;
+	DEFM	'CAL'
+	DEFB	'L'+80H
+	DEFB	0C4H
+;
+	DEFM	'RS'
+	DEFB	'T'+80H
+	DEFB	0C7H
+;
+	DEFM	'RE'
+	DEFB	'T'+80H
+	DEFB	0C0H
+;
+	DEFM	'L'
+	DEFB	'D'+80H
+	DEFB	40H
+;
+	DEFB	TDEF AND 7FH
+	DEFB	'M'+80H
+	DEFB	0
+;
+	DEFB	TDEF AND 7FH
+	DEFB	'B'+80H
+	DEFB	0
+;
+	DEFM	'OP'
+	DEFB	'T'+80H
+	DEFB	0
+;
+	DEFB	TDEF AND 7FH
+	DEFB	'W'+80H
+	DEFB	0
+;
+	DEFB	0
+;
+OPRNDS:	DEFB	'B'+80H
+	DEFB	0
+	DEFB	'C'+80H
+	DEFB	1
+	DEFB	'D'+80H
+	DEFB	2
+	DEFB	'E'+80H
+	DEFB	3
+	DEFB	'H'+80H
+	DEFB	4
+	DEFB	'L'+80H
+	DEFB	5
+	DEFM	'(H'
+	DEFB	'L'+80H
+	DEFB	6
+	DEFB	'A'+80H
+	DEFB	7
+	DEFM	'(I'
+	DEFB	'X'+80H
+	DEFB	86H
+	DEFM	'(I'
+	DEFB	'Y'+80H
+	DEFB	0C6H
+;
+	DEFM	'B'
+	DEFB	'C'+80H
+	DEFB	8
+	DEFM	'D'
+	DEFB	'E'+80H
+	DEFB	10
+	DEFM	'H'
+	DEFB	'L'+80H
+	DEFB	12
+	DEFM	'I'
+	DEFB	'X'+80H
+	DEFB	8CH
+	DEFM	'I'
+	DEFB	'Y'+80H
+	DEFB	0CCH
+	DEFM	'A'
+	DEFB	'F'+80H
+	DEFB	14
+	DEFM	'S'
+	DEFB	'P'+80H
+	DEFB	14
+;
+	DEFM	'N'
+	DEFB	'Z'+80H
+	DEFB	16
+	DEFB	'Z'+80H
+	DEFB	17
+	DEFM	'N'
+	DEFB	'C'+80H
+	DEFB	18
+	DEFM	'P'
+	DEFB	'O'+80H
+	DEFB	20
+	DEFM	'P'
+	DEFB	'E'+80H
+	DEFB	21
+	DEFB	'P'+80H
+	DEFB	22
+	DEFB	'M'+80H
+	DEFB	23
+;
+	DEFM	'('
+	DEFB	'C'+80H
+	DEFB	20H
+;
+	DEFB	0
+;
+LDOPS:	DEFM	'I'
+	DEFB	0
+	DEFB	'A'+80H
+	DEFB	47H
+	DEFM	'R'
+	DEFB	0
+	DEFB	'A'+80H
+	DEFB	4FH
+	DEFM	'A'
+	DEFB	0
+	DEFB	'I'+80H
+	DEFB	57H
+	DEFM	'A'
+	DEFB	0
+	DEFB	'R'+80H
+	DEFB	5FH
+	DEFM	'(BC'
+	DEFB	0
+	DEFB	'A'+80H
+	DEFB	2
+	DEFM	'(DE'
+	DEFB	0
+	DEFB	'A'+80H
+	DEFB	12H
+	DEFM	'A'
+	DEFB	0
+	DEFM	'(B'
+	DEFB	'C'+80H
+	DEFB	0AH
+	DEFM	'A'
+	DEFB	0
+	DEFM	'(D'
+	DEFB	'E'+80H
+	DEFB	1AH
+;
+	DEFB	0
+;
+FIN:	END
diff --git a/Source/Apps/BBCBASIC/bbcbasic.txt b/Source/Apps/BBCBASIC/bbcbasic.txt
new file mode 100644
index 00000000..0fa96f2e
--- /dev/null
+++ b/Source/Apps/BBCBASIC/bbcbasic.txt
@@ -0,0 +1,455 @@
+This is a RomWBW HBIOS adaptation of BBCBASIC v5.00.  The
+cursor and screen management assumes the use of an ANSI/VT-100 terminal
+which is generally correct for RomWBW.  Support for a hardware system
+timer is also implemented.  If your system does not have a hardware
+timer, the TIME function will always return 0 and the timeout
+parameter of the INKEY(n) function will not be observed (will never
+timeout).
+
+What follows is some basic information on BBCBASIC from the
+distribution.  Note that it starts with the v3.00 information and
+later on provides information on the changes in v5.00.
+
+-- WBW 1:15 PM 5/30/2024
+
+
+
+
+                              BBC BASIC (Z80)
+
+                         Generic CP/M Version 3.00
+
+                    (C) Copyright R.T.Russell 1982-1999
+
+1. INTRODUCTION
+
+   BBC  BASIC (Z80) has been designed to be as compatible as  possible  with 
+   Version 4 of the 6502 BBC BASIC resident in the BBC Micro Master  series.  
+   The language syntax is not always identical to that of the 6502  version, 
+   but in most cases the Z80 version is more tolerant.
+
+   BBC  BASIC (Z80) is as machine independent as possible and, as  supplied, 
+   it  will  run  on any CP/M 2.2 (or later) system using  a  Z80  processor 
+   (checks  are carried out to ensure that the processor is a Z80  and  that 
+   the version of CP/M is at least 2.2).  It is minimally configured for  an 
+   ADM3a-compatible VDU.
+
+   Few  CP/M  systems  offer  colour graphics of  the  quality  provided  as 
+   standard  on  the BBC Microcomputer, and no software can  provide  colour 
+   high-resolution graphics from a monochrome character-orientated computer.  
+   However,  many CP/M system users are interested in the  advanced  program 
+   structures  available from BBC BASIC and, within the limitations  of  the 
+   host  computer, BBC BASIC (Z80) provides the programming  structures  and 
+   the non-graphic commands and functions specified for BBC BASIC.
+
+   In order to make full use of the facilities available in BBC BASIC  (Z80) 
+   it is necessary to install a small patch to adapt it to the  capabilities 
+   of  the  host  computer.  The source code of the  patch  present  in  the 
+   distribution version is supplied as BBCDIST.MAC.
+
+   This  documentation  should be read in conjunction with  a  standard  BBC 
+   BASIC  manual.  Only those features which differ from the standard  Acorn 
+   versions are documented here.
+
+
+2. MEMORY UTILISATION
+
+   BBC  BASIC (Z80) requires about 16 Kbytes of code space, resulting  in  a 
+   value  of  PAGE  of about &3E00.  The remainder of  the  user  memory  is 
+   available  for BASIC programs, variables (heap) and stack.  Depending  on 
+   the system configuration, HIMEM can have a value up to &FE00.
+
+
+3. COMMANDS, STATEMENTS AND FUNCTIONS
+
+   The syntax of BASIC commands,  statements and functions is in most  cases 
+   identical  to  that  of  the  BBC  Micro  version  (BASIC  4).   The  few 
+   differences are documented here:
+
+   ADVAL
+   This function is not implemented.
+
+   CALL
+   CALL  sets  up a table in RAM containing details of the  parameters;  the 
+   processor's  IX register is set to the address of this  parameter  table.  
+   The other processor registers are initialised as follows:
+
+               A is initialised to the least significant byte of A%
+               B is initialised to the least significant byte of B%
+               C is initialised to the least significant byte of C%
+               D is initialised to the least significant byte of D%
+               E is initialised to the least significant byte of E%
+               F is initialised to the least significant byte of F%
+               H is initialised to the least significant byte of H%
+               L is initialised to the least significant byte of L%
+
+   The parameter types are:
+
+          Code No.       Parameter Type      Example
+              0          Byte (8 bits)       ?A%
+              4          Word (32 bits)      !A% or A%
+              5          Real (40 bits)      A
+            128          Fixed string        $A%
+            129          Movable string      A$
+
+   On  entry  to the subroutine the parameter table contains  the  following 
+   values:
+
+          Number of parameters     1 byte (at IX)
+
+          Parameter type           1 byte (at IX+1)
+          Parameter address        2 bytes (at IX+2, IX+3, LSB first)
+
+          Parameter type           ) repeated as often as necessary
+          Parameter address        )
+
+   Except  in  the case of a movable string (normal  string  variable),  the 
+   parameter  address  given is the absolute address at which  the  item  is 
+   stored.  In the case of movable strings (type 129) it is the address of a 
+   4-byte parameter block containing the current length, the maximum  length 
+   and the start address of the string (LSB first) in that order.
+
+   Integer  variables  are stored in twos complement form with  their  least 
+   significant byte first.
+
+   Fixed  strings are stored as the characters of the string followed  by  a 
+   carriage return (&0D).
+
+   Floating point variables are stored in binary floating point format  with 
+   their least significant byte first; the fifth byte is the exponent.   The 
+   mantissa  is  stored as a binary fraction in sign and  magnitude  format.  
+   Bit 7 of the most significant byte is the sign bit and, for the  purposes 
+   of calculating the magnitude of the number, this bit is assumed to be set 
+   to  one.  The exponent is stored as an integer in excess 127  format  (to 
+   find the exponent subtract 127 from the value in the fifth byte).
+
+   If the exponent byte of a floating point number is zero, the number is an 
+   integer stored in integer format in the mantissa bytes.  Thus an  integer 
+   can be represented in two different ways in a real variable.  For example 
+   the value +5 can be stored as:
+
+            05 00 00 00 00         Integer 5
+            00 00 00 20 82         (0.5 + 0.125) * 2^3
+
+   COLOUR (COLOR)
+   This statement is not implemented.
+
+   DRAW
+   This statement is not implemented.
+
+   EDIT
+   A command to edit or concatenate and edit the specified program  line(s).  
+   The specified lines (including their line numbers) are listed as a single 
+   line.   By changing only the line number you can use EDIT to duplicate  a 
+   line.
+
+     EDIT 230
+     EDIT 200,230
+
+   The  following control functions are active both in the EDIT mode and  in 
+   the immediate entry mode (i.e. at the BASIC prompt):
+
+     Move the cursor one character position to the left
+     Move the cursor one character position to the right
+     Move the cursor to the start of the line
+     Move the cursor to the end of the line
+     Insert a space at the current cursor position
+     Delete the character at the current cursor position
+     Backspace and delete the character to the left of the cursor
+     Delete all characters to the left of the cursor
+     Delete all characters from the cursor to the end of the line
+
+   The choice of which keys activate these functions is made when BBC  BASIC 
+   is configured for a particular system.  The distribution version uses ^H, 
+   ^I, ^K, ^J, ^A, ^E, DEL (&7F), ^L and ^X.
+
+   To exit EDIT mode and replace the edited line, type RETURN (ENTER).
+
+   To abort the edit and leave the line unchanged, type ESCape.
+
+   ENVELOPE
+   This statement is not implemented.
+
+   GET
+   This  function  waits for a character to be typed at  the  keyboard,  and 
+   returns the ASCII code.
+
+   GET can also be used to read data from a processor I/O port; full  16-bit 
+   port addressing is available:
+
+          N% = GET(X%) : REM input from port X%
+
+   INKEY
+   This function waits for a specified maximum number of centiseconds for  a 
+   character to be typed at the keyboard.  If no character is typed in  that 
+   time, the value -1 is returned.  In the distribution version the delay is 
+   determined by a simple software timing loop, and may be very  inaccurate.  
+   The customisation patch allows this to be adjusted to suit the system  in 
+   use.
+
+   INPUT#
+   The format of data files is different from that used by the BBC Micro, in 
+   part  to improve compatibility with standard CP/M files.  Numeric  values 
+   are  stored  as five bytes in the format documented under  CALL;  if  the 
+   fifth  byte is zero the value is an integer.  Strings are stored  as  the 
+   characters  of the string (in the correct order!) followed by a  carriage 
+   return (&0D).
+
+   MODE
+   This statement is not implemented.
+
+   MOVE
+   This statement is not implemented.
+
+   PLOT
+   This statement is not implemented.
+
+   POINT
+   This function is not implemented.
+
+   PRINT#
+   The format of data files is different from that used by the BBC Micro, in 
+   part  to improve compatibility with standard CP/M files.  Numeric  values 
+   are  stored  as five bytes in the format documented under  CALL;  if  the 
+   fifth  byte is zero the value is an integer.  Strings are stored  as  the 
+   characters  of the string (in the correct order!) followed by a  carriage 
+   return (&0D).
+
+   PUT
+   A  statement to output data to a processor port.  Full 16-bit  addressing 
+   is available.
+
+          PUT A%,N% : REM Output N% to port A%
+
+   SOUND
+   This statement is not implemented.
+
+   TIME
+   This pseudo-variable is not implemented in the distribution version,  but 
+   can be supported by means of the customisation patch.  See BBCDIST.MAC.
+
+   USR
+   As with CALL, the processor's registers are initialised as follows:
+
+               A is initialised to the least significant byte of A%
+               B is initialised to the least significant byte of B%
+               C is initialised to the least significant byte of C%
+               D is initialised to the least significant byte of D%
+               E is initialised to the least significant byte of E%
+               F is initialised to the least significant byte of F%
+               H is initialised to the least significant byte of H%
+               L is initialised to the least significant byte of L%
+
+   USR returns a 32-bit integer result composed of the processor's H, L,  H' 
+   and L' registers, with H being the most significant.
+
+
+4. RESIDENT Z80 ASSEMBLER
+
+   The  in-line  assembler is accessed in exactly the same way as  the  6502 
+   assembler  in  the BBC Micro version of BBC BASIC.  That is,  '['  enters 
+   assembler mode and ']' exits assembler mode.
+
+   All  standard  Zilog  mnemonics are accepted: ADD, ADC and  SBC  must  be 
+   followed by A or HL.  For example, ADD A,C is accepted but ADD C is  not.  
+   However, the brackets around the port number in IN and OUT are  optional.  
+   Thus  both OUT (5),A and OUT 5,A are accepted.  The instruction IN  F,(C) 
+   is not accepted, but the equivalent code is produced from IN (HL),C
+
+   The pseudo-ops DEFB, DEFW and DEFM are included.  DEFM works like EQUS in 
+   the 6502 version.
+
+
+5. OPERATING SYSTEM INTERFACE
+
+   The   following   resident  Operating  System   ("star")   commands   are 
+   implemented.  They may be accessed directly (e.g. *BYE) or via the  OSCLI 
+   statement (OSCLI "BYE").
+
+   Control characters, lower-case characters, DEL and quotation marks may be 
+   incorporated in filenames by using the 'escape' character '|'.   However, 
+   there is no equivalent to the BBC Microcomputer's '|!' to set bit 7.
+
+   *BYE
+   Returns control to the operating system (CP/M).
+
+   *CPM
+   Same as *BYE.
+
+   *. [filespec]
+   *DIR [filespec]
+   List  the  files which match the (optional) ambiguous  filespec.  If  the 
+   filespec is omitted, all .BBC files are listed:
+               *DIR           List all .BBC files on the disk
+               *DIR B:*.*     List all files on disk B:
+               *.*.*          List all files on the current disk
+
+   *DRIVE d:
+   Select drive d as the default drive for subsequent disk operations.
+
+   *ERA filespec
+   Erase (delete) the specified disk file or files.  The extension  defaults 
+   to .BBC if omitted.
+
+   *ESC [ON|OFF]
+   *ESC OFF disables the abort action of the ESCape key; after *ESC OFF  the 
+   ESCape  key  simply returns the ASCII code ESC (27).  *ESC ON,  or  *ESC, 
+   restores the normal action of the ESCape key.
+
+   *EXEC filespec
+   Accept  console  input  from  the  specified file  instead  of  from  the 
+   keyboard. If the extension is omitted, .BBC is assumed.
+
+   *LOAD filespec aaaa
+   Loads  the specified file into memory at address aaaa. The  load  address 
+   must be specified. If the extension is omitted, .BBC is assumed.
+
+   *OPT [n]
+   Select  the destination for console output characters.  The value n is in 
+   the range 0 to 2, as follows:
+               
+          0    Send characters to the console output
+          1    Send characters to the auxiliary output
+          2    Send characters to the printer (list) output
+
+   *REN newfile=oldfile
+   *RENAME newfile=oldfile
+   Renames  'oldfile'  as 'newfile'.  If the extension is omitted,  .BBC  is 
+   assumed.
+
+   *RESET
+   Rest the disk system (CP/M function 13).  This command does not close any 
+   files  nor does it perform any other housekeeping function.   You  should 
+   use *RESET after you have changed a disk.
+
+   *SAVE filespec aaaa bbbb
+   *SAVE filespec aaaa +llll
+   This command saves a specified range of memory to disk. The address range 
+   is  specified either as start (aaaa) and end+1 (bbbb) or as start  (aaaa) 
+   and length (llll). If the extension is omitted, .BBC is assumed.
+
+   *SPOOL [filespec]
+   Copy all subsequent console output to the specified file. If the filename 
+   is omitted,  any current spool file is closed and spooling is terminated. 
+   If the extension is omitted, .BBC is assumed.
+
+   *TYPE filespec
+   Type the specified file to the screen. If the extension is omitted,  .BBC 
+   is assumed.
+
+   *| comment
+   This is a comment line. Anything following the | is ignored.
+
+
+6. ERROR MESSAGES AND CODES
+
+   Untrappable:
+
+          No room                       RENUMBER space
+          Silly                         LINE space
+          Sorry                         Bad program
+
+   Trappable - BASIC:
+
+      1   Out of range             24   Exp range
+      2                            25   
+      3                            26   No such variable
+      4   Mistake                  27   Missing )
+      5   Missing ,                28   Bad HEX
+      6   Type mismatch            29   No such FN/PROC
+      7   No FN                    30   Bad call
+      8                            31   Arguments
+      9   Missing "                32   No FOR
+     10   Bad DIM                  33   Can't match FOR
+     11   DIM space                34   FOR variable
+     12   Not LOCAL                35
+     13   No PROC                  36   No TO
+     14   Array                    37
+     15   Subscript                38   No GOSUB
+     16   Syntax error             39   ON syntax
+     17   Escape                   40   ON range
+     18   Division by zero         41   No such line
+     19   String too long          42   Out of DATA
+     20   Too big                  43   No REPEAT
+     21   -ve root                 44
+     22   Log range                45   Missing #
+     23   Accuracy lost
+
+   Trappable - OS:
+
+     190  Directory full           214  File not found
+     192  Too many open files      222  Channel
+     196  File exists              253  Bad string
+     198  Disk full                254  Bad command
+     200  Close error              255  CP/M error
+     204  Bad name
+
+
+New features in BBC BASIC (Z80) version 5.00, May 2024:
+
+1. BASIC V statements
+
+1.1  WHILE...ENDWHILE
+1.2  Multi-line IF...THEN...ELSE...ENDIF
+1.3  CASE...WHEN...OTHERWISE...ENDCASE
+1.4  LOCAL DATA / RESTORE DATA
+1.5  ON ERROR LOCAL / RESTORE ERROR
+1.6  DIM var LOCAL size 
+1.7  ERROR err, message$
+1.8  RESTORE +n
+1.9  SWAP var1,var2
+1.10 BPUT #file,string$[;]
+1.11 QUIT
+
+2. BASIC V functions
+
+2.1  DIM(array()[,sub])
+2.2  END (pointer to free space)
+2.3  REPORT$
+2.4  Binary constants
+2.5  LEFT$ & RIGHT$ with last parameter omitted
+2.6  MOD(array)
+2.7  SUM(array)
+2.8  SUMLEN(array)
+2.9  GET$#file 
+
+3. BASIC V whole array operations
+
+3.1  Pass a whole array to a FN/PROC
+3.2  Pass a whole array to CALL
+3.3  Whole array assignment
+3.4  Whole array arithmetic *
+3.5  Array dot-product operator
+3.6  Array initialisation lists
+3.7  Array compound assignment (+= etc.)
+3.8  Make a whole array LOCAL
+3.9  DIM a LOCAL array (on the stack) + 
+
+* String array expressions A$() = B$() + C$() are not currently supported.
++ LOCAL string arrays should be initialised to their maximum needed length
+  to eliminate the risk of a memory leak each time the PROC/FN is called:
+     LOCAL a$() : DIM a$(size%) : a$() = STRING$(max%, "a") : a$() = ""
+
+4. Miscellaneous BASIC V features
+
+4.1  Bit-shifts <<, >>, >>>
+4.2  Floating-point indirection (|)
+4.3  RETURNed parameters from FN/PROC
+4.4  Compound assignment (+=, -=, *=, /= etc.)
+4.5  Assigning to a sub-string: LEFT$()=, MID$()= , RIGHT$()=
+4.6  Hooks for CIRCLE,ELLIPSE,FILL,LINE,MOUSE,ORIGIN,RECTANGLE,TINT,SYS,WAIT
+4.7  Hooks for WIDTH function, TINT function, MODE function
+
+5. Extensions to Acorn's BASIC V, compatible with BB4W, BBCSDL and BBCTTY
+
+5.1  EXIT REPEAT / WHILE / FOR [var]
+5.2  Address-of operator ^
+5.3  Byte variables and arrays (& suffix)
+5.4  'BY len' and 'TO term' qualifiers to GET$#file
+5.5  ELSE IF <condition> THEN; (trailing semicolon)
+5.6  == synonymous with = in comparisons
+5.7  DIM a global array inside a FN/PROC (use RETURN)
+
+Note: The token for PUT has changed from &CE in version 3 to &0E in version 5.
+If this token is present in existing programs it will list as ENDWHILE rather
+than PUT, and the programs will need to be modified to restore functionality.
\ No newline at end of file
diff --git a/Source/Apps/BBCBASIC/cmos.z80 b/Source/Apps/BBCBASIC/cmos.z80
new file mode 100644
index 00000000..c76ce6c3
--- /dev/null
+++ b/Source/Apps/BBCBASIC/cmos.z80
@@ -0,0 +1,1494 @@
+	TITLE	BBC BASIC (C) R.T.RUSSELL 1984-2024
+	NAME	('CMOS')
+;
+;PATCH FOR BBC BASIC TO CP/M 2.2 & 3.0
+;*    PLAIN VANILLA CP/M VERSION     *
+;(C) COPYRIGHT R.T.RUSSELL, 25-12-1986
+;VERSION 5.0, 25-05-2024
+;
+	GLOBAL	OSINIT
+	GLOBAL	OSRDCH
+	GLOBAL	OSWRCH
+	GLOBAL	OSLINE
+	GLOBAL	OSSAVE
+	GLOBAL	OSLOAD
+	GLOBAL	OSOPEN
+	GLOBAL	OSSHUT
+	GLOBAL	OSBGET
+	GLOBAL	OSBPUT
+	GLOBAL	OSSTAT
+	GLOBAL	GETEXT
+	GLOBAL	GETPTR
+	GLOBAL	PUTPTR
+	GLOBAL	PROMPT
+	GLOBAL	RESET
+	GLOBAL	LTRAP
+	GLOBAL	OSCLI
+	GLOBAL	TRAP
+	GLOBAL	OSKEY
+	GLOBAL	OSCALL
+;
+	EXTRN	BYE
+	EXTRN	GETKEY
+;
+	EXTRN	ESCAPE
+	EXTRN	EXTERR
+	EXTRN	CHECK
+	EXTRN	CRLF
+;
+	EXTRN	ACCS
+	EXTRN	FREE
+	EXTRN	HIMEM
+	EXTRN	CURLIN
+	EXTRN	USER
+	EXTRN	VERMSG
+;
+;
+;OSSAVE - Save an area of memory to a file.
+;   Inputs: HL addresses filename (term CR)
+;           DE = start address of data to save
+;           BC = length of data to save (bytes)
+; Destroys: A,B,C,D,E,H,L,F
+;
+STSAVE:	CALL	SAVLOD		;*SAVE
+	JP	C,HUH		;"Bad command"
+	PUSH	HL
+	JR	OSS1
+;
+OSSAVE:	PUSH	BC		;SAVE
+	CALL	SETUP0
+OSS1:	EX	DE,HL
+	CALL	CREATE
+	JR	NZ,SAVE
+DIRFUL:	LD	A,190
+	CALL	EXTERR
+	DEFM	'Directory full'
+	DEFB	0
+SAVE:	CALL	WRITE
+	ADD	HL,BC
+	EX	(SP),HL
+	SBC	HL,BC
+	EX	(SP),HL
+	JR	Z,SAVE1
+	JR	NC,SAVE
+SAVE1:	POP	BC
+CLOSE:	LD	A,16
+	CALL	BDOS1
+	INC	A
+	RET	NZ
+	LD	A,200
+	CALL	EXTERR
+	DEFM	'Close error'
+	DEFB	0
+;
+;OSSHUT - Close disk file(s).
+;   Inputs: E = file channel
+;           If E=0 all files are closed (except SPOOL)
+; Destroys: A,B,C,D,E,H,L,F
+;
+OSSHUT:	LD	A,E
+	OR	A
+	JR	NZ,SHUTIT
+SHUT0:	INC	E
+	BIT	3,E
+	RET	NZ
+	PUSH	DE
+	CALL	SHUT1
+	POP	DE
+	JR	SHUT0
+;
+SHUTIT:	CALL	FIND1
+	JR	NZ,SHUT2
+	JP	CHANER
+;
+SESHUT:	LD	HL,FLAGS
+	RES	0,(HL)		;STOP EXEC
+	RES	1,(HL)		;STOP SPOOL
+	LD	E,8		;SPOOL/EXEC CHANNEL
+SHUT1:	CALL	FIND1
+	RET	Z
+SHUT2:	XOR	A
+	LD	(HL),A
+	DEC	HL
+	LD	(HL),A
+	LD	HL,37
+	ADD	HL,DE
+	BIT	7,(HL)
+	INC	HL
+	CALL	NZ,WRITE
+	LD	HL,FCBSIZ
+	ADD	HL,DE
+	LD	BC,(FREE)
+	SBC	HL,BC
+	JR	NZ,CLOSE
+	LD	(FREE),DE	;RELEASE SPACE
+	JR	CLOSE
+;
+;TYPE - *TYPE command.
+;Types file to console output.
+;
+TYPE:	SCF			;*TYPE
+	CALL	OSOPEN
+	OR	A
+	JR	Z,NOTFND
+	LD	E,A
+TYPE1:	LD	A,(FLAGS)	;TEST
+	BIT	7,A		;FOR
+	JR	NZ,TYPESC	;ESCape
+	CALL	OSBGET
+	CALL	OSWRCH		;N.B. CALLS "TEST"
+	JR	NC,TYPE1
+	JR	OSSHUT
+;
+TYPESC:	CALL	OSSHUT		;CLOSE!
+	JP	ABORT
+;
+;OSLOAD - Load an area of memory from a file.
+;   Inputs: HL addresses filename (term CR)
+;           DE = address at which to load
+;           BC = maximum allowed size (bytes)
+;  Outputs: Carry reset indicates no room for file.
+; Destroys: A,B,C,D,E,H,L,F
+;
+STLOAD:	CALL	SAVLOD		;*LOAD
+	PUSH	HL
+	JR	OSL1
+;
+OSLOAD:	PUSH	BC		;LOAD
+	CALL	SETUP0
+OSL1:	EX	DE,HL
+	CALL	OPEN
+	JR	NZ,LOAD0
+NOTFND:	LD	A,214
+	CALL	EXTERR
+	DEFM	'File not found'
+	DEFB	0
+LOAD:	CALL	READ
+	JR	NZ,LOAD1
+	CALL	INCSEC
+	ADD	HL,BC
+LOAD0:	EX	(SP),HL
+	SBC	HL,BC
+	EX	(SP),HL
+	JR	NC,LOAD
+LOAD1:	POP	BC
+	PUSH	AF
+	CALL	CLOSE
+	POP	AF
+	CCF
+OSCALL:	RET
+;
+;OSOPEN - Open a file for reading or writing.
+;   Inputs: HL addresses filename (term CR)
+;           Carry set for OPENIN, cleared for OPENOUT.
+;  Outputs: A = file channel (=0 if cannot open)
+;           DE = file FCB
+; Destroys: A,B,C,D,E,H,L,F
+;
+OPENIT:	PUSH	AF		;SAVE CARRY
+	CALL	SETUP0
+	POP	AF
+	CALL	NC,CREATE
+	CALL	C,OPEN
+	RET
+;
+OSOPEN:	CALL	OPENIT
+	RET	Z		;ERROR
+	LD	B,7		;MAX. NUMBER OF FILES
+	LD	HL,TABLE+15
+OPEN1:	LD	A,(HL)
+	DEC	HL
+	OR	(HL)
+	JR	Z,OPEN2		;FREE CHANNEL
+	DEC	HL
+	DJNZ	OPEN1
+	LD	A,192
+	CALL	EXTERR
+	DEFM	'Too many open files'
+	DEFB	0
+;
+OPEN2:	LD	DE,(FREE)	;FREE SPACE POINTER
+	LD	(HL),E
+	INC	HL
+	LD	(HL),D
+	LD	A,B		;CHANNEL (1-7)
+	LD	HL,FCBSIZ
+	ADD	HL,DE		;RESERVE SPACE
+	LD	(FREE),HL
+OPEN3:	LD	HL,FCB		;ENTRY FROM SPOOL/EXEC
+	PUSH	DE
+	LD	BC,36
+	LDIR			;COPY FCB
+	EX	DE,HL
+	INC	HL
+	LD	(HL),C		;CLEAR PTR
+	INC	HL
+	POP	DE
+	LD	B,A
+	CALL	RDF		;READ OR FILL
+	LD	A,B
+	JP	CHECK
+;
+;OSBPUT - Write a byte to a random disk file.
+;   Inputs: E = file channel
+;           A = byte to write
+; Destroys: A,B,C,F
+;
+OSBPUT:	PUSH	DE
+	PUSH	HL
+	LD	B,A
+	CALL	FIND
+	LD	A,B
+	LD	B,0
+	DEC	HL
+	LD	(HL),B		;CLEAR EOF
+	INC	HL
+	LD	C,(HL)
+	RES	7,C
+	SET	7,(HL)
+	INC	(HL)
+	INC	HL
+	PUSH	HL
+	ADD	HL,BC
+	LD	(HL),A
+	POP	HL
+	CALL	Z,WRRDF		;WRITE THEN READ/FILL
+	POP	HL
+	POP	DE
+	RET
+;
+;OSBGET - Read a byte from a random disk file.
+;   Inputs: E = file channel
+;  Outputs: A = byte read
+;           Carry set if LAST BYTE of file
+; Destroys: A,B,C,F
+;
+OSBGET:	PUSH	DE
+	PUSH	HL
+	CALL	FIND
+	LD	C,(HL)
+	RES	7,C
+	INC	(HL)
+	INC	HL
+	PUSH	HL
+	LD	B,0
+	ADD	HL,BC
+	LD	B,(HL)
+	POP	HL
+	CALL	PE,INCRDF	;INC SECTOR THEN READ
+	CALL	Z,WRRDF		;WRITE THEN READ/FILL
+	LD	A,B
+	POP	HL
+	POP	DE
+	RET
+;
+;OSSTAT - Read file status.
+;   Inputs: E = file channel
+;  Outputs: Z flag set - EOF
+;           (If Z then A=0)
+;           DE = address of file block.
+; Destroys: A,D,E,H,L,F
+;
+OSSTAT:	CALL	FIND
+	DEC	HL
+	LD	A,(HL)
+	INC	A
+	RET
+;
+;GETEXT - Find file size.
+;   Inputs: E = file channel
+;  Outputs: DEHL = file size (0-&800000)
+; Destroys: A,B,C,D,E,H,L,F
+;
+GETEXT:	CALL	FIND
+	EX	DE,HL
+	LD	DE,FCB
+	LD	BC,36
+	PUSH	DE
+	LDIR			;COPY FCB
+	EX	DE,HL
+	EX	(SP),HL
+	EX	DE,HL
+	LD	A,35
+	CALL	BDOS1		;COMPUTE SIZE
+	POP	HL
+	XOR	A
+	JR	GETPT1
+;
+;GETPTR - Return file pointer.
+;   Inputs: E = file channel
+;  Outputs: DEHL = pointer (0-&7FFFFF)
+; Destroys: A,B,C,D,E,H,L,F
+;
+GETPTR:	CALL	FIND
+	LD	A,(HL)
+	ADD	A,A
+	DEC	HL
+GETPT1:	DEC	HL
+	LD	D,(HL)
+	DEC	HL
+	LD	E,(HL)
+	DEC	HL
+	LD	H,(HL)
+	LD	L,A
+	SRL	D
+	RR	E
+	RR	H
+	RR	L
+	RET
+;
+;PUTPTR - Update file pointer.
+;   Inputs: A = file channel
+;           DEHL = new pointer (0-&7FFFFF)
+; Destroys: A,B,C,D,E,H,L,F
+;
+PUTPTR:	LD	D,L
+	ADD	HL,HL
+	RL	E
+	LD	B,E
+	LD	C,H
+	LD	E,A		;CHANNEL
+	PUSH	DE
+	CALL	FIND
+	POP	AF
+	AND	7FH
+	BIT	7,(HL)		;PENDING WRITE?
+	JR	Z,PUTPT1
+	OR	80H
+PUTPT1:	LD	(HL),A
+	PUSH	DE
+	PUSH	HL
+	DEC	HL
+	DEC	HL
+	DEC	HL
+	LD	D,(HL)
+	DEC	HL
+	LD	E,(HL)
+	EX	DE,HL
+	OR	A
+	SBC	HL,BC
+	POP	HL
+	POP	DE
+	RET	Z
+	INC	HL
+	OR	A
+	CALL	M,WRITE
+	PUSH	HL
+	DEC	HL
+	DEC	HL
+	DEC	HL
+	LD	(HL),0
+	DEC	HL
+	LD	(HL),B
+	DEC	HL
+	LD	(HL),C		;NEW RECORD NO.
+	POP	HL
+	JR	RDF
+;
+;WRRDF - Write, read; if EOF fill with zeroes.
+;RDF - Read; if EOF fill with zeroes.
+;   Inputs: DE address FCB.
+;           HL addresses data buffer.
+;  Outputs: A=0, Z-flag set.
+;           Carry set if fill done (EOF)
+; Destroys: A,H,L,F
+;
+WRRDF:	CALL	WRITE
+RDF:	CALL	READ
+	DEC	HL
+	RES	7,(HL)
+	DEC	HL
+	LD	(HL),A		;CLEAR EOF FLAG
+	RET	Z
+	LD	(HL),-1		;SET EOF FLAG
+	INC	HL
+	INC	HL
+	PUSH	BC
+	XOR	A
+	LD	B,128
+FILL:	LD	(HL),A
+	INC	HL
+	DJNZ	FILL
+	POP	BC
+	SCF
+	RET
+;
+;INCRDF - Increment record, read; if EOF fill.
+;   Inputs: DE addresses FCB.
+;           HL addresses data buffer.
+;  Outputs: A=1, Z-flag reset.
+;           Carry set if fill done (EOF)
+; Destroys: A,H,L,F
+;
+INCRDF:	CALL	INCSEC
+	CALL	RDF
+	INC	A
+	RET
+;
+;READ - Read a record from a disk file.
+;   Inputs: DE addresses FCB.
+;           HL = address to store data.
+;  Outputs: A<>0 & Z-flag reset indicates EOF.
+;           Carry = 0
+; Destroys: A,F
+;
+;BDOS1 - CP/M BDOS call.
+;   Inputs: A = function number
+;          DE = parameter
+;  Outputs: AF = result (carry=0)
+; Destroys: A,F
+;
+READ:	CALL	SETDMA
+	LD	A,33
+BDOS1:	CALL	BDOS0		;*
+	JR	NZ,CPMERR	;*
+	OR	A		;*
+	RET			;*
+CPMERR:	LD	A,255		;* CP/M 3
+	CALL	EXTERR		;* BDOS ERROR
+	DEFM	'CP/M Error'	;*
+	DEFB	0		;*
+;
+BDOS0:	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	PUSH	IX
+	PUSH	IY
+	LD	C,A
+	CALL	BDOS
+	INC	H		;* TEST H
+	DEC	H		;* CP/M 3 ONLY
+	POP	IY
+	POP	IX
+	POP	HL
+	POP	DE
+	POP	BC
+	RET
+;
+;WRITE - Write a record to a disk file.
+;   Inputs: DE addresses FCB.
+;           HL = address to get data.
+; Destroys: A,F
+;
+WRITE:	CALL	SETDMA
+	LD	A,40
+	CALL	BDOS1
+	JR	Z,INCSEC
+	LD	A,198
+	CALL	EXTERR
+	DEFM	'Disk full'
+	DEFB	0
+;
+;INCSEC - Increment random record number.
+;   Inputs: DE addresses FCB.
+; Destroys: F
+;
+INCSEC:	PUSH	HL
+	LD	HL,33
+	ADD	HL,DE
+INCS1:	INC	(HL)
+	INC	HL
+	JR	Z,INCS1
+	POP	HL
+	RET
+;
+;OPEN - Open a file for access.
+;   Inputs: FCB set up.
+;  Outputs: DE = FCB
+;           A=0 & Z-flag set indicates Not Found.
+;           Carry = 0
+; Destroys: A,D,E,F
+;
+OPEN:	LD	DE,FCB
+	LD	A,15
+	CALL	BDOS1
+	INC	A
+	RET
+;
+;CREATE - Create a disk file for writing.
+;   Inputs: FCB set up.
+;  Outputs: DE = FCB
+;           A=0 & Z-flag set indicates directory full.
+;           Carry = 0
+; Destroys: A,D,E,F
+;
+CREATE:	CALL	CHKAMB
+	LD	DE,FCB
+	LD	A,19
+	CALL	BDOS1		;DELETE
+	LD	A,22
+	CALL	BDOS1		;MAKE
+	INC	A
+	RET
+;
+;CHKAMB - Check for ambiguous filename.
+; Destroys: A,D,E,F
+;
+CHKAMB:	PUSH	BC
+	LD	DE,FCB
+	LD	B,12
+CHKAM1:	LD	A,(DE)
+	CP	'?'
+	JR	Z,AMBIG		;AMBIGUOUS
+	INC	DE
+	DJNZ	CHKAM1
+	POP	BC
+	RET
+AMBIG:	LD	A,204
+	CALL	EXTERR
+	DEFM	'Bad name'
+	DEFB	0
+;
+;SETDMA - Set "DMA" address.
+;   Inputs: HL = address
+; Destroys: A,F
+;
+SETDMA:	LD	A,26
+	EX	DE,HL
+	CALL	BDOS0
+	EX	DE,HL
+	RET
+;
+;FIND - Find file parameters from channel.
+;   Inputs: E = channel
+;  Outputs: DE addresses FCB
+;           HL addresses pointer byte (FCB+37)
+; Destroys: A,D,E,H,L,F
+;
+FIND:	INC	E		;N.B. channel 8 is SPOOL/EXEC
+	DEC	E
+	JR	Z,CHANER
+	CALL	FIND1
+	LD	HL,37
+	ADD	HL,DE
+	RET	NZ
+CHANER:	LD	A,222
+	CALL	EXTERR
+	DEFM	'Invalid channel'
+	DEFB	0
+;
+;FIND1 - Look up file table.
+;   Inputs: E = channel
+;  Outputs: Z-flag set = file not opened
+;           If NZ, DE addresses FCB
+;                  HL points into table
+; Destroys: A,D,E,H,L,F
+;
+FIND1:	LD	A,E
+	AND	7
+	ADD	A,A
+	LD	E,A
+	LD	D,0
+	LD	HL,TABLE
+	ADD	HL,DE
+	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)
+	LD	A,D
+	OR	E
+	RET
+;
+;SETUP - Set up File Control Block.
+;   Inputs: HL addresses filename
+;           Format  [A:]FILENAME[.EXT]
+;           Device defaults to current drive
+;           Extension defaults to .BBC
+;           A = fill character
+;  Outputs: HL updated
+;           A = terminator
+;           BC = 128
+; Destroys: A,B,C,H,L,F
+;
+;FCB FORMAT (36 BYTES TOTAL):
+; 0      0=SAME DISK, 1=DISK A, 2=DISK B (ETC.)
+; 1-8    FILENAME, PADDED WITH SPACES
+; 9-11   EXTENSION, PADDED WITH SPACES
+; 12     CURRENT EXTENT, SET TO ZERO
+; 32-35  CLEARED TO ZERO
+;
+SETUP0:	LD	A,' '
+SETUP:	PUSH	DE
+	PUSH	HL
+	LD	DE,FCB+9
+	LD	HL,BBC
+	LD	BC,3
+	LDIR
+	LD	HL,FCB+32
+	LD	B,4
+SETUP1:	LD	(HL),C
+	INC	HL
+	DJNZ	SETUP1
+	POP	HL
+	LD	C,A
+	XOR	A
+	LD	(DE),A
+	POP	DE
+	CALL	SKIPSP
+	CP	'"'
+	JR	NZ,SETUP2
+	INC	HL
+	CALL	SKIPSP
+	CALL	SETUP2
+	CP	'"'
+	INC	HL
+	JR	Z,SKIPSP
+BADSTR:	LD	A,253
+	CALL	EXTERR
+	DEFM	'Bad string'
+	DEFB	0
+;
+PARSE:	LD	A,(HL)
+	INC	HL
+	CP	'`'
+	RET	NC
+	CP	'?'
+	RET	C
+	XOR	40H
+	RET
+;
+SETUP2:	PUSH	DE
+	INC	HL
+	LD	A,(HL)
+	CP	':'
+	DEC	HL
+	LD	A,B
+	JR	NZ,DEVICE
+	LD	A,(HL)		;DRIVE
+	AND	31
+	INC	HL
+	INC	HL
+DEVICE:	LD	DE,FCB
+	LD	(DE),A
+	INC	DE
+	LD	B,8
+COPYF:	LD	A,(HL)
+	CP	'.'
+	JR	Z,COPYF1
+	CP	' '
+	JR	Z,COPYF1
+	CP	CR
+	JR	Z,COPYF1
+	CP	'='
+	JR	Z,COPYF1
+	CP	'"'
+	JR	Z,COPYF1
+	LD	C,'?'
+	CP	'*'
+	JR	Z,COPYF1
+	LD	C,' '
+	INC	HL
+	CP	'|'
+	JR	NZ,COPYF2
+	CALL	PARSE
+	JR	COPYF0
+COPYF1:	LD	A,C
+COPYF2:	CALL	UPPRC
+COPYF0:	LD	(DE),A
+	INC	DE
+	DJNZ	COPYF
+COPYF3:	LD	A,(HL)
+	INC	HL
+	CP	'*'
+	JR	Z,COPYF3
+	CP	'.'
+	LD	BC,3*256+' '
+	LD	DE,FCB+9
+	JR	Z,COPYF
+	DEC	HL
+	POP	DE
+	LD	BC,128
+SKIPSP:	LD	A,(HL)
+	CP	' '
+	RET	NZ
+	INC	HL
+	JR	SKIPSP
+;
+BBC:	DEFM	'BBC'
+;
+;HEX - Read a hex string and convert to binary.
+;   Inputs: HL = text pointer
+;  Outputs: HL = updated text pointer
+;           DE = value
+;            A = terminator (spaces skipped)
+; Destroys: A,D,E,H,L,F
+;
+HEX:	LD	DE,0		;INITIALISE
+	CALL	SKIPSP
+HEX1:	LD	A,(HL)
+	CALL	UPPRC
+	CP	'0'
+	JR	C,SKIPSP
+	CP	'9'+1
+	JR	C,HEX2
+	CP	'A'
+	JR	C,SKIPSP
+	CP	'F'+1
+	JR	NC,SKIPSP
+	SUB	7
+HEX2:	AND	0FH
+	EX	DE,HL
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,HL
+	EX	DE,HL
+	OR	E
+	LD	E,A
+	INC	HL
+	JR	HEX1
+;
+;OSCLI - Process an "operating system" command
+;
+OSCLI:	CALL	SKIPSP
+	CP	CR
+	RET	Z
+	CP	'|'
+	RET	Z
+	CP	'.'
+	JP	Z,DOT		;*.
+	EX	DE,HL
+	LD	HL,COMDS
+OSCLI0:	LD	A,(DE)
+	CALL	UPPRC
+	CP	(HL)
+	JR	Z,OSCLI2
+	JR	C,HUH
+OSCLI1:	BIT	7,(HL)
+	INC	HL
+	JR	Z,OSCLI1
+	INC	HL
+	INC	HL
+	JR	OSCLI0
+;
+OSCLI2:	PUSH	DE
+OSCLI3:	INC	DE
+	INC	HL
+	LD	A,(DE)
+	CALL	UPPRC
+	CP	'.'		;ABBREVIATED?
+	JR	Z,OSCLI4
+	XOR	(HL)
+	JR	Z,OSCLI3
+	CP	80H
+	JR	Z,OSCLI4
+	POP	DE
+	JR	OSCLI1
+;
+OSCLI4:	POP	AF
+	INC	DE
+OSCLI5:	BIT	7,(HL)
+	INC	HL
+	JR	Z,OSCLI5
+	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	PUSH	HL
+	EX	DE,HL
+	JP	SKIPSP
+;
+;
+ERA:	CALL	SETUP0		;*ERA, *ERASE
+	LD	C,19
+	JR	XEQ		;"DELETE"
+;
+RES:	LD	C,13		;*RESET
+	JR	XEQ		;"RESET"
+;
+DRV:	CALL	SETUP0		;*DRIVE
+	LD	A,(FCB)
+	DEC	A
+	JP	M,HUH
+	LD	E,A
+	LD	C,14
+	JR	XEQ0
+;
+REN:	CALL	SETUP0		;*REN, *RENAME
+	CP	'='
+	JR	NZ,HUH
+	INC	HL		;SKIP "="
+	PUSH	HL
+	CALL	EXISTS
+	LD	HL,FCB
+	LD	DE,FCB+16
+	LD	BC,12
+	LDIR
+	POP	HL
+	CALL	SETUP0
+	CALL	CHKAMB
+	LD	C,23
+XEQ:	LD	DE,FCB
+XEQ0:	LD	A,(HL)
+	CP	CR
+	JR	NZ,HUH
+BDC:	LD	A,C
+	CALL	BDOS1
+	RET	P
+HUH:	LD	A,254
+	CALL	EXTERR
+	DEFM	'Bad command'
+	DEFB	0
+;
+EXISTS:	LD	HL,DSKBUF
+	CALL	SETDMA
+	LD	DE,FCB
+	LD	A,17
+	CALL	BDOS1		;SEARCH
+	INC	A
+	RET	Z
+	LD	A,196
+	CALL	EXTERR
+	DEFM	'File exists'
+	DEFB	0
+;
+SAVLOD:	CALL	SETUP0		;PART OF *SAVE, *LOAD
+	CALL	HEX
+	CP	'+'
+	PUSH	AF
+	PUSH	DE
+	JR	NZ,SAVLO1
+	INC	HL
+SAVLO1:	CALL	HEX
+	CP	CR
+	JR	NZ,HUH
+	EX	DE,HL
+	POP	DE
+	POP	AF
+	RET	Z
+	OR	A
+	SBC	HL,DE
+	RET	NZ
+	JR	HUH
+;
+DOT:	INC	HL
+DIR:	LD	A,'?'		;*DIR
+	CALL	SETUP
+	CP	CR
+	JR	NZ,HUH
+	LD	C,17
+DIR0:	LD	B,4
+DIR1:	CALL	LTRAP
+	LD	DE,FCB
+	LD	HL,DSKBUF
+	CALL	SETDMA
+	LD	A,C
+	CALL	BDOS1		;SEARCH DIRECTORY
+	JP	M,CRLF
+	RRCA
+	RRCA
+	RRCA
+	AND	60H
+	LD	E,A
+	LD	D,0
+	LD	HL,DSKBUF+1
+	ADD	HL,DE
+	PUSH	HL
+	LD	DE,8		;**
+	ADD	HL,DE
+	LD	E,(HL)		;**
+	INC	HL		;**
+	BIT	7,(HL)		;SYSTEM FILE?
+	POP	HL
+	LD	C,18
+	JR	NZ,DIR1
+	PUSH	BC
+	LD	A,(FCB)
+	DEC	A
+	LD	C,25
+	CALL	M,BDC
+	ADD	A,'A'
+	CALL	OSWRCH
+	LD	B,8
+	LD	A,' '		;**
+	BIT	7,E		;** READ ONLY?
+	JR	Z,DIR3		;**
+	LD	A,'*'		;**
+DIR3:	CALL	CPTEXT
+	LD	B,3
+	LD	A,' '		;**
+	CALL	SPTEXT
+	POP	BC
+	DJNZ	DIR2
+	CALL	CRLF
+	JR	DIR0
+;
+DIR2:	PUSH	BC
+	LD	B,5
+PAD:	LD	A,' '
+	CALL	OSWRCH
+	DJNZ	PAD
+	POP	BC
+	JR	DIR1
+;
+OPT:	CALL	HEX		;*OPT
+	LD	A,E
+	AND	3
+SETOPT:	LD	(OPTVAL),A
+	RET
+;
+RESET:	XOR	A
+	JR	SETOPT
+;
+EXEC:	LD	A,00000001B	;*EXEC
+	DEFB	1		;SKIP 2 BYTES (LD BC)
+SPOOL:	LD	A,00000010B	;*SPOOL
+	PUSH	AF
+	PUSH	HL
+	CALL	SESHUT		;STOP SPOOL/EXEC
+	POP	HL
+	POP	BC
+	LD	A,(HL)
+	CP	CR		;JUST SHUT?
+	RET	Z
+	LD	A,(FLAGS)
+	OR	B
+	LD	(FLAGS),A	;SPOOL/EXEC FLAG
+	RRA			;CARRY=1 FOR EXEC
+	CALL	OPENIT		;OPEN SPOOL/EXEC FILE
+	RET	Z		;DIR FULL / NOT FOUND
+	POP	IX		;RETURN ADDRESS
+	LD	HL,(HIMEM)
+	OR	A
+	SBC	HL,SP		;SP=HIMEM?
+	ADD	HL,SP
+	JR	NZ,JPIX		;ABORT
+	LD	BC,-FCBSIZ
+	ADD	HL,BC		;HL=HL-FCBSIZ
+	LD	(HIMEM),HL	;NEW HIMEM
+	LD	(TABLE),HL	;FCB/BUFFER
+	LD	SP,HL		;NEW SP
+	EX	DE,HL
+	CALL	OPEN3		;FINISH OPEN OPERATION
+JPIX:	JP	(IX)		;"RETURN"
+;
+UPPRC:	AND	7FH
+	CP	'`'
+	RET	C
+	AND	5FH		;CONVERT TO UPPER CASE
+	RET
+;
+HELP:	LD	B,32
+	LD	HL,VERMSG
+	JP	PTEXT
+;
+;*ESC COMMAND
+;
+ESCCTL:	LD	A,(HL)
+	CALL	UPPRC		;**
+	CP	'O'
+	JR	NZ,ESCC1
+	INC	HL
+ESCC1:	CALL	HEX
+	LD	A,E
+	OR	A
+	LD	HL,FLAGS
+	RES	6,(HL)		;ENABLE ESCAPE
+	RET	Z
+	SET	6,(HL)		;DISABLE ESCAPE
+	RET
+;
+;
+COMDS:	DEFM	'BY'
+	DEFB	'E'+80H
+	DEFW	BYE
+	DEFM	'DI'
+	DEFB	'R'+80H
+	DEFW	DIR
+	DEFM	'DRIV'
+	DEFB	'E'+80H
+	DEFW	DRV
+	DEFM	'ERAS'
+	DEFB	'E'+80H
+	DEFW	ERA
+	DEFM	'ER'
+	DEFB	'A'+80H
+	DEFW	ERA
+	DEFM	'ES'
+	DEFB	'C'+80H
+	DEFW	ESCCTL
+	DEFM	'EXE'
+	DEFB	'C'+80H
+	DEFW	EXEC
+	DEFM	'HEL'
+	DEFB	'P'+80H
+	DEFW	HELP
+	DEFM	'LOA'
+	DEFB	'D'+80H
+	DEFW	STLOAD
+	DEFM	'OP'
+	DEFB	'T'+80H
+	DEFW	OPT
+	DEFM	'QUI'
+	DEFB	'T'+80H
+	DEFW	BYE
+	DEFM	'RENAM'
+	DEFB	'E'+80H
+	DEFW	REN
+	DEFM	'RE'
+	DEFB	'N'+80H
+	DEFW	REN
+	DEFM	'RESE'
+	DEFB	'T'+80H
+	DEFW	RES
+	DEFM	'SAV'
+	DEFB	'E'+80H
+	DEFW	STSAVE
+	DEFM	'SPOO'
+	DEFB	'L'+80H
+	DEFW	SPOOL
+	DEFM	'TYP'
+	DEFB	'E'+80H
+	DEFW	TYPE
+	DEFB	0FFH
+;
+;PTEXT - Print text
+;   Inputs: HL = address of text
+;            B = number of characters to print
+; Destroys: A,B,H,L,F
+;
+CPTEXT:	PUSH	AF		;**
+	LD	A,':'
+	CALL	OSWRCH
+	POP	AF		;**
+SPTEXT:	CALL	OSWRCH		;**
+PTEXT:	LD	A,(HL)
+	AND	7FH
+	INC	HL
+	CALL	OSWRCH
+	DJNZ	PTEXT
+	RET
+;
+;OSINIT - Initialise RAM mapping etc.
+;If BASIC is entered by BBCBASIC FILENAME then file
+;FILENAME.BBC is automatically CHAINed.
+;   Outputs: DE = initial value of HIMEM (top of RAM)
+;            HL = initial value of PAGE (user program)
+;            Z-flag reset indicates AUTO-RUN.
+;  Destroys: A,B,C,D,E,H,L,F
+;
+OSINIT:	LD	C,45		;*
+	LD	E,254		;*
+	CALL	BDOS		;*
+	XOR	A
+	LD	B,INILEN
+	LD	HL,TABLE
+CLRTAB:	LD	(HL),A		;CLEAR FILE TABLE ETC.
+	INC	HL
+	DJNZ	CLRTAB
+	LD	DE,ACCS
+	LD	HL,DSKBUF
+	LD	C,(HL)
+	INC	HL
+	CP	C		;N.B. A=B=0
+	JR	Z,NOBOOT
+	LDIR			;COPY TO ACCS
+NOBOOT:	EX	DE,HL
+	LD	(HL),CR
+	LD	DE,(6)		;DE = HIMEM
+	LD	E,A		;PAGE BOUNDARY
+	LD	HL,USER
+	RET
+;
+;
+;TRAP - Test ESCAPE flag and abort if set;
+;       every 20th call, test for keypress.
+; Destroys: A,H,L,F
+;
+;LTRAP - Test ESCAPE flag and abort if set.
+; Destroys: A,F
+;
+TRAP:	LD	HL,TRPCNT
+	DEC	(HL)
+	CALL	Z,TEST20	;TEST KEYBOARD
+LTRAP:	LD	A,(FLAGS)	;ESCAPE FLAG
+	OR	A		;TEST
+	RET	P
+ABORT:	LD	HL,FLAGS	;ACKNOWLEDGE
+	RES	7,(HL)		;ESCAPE
+	JP	ESCAPE		;AND ABORT
+;
+;TEST - Sample for ESCape and CTRL/S. If ESCape
+;       pressed set ESCAPE flag and return.
+; Destroys: A,F
+;
+TEST20:	LD	(HL),20
+TEST:	PUSH	DE
+	LD	A,6
+	LD	E,0FFH
+	CALL	BDOS0
+	POP	DE
+	OR	A
+	RET	Z
+	CP	'S' AND 1FH	;PAUSE DISPLAY?
+	JR	Z,OSRDCH
+	CP	ESC
+	JR	Z,ESCSET
+	LD	(INKEY),A
+	RET
+;
+;OSRDCH - Read from the current input stream (keyboard).
+;  Outputs: A = character
+; Destroys: A,F
+;
+KEYGET:	LD	B,(IX-12)	;SCREEN WIDTH
+	CALL	OSRDCH
+	CP	DEL
+	JR	Z,KEYDEL
+	CP	224
+	RET	NZ
+	CALL	OSRDCH
+	SUB	65
+	RET
+;
+KEYDEL:	LD	A,BS
+	RET
+;
+OSRDCH:	LD	A,(FLAGS)
+	RRA			;*EXEC ACTIVE?
+	JR	C,EXECIN
+	PUSH	HL
+	SBC	HL,HL		;HL=0
+	CALL	OSKEY
+	POP	HL
+	RET	C
+	JR	OSRDCH
+;
+;EXECIN - Read byte from EXEC file
+;  Outputs: A = byte read
+; Destroys: A,F
+;
+EXECIN:	PUSH	BC		;SAVE REGISTERS
+	PUSH	DE
+	PUSH	HL
+	LD	E,8		;SPOOL/EXEC CHANNEL
+	LD	HL,FLAGS
+	RES	0,(HL)
+	CALL	OSBGET
+	SET	0,(HL)
+	PUSH	AF
+	CALL	C,SESHUT	;END EXEC IF EOF
+	POP	AF
+	POP	HL		;RESTORE REGISTERS
+	POP	DE
+	POP	BC
+	RET
+;
+;
+;OSKEY - Read key with time-limit, test for ESCape.
+;Main function is carried out in user patch.
+;   Inputs: HL = time limit (centiseconds)
+;  Outputs: Carry reset if time-out
+;           If carry set A = character
+; Destroys: A,H,L,F
+;
+OSKEY:	PUSH	HL
+	LD	HL,INKEY
+	LD	A,(HL)
+	LD	(HL),0
+	POP	HL
+	OR	A
+	SCF
+	RET	NZ
+	PUSH	DE
+	CALL	GETKEY
+	POP	DE
+	RET	NC
+	CP	ESC
+	SCF
+	RET	NZ
+ESCSET:	PUSH	HL
+	LD	HL,FLAGS
+	BIT	6,(HL)		;ESC DISABLED?
+	JR	NZ,ESCDIS
+	SET	7,(HL)		;SET ESCAPE FLAG
+ESCDIS:	POP	HL
+	RET
+;
+;OSWRCH - Write a character to console output.
+;   Inputs: A = character.
+; Destroys: Nothing
+;
+OSWRCH:	PUSH	AF
+	PUSH	DE
+	PUSH	HL
+	LD	E,A
+	CALL	TEST
+	CALL	EDPUT
+	POP	HL
+	POP	DE
+	POP	AF
+	RET
+;
+EDPUT:	LD	A,(FLAGS)
+	BIT	3,A
+	JR	Z,WRCH
+	LD	A,E
+	CP	' '
+	RET	C
+	LD	HL,(EDPTR)
+	LD	(HL),E
+	INC	L
+	RET	Z
+	LD	(EDPTR),HL
+	RET
+;
+PROMPT:	LD	E,'>'
+WRCH:	LD	A,(OPTVAL)	;FAST ENTRY
+	ADD	A,3
+	CP	3
+	JR	NZ,WRCH1
+	ADD	A,E
+	LD	A,2
+	JR	C,WRCH1
+	LD	A,6
+WRCH1:	CALL	BDOS0
+	LD	HL,FLAGS
+	BIT	2,(HL)
+	LD	A,5		;PRINTER O/P
+	CALL	NZ,BDOS0
+	BIT	1,(HL)		;SPOOLING?
+	RET	Z
+	RES	1,(HL)
+	LD	A,E		;BYTE TO WRITE
+	LD	E,8		;SPOOL/EXEC CHANNEL
+	PUSH	BC
+	CALL	OSBPUT
+	POP	BC
+	SET	1,(HL)
+	RET
+;
+TOGGLE:	LD	A,(FLAGS)
+	XOR	00000100B
+	LD	(FLAGS),A
+	RET
+;
+INSERT:	LD	A,(FLAGS)
+	XOR	00010000B
+	LD	(FLAGS),A
+	RET
+;
+;OSLINE - Read/edit a complete line, terminated by CR.
+;   Inputs: HL addresses destination buffer.
+;           (L=0)
+;  Outputs: Buffer filled, terminated by CR.
+;           A=0.
+; Destroys: A,B,C,D,E,H,L,F
+;
+OSLINE:	LD	IX,200H
+	LD	A,(FLAGS)
+	BIT	3,A		;EDIT MODE?
+	JR	Z,OSLIN1
+	RES	3,A
+	LD	(FLAGS),A
+	LD	HL,(EDPTR)
+	CP	L
+OSLIN1:	LD	A,CR
+	LD	(HL),A
+	CALL	NZ,OSWRCH
+	LD	L,0
+	LD	C,L		;REPEAT FLAG
+	JR	Z,OSWAIT	;SUPPRESS UNWANTED SPACE
+UPDATE:	LD	B,0
+UPD1:	LD	A,(HL)
+	INC	B
+	INC	HL
+	CP	CR
+	PUSH	AF
+	PUSH	HL
+	LD	E,A
+	CALL	NZ,WRCH		;FAST WRCH
+	POP	HL
+	POP	AF
+	JR	NZ,UPD1
+	LD	A,' '
+	CALL	OSWRCH
+	LD	E,BS
+UPD2:	PUSH	HL
+	CALL	WRCH		;FAST WRCH
+	POP	HL
+	DEC	HL
+	DJNZ	UPD2
+OSWAIT:	LD	A,C
+	DEC	B
+	JR	Z,LIMIT
+	OR	A		;REPEAT COMMAND?
+LIMIT:	CALL	Z,KEYGET	;READ KEYBOARD
+	LD	C,A		;SAVE FOR REPEAT
+	LD	DE,OSWAIT	;RETURN ADDRESS
+	PUSH	DE
+	LD	A,(FLAGS)
+	OR	A		;TEST FOR ESCAPE
+	LD	A,C
+	JP	M,OSEXIT
+	CP	(IX-11)		;CURSOR UP     (IX-11)
+	JP	Z,LEFT
+	CP	(IX-10)		;CURSOR DOWN   (IX-10)
+	JP	Z,RIGHT
+	LD	B,0
+	CP	(IX-5)		;CLEAR LEFT    (IX-5)
+	JR	Z,BACK
+	CP	(IX-9)		;START OF LINE (IX-9)
+	JR	Z,LEFT
+	CP	(IX-7)		;CLEAR RIGHT   (IX-7)
+	JR	Z,DELETE
+	CP	(IX-8)		;END OF LINE   (IX-8)
+	JP	Z,RIGHT
+	LD	C,0		;INHIBIT REPEAT
+	CP	'P' AND 1FH
+	JP	Z,TOGGLE
+	CP	(IX-1)		;INSERT / OVR  (IX-1)
+	JP	Z,INSERT
+	CP	(IX-6)		;DELETE LEFT   (IX-6)
+	JR	Z,BACK
+	CP	(IX-4)		;CURSOR LEFT   (IX-4)
+	JR	Z,LEFT
+	CP	(IX-2)		;DELETE RIGHT  (IX-2)
+	JR	Z,DELETE
+	CP	(IX-3)		;CURSOR RIGHT  (IX-3)
+	JP	Z,RIGHT
+	CP	' '		;PRINTING CHARACTER
+	JR	NC,SAVECH
+	CP	CR		;ENTER LINE
+	RET	NZ
+OSEXIT:	LD	A,(HL)
+	CALL	OSWRCH		;WRITE REST OF LINE
+	INC	HL
+	SUB	CR
+	JR	NZ,OSEXIT
+	POP	DE		;DITCH RETURN ADDRESS
+	CP	C
+	JP	NZ,ABORT	;ESCAPE
+	LD	A,LF
+	CALL	OSWRCH
+	LD	DE,(CURLIN)
+	XOR	A
+	LD	L,A
+	LD	(EDPTR),HL
+	CP	D
+	RET	NZ
+	CP	E
+	RET	NZ
+	LD	DE,EDITST
+	LD	B,4
+CMPARE:	LD	A,(DE)
+	CP	(HL)
+	LD	A,0
+	RET	NZ
+	INC	HL
+	INC	DE
+	LD	A,(HL)
+	CP	'.'
+	JR	Z,ABBR
+	DJNZ	CMPARE
+ABBR:	XOR	A
+	LD	B,A
+	LD	C,L
+	LD	L,A
+	LD	DE,LISTST
+	EX	DE,HL
+	LDIR
+	LD	HL,FLAGS
+	SET	3,(HL)
+	RET
+;
+BACK:	SCF			;DELETE LEFT
+LEFT:	INC	L		;CURSOR LEFT
+	DEC	L
+	JR	Z,STOP
+	LD	A,BS
+	CALL	OSWRCH
+	DEC	L
+	RET	NC
+DELETE:	LD	A,(HL)		;DELETE RIGHT
+	CP	CR
+	JR	Z,STOP
+	LD	D,H
+	LD	E,L
+DEL1:	INC	DE
+	LD	A,(DE)
+	DEC	DE
+	LD	(DE),A
+	INC	DE
+	CP	CR
+	JR	NZ,DEL1
+DEL2:	POP	DE		;DITCH
+	JP	UPDATE
+;
+SAVECH:	LD	D,A
+	LD	A,(FLAGS)
+	AND	00010000B
+	LD	A,D
+	JR	NZ,RIGHT1
+	LD	D,A
+	LD	A,CR		;INSERT SPACE
+	CP	(HL)
+	LD	A,D
+	JR	Z,RIGHT1
+	LD	D,H
+	LD	E,254
+	PUSH	AF
+INS1:	INC	DE
+	LD	(DE),A
+	DEC	DE
+	LD	A,E
+	CP	L
+	DEC	DE
+	LD	A,(DE)
+	JR	NZ,INS1
+	POP	AF
+	LD	(HL),A
+	INC	L
+	JR	Z,WONTGO
+	CALL	OSWRCH
+	JR	DEL2
+;
+RIGHT:	LD	A,(HL)		;CURSOR RIGHT
+	CP	CR
+	JR	Z,STOP
+RIGHT1:	LD	D,(HL)		;PRINTING CHARACTER
+	LD	(HL),A
+	INC	L
+	JR	Z,WONTGO	;LINE TOO LONG
+	CALL	OSWRCH
+	LD	A,CR
+	CP	D
+	RET	NZ
+	LD	(HL),A
+	RET
+;
+WONTGO:	DEC	L
+	LD	(HL),CR
+	LD	A,BEL
+	CALL	OSWRCH		;BEEP!
+STOP:	LD	C,0		;STOP REPEAT
+	RET
+;
+;
+EDITST:	DEFM	'EDIT'
+LISTST:	DEFM	'LIST'
+;
+BEL	EQU	7
+BS	EQU	8
+HT	EQU	9
+LF	EQU	0AH
+VT	EQU	0BH
+CR	EQU	0DH
+ESC	EQU	1BH
+DEL	EQU	7FH
+;
+BDOS	EQU	5
+;
+FCB	EQU	5CH
+DSKBUF	EQU	80H
+;
+FCBSIZ	EQU	128+36+2
+;
+TRPCNT:	DEFB	10
+TABLE:	DEFS	16		;FILE BLOCK POINTERS
+FLAGS:	DEFB	0
+INKEY:	DEFB	0
+EDPTR:	DEFW	0
+OPTVAL:	DEFB	0
+INILEN	EQU	$-TABLE
+;
+FIN:	END
diff --git a/Source/Apps/BBCBASIC/data.z80 b/Source/Apps/BBCBASIC/data.z80
new file mode 100644
index 00000000..a8e1a2c3
--- /dev/null
+++ b/Source/Apps/BBCBASIC/data.z80
@@ -0,0 +1,69 @@
+	TITLE	BBC BASIC (C) R.T.RUSSELL 1981-2024
+	NAME	('DATA')
+;
+;RAM MODULE FOR BBC BASIC INTERPRETER
+;FOR USE WITH VERSION 5.0 OF BBC BASIC
+;(C) COPYRIGHT R.T.RUSSELL 1981-2024
+;
+	GLOBAL	ACCS
+	GLOBAL	BUFFER
+	GLOBAL	ONERSP
+	GLOBAL	LIBASE
+	GLOBAL	PAGE
+	GLOBAL	LOMEM
+	GLOBAL	FREE
+	GLOBAL	HIMEM
+	GLOBAL	RANDOM
+	GLOBAL	COUNT
+	GLOBAL	WIDTH
+	GLOBAL	ERL
+	GLOBAL	ERR
+	GLOBAL	ERRTRP
+	GLOBAL	ERRTXT
+	GLOBAL	TRACEN
+	GLOBAL	AUTONO
+	GLOBAL	INCREM
+	GLOBAL	LISTON
+	GLOBAL	DATPTR
+	GLOBAL	FNPTR
+	GLOBAL	PROPTR
+	GLOBAL	STAVAR
+	GLOBAL	OC
+	GLOBAL	PC
+	GLOBAL	DYNVAR
+	GLOBAL	CURLIN
+	GLOBAL	USER
+;
+;n.b. ACCS, BUFFER & STAVAR must be on page boundaries.
+;
+ACCS:	DEFS	256		;STRING ACCUMULATOR
+BUFFER:	DEFS	256		;STRING INPUT BUFFER
+STAVAR:	DEFS	27*4		;STATIC VARIABLES
+OC	EQU	STAVAR+15*4	;CODE ORIGIN (O%)
+PC	EQU	STAVAR+16*4	;PROGRAM COUNTER (P%)
+DYNVAR:	DEFS	54*2		;DYN. VARIABLE POINTERS
+FNPTR:	DEFS	2		;DYN. FUNCTION POINTER
+PROPTR:	DEFS	2		;DYN. PROCEDURE POINTER
+;
+PAGE:	DEFS	2		;START OF USER PROGRAM
+LOMEM:	DEFS	2		;START OF DYN. STORAGE
+FREE:	DEFS	2		;FIRST FREE-SPACE BYTE
+HIMEM:	DEFS	2		;FIRST BYTE ABOVE STACK
+LIBASE:	DEFS	2		;START OF FIRST LIBRARY
+;
+TRACEN:	DEFS	2		;TRACE FLAG AND NUMBER
+AUTONO:	DEFS	2		;AUTO FLAG AND NUMBER
+ERRTRP:	DEFS	2		;ON ERROR STMT POINTER \
+ONERSP:	DEFS	2		;ON ERROR LOCAL STKPTR /
+ERRTXT:	DEFS	2		;ERROR MESSAGE POINTER
+DATPTR:	DEFS	2		;DATA POINTER
+ERL:	DEFS	2		;LINE NO OF LAST ERROR
+CURLIN:	DEFS	2		;POINTER TO CURRENT LINE
+RANDOM:	DEFS	5		;RANDOM NUMBER
+COUNT:	DEFS	1		;PRINT POSITION
+WIDTH:	DEFS	1		;PRINT WIDTH
+ERR:	DEFS	1		;ERROR NUMBER
+LISTON:	DEFS	1		;LISTO & OPT FLAG
+INCREM:	DEFS	1		;AUTO INCREMENT
+;
+USER:	END
diff --git a/Source/Apps/BBCBASIC/dist.z80 b/Source/Apps/BBCBASIC/dist.z80
new file mode 100644
index 00000000..abfb5560
--- /dev/null
+++ b/Source/Apps/BBCBASIC/dist.z80
@@ -0,0 +1,241 @@
+	TITLE	BBCDIST.Z80 (C) R.T.RUSSELL 1982-2024
+	NAME	('DIST3')
+;
+;BBC BASIC (Z80) - CP/M VERSION 2.20 & 3.00
+;(C) COPYRIGHT R.T.RUSSELL, 1982-2024.
+;ALL RIGHTS RESERVED.
+;
+;THIS PROGRAM ALLOWS THE USER TO ADAPT BBC BASIC TO THE
+;PARTICULAR CHARACTERISTICS OF HIS SYSTEM HARDWARE ETC.
+;
+;THE PROGRAM RESIDES AT 100H FOR EASE OF LOADING.
+;*** IT MUST NOT EXCEED 256 BYTES IN TOTAL LENGTH ***
+;
+;PLEASE NOTE THAT A Z80 PROCESSOR AND CP/M VERSION 2.2
+;OR LATER ARE REQUIRED.
+;
+;R.T.RUSSELL, 11-03-1984, 03-05-1989, 12-05-2024
+;
+CPM	EQU	5
+COLD	EQU	200H
+;
+CR	EQU	0DH
+LF	EQU	0AH
+ESC	EQU	1BH
+;
+	GLOBAL	CLRSCN
+	GLOBAL	PUTCSR
+	GLOBAL	GETCSR
+	GLOBAL	PUTIME
+	GLOBAL	GETIME
+	GLOBAL	GETKEY
+	GLOBAL	BYE
+	GLOBAL	BEGIN
+;	GLOBAL	BDOS
+;
+;	EXTRN	PRTDEC16
+;
+	;ASEG
+	;ORG	100H
+;
+;JUMP TABLE - BASIC makes calls to hardware-dependent
+;features via this table:
+;
+BEGIN:	JP	INIT
+CLRSCN:	JP	CLS		;CLEAR SCREEN
+PUTCSR:	JP	PCSR		;SET CURSOR POSN.
+GETCSR:	JP	GCSR		;READ CURSOR POSN.
+PUTIME:	JP	PTIME		;SET ELAPSED TIME
+GETIME:	JP	GTIME		;READ ELAPSED TIME
+GETKEY:	JP	INKEY		;READ KEY (TIME LIMIT)
+BYE:	JP	REBOOT		;RETURN TO CP/M
+;
+;BDOS	- Save the IX and IY registers and before performing a
+;	  CP/M function call.
+;
+BDOS:	PUSH	IX
+	PUSH	IY
+	CALL	CPM
+	POP	IY
+	POP	IX
+	RET
+;
+;INIT	- Perform hardware initialisation (if any).
+;
+INIT:	LD	HL,40H		;CPM/HBIOS MARKER LOC
+	LD	A,'W'
+	CP	(HL)
+	JR	NZ,FAIL
+	INC	HL
+	LD	A,NOT 'W'
+	CP	(HL)
+	JR	NZ,FAIL
+	JP	COLD
+FAIL:	LD	DE,NOTHB
+	LD	C,9
+	CALL	BDOS
+	RST	0
+;
+NOTHB:	DEFB	'CP/M w/ HBIOS required$'
+;
+;REBOOT	- Switch off interrupts and return to CP/M
+;
+REBOOT:	RST	0
+;
+;GTIME	- Read elapsed-time clock.
+;  	  Outputs: DEHL = elapsed time (centiseconds)
+; 	  Destroys: A,D,E,H,L,F
+;
+GTIME:	JR	TICKS
+;
+;PTIME	- Load elapsed-time clock.
+;   	  Inputs: DEHL = time to load (centiseconds)
+; 	  Destroys: A,D,E,H,L,F
+;
+PTIME:
+	LD	BC,0F9D0H
+	SRL	D
+	RR	E
+	RR	H
+	RR	L
+	RST	08
+	RET
+;
+; Get OS elapsed-time clock
+;  Outputs: DEHL = time (centiseconds)
+; Destroys: A,B,C,D,E,H,L,F
+;
+TICKS:	LD	BC,0F8D0H
+	RST	08
+	SLA	L
+	RL	H
+	RL	E
+	RL	D
+	RET
+;
+;INKEY	- Sample keyboard with specified wait.
+;   	  Inputs: HL = Time to wait (centiseconds)
+;  	  Outputs: Carry reset indicates time-out.
+;                  If carry set, A = character typed.
+; 	  Destroys: A,D,E,H,L,F
+;
+INKEY:	PUSH	BC
+	PUSH	HL
+	CALL	TICKS
+	POP	DE
+	ADD	HL,DE
+WAIT:	PUSH	HL
+	LD	C,6
+	LD	E,0FFH
+	CALL	BDOS
+	POP	HL
+	OR	A
+	SCF
+	JR	NZ,INKEY1
+	PUSH	HL
+	CALL	TICKS
+	POP	DE
+	SBC	HL,DE
+	EX	DE,HL
+	JR	C,WAIT	
+INKEY1:	POP	BC
+	RET
+;
+;CLS	- Clear screen.
+;	  (Customise to suit your VDU)
+; 	  Destroys: A,D,E,H,L,F
+;
+CLS:
+	LD	DE,CLSSTR
+	LD	C,9
+	JP	BDOS
+;
+CLSSTR:	DEFB	ESC,'[H',ESC,'[2J$'
+;
+;PCSR	- Move cursor to specified position.
+;   	  Inputs: DE = horizontal position (LHS=0)
+;                 HL = vertical position (TOP=0)
+; 	  Destroys: A,D,E,H,L,F
+;
+PCSR:	LD	B,L		; vertical = line (row)
+	CALL	CONV		; normalized and convert to decimal
+	LD	(LIN),HL	; and store into string
+	LD	B,E		; horizontal = column
+	CALL	CONV		; normalized and convert to decimal
+	LD	(COL),HL	; and store into string
+	LD	C,9		; output string command
+	LD	DE,CURS		; start of string
+	JP	BDOS		; output string to terminal
+;
+; VT100 sequence for cursor positioning
+CURS:	DEFB	27, '['
+LIN:	DEFW	0		; high byte, low byte for decimal line
+	DEFB	';'
+COL:	DEFW	0		; high byte, low byte for decimal column
+	DEFB	'H$'
+;
+; convert binary B (0 <= B < 99, not checked) into B+1 in decimal.
+; L = upper byte, H = lower byte. ready for LD (...), HL
+; destroys A, B, L, H
+; optimized for space over time
+;
+CONV:	INC	B		; normalize, home in VT100 is (1,1)
+	LD	A,'0'		; A is counter for low byte of result
+	LD	L,A		; L is counter for high byte of result
+CONVLP:	INC	A		; now B times increment AL in decimal
+	CP	'9'+1		; low byte overflow?
+	JR	NZ,CONT		; no, continue incrementing
+	LD	A,'0'		; reset low byte
+	INC	L		; and increment high byte
+CONT:	DJNZ	CONVLP		; B times
+	LD	H,A		; put low byte into right place
+	RET
+;
+;GCSR	- Return cursor coordinates.
+;   	  Outputs:  DE = X coordinate (POS)
+;                   HL = Y coordinate (VPOS)
+;  	  Destroys: A,D,E,H,L,F
+;
+GCSR:	LD	DE,0
+	LD	HL,0
+	RET
+;
+;COUT - Output a character to the console
+;   Inputs: A = character
+; Destroys: A,F
+;
+COUT:	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	LD	E,A
+	LD	C,2
+	CALL	BDOS
+	POP	HL
+	POP	DE
+	POP	BC
+	RET
+;
+	;IF	$ GT 1F0H
+	IF	$-BEGIN GT 0F0H
+	ERROR	'INSUFFICIENT SPACE'
+	ENDIF
+;
+	;ORG	1F0H
+	DEFS	0F0H - ($ - BEGIN)
+;
+OFFLO:	DEFW	0		;TIME OFFSET LO
+OFFHI:	DEFW	0		;TIME OFFSET HI
+	DEFB	80		;WIDTH
+	DEFB	'G' AND 1FH	;CURSOR UP
+	DEFB	'O' AND 1FH	;CURSOR DOWN
+	DEFB	'F' AND 1FH	;START OF LINE
+	DEFB	'N' AND 1FH	;END OF LINE
+	DEFB	'X' AND 1FH	;DELETE TO END OF LINE
+	DEFB	08H		;BACKSPACE & DELETE
+	DEFB	'U' AND 1FH	;DEL TO START OF LINE
+	DEFB	'J' AND 1FH	;CURSOR LEFT
+	DEFB	'L' AND 1FH	;CURSOR RIGHT
+	DEFB	'R' AND 1FH	;DELETE CHARACTER
+	DEFB	'Q' AND 1FH	;INS/OVR TOGGLE
+;
+FIN:	END
diff --git a/Source/Apps/BBCBASIC/eval.z80 b/Source/Apps/BBCBASIC/eval.z80
new file mode 100644
index 00000000..0e445df3
--- /dev/null
+++ b/Source/Apps/BBCBASIC/eval.z80
@@ -0,0 +1,2587 @@
+	TITLE	BBC BASIC (C) R.T.RUSSELL 1981-2024
+	NAME	('EVAL')
+;
+;BBC BASIC INTERPRETER - Z80 VERSION
+;EVALUATE EXPRESSION MODULE - "EVAL"
+;(C) COPYRIGHT R.T.RUSSELL 1981-2024
+;
+;THE NAME BBC BASIC IS USED WITH THE PERMISSION
+;OF THE BRITISH BROADCASTING CORPORATION AND IS
+;NOT TRANSFERRABLE TO A FORKED OR DERIVED WORK.
+;
+;VERSION 2.3, 07-05-1984
+;VERSION 3.0, 08-03-1987
+;VERSION 5.0, 14-05-2024
+;
+;BINARY FLOATING POINT REPRESENTATION:
+; 32 BIT SIGN-MAGNITUDE NORMALIZED MANTISSA
+; 8 BIT EXCESS-128 SIGNED EXPONENT
+; SIGN BIT REPLACES MANTISSA MSB (IMPLIED "1")
+; MANTISSA=0 & EXPONENT=0 IMPLIES VALUE IS ZERO.
+;
+;BINARY INTEGER REPRESENTATION:
+; 32 BIT 2'S-COMPLEMENT SIGNED INTEGER
+; "EXPONENT" BYTE = 0 (WHEN PRESENT)
+;
+;NORMAL REGISTER ALLOCATION: MANTISSA - HLH'L'
+;                            EXPONENT - C
+;
+	GLOBAL	EXPR
+	GLOBAL	EXPRN
+	GLOBAL	EXPRI
+	GLOBAL	EXPRS
+	GLOBAL	ITEMI
+	GLOBAL	CONS
+	GLOBAL	LOADS
+	GLOBAL	VAL0
+	GLOBAL	SFIX
+	GLOBAL	STR
+	GLOBAL	HEXSTR
+	GLOBAL	LOAD4
+	GLOBAL	LOADN
+	GLOBAL	DLOAD5
+	GLOBAL	TEST
+	GLOBAL	ZERO
+	GLOBAL	COMMA
+	GLOBAL	BRAKET
+	GLOBAL	DECODE
+	GLOBAL	PUSHS
+	GLOBAL	POPS
+	GLOBAL	SEARCH
+	GLOBAL	SCP
+	GLOBAL	LETARR
+;
+	EXTRN	MUL16
+	EXTRN	ERROR
+	EXTRN	SYNTAX
+	EXTRN	CHANEL
+	EXTRN	CHNL
+	EXTRN	STOREN
+	EXTRN	STORE4
+	EXTRN	STORE5
+	EXTRN	STACCS
+	EXTRN	CHECK
+	EXTRN	USR
+	EXTRN	VAR
+	EXTRN	FN
+	EXTRN	XEQ
+	EXTRN	NXT
+	EXTRN	X14OR5
+	EXTRN	MODIFY
+	EXTRN	MODIFS
+	EXTRN	TERMQ
+;
+	EXTRN	GETVAR
+	EXTRN	LEXAN2
+	EXTRN	RANGE
+	EXTRN	GETTOP
+;
+	EXTRN	STAVAR
+	EXTRN	PAGE
+	EXTRN	LOMEM
+	EXTRN	HIMEM
+	EXTRN	RANDOM
+	EXTRN	COUNT
+	EXTRN	LISTON
+	EXTRN	PC
+	EXTRN	ERL
+	EXTRN	ERR
+	EXTRN	ACCS
+	EXTRN	ERRTXT
+	EXTRN	KEYWDS
+	EXTRN	KEYWDL
+	EXTRN	FREE
+	EXTRN	BUFFER
+;
+	EXTRN	OSRDCH
+	EXTRN	OSOPEN
+	EXTRN	OSBGET	
+	EXTRN	OSSTAT
+	EXTRN	GETCSR
+	EXTRN	GETIME
+	EXTRN	GETIMS
+	EXTRN	GETEXT
+	EXTRN	GETPTR
+	EXTRN	OSKEY
+;
+	EXTRN	POINT
+	EXTRN	ADVAL
+	EXTRN	TINTFN
+	EXTRN	MODEFN
+	EXTRN	WIDFN
+;
+	EXTRN	FPP
+;
+FUNTOK	EQU	8DH		;1st FUNCTION TOKEN
+TMOD	EQU	83H
+TLEN	EQU	0A9H
+TTO	EQU	0B8H
+TDIM	EQU	0DEH
+TEND	EQU	0E0H
+TMODE	EQU	0EBH
+TREPORT	EQU	0F6H
+TWIDTH	EQU	0FEH
+TTINT	EQU	0AH
+TBY	EQU	0FH
+;
+;TABLE OF ADDRESSES FOR FUNCTIONS:
+;
+FUNTBL:	DEFW	DECODE		;Line number
+	DEFW	OPENIN		;OPENIN
+	DEFW	PTR		;PTR
+	DEFW	PAGEV		;PAGE
+	DEFW	TIMEV		;TIME
+	DEFW	LOMEMV		;LOMEM
+	DEFW	HIMEMV		;HIMEM
+	DEFW	ABS		;ABS
+	DEFW	ACS		;ACS
+	DEFW	ADVAL		;ADVAL
+	DEFW	ASC		;ASC
+	DEFW	ASN		;ASN
+	DEFW	ATN		;ATN
+	DEFW	BGET		;BGET
+	DEFW	COS		;COS
+	DEFW	COUNTV		;COUNT
+	DEFW	DEG		;DEG
+	DEFW	ERLV		;ERL
+	DEFW	ERRV		;ERR
+	DEFW	EVAL		;EVAL
+	DEFW	EXP		;EXP
+	DEFW	EXT		;EXT
+	DEFW	ZERO		;FALSE
+	DEFW	FN		;FN
+	DEFW	GET		;GET
+	DEFW	INKEY		;INKEY
+	DEFW	INSTR		;INSTR(
+	DEFW	INT		;INT
+	DEFW	LEN		;LEN
+	DEFW	LN		;LN
+	DEFW	LOG		;LOG
+	DEFW	CPL		;NOT
+	DEFW	OPENUP		;OPENUP
+	DEFW	OPENOT		;OPENOUT
+	DEFW	PI		;PI
+	DEFW	POINT		;POINT(
+	DEFW	POS		;POS
+	DEFW	RAD		;RAD
+	DEFW	RND		;RND
+	DEFW	SGN		;SGN
+	DEFW	SIN		;SIN
+	DEFW	SQR		;SQR
+	DEFW	TAN		;TAN
+	DEFW	TOPV		;TO(P)
+	DEFW	TRUE		;TRUE
+	DEFW	USR		;USR
+	DEFW	VAL		;VAL
+	DEFW	VPOS		;VPOS
+	DEFW	CHRS		;CHR$
+	DEFW	GETS		;GET$
+	DEFW	INKEYS		;INKEY$
+	DEFW	LEFTS		;LEFT$(
+	DEFW	MIDS		;MID$(
+	DEFW	RIGHTS		;RIGHT$(
+	DEFW	STRS		;STR$
+	DEFW	STRING		;STRING$(
+	DEFW	EOF		;EOF
+	DEFW	SUM		;SUM
+;
+TCMD	EQU	FUNTOK+($-FUNTBL)/2
+;
+CR	EQU	0DH
+LF	EQU	0AH
+AND	EQU	80H
+DIV	EQU	81H
+EOR	EQU	82H
+MOD	EQU	83H
+OR	EQU	84H
+;
+SOPTBL:	DEFW	SLE		;<= (STRING)
+	DEFW	SNE		;<>
+	DEFW	SGE		;>=
+	DEFW	SLT		;<
+	DEFW	SEQ		;=
+	DEFW	SGT		;>
+;
+;EXPR - VARIABLE-TYPE EXPRESSION EVALUATION
+; Expression type is returned in A'F':
+; Numeric - A' bit 7=0, F' sign bit cleared.
+; String - A' bit 7=1, F' sign bit set.
+;Floating-point or integer result returned in HLH'L'C
+; Integer result denoted by C=0 and HLH'L' non-zero.
+;String result returned in string accumulator, DE set.
+;
+;Hierarchy is: (1) Variables, functions,
+; constants, bracketed expressions.
+; (2) ^
+; (3) * / MOD DIV
+; (4) + -
+; (5) = <> <= >= > <
+; (6) AND
+; (7) EOR OR
+;
+EXPR:	CALL	EXPR1		;GET FIRST OPERAND
+EXPR0A:	CP	EOR		;CHECK OPERATOR
+	JR	Z,EXPR0B
+	CP	OR
+	RET	NZ
+EXPR0B:	CALL	SAVE		;SAVE FIRST OPERAND
+	CALL	EXPR1		;GET SECOND OPERAND
+	CALL	DOIT		;DO OPERATION
+	JR	EXPR0A		;CONTINUE
+;
+EXPR1:	CALL	EXPR2
+EXPR1A:	CP	AND
+	RET	NZ
+	CALL	SAVE
+	CALL	EXPR2
+	CALL	DOIT
+	JR	EXPR1A
+;
+EXPR2:	CALL	EXPR3
+	CALL	RELOPQ
+	RET	NZ
+	LD	B,A
+	INC	IY		;BUMP OVER OPERATOR
+	CALL	NXT
+	CALL	RELOPQ		;COMPOUND OPERATOR?
+	JR	NZ,EXPR2B
+	INC	IY
+	CP	B
+	JR	Z,SHIFT		;SHIFT OR ==
+	ADD	A,B
+	LD	B,A
+EXPR2B:	LD	A,B
+	EX	AF,AF'
+	JP	M,EXPR2S
+	EX	AF,AF'
+	SUB	4
+	CP	'>'-4
+	JR	NZ,EXPR2C
+	ADD	A,2
+EXPR2C:	AND	0FH
+EXPR2D:	CALL	SAVE1
+	CALL	EXPR3
+	CALL	DOIT		;Must NOT be "JP DOIT"
+	RET
+;
+SHIFT:	CP	'='
+	JR	Z,EXPR2B	;==
+	CALL	NXT
+	CALL	RELOPQ
+	JR	NZ,SHIFT1
+	CP	B
+	JP	NZ,SYNTAX
+	INC	IY
+	INC	B
+SHIFT1:	LD	A,B
+	SUB	18
+	JR	EXPR2D
+;
+EXPR2S:	EX	AF,AF'
+	DEC	A
+	AND	7
+	CALL	PUSHS		;SAVE STRING ON STACK
+	PUSH	AF		;SAVE OPERATOR
+	CALL	EXPR3		;SECOND STRING
+	EX	AF,AF'
+	JP	P,MISMAT
+	POP	AF
+	LD	C,E		;LENGTH OF STRING #2
+	POP	DE
+	LD	HL,0
+	ADD	HL,SP
+	LD	B,E		;LENGTH OF STRING #1
+	PUSH	DE
+	LD	DE,ACCS
+	EX	DE,HL
+	CALL	DISPT2
+	POP	DE
+	EX	DE,HL
+	LD	H,0
+	ADD	HL,SP
+	LD	SP,HL
+	EX	DE,HL
+	XOR	A		;NUMERIC MARKER
+	LD	C,A		;INTEGER MARKER
+	EX	AF,AF'
+	LD	A,(IY)
+	RET
+;
+EXPR3:	CALL	EXPR4
+EXPR3A:	CP	'-'
+	JR	Z,EXPR3B
+	CP	'+'
+	RET	NZ
+	EX	AF,AF'
+	JP	M,EXPR3S
+	EX	AF,AF'
+EXPR3B:	CALL	SAVE
+	CALL	EXPR4
+	CALL	DOIT
+	JR	EXPR3A
+;
+EXPR3S:	EX	AF,AF'
+	INC	IY		;BUMP PAST '+'
+	CALL	PUSHS		;SAVE STRING ON STACK
+	CALL	EXPR4		;SECOND STRING
+	EX	AF,AF'
+	JP	P,MISMAT
+	LD	C,E		;C=LENGTH
+	POP	DE
+	PUSH	DE
+	LD	HL,ACCS
+	LD	D,H
+	LD	A,C
+	OR	A
+	JR	Z,EXP3S3
+	LD	B,L
+	LD	L,A		;SOURCE
+	ADD	A,E
+	LD	E,A		;DESTINATION
+	LD	A,19
+	JR	C,ERROR2	;"String too long"
+	PUSH	DE
+	DEC	E
+	DEC	L
+	LDDR			;COPY
+	POP	DE
+EXP3S3:	EXX
+	POP	BC
+	CALL	POPS		;RESTORE FROM STACK
+	EXX
+	OR	80H		;FLAG STRING
+	EX	AF,AF'
+	LD	A,(IY)
+	JR	EXPR3A
+;
+EXPR4:	CALL	EXPR5
+EXPR4A:	CP	'*'
+	JR	Z,EXPR4B
+	CP	'/'
+	JR	Z,EXPR4B
+	CP	MOD
+	JR	Z,EXPR4B
+	CP	DIV
+	RET	NZ
+EXPR4B:	CALL	SAVE
+	CALL	EXPR5
+	CALL	DOIT
+	JR	EXPR4A
+;
+EXPR5:	CALL	ITEM
+	OR	A		;TEST TYPE
+	EX	AF,AF'		;SAVE TYPE
+EXPR5A:	CALL	NXT
+	CP	'^'
+	RET	NZ
+	CALL	SAVE
+	CALL	ITEM
+	OR	A
+	EX	AF,AF'
+	CALL	DOIT
+	JR	EXPR5A
+;
+EXPRN:	CALL	EXPR
+	EX	AF,AF'
+	RET	P
+	JR	MISMAT
+;
+EXPRI:	CALL	EXPR
+	EX	AF,AF'
+	JP	P,SFIX
+	JR	MISMAT
+;
+EXPRS:	CALL	EXPR
+	EX	AF,AF'
+	RET	M
+	JR	MISMAT
+;
+NEGATE:	EXX
+	LD	A,H
+	CPL
+	LD	H,A
+	LD	A,L
+	CPL
+	LD	L,A
+	EXX
+	LD	A,H
+	CPL
+	LD	H,A
+	LD	A,L
+	CPL
+	LD	L,A
+ADD1:	EXX
+	INC	HL
+	LD	A,H
+	OR	L
+	EXX
+	LD	A,0		;NUMERIC MARKER
+	RET	NZ
+	INC	HL
+	RET
+;
+BADHEX:	LD	A,28
+ERROR2:	JP	ERROR		;"Bad HEX or binary"
+;
+ITEMI:	CALL	ITEM
+	OR	A
+	JP	P,SFIX
+	JR	MISMAT
+;
+ITEMS:	CALL	ITEM
+	OR	A
+	RET	M
+MISMAT:	LD	A,6
+	JR	ERROR2		;"Type mismatch"
+;
+ITEM1:	CALL	EXPR		;BRACKETED EXPR
+	CALL	BRAKET
+	EX	AF,AF'
+	RET
+;
+ITEMN:	CALL	ITEM
+	OR	A
+	RET	P
+	JR	MISMAT
+;
+;HEX - Get hexadecimal constant.
+;   Inputs: ASCII string at (IY)
+;  Outputs: Integer result in H'L'HL, C=0, A7=0.
+;           IY updated (points to delimiter)
+;
+HEX:	CALL	ZERO
+	CALL	HEXDIG
+	JR	C,BADHEX
+HEX1:	INC	IY
+	AND	0FH
+	LD	B,4
+HEX2:	EXX
+	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	DJNZ	HEX2
+	EXX
+	OR	L
+	LD	L,A
+	EXX
+	CALL	HEXDIG
+	JR	NC,HEX1
+	XOR	A
+	RET
+;
+;BIN - Get binary constant.
+;   Inputs: ASCII string at (IY)
+;  Outputs: Integer result in H'L'HL, C=0, A=0.
+;           IY updated (points to delimiter)
+;
+BIN:	CALL	ZERO
+	CALL	BINDIG
+	JR	C,BADHEX
+BIN1:	INC	IY
+	RR	A
+	EXX
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	CALL	BINDIG
+	JR	NC,BIN1
+	XOR	A
+	RET
+;
+;MINUS - Unary minus.
+;   Inputs: IY = text pointer
+;  Outputs: Numeric result, same type as argument.
+;           Result in H'L'HLC
+;
+MINUS:	CALL	ITEMN
+MINUS0:	DEC	C
+	INC	C
+	JR	Z,NEGATE	;ZERO/INTEGER
+	LD	A,H
+	XOR	80H		;CHANGE SIGN (FP)
+	LD	H,A
+	XOR	A		;NUMERIC MARKER
+	RET
+;
+ADDROF:	CALL	VAR
+	PUSH	HL
+	EXX
+	POP	HL
+	JP	COUNT1
+;
+;ITEM - VARIABLE TYPE NUMERIC OR STRING ITEM.
+;Item type is returned in A: Bit 7=0 numeric.
+; Bit 7=1 string.
+;Numeric item returned in HLH'L'C.
+;String item returned in string accumulator,
+; DE addresses byte after last (E=length).
+;
+ITEM:	CALL	CHECK
+	CALL	NXT
+	INC	IY
+	CP	FUNTOK
+	JR	C,ITEM0
+	CP	TCMD
+	JP	C,DISPAT	;FUNCTIONS
+	JP	EXTRAS		;DIM, END, MODE, REPORT$, WIDTH
+;
+ITEM0:	CP	':'
+	JR	NC,ITEM2	;VARIABLES 
+	CP	'0'
+	JR	NC,CON		;NUMERIC CONSTANT
+	CP	'('
+	JR	Z,ITEM1		;EXPRESSION
+	CP	'-'
+	JR	Z,MINUS		;UNARY MINUS
+	CP	'+'
+	JR	Z,ITEMN		;UNARY PLUS
+	CP	'.'
+	JR	Z,CON		;NUMERIC CONSTANT
+	CP	'&'
+	JR	Z,HEX		;HEX CONSTANT
+	CP	'%'
+	JR	Z,BIN		;BINARY CONSTANT
+	CP	'"'
+	JR	Z,CONS		;STRING CONSTANT
+	CP	TTINT
+	JP	Z,TINT		;TINT FUNCTION
+ITEM2:	CP	TMOD	
+	JP	Z,MODFUN	;MOD
+	CP	'^'
+	JR	Z,ADDROF	;^ OPERATOR
+	DEC	IY
+	CALL	GETVAR		;VARIABLE
+	JR	NZ,NOSUCH
+	BIT	6,A
+	JR	NZ,ARRAY
+	OR	A
+	JP	M,LOADS		;STRING VARIABLE
+LOADN:	BIT	2,A
+	LD	C,0
+	JR	Z,LOAD1		;BYTE VARIABLE
+	BIT	0,A
+	JR	Z,LOAD4		;INTEGER VARIABLE
+LOAD5:	LD	C,(IX+4)
+LOAD4:	EXX
+	LD	L,(IX+0)
+	LD	H,(IX+1)
+	EXX
+	LD	L,(IX+2)
+	LD	H,(IX+3)
+	RET
+;
+LOAD1:	LD	HL,0
+	EXX
+	LD	H,0
+	LD	L,(IX+0)
+	EXX
+	RET
+;
+NOSUCH:	JP	C,SYNTAX
+	LD	A,(LISTON)
+	BIT	5,A
+	LD	A,26
+	JR	NZ,ERROR0	;"No such variable"
+NOS1:	INC	IY
+	CALL	RANGE
+	JR	NC,NOS1
+	LD	IX,PC
+	XOR	A
+	LD	C,A
+	JR	LOAD4
+;
+;CON - Get unsigned numeric constant from ASCII string.
+;   Inputs: ASCII string at (IY-1)
+;  Outputs: Variable-type result in HLH'L'C
+;           IY updated (points to delimiter)
+;           A7 = 0 (numeric marker)
+;
+CON:	DEC	IY
+	PUSH	IY
+	POP	IX
+	LD	A,36
+	CALL	FPP
+	JR	C,ERROR0
+	PUSH	IX
+	POP	IY
+	XOR	A
+	RET
+;
+;CONS - Get string constant from ASCII string.
+;   Inputs: ASCII string at (IY)
+;  Outputs: Result in string accumulator.
+;           D = MS byte of ACCS, E = string length
+;           A7 = 1 (string marker)
+;           IY updated
+;
+CONS:	LD	DE,ACCS
+CONS3:	LD	A,(IY)
+	INC	IY
+	CP	'"'
+	JR	Z,CONS2
+CONS1:	LD	(DE),A
+	INC	E
+	CP	CR
+	JR	NZ,CONS3
+	LD	A,9
+ERROR0:	JP	ERROR		;"Missing """
+;
+CONS2:	LD	A,(IY)
+	CP	'"'
+	INC	IY
+	JR	Z,CONS1
+	DEC	IY
+	LD	A,80H		;STRING MARKER
+	RET
+;
+ARRAY:	LD	A,14		;'Bad use of array'
+	JP	ERROR
+;
+; ARRLEN - Get start address and number of elements of an array
+;   Inputs: HL addresses array descriptor
+;  Outputs: HL = address of first element
+;           DE = total number of elements
+;           A = 0
+; Destroys: A,B,C,D,E,H,L,flags
+;
+ARRLEN:	LD	A,(HL)		;Number of dimensions
+	INC	HL
+	OR	A
+	JR	Z,ARRAY
+	LD	DE,1
+ARLOOP:	LD	C,(HL)
+	INC	HL
+	LD	B,(HL)		;BC = size of this dimension
+	INC	HL
+	EX	DE,HL
+	PUSH	AF
+	PUSH	DE
+	CALL	MUL16		;HL=HL*BC
+	POP	DE
+	POP	AF
+	EX	DE,HL
+	DEC	A
+	JR	NZ,ARLOOP
+	RET
+;
+GETARR:	CALL	NXT
+	CALL	GETVAR
+	JR	NZ,NOSUCH
+	BIT	6,A
+	SCF
+	JR	Z,NOSUCH
+	AND	8FH
+	LD	B,A		;Type + size
+GETAR1:	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	AND	0FEH
+	OR	H
+	JR	Z,ARRAY		;Bad use of array
+	RET
+;
+GETARB:	CALL	NXT
+	CP	'('
+	JR	NZ,GETARR
+	INC	IY
+	CALL	GETARR
+	CALL	BRAKET
+	RET
+;
+DLOADN:	BIT	2,A
+	LD	B,0
+	JR	Z,DLOAD1	;BYTE VARIABLE
+	BIT	0,A
+	JR	Z,DLOAD4	;INTEGER VARIABLE
+DLOAD5:	LD	B,(IX+4)
+DLOAD4:	EXX
+	LD	E,(IX+0)
+	LD	D,(IX+1)
+	EXX
+	LD	E,(IX+2)
+	LD	D,(IX+3)
+	RET
+;
+DLOAD1:	LD	DE,0
+	EXX
+	LD	D,0
+	LD	E,(IX+0)
+	EXX
+	RET
+;
+LOADS:	LD	DE,ACCS
+	RRA
+	JR	NC,LOADS2	;FIXED STRING
+	CALL	LOAD4
+	EXX
+	LD	A,L
+	EXX
+	OR	A
+	LD	C,A
+	LD	A,80H		;STRING MARKER
+	RET	Z
+	LD	B,0
+	LDIR
+	RET
+;
+LOADS2:	LD	A,(HL)
+	LD	(DE),A
+	INC	HL
+	CP	CR
+REPDUN:	LD	A,80H		;STRING MARKER
+	RET	Z
+	INC	E
+	JR	NZ,LOADS2
+	RET			;RETURN NULL STRING
+;
+; Version 5 extensions:
+;
+EXTRAS:	CP	TMODE
+	JP	Z,MODEFN	;MODE
+	CP	TWIDTH
+	JP	Z,WIDFN		;WIDTH
+	CP	TREPORT
+	JR	Z,REPORS	;REPORT$
+	CP	TEND
+	JR	Z,ENDFUN	;END
+	CP	TDIM
+	JR	Z,DIMFUN	;DIM
+SYNERR:	JP	SYNTAX		; 'Syntax error'
+;
+; END (function)
+;
+ENDFUN:	LD	HL,(FREE)
+	JP	COUNT1
+;
+; REPORT$
+;
+REPORS:	LD	A,(IY)
+	CP	'$'
+	JR	NZ,SYNERR
+	INC	IY
+	LD	HL,(ERRTXT)
+	LD	DE,ACCS
+REPCPY:	LD	A,(HL)
+	OR	A
+	JR	Z,REPDUN
+	LDI
+	CP	160
+	JP	PE,REPCPY
+	CP	LF
+	JR	Z,REPCPY
+	DEC	E
+	PUSH	HL
+	LD	HL,KEYWDS
+	LD	BC,KEYWDL
+	CPIR
+	LD	B,160
+	CP	145
+	JP	PE,REPTOK
+	INC	B
+REPTOK:	LD	A,(HL)
+	LDI
+	CP	B
+	JP	PE,REPTOK
+	POP	HL
+	DEC	E
+	JR	REPCPY
+;
+; DIM(array()[,sub])
+;
+DIMFUN:	CALL	NXT
+	CP	'('
+	JR	NZ,DIMF0
+	INC	IY
+	CALL	DIMF0
+	CALL	BRAKET
+	RET
+;
+DIMF0:	CALL	GETARR
+	PUSH	HL
+	CALL	NXT
+	LD	E,0
+	CP	','
+	JR	NZ,DIMF1
+	INC	IY
+	CALL	EXPRI
+	EXX
+	EX	DE,HL
+	INC	E
+	DEC	E
+	JR	Z,BADSUB
+DIMF1:	POP	HL
+	LD	A,(HL)
+	INC	HL
+	CP	E
+	JR	C,BADSUB
+	DEC	E
+	JP	M,DIMF3
+	ADD	HL,DE
+	ADD	HL,DE
+	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	DEC	HL
+DIMF2:	JP	COUNT1
+
+DIMF3:	LD	L,A
+	LD	H,0
+	JR	DIMF2
+;
+BADSUB:	LD	A,15
+	JP	ERROR			;"Bad subscript"
+;
+;VARIABLE-TYPE FUNCTIONS:
+;
+;Result returned in HLH'L'C (floating point)
+;Result returned in HLH'L' (C=0) (integer)
+;Result returned in string accumulator & DE (string)
+;All registers destroyed.
+;IY (text pointer) updated.
+;Bit 7 of A indicates type: 0 = numeric, 1 = string.
+;
+;
+;POS - horizontal cursor position.
+;VPOS - vertical cursor position.
+;EOF - return status of file.
+;BGET - read byte from file.
+;INKEY - as GET but wait only n centiseconds.
+;GET - wait for keypress and return ASCII value.
+;GET(n) - input from Z80 port n.
+;ASC - ASCII value of string.
+;LEN - length of string.
+;LOMEM - location of dynamic variables.
+;HIMEM - top of available RAM.
+;PAGE - start of current text page.
+;TOP - address of first free byte after program.
+;ERL - line number where last error occurred.
+;ERR - number of last error.
+;COUNT - number of printing characters since CR.
+;Results are integer numeric.
+;
+TINT:	CALL	TINTFN
+	JR	COUNT1
+POS:	CALL	GETCSR
+	EX	DE,HL
+	JR	COUNT1
+VPOS:	CALL	GETCSR
+	JR	COUNT1
+EOF:	CALL	CHANEL
+	CALL	OSSTAT
+	JP	Z,TRUE
+	JP	ZERO
+BGET:	CALL	CHANEL		;CHANNEL NUMBER
+	CALL	OSBGET
+	LD	L,A
+	JR	COUNT0
+INKEY:	CALL	INKEYS
+	JR	ASC0
+GET:	CALL	NXT
+	CP	'('
+	JR	NZ,GET0
+	CALL	ITEMI		;PORT ADDRESS
+	EXX
+	LD	B,H
+	LD	C,L
+	IN	L,(C)		;INPUT FROM PORT BC
+	JR	COUNT0
+GET0:	CALL	GETS
+	JR	ASC1
+ASC:	CALL	ITEMS
+ASC0:	XOR	A
+	CP	E
+	JP	Z,TRUE		;NULL STRING
+ASC1:	LD	HL,(ACCS)
+	JR	COUNT0
+LEN:	CALL	ITEMS
+	EX	DE,HL
+	JR	COUNT0
+LOMEMV:	LD	HL,(LOMEM)
+	JR	COUNT1
+HIMEMV:	LD	HL,(HIMEM)
+	JR	COUNT1
+PAGEV:	LD	HL,(PAGE)
+	JR	COUNT1
+TOPV:	LD	A,(IY)
+	INC	IY		;SKIP "P"
+	CP	'P'
+	JP	NZ,SYNTAX	;"Syntax Error"
+	CALL	GETTOP
+	JR	COUNT1
+ERLV:	LD	HL,(ERL)
+	JR	COUNT1
+ERRV:	LD	HL,(ERR)
+	JR	COUNT0
+COUNTV:	LD	HL,(COUNT)
+COUNT0:	LD	H,0
+COUNT1:	EXX
+	XOR	A
+	LD	C,A		;INTEGER MARKER
+	LD	H,A
+	LD	L,A
+	RET
+;
+;OPENIN - Open a file for reading.
+;OPENOUT - Open a file for writing.
+;OPENUP - Open a file for reading or writing.
+;Result is integer channel number (0 if error)
+;
+OPENOT:	XOR	A
+	DEFB	21H		;SKIP NEXT 2 BYTES
+OPENUP:	LD	A,2
+	DEFB	21H		;SKIP NEXT 2 BYTES
+OPENIN:	LD	A,1
+	PUSH	AF		;SAVE OPEN TYPE
+	CALL	ITEMS		;FILENAME
+	LD	A,CR
+	LD	(DE),A
+	POP	AF		;RESTORE OPEN TYPE
+	ADD	A,-1		;AFFECT FLAGS
+	LD	HL,ACCS
+	CALL	OSOPEN
+	LD	L,A
+	JR	COUNT0
+;
+;EXT - Return length of file.
+;PTR - Return current file pointer.
+;Results are integer numeric.
+;
+EXT:	CALL	CHANEL
+	CALL	GETEXT
+	JR	TIME0
+;
+PTR:	CALL	CHANEL
+	CALL	GETPTR
+	JR	TIME0
+;
+;TIME - Return current value of elapsed time.
+;Result is integer numeric.
+;
+TIMEV:	LD	A,(IY)
+	CP	'$'
+	JR	Z,TIMEVS
+	CALL	GETIME
+TIME0:	PUSH	DE
+	EXX
+	POP	HL
+	XOR	A
+	LD	C,A
+	RET
+;
+;TIME$ - Return date/time string.
+;Result is string
+;
+TIMEVS:	INC	IY		;SKIP $
+	CALL	GETIMS
+	LD	A,80H		;MARK STRING
+	RET
+;
+;String comparison:
+;
+SLT:	CALL	SCP
+	RET	NC
+	JR	TRUE
+;
+SGT:	CALL	SCP
+	RET	Z
+	RET	C
+	JR	TRUE
+;
+SGE:	CALL	SCP
+	RET	C
+	JR	TRUE
+;
+SLE:	CALL	SCP
+	JR	Z,TRUE
+	RET	NC
+	JR	TRUE
+;
+SNE:	CALL	SCP
+	RET	Z
+	JR	TRUE
+;
+SEQ:	CALL	SCP
+	RET	NZ
+TRUE:	LD	A,-1
+	EXX
+	LD	H,A
+	LD	L,A
+	EXX
+	LD	H,A
+	LD	L,A
+	INC	A
+	LD	C,A
+	RET
+;
+;PI - Return PI (3.141592654)
+;Result is floating-point numeric.
+;
+PI:	LD	A,35
+	JR	FPP1
+;
+;ABS - Absolute value
+;Result is numeric, variable type.
+;
+ABS:	LD	A,16
+	JR	FPPN
+;
+;NOT - Complement integer.
+;Result is integer numeric.
+;
+CPL:	LD	A,26
+	JR	FPPN
+;
+;DEG - Convert radians to degrees
+;Result is floating-point numeric.
+;
+DEG:	LD	A,21
+	JR	FPPN
+;
+;RAD - Convert degrees to radians
+;Result is floating-point numeric.
+;
+RAD:	LD	A,27
+	JR	FPPN
+;
+;SGN - Return -1, 0 or +1
+;Result is integer numeric.
+;
+SGN:	LD	A,28
+	JR	FPPN
+;
+;INT - Floor function
+;Result is integer numeric.
+;
+INT:	LD	A,23
+	JR	FPPN
+;
+;SQR - square root
+;Result is floating-point numeric.
+;
+SQR:	LD	A,30
+	JR	FPPN
+;
+;TAN - Tangent function
+;Result is floating-point numeric.
+;
+TAN:	LD	A,31
+	JR	FPPN
+;
+;COS - Cosine function
+;Result is floating-point numeric.
+;
+COS:	LD	A,20
+	JR	FPPN
+;
+;SIN - Sine function
+;Result is floating-point numeric.
+;
+SIN:	LD	A,29
+	JR	FPPN
+;
+;EXP - Exponential function
+;Result is floating-point numeric.
+;
+EXP:	LD	A,22
+	JR	FPPN
+;
+;LN - Natural log.
+;Result is floating-point numeric.
+;
+LN:	LD	A,24
+	JR	FPPN
+;
+;LOG - base-10 logarithm.
+;Result is floating-point numeric.
+;
+LOG:	LD	A,25
+	JR	FPPN
+;
+;ASN - Arc-sine
+;Result is floating-point numeric.
+;
+ASN:	LD	A,18
+	JR	FPPN
+;
+;ATN - arc-tangent
+;Result is floating-point numeric.
+;
+ATN:	LD	A,19
+	JR	FPPN
+;
+;ACS - arc-cosine
+;Result is floating point numeric.
+;
+ACS:	LD	A,17
+FPPN:	PUSH	AF
+	CALL	ITEMN
+	POP	AF
+FPP1:	CALL	FPP
+	JP	C,ERROR
+	XOR	A
+	RET
+;
+;SFIX - Convert to fixed-point notation
+;
+SFIX:	LD	A,38
+	JR	FPP1
+;
+;SFLOAT - Convert to floating-point notation
+;
+SFLOAT:	LD	A,39
+	JR	FPP1
+;
+;VAL - Return numeric value of string.
+;Result is variable type numeric.
+;
+VAL:	CALL	ITEMS
+VAL0:	XOR	A
+	LD	(DE),A
+	LD	IX,ACCS
+	LD	A,36
+	JR	FPP1
+;
+;EVAL - Pass string to expression evaluator.
+;Result is variable type (numeric or string).
+;
+EVAL:	CALL	ITEMS
+	LD	A,CR
+	LD	(DE),A
+	PUSH	IY
+	LD	DE,ACCS
+	LD	IY,ACCS
+	LD	C,0
+	CALL	LEXAN2		;TOKENISE
+	LD	(DE),A
+	INC	DE
+	XOR	A
+	CALL	PUSHS		;PUT ON STACK
+	LD	IY,2
+	ADD	IY,SP
+	CALL	EXPR
+	POP	IY
+	ADD	IY,SP
+	LD	SP,IY		;ADJUST STACK POINTER
+	POP	IY
+	EX	AF,AF'
+	RET
+;
+;RND - Random number function.
+; RND gives random integer 0-&FFFFFFFF
+; RND(-n) seeds random number & returns -n.
+; RND(0) returns last value in RND(1) form.
+; RND(1) returns floating-point 0-0.99999999.
+; RND(n) returns random integer 1-n.
+;
+RND:	LD	IX,RANDOM
+	CALL	NXT
+	CP	'('
+	JR	Z,RND5		;ARGUMENT FOLLOWS
+	CALL	LOAD5
+RND1:	RR	C
+	LD	B,32
+RND2:	EXX			;CALCULATE NEXT
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	BIT	3,L
+	JR	Z,RND3
+	CCF
+RND3:	DJNZ	RND2
+RND4:	RL	C		;SAVE CARRY
+	CALL	STORE5		;STORE NEW NUMBER
+	XOR	A
+	LD	C,A
+	RET
+RND5:	CALL	ITEMI
+	LD	IX,RANDOM
+	BIT	7,H		;NEGATIVE?
+	SCF
+	JR	NZ,RND4		;SEED
+	CALL	TEST
+	PUSH	AF
+	LD	B,C
+	EX	DE,HL
+	EXX
+	EX	DE,HL
+	CALL	LOAD5
+	CALL	NZ,RND1		;NEXT IF NON-ZERO
+	EXX			;SCRAMBLE (CARE!)
+	LD	C,7FH
+RND6:	BIT	7,H		;FLOAT
+	JR	NZ,RND7
+	EXX
+	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	DEC	C
+	JR	NZ,RND6
+RND7:	RES	7,H		;POSITIVE 0-0.999999
+	POP	AF
+	RET	Z		;ZERO ARGUMENT
+	EXX
+	LD	A,E
+	DEC	A
+	OR	D
+	EXX
+	OR	E
+	OR	D
+	RET	Z		;ARGUMENT=1
+	LD	B,0		;INTEGER MARKER
+	LD	A,10
+	CALL	FPP		;MULTIPLY
+	JP	C,ERROR
+	CALL	SFIX
+	JP	ADD1
+;
+;SUMLEN(array())
+;
+SUMLEN:	INC	IY		;Skip LEN
+	CALL	GETARB
+	BIT	7,B
+	JP	Z,MISMAT	;Type mismatch
+	CALL	ARRLEN
+	PUSH	HL
+	POP	IX		;IX addresses array
+	XOR	A
+	LD	H,A
+	LD	L,A
+	LD	B,A
+SUMLN1:	LD	C,(IX)
+	ADD	HL,BC
+	LD	C,4
+	ADD	IX,BC
+	DEC	DE		;Count elements
+	LD	A,D
+	OR	E
+	JR	NZ,SUMLN1
+	JP	COUNT1
+;
+;SUM(array())
+;
+SUM:	CALL	NXT
+	CP	TLEN
+	JR	Z,SUMLEN
+	CALL	GETARB
+	BIT	7,B
+	JR	NZ,SUMSTR
+	PUSH	BC
+	CALL	ARRLEN
+	PUSH	HL
+	POP	IX		;IX addresses array
+	CALL	ZERO
+	POP	AF		;A = element size
+SUMUP:	PUSH	DE
+	PUSH	AF
+	CALL	DLOADN
+	LD	A,11 
+	CALL	FPP
+	JP	C,ERROR
+	POP	AF
+	LD	D,0
+	LD	E,A
+	ADD	IX,DE		;Bump to next element
+	POP	DE
+	DEC	DE		;Count elements
+	LD	B,A
+	LD	A,D
+	OR	E
+	LD	A,B
+	JR	NZ,SUMUP
+	RET
+;
+;SUM(string array)
+;
+SUMSTR:	CALL	ARRLEN
+	PUSH	HL
+	POP	IX		;IX addresses array
+	EX	DE,HL
+	LD	DE,ACCS
+	LD	B,0
+SUMST1:	PUSH	HL
+	LD	C,(IX)
+	LD	A,C
+	OR	A
+	JR	Z,SUMST2
+	ADD	A,E
+	LD	A,19
+	JP	C,ERROR		;"String too long"
+	LD	L,(IX+2)
+	LD	H,(IX+3)
+	LDIR
+SUMST2:	POP	HL
+	LD	C,4
+	ADD	IX,BC
+	DEC	HL		;Count elements
+	LD	A,H
+	OR	L
+	JR	NZ,SUMST1
+	OR	80H
+	RET	
+;
+;MOD(array())
+;
+MODFUN:	CALL	GETARB
+	BIT	7,B
+	JP	NZ,MISMAT
+	PUSH	BC
+	CALL	ARRLEN
+	PUSH	HL
+	POP	IX		;IX addresses array
+	CALL	ZERO
+	POP	AF		;A = element size
+MODUP:	PUSH	DE
+	PUSH	AF
+	PUSH	BC
+	PUSH	HL
+	EXX
+	PUSH	HL
+	EXX
+	CALL	LOADN
+	XOR	A
+	LD	B,A
+	LD	D,A
+	LD	E,A
+	EXX
+	LD	D,A
+	LD	E,2
+	EXX
+	LD	A,14
+	PUSH	IX
+	CALL	FPP		;Square
+	POP	IX
+	JP	C,ERROR
+	EXX
+	EX	DE,HL
+	POP	HL
+	EXX
+	EX	DE,HL
+	POP	HL
+	LD	A,C
+	POP	BC
+	LD	B,A
+	LD	A,11 
+	CALL	FPP		;Accumulate
+	JP	C,ERROR
+	POP	AF
+	LD	D,0
+	LD	E,A
+	ADD	IX,DE		;Bump to next element
+	POP	DE
+	DEC	DE		;Count elements
+	LD	B,A
+	LD	A,D
+	OR	E
+	LD	A,B
+	JR	NZ,MODUP
+	LD	A,30
+	CALL	FPP		;Square root
+	XOR	A
+	RET
+;
+;INSTR - String search.
+;Result is integer numeric.
+;
+INSTR:	CALL	EXPRS		;STRING TO SEARCH
+	CALL	COMMA
+	CALL	PUSHS		;SAVE STRING ON STACK
+	CALL	EXPRS		;SUB-STRING
+	POP	BC
+	LD	HL,0
+	ADD	HL,SP		;HL ADDRESSES MAIN
+	PUSH	BC		;C = MAIN STRING LENGTH
+	LD	B,E		;B = SUB-STRING LENGTH
+	CALL	NXT
+	CP	','
+	LD	A,0
+	JR	NZ,INSTR1
+	INC	IY		;SKIP COMMA
+	PUSH	BC		;SAVE LENGTHS
+	PUSH	HL		;SAVE MAIN ADDRESS
+	CALL	PUSHS
+	CALL	EXPRI
+	POP	BC
+	CALL	POPS
+	POP	HL		;RESTORE MAIN ADDRESS
+	POP	BC		;RESTORE LENGTHS
+	EXX
+	LD	A,L
+	EXX
+	OR	A
+	JR	Z,INSTR1
+	DEC	A
+INSTR1:	LD	DE,ACCS		;DE ADDRESSES SUB
+	CALL	SEARCH
+	POP	DE
+	JR	Z,INSTR2	;N.B. CARRY CLEARED
+	SBC	HL,HL
+	ADD	HL,SP
+INSTR2:	SBC	HL,SP
+	EX	DE,HL
+	LD	H,0
+	ADD	HL,SP
+	LD	SP,HL
+	EX	DE,HL
+	CALL	BRAKET
+	JP	COUNT1
+;
+;SEARCH - Search string for sub-string
+;   Inputs: Main string at HL length C
+;           Sub-string at DE length B
+;           Starting offset A
+;  Outputs: NZ - not found
+;           Z - found at location HL-1
+;           Carry always cleared
+;
+SEARCH:	PUSH	BC
+	LD	B,0
+	LD	C,A
+	ADD	HL,BC		;NEW START ADDRESS
+	POP	BC
+	SUB	C
+	JR	NC,SRCH4
+	NEG
+	LD	C,A		;REMAINING LENGTH
+SRCH1:	LD	A,(DE)
+	PUSH	BC
+	LD	B,0
+	CPIR			;FIND FIRST CHARACTER
+	LD	A,C
+	POP	BC
+	JR	NZ,SRCH4
+	LD	C,A
+	DEC	B		;Bug fix
+	CP	B		;Bug fix
+	INC	B		;Bug fix
+	JR	C,SRCH4		;Bug fix
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	DEC	B
+	JR	Z,SRCH3		;FOUND !
+SRCH2:	INC	DE
+	LD	A,(DE)
+	CP	(HL)
+	JR	NZ,SRCH3
+	INC	HL
+	DJNZ	SRCH2
+SRCH3:	POP	HL
+	POP	DE
+	POP	BC
+	JR	NZ,SRCH1
+	XOR	A		;Z, NC
+	RET			;FOUND
+;
+SRCH4:	OR	0FFH		;NZ, NC
+	RET			;NOT FOUND
+;
+;CHR$ - Return character with given ASCII value.
+;Result is string.
+;
+CHRS:	CALL	ITEMI
+	EXX
+	LD	A,L
+	JR	GET1
+;
+;GET$ - Return key pressed as string, or read from file
+;Result is string.
+;
+GETS:	CALL	NXT
+	CP	'#'
+	JR	Z,GET2
+	CALL	OSRDCH
+GET1:	SCF
+	JR	INKEY1
+;
+GET2:	CALL	CHNL		;File channel
+	CALL	NXT
+	CP	TBY
+	JR	Z,GET3
+	CP	TTO
+	JR	NZ,GET4
+GET3:	INC	IY
+	PUSH	AF
+	PUSH	DE
+	CALL	ITEMI		;Get BY or TO qualifier
+	EXX
+	LD	B,H
+	LD	C,L
+	POP	DE
+	POP	AF
+GET4:	LD	HL,ACCS
+	CP	TTO
+	JR	Z,GET5
+	LD	D,C		;Maximum count
+	LD	BC,100H		;Default
+	CP	TBY
+	JR	Z,GET6
+GET5:	LD	D,0
+	SET	1,B		;Flag no count
+GET6:	PUSH	BC
+	CALL	OSBGET
+	POP	BC
+	JR	C,GET9		;EOF
+	BIT	1,B
+	JR	Z,GET8
+	CP	C
+	JR	Z,GET9		;NUL (or supplied term)
+	BIT	7,B
+	JR	NZ,GET7
+	BIT	0,B
+	JR	Z,GET8
+	CP	LF
+	JR	Z,GET9		;LF
+GET7:	CP	CR
+	JR	Z,GET9		;CR
+GET8:	LD	(HL),A
+	INC	L
+	DEC	D
+	JR	NZ,GET6
+GET9:	EX	DE,HL
+	LD	A,80H
+	RET
+;
+;INKEY$ - Wait up to n centiseconds for keypress.
+; Return key pressed as string or null
+; string if time elapsed.
+;Result is string.
+;
+INKEYS:	CALL	ITEMI
+	EXX
+	CALL	OSKEY
+INKEY1:	LD	DE,ACCS
+	LD	(DE),A
+	LD	A,80H
+	RET	NC
+	INC	E
+	RET
+;
+;MID$ - Return sub-string.
+;Result is string.
+;
+MIDS:	CALL	EXPRS
+	CALL	COMMA
+	CALL	PUSHS		;SAVE STRING ON STACK
+	CALL	EXPRI
+	POP	BC
+	CALL	POPS
+	EXX
+	LD	A,L
+	EXX
+	OR	A
+	JR	Z,MIDS1
+	DEC	A
+	LD	L,A
+	SUB	E
+	LD	E,0
+	JR	NC,MIDS1
+	NEG
+	LD	C,A
+	CALL	RIGHT1
+MIDS1:	CALL	NXT
+	CP	','
+	JR	Z,LEFT1
+	CALL	BRAKET
+	LD	A,80H
+	RET
+;
+;LEFT$ - Return left part of string.
+;Carry cleared if entire string returned.
+;Result is string.
+;
+LEFTS:	CALL	EXPRS
+	CALL	NXT
+	CP	','
+	JR	Z,LEFT1
+	CALL	BRAKET
+	LD	A,E
+	OR	A
+	JR	Z,LEFT3
+	DEC	E
+	JR	LEFT3
+;
+LEFT1:	INC	IY
+	CALL	PUSHS		;SAVE STRING ON STACK
+	CALL	EXPRI
+	POP	BC
+	CALL	POPS
+	CALL	BRAKET
+	EXX
+	LD	A,L
+	EXX
+	CP	E
+	JR	NC,LEFT3
+	LD	L,E		;FOR RIGHT$
+LEFT2:	LD	E,A
+LEFT3:	LD	A,80H		;STRING MARKER
+	RET
+;
+;RIGHT$ - Return right part of string.
+;Result is string.
+;
+RIGHTS:	CALL	EXPRS
+	CALL	NXT
+	CP	','
+	JR	Z,RIGHT0
+	CALL	BRAKET
+	LD	A,E
+	OR	A
+	JR	Z,LEFT3
+	DEC	A
+	LD	C,1
+	JR	RIGHT2
+;
+RIGHT0:	CALL	LEFT1
+	RET	NC
+	INC	E
+	DEC	E
+	RET	Z
+	LD	C,E
+	LD	A,L
+	SUB	E
+RIGHT2:	LD	L,A
+RIGHT1:	LD	B,0
+	LD	H,D
+	LD	E,B
+	LDIR			;MOVE
+	LD	A,80H
+	RET
+;
+;STRING$ - Return n concatenations of a string.
+;Result is string.
+;
+STRING:	CALL	EXPRI
+	CALL	COMMA
+	EXX
+	LD	A,L
+	EXX
+	PUSH	AF
+	CALL	EXPRS
+	CALL	BRAKET
+	POP	AF
+	OR	A
+	JR	Z,LEFT2		;N=0
+	DEC	A
+	LD	C,A
+	LD	A,80H		;STRING MARKER
+	RET	Z
+	INC	E
+	DEC	E
+	RET	Z		;NULL STRING
+	LD	B,E
+	LD	H,D
+	LD	L,0
+STRIN1:	PUSH	BC
+STRIN2:	LD	A,(HL)
+	INC	HL
+	LD	(DE),A
+	INC	E
+	LD	A,19
+	JP	Z,ERROR		;"String too long"
+	DJNZ	STRIN2
+	POP	BC
+	DEC	C
+	JR	NZ,STRIN1
+	LD	A,80H
+	RET
+;
+;SUBROUTINES
+;
+;TEST - Test HLH'L' for zero
+;  Outputs: Z-flag set & A=0 if zero
+; Destroys: A,F
+;
+TEST:	LD	A,H
+	OR	L
+	EXX
+	OR	H
+	OR	L
+	EXX
+	RET
+;
+;DECODE - Decode line number in pseudo-binary.
+;   Inputs: IY = Text pointer.
+;  Outputs: HL=0, H'L'=line number, C=0.
+; Destroys: A,C,H,L,H',L',IY,F
+;
+DECODE:	EXX
+	LD	A,(IY)
+	INC	IY
+	RLA
+	RLA
+	LD	H,A
+	AND	0C0H
+	XOR	(IY)
+	INC	IY
+	LD	L,A
+	LD	A,H
+	RLA
+	RLA
+	AND	0C0H
+	XOR	(IY)
+	INC	IY
+	LD	H,A
+	EXX
+	XOR	A
+	LD	C,A
+	LD	H,A
+	LD	L,A
+	RET
+;
+;HEXSTR - convert numeric value to HEX string.
+;   Inputs: HLH'L'C = integer or floating-point number
+;  Outputs: String in string accumulator.
+;           E = string length. D = ACCS/256
+;
+HEXSTS:	INC	IY		;SKIP TILDE
+	CALL	ITEMN
+	CALL	HEXSTR
+	LD	A,80H
+	RET
+;
+HEXSTR:	CALL	SFIX
+	LD	BC,8
+	LD	DE,ACCS
+HEXST1:	PUSH	BC
+	LD	B,4
+	XOR	A
+HEXST2:	EXX
+	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	RLA
+	DJNZ	HEXST2
+	POP	BC
+	DEC	C
+	RET	M
+	JR	Z,HEXST3
+	OR	A
+	JR	NZ,HEXST3
+	CP	B
+	JR	Z,HEXST1
+HEXST3:	ADD	A,90H
+	DAA
+	ADC	A,40H
+	DAA
+	LD	(DE),A
+	INC	DE
+	LD	B,A
+	JR	HEXST1
+;
+;Function STR - convert numeric value to ASCII string.
+;   Inputs: HLH'L'C = integer or floating-point number.
+;  Outputs: String in string accumulator.
+;           E = length, D = ACCS/256
+;           A = 80H (type=string)
+;
+;First normalise for decimal output:
+;
+STRS:	CALL	NXT
+	CP	'~'
+	JR	Z,HEXSTS
+	CALL	ITEMN
+	LD	IX,STAVAR
+	LD	A,(IX+3)
+	OR	A
+	LD	IX,G9-1		;G9 FORMAT
+	JR	Z,STR0
+STR:	LD	IX,STAVAR
+STR0:	LD	DE,ACCS
+	LD	A,37
+	CALL	FPP
+	JP	C,ERROR
+	BIT	0,(IX+2)
+STR1:	LD	A,80H		;STRING MARKER
+	RET	Z
+	LD	A,C
+	ADD	A,4
+STR2:	CP	E
+	JR	Z,STR1
+	EX	DE,HL
+	LD	(HL),' '	;TRAILING SPACE
+	INC	HL
+	EX	DE,HL
+	JR	STR2
+;
+G9:	DEFW	9
+;
+;STRING COMPARE
+;Compare string (DE) length B with string (HL) length C.
+;Result preset to false.
+;
+SCP:	CALL	SCP0
+ZERO:	LD	A,0
+	EXX
+	LD	H,A
+	LD	L,A
+	EXX
+	LD	H,A
+	LD	L,A
+	LD	C,A
+	RET
+;
+SCP0:	INC	B
+	INC	C
+SCP1:	DEC	B
+	JR	Z,SCP2
+	DEC	C
+	JR	Z,SCP3
+	LD	A,(DE)
+	CP	(HL)
+	RET	NZ
+	INC	DE
+	INC	HL
+	JR	SCP1
+SCP2:	OR	A
+	DEC	C
+	RET	Z
+	SCF
+	RET
+SCP3:	OR	A
+	INC	C
+	RET
+;
+;PUSH$ - SAVE STRING ON STACK.
+;   Inputs: String in string accumulator.
+;           E = string length.
+;           A - saved on stack.
+; Destroys: B,C,D,E,H,L,IX,SP,F
+;
+PUSHS:	LD	HL,ACCS
+	CALL	CHECK
+	POP	IX		;RETURN ADDRESS
+	OR	A		;CLEAR CARRY
+	LD	D,H
+	LD	C,E
+	SBC	HL,DE
+	ADD	HL,SP
+	LD	SP,HL
+	LD	B,A
+	PUSH	BC
+	JR	Z,PUSHS1	;ZERO LENGTH
+	EX	DE,HL
+	LD	B,0
+	LD	L,B		;L=0
+	LDIR			;COPY TO STACK
+	CALL	CHECK
+PUSHS1:	JP	(IX)		;"RETURN"
+;
+;POP$ - RESTORE STRING FROM STACK.
+;   Inputs: C = string length.
+;  Outputs: String in string accumulator.
+;           E = string length.
+; Destroys: B,C,D,E,H,L,IX,SP,F
+;
+POPS:	POP	IX		;RETURN ADDRESS
+	LD	HL,0
+	LD	B,H		;B=0
+	ADD	HL,SP
+	LD	DE,ACCS
+	INC	C
+	DEC	C
+	JR	Z,POPS1		;ZERO LENGTH
+	LDIR			;COPY FROM STACK
+POPS1:	LD	SP,HL
+	JP	(IX)		;"RETURN"
+;
+BINDIG:	LD	A,(IY)
+	CP	'0'
+	RET	C
+	CP	'1'+1
+	CCF
+	RET	C
+	SUB	'0'
+	RET
+;
+HEXDIG:	LD	A,(IY)
+	CP	'0'
+	RET	C
+	CP	'9'+1
+	CCF
+	RET	NC
+	CP	'A'
+	RET	C
+	SUB	'A'-10
+	CP	16
+	CCF
+	RET
+;
+RELOPQ:	CP	'>'
+	RET	NC
+	CP	'='
+	RET	NC
+	CP	'<'
+	RET
+;
+COMMA:	CALL	NXT
+	INC	IY
+	CP	','
+	RET	Z
+	LD	A,5
+	JR	ERROR1		;"Missing ,"
+;
+BRAKET:	CALL	NXT
+	INC	IY
+	CP	')'
+	RET	Z
+	LD	A,27
+ERROR1:	JP	ERROR		;"Missing )"
+;
+SAVE:	INC	IY
+	AND	0FH
+SAVE1:	EX	AF,AF'
+	JP	M,MISMAT
+	EX	AF,AF'
+	EX	(SP),HL
+	EXX
+	PUSH	HL
+	EXX
+	PUSH	AF
+	PUSH	BC
+	JP	(HL)
+;
+DOIT:	EX	AF,AF'
+	JP	M,MISMAT
+	EXX
+	POP	BC		;RETURN ADDRESS
+	EXX
+	LD	A,C
+	POP	BC
+	LD	B,A
+	POP	AF		;OPERATOR
+	EXX
+	EX	DE,HL
+	POP	HL
+	EXX
+	EX	DE,HL
+	POP	HL
+	EXX
+	PUSH	BC
+	EXX
+	CALL	FPP
+	JR	C,ERROR1
+	XOR	A
+	EX	AF,AF'		;TYPE
+	LD	A,(IY)
+	RET
+;
+DISPT2:	PUSH	HL
+	LD	HL,SOPTBL
+	JR	DISPT0
+;
+DISPAT:	PUSH	HL
+	SUB	FUNTOK
+	LD	HL,FUNTBL
+DISPT0:	PUSH	BC
+	ADD	A,A
+	LD	C,A
+	LD	B,0
+	ADD	HL,BC
+	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	POP	BC
+	EX	(SP),HL
+	RET			;OFF TO ROUTINE
+;
+STOREA:	LD	A,D
+	PUSH	DE
+	PUSH	HL
+	EX	(SP),IX
+	OR	A
+	JP	M,STORA1
+	CALL	LOADN
+	EX	(SP),IX
+	CALL	MODIFY
+	POP	HL
+	POP	DE
+	LD	C,D
+	LD	B,0
+	RET
+;
+STORA1:	PUSH	DE
+	CALL	LOADS
+	POP	HL
+	EX	(SP),IX
+	CALL	MODIFS
+	POP	HL
+	POP	DE
+	LD	BC,4
+	RET
+;
+; Assign to whole array:
+; array1() = array expression
+; array1() = n1,n2,n3,n4...
+; array1() = n (n copied into all elements)
+;
+; Inputs: D = type (65, 68, 69, 193)
+;         E = opcode ('=' for store, '+','-' etc. for modify)
+;         HL = IX = VARPTR
+;         IY = text pointer
+;
+LETARR:	RES	6,D		;Lose array marker
+	PUSH	DE		;Save type & opcode
+	CALL	GETAR1		;Get and check indirect link
+	CALL	ARRLEN		;DE = elements, HL addresses first
+	POP	BC
+	LD	A,B		;A = type
+	PUSH	DE
+	PUSH	BC
+	PUSH	HL
+	CALL	X14OR5		;DE = size in bytes
+	LD	B,D
+	LD	C,E
+	POP	IX
+	POP	DE
+;
+; (SP) = number of elements
+; BC = size in bytes
+; DE = type & opcode
+; IX = address of first element
+;
+; allocate space on stack and zero it:
+;
+	XOR	A		;Clear carry and zero error code
+	LD	HL,0
+	ADD	HL,SP		;HL = SP
+	SBC	HL,BC
+	JP	C,ERROR		;'No room'
+	PUSH	BC
+	LD	BC,(FREE)
+	INC	B		;Safety margin
+	SBC	HL,BC
+	ADD	HL,BC
+	POP	BC
+	JP	C,ERROR		;'No room'
+	LD	SP,HL	
+LETA0:	LD	(HL),0
+	INC	HL
+	DEC	BC
+	LD	A,B
+	OR	C
+	JR	NZ,LETA0	;Clear allocated stack
+	LD	C,(HL)
+	INC	HL
+	LD	B,(HL)
+	LD	H,A
+	LD	L,A
+	ADD	HL,SP
+;
+;	CALL	NXT
+;	CP	TEVAL		;;EVAL not currently supported
+;
+	CALL	EXPRA
+	LD	SP,HL		;Update stack pointer
+	POP	BC		;Level stack
+	JP	XEQ
+;
+; EXPRA - Evaluate array expression, strictly left-to-right;
+; Note: String array arithmetic (concatenation) is not supported
+; because it would require a way of recovering freed string space.
+;
+;   Inputs: BC = number of elements
+;           DE = type & opcode
+;           HL = address of temporary stack space
+;           IX = address of first element of array
+;  Outputs: HL = value to set stack pointer to
+;
+EXPRA:	LD	A,'='
+	DEC	IY
+EXPRA1:	INC	IY
+	PUSH	DE
+	PUSH	BC
+	PUSH	HL
+	PUSH	IX
+	LD	E,A		;For unary minus
+	CALL	NXT
+	CALL	ITEMA
+	POP	IX
+	POP	HL
+	POP	BC
+	POP	DE
+	CALL	NXT
+	CP	','		;List?
+	JR	Z,EXPRA3
+	CALL	TERMQ
+	JR	NZ,EXPRA1
+;
+; Update destination array from stack:
+;
+EXPRA2:	PUSH	BC
+	CALL	STOREA		;(IX) <- (HL)
+	ADD	HL,BC
+	ADD	IX,BC
+	POP	BC
+	DEC	BC
+	LD	A,B
+	OR	C
+	JR	NZ,EXPRA2
+	RET
+;
+; Update destination array from list (n.b. not transferred via stack):
+;
+EXPRA3:	PUSH	BC
+	CALL	STOREA		;(IX) <- (HL)
+EXPRA4:	INC	IY		;Bump past comma
+	ADD	HL,BC
+	ADD	IX,BC
+	POP	BC
+	DEC	BC
+	LD	A,B
+	OR	C
+	RET	Z
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	PUSH	IX
+	BIT	7,D
+	JR	NZ,EXPRA5
+	PUSH	DE
+	CALL	EXPRN
+	POP	DE
+	POP	IX
+	PUSH	IX
+	CALL	MODIFY
+	JR	EXPRA6
+;
+EXPRA5:	PUSH	DE
+	CALL	EXPRS
+	POP	HL
+	POP	IX
+	PUSH	IX
+	CALL	MODIFS
+EXPRA6:	POP	IX
+	POP	HL
+	POP	DE
+	LD	BC,4
+	BIT	7,D
+	JR	NZ,EXPRA7
+	LD	C,D
+EXPRA7:	CALL	NXT
+	CP	','
+	JR	Z,EXPRA4
+	POP	DE
+EXPRA8:	ADD	HL,BC		;Skip remaining elements
+	DEC	DE
+	LD	A,D
+	OR	E
+	JR	NZ,EXPRA8
+	RET
+;
+; ITEMA: evaluate and operate on array item
+;   Inputs: A = operator
+;           D = type
+;           E = operator
+;           BC = number of elements
+;           HL = pointer to destination on stack
+;           IY = text pointer
+;  Outputs: IY updated
+; Destroys: Everything except SP
+;
+ITEMA:	CP	'-'
+	JR	NZ,ITEMA1	;Not unary minus
+	LD	A,E
+	CP	'='
+	JR	NZ,ITEMA1	;Not unary minus
+	INC	IY		;Bump past '-'
+	CALL	NXT
+	LD	E,'-'		;Unary minus
+ITEMA1:	PUSH	HL		;Pointer to destination
+	PUSH	BC		;Number of elements
+	PUSH	DE		;Type and previous operator
+	PUSH	IY		;In case normal expression
+	CALL	GETVAR
+	JR	NZ,ITEMA4	;Non-array expression
+	BIT	6,A
+	JR	Z,ITEMA4	;Not a whole array
+	POP	BC		;Junk saved text pointer
+	POP	DE		;Type & operator
+	RES	6,A
+	CP	D
+	JP	NZ,MISMAT	;'Type mismatch'
+	PUSH	DE		;Save type & operator again
+	CALL	GETAR1
+	CALL	ARRLEN
+	LD	B,D		;BC = number of elements
+	LD	C,E
+	POP	DE		;Restore type & operator
+	EX	(SP),HL
+	CALL	NXT
+	POP	IX		;Pointer to source
+	CP	'.'
+	JP	Z,ARRDOT	;Dot product
+	OR	A
+	SBC	HL,BC		;Same number of elements?
+	JP	NZ,MISMAT	;'Type mismatch'	
+	POP	HL		;Pointer to destination
+	BIT	7,D
+	JR	NZ,ITEMA3
+;
+; Process numeric array item:
+;
+ITEMA2:	PUSH	BC
+	PUSH	HL
+	LD	A,D
+	CALL	LOADN
+	EX	(SP),IX
+	PUSH	DE
+	CALL	MODIFY
+	POP	DE
+	EX	(SP),IX
+	POP	HL
+	LD	C,D
+	LD	B,0
+	ADD	IX,BC
+	ADD	HL,BC
+	POP	BC
+	DEC	BC
+	LD	A,B
+	OR	C
+	JR	NZ,ITEMA2
+	RET
+;
+; Process string array item (just copy descriptors):
+;
+ITEMA3:	EX	DE,HL		;DE = destination
+	LD	H,B
+	LD	L,C
+	ADD	HL,HL
+	ADD	HL,HL
+	LD	B,H
+	LD	C,L
+	PUSH	IX
+	POP	HL		;HL = source
+	LDIR
+	RET
+;
+; Process numeric non-array item:
+;
+ITEMA4:	POP	IY		;Restore text pointer
+	BIT	7,D
+	JR	NZ,ITEMA5
+	CALL	EXPR4		;; should be EXP345
+	LD	A,C		;Exponent
+	POP	DE		;Type / operator
+	POP	BC		;Count
+	POP	IX
+ITEMA7:	PUSH	HL
+	PUSH	BC
+	PUSH	DE
+	EXX
+	PUSH	HL
+	EXX
+	PUSH	AF
+	LD	C,A
+	CALL	MODIFY
+	POP	AF
+	EXX
+	POP	HL
+	EXX
+	POP	DE
+	LD	C,D
+	LD	B,0
+	ADD	IX,BC
+	POP	BC
+	DEC	BC
+	SBC	HL,HL
+	SBC	HL,BC
+	POP	HL
+	JR	NZ,ITEMA7	;Copy into every element!
+	RET
+;
+; Process string non-array item:
+;
+ITEMA5:	CALL	EXPRS
+	LD	A,E
+	OR	A
+	JR	Z,ITEMA0
+	LD	HL,ACCS
+	LD	DE,BUFFER
+	LD	C,A
+	LD	B,0
+	LDIR
+ITEMA0:	POP	DE
+	POP	BC
+	POP	IX
+	EXX
+	LD	L,A
+	EXX
+	LD	DE,4
+	LD	HL,BUFFER
+ITEMA6:	CALL	STORE4
+	ADD	IX,DE
+	DEC	BC
+	LD	A,B
+	OR	C
+	JR	NZ,ITEMA6	;Copy into every element!
+	RET
+;
+; Array dot-product:
+;
+ARRDOT:	INC	IY		;Bump past dot
+	LD	A,D		;Type
+	OR	A
+	JP	M,MISMAT	;'Type mismatch'
+	EX	DE,HL
+	POP	HL
+;
+; A = type
+; DE = no. of elements in destination array (outer loop counter)
+; IX = pointer to first source array data
+; HL = pointer to destination data
+; IY = text pointer
+;
+	PUSH	DE
+	PUSH	HL
+	PUSH	IX
+	PUSH	AF
+	CALL	GETARR
+	CALL	ARRLEN
+	POP	AF
+	EX	DE,HL
+	LD	L,(IX)
+	LD	H,(IX+1)	;Indirect pointer
+	LD	L,(HL)		;No. of dimensions
+	DEC	L
+	EX	DE,HL
+	POP	IX
+	POP	BC
+	POP	DE
+;
+	PUSH	IY		;Save text pointer
+	PUSH	BC		;Save destination pointer
+	PUSH	HL
+	POP	IY
+;
+; Get row counts:
+;
+	LD	HL,1
+	JR	Z,ARR1D
+	LD	H,(IY-1)
+	LD	L,(IY-2)
+ARR1D:	PUSH	AF
+	PUSH	DE
+	LD	C,A
+	LD	B,0
+	CALL	MUL16
+	POP	DE
+	POP	AF
+	LD	B,(IX-1)
+	LD	C,(IX-2)
+;
+; A = type, Z-flag set if first array is one-dimensional
+; BC = no. of rows of first source array (inner loop counter)
+; DE = no. of elements in destination array (outer loop counter)
+; HL = no. of rows of second source array * size of each element
+; IX = pointer to first source array
+; IY = pointer to second source array
+; (SP) = pointer to destination data
+;
+; Dot-product outer loop:
+;
+OUTER:	PUSH	BC		;1
+	PUSH	DE		;2
+	PUSH	HL		;3
+	PUSH	IX		;4
+	PUSH	IY		;5
+	LD	D,B
+	LD	E,C
+	PUSH	AF
+	CALL	ZERO		;Zero accumulator
+	POP	AF
+INNER:	PUSH	DE		;6
+	PUSH	BC		;Save accumulator
+	PUSH	HL
+	EXX
+	PUSH	HL
+	EXX
+;
+	CALL	LOADN		;Load from (IX)
+	PUSH	IX
+	EX	(SP),IY
+	POP	IX
+;
+	CALL	DLOADN		;Load from (IY)
+	PUSH	IX
+	EX	(SP),IY
+	POP	IX
+;
+	PUSH	AF
+	LD	A,10
+	CALL	FPP		;Multiply
+	JP	C,ERROR
+	POP	AF
+;
+	EXX			;Restore accumulator
+	EX	DE,HL
+	POP	HL
+	EXX
+	EX	DE,HL
+	POP	HL
+	EX	AF,AF'
+	LD	A,C
+	POP	BC
+	LD	B,A
+	EX	AF,AF'
+;
+	PUSH	AF
+	LD	A,11
+	CALL	FPP		;Accumulate
+	JP	C,ERROR
+	POP	AF
+;
+; Bump pointers:
+;
+	POP	DE		;5
+;
+	EXX
+	LD	C,A
+	LD	B,0
+	ADD	IX,BC
+	POP	DE
+	POP	BC
+	EX	(SP),HL
+	EX	DE,HL
+	ADD	IY,DE
+	EX	DE,HL
+	EX	(SP),HL
+	PUSH	BC
+	PUSH	DE
+	EXX
+;
+; Count inner loops:
+;
+	DEC	DE		;Inner loop counter
+	INC	E
+	DEC	E
+	JR	NZ,INNER
+	INC	D
+	DEC	D
+	JR	NZ,INNER
+;
+	POP	IY		;4
+	POP	IX		;3
+;
+; Swap pointers:
+;
+	EXX
+	EX	AF,AF'
+	POP	AF
+	POP	BC
+	POP	DE
+	EX	(SP),IX
+	PUSH	DE
+	PUSH	BC
+	PUSH	AF
+	EX	AF,AF'
+	EXX
+;
+; Save to destination array and bump pointer:
+;
+	PUSH	AF
+	PUSH	DE
+	CALL	STOREN
+	POP	DE
+	POP	AF
+	LD	C,A
+	LD	B,0
+	ADD	IX,BC
+;
+; Swap pointers:
+;
+	EXX
+	EX	AF,AF'
+	POP	AF
+	POP	BC
+	POP	DE
+	EX	(SP),IX
+	PUSH	DE
+	PUSH	BC
+	PUSH	AF
+	EX	AF,AF'
+	EXX
+;
+	POP	HL		;2
+	POP	DE		;1 Outer loop counter
+	POP	BC		;0
+	DEC	DE		;Count outer loops
+;
+; Adjust IX & IY
+;
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	LD	C,A
+	LD	B,0
+	ADD	IY,BC
+	PUSH	AF
+	PUSH	HL
+	EX	DE,HL
+	CALL	MUL16
+	EX	DE,HL
+	POP	BC
+	CALL	MOD16
+	POP	AF
+	OR	A
+	LD	BC,0
+	SBC	HL,BC
+	POP	HL
+	POP	DE
+	POP	BC
+	JR	NZ,MODNZ
+	PUSH	DE
+	PUSH	HL
+	EX	DE,HL
+	PUSH	IY
+	POP	HL
+	OR	A
+	SBC	HL,DE
+	PUSH	HL
+	POP	IY
+	LD	L,A
+	LD	H,0
+	PUSH	AF
+	CALL	MUL16
+	POP	AF
+	EX	DE,HL
+	ADD	IX,DE
+	POP	HL
+	POP	DE
+MODNZ:
+;
+; Count outer loops:
+;
+	INC	E
+	DEC	E
+	JP	NZ,OUTER
+	INC	D
+	DEC	D
+	JP	NZ,OUTER
+;
+; Exit:
+;
+	POP	HL
+	POP	IY
+	RET
+;
+; HL = DE MOD BC
+;
+MOD16:	XOR	A
+	LD	H,A
+	LD	L,A
+	LD	A,17
+MOD160:	SBC	HL,BC
+	JR	NC,MOD161
+	ADD	HL,BC
+MOD161:	CCF
+	RL	E
+	RL	D
+	DEC	A
+	RET	Z
+	ADC	HL,HL
+	JR	MOD160
+;
+	END
diff --git a/Source/Apps/BBCBASIC/exec.z80 b/Source/Apps/BBCBASIC/exec.z80
new file mode 100644
index 00000000..17e647da
--- /dev/null
+++ b/Source/Apps/BBCBASIC/exec.z80
@@ -0,0 +1,3274 @@
+		TITLE	BBC BASIC (C) R.T.RUSSELL 1981-2024
+	NAME	('EXEC')
+;
+;BBC BASIC INTERPRETER - Z80 VERSION
+;STATEMENT EXECUTION MODULE - "EXEC"
+;(C) COPYRIGHT R.T.RUSSELL 1981-2024
+;
+;THE NAME BBC BASIC IS USED WITH THE PERMISSION
+;OF THE BRITISH BROADCASTING CORPORATION AND IS
+;NOT TRANSFERRABLE TO A FORKED OR DERIVED WORK.
+;
+;VERSION 2.1, 22-01-1984
+;VERSION 3.1, 11-06-1987
+;VERSION 5.0, 19-05-2024
+;
+	GLOBAL	XEQ
+	GLOBAL	RUN0
+	GLOBAL	CHAIN0
+	GLOBAL	CHECK
+	GLOBAL	MUL16
+	GLOBAL	X14OR5
+	GLOBAL	TERMQ
+	GLOBAL	STOREN
+	GLOBAL	STORE4
+	GLOBAL	STORE5
+	GLOBAL	STACCS
+	GLOBAL	SPACES
+	GLOBAL	FN
+	GLOBAL	USR
+	GLOBAL	ESCAPE
+	GLOBAL	SYNTAX
+	GLOBAL	CHANEL
+	GLOBAL	CHNL
+	GLOBAL	VAR
+	GLOBAL	TABIT
+	GLOBAL	MODIFY
+	GLOBAL	MODIFS
+;
+	EXTRN	ASSEM
+	EXTRN	ERROR
+	EXTRN	REPORT
+	EXTRN	WARM
+	EXTRN	CLOOP
+	EXTRN	SAYLN
+	EXTRN	LOAD0
+	EXTRN	CRLF
+	EXTRN	PBCDL
+	EXTRN	TELL
+	EXTRN	FINDL
+	EXTRN	SETLIN
+	EXTRN	CLEAR
+	EXTRN	GETVAR
+	EXTRN	PUTVAR
+	EXTRN	GETDEF
+	EXTRN	LOCATE
+	EXTRN	CREATE
+	EXTRN	OUTCHR
+	EXTRN	EXTERR
+	EXTRN	BYE
+	EXTRN	NXT
+	EXTRN	NLIST
+;
+	EXTRN	OSWRCH
+	EXTRN	OSLINE
+	EXTRN	OSSHUT
+	EXTRN	OSBPUT
+	EXTRN	OSBGET
+	EXTRN	CLRSCN
+	EXTRN	PUTCSR
+	EXTRN	PUTIME
+	EXTRN	PUTIMS
+	EXTRN	PUTPTR
+	EXTRN	OSCALL
+	EXTRN	OSCLI
+	EXTRN	TRAP
+;
+	EXTRN	SOUND
+	EXTRN	CLG
+	EXTRN	DRAW
+	EXTRN	ENVEL
+	EXTRN	GCOL
+	EXTRN	MODE
+	EXTRN	MOVE
+	EXTRN	PLOT
+	EXTRN	COLOUR
+	EXTRN	CIRCLE
+	EXTRN	ELLIPSE
+	EXTRN	FILL
+	EXTRN	MOUSE
+	EXTRN	ORIGIN
+	EXTRN	RECTAN
+	EXTRN	LINE
+	EXTRN	WAIT
+	EXTRN	TINT
+	EXTRN	SYS
+;
+	EXTRN	STR
+	EXTRN	HEXSTR
+	EXTRN	EXPR
+	EXTRN	EXPRN
+	EXTRN	EXPRI
+	EXTRN	EXPRS
+	EXTRN	ITEMI
+	EXTRN	CONS
+	EXTRN	LOADS
+	EXTRN	VAL0
+	EXTRN	SFIX
+	EXTRN	TEST
+	EXTRN	LOAD4
+	EXTRN	LOADN
+	EXTRN	DLOAD5
+	EXTRN	FPP
+	EXTRN	COMMA
+	EXTRN	BRAKET
+	EXTRN	PUSHS
+	EXTRN	POPS
+	EXTRN	ZERO
+	EXTRN	SCP
+	EXTRN	LETARR
+;
+	EXTRN	ACCS
+	EXTRN	PAGE
+	EXTRN	LOMEM
+	EXTRN	HIMEM
+	EXTRN	FREE
+	EXTRN	BUFFER
+	EXTRN	ERRTRP
+	EXTRN	ONERSP
+	EXTRN	CURLIN
+	EXTRN	COUNT
+	EXTRN	WIDTH
+	EXTRN	STAVAR
+	EXTRN	DATPTR
+	EXTRN	RANDOM
+	EXTRN	TRACEN
+	EXTRN	LISTON
+	EXTRN	PC
+	EXTRN	OC
+;
+LF	EQU	0AH
+CR	EQU	0DH
+TAND	EQU	80H
+TOR	EQU	84H
+TERROR	EQU	85H
+TLINE	EQU	86H
+TOFF	EQU	87H
+TSTEP	EQU	88H
+TSPC	EQU	89H
+TTAB	EQU	8AH
+TELSE	EQU	8BH
+TTHEN	EQU	8CH
+TLINO	EQU	8DH
+TTO	EQU	0B8H
+TCMD	EQU	0C0H
+TWHILE	EQU	0C7H
+TWHEN	EQU	0C9H
+TOF	EQU	0CAH
+TENDCASE EQU	0CBH
+TOTHERWISE EQU	0CCH
+TENDIF	EQU	0CDH
+TENDWHILE EQU	0CEH
+TCALL	EQU	0D6H
+TDATA	EQU	0DCH
+TDEF	EQU	0DDH
+TFOR	EQU	0E3H
+TGOSUB	EQU	0E4H
+TGOTO	EQU	0E5H
+TLOCAL	EQU	0EAH
+TNEXT	EQU	0EDH
+TON	EQU	0EEH
+TPROC	EQU	0F2H
+TREM	EQU	0F4H
+TREPEAT	EQU	0F5H
+TRETURN	EQU	0F8H
+TSTOP	EQU	0FAH
+TUNTIL	EQU	0FDH
+TEXIT	EQU	10H
+;
+CMDTAB:	DEFW	LEFTSL
+	DEFW	MIDSL
+	DEFW	RITESL
+	DEFW	SYNTAX	;STR$
+	DEFW	SYNTAX	;STRING$
+	DEFW	SYNTAX	;EOF
+	DEFW	SYNTAX	;SUM
+	DEFW	WHILE
+	DEFW	CASE
+	DEFW	SYNTAX	;WHEN
+	DEFW	SYNTAX	;OF
+	DEFW	XEQ	;ENDCASE
+	DEFW	SYNTAX	;OTHERWISE
+	DEFW	XEQ	;ENDIF
+	DEFW	ENDWHI	;ENDWHILE
+	DEFW	PTR
+	DEFW	PAGEV
+	DEFW	TIMEV
+	DEFW	LOMEMV
+	DEFW	HIMEMV
+	DEFW	SOUND
+	DEFW	BPUT
+	DEFW	CALL
+	DEFW	CHAIN
+	DEFW	CLR
+	DEFW	CLOSE
+	DEFW	CLG
+	DEFW	CLS
+	DEFW	REM		;DATA
+	DEFW	REM		;DEF
+	DEFW	DIM
+	DEFW	DRAW
+	DEFW	END
+	DEFW	ENDPRO
+	DEFW	ENVEL
+	DEFW	FOR
+	DEFW	GOSUB
+	DEFW	GOTO
+	DEFW	GCOL
+	DEFW	IF
+	DEFW	INPUT
+	DEFW	LET
+	DEFW	LOCAL
+	DEFW	MODE
+	DEFW	MOVE
+	DEFW	NEXT
+	DEFW	ON
+	DEFW	VDU
+	DEFW	PLOT
+	DEFW	PRINT
+	DEFW	PROC
+	DEFW	READ
+	DEFW	REM
+	DEFW	REPEAT
+	DEFW	REPOR
+	DEFW	RESTOR
+	DEFW	RETURN
+	DEFW	RUN
+	DEFW	STOP
+	DEFW	COLOUR
+	DEFW	TRACE
+	DEFW	UNTIL
+	DEFW	WIDTHV
+	DEFW	CLI		;OSCLI
+	DEFW	REM		;NUL
+	DEFW	CIRCLE
+	DEFW	ELLIPSE
+	DEFW	FILL
+	DEFW	MOUSE
+	DEFW	ORIGIN
+	DEFW	BYE		;QUIT
+	DEFW	RECTAN
+	DEFW	SWAP
+	DEFW	SYS
+	DEFW	TINT
+	DEFW	WAIT
+	DEFW	SYNTAX		;INSTALL
+	DEFW	REM		;CR
+	DEFW	PUT		;Token changed
+	DEFW	SYNTAX		;BY
+	DEFW	EXIT
+;
+TLAST	EQU	TCMD-128+($-CMDTAB)/2
+;
+RUN:	CALL	TERMQ
+	JR	Z,RUN0
+CHAIN:	CALL	EXPRS
+	LD	A,CR
+	LD	(DE),A
+CHAIN0:	LD	SP,(HIMEM)
+	CALL	LOAD0
+RUN0:	LD	SP,(HIMEM)	;PREPARE FOR RUN
+	LD	IX,RANDOM
+RAND:	LD	A,R		;RANDOMISE (CARE!)
+	JR	Z,RAND
+	RLCA
+	RLCA
+	LD	(IX+3),A
+	SBC	A,A
+	LD	(IX+4),A
+	CALL	CLEAR
+	LD	HL,0
+	LD	(ERRTRP),HL
+	LD	HL,(PAGE)
+	CALL	DSRCH		;LOOK FOR "DATA"
+	LD	(DATPTR),HL	;SET DATA POINTER
+	LD	IY,(PAGE)
+XEQ0:	CALL	NEWLIN
+	LD	A,(IY)
+	CP	TELSE
+	JP	Z,MELSE		;ELSE
+	CP	TWHEN
+	JP	Z,WHEN		;WHEN
+	CP	TOTHERWISE
+	JP	Z,WHEN
+XEQ:	LD	(CURLIN),IY	;ERROR POINTER
+	CALL	TRAP		;CHECK KEYBOARD
+XEQ1:	CALL	NXT
+	INC	IY
+	CP	':'		;SEPARATOR
+	JR	Z,XEQ1
+	CP	CR
+	JR	Z,XEQ0		;NEW PROGRAM LINE
+	CP	TLAST
+	JP	PE,LET0		;IMPLIED LET
+	SUB	TCMD
+	JP	M,EXTRAS
+	ADD	A,A
+	LD	C,A
+	LD	B,0
+	LD	HL,CMDTAB
+	ADD	HL,BC
+	LD	A,(HL)		;TABLE ENTRY
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	CALL	NXT
+	JP	(HL)		;EXECUTE STATEMENT
+;
+;END
+;
+ENDIM:	PUSH	IY
+	POP	HL
+	LD	BC,(PAGE)
+	SBC	HL,BC		;IMMEDIATE MODE ?
+	JP	C,CLOOP
+END:	LD	E,0
+	CALL	OSSHUT		;CLOSE ALL FILES
+	JP	WARM		;"Ready"
+;
+NEWLIN:	LD	A,(IY+0)	;A=LINE LENGTH
+	LD	BC,3
+	ADD	IY,BC
+	OR	A
+	JR	Z,ENDIM		;LENGTH=0, EXIT
+	LD	HL,(TRACEN)
+	LD	A,H
+	OR	L
+	RET	Z
+	LD	D,(IY-1)	;DE = LINE NUMBER
+	LD	E,(IY-2)
+	SBC	HL,DE
+	RET	C
+	EX	DE,HL
+	LD	A,'['		;TRACE
+	CALL	OUTCHR
+	CALL	PBCDL
+	LD	A,']'
+	CALL	OUTCHR
+	LD	A,' '
+	JP	OUTCHR
+;
+;ROUTINES FOR EACH STATEMENT:
+;
+;OSCLI
+;
+CLI:	CALL	EXPRS
+	LD	A,CR
+	LD	(DE),A
+	LD	HL,ACCS
+	CALL	OSCLI
+	JR	XEQ
+;
+;REM, *
+;
+EXT:	PUSH	IY
+	POP	HL
+	CALL	OSCLI
+REM:	PUSH	IY
+	POP	HL
+	LD	A,CR
+	LD	B,A
+	CPIR			;FIND LINE END
+	PUSH	HL
+	POP	IY
+	JP	XEQ0
+;
+EXTRAS:	CP	TELSE-TCMD
+	JR	Z,REM		;ELSE
+	CP	TERROR-TCMD
+	JR	Z,THROW		;ERROR
+	CP	TLINE-TCMD
+	JP	Z,LINE		;LINE
+	JP	SYNTAX
+;
+;ERROR num,string$
+;
+THROW:	CALL	EXPRI
+	EXX
+	PUSH	HL
+	EXX
+	CALL	COMMA
+	CALL	EXPRS
+	POP	HL
+	XOR	A
+	LD	(DE),A
+	LD	A,L
+	LD	HL,ACCS
+	LD	DE,BUFFER
+	PUSH	DE
+	LD	BC,256
+	LDIR
+	JP	EXTERR
+;
+; SWAP
+;
+SWAP:	CALL	GETVAR
+	JR	NZ,SWAPNZ
+	PUSH	AF
+	PUSH	HL
+	CALL	COMMA
+	CALL	NXT
+	CALL	GETVAR
+SWAPNZ:	JR	NZ,NOSUCH
+	POP	DE
+	POP	BC
+	CP	B
+	JR	NZ,MISMAT
+	AND	00001111B
+	JR	Z,MISMAT
+	LD	A,B
+	AND	11000000B
+	JR	Z,SWAP1
+	LD	B,2
+	JP	P,SWAP1
+	JP	PE,SWAP1
+	LD	B,4
+SWAP1:	LD	C,(HL)
+	LD	A,(DE)
+	LD	(HL),A
+	LD	A,C
+	LD	(DE),A
+	INC	DE
+	INC	HL
+	DJNZ	SWAP1
+	JR	XEQR
+;
+;[LET] var = expr
+;
+LET0:	CP	'*'
+	JR	Z,EXT
+	CP	'='
+	JR	Z,FNEND
+	CP	'['
+	JR	Z,ASM
+	DEC	IY
+LET:	CALL	ASSIGN
+	JP	Z,XEQ
+	JR	C,SYNTAX	;"Syntax error"
+	JP	P,LETARR	;Numeric array
+	JP	PE,LETARR	;String array
+	LD	A,D		;Type
+	PUSH	DE
+	PUSH	HL
+	CALL	EXPRS
+	POP	IX
+	POP	HL
+	CALL	MODIFS
+XEQR:	JP	XEQ
+;
+; GETSTR - Get string variable
+;   Inputs: IY = text pointer
+;  Outputs: B = type
+;           Z-flag set if comma
+;
+GETSTR:	CALL	GETVAR
+	JR	NZ,NOSUCH
+	LD	B,A
+	AND	11000000B
+	JP	P,MISMAT
+	JP	PE,BADUSE
+	BIT	0,B
+	JR	Z,MISMAT
+	CALL	NXT
+	CP	','
+	RET
+;
+VAR:	CALL	GETVAR
+	RET	Z
+	JP	NC,PUTVAR
+NOSUCH:	LD	A,26		;'No such variable'
+	DEFB	21H
+SYNTAX:	LD	A,16		;"Syntax error"
+	DEFB	21H
+ESCAPE:	LD	A,17		;"Escape"
+	DEFB	21H
+BADUSE:	LD	A,14		;'Bad use of array'
+	DEFB	21H
+MISMAT:	LD	A,6		;'Type mismatch'
+ERROR0:	JP	ERROR
+;
+ASM0:	CALL	NEWLIN
+ASM:	LD	(CURLIN),IY
+	CALL	TRAP
+	CALL	ASSEM
+	JR	C,SYNTAX
+	CP	CR
+	JR	Z,ASM0
+	LD	HL,LISTON
+	LD	A,(HL)
+	AND	0FH
+	OR	30H
+	LD	(HL),A
+	JR	XEQR
+;
+;=
+;
+FNEND:	CALL	EXPR		;FUNCTION RESULT
+	EX	AF,AF'
+	ADD	A,A
+	LD	A,E
+	JR	C,FNEND1
+	LD	A,C
+FNEND1:	EX	AF,AF'
+	PUSH	HL
+	EXX
+	POP	BC
+	EX	DE,HL		;SAVE RESULT IN A'B'C'D'E'
+	EXX
+FNEND2:	POP	BC
+	LD	HL,FNCHK
+	XOR	A
+	SBC	HL,BC
+	JR	Z,FNEND3
+	PUSH	BC
+	CALL	RESLOC
+	JR	NZ,FNEND2
+	LD	A,7
+	JR	ERROR0		;"No FN"
+;
+FNEND3:	POP	IY
+	LD	(CURLIN),IY	;IN CASE OF ERROR
+	EXX
+	EX	DE,HL
+	PUSH	BC
+	EXX
+	POP	HL
+	EX	AF,AF'
+	LD	E,A
+	LD	C,A
+	RRA
+	RET
+;
+;DIM var(dim1[,dim2[,...]])[,var(...]
+;DIM var expr[,var expr...]
+;
+DIM:	PUSH	IY
+	CP	'!'
+	JP	Z,DIM4
+	CALL	LOCATE		;VARIABLE
+	JP	C,BADDIM
+	CALL	NZ,CREATE
+	LD	A,(IY)
+	CP	'('
+	JP	NZ,DIM4
+	PUSH	HL
+	POP	IX
+	LD	A,(HL)
+	AND	0FEH
+	INC	HL
+	OR	(HL)
+	JP	NZ,DIM4
+	POP	BC		;LEVEL STACK
+	LD	A,D
+	LD	HL,(FREE)
+	PUSH	HL
+	EX	(SP),IX
+	PUSH	HL
+	PUSH	AF		;SAVE TYPE
+	LD	DE,1
+	LD	B,D		;DIMENSION COUNTER
+DIM1:	INC	IY
+	PUSH	BC
+	PUSH	DE
+	PUSH	IX
+	CALL	EXPRI		;DIMENSION SIZE
+	BIT	7,H
+	JR	NZ,BADDIM
+	EXX
+	INC	HL
+	POP	IX
+	INC	IX
+	LD	(IX),L		;SAVE SIZE
+	INC	IX
+	LD	(IX),H
+	POP	BC
+	CALL	MUL16		;HL=HL*BC
+	JR	C,NOROOM	;TOO LARGE
+	EX	DE,HL		;DE=PRODUCT
+	POP	BC
+	INC	B		;DIMENSION COUNTER
+	LD	A,(IY)
+	CP	','		;ANOTHER
+	JR	Z,DIM1
+	INC	IX
+	CALL	BRAKET		;CLOSING BRACKET
+	POP	AF		;RESTORE TYPE
+	CALL	X14OR5		;DE=DE*n
+	JR	C,NOROOM
+	POP	HL
+	LD	(HL),B		;NO. OF DIMENSIONS
+	EX	(SP),IX
+	POP	HL
+	AND	80H
+	OR	(IX)		;FLAGS
+;
+;  A = flags: bit 7 = string, bit 0 = LOCAL 
+; DE = amount to allocate
+; HL = where to allocate (if not LOCAL)
+; (HL - FREE is size of 'descriptor')
+; IX = where to store pointer
+;
+DIM3:	PUSH	HL
+	INC	H		;Safety margin
+	ADD	HL,DE
+	JR	C,NOROOM
+	SBC	HL,SP
+	JR	NC,NOROOM
+	POP	HL
+	PUSH	HL
+	LD	BC,(FREE)
+	OR	A
+	SBC	HL,BC
+	LD	B,H
+	LD	C,L
+	POP	HL
+	SBC	HL,BC
+	BIT	0,A
+	JR	Z,ARRCHK	;NOT LOCAL
+	LD	HL,0
+	ADD	HL,SP
+	SBC	HL,DE
+	SBC	HL,BC
+	LD	SP,HL
+	PUSH	DE
+	PUSH	BC
+	PUSH	AF
+	CALL	ARRCHK
+ARRCHK:	LD	(IX+0),L	;SAVE POINTER
+	LD	(IX+1),H
+	LD	A,B
+	OR	C
+	JR	Z,DIM2
+	PUSH	DE
+	EX	DE,HL
+	LD	HL,(FREE)
+	LDIR			;COPY DESCRIPTOR
+	EX	DE,HL
+	POP	DE
+DIM2:	LD	A,D
+	OR	E
+	JR	Z,DIM5
+	LD	(HL),0		;INITIALISE ARRAY
+	INC	HL
+	DEC	DE
+	JR	DIM2
+;
+BADDIM:	LD	A,10		;"Bad DIM"
+	DEFB	21H
+NOROOM:	LD	A,11		;"DIM space"
+ERROR1:	JP	ERROR
+;
+DIM5:	SBC	HL,SP
+	JR	NC,DIM7		;LOCAL
+	ADD	HL,SP
+	LD	(FREE),HL
+DIM7:	CALL	NLIST		;ANOTHER VARIABLE?
+	JP	DIM
+;
+DIM4:	POP	IY
+	CALL	VAR
+	OR	A
+	JR	Z,BADDIM
+	JP	M,BADDIM
+	BIT	6,A
+	JR	NZ,BADDIM
+	LD	B,A		;TYPE
+	CALL	NXT
+	CP	TLOCAL
+	LD	A,0		;PRESET TO NOT LOCAL
+	JR	NZ,DIM8
+	INC	IY
+	INC	A		;FLAG LOCAL
+DIM8:	PUSH	AF
+	LD	A,B		;TYPE
+	EXX
+	LD	HL,0
+	LD	C,H
+	CALL	STOREN		;RESERVED AREA
+	PUSH	IX
+	CALL	EXPRI
+	POP	IX
+	EXX
+	INC	HL
+	EX	DE,HL
+	LD	HL,(FREE)
+	POP	AF		;LOCAL FLAG
+	JP	DIM3
+;
+;PRINT list...
+;PRINT #channel,list...
+;
+PRINT:	CP	'#'
+	JR	NZ,PRINT0
+	CALL	CHNL		;CHANNEL NO. = E
+PRNTN1:	CALL	NLIST
+	PUSH	DE
+	CALL	EXPR		;ITEM TO PRINT
+	EX	AF,AF'
+	JP	M,PRNTN2	;STRING
+	POP	DE
+	PUSH	BC
+	EXX
+	LD	A,L
+	EXX
+	CALL	OSBPUT
+	EXX
+	LD	A,H
+	EXX
+	CALL	OSBPUT
+	LD	A,L
+	CALL	OSBPUT
+	LD	A,H
+	CALL	OSBPUT
+	POP	BC
+	LD	A,C
+	CALL	OSBPUT
+	JR	PRNTN1
+PRNTN2:	LD	C,E
+	POP	DE
+	LD	HL,ACCS
+	INC	C
+PRNTN3:	DEC	C
+	JR	Z,PRNTN4
+	LD	A,(HL)
+	INC	HL
+	PUSH	BC
+	CALL	OSBPUT
+	POP	BC
+	JR	PRNTN3
+PRNTN4:	LD	A,CR
+	CALL	OSBPUT
+	JR	PRNTN1
+;
+PRINT6:	LD	B,2
+	JR	PRINTC
+PRINT8:	LD	BC,100H
+	JR	PRINTC
+PRINT9:	LD	HL,STAVAR
+	XOR	A
+	CP	(HL)
+	JR	Z,PRINT0
+	LD	A,(COUNT)
+	OR	A
+	JR	Z,PRINT0
+PRINTA:	SUB	(HL)
+	JR	Z,PRINT0
+	JR	NC,PRINTA
+	NEG
+	CALL	SPACES
+PRINT0:	LD	A,(STAVAR)
+	LD	C,A		;PRINTS
+	LD	B,0		;PRINTF
+PRINTC:	CALL	TERMQ
+	JR	Z,PRINT4
+	RES	0,B
+	INC	IY
+	CP	'~'
+	JR	Z,PRINT6
+	CP	';'
+	JR	Z,PRINT8
+	CP	','
+	JR	Z,PRINT9
+	CALL	FORMAT		;SPC, TAB, '
+	JR	Z,PRINTC
+	DEC	IY
+	PUSH	BC
+	CALL	EXPR		;VARIABLE TYPE
+	EX	AF,AF'
+	JP	M,PRINT3	;STRING
+	POP	DE
+	PUSH	DE
+	BIT	1,D
+	PUSH	AF
+	CALL	Z,STR		;DECIMAL
+	POP	AF
+	CALL	NZ,HEXSTR	;HEX
+	POP	BC
+	PUSH	BC
+	LD	A,C
+	SUB	E
+	CALL	NC,SPACES		;RIGHT JUSTIFY
+PRINT3:	POP	BC
+	CALL	PTEXT		;PRINT
+	JR	PRINTC
+PRINT4:	BIT	0,B
+	CALL	Z,CRLF
+	JR	XEQGO3
+;
+ONERR:	INC	IY		;SKIP "ERROR"
+	CALL	NXT
+	LD	HL,0		;FLAG NOT LOCAL
+	CP	TLOCAL
+	JR	NZ,ONERR1
+	INC	IY		;SKIP "LOCAL"
+	LD	HL,(ERRTRP)
+	PUSH	HL
+	LD	HL,(ONERSP)
+	PUSH	HL
+	LD	HL,400H		;TYPE = 4, 'EXPONENT' = 0
+	PUSH	HL
+	LD	HL,ERRTRP
+	PUSH	HL
+	LD	HL,LOCCHK
+	PUSH	HL
+	LD	HL,0
+	ADD	HL,SP
+	CALL	NXT
+ONERR1:	LD	(ONERSP),HL
+	LD	(ERRTRP),IY
+	CP	TOFF
+	JP	NZ,REM
+	INC	IY		;SKIP "OFF"
+	SBC	HL,HL
+	LD	(ONERSP),HL
+	LD	(ERRTRP),HL
+XEQGO3:	JP	XEQ
+;
+;ON expr GOTO line[,line...] [ELSE statement]
+;ON expr GOTO line[,line...] [ELSE line]
+;ON expr GOSUB line[,line...] [ELSE statement]
+;ON expr GOSUB line[,line...] [ELSE line]
+;ON expr PROCone [,PROCtwo..] [ELSE PROCotherwise]
+;ON ERROR [LOCAL] statement [:statement...]
+;ON ERROR [LOCAL] OFF
+;
+ON:	CP	TERROR
+	JR	Z,ONERR		;"ON ERROR"
+	CALL	EXPRI
+	LD	A,(IY)
+	INC	IY
+	LD	E,','		;SEPARATOR
+	CP	TGOTO
+	JR	Z,ON1
+	CP	TGOSUB
+	JR	Z,ON1
+	LD	E,TPROC
+	CP	E
+	LD	A,39
+	JR	NZ,ERROR2	;"ON syntax"
+ON1:	LD	D,A
+	EXX
+	PUSH	HL
+	EXX
+	POP	BC		;ON INDEX
+	LD	A,B
+	OR	H
+	OR	L
+	JR	NZ,ON4		;OUT OF RANGE
+	OR	C
+	JR	Z,ON4
+	DEC	C
+	JR	Z,ON3		;INDEX=1
+ON2:	CALL	TERMQ
+	JR	Z,ON4		;OUT OF RANGE
+	INC	IY		;SKIP DELIMITER
+	CP	'"'
+	JR	Z,ON5
+	CP	E
+	JR	NZ,ON2
+	DEC	C
+	JR	NZ,ON2
+ON3:	LD	A,E
+	CP	TPROC
+	JR	Z,ONPROC
+	PUSH	DE
+	CALL	ITEMI		;LINE NUMBER
+	POP	DE
+	LD	A,D
+	CP	TGOTO
+	JR	Z,GOTO2
+	CALL	SPAN		;SKIP REST OF LIST
+	JR	GOSUB1
+;
+ON5:	CALL	QUOTE
+	INC	IY
+	JR	ON2
+;
+ON4:	LD	A,(IY)
+	INC	IY
+	CP	TELSE
+	JP	Z,IF1		;ELSE CLAUSE
+	CP	CR
+	JR	NZ,ON4
+	LD	A,40
+ERROR2:	JP	ERROR		;"ON range"
+;
+ONPROC:	LD	A,TON
+	JP	PROC
+;
+;GOTO line
+;
+GOTO:	CALL	ITEMI		;LINE NUMBER
+GOTO1:	CALL	TERMQ
+	JP	NZ,SYNTAX
+GOTO2:	EXX
+	CALL	FINDL
+	PUSH	HL
+	POP	IY
+	JP	Z,XEQ0
+	LD	A,41
+	JR	ERROR2		;"No such line"
+;
+;GOSUB line
+;
+GOSUB:	CALL	ITEMI		;LINE NUMBER
+GOSUB1:	PUSH	IY		;TEXT POINTER
+	CALL	CHECK		;CHECK ROOM
+	CALL	GOTO1		;SAVE MARKER
+GOSCHK	EQU	$
+;
+;RETURN
+;
+RETURN:	POP	DE		;MARKER
+	LD	HL,GOSCHK
+	OR	A
+	SBC	HL,DE
+	POP	IY
+	JR	Z,XEQGO2
+	LD	A,38
+	JR	ERROR2		;"No GOSUB"
+;
+;REPEAT
+;
+REPEAT:	PUSH	IY
+	CALL	CHECK
+	CALL	XEQ
+REPCHK	EQU	$
+;
+;UNTIL expr
+;
+UNTIL:	POP	BC
+	PUSH	BC
+	LD	HL,REPCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,UNTIL1
+	LD	A,3
+	CALL	RESLOC
+	JR	NZ,UNTIL
+	LD	A,43
+	JR	ERROR2		;"Not in a REPEAT loop"
+;
+UNTIL1:	CALL	EXPRI
+	CALL	TEST
+	POP	BC
+	POP	DE
+	JR	NZ,XEQGO2		;TRUE
+	PUSH	DE
+	PUSH	BC
+	PUSH	DE
+	POP	IY
+XEQGO2:	JP	XEQ
+;
+;FOR var = expr TO expr [STEP expr]
+;
+FORVAR:	LD	A,34
+	JR	ERROR2		;"FOR variable"
+;
+FOR:	CALL	ASSIGN
+	JR	NZ,FORVAR	;"FOR variable"
+	PUSH	AF		;SAVE TYPE
+	LD	A,(IY)
+	CP	TTO
+	LD	A,36
+	JR	NZ,ERROR2	;"No TO"
+	INC	IY
+	PUSH	IX
+	CALL	EXPRN		;LIMIT
+	POP	IX
+	POP	AF
+	LD	B,A		;TYPE
+	PUSH	BC		;SAVE ON STACK
+	PUSH	HL
+	LD	HL,0
+	LD	C,H
+	EXX
+	PUSH	HL
+	LD	HL,1		;PRESET STEP
+	EXX
+	LD	A,(IY)
+	CP	TSTEP
+	JR	NZ,FOR1
+	INC	IY
+	PUSH	IX
+	CALL	EXPRN		;STEP
+	POP	IX
+FOR1:	LD	B,8		;FPP '>'
+	BIT	7,H
+	JR	NZ,FOR2		;STEP SIGN
+	LD	B,12		;FPP '<'
+FOR2:	PUSH	BC
+	PUSH	HL
+	EXX
+	PUSH	HL
+	EXX
+	PUSH	IY		;SAVE TEXT POINTER
+	PUSH	IX		;LOOP VARIABLE
+	CALL	CHECK
+	CALL	XEQ
+FORCHK	EQU	$
+;
+;NEXT [var[,var...]]
+;
+NEXT:	POP	BC		;MARKER
+	LD	HL,FORCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,NEXT2
+	PUSH	BC
+	LD	A,3
+	CALL	RESLOC
+	JR	NZ,NEXT
+	LD	A,32
+	JR	ERROR3		;"Not in a FOR loop"
+;
+NEXT2:	CALL	TERMQ
+	POP	HL
+	PUSH	HL
+	PUSH	BC
+	PUSH	HL
+	CALL	NZ,GETVAR	;VARIABLE
+	POP	DE
+	EX	DE,HL
+	OR	A
+NEXT0:	SBC	HL,DE
+	JR	NZ,NEXT1
+	PUSH	DE
+	LD	IX,6+2
+	ADD	IX,SP
+	CALL	DLOAD5		;STEP
+	LD	A,(IX+11)	;TYPE
+	POP	IX
+	CALL	LOADN		;LOOP VARIABLE
+	PUSH	AF
+	LD	A,'+' AND 0FH
+	CALL	FPP		;ADD STEP
+	JR	C,ERROR3
+	POP	AF		;RESTORE TYPE
+	CALL	STOREN		;UPDATE VARIABLE
+	LD	IX,12
+	ADD	IX,SP
+	CALL	DLOAD5		;LIMIT
+	LD	A,(IX-1)
+	CALL	FPP		;TEST AGAINST LIMIT
+	JR	C,ERROR3
+	INC	H
+	JR	NZ,LOOP		;KEEP LOOPING
+	LD	HL,18
+	ADD	HL,SP
+	LD	SP,HL
+	CALL	NLIST
+	JR	NEXT
+;
+LOOP:	POP	BC
+	POP	DE
+	POP	IY
+	PUSH	IY
+	PUSH	DE
+	PUSH	BC
+	JP	XEQ
+;
+NEXT1:	LD	HL,18
+	ADD	HL,SP
+	LD	SP,HL		;"POP" THE STACK
+	POP	BC
+	LD	HL,FORCHK
+	SBC	HL,BC
+	POP	HL		;VARIABLE POINTER
+	PUSH	HL
+	PUSH	BC
+	JR	Z,NEXT0
+	LD	A,33
+ERROR3:	JP	ERROR		;"Can't match FOR"
+;
+;FNname
+;N.B. ENTERED WITH A <> TON
+;
+FN:	PUSH	AF		;MAKE SPACE ON STACK
+	CALL	PROC1
+FNCHK	EQU	$
+;
+;PROCname
+;N.B. ENTERED WITH A = ON PROC FLAG
+;
+PROC:	PUSH	AF		;MAKE SPACE ON STACK
+	CALL	PROC1
+PROCHK	EQU	$
+PROC1:	CALL	CHECK
+	DEC	IY
+	PUSH	IY
+	CALL	GETDEF
+	POP	BC
+	JR	Z,PROC4
+	LD	A,30
+	JR	C,ERROR3	;"Bad call"
+	PUSH	BC
+	LD	HL,(PAGE)
+PROC2:	LD	A,TDEF
+	CALL	SEARCH		;LOOK FOR "DEF"
+	JR	C,PROC3
+	PUSH	HL
+	POP	IY
+	INC	IY		;SKIP DEF
+	CALL	NXT
+	CALL	GETDEF
+	PUSH	IY
+	POP	DE
+	JR	C,PROC6
+	CALL	NZ,CREATE
+	PUSH	IY
+	POP	DE
+	LD	(HL),E
+	INC	HL
+	LD	(HL),D		;SAVE ADDRESS
+PROC6:	EX	DE,HL
+	LD	A,CR
+	LD	B,A
+	CPIR			;SKIP TO END OF LINE
+	JR	PROC2
+PROC3:	POP	IY		;RESTORE TEXT POINTER
+	CALL	GETDEF
+	LD	A,29
+	JR	NZ,ERROR3	;"No such FN/PROC"
+PROC4:	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)		;GET ADDRESS
+	LD	HL,2
+	ADD	HL,SP
+	CALL	NXT		;ALLOW SPACE BEFORE (
+	PUSH	DE		;EXCHANGE DE,IY
+	EX	(SP),IY
+	POP	DE
+	CP	'('		;ARGUMENTS?
+	JP	NZ,PROC5
+	CALL	NXT		;ALLOW SPACE BEFORE (
+	CP	'('
+	JP	NZ,SYNTAX	;"Syntax error"
+	PUSH	IY
+	POP	BC		;SAVE IY IN BC
+	EXX
+	EX	AF,AF'
+	XOR	A		;INITIALISE RETURN COUNT
+	EX	AF,AF'
+	CALL	SAVLOC		;SAVE DUMMY VARIABLES
+	EX	AF,AF'
+	OR	A
+	JR	Z,RETCHK	;NO RETURNS
+	PUSH	HL
+	NEG
+	LD	L,A
+	NEG
+	LD	H,-1		;HL = -RETURNS
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,HL		;-RETURNS * 8
+	EX	(SP),HL
+	POP	IX
+	ADD	IX,SP
+	LD	SP,IX
+	PUSH	AF		;PUSH RETURN COUNT
+	CALL	RETCHK		;PUSH MARKER
+RETCHK:	EX	AF,AF'
+	CALL	BRAKET		;CLOSING BRACKET
+	EXX
+	PUSH	BC
+	POP	IY		;RESTORE IY
+	PUSH	HL
+	CALL	ARGUE		;TRANSFER ARGUMENTS
+	POP	HL
+;
+; If any of the dummy arguments is the same as a passed-by-reference
+; variable, then it must not be restored on exit (it would overwrite
+; the wanted returned values), therefore search the saved values on
+; the stack and if a match is found set bit 4 of the type.  On exit
+; from the FN/PROC this will prevent the dummies from being restored.
+;
+	EX	(SP),HL
+	OR	A
+	LD	BC,RETCHK
+	SBC	HL,BC
+	ADD	HL,BC
+	EX	(SP),HL
+	JR	NZ,PROC5	;No RETURNs
+;
+	PUSH	DE
+	PUSH	HL
+	LD	HL,7		;Skip two PUSHes and RETCHK
+	ADD	HL,SP
+	LD	A,(HL)		;RETURN count
+	INC	HL
+	PUSH	HL
+	POP	IX		;Address RETURNs table
+PROC0:	LD	E,A
+	LD	D,0
+	EX	DE,HL
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,DE		;HL addresses SAVLOC stack
+	INC	HL
+	INC	HL		;Bump past LOCCHK
+PROC7:	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)		;DE = SAVLOC VARPTR
+	INC	HL
+	LD	C,(HL)		;Length (if string)
+	INC	HL
+	LD	B,(HL)		;Variable type
+;
+; Scan RETURNs table for VARPTR match
+;
+	PUSH	BC		;Save type
+	PUSH	HL
+	PUSH	IX
+	LD	B,A		;B = RETURN count
+PROC8:	LD	L,(IX+4)
+	LD	H,(IX+5)	;HL = RETURNed VARPTR
+	OR	A
+	SBC	HL,DE
+	JR	Z,PROC9
+	EX	DE,HL
+	LD	DE,8
+	ADD	IX,DE
+	EX	DE,HL
+	DJNZ	PROC8
+PROC9:	POP	IX
+	POP	HL
+	POP	BC		;Restore type
+;
+; If match, set bit 4 of type:
+;
+	JR	NZ,PROCA
+	SET	4,(HL)		;Flag don't restore
+;
+; Increment past stacked data:
+;
+PROCA:	LD	DE,3
+	BIT	6,B
+	JR	NZ,PROCB	;Whole array
+	LD	E,5
+	BIT	7,B
+	JR	Z,PROCB		;Numeric
+	LD	E,C
+	INC	DE
+PROCB:	ADD	HL,DE
+	LD	C,(HL)
+	INC	HL
+	LD	B,(HL)
+	INC	HL		; BC = marker ?
+	EX	DE,HL
+	LD	HL,LOCCHK
+	OR	A
+	SBC	HL,BC
+	EX	DE,HL
+	JR	Z,PROC7		;Another
+	POP	HL
+	POP	DE
+;
+PROC5:	LD	(HL),E		;SAVE "RETURN ADDRESS"
+	INC	HL
+	LD	A,(HL)
+	LD	(HL),D
+	CP	TON		;WAS IT "ON PROC" ?
+	JR	NZ,XEQGO
+	PUSH	DE
+	EX	(SP),IY
+	CALL	SPAN		;SKIP REST OF ON LIST
+	EX	(SP),IY
+	POP	DE
+	LD	(HL),D
+	DEC	HL
+	LD	(HL),E
+XEQGO:	JP	XEQ
+;
+LOCERR:	INC	IY
+	JR	XEQGO
+;
+;LOCAL DATA
+;
+LOCDAT:	INC	IY
+	LD	HL,(DATPTR)
+	PUSH	HL
+	LD	A,40H
+	PUSH	AF
+	LD	HL,DATPTR
+	PUSH	HL
+	LD	HL,LOCCHK
+	PUSH	HL
+	JR	XEQGO
+;
+;LOCAL var[,var...]
+;
+LOCAL:	CP	TERROR
+	JR	Z,LOCERR
+	CP	TDATA
+	JR	Z,LOCDAT
+	POP	BC
+	PUSH	BC
+	LD	HL,FNCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,LOCAL1
+	LD	HL,PROCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,LOCAL1
+	LD	HL,LOCCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,LOCAL1
+	LD	HL,ARRCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,LOCAL1
+	LD	HL,RETCHK
+	OR	A
+	SBC	HL,BC
+	LD	A,12
+	JP	NZ,ERROR	;"Not LOCAL"
+LOCAL1:	PUSH	IY
+	POP	BC
+	EXX
+	DEC	IY
+	CALL	SAVLOC
+	EXX
+	PUSH	BC
+	POP	IY
+LOCAL2:	CALL	GETVAR
+	JP	NZ,SYNTAX
+	BIT	6,A		;ARRAY?
+	JR	NZ,LOCAL4
+	OR	A		;TYPE
+	EX	AF,AF'
+	CALL	ZERO
+	EX	AF,AF'
+	PUSH	AF
+	CALL	P,STOREN	;ZERO
+	POP	AF
+	LD	E,C
+	CALL	M,STORES
+LOCAL3:	CALL	NLIST
+	JR	LOCAL2
+;
+LOCAL4:	LD	(IX+0),1	;FLAG LOCAL ARRAY
+	LD	(IX+1),0
+	JR	LOCAL3
+;
+;ENDPROC
+;
+ENDPRO:	POP	BC
+	LD	HL,PROCHK	;PROC MARKER
+	XOR	A
+	SBC	HL,BC
+	JR	Z,ENDPR1
+	PUSH	BC		;PUT BACK
+	CALL	RESLOC
+	JR	NZ,ENDPRO
+	LD	A,13
+	JP	ERROR		;"No PROC"
+;
+ENDPR1:	POP	IY
+	JP	XEQ
+;
+;INPUT #channel,var,var...
+;
+INPUTN:	CALL	CHNL		;E = CHANNEL NUMBER
+INPN1:	CALL	NLIST
+	PUSH	DE
+	CALL	VAR
+	POP	DE
+	PUSH	AF		;SAVE TYPE
+	PUSH	HL		;VARPTR
+	OR	A
+	JP	M,INPN2		;STRING
+	CALL	OSBGET
+	EXX
+	LD	L,A
+	EXX
+	CALL	OSBGET
+	EXX
+	LD	H,A
+	EXX
+	CALL	OSBGET
+	LD	L,A
+	CALL	OSBGET
+	LD	H,A
+	CALL	OSBGET
+	LD	C,A
+	POP	IX
+	POP	AF		;RESTORE TYPE
+	PUSH	DE		;SAVE CHANNEL
+	CALL	STOREN
+	POP	DE
+	JR	INPN1
+INPN2:	LD	HL,ACCS
+INPN3:	CALL	OSBGET
+	CP	CR
+	JR	Z,INPN4
+	LD	(HL),A
+	INC	L
+	JR	NZ,INPN3
+INPN4:	POP	IX
+	POP	AF
+	PUSH	DE
+	EX	DE,HL
+	CALL	STACCS
+	POP	DE
+	JR	INPN1
+;
+;INPUT ['][SPC(x)][TAB(x[,y])]["prompt",]var[,var...]
+;INPUT LINE [SPC(x)][TAB(x[,y])]["prompt",]var[,var...]
+;
+INPUT:	CP	'#'
+	JR	Z,INPUTN
+	LD	C,0		;FLAG PROMPT
+	CP	TLINE
+	JR	NZ,INPUT0
+	INC	IY		;SKIP "LINE"
+	LD	C,80H
+INPUT0:	LD	HL,BUFFER
+	LD	(HL),CR		;INITIALISE EMPTY
+INPUT1:	CALL	TERMQ
+	JP	Z,XEQ		;DONE
+	INC	IY
+	CP	','
+	JR	Z,INPUT3	;SKIP COMMA
+	CP	';'
+	JR	Z,INPUT3
+	PUSH	HL		;SAVE BUFFER POINTER
+	CP	'"'
+	JR	NZ,INPUT6
+	PUSH	BC
+	CALL	CONS
+	POP	BC
+	CALL	PTEXT		;PRINT PROMPT
+	JR	INPUT9
+INPUT6:	CALL	FORMAT		;SPC, TAB, '
+	JR	NZ,INPUT2
+INPUT9:	POP	HL
+	SET	0,C		;FLAG NO PROMPT
+	JR	INPUT0
+INPUT2:	DEC	IY
+	PUSH	BC
+	CALL	VAR
+	POP	BC
+	POP	HL
+	PUSH	AF		;SAVE TYPE
+	LD	A,(HL)
+	INC	HL
+	CP	CR		;BUFFER EMPTY?
+	CALL	Z,REFILL
+	BIT	7,C
+	PUSH	AF
+	CALL	NZ,LINES
+	POP	AF
+	CALL	Z,FETCHS
+	POP	AF		;RESTORE TYPE
+	PUSH	BC
+	PUSH	HL
+	OR	A
+	JP	M,INPUT4	;STRING
+	PUSH	AF
+	PUSH	IX
+	CALL	VAL0
+	POP	IX
+	POP	AF
+	CALL	STOREN
+	JR	INPUT5
+INPUT4:	CALL	STACCS
+INPUT5:	POP	HL
+	POP	BC
+INPUT3:	RES	0,C
+	JR	INPUT1
+;
+REFILL:	BIT	0,C
+	JR	NZ,REFIL0	;NO PROMPT
+	LD	A,'?'
+	CALL	OUTCHR		;PROMPT
+	LD	A,' '
+	CALL	OUTCHR
+REFIL0:	LD	HL,BUFFER
+	PUSH	BC
+	PUSH	HL
+	PUSH	IX
+	CALL	OSLINE
+	POP	IX
+	POP	HL
+	POP	BC
+	LD	B,A		;POS AT ENTRY
+	XOR	A
+	LD	(COUNT),A
+	CP	B
+	RET	Z
+REFIL1:	LD	A,(HL)
+	CP	CR
+	RET	Z
+	INC	HL
+	DJNZ	REFIL1
+	RET
+;
+;READ var[,var...]
+;
+READ:	CP	'#'
+	JP	Z,INPUTN
+	LD	HL,(DATPTR)
+READ0:	LD	A,(HL)
+	CP	':'
+	CALL	Z,REFIL1
+	INC	HL		;SKIP COMMA OR "DATA"
+	CP	CR		;END OF DATA STMT?
+	CALL	Z,GETDAT
+	PUSH	HL
+	CALL	VAR
+	POP	HL
+	OR	A
+	JP	M,READ1		;STRING
+	PUSH	HL
+	EX	(SP),IY
+	PUSH	AF		;SAVE TYPE
+	PUSH	IX
+	CALL	EXPRN
+	POP	IX
+	POP	AF
+	CALL	STOREN
+	EX	(SP),IY
+	JR	READ2
+READ1:	CALL	FETCHS
+	PUSH	HL
+	CALL	STACCS
+READ2:	POP	HL
+	LD	(DATPTR),HL
+	CALL	NLIST
+	JR	READ0
+;
+GETDAT:	CALL	DSRCH
+	INC	HL
+	RET	NC
+	LD	A,42
+	JR	ERROR4		;"Out of DATA"
+;
+;IF expr statement
+;IF expr THEN statement [ELSE statement]
+;IF expr THEN line [ELSE line]
+;IF expr THEN
+;
+IF:	CALL	EXPRI
+	CALL	TEST
+	JR	Z,IFNOT		;FALSE
+	LD	A,(IY)
+	CP	TTHEN
+	JP	NZ,XEQ
+IF0:	INC	IY		;SKIP "THEN"
+	LD	A,(IY)
+	CP	';'
+	JR	Z,IF0
+IF1:	CALL	NXT
+	CP	TLINO
+	JP	NZ,XEQ		;STATEMENT FOLLOWS
+	JP	GOTO		;LINE NO. FOLLOWS
+;
+IFELSE:	LD	A,(IY)
+	INC	IY
+	CP	';'
+	JR	NZ,IFNEXT
+	JR	IFTHEN
+;
+IF2:	CALL	QUOTE		;SKIP STRING
+IFNOT:	LD	A,(IY)
+	INC	IY
+IFNEXT:	CP	'"'
+	JR	Z,IF2		;QUOTED STRING
+	CP	TREM
+	JP	Z,REM		;REM
+	CP	CR
+	JP	Z,XEQ0		;END OF LINE
+	CP	TELSE
+	JR	Z,IF1		;ELSE CLAUSE
+	CP	TTHEN
+	JR	NZ,IFNOT	;TRY FOR END AGAIN
+IFTHEN:	LD	A,(IY)
+	CP	CR
+	JR	NZ,IFELSE
+	LD	BC,TELSE
+	LD	DE,TENDIF*256+TTHEN
+	INC	IY
+	CALL	NSCAN
+	JP	Z,XEQ1
+NENDIF:	LD	A,49
+ERROR4:	JP	ERROR		;"Missing ENDIF"
+;
+; ELSE (multi-line)
+;
+MELSE:	LD	BC,-3
+	ADD	IY,BC
+	LD	BC,TENDIF
+	LD	DE,TENDIF*256+TTHEN
+	CALL	NSCAN
+	JP	Z,XEQ
+	JR	NENDIF
+;
+; WHEN and OTHERWISE:
+;
+WHEN:	LD	BC,-3
+	ADD	IY,BC
+	LD	BC,TENDCASE
+	LD	DE,TENDCASE*256+TOF
+	CALL	NSCAN
+	JP	Z,XEQ
+	LD	A,47
+	JR	ERROR4		;"Missing ENDCASE"
+;
+; CASE
+;
+CASE:	CALL	EXPR		;String or numeric
+	EX	AF,AF'
+	LD	B,0		;Flag numeric
+	JP	P,CASE6		;numeric
+	CALL	PUSHS		;put string on stack
+	POP	BC		;C = length
+	LD	B,1		;Flag string
+CASE6:	LD	A,(IY)
+	INC	IY
+	CP	TOF
+	LD	A,37
+	JR	NZ,ERROR4	;"Missing OF"
+	LD	A,(IY)
+	INC	IY		;Address line-length byte
+	CP	CR
+	LD	A,48
+	JR	NZ,ERROR4	;"OF not last"
+CASE1:	XOR	A		;Level
+CASE0:	EXX
+	PUSH	HL		;Push to stack
+	EXX
+	PUSH	HL
+	PUSH	BC
+	LD	L,A		;Level
+	LD	BC,TOTHERWISE*256+TWHEN
+ 	LD	DE,TENDCASE*256+TOF
+	CALL	NSCAN1
+	POP	BC		;Restore from stack
+	POP	HL
+	EXX
+	POP	HL
+	EXX
+	LD	A,47
+	JP	NZ,ERROR	;Missing ENDCASE
+	LD	A,(IY-1)
+	CP	TENDCASE
+	JR	Z,CASE9
+	CP	TOTHERWISE
+	JR	Z,CASE9
+CASE4:	BIT	0,B		;Numeric or string?
+	JR	NZ,CASE3
+	PUSH	BC		;Type/exponent/length 
+	PUSH	HL		;MS 32 bits
+	EXX
+	PUSH	HL		;LS 32 bits
+	EXX
+	CALL	EXPRN
+	LD	IX,0
+	ADD	IX,SP		;Address stack
+	EXX
+	LD	E,(IX+0)	;Get LS 32-bits
+	LD	D,(IX+1)
+	EXX
+	LD	E,(IX+2)
+	LD	D,(IX+3)	;Get MS 32-bits
+	LD	B,(IX+4)	;Get exponent
+	LD	A,9
+	CALL	FPP		;In case integer vs float
+	LD	A,L
+	OR	A		;NZ if equal
+	EXX
+	POP	HL
+	EXX
+	POP	HL
+	POP	BC
+	JR	NZ,CASE5	;Match found
+CASE2:	LD	A,(IY)
+	INC	IY
+	CP	','
+	JR	Z,CASE4		;Not found, try another
+	EXX
+	PUSH	IY
+	EX	(SP),HL
+	LD	A,CR
+	LD	B,A
+	CPIR			;Find CR
+	EX	(SP),HL
+	POP	IY
+	EXX
+	LD	A,(IY-2)	;Last token in previous line
+	CP	TOF		;CASE statement in WHEN line
+	JR	NZ,CASE1
+	LD	A,1
+	JR	CASE0
+;
+;Finished, level stack if string:
+;
+CASE9:	BIT	0,B
+	JR	Z,CASE8
+	LD	H,0
+	LD	L,C
+	ADD	HL,SP
+	LD	SP,HL
+CASE8:	JP	XEQ
+;
+;Matched, so skip any more expressions:
+;
+CASE5:	CALL	NXT
+	CP	','
+	JR	NZ,CASE9	;End of list
+	INC	IY
+	PUSH	BC		;Save type and string length
+	CALL	EXPR		;Evaluate but discard
+	POP	BC
+	JR	CASE5
+;
+;String compare:
+;
+CASE3:	PUSH	BC
+	CALL	EXPRS
+	POP	BC
+	LD	HL,0
+	ADD	HL,SP
+	LD	B,E
+	LD	DE,ACCS
+	PUSH	BC
+	CALL	SCP		;String compare
+	POP	BC
+	LD	B,1
+	JR	NZ,CASE2
+	JR	CASE5
+;
+; WHILE
+;
+WHILE:	PUSH	IY		;Save current position
+	CALL	CHECK
+	CALL	WHICHK		;Push marker
+WHICHK:	CALL	EXPRI
+	CALL	TEST
+	JR	NZ,XEQGO5
+	POP	BC		;Pop marker
+	POP	BC		;Level stack
+	LD	BC,TWHILE+TENDWHILE*256
+	LD	D,1
+	CALL	WSRCH
+XEQGO5:	JP	XEQ
+;
+; ENDWHILE
+;
+ENDWHI:	POP	BC		;Marker
+	POP	DE		;Saved text pointer
+	PUSH	DE
+	PUSH	BC
+	OR	A
+	LD	HL,WHICHK
+	SBC	HL,BC
+	JR	Z,ENDWH1
+	LD	A,3
+	CALL	RESLOC
+	JR	NZ,ENDWHI
+	LD	A,46
+	JR	ERROR5		;"Not in a WHILE loop"
+;
+ENDWH1:	PUSH	IY
+	LD	IY,0
+	ADD	IY,DE
+	CALL	EXPRI
+	CALL	TEST
+	POP	DE		;Text pointer
+	JR	NZ,XEQGO5
+	POP	BC		;Junk marker
+	POP	BC		;Junk pointer
+	LD	IY,0
+	ADD	IY,DE
+	JR	XEQGO5
+;
+;CLS
+;
+CLS:	CALL	CLRSCN
+	XOR	A
+	LD	(COUNT),A
+	JP	XEQ
+;
+;STOP
+;
+STOP:	CALL	TELL
+	DEFB	CR
+	DEFB	LF
+	DEFB	TSTOP
+	DEFB	0
+	CALL	SETLIN		;FIND CURRENT LINE
+	CALL	SAYLN
+	CALL	CRLF
+	JP	CLOOP
+;
+;REPORT
+;
+REPOR:	CALL	REPORT
+	JP	XEQ
+;
+;CLEAR
+;
+CLR:	CALL	CLEAR
+	LD	HL,(PAGE)
+	JR	RESTR1
+;
+;RESTORE ERROR
+;
+RESERR:	INC	IY
+	LD	A,2
+	CALL	RESLOC
+	JP	NZ,XEQ
+	LD	A,53		;ON ERROR not LOCAL
+ERROR5:	JP	ERROR
+;
+;RESTORE DATA
+;
+RESDAT:	INC	IY
+	LD	A,1
+	CALL	RESLOC
+	JP	NZ,XEQ
+	LD	A,54		;'DATA not LOCAL'
+	DEFB	21H
+NOLINE:	LD	A,41		;'No such line'
+	JR	ERROR5
+;
+;RESTORE [line]
+;
+RESTOR:	CP	TERROR
+	JR	Z,RESERR
+	CP	TDATA
+	JR	Z,RESDAT
+	CP	'+'
+	JR	Z,RESREL
+	LD	HL,(PAGE)
+	CALL	TERMQ
+	JR	Z,RESTR1
+	CALL	ITEMI
+	EXX
+	CALL	FINDL		;SEARCH FOR LINE
+	JR	NZ,NOLINE
+RESTR1:	CALL	DSRCH
+	LD	(DATPTR),HL
+	JP	XEQ
+;
+RESREL:	CALL	EXPRI
+	EXX
+	EX	DE,HL
+	PUSH	IY
+	POP	HL
+	LD	A,CR
+	LD	B,A
+	CPIR			;FIND LINE END
+	DEC	E
+	JR	Z,RESTR1
+	JP	M,RESTR1
+	XOR	A
+	LD	B,A
+RESTR2:	LD	C,(HL)
+	CP	C
+	JR	Z,NOLINE
+	ADD	HL,BC
+	DEC	E
+	JR	NZ,RESTR2
+	JR	RESTR1
+;
+;PTR#channel=expr
+;PAGE=expr
+;TIME=expr
+;LOMEM=expr
+;HIMEM=expr
+;
+PTR:	CALL	CHANEL
+	CALL	EQUALS
+	LD	A,E
+	PUSH	AF
+	CALL	EXPRI
+	PUSH	HL
+	EXX
+	POP	DE
+	POP	AF
+	CALL	PUTPTR
+	JR	XEQGO1
+;
+PAGEV:	CALL	EQUALS
+	CALL	EXPRI
+	EXX
+	LD	L,0
+	LD	(PAGE),HL
+	JR	XEQGO1
+;
+TIMEV:	CP	'$'
+	JR	Z,TIMEVS
+	CALL	EQUALS
+	CALL	EXPRI
+	PUSH	HL
+	EXX
+	POP	DE
+	CALL	PUTIME
+	JR	XEQGO1
+;
+TIMEVS:	INC	IY		;SKIP '$'
+	CALL	EQUALS
+	CALL	EXPRS
+	CALL	PUTIMS
+	JR	XEQGO1
+;
+LOMEMV:	CALL	EQUALS
+	CALL	EXPRI
+	CALL	CLEAR
+	EXX
+	LD	(LOMEM),HL
+	LD	(FREE),HL
+	JR	XEQGO1
+;
+HIMEMV:	CALL	EQUALS
+	CALL	EXPRI
+	EXX
+	LD	DE,(FREE)
+	INC	D
+	XOR	A
+	SBC	HL,DE
+	ADD	HL,DE
+	JP	C,ERROR		;"No room"
+	LD	DE,(HIMEM)
+	LD	(HIMEM),HL
+	EX	DE,HL
+	SBC	HL,SP
+	JP	NZ,XEQ
+	EX	DE,HL
+	LD	SP,HL		;LOAD STACK POINTER
+XEQGO1:	JP	XEQ
+;
+;WIDTH expr
+;
+WIDTHV:	CALL	EXPRI
+	EXX
+	LD	A,L
+	LD	(WIDTH),A
+	JR	XEQGO1
+;
+;TRACE ON
+;TRACE OFF
+;TRACE line
+;
+TRACE:	INC	IY
+	LD	HL,0
+	CP	TON
+	JR	Z,TRACE0
+	CP	TOFF
+	JR	Z,TRACE1
+	DEC	IY
+	CALL	EXPRI
+	EXX
+TRACE0:	DEC	HL
+TRACE1:	LD	(TRACEN),HL
+	JR	XEQGO1
+;
+;VDU expr,expr;....
+;
+VDU:	CALL	EXPRI
+	EXX
+	LD	A,L
+	CALL	OSWRCH
+	LD	A,(IY)
+	CP	','
+	JR	Z,VDU2
+	CP	';'
+	JR	NZ,VDU3
+	LD	A,H
+	CALL	OSWRCH
+VDU2:	INC	IY
+VDU3:	CALL	TERMQ
+	JR	NZ,VDU
+	JR	XEQGO1
+;
+;CLOSE channel number
+;
+CLOSE:	CALL	CHANEL
+	CALL	OSSHUT
+	JR	XEQGO1
+;
+;BPUT #channel,byte
+;BPUT #channel,string[;]
+;
+BPUT:	CALL	CHANEL		;CHANNEL NUMBER
+	PUSH	DE
+	CALL	COMMA
+	CALL	EXPR
+	EX	AF,AF'
+	JP	M,BPUTS
+	CALL	SFIX
+	EXX
+	LD	A,L
+	POP	DE
+	CALL	OSBPUT
+BPUTX:	JR	XEQGO1
+;
+BPUTS:	LD	A,E
+	POP	DE
+	LD	D,A
+	LD	HL,ACCS
+BPUTS1:	LD	A,(HL)
+	INC	HL
+	CALL	OSBPUT
+	DEC	D
+	JR	NZ,BPUTS1
+	CALL	NXT
+	CP	';'
+	INC	IY
+	JR	Z,BPUTX
+	LD	A,LF
+	CALL	OSBPUT
+	DEC	IY
+	JR	BPUTX
+;
+;CALL address[,var[,var...]]
+;
+CALL:	CALL	EXPRI		;ADDRESS
+	EXX
+	PUSH	HL		;SAVE IT
+	LD	B,0		;PARAMETER COUNTER
+	LD	DE,BUFFER	;VECTOR
+CALL1:	CALL	NXT
+	CP	','
+	JR	NZ,CALL2
+	INC	IY
+	INC	B
+	CALL	NXT
+	PUSH	BC
+	PUSH	DE
+	CALL	VAR
+	POP	DE
+	POP	BC
+	INC	DE
+	LD	(DE),A		;PARAMETER TYPE
+	INC	DE
+	EX	DE,HL
+	LD	(HL),E		;PARAMETER ADDRESS
+	INC	HL
+	LD	(HL),D
+	EX	DE,HL
+	JR	CALL1
+CALL2:	LD	A,B
+	LD	(BUFFER),A	;PARAMETER COUNT
+	POP	HL		;RESTORE ADDRESS
+	CALL	USR1
+	JP	XEQ
+;
+;USR(address)
+;
+USR:	CALL	ITEMI
+	EXX
+USR1:	PUSH	HL		;ADDRESS ON STACK
+	EX	(SP),IY
+	INC	H		;PAGE &FF?
+	LD	HL,USR2		;RETURN ADDRESS
+	PUSH	HL
+	LD	IX,STAVAR
+	CALL	Z,OSCALL	;INTERCEPT PAGE &FF
+	LD	C,(IX+24)
+	PUSH	BC
+	POP	AF		;LOAD FLAGS
+	LD	A,(IX+4)	;LOAD Z80 REGISTERS
+	LD	B,(IX+8)
+	LD	C,(IX+12)
+	LD	D,(IX+16)
+	LD	E,(IX+20)
+	LD	H,(IX+32)
+	LD	L,(IX+48)
+	LD	IX,BUFFER
+	JP	(IY)		;OFF TO USER ROUTINE
+USR2:	POP	IY
+	XOR	A
+	LD	C,A
+	RET
+;
+; LEFT$(A$[,N]) = string
+; MID$(A$,N[,M]) = string
+; RIGHT$(A$[,N]) = string
+;
+LEFTSL: CALL    GETSTR
+	LD	HL,0FF00H	;Default all but last
+	JR	NZ,MIDSL1
+	JR	MIDSL0
+;
+RITESL: CALL	GETSTR
+	LD	HL,0FFFFH	;Default last char only
+	JR	NZ,MIDSL1
+	JR	MIDSL0
+;
+MIDSL:	CALL	GETSTR
+	LD	A,5
+	JP	NZ,ERROR	;'Missing comma'
+	INC	IY
+	PUSH	IX
+	CALL	EXPRI
+	POP	IX
+	EXX
+	CALL	NXT
+	DEC	L
+	LD	H,254		;Default rest of string
+	CP	','
+	JR	NZ,MIDSL1
+MIDSL0:	INC	IY
+	PUSH	HL
+	PUSH	IX
+	CALL	EXPRI
+	POP	IX
+	EXX
+	LD	A,L
+	POP	HL
+	OR	A
+	JR	Z,MIDSL2	;Zero length
+	DEC	A
+	ADD	A,L
+	LD	H,A
+	JR	NC,MIDSL1
+	LD	A,L
+	INC	A
+	JR	Z,MIDSL1
+	LD	H,254
+	JR	MIDSL1
+;
+MIDSL2:	LD	HL,1
+MIDSL1:	CALL	BRAKET
+	CALL	EQUALS
+	PUSH	HL
+	PUSH	IX
+	CALL	EXPRS
+	POP	IX
+	POP	HL
+	LD	C,E
+	LD	B,(IX+0)
+	LD	E,(IX+2)
+	LD	D,(IX+3)
+;
+; Source string at ACCS, length C
+; Destination string at DE, length B
+; L = first character to modify 0-254
+; H =  last character to modify 0-254
+; IF L=255 THEN modify rightmost H + 2 chars
+; ELSE IF H=255 modify all but last character
+; ELSE IF L > H do nothing
+; IX = destination VARPTR
+;
+	LD	A,L
+	INC	A
+	JR	NZ,SUBSL1
+	INC	H
+	INC	H
+	LD	A,C
+	CP	H
+	JR	NC,SUBSL0
+	LD	H,A
+SUBSL0:	LD	A,B
+	SUB	H
+	JR	NC,SUBSL6
+	XOR	A
+SUBSL6:	LD	L,A
+	JR	SUBSL5
+;
+SUBSL1:	LD	A,H
+	INC	A
+	JR	NZ,SUBSL2
+	LD	A,B
+	SUB	2
+	JR	C,SUBSL9
+	LD	H,A
+SUBSL2:	LD	A,L
+	CP	B
+	JR	NC,SUBSL9
+	LD	A,H
+	CP	B
+	JR	C,SUBSL3
+SUBSL5:	LD	A,B
+	DEC	A
+	LD	H,A
+SUBSL3:	LD	A,H
+	SUB	L
+	JR	C,SUBSL9
+	INC	A
+	CP	C
+	JR	C,SUBSL4
+	LD	A,C
+SUBSL4:	LD	B,0
+	LD	H,B
+	LD	C,A
+	OR	A
+	JR	Z,SUBSL9
+	EX	DE,HL
+	ADD	HL,DE
+	EX	DE,HL
+	LD	HL,ACCS
+	LDIR
+SUBSL9:	JP	XEQ
+;
+; EXIT FOR [var]
+; EXIT REPEAT
+; EXIT WHILE
+;
+EXIT:	INC	IY		;Skip FOR/REPEAT/WHILE
+	CP	TFOR
+	JR	NZ,EXIT0
+	LD	IX,0		;For EXIT FOR <var>
+	CALL	TERMQ
+	CALL	NZ,GETVAR
+	LD	A,TFOR
+EXIT0:	LD	D,1		;Level for WSRCH
+	LD	E,A
+EXIT1:	LD	A,E
+	POP	BC		;Marker
+	LD	HL,FORCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,EXIT4
+	LD	HL,REPCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,EXIT6
+	LD	HL,WHICHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,EXIT7
+	PUSH	BC		;Put back marker
+	PUSH	IX
+	POP	BC
+	EXX
+	LD	A,3
+	CALL	RESLOC
+	EXX
+	PUSH	BC
+	POP	IX
+	JR	NZ,EXIT1
+	LD	A,44
+	JP	ERROR		;'Bad EXIT'
+;
+EXIT4:	POP	BC		;VARPTR
+	LD	HL,14		;Skip text pointer, limit & step
+	ADD	HL,SP
+	LD	SP,HL		;Pop FOR record
+	CP	TFOR
+	JR	NZ,EXIT1
+	PUSH	IX
+	POP	HL
+	LD	A,H
+	OR	L
+	JR	Z,EXIT5
+	SBC	HL,BC
+EXIT5:	LD	BC,TFOR+TNEXT*256
+	JR	Z,EXIT8
+	INC	D		;Count nested FOR loops
+	JR	EXIT1
+;
+EXIT6:	POP	BC		;Text pointer
+	CP	TREPEAT
+	JR	NZ,EXIT1
+	LD	BC,TREPEAT+TUNTIL*256
+	JR	EXIT8
+;
+EXIT7:	POP	BC		;Text pointer
+	CP	TWHILE
+	JR	NZ,EXIT1
+	LD	BC,TWHILE+TENDWHILE*256
+EXIT8:	CALL	WSRCH
+	CALL	SPAN		;Skip UNTIL expression
+	JP	XEQ
+;
+;PUT port,data
+;
+PUT:	CALL	EXPRI		;PORT ADDRESS
+	EXX
+	PUSH	HL
+	CALL	COMMA
+	CALL	EXPRI		;DATA
+	EXX
+	POP	BC
+	OUT	(C),L		;OUTPUT TO PORT BC
+	JP	XEQ
+;
+;SUBROUTINES:
+;
+;ASSIGN - Assign a numeric value to a variable.
+;Outputs: NC,  Z     - OK, numeric scalar
+;         NC, NZ, PE - OK, string array  (D = type, E = operator)
+; else if NC, NZ, P  - OK, numeric array (D = type, E = operator)
+; else if NC, NZ     - OK, string scalar
+;          C, NZ     - illegal / invalid
+;
+ASSIGN:	CALL	GETVAR		;VARIABLE
+	RET	C		;ILLEGAL VARIABLE
+	CALL	NZ,PUTVAR
+	LD	D,A		;Type
+	CALL	NXT
+	INC	IY
+	LD	E,A		;Operator (or =)
+	CP	'='
+	CALL	NZ,EQUALS
+	LD	A,D
+	AND	11000000B	
+	RET	NZ		;String or array
+	PUSH	DE
+	PUSH	HL
+	CALL	EXPRN
+	POP	IX
+	POP	DE
+;
+; Falls through to...
+;
+; MODIFY - Update numeric variable according to operator:
+;   Inputs: D = type
+;           E = operator
+;           HLH'L'C = value
+;           IX = destination VARPTR
+; Destroys: Everything except IX,IY,SP
+; 
+MODIFY:	LD	A,E
+	CP	'='
+	JR	Z,STORE0	;Simple assignment
+	PUSH	DE
+	EXX
+	EX	DE,HL
+	EXX
+	EX	DE,HL
+	LD	B,C
+	EX	(SP),HL
+	LD	A,H
+	EX	(SP),HL
+	CALL	LOADN
+	EX	(SP),HL
+	LD	A,L
+	EX	(SP),HL
+	AND	15
+	PUSH	IX
+	CALL	FPP
+	POP	IX
+	POP	DE
+	JP	C,ERROR
+STORE0:	LD	A,D		;Type
+STOREN:	CP	5
+	JR	Z,STORE5
+	PUSH	AF
+	INC	C		;SPEED - & PRESERVE F'
+	DEC	C		; WHEN CALLED BY FNEND0
+	CALL	NZ,SFIX		;CONVERT TO INTEGER
+	POP	AF
+	CP	4
+	JR	Z,STORE4
+	CP	A		;SET ZERO
+STORE1:	EXX
+	LD	(IX+0),L
+	EXX
+	RET
+;
+STORE5:	LD	(IX+4),C
+STORE4:	EXX
+	LD	(IX+0),L
+	LD	(IX+1),H
+	EXX
+	LD	(IX+2),L
+	LD	(IX+3),H
+	RET
+;
+; MODIFS - Update string variable according to operator:
+;   Inputs: H = type
+;           L = operator (= or +)
+;           E = string length (string in accumulator)
+;           IX = destination VARPTR
+; Destroys: Everything except SP, IY
+;
+MODIFS:	LD	A,L		;Operator
+	CP	'+'
+	LD	A,H		;Type
+	JR	NZ,STACCS
+	PUSH	IY
+	PUSH	IX
+	POP	IY
+	CALL	PUSHS
+	PUSH	IY
+	POP	IX
+	CALL	LOADS
+	POP	BC
+	LD	A,B		;Type
+	INC	C
+	DEC	C
+	JR	Z,MODFS1	;Zero length
+	LD	HL,0
+	LD	B,H
+	ADD	HL,SP
+	LDIR
+	LD	SP,HL
+MODFS1:	POP	IY
+;
+; Falls through to:
+;
+STACCS:	LD	HL,ACCS
+STORES:	RRA
+	JR	NC,STORS3	;FIXED STRING
+	PUSH	HL
+	CALL	LOAD4
+	LD	A,E		;LENGTH OF STRING
+	EXX
+	LD	L,A
+	LD	A,H		;LENGTH ALLOCATED
+	EXX
+	CP	E
+	JR	NC,STORS1	;ENOUGH ROOM
+	EXX
+	LD	H,L
+	EXX
+	PUSH	HL
+	LD	B,0
+	LD	C,A
+	ADD	HL,BC
+	LD	BC,(FREE)
+	SBC	HL,BC		;IS STRING LAST?
+	POP	HL
+	JR	Z,STORS0
+	LD	H,B
+	LD	L,C		;DESTINATION
+;
+	OR	A		;V5 optimisation
+	JR	Z,STORS0
+	LD	A,E
+STORS2:	LD	E,A
+	DEC	E
+	AND	E
+	JR	NZ,STORS2
+	SCF
+	RL	E
+	LD	A,E
+	EXX
+	LD	H,A
+	EXX
+;
+STORS0:	SCF
+STORS1:	CALL	STORE4		;PRESERVES CARRY!
+	LD	B,0
+	LD	C,E
+	EX	DE,HL
+	POP	HL
+	DEC	C
+	INC	C
+	RET	Z		;NULL STRING
+	LDIR
+	RET	NC		;STRING REPLACED
+	LD	(FREE),DE
+CHECK:	PUSH	HL
+	LD	HL,(FREE)
+	INC	H
+	SBC	HL,SP
+	POP	HL
+	RET	C
+	XOR	A
+	JP	ERROR		;"No room"
+;
+STORS3:	LD	C,E
+	PUSH	IX
+	POP	DE
+	XOR	A
+	LD	B,A
+	CP	C
+	JR	Z,STORS5
+	LDIR
+STORS5:	LD	A,CR
+	LD	(DE),A
+	RET
+;
+; SAVRET - SAVE 'RETURNed' PARAMETER INFO
+;
+SAVRET:	LD	(IX+0),L		;Formal VARPTR
+	LD	(IX+1),H
+	LD	(IX+2),A
+	EX	(SP),IY
+	PUSH	AF
+	PUSH	IY
+	PUSH	IX
+	CALL	NXT
+	CALL	VAR
+	POP	IX
+	LD	(IX+4),L		;Actual VARPTR
+	LD	(IX+5),H
+	LD	(IX+6),A
+	POP	IY
+	POP	AF
+	LD	BC,8
+	ADD	IX,BC
+	JR	ARGUE0
+;
+;ARGUE: TRANSFER FN OR PROC ARGUMENTS FROM THE
+; CALLING STATEMENT TO THE DUMMY VARIABLES VIA
+; THE STACK.  IT MUST BE DONE THIS WAY TO MAKE
+; PROCFRED(A,B)    DEF PROCFRED(B,A)     WORK.
+;   Inputs: DE addresses parameter list 
+;           IY addresses dummy variable list
+;           IX addresses RETURNed parameter data block
+;  Outputs: DE,IY updated
+; Destroys: Everything
+;
+ARGUE:	LD	A,-1
+	PUSH	AF		;PUT MARKER ON STACK
+ARGUE1:	INC	IY		;BUMP PAST ( OR ,
+	INC	DE
+	PUSH	DE
+	LD	B,0
+	CALL	NXT
+	CP	TRETURN
+	JR	NZ,ARGUE9
+	INC	IY		;SKIP 'RETURN'
+	CALL	NXT
+	INC	B		;FLAG 'RETURN'
+ARGUE9:	PUSH	BC
+	PUSH	IX
+	CALL	GETVAR		;FORMAL PARAMETER
+	JR	C,ARGERR
+	CALL	NZ,PUTVAR
+	POP	IX
+	POP	BC
+	POP	DE
+	PUSH	HL		;VARPTR
+	PUSH	AF
+	PUSH	DE
+	DEC	B
+	JR	Z,SAVRET
+	EX	(SP),IY
+ARGUE0:	BIT	6,A		;ARRAY?
+	JR	NZ,ARGUE3
+	OR	A		;TYPE
+	JP	M,ARGUE2	;STRING
+	PUSH	IX
+	CALL	EXPRN		;ACTUAL PARAMETER
+	POP	IX
+	EX	(SP),IY
+	POP	DE
+	POP	AF
+	EXX
+	PUSH	HL
+	EXX
+	PUSH	HL
+	LD	B,A
+	PUSH	BC
+	JR	ARGUE4
+;
+ARGUE2:	PUSH	IX
+	CALL	EXPRS
+	EXX
+	POP	BC
+	EX	(SP),IY
+	POP	DE
+	EXX
+	POP	AF
+	CALL	PUSHS
+	EXX
+	PUSH	BC
+	POP	IX
+ARGUE4:	CALL	NXT
+	CP	','
+	JR	NZ,ARGUE5
+	LD	A,(DE)
+	CP	','
+	JR	Z,ARGUE1	;ANOTHER
+ARGERR:	LD	A,31
+	JP	ERROR		;"Bad arguments"
+;
+ARGUE3:	PUSH	IX
+	CALL	NXT
+	CALL	GETVAR
+	JR	C,ARGERR
+	LD	C,(IX+0)
+	LD	B,(IX+1)
+	POP	IX
+	CALL	NXT
+	EX	(SP),IY
+	POP	DE
+	POP	AF
+	PUSH	BC		;STACK ARRAY POINTER
+	PUSH	AF		;STACK TYPE
+	JR	ARGUE4
+;
+ARGUE5:	CALL	BRAKET
+	LD	A,(DE)
+	CP	')'
+	JR	NZ,ARGERR
+	INC	DE
+UNSTAK:	EXX
+ARGUE6:	POP	BC
+	LD	A,B
+	INC	A
+	EXX
+	RET	Z		;MARKER POPPED
+	EXX
+	DEC	A
+	BIT	6,A		;ARRAY
+	JR	NZ,ARGUE8
+	OR	A
+	JP	M,ARGUE7	;STRING
+	POP	HL
+	EXX
+	POP	HL
+	EXX
+	POP	IX
+	CALL	STOREN		;WRITE TO DUMMY
+	JR	ARGUE6
+;
+ARGUE7:	CALL	POPS
+	POP	IX
+	CALL	STACCS
+	JR	ARGUE6
+;
+ARGUE8:	POP	BC		;ARRAY POINTER
+	POP	IX
+	LD	(IX+0),C
+	LD	(IX+1),B
+	JR	ARGUE6
+;
+;Restore RETURNed parameters, via the stack to ensure that
+; PROCFRED(A,B)    DEF PROCFRED(RETURN B,RETURN A)  works.
+;
+RETXFR:	LD	A,-1
+	PUSH	AF		;PUT MARKER ON STACK
+RETXF1:	EXX
+	LD	L,(IX+4)	;Actual parameter (destination)
+	LD	H,(IX+5)
+	PUSH	HL		;STACK VARPTR
+	LD	L,(IX+0)	;Formal parameter (source)
+	LD	H,(IX+1)
+	LD	A,(IX+2)
+	BIT	6,A		;ARRAY?
+	JR	NZ,RETXF3
+	OR	A		;TYPE
+	JP	M,RETXF2	;STRING
+	PUSH	HL
+	EX	(SP),IX
+	CALL	LOADN
+	POP	IX
+	EXX			;STACK VALUE
+	PUSH	HL
+	EXX
+	PUSH	HL
+RETXF6:	LD	B,(IX+6)
+	PUSH	BC		;TYPE & EXPONENT
+RETXF5:	CALL	CHECK		;CHECK ROOM
+	JR	RETXF4
+;
+RETXF3:	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)
+	PUSH	DE		;STACK ARRAY POINTER
+	JR	RETXF6
+;
+RETXF2:	PUSH	HL
+	EX	(SP),IX
+	CALL	LOADS
+	POP	IX
+	LD	A,(IX+6)
+	EXX
+	PUSH	IX
+	POP	HL
+	EXX
+	CALL	PUSHS
+	EXX
+	PUSH	HL
+	POP	IX
+	EXX
+RETXF4:	LD	DE,8
+	ADD	IX,DE
+	EXX
+	DJNZ	RETXF1
+	JP	UNSTAK
+;
+;Restore 'RETURNed' parameters, 
+;
+RESRET:	POP	BC		;B = 'RETURN' COUNT
+	LD	H,0
+	LD	L,B
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,HL		;RETURN COUNT * 8
+	ADD	HL,SP
+	LD	IX,0
+	ADD	IX,SP		;ADDRESS PARAMETER LIST
+	PUSH	AF
+	PUSH	DE
+	PUSH	HL
+	EXX
+	PUSH	BC
+	PUSH	DE
+	EXX
+	LD	A,B
+	LD	HL,ACCS
+	LD	DE,BUFFER
+	LD	BC,255
+	LDIR
+	LD	B,A
+	CALL	RETXFR		;TRANSFER VIA STACK
+	LD	HL,BUFFER
+	LD	DE,ACCS
+	LD	BC,255
+	LDIR
+	EXX
+	POP	DE
+	POP	BC
+	EXX
+	POP	HL
+	POP	DE
+	POP	AF
+	JR	RESAR1
+;
+; Restore LOCAL array or memory block:
+;
+RESARR:	POP	BC
+	BIT	7,B		;String array?
+	POP	HL
+	POP	BC
+	ADD	HL,BC
+	ADD	HL,SP
+	CALL	NZ,FREESA	;Free string array
+RESAR1:	LD	SP,HL
+	JR	RESLO1
+;
+; RESLOC - Restore local variables/arrays or DATA/ERROR status from stack
+;   Inputs: A = 0 if everything OK, bit0 set if DATPTR, bit1 set if ERRTRP
+;  Outputs: Z if nothing was restored, NZ if something was restored
+; Destroys: A,B,C,D,E,H,L,H',L',IX,SP,flags
+;
+RESLOC:	POP	DE		;Return address
+	LD	IX,0		;To flag nothing was restored
+RESLO1:	POP	BC		;Marker ?
+	LD	HL,LOCCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,RESLO2	;Something to restore
+	OR	A
+	JR	NZ,RESLO8
+	LD	HL,RETCHK
+	SBC	HL,BC
+	JR	Z,RESRET
+	LD	HL,ARRCHK
+	OR	A
+	SBC	HL,BC
+	JR	Z,RESARR
+RESLO8:	PUSH	IX
+	POP	HL
+	LD	A,H
+	OR	L
+RESLO0:	PUSH	BC		;Put back marker
+	EX	DE,HL
+	JP	(HL)		;Return
+;
+RESLO2:	POP	IX		;Variable pointer
+	OR	A
+	JR	Z,RESLO3	;Everything allowed
+	PUSH	IX
+	POP	BC
+	BIT	0,A
+	JR	Z,RESLO6	;Bit 0 set, so
+	LD	HL,DATPTR	;test for DATPTR
+	SBC	HL,BC
+	JR	Z,RESLO3
+RESLO6:	OR	A
+	BIT	1,A
+	JR	Z,RESLO7	;Bit 1 set, so
+	LD	HL,ERRTRP	;test for ERRPTR
+	SBC	HL,BC
+	JR	Z,RESLO3
+RESLO7:	PUSH	BC		;Put back pointer
+	LD	BC,LOCCHK
+	JR	RESLO0
+;
+RESLO3:	POP	BC		;Type / exponent
+	BIT	6,B
+	JR	NZ,RESLO4	;Array?
+	BIT	7,B
+	JR	NZ,RESLO5	;String?
+	POP	HL
+	EXX
+	POP	HL
+	EXX
+	BIT	4,B
+	JR	NZ,RESLO1
+	PUSH	AF
+	LD	A,B
+	CALL	STOREN		;Numeric
+	POP	AF
+	JR	RESLO1
+;
+RESLO4:	POP	HL
+	BIT	4,B
+	JR	NZ,RESLO1
+	LD	(IX+0),L	;Array
+	LD	(IX+1),H
+	JR	RESLO1
+;
+RESLO9:	LD	B,0
+	ADD	HL,BC
+	LD	SP,HL
+RESLGO:	JR	RESLO1
+;
+RESLO5:	LD	HL,0
+	ADD	HL,SP
+	BIT	4,B
+	JR	NZ,RESLO9
+	PUSH	AF
+	PUSH	DE
+	LD	E,C
+	LD	A,B
+	CALL	STORES		;String
+	POP	DE
+	POP	AF
+	LD	SP,HL
+	JR	RESLGO
+;
+;SAVLOC: SUBROUTINE TO STACK LOCAL PARAMETERS
+;  OF A FUNCTION OR PROCEDURE.
+;THERE IS A LOT OF STACK MANIPULATION - CARE!!
+;   Inputs: IY is parameters pointer
+;  Outputs: IY updated
+;           A' incremented for each RETURN
+; Destroys: A',A,B,C,D,E,H,L,IX,IY,F,SP
+;
+SAVLOC:	POP	DE		;RETURN ADDRESS
+SAVLO1:	INC	IY		;BUMP PAST ( OR ,
+	CALL	NXT
+	CP	TRETURN
+	JR	NZ,SAVLO6
+	EX	AF,AF'
+	INC	A		;RETURN counter
+	EX	AF,AF'
+	INC	IY		;Bump past RETURN
+	CALL	NXT
+SAVLO6:	PUSH	DE
+	EXX
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	EXX
+	CALL	VAR		;DUMMY VARIABLE
+	EXX
+	POP	HL
+	POP	DE
+	POP	BC
+	EXX
+	POP	DE
+	BIT	6,A		;ARRAY?
+	JR	NZ,SAVLO3
+	OR	A		;TYPE
+	JP	M,SAVLO2	;STRING
+	EXX
+	PUSH	HL		;SAVE H'L'
+	EXX
+	LD	B,A		;TYPE
+	CALL	LOADN
+	EXX
+	EX	(SP),HL
+	EXX
+	PUSH	HL
+	PUSH	BC
+	JR	SAVLO4
+;
+SAVLO3:	LD	C,(IX+0)	;ARRAY POINTER
+	LD	B,(IX+1)
+	PUSH	BC		;SAVE TO STACK
+	PUSH	AF		;SAVE TYPE
+	JR	SAVLO4
+;
+SAVLO2:	PUSH	AF		;STRING TYPE
+	PUSH	DE
+	EXX
+	PUSH	HL
+	EXX
+	CALL	LOADS
+	EXX
+	POP	HL
+	EXX
+	LD	C,E
+	POP	DE
+	CALL	CHECK
+	POP	AF		;LEVEL STACK
+	LD	HL,0
+	LD	B,L
+	SBC	HL,BC
+	ADD	HL,SP
+	LD	SP,HL
+	LD	B,A		;TYPE
+	PUSH	BC
+	JR	Z,SAVLO4
+	PUSH	DE
+	LD	DE,ACCS
+	EX	DE,HL
+	LD	B,L
+	LDIR			;SAVE STRING ON STACK
+	POP	DE
+SAVLO4:	PUSH	IX		;VARPTR
+	CALL	SAVLO5
+LOCCHK	EQU	$
+SAVLO5:	CALL	CHECK
+	CALL	NXT
+	CP	','		;MORE?
+	JR	Z,SAVLO1
+	EX	DE,HL
+	JP	(HL)		;"RETURN"
+;
+TERMQ:	CALL	NXT
+	CP	TELSE
+	RET	NC
+	CP	':'		;ASSEMBLER SEPARATOR
+	RET	NC
+	CP	CR
+	RET
+;
+SPAN:	CALL	TERMQ
+	RET	Z
+	INC	IY
+	CP	'"'
+	CALL	Z,QUOTE
+	JR	SPAN
+;
+EQUALS:	CALL	NXT
+	INC	IY
+	CP	'='
+	RET	Z
+	LD	A,4
+	JP	ERROR		;"Mistake"
+;
+FORMAT:	CP	TTAB
+	JR	Z,DOTAB
+	CP	TSPC
+	JR	Z,DOSPC
+	CP	''''
+	RET	NZ
+	CALL	CRLF
+	XOR	A
+	RET
+;
+DOTAB:	PUSH	BC
+	CALL	EXPRI
+	EXX
+	POP	BC
+	LD	A,(IY)
+	CP	','
+	JR	Z,DOTAB1
+	CALL	BRAKET
+	LD	A,L
+TABIT:	LD	HL,COUNT
+	CP	(HL)
+	RET	Z
+	PUSH	AF
+	CALL	C,CRLF
+	POP	AF
+	SUB	(HL)
+	JR	SPACES
+DOTAB1:	INC	IY
+	PUSH	BC
+	PUSH	HL
+	CALL	EXPRI
+	EXX
+	POP	DE
+	POP	BC
+	CALL	BRAKET
+	CALL	PUTCSR
+	XOR	A
+	RET
+;
+DOSPC:	PUSH	BC
+	CALL	ITEMI
+	EXX
+	LD	A,L
+	POP	BC
+SPACES:	OR	A
+	RET	Z
+	PUSH	BC
+	LD	B,A
+FILL1:	LD	A,' '
+	CALL	OUTCHR
+	DJNZ	FILL1
+	POP	BC
+	XOR	A
+	RET
+;
+PTEXT:	LD	HL,ACCS
+	INC	E
+PTEXT1:	DEC	E
+	RET	Z
+	LD	A,(HL)
+	INC	HL
+	CALL	OUTCHR
+	JR	PTEXT1
+;
+FETCHS:	PUSH	AF
+	PUSH	BC
+	PUSH	HL
+	EX	(SP),IY
+	CALL	XTRACT
+	CALL	NXT
+	EX	(SP),IY
+	POP	HL
+	POP	BC
+	POP	AF
+	RET
+;
+LINES:	LD	DE,ACCS
+LINE1S:	LD	A,(HL)
+	LD	(DE),A
+	CP	CR
+	RET	Z
+	INC	HL
+	INC	E
+	JR	LINE1S
+;
+XTRACT:	CALL	NXT
+	CP	'"'
+	INC	IY
+	JP	Z,CONS
+	DEC	IY
+	LD	DE,ACCS
+XTRAC1:	LD	A,(IY)
+	LD	(DE),A
+	CP	','
+	RET	Z
+	CP	CR
+	RET	Z
+	INC	IY
+	INC	E
+	JR	XTRAC1
+;
+DSRCH:	LD	A,TDATA
+SEARCH:	LD	B,0
+SRCH1:	LD	C,(HL)
+	INC	C
+	DEC	C
+	JR	Z,SRCH2		;FAIL
+	INC	HL
+	INC	HL
+	INC	HL
+	CP	(HL)
+	RET	Z
+	DEC	C
+	DEC	C
+	DEC	C
+	ADD	HL,BC
+	JP	SRCH1
+SRCH2:	DEC	HL		;POINT TO CR
+	SCF
+	RET
+;
+; NSCAN - scan for token at start of line, with nesting of inner structures
+; Alternative entry at NSCAN1 with L = level (used by CASE)
+;
+;   Inputs: B = token to find (1, start of line)
+;           C = token to find (2, start of line)
+;           E = token to nest (end of line)
+;           D = token to unnest (start of line)
+;           IY = start search area (line length byte)
+;  Outputs: NZ if not found
+;           Z if found, IY points to byte after token
+; Destroys: A,B,C,L,IY,F
+;
+NSCAN:	LD	L,0		;nest level
+NSCAN1:	LD	A,(IY)		;get line length
+	OR	A		;test zero = end of prog
+	JR	Z,NSCAN6
+	LD	A,(IY+3)	;initial token
+	CP	B		;test value reqd
+	JR	Z,NSCAN3	;found (1)
+	CP	C
+	JR	Z,NSCAN3	;found (2)
+NSCAN7:	CP	D		;unnest?
+	JR	Z,NSCAN5
+NSCAN2:	PUSH	BC
+	LD	B,0
+	LD	C,(IY)
+	ADD	IY,BC		;go to next line
+	LD	A,(IY-2)
+	CP	E		;nest?
+	LD	A,C	
+	POP	BC
+	JR	NZ,NSCAN1	;continue
+	CP	5		;empty line ?
+	JR	C,NSCAN1	;continue
+	INC	L		;increment nest level
+	JR	NSCAN1		;continue
+;
+NSCAN3:	INC	L
+	DEC	L
+	JR	NZ,NSCAN7
+NSCAN4:	LD	BC,4
+	ADD	IY,BC
+	XOR	A		;Z
+	RET
+;
+NSCAN5:	DEC	L		;decrement nest level
+	JP	P,NSCAN2
+	JR	NSCAN4
+;
+NSCAN6:	OR	1		;NZ
+	RET
+;
+; WSRCH - search for token, with nesting of inner structures
+;
+;   Inputs: B = token to find or unnest (anywhere)
+;           C = token to nest (anywhere), ignore after EXIT
+;           D = ordinal (1 = find first token, 2 = second)
+;           IY = address to start looking
+;  Outputs: IY points to byte after that found
+;           if not found abort to END
+; Destroys: A,D,IY,F
+;
+WSRCH:	LD	A,(IY)
+	INC	IY
+	CP	'"'
+	CALL	Z,QUOTE
+	CP	TREM
+	JR	Z,WSRCHM
+	CP	TEXIT
+	JR	Z,WSRCHE
+	CP	B
+	JR	Z,WSRCHX
+	CP	C
+	JR	Z,WSRCHP
+	CP	CR
+	JR	NZ,WSRCH
+WSRCH1:	LD	A,(IY)			;Line length
+	INC	IY
+	OR	A
+	JP	Z,END
+	INC	IY
+	INC	IY			;Skip line number
+	LD	A,(IY)
+	CP	TDATA
+	JR	NZ,WSRCH
+WSRCHM:	LD	A,(IY)
+	INC	IY
+	CP	CR
+	JR	NZ,WSRCHM		;Skip to end of line
+	JR	WSRCH1
+;
+WSRCHP:	INC	D
+	JR	WSRCH
+;
+WSRCHX:	DEC	D
+	JR	NZ,WSRCH
+	RET
+;
+WSRCHE:	CALL	NXT
+	INC	IY
+	JR	WSRCH
+;
+; QUOTE - skip quoted string
+;
+QUOTE:	LD	A,(IY)
+	INC	IY
+	CP	CR
+	JP	Z,MISQUO
+	CP	'"'
+	JR	NZ,QUOTE
+	RET
+;
+MISQUO:	LD	A,9
+	JP	ERROR		;"Missing quote"
+;
+; X14OR5 - multiply by 1, 4 or 5
+;   Inputs: DE = number to be multiplied
+;           A = 1, 4 or 5 (else multiply by 4)
+;  Outputs: DE = DE * A
+;           Carry set if overflow
+; Destroys: D,E,H,L,F
+;
+X14OR5:	LD	H,D
+	LD	L,E
+	CP	1
+	RET	Z
+	CP	5
+	ADD	HL,HL
+	RET	C
+	ADD	HL,HL
+	RET	C
+	EX	DE,HL
+	RET	NZ
+	ADD	HL,DE
+	EX	DE,HL
+	RET
+;
+; MUL16 - 16-bit multiply
+;   Inputs: HL = number to be multiplied
+;           BC = multiplier
+;  Outputs: HL = HL * BC
+;           Carry set if overflow
+; Destroys: A,D,E,H,L,F
+;
+MUL16:	EX	DE,HL
+	LD	HL,0
+	LD	A,16
+MUL161:	ADD	HL,HL
+	RET	C		;OVERFLOW
+	SLA	E
+	RL	D
+	JR	NC,MUL162
+	ADD	HL,BC
+	RET	C
+MUL162:	DEC	A
+	JR	NZ,MUL161
+	RET
+;
+CHANEL:	CALL	NXT
+	CP	'#'
+	LD	A,45
+	JP	NZ,ERROR	;"Missing #"
+CHNL:	INC	IY		;SKIP '#'
+	CALL	ITEMI
+	EXX
+	EX	DE,HL
+	RET
+;
+; FREESA - Free members of a string array if adjacent to the top of heap
+;   Inputs: BC = length of array (= 4 * number of elements)
+;           HL addresses array first byte *above* array
+;  Outputs: NZ if any array element freed, Z if none
+; Destroys: nothing
+;
+FREESA:	PUSH	AF
+FREES0:	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	XOR	A
+	LD	D,B
+	LD	E,C
+	LD	B,A
+FREES1:	PUSH	DE
+	DEC	HL
+	LD	D,(HL)
+	DEC	HL
+	LD	E,(HL)
+	DEC	HL
+	LD	C,(HL)
+	DEC	HL
+	PUSH	HL
+	LD	HL,(FREE)
+	EX	DE,HL
+	ADD	HL,BC
+	SBC	HL,DE
+	JR	NZ,FREES2
+	ADD	HL,DE
+	SBC	HL,BC
+	LD	(FREE),HL
+	OR	H
+FREES2:	POP	DE
+	POP	HL
+	LD	C,4
+	OR	A
+	SBC	HL,BC
+	EX	DE,HL
+	JR	NZ,FREES1
+	OR	A
+	POP	HL
+	POP	DE
+	POP	BC
+	OR	A
+	JR	NZ,FREES0
+	POP	AF
+	RET
+;
+	END
diff --git a/Source/Apps/BBCBASIC/hook.z80 b/Source/Apps/BBCBASIC/hook.z80
new file mode 100644
index 00000000..f5619647
--- /dev/null
+++ b/Source/Apps/BBCBASIC/hook.z80
@@ -0,0 +1,64 @@
+	NAME	('HOOK')
+;
+	GLOBAL	CLG
+	GLOBAL	COLOUR
+	GLOBAL	DRAW
+	GLOBAL	ENVEL
+	GLOBAL	GCOL
+	GLOBAL	MODE
+	GLOBAL	MOVE
+	GLOBAL	PLOT
+	GLOBAL	SOUND
+	GLOBAL	PUTIMS
+	GLOBAL	CIRCLE
+	GLOBAL	ELLIPSE
+	GLOBAL	FILL
+	GLOBAL	MOUSE
+	GLOBAL	ORIGIN
+	GLOBAL	RECTAN
+	GLOBAL	LINE
+	GLOBAL	TINT
+	GLOBAL	WAIT
+	GLOBAL	SYS
+;
+	GLOBAL	ADVAL
+	GLOBAL	POINT
+	GLOBAL	GETIMS
+	GLOBAL	TINTFN
+	GLOBAL	MODEFN
+	GLOBAL	WIDFN
+;
+	EXTRN	EXTERR
+;
+CLG:
+COLOUR:
+DRAW:
+ENVEL:
+GCOL:
+MODE:
+MOVE:
+PLOT:
+SOUND:
+ADVAL:
+POINT:
+GETIMS:
+PUTIMS:
+CIRCLE:
+ELLIPSE:
+FILL:
+MOUSE:
+ORIGIN:
+RECTAN:
+LINE:
+TINT:
+TINTFN:
+MODEFN:
+WIDFN:
+WAIT:
+SYS:
+	XOR	A
+	CALL	EXTERR
+	DEFM	'Sorry'
+	DEFB	0
+;
+	END
diff --git a/Source/Apps/BBCBASIC/main.z80 b/Source/Apps/BBCBASIC/main.z80
new file mode 100644
index 00000000..5d947378
--- /dev/null
+++ b/Source/Apps/BBCBASIC/main.z80
@@ -0,0 +1,2237 @@
+	TITLE	BBC BASIC (C) R.T.RUSSELL 1981-2024
+	NAME	('MAIN')
+;
+;BBC BASIC INTERPRETER - Z80 VERSION
+;COMMANDS AND COMMON MODULE - "MAIN"
+;(C) COPYRIGHT R.T.RUSSELL 1981-2024
+;
+;THE NAME BBC BASIC IS USED WITH THE PERMISSION
+;OF THE BRITISH BROADCASTING CORPORATION AND IS
+;NOT TRANSFERRABLE TO A FORKED OR DERIVED WORK.
+;
+;VERSION 2.3, 07-05-1984
+;VERSION 3.0, 01-03-1987
+;VERSION 5.0, 27-05-2024
+;
+	EXTRN	XEQ
+	EXTRN	RUN0
+	EXTRN	CHAIN0
+	EXTRN	TERMQ
+	EXTRN	MUL16
+	EXTRN	X14OR5
+	EXTRN	SPACES
+	EXTRN	ESCAPE
+	EXTRN	CHECK
+	EXTRN	SEARCH
+;
+	EXTRN	OSWRCH
+	EXTRN	OSLINE
+	EXTRN	OSINIT
+	EXTRN	OSLOAD
+	EXTRN	OSSAVE
+	EXTRN	OSBGET
+	EXTRN	OSBPUT
+	EXTRN	OSSHUT
+	EXTRN	OSSTAT
+	EXTRN	PROMPT
+	EXTRN	LTRAP
+	EXTRN	OSCLI
+	EXTRN	RESET
+;
+	EXTRN	COMMA
+	EXTRN	BRAKET
+	EXTRN	ZERO
+	EXTRN	ITEMI
+	EXTRN	EXPRI
+	EXTRN	EXPRS
+	EXTRN	DECODE
+	EXTRN	LOADN
+	EXTRN	SFIX
+;
+	GLOBAL	NXT
+	GLOBAL	NLIST
+	GLOBAL	START
+	GLOBAL	OUTCHR
+	GLOBAL	OUT
+	GLOBAL	ERROR
+	GLOBAL	EXTERR
+	GLOBAL	REPORT
+	GLOBAL	CLOOP
+	GLOBAL	WARM
+	GLOBAL	CLEAR
+	GLOBAL	CRLF
+	GLOBAL	SAYLN
+	GLOBAL	LOAD0
+	GLOBAL	TELL
+	GLOBAL	FINDL
+	GLOBAL	GETTOP
+	GLOBAL	SETLIN
+	GLOBAL	GETVAR
+	GLOBAL	PUTVAR
+	GLOBAL	GETDEF
+	GLOBAL	LOCATE
+	GLOBAL	CREATE
+	GLOBAL	PBCDL
+	GLOBAL	LEXAN2
+	GLOBAL	RANGE
+	GLOBAL	VERMSG
+	GLOBAL	KEYWDS
+	GLOBAL	KEYWDL
+;
+	EXTRN	PAGE
+	EXTRN	ACCS
+	EXTRN	BUFFER
+	EXTRN	LOMEM
+	EXTRN	HIMEM
+	EXTRN	COUNT
+	EXTRN	WIDTH
+	EXTRN	FREE
+	EXTRN	STAVAR
+	EXTRN	DYNVAR
+	EXTRN	ERRTXT
+	EXTRN	ERR
+	EXTRN	ERL
+	EXTRN	CURLIN
+	EXTRN	ERRTRP
+	EXTRN	ONERSP
+	EXTRN	FNPTR
+	EXTRN	PROPTR
+	EXTRN	AUTONO
+	EXTRN	INCREM
+	EXTRN	LISTON
+	EXTRN	TRACEN
+;
+CR	EQU	0DH
+LF	EQU	0AH
+ESC	EQU	1BH
+;
+TERROR	EQU	85H
+TLINE	EQU	86H
+TELSE	EQU	8BH
+TTHEN	EQU	8CH
+TLINO	EQU	8DH
+TFN	EQU	0A4H
+TTO	EQU	0B8H
+TWHILE	EQU	0C7H
+TCASE	EQU	0C8H
+TWHEN	EQU	0C9H
+TOF	EQU	0CAH
+TENDCASE EQU	0CBH
+TOTHERWISE EQU	0CCH
+TENDIF	EQU	0CDH
+TENDWHILE EQU	0CEH
+TDATA	EQU	0DCH
+TDIM	EQU	0DEH
+TFOR	EQU	0E3H
+TGOSUB	EQU	0E4H
+TGOTO	EQU	0E5H
+TIF	EQU	0E7H
+TLOCAL	EQU	0EAH
+TNEXT	EQU	0EDH
+TON	EQU	0EEH
+TPROC	EQU	0F2H
+TREM	EQU	0F4H
+TREPEAT	EQU	0F5H
+TRESTORE EQU	0F7H
+TTRACE	EQU	0FCH
+TUNTIL	EQU	0FDH
+TEXIT	EQU	10H
+;
+TOKLO	EQU	8FH
+TOKHI	EQU	93H
+OFFSET	EQU	0CFH-TOKLO
+;
+START:	JP	COLD
+	JP	WARM
+	JP	ESCAPE
+	JP	EXTERR
+	JP	TELL
+	JP	TEXT
+	JP	ITEMI
+	JP	EXPRI
+	JP	EXPRS
+	JP	OSCLI
+	JP	OSBGET
+	JP	OSBPUT
+	JP	OSSTAT
+	JP	OSSHUT
+COLD:	LD	HL,STAVAR	;COLD START
+	LD	SP,HL
+	LD	(HL),10
+	INC	L
+	LD	(HL),9
+	INC	L
+	XOR	A
+PURGE:	LD	(HL),A		;CLEAR SCRATCHPAD
+	INC	L
+	JR	NZ,PURGE
+	LD	A,37H		;V3.0
+	LD	(LISTON),A
+	LD	HL,NOTICE
+	LD	(ERRTXT),HL
+	CALL	OSINIT
+	LD	(HIMEM),DE
+	LD	(PAGE),HL
+	CALL	NEWIT
+	JP	NZ,CHAIN0	;AUTO-RUN
+	CALL	TELL
+VERMSG:	DEFM	'BBC BASIC (Z80) Version 5beta2'
+	DEFB	CR
+	DEFB	LF
+NOTICE:	DEFM	'(C) Copyright R.T.Russell 2024'
+	DEFB	CR
+	DEFB	LF
+	DEFB	0
+WARM:	DEFB	0F6H
+CLOOP:	SCF
+	LD	SP,(HIMEM)
+	CALL	PROMPT		;PROMPT USER
+	LD	HL,LISTON
+	LD	A,(HL)
+	AND	0FH		;LISTO
+	OR	30H		;OPT 3
+	LD	(HL),A
+	SBC	HL,HL		;HL <- 0 (V3.0)
+	LD	(ERRTRP),HL
+	LD	(ONERSP),HL
+	LD	(CURLIN),HL	;For CMOS EDIT->LIST
+	LD	HL,(AUTONO)
+	PUSH	HL
+	LD	A,H
+	OR	L
+	JR	Z,NOAUTO
+	PUSH	HL
+	CALL	PBCD		;AUTO NUMBER
+	POP	HL
+	LD	BC,(INCREM)
+	LD	B,0
+	ADD	HL,BC
+	JP	C,TOOBIG
+	LD	(AUTONO),HL
+	LD	A,' '
+	CALL	OUTCHR
+NOAUTO:	LD	HL,ACCS
+	CALL	OSLINE		;GET CONSOLE INPUT
+	XOR	A
+	LD	(COUNT),A
+	LD	IY,ACCS
+	LD	HL,COMNDS
+	CALL	LEX0
+	POP	HL
+	JR	NZ,NOTCMD
+	ADD	A,A
+	LD	C,A
+	LD	B,0
+	LD	HL,CMDTAB
+	ADD	HL,BC
+	LD	A,(HL)		;TABLE ENTRY
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	INC	IY
+	CALL	NXT
+	JP	(HL)		;EXECUTE COMMAND
+;
+NOTCMD:	LD	A,H
+	OR	L
+	CALL	Z,LINNUM
+	CALL	NXT
+	LD	DE,BUFFER
+	LD	C,1		;LEFT MODE
+	PUSH	HL
+	CALL	LEXAN2		;LEXICAL ANALYSIS
+	POP	HL
+	LD	(DE),A		;TERMINATOR
+	XOR	A
+	LD	B,A
+	LD	C,E		;BC=LINE LENGTH
+	INC	DE
+	LD	(DE),A		;ZERO NEXT
+	LD	A,H
+	OR	L
+	LD	IY,BUFFER	;FOR XEQ
+	JP	Z,XEQ		;DIRECT MODE
+	PUSH	BC
+	CALL	FINDL
+	CALL	Z,DEL
+	POP	BC
+	LD	A,C
+	OR	A
+	JR	Z,CLOOP2	;DELETE LINE ONLY
+	ADD	A,4
+	LD	C,A		;LENGTH INCLUSIVE
+	PUSH	DE		;LINE NUMBER
+	PUSH	BC		;SAVE LINE LENGTH
+	EX	DE,HL
+	PUSH	BC
+	CALL	GETTOP
+	POP	BC
+	PUSH	HL
+	ADD	HL,BC
+	PUSH	HL
+	INC	H
+	XOR	A
+	SBC	HL,SP
+	POP	HL
+	JP	NC,ERROR	;"No room"
+	EX	(SP),HL
+	PUSH	HL
+	INC	HL
+	OR	A
+	SBC	HL,DE
+	LD	B,H		;BC=AMOUNT TO MOVE
+	LD	C,L
+	POP	HL
+	POP	DE
+	JR	Z,ATEND
+	LDDR			;MAKE SPACE
+ATEND:	POP	BC		;LINE LENGTH
+	POP	DE		;LINE NUMBER
+	INC	HL
+	LD	(HL),C		;STORE LENGTH
+	INC	HL
+	LD	(HL),E		;STORE LINE NUMBER
+	INC	HL
+	LD	(HL),D
+	INC	HL
+	LD	DE,BUFFER
+	EX	DE,HL
+	DEC	C
+	DEC	C
+	DEC	C
+	LDIR			;ADD LINE
+	CALL	CLEAN
+CLOOP2:	JP	CLOOP
+;
+;LIST OF TOKENS AND KEYWORDS.
+;IF A KEYWORD IS FOLLOWED BY NUL THEN IT WILL
+; ONLY MATCH WITH THE WORD FOLLOWED IMMEDIATELY
+; BY A DELIMITER.
+;
+KEYWDS:	DEFB	80H
+	DEFM	'AND'
+	DEFB	94H
+	DEFM	'ABS'
+	DEFB	95H
+	DEFM	'ACS'
+	DEFB	96H
+	DEFM	'ADVAL'
+	DEFB	97H
+	DEFM	'ASC'
+	DEFB	98H
+	DEFM	'ASN'
+	DEFB	99H
+	DEFM	'ATN'
+	DEFB	9AH
+	DEFM	'BGET '
+	DEFB	0D5H
+	DEFM	'BPUT '
+	DEFB	0FH
+	DEFM	'BY '		; v5
+	DEFB	0FBH
+	DEFM	'COLOUR'
+	DEFB	0FBH
+	DEFM	'COLOR'
+	DEFB	0D6H
+	DEFM	'CALL'
+	DEFB	0C8H
+	DEFM	'CASE'		; v5
+	DEFB	0D7H
+	DEFM	'CHAIN'
+	DEFB	0BDH
+	DEFM	'CHR$'
+	DEFB	01H
+	DEFM	'CIRCLE'	; v5
+	DEFB	0D8H
+	DEFM	'CLEAR '
+	DEFB	0D9H
+	DEFM	'CLOSE '
+	DEFB	0DAH
+	DEFM	'CLG '
+	DEFB	0DBH
+	DEFM	'CLS '
+	DEFB	9BH
+	DEFM	'COS'
+	DEFB	9CH
+	DEFM	'COUNT '
+	DEFB	0DCH
+	DEFM	'DATA'
+	DEFB	9DH
+	DEFM	'DEG'
+	DEFB	0DDH
+	DEFM	'DEF'
+	DEFB	81H
+	DEFM	'DIV'
+	DEFB	0DEH
+	DEFM	'DIM'
+	DEFB	0DFH
+	DEFM	'DRAW'
+	DEFB	02H
+	DEFM	'ELLIPSE'	; v5
+	DEFB	0CBH
+	DEFM	'ENDCASE '	; v5
+	DEFB	0CDH
+	DEFM	'ENDIF '	; v5
+	DEFB	0E1H
+	DEFM	'ENDPROC '
+	DEFB	0CEH
+	DEFM	'ENDWHILE '	; v5
+	DEFB	0E0H
+	DEFM	'END '
+	DEFB	0E2H
+	DEFM	'ENVELOPE'
+	DEFB	8BH
+	DEFM	'ELSE'
+	DEFB	0A0H
+	DEFM	'EVAL'
+	DEFB	9EH
+	DEFM	'ERL '
+	DEFB	85H
+	DEFM	'ERROR'
+	DEFB	0C5H
+	DEFM	'EOF '
+	DEFB	10H
+	DEFM	'EXIT '		; v5
+	DEFB	82H
+	DEFM	'EOR'
+	DEFB	9FH
+	DEFM	'ERR '
+	DEFB	0A1H
+	DEFM	'EXP'
+	DEFB	0A2H
+	DEFM	'EXT '
+	DEFB	0E3H
+	DEFM	'FOR'
+	DEFB	0A3H
+	DEFM	'FALSE '
+	DEFB	03H
+	DEFM	'FILL'		; v5
+	DEFB	0A4H
+	DEFM	'FN'
+	DEFB	0E5H
+	DEFM	'GOTO'
+	DEFB	0BEH
+	DEFM	'GET$'
+	DEFB	0A5H
+	DEFM	'GET'
+	DEFB	0E4H
+	DEFM	'GOSUB'
+	DEFB	0E6H
+	DEFM	'GCOL'
+	DEFB	93H
+	DEFM	'HIMEM '
+	DEFB	0E8H
+	DEFM	'INPUT'
+	DEFB	0E7H
+	DEFM	'IF'
+	DEFB	0BFH
+	DEFM	'INKEY$'
+	DEFB	0A6H
+	DEFM	'INKEY'
+	DEFB	0CH
+	DEFM	'INSTALL'	; v5
+	DEFB	0A8H
+	DEFM	'INT'
+	DEFB	0A7H
+	DEFM	'INSTR('
+	DEFB	86H
+	DEFM	'LINE'
+	DEFB	92H
+	DEFM	'LOMEM '
+	DEFB	0EAH
+	DEFM	'LOCAL'
+	DEFB	0C0H
+	DEFM	'LEFT$('
+	DEFB	0A9H
+	DEFM	'LEN'
+	DEFB	0E9H
+	DEFM	'LET'
+	DEFB	0ABH
+	DEFM	'LOG'
+	DEFB	0AAH
+	DEFM	'LN'
+	DEFB	0C1H
+	DEFM	'MID$('
+	DEFB	0EBH
+	DEFM	'MODE'
+	DEFB	83H
+	DEFM	'MOD'
+	DEFB	04H
+	DEFM	'MOUSE'		; v5
+	DEFB	0ECH
+	DEFM	'MOVE'
+	DEFB	0EDH
+	DEFM	'NEXT'
+	DEFB	0ACH
+	DEFM	'NOT'
+	DEFB	05H
+	DEFM	'ORIGIN'	; v5
+	DEFB	0CCH
+	DEFM	'OTHERWISE'	; v5
+	DEFB	0EEH
+	DEFM	'ON'
+	DEFB	87H
+	DEFM	'OFF '
+	DEFB	0CAH
+	DEFM	'OF '		; v5
+	DEFB	84H
+	DEFM	'OR'
+	DEFB	8EH
+	DEFM	'OPENIN'
+	DEFB	0AEH
+	DEFM	'OPENOUT'
+	DEFB	0ADH
+	DEFM	'OPENUP'
+	DEFB	0FFH
+	DEFM	'OSCLI'
+	DEFB	0F1H
+	DEFM	'PRINT'
+	DEFB	90H
+	DEFM	'PAGE '
+	DEFB	8FH
+	DEFM	'PTR '
+	DEFB	0AFH
+	DEFM	'PI '
+	DEFB	0F0H
+	DEFM	'PLOT'
+	DEFB	0B0H
+	DEFM	'POINT('
+	DEFB	0EH
+	DEFM	'PUT'		; Token changed
+	DEFB	0F2H
+	DEFM	'PROC'
+	DEFB	0B1H
+	DEFM	'POS '
+	DEFB	06H
+	DEFM	'QUIT '		; v5
+	DEFB	0F8H
+	DEFM	'RETURN '
+	DEFB	0F5H
+	DEFM	'REPEAT'
+	DEFB	0F6H
+	DEFM	'REPORT '
+	DEFB	0F3H
+	DEFM	'READ'
+	DEFB	0F4H
+	DEFM	'REM'
+	DEFB	0F9H
+	DEFM	'RUN '
+	DEFB	0B2H
+	DEFM	'RAD'
+	DEFB	0F7H
+	DEFM	'RESTORE'
+	DEFB	0C2H
+	DEFM	'RIGHT$('
+	DEFB	0B3H
+	DEFM	'RND '
+	DEFB	07H
+	DEFM	'RECTANGLE'	; v5
+	DEFB	88H
+	DEFM	'STEP'
+	DEFB	0B4H
+	DEFM	'SGN'
+	DEFB	0B5H
+	DEFM	'SIN'
+	DEFB	0B6H
+	DEFM	'SQR'
+	DEFB	89H
+	DEFM	'SPC'
+	DEFB	0C3H
+	DEFM	'STR$'
+	DEFB	0C4H
+	DEFM	'STRING$('
+	DEFB	0D4H
+	DEFM	'SOUND'
+	DEFB	0FAH
+	DEFM	'STOP '
+	DEFB	0C6H
+	DEFM	'SUM'		; v5
+	DEFB	08H
+	DEFM	'SWAP'		; v5
+	DEFB	09H
+	DEFM	'SYS'		; v5
+	DEFB	0B7H
+	DEFM	'TAN'
+	DEFB	8CH
+	DEFM	'THEN'
+	DEFB	0B8H
+	DEFM	'TO'
+	DEFB	8AH
+	DEFM	'TAB('
+	DEFB	0FCH
+	DEFM	'TRACE'
+	DEFB	91H
+	DEFM	'TIME '
+	DEFB	0AH
+	DEFM	'TINT'
+	DEFB	0B9H
+	DEFM	'TRUE '
+	DEFB	0FDH
+	DEFM	'UNTIL'
+	DEFB	0BAH
+	DEFM	'USR'
+	DEFB	0EFH
+	DEFM	'VDU'
+	DEFB	0BBH
+	DEFM	'VAL'
+	DEFB	0BCH
+	DEFM	'VPOS '
+	DEFB	0FEH
+	DEFM	'WIDTH'
+	DEFB	0BH
+	DEFM	'WAIT '		; v5
+	DEFB	0C9H
+	DEFM	'WHEN'		; v5
+	DEFB	0C7H
+	DEFM	'WHILE'		; v5
+;'LEFT' TOKENS:
+	DEFB	0CFH
+	DEFM	'PTR'
+	DEFB	0D1H
+	DEFM	'TIME'
+	DEFB	0D3H
+	DEFM	'HIMEM'
+	DEFB	0D2H
+	DEFM	'LOMEM'
+	DEFB	0D0H
+	DEFM	'PAGE'
+;
+	DEFB	11H
+	DEFM	'Missing '
+	DEFB	12H
+	DEFM	'No such '
+	DEFB	13H
+	DEFM	'Bad '
+	DEFB	14H
+	DEFM	' range'
+	DEFB	15H
+	DEFM	'variable'
+	DEFB	16H
+	DEFM	'Out of'
+	DEFB	17H
+	DEFM	'No '
+	DEFB	18H
+	DEFM	' space'
+	DEFB	19H
+	DEFM	'Not in a '
+	DEFB	1AH
+	DEFM	' loop'
+	DEFB	1BH
+	DEFM	' not '
+KEYWDL	EQU	$-KEYWDS
+	DEFW	-1
+;
+;LIST OF IMMEDIATE MODE COMMANDS:
+;
+COMNDS:	DEFB	80H
+	DEFM	'AUTO'
+	DEFB	81H
+	DEFM	'DELETE'
+	DEFB	82H
+	DEFM	'LIST'
+	DEFB	83H
+	DEFM	'LOAD'
+	DEFB	84H
+	DEFM	'NEW '
+	DEFB	85H
+	DEFM	'OLD '
+	DEFB	86H
+	DEFM	'RENUMBER'
+	DEFB	87H
+	DEFM	'SAVE'
+	DEFW	-1
+;
+;IMMEDIATE MODE COMMANDS:
+;
+CMDTAB:	DEFW	AUTO
+	DEFW	DELETE
+	DEFW	LIST
+	DEFW	LOAD
+	DEFW	NEW
+	DEFW	OLD
+	DEFW	RENUM
+	DEFW	SAVE
+;
+;ERROR MESSAGES:
+;
+ERRWDS:	DEFB	17H
+	DEFM	'room'
+	DEFB	0
+	DEFB	16H
+	DEFB	14H
+	DEFW	0
+	DEFM	'Multiple label'
+	DEFB	0
+	DEFM	'Mistake'
+	DEFB	0
+	DEFB	11H
+	DEFM	','
+	DEFB	0
+	DEFM	'Type mismatch'
+	DEFB	0
+	DEFB	19H
+	DEFB	TFN
+	DEFW	0
+	DEFB	11H
+	DEFM	'"'
+	DEFB	0
+	DEFB	13H
+	DEFB	TDIM
+	DEFB	0
+	DEFB	TDIM
+	DEFB	18H
+	DEFB	0
+	DEFB	19H
+	DEFB	TFN
+	DEFM	' or '
+	DEFB	TPROC
+	DEFB	0
+	DEFB	19H
+	DEFB	TPROC
+	DEFB	0
+	DEFB	13H
+	DEFM	'use of array'
+	DEFB	0
+	DEFB	13H
+	DEFM	'subscript'
+	DEFB	0
+	DEFM	'Syntax error'
+	DEFB	0
+	DEFM	'Escape'
+	DEFB	0
+	DEFM	'Division by zero'
+	DEFB	0
+	DEFM	'String too long'
+	DEFB	0
+	DEFM	'Number too big'
+	DEFB	0
+	DEFM	'-ve root'
+	DEFB	0
+	DEFM	'Log'
+	DEFB	14H
+	DEFB	0
+	DEFM	'Accuracy lost'
+	DEFB	0
+	DEFM	'Exponent'
+	DEFB	14H
+	DEFW	0
+	DEFB	12H
+	DEFB	15H
+	DEFB	0
+	DEFB	11H
+	DEFM	')'
+	DEFB	0
+	DEFB	13H
+	DEFM	'hex or binary'
+	DEFB	0
+	DEFB	12H
+	DEFB	TFN
+	DEFM	'/'
+	DEFB	TPROC
+	DEFB	0
+	DEFB	13H
+	DEFM	'call'
+	DEFB	0
+	DEFB	13H
+	DEFM	'arguments'
+	DEFB	0
+	DEFB	19H
+	DEFB	TFOR
+	DEFB	1AH
+	DEFB	0
+	DEFM	'Can''t match '
+	DEFB	TFOR
+	DEFB	0
+	DEFB	13H
+	DEFB	TFOR
+	DEFM	' '
+	DEFB	15H
+	DEFW	0
+	DEFB	11H
+	DEFB	TTO
+	DEFW	0
+	DEFB	17H
+	DEFB	TGOSUB
+	DEFB	0
+	DEFB	TON
+	DEFM	' syntax'
+	DEFB	0
+	DEFB	TON
+	DEFB	14H
+	DEFB	0
+	DEFB	12H
+	DEFM	'line'
+	DEFB	0
+	DEFB	16H
+	DEFM	' '
+	DEFB	TDATA
+	DEFB	0
+	DEFB	19H
+	DEFB	TREPEAT
+	DEFB	1AH
+	DEFB	0
+	DEFB	13H
+	DEFB	TEXIT
+	DEFB	0
+	DEFB	11H
+	DEFM	'#'
+	DEFB	0
+	DEFB	19H		;46 Not in a WHILE loop
+	DEFB	TWHILE
+	DEFB	1AH
+	DEFB	0
+	DEFB	11H		;47 Missing ENDCASE
+	DEFB	TENDCASE
+	DEFB	0
+	DEFB	TOF		;48 OF not last
+	DEFB	1BH
+	DEFM	'last'
+	DEFB	0
+	DEFB	11H		;49 Missing ENDIF
+	DEFB	TENDIF
+	DEFB	0
+	DEFW	0
+	DEFB	0
+	DEFB	TON		;53 ON ERROR not LOCAL
+	DEFM	' '
+	DEFB	TERROR
+	DEFB	1BH
+	DEFB	TLOCAL
+	DEFB	0
+	DEFB	TDATA		;54 DATA not LOCAL
+	DEFB	1BH
+	DEFB	TLOCAL
+	DEFB	0
+;
+;Indent tokens (first four needn't be at start of line):
+;
+TOKADD:	DEFB	TFOR
+	DEFB	TREPEAT
+	DEFB	TWHILE
+	DEFB	TCASE
+	DEFB	TELSE
+	DEFB	TWHEN
+	DEFB	TOTHERWISE
+LENADD	EQU	$-TOKADD
+;
+;Outdent tokens (first three needn't be at start of line):
+;
+TOKSUB:	DEFB	TNEXT
+	DEFB	TUNTIL
+	DEFB	TENDWHILE
+	DEFB	TENDCASE
+	DEFB	TENDIF
+	DEFB	TELSE
+	DEFB	TWHEN
+	DEFB	TOTHERWISE
+LENSUB	EQU	$-TOKSUB
+;
+;COMMANDS:
+;
+;DELETE line,line
+;
+DELETE:	CALL	DLPAIR
+DELET1:	LD	A,(HL)
+	OR	A
+	JP	Z,WARM
+	INC	HL
+	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)
+	DEC	HL
+	DEC	HL
+	EX	DE,HL
+	SCF
+	SBC	HL,BC
+	EX	DE,HL
+	JR	NC,WARMNC
+	PUSH	BC
+	CALL	DEL
+	POP	BC
+	JR	DELET1
+;
+;LISTO expr
+;
+LISTO:	INC	IY		;SKIP "O"
+	CALL	EXPRI
+	EXX
+	LD	A,L
+	LD	(LISTON),A
+CLOOP1:	JP	CLOOP
+;
+;LIST
+;LIST line
+;LIST line,line [IF string]
+;LIST ,line
+;LIST line,
+;
+LIST:	CP	'O'
+	JR	Z,LISTO
+	LD	C,1
+	LD	DE,BUFFER
+	CALL	LEXAN2
+	LD	(DE),A
+	LD	IY,BUFFER
+	CALL	DLPAIR
+	CALL	NXT
+	CP	TIF		;IF CLAUSE ?
+	LD	A,0		;INIT IF-CLAUSE LENGTH
+	JR	NZ,LISTB
+	INC	IY		;SKIP IF
+	CALL	NXT		;SKIP SPACES (IF ANY)
+	EX	DE,HL
+	PUSH	IY
+	POP	HL		;HL ADDRESSES IF CLAUSE
+	LD	A,CR
+	PUSH	BC
+	LD	BC,256
+	CPIR			;LOCATE CR
+	LD	A,C
+	CPL			;A = SUBSTRING LENGTH
+	POP	BC
+	EX	DE,HL
+LISTB:	LD	E,A		;IF-CLAUSE LENGTH
+	LD	A,B
+	OR	C
+	JR	NZ,LISTA
+	DEC	BC
+LISTA:	EXX
+	LD	IX,LISTON
+	LD	E,0		;INDENTATION COUNT
+	EXX
+	LD	A,20
+;
+LISTC:	PUSH	BC		;SAVE HIGH LINE NUMBER
+	PUSH	DE		;SAVE IF-CLAUSE LENGTH
+	PUSH	HL		;SAVE PROGRAM POINTER
+	EX	AF,AF'
+	LD	A,(HL)
+	OR	A
+	JR	Z,WARMNC
+;
+;CHECK IF PAST TERMINATING LINE NUMBER:
+;
+	LD	A,E		;A = IF-CLAUSE LENGTH
+	INC	HL
+	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)		;DE = LINE NUMBER
+	DEC	HL
+	DEC	HL
+	PUSH	DE		;SAVE LINE NUMBER
+	EX	DE,HL
+	SCF
+	SBC	HL,BC
+	EX	DE,HL
+	POP	DE		;RESTORE LINE NUMBER
+WARMNC:	JP	NC,WARM
+	LD	C,(HL)		;C = LINE LENGTH + 4
+	LD	B,A		;B = IF-CLAUSE LENGTH
+;
+;CHECK FOR IF CLAUSE:
+;
+	INC	HL
+	INC	HL
+	INC	HL		;HL ADDRESSES LINE TEXT
+	DEC	C
+	DEC	C
+	DEC	C
+	DEC	C		;C = LINE LENGTH
+	PUSH	DE		;SAVE LINE NUMBER
+	PUSH	HL		;SAVE LINE ADDRESS
+	XOR	A		;A <- 0
+	CP	B		;WAS THERE AN IF-CLAUSE
+	PUSH	IY
+	POP	DE		;DE ADDRESSES IF-CLAUSE
+	CALL	NZ,SEARCH	;SEARCH FOR IF CLAUSE
+	POP	HL		;RESTORE LINE ADDRESS
+	POP	DE		;RESTORE LINE NUMBER
+	PUSH	IY
+	CALL	Z,LISTIT	;LIST IF MATCH
+	POP	IY
+;
+	EX	AF,AF'
+	DEC	A
+	CALL	LTRAP
+	POP	HL		;RESTORE POINTER
+	LD	E,(HL)
+	LD	D,0
+	ADD	HL,DE		;ADDRESS NEXT LINE
+	POP	DE		;RESTORE IF-CLAUSE LEN
+	POP	BC		;RESTORE HI LINE NUMBER
+	JR	LISTC
+;
+;RENUMBER
+;RENUMBER start
+;RENUMBER start,increment
+;RENUMBER ,increment
+;
+RENUM:	CALL	CLEAR		;USES DYNAMIC AREA
+	CALL	PAIR		;LOAD HL,BC
+	EXX
+	LD	HL,(PAGE)
+	LD	DE,(LOMEM)
+RENUM1:	LD	A,(HL)		;BUILD TABLE
+	OR	A
+	JR	Z,RENUM2
+	INC	HL
+	LD	C,(HL)		;OLD LINE NUMBER
+	INC	HL
+	LD	B,(HL)
+	EX	DE,HL
+	LD	(HL),C
+	INC	HL
+	LD	(HL),B
+	INC	HL
+	EXX
+	PUSH	HL
+	ADD	HL,BC		;ADD INCREMENT
+	JP	C,TOOBIG	;"Too big"
+	EXX
+	POP	BC
+	LD	(HL),C
+	INC	HL
+	LD	(HL),B
+	INC	HL
+	EX	DE,HL
+	DEC	HL
+	DEC	HL
+	XOR	A
+	LD	B,A
+	LD	C,(HL)
+	ADD	HL,BC		;NEXT LINE
+	EX	DE,HL
+	PUSH	HL
+	INC	H
+	SBC	HL,SP
+	POP	HL
+	EX	DE,HL
+	JR	C,RENUM1	;CONTINUE
+	CALL	EXTERR		;"Out of space"
+	DEFB	16H
+	DEFB	18H
+	DEFB	0
+;
+RENUM2:	EX	DE,HL
+	LD	(HL),-1
+	INC	HL
+	LD	(HL),-1
+	LD	DE,(LOMEM)
+	EXX
+	LD	HL,(PAGE)
+RENUM3:	LD	C,(HL)
+	LD	A,C
+	OR	A
+	JP	Z,WARM
+	EXX
+	EX	DE,HL
+	INC	HL
+	INC	HL
+	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)
+	INC	HL
+	PUSH	DE
+	EX	DE,HL
+	EXX
+	POP	DE
+	INC	HL
+	LD	(HL),E		;NEW LINE NUMBER
+	INC	HL
+	LD	(HL),D
+	INC	HL
+	DEC	C
+	DEC	C
+	DEC	C
+	LD	B,0
+RENUM7:	LD	A,TLINO
+	CPIR			;SEARCH FOR LINE NUMBER
+	JR	NZ,RENUM3
+	PUSH	BC
+	PUSH	HL
+	PUSH	HL
+	POP	IY
+	EXX
+	PUSH	HL
+	CALL	DECODE		;DECODE LINE NUMBER
+	POP	HL
+	EXX
+	LD	B,H
+	LD	C,L
+	LD	HL,(LOMEM)
+RENUM4:	LD	E,(HL)		;CROSS-REFERENCE TABLE
+	INC	HL
+	LD	D,(HL)
+	INC	HL
+	EX	DE,HL
+	OR	A		;CLEAR CARRY
+	SBC	HL,BC
+	EX	DE,HL
+	LD	E,(HL)		;NEW NUMBER
+	INC	HL
+	LD	D,(HL)
+	INC	HL
+	JR	C,RENUM4
+	EX	DE,HL
+	JR	Z,RENUM5	;FOUND
+	CALL	TELL
+	DEFM	'Failed at '
+	DEFB	0
+	EXX
+	PUSH	HL
+	EXX
+	POP	HL
+	CALL	PBCDL
+	CALL	CRLF
+	JR	RENUM6
+RENUM5:	POP	DE
+	PUSH	DE
+	DEC	DE
+	CALL	ENCODE		;RE-WRITE NUMBER
+RENUM6:	POP	HL
+	POP	BC
+	JR	RENUM7
+;
+;AUTO
+;AUTO start,increment
+;AUTO start
+;AUTO ,increment
+;
+AUTO:	CALL	PAIR
+	LD	(AUTONO),HL
+	LD	A,C
+	LD	(INCREM),A
+	JR	CLOOP0
+;
+;BAD
+;NEW
+;
+BAD:	CALL	TELL		;"Bad program'
+	DEFB	13H
+	DEFM	'program'
+	DEFB	CR
+	DEFB	LF
+	DEFB	0
+NEW:	CALL	NEWIT
+	JR	CLOOP0
+;
+;OLD
+;
+OLD:	LD	HL,(PAGE)
+	PUSH	HL
+	INC	HL
+	INC	HL
+	INC	HL
+	LD	BC,252
+	LD	A,CR
+	CPIR
+	JR	NZ,BAD
+	LD	A,L
+	POP	HL
+	LD	(HL),A
+	CALL	CLEAN
+CLOOP0:	JP	CLOOP
+;
+;LOAD filename
+;
+LOAD:	CALL	EXPRS		;GET FILENAME
+	LD	A,CR
+	LD	(DE),A
+	CALL	LOAD0
+	CALL	CLEAR
+	JR	WARM0
+;
+;SAVE filename
+;
+SAVE:	CALL	EXPRS		;FILENAME
+	LD	A,CR
+	LD	(DE),A
+	LD	DE,(PAGE)
+	CALL	GETTOP
+	OR	A
+	SBC	HL,DE
+	LD	B,H		;LENGTH OF PROGRAM
+	LD	C,L
+	LD	HL,ACCS
+	CALL	OSSAVE
+WARM0:	JP	WARM
+;
+;ERROR
+;N.B. CARE NEEDED BECAUSE SP MAY NOT BE VALID (E.G. ABOVE HIMEM) 
+;
+ERROR:	LD	HL,ERRWDS
+	LD	C,A
+	OR	A
+	JR	Z,ERROR1
+	LD	B,A		;ERROR NUMBER
+	XOR	A
+ERROR0:	CP	(HL)
+	INC	HL
+	JR	NZ,ERROR0
+	DJNZ	ERROR0
+	JR	ERROR1		;MUST NOT PUSH HL HERE
+;
+EXTERR:	POP	HL
+	LD	C,A
+ERROR1:	LD	(ERRTXT),HL
+	LD	HL,(ONERSP)
+	LD	A,H
+	OR	L
+	LD	SP,(HIMEM)	;MUST SET SP BEFORE 'CALL'
+	JR	Z,ERROR4
+	LD	SP,HL
+ERROR4:	LD	A,C		;ERROR NUMBER
+	CALL	SETLIN		;SP IS SET NOW
+	LD	(ERR),A
+	LD	(ERL),HL
+	OR	A
+	JR	Z,ERROR2	;'FATAL' ERROR
+	LD	HL,(ERRTRP)
+	LD	A,H
+	OR	L
+	PUSH	HL
+	POP	IY
+	JP	NZ,XEQ		;ERROR TRAPPED
+ERROR2:	LD	SP,(HIMEM)
+	SBC	HL,HL
+	LD	(AUTONO),HL
+	LD	(TRACEN),HL	;CANCEL TRACE
+	CALL	RESET		;RESET OPSYS
+	CALL	CRLF
+	CALL	REPORT		;MESSAGE
+	LD	HL,(ERL)
+	CALL	SAYLN
+	LD	E,0
+	CALL	C,OSSHUT	;CLOSE ALL FILES
+	CALL	CRLF
+	JP	CLOOP
+;
+;SUBROUTINES:
+;
+;
+;LEX - SEARCH FOR KEYWORDS
+;   Inputs: HL = start of keyword table
+;           IY = start of match text
+;  Outputs: If found, Z-flag set, A=token.
+;           If not found, Z-flag reset, A=(IY).
+;           IY updated (if NZ, IY unchanged).
+; Destroys: A,B,H,L,IY,F
+;
+LEX:	LD	HL,KEYWDS
+LEX0:	LD	A,(IY)
+	LD	B,(HL)
+	INC	HL
+	CP	(HL)
+	JR	Z,LEX2
+	RET	C		;FAIL EXIT
+LEX1:	INC	HL
+	LD	A,(HL)
+	CP	160
+	JP	PE,LEX1
+	JR	LEX0
+;
+LEX2:	PUSH	IY		;SAVE POINTER
+LEX3:	INC	HL
+	LD	A,(HL)
+	CP	160
+	JP	PO,LEX6		;FOUND
+	INC	IY
+	LD	A,(IY)
+	CP	(HL)
+	JR	NZ,LEX7
+	CP	161
+	JP	PE,LEX3
+LEX7:	LD	A,(IY)
+	CP	'.'
+	JR	Z,LEX6		;FOUND (ABBREV.)
+	CALL	RANGE1
+	JR	C,LEX5
+LEX4:	POP	IY		;RESTORE POINTER
+	JR	LEX1
+;
+LEX5:	LD	A,(HL)
+	CP	' '
+	JR	NZ,LEX4
+	DEC	IY
+LEX6:	POP	AF
+	XOR	A
+	LD	A,B
+	RET
+;
+;DEL - DELETE A PROGRAM LINE.
+;   Inputs: HL addresses program line.
+; Destroys: B,C,F
+;
+DEL:	PUSH	DE
+	PUSH	HL
+	PUSH	HL
+	LD	B,0
+	LD	C,(HL)
+	ADD	HL,BC
+	PUSH	HL
+	EX	DE,HL
+	CALL	GETTOP
+	SBC	HL,DE
+	LD	B,H
+	LD	C,L
+	POP	HL
+	POP	DE
+	LDIR			;DELETE LINE
+	POP	HL
+	POP	DE
+	RET
+;
+;LOAD0 - LOAD A DISK FILE THEN CLEAN.
+;   Inputs: Filename in ACCS (term CR)
+; Destroys: A,B,C,D,E,H,L,F
+;
+;CLEAN - CHECK FOR BAD PROGRAM, FIND END OF TEXT
+; AND WRITE FF FF.
+; Destroys: A,B,C,H,L,F
+;
+LOAD0:	LD	DE,(PAGE)
+	LD	HL,-256
+	ADD	HL,SP
+	SBC	HL,DE		;FIND AVAILABLE SPACE
+	LD	B,H
+	LD	C,L
+	LD	HL,ACCS
+	CALL	OSLOAD		;LOAD
+	CALL	NC,NEWIT
+	LD	A,0
+	JP	NC,ERROR	;"No room"
+CLEAN:	CALL	GETTOP
+	DEC	HL
+	LD	(HL),-1		;WRITE &FFFF
+	DEC	HL
+	LD	(HL),-1
+	JR	CLEAR
+;
+GETTOP:	LD	HL,(PAGE)
+	LD	B,0
+	LD	A,CR
+GETOP1:	LD	C,(HL)
+	INC	C
+	DEC	C
+	JR	Z,GETOP2
+	ADD	HL,BC
+	DEC	HL
+	CP	(HL)
+	INC	HL
+	JR	Z,GETOP1
+	JP	BAD
+GETOP2:	INC	HL		;N.B. CALLED FROM NEWIT
+	INC	HL
+	INC	HL
+	RET
+;
+;NEWIT - NEW PROGRAM THEN CLEAR
+;   Destroys: H,L
+;
+;CLEAR - CLEAR ALL DYNAMIC VARIABLES INCLUDING
+; FUNCTION AND PROCEDURE POINTERS.
+;   Destroys: Nothing
+;
+NEWIT:	LD	HL,(PAGE)
+	LD	(HL),0
+CLEAR:	PUSH	HL
+	PUSH	BC
+	PUSH	AF
+	CALL	GETTOP
+	LD	(LOMEM),HL
+	LD	(FREE),HL
+	LD	HL,DYNVAR
+	LD	B,2*(54+2)
+CLEAR1:	LD	(HL),0
+	INC	HL
+	DJNZ	CLEAR1
+	POP	AF
+	POP	BC
+	POP	HL
+	RET
+;
+;LISTIT - LIST A PROGRAM LINE.
+;    Inputs: HL addresses line
+;            DE = line number (binary)
+;	     E' = indentation count
+;            IX addresses LISTON
+;  Destroys: A,D,E,B',C',D',E',H',L',IY,F
+;
+LISTIT:	PUSH	HL
+	EX	DE,HL
+	PUSH	BC
+	CALL	PBCD
+	POP	BC
+	POP	HL
+	LD	A,(HL)
+	EXX
+	LD	HL,TOKSUB
+	LD	BC,LENSUB
+	CPIR
+	CALL	Z,INDSUB
+	CP	TENDCASE
+	CALL	Z,INDSUB
+	LD	A,' '
+	BIT	0,(IX)
+	CALL	NZ,OUTCHR
+	LD	A,E
+	ADD	A,A
+	BIT	1,(IX)
+	CALL	NZ,SPACES
+	EXX
+	LD	A,(HL)
+	LD	E,0
+	EXX
+	LD	BC,LENADD
+LIST5:	LD	HL,TOKADD
+	CPIR
+	CALL	Z,INDADD
+	CP	TCASE
+	CALL	Z,INDADD
+	EXX
+LIST8:	LD	A,(HL)
+	INC	HL
+	CP	CR
+	JR	Z,LIST9
+	LD	D,A
+	CP	TEXIT
+	JR	NZ,LIST6
+	SET	7,E
+LIST6:	CP	'"'
+	JR	NZ,LIST7
+	INC	E
+LIST7:	CALL	LOUT
+	LD	A,E
+	AND	81H
+	JR	NZ,LIST8
+	LD	A,(HL)
+	EXX
+	LD	HL,TOKSUB
+	LD	BC,3
+	CPIR
+	CALL	Z,INDSUB
+	LD	C,4
+	JR	LIST5
+;
+LIST9:	LD	A,D
+	CP	TTHEN
+	EXX
+	CALL	Z,INDADD
+	EXX
+	JR	CRLF
+;
+PRLINO:	PUSH	HL
+	POP	IY
+	PUSH	BC
+	CALL	DECODE
+	POP	BC
+	EXX
+	PUSH	BC
+	PUSH	DE
+	CALL	PBCDL
+	POP	DE
+	POP	BC
+	EXX
+	PUSH	IY
+	POP	HL
+	RET
+;
+LOUT:	BIT	0,E
+	JR	NZ,OUTCHR
+	CP	TLINO
+	JR	Z,PRLINO
+	CALL	OUT
+	RET
+;
+INDADD:	INC	E
+	RET
+;
+INDSUB:	DEC	E
+	JP	P,INDRET
+	INC	E
+INDRET:	RET
+;
+;CRLF - SEND CARRIAGE RETURN, LINE FEED.
+;  Destroys: A,F
+;OUTCHR - OUTPUT A CHARACTER TO CONSOLE.
+;    Inputs: A = character
+;  Destroys: A,F
+;
+CRLF:	LD	A,CR
+	CALL	OUTCHR
+	LD	A,LF
+OUTCHR:	CALL	OSWRCH
+	SUB	CR
+	JR	Z,CARRET
+	RET	C		;NON-PRINTING
+	LD	A,(COUNT)
+	INC	A
+CARRET:	LD	(COUNT),A
+	RET	Z
+	PUSH	HL
+	LD	HL,(WIDTH)
+	CP	L
+	POP	HL
+	RET	NZ
+	JR	CRLF
+;
+;OUT - SEND CHARACTER OR KEYWORD
+;   Inputs: A = character (>=10, <128)
+;           A = Token (<10, >=128)
+;  Destroys: A,F
+;
+OUT:	CP	160
+	JP	PE,OUTCHR
+	PUSH	BC
+	PUSH	HL
+	LD	HL,KEYWDS
+	LD	BC,KEYWDL
+	CPIR
+	CALL	NZ,OUTCHR
+	LD	B,160
+	CP	145
+	JP	PE,TOKEN1
+	INC	B
+TOKEN1:	LD	A,(HL)
+	INC	HL
+	CP	B
+	PUSH	AF
+	CALL	PE,OUTCHR
+	POP	AF
+	JP	PE,TOKEN1
+	POP	HL
+	POP	BC
+	RET
+;
+;FINDL - FIND PROGRAM LINE.
+;   Inputs: HL = line number (binary)
+;  Outputs: HL addresses line (if found)
+;           DE = line number
+;           Z-flag set if found.
+; Destroys: A,B,C,D,E,H,L,F
+;
+FINDL:	EX	DE,HL
+	LD	HL,(PAGE)
+	XOR	A		;A=0
+	CP	(HL)
+	INC	A
+	RET	NC
+	XOR	A		;CLEAR CARRY
+	LD	B,A
+FINDL1:	LD	C,(HL)
+	PUSH	HL
+	INC	HL
+	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A
+	SBC	HL,DE
+	POP	HL
+	RET	NC		;FOUND OR PAST
+	ADD	HL,BC
+	JR	FINDL1
+;
+;SETLIN - Search program for line containing address.
+;   Inputs: Address in (CURLIN)
+;  Outputs: Line number in HL
+; Destroys: B,C,D,E,H,L,F
+;
+SETLIN:	LD	B,0
+	LD	DE,(CURLIN)
+	LD	HL,(PAGE)
+	OR	A
+	SBC	HL,DE
+	ADD	HL,DE
+	JR	NC,SET3
+SET1:	LD	C,(HL)
+	INC	C
+	DEC	C
+	JR	Z,SET3
+	ADD	HL,BC
+	SBC	HL,DE
+	ADD	HL,DE
+	JR	C,SET1
+	SBC	HL,BC
+	INC	HL
+	LD	E,(HL)		;LINE NUMBER
+	INC	HL
+	LD	D,(HL)
+	EX	DE,HL
+SET2:	RET
+;
+SET3:	LD	HL,0
+	JR	SET2
+;
+;SAYLN - PRINT " at line nnnn" MESSAGE.
+;   Inputs: HL = line number
+;  Outputs: Carry=0 if line number is zero.
+;           Carry=1 if line number is non-zero.
+; Destroys: A,B,C,D,E,H,L,F
+;
+SAYLN:	LD	A,H
+	OR	L
+	RET	Z
+	CALL	TELL
+	DEFM	' at line '
+	DEFB	0
+PBCDL:	LD	C,0
+	JR	PBCD0
+;
+;PBCD - PRINT NUMBER AS DECIMAL INTEGER.
+;   Inputs: HL = number (binary).
+;  Outputs: Carry = 1
+; Destroys: A,B,C,D,E,H,L,F
+;
+PBCD:	LD	C,' '
+PBCD0:	LD	B,5
+	LD	DE,10000
+PBCD1:	XOR	A
+PBCD2:	SBC	HL,DE
+	INC	A
+	JR	NC,PBCD2
+	ADD	HL,DE
+	DEC	A
+	JR	Z,PBCD3
+	SET	4,C
+	SET	5,C
+PBCD3:	OR	C
+	CALL	NZ,OUTCHR
+	LD	A,B
+	CP	5
+	JR	Z,PBCD4
+	ADD	HL,HL
+	LD	D,H
+	LD	E,L
+	ADD	HL,HL
+	ADD	HL,HL
+	ADD	HL,DE
+PBCD4:	LD	DE,1000
+	DJNZ	PBCD1
+	SCF
+	RET
+;
+;HANDLE WHOLE ARRAY:
+;
+GETV1:	INC	IY
+	INC	IY		;SKIP ()
+	PUSH	HL		;SET EXIT CONDITIONS
+	POP	IX
+	LD	A,D
+	OR	64		;FLAG ARRAY
+	CP	A
+	RET
+;
+;PUTVAR - CREATE VARIABLE AND INITIALISE TO ZERO.
+;   Inputs: HL, IY as returned from GETVAR (NZ).
+;  Outputs: As GETVAR.
+; Destroys: everything
+;
+PUTVAR:	CALL	CREATE
+	LD	A,(IY)
+	CP	'('
+	JR	NZ,GETVZ	;SET EXIT CONDITIONS
+	LD	A,(IY+1)
+	CP	')'		;WHOLE ARRAY?
+	JR	Z,GETV1
+ARRAY:	LD	A,14		;'Bad use of array'
+ERROR3:	JP	ERROR
+;
+;GETVAR - GET LOCATION OF VARIABLE, RETURN IN HL & IX
+;   Inputs: IY addresses first character.
+;  Outputs: Carry set and NZ if illegal character.
+;           Z-flag set if variable found, then:
+;            A = variable type (0,4,5,128 or 129)
+;                (68,69 or 193 for whole array)
+;            HL = IX = variable pointer.
+;            IY updated
+;           If Z-flag & carry reset, then:
+;            HL, IY set for subsequent PUTVAR call.
+; Destroys: everything
+;
+GETVAR:	LD	A,(IY)
+	CP	'!'
+	JR	Z,GETV5
+	CP	'?'
+	JR	Z,GETV6
+	CP	'|'
+	JR	Z,GETVF
+	CP	'$'
+	JR	Z,GETV4
+	CALL	LOCATE
+	RET	NZ
+	LD	A,(IY)
+	CP	'('		;ARRAY?
+	JR	NZ,GETVX	;EXIT
+	LD	A,(IY+1)
+	CP	')'		;WHOLE ARRAY?
+	JR	Z,GETV1
+	PUSH	DE		;SAVE TYPE
+	LD	A,(HL)
+	INC	HL
+	LD	H,(HL)
+	LD	L,A		;INDIRECT LINK
+	AND	0FEH
+	OR	H
+	JR	Z,ARRAY
+	LD	A,(HL)		;NO. OF DIMENSIONS
+	OR	A
+	JR	Z,ARRAY
+	INC	HL
+	LD	DE,0		;ACCUMULATOR
+	PUSH	AF
+	INC	IY		;SKIP (
+GETV3:	PUSH	HL
+	PUSH	DE
+	CALL	EXPRI		;SUBSCRIPT
+	EXX
+	POP	DE
+	EX	(SP),HL
+	LD	C,(HL)
+	INC	HL
+	LD	B,(HL)
+	INC	HL
+	EX	(SP),HL
+	EX	DE,HL
+	PUSH	DE
+	CALL	MUL16		;HL=HL*BC
+	POP	DE
+	ADD	HL,DE
+	EX	DE,HL
+	OR	A
+	SBC	HL,BC
+	LD	A,15
+	JR	NC,ERROR3	;"Subscript"
+	POP	HL
+	POP	AF
+	DEC	A		;DIMENSION COUNTER
+	JR	NZ,GETV2
+	CALL	BRAKET		;CLOSING BRACKET
+	POP	AF		;RESTORE TYPE
+	PUSH	HL
+	CALL	X14OR5		;DE=DE*n
+	POP	HL
+	ADD	HL,DE
+	LD	D,A		;TYPE
+	LD	A,(IY)
+GETVX:	CP	'?'
+	JR	Z,GETV9
+	CP	'!'
+	JR	Z,GETV8
+GETVZ:	PUSH	HL		;SET EXIT CONDITIONS
+	POP	IX
+	LD	A,D
+	CP	A
+	RET
+;
+GETV2:	PUSH	AF
+	CALL	COMMA
+	JR	GETV3
+;
+;PROCESS UNARY & BINARY INDIRECTION:
+;
+GETV5:	LD	A,4		;UNARY 32-BIT INDIRN.
+	JR	GETV7
+GETV6:	XOR	A		;UNARY 8-BIT INDIRECTION
+	JR	GETV7
+GETVF:	LD	A,5		;VARIANT INDIRECTION
+	JR	GETV7
+GETV4:	LD	A,128		;STATIC STRING
+GETV7:	SBC	HL,HL
+	PUSH	AF
+	JR	GETV0
+;
+GETV8:	LD	B,4		;32-BIT BINARY INDIRN.
+	JR	GETVA
+GETV9:	LD	B,0		;8-BIT BINARY INDIRN.
+GETVA:	PUSH	HL
+	POP	IX
+	LD	A,D		;TYPE
+	CP	129
+	RET	Z		;STRING!
+	PUSH	BC
+	CALL	LOADN		;LEFT OPERAND
+	CALL	SFIX
+	EXX
+GETV0:	PUSH	HL
+	INC	IY
+	CALL	ITEMI
+	EXX
+	POP	DE
+	POP	AF
+	ADD	HL,DE
+	PUSH	HL
+	POP	IX
+	CP	A
+	RET
+;
+;GETDEF - Find entry for FN or PROC in dynamic area.
+;   Inputs: IY addresses byte following "DEF" token.
+;  Outputs: Z flag set if found
+;           Carry set if neither FN or PROC first.
+;           If Z: HL points to entry
+;                 IY addresses delimiter
+; Destroys: A,D,E,H,L,IY,F
+;
+GETDEF:	LD	A,(IY+1)
+	CALL	RANGE1
+	RET	C
+	LD	A,(IY)
+	LD	HL,FNPTR
+	CP	TFN
+	JR	Z,LOC2
+	LD	HL,PROPTR
+	CP	TPROC
+	JR	Z,LOC2
+	SCF
+	RET
+;
+;LOCATE - Try to locate variable name in static or
+;dynamic variables.  If illegal first character return
+;carry, non-zero.  If found, return no-carry, zero.
+;If not found, return no-carry, non-zero.
+;   Inputs: IY addresses first character of name.
+;           A=(IY)
+;  Outputs: Z-flag set if found, then:
+;            IY addresses terminator
+;            HL addresses location of variable
+;            D=type of variable:  4 = integer
+;                                 5 = floating point
+;                               129 = string
+; Destroys: A,D,E,H,L,IY,F
+;
+LOCATE:	SUB	'@'
+	RET	C
+	LD	H,0
+	CP	'Z'-'@'+1
+	JR	NC,LOC0		;NOT STATIC
+	ADD	A,A
+	LD	L,A
+	LD	A,(IY+1)	;2nd CHARACTER
+	CP	'%'
+	JR	NZ,LOC1		;NOT STATIC
+	LD	A,(IY+2)
+	CP	'('
+	JR	Z,LOC1		;NOT STATIC
+	ADD	HL,HL
+	LD	DE,STAVAR	;STATIC VARIABLES
+	ADD	HL,DE
+	INC	IY
+	INC	IY
+	LD	D,4		;INTEGER TYPE
+	XOR	A
+	RET
+;
+LOC0:	CP	'_'-'@'
+	RET	C
+	CP	'z'-'@'+1
+	CCF
+	DEC	A		;SET NZ
+	RET	C
+	SUB	3
+	ADD	A,A
+	LD	L,A
+LOC1:	LD	DE,DYNVAR	;DYNAMIC VARIABLES
+	DEC	L
+	DEC	L
+	SCF
+	RET	M
+	ADD	HL,DE
+LOC2:	LD	E,(HL)
+	INC	HL
+	LD	D,(HL)
+	LD	A,D
+	OR	E
+	JR	Z,LOC6		;UNDEFINED VARIABLE
+	LD	H,D
+	LD	L,E
+	INC	HL		;SKIP LINK
+	INC	HL
+	PUSH	IY
+LOC3:	LD	A,(HL)		;COMPARE
+	INC	HL
+	INC	IY
+	CP	(IY)
+	JR	Z,LOC3
+	OR	A		;0=TERMINATOR
+	JR	Z,LOC5		;FOUND (MAYBE)
+LOC4:	POP	IY
+	EX	DE,HL
+	JR	LOC2		;TRY NEXT ENTRY
+;
+LOC5:	DEC	IY
+	LD	A,(IY)
+	CP	'('
+	JR	Z,LOCX		;FOUND
+	INC	IY
+	CALL	RANGE
+	JR	C,LOCX		;FOUND
+	CP	'('
+	JR	Z,LOC4		;KEEP LOOKING
+	LD	A,(IY-1)
+	CALL	RANGE1
+	JR	NC,LOC4		;KEEP LOOKING
+LOCX:	POP	DE
+TYPE:	LD	A,(IY-1)
+	CP	'$'
+	LD	D,129
+	RET	Z		;STRING
+	CP	'&'
+	LD	D,1
+	RET	Z		;BYTE
+	CP	'%'
+	LD	D,4
+	RET	Z		;INTEGER
+	INC	D
+	CP	A
+	RET
+;
+LOC6:	INC	A		;SET NZ
+	RET
+;
+;CREATE - CREATE NEW ENTRY, INITIALISE TO ZERO.
+;   Inputs: HL, IY as returned from LOCATE (NZ).
+;  Outputs: As LOCATE, GETDEF.
+; Destroys: As LOCATE, GETDEF.
+;
+CREATE:	XOR	A
+	LD	DE,(FREE)
+	LD	(HL),D
+	DEC	HL
+	LD	(HL),E
+	EX	DE,HL
+	LD	(HL),A
+	INC	HL
+	LD	(HL),A
+	INC	HL
+LOC7:	INC	IY
+	CALL	RANGE		;END OF VARIABLE?
+	JR	C,LOC8
+	LD	(HL),A
+	INC	HL
+	CALL	RANGE1
+	JR	NC,LOC7
+	CP	'('
+	JR	Z,LOC8
+	LD	A,(IY+1)
+	CP	'('
+	JR	Z,LOC7
+	INC	IY
+LOC8:	LD	(HL),0		;TERMINATOR
+	INC	HL
+	PUSH	HL
+	CALL	TYPE
+	LD	A,(IY)
+	CP	'('
+	LD	A,2		;SIZE OF INDIRECT LINK
+	JR	Z,LOC9
+	LD	A,D
+	OR	A		;STRING?
+	JP	P,LOC9
+	LD	A,4
+LOC9:	LD	(HL),0		;INITIALISE TO ZERO
+	INC	HL
+	DEC	A
+	JR	NZ,LOC9
+	LD	(FREE),HL
+	CALL	CHECK
+	POP	HL
+	XOR	A
+	RET
+;
+;LINNUM - GET LINE NUMBER FROM TEXT STRING
+;   Inputs: IY = Text Pointer
+;  Outputs: HL = Line number (zero if none)
+;           IY updated
+; Destroys: A,D,E,H,L,IY,F
+;
+LINNUM:	CALL	NXT
+	LD	HL,0
+LINNM1:	LD	A,(IY)
+	SUB	'0'
+	RET	C
+	CP	10
+	RET	NC
+	INC	IY
+	LD	D,H
+	LD	E,L
+	ADD	HL,HL		;*2
+	JR	C,TOOBIG
+	ADD	HL,HL		;*4
+	JR	C,TOOBIG
+	ADD	HL,DE		;*5
+	JR	C,TOOBIG
+	ADD	HL,HL		;*10
+	JR	C,TOOBIG
+	LD	E,A
+	LD	D,0
+	ADD	HL,DE		;ADD IN DIGIT
+	JR	NC,LINNM1	
+TOOBIG:	LD	A,20
+	JP	ERROR		;"Too big"
+;
+;PAIR - GET PAIR OF LINE NUMBERS FOR RENUMBER/AUTO.
+;   Inputs: IY = text pointer
+;  Outputs: HL = first number (10 by default)
+;           BC = second number (10 by default)
+; Destroys: A,B,C,D,E,H,L,B',C',D',E',H',L',IY,F
+;
+PAIR:	CALL	LINNUM		;FIRST
+	LD	A,H
+	OR	L
+	JR	NZ,PAIR1
+	LD	L,10
+PAIR1:	CALL	TERMQ
+	INC	IY
+	PUSH	HL
+	LD	HL,10
+	CALL	NZ,LINNUM	;SECOND
+	EX	(SP),HL
+	POP	BC
+	LD	A,B
+	OR	C
+	RET	NZ
+	CALL	EXTERR
+	DEFM	'Silly'
+	DEFB	0
+;
+;DLPAIR - GET PAIR OF LINE NUMBERS FOR DELETE/LIST.
+;   Inputs: IY = text pointer
+;  Outputs: HL = points to program text
+;           BC = second number (0 by default)
+; Destroys: A,B,C,D,E,H,L,IY,F
+;
+DLPAIR:	CALL	LINNUM
+	PUSH	HL
+	CALL	TERMQ
+	JR	Z,DLP1
+	CP	TIF
+	JR	Z,DLP1
+	INC	IY
+	CALL	LINNUM
+DLP1:	EX	(SP),HL
+	CALL	FINDL
+	POP	BC
+	RET
+;
+;TEST FOR VALID CHARACTER IN VARIABLE NAME:
+;   Inputs: IY addresses character
+;  Outputs: Carry set if out-of-range.
+; Destroys: A,F
+;
+RANGE:	LD	A,(IY)
+	CP	'$'
+	RET	Z
+	CP	'%'
+	RET	Z
+	CP	'('
+	RET	Z
+	CP	'&'
+	RET	Z
+RANGE1:	CP	'0'
+	RET	C
+	CP	'9'+1
+	CCF
+	RET	NC
+	CP	'@'		;V2.4
+	RET	Z
+RANGE2:	CP	'A'
+	RET	C
+	CP	'Z'+1
+	CCF
+	RET	NC
+	CP	'_'
+	RET	C
+	CP	'z'+1
+	CCF
+	RET
+;
+;LEXAN - LEXICAL ANALYSIS.
+;  Bit 0,C: 1=left, 0=right
+;  Bit 3,C: 1=in HEX
+;  Bit 4,C: 1=accept line number
+;  Bit 5,C: 1=in variable, FN, PROC
+;  Bit 6,C: 1=in REM, DATA, *
+;  Bit 7,C: 1=in quotes
+;   Inputs: IY addresses source string
+;           DE addresses destination string
+;           (must be page boundary)
+;           C  sets initial mode
+;  Outputs: DE, IY updated
+;           A holds carriage return
+;
+LEXAN1:	LD	(DE),A		;TRANSFER TO BUFFER
+	INC	DE		;INCREMENT POINTERS
+	INC	IY
+LEXAN2:	LD	A,E		;MAIN ENTRY
+	CP	252		;TEST LENGTH
+	LD	A,19
+	JP	NC,ERROR	;'String too long'
+	LD	A,(IY)
+	CP	CR
+	RET	Z		;END OF LINE
+	CALL	RANGE1
+	JR	NC,LEXAN3
+	RES	5,C		;NOT IN VARIABLE
+	RES	3,C		;NOT IN HEX
+LEXAN3:	CP	' '
+	JR	Z,LEXAN1	;PASS SPACES
+	CP	','
+	JR	Z,LEXAN1	;PASS COMMAS
+	CP	'G'
+	JR	C,LEXAN4
+	RES	3,C		;NOT IN HEX
+LEXAN4:	CP	'"'
+	JR	NZ,LEXAN5
+	RL	C
+	CCF			;TOGGLE C7
+	RR	C
+LEXAN5:	BIT	4,C
+	JR	Z,LEXAN6
+	RES	4,C
+	PUSH	BC
+	PUSH	DE
+	CALL	LINNUM		;GET LINE NUMBER
+	POP	DE
+	POP	BC
+	LD	A,H
+	OR	L
+	CALL	NZ,ENCODE	;ENCODE LINE NUMBER
+	JR	LEXAN2		;CONTINUE
+;
+LEXAN6:	DEC	C
+	JR	Z,LEXAN7	;C=1 (LEFT)
+	INC	C
+	JR	NZ,LEXAN1
+	OR	A
+	CALL	P,LEX		;TOKENISE IF POSS.
+	JR	LEXAN8
+;
+LEXAN7:	CP	'*'
+	JR	Z,LEXAN9
+	OR	A
+	CALL	P,LEX		;TOKENISE IF POSS.
+	CP	TOKLO
+	JR	C,LEXAN8
+	CP	TOKHI+1
+	JR	NC,LEXAN8
+	ADD	A,OFFSET	;LEFT VERSION
+LEXAN8:	CP	TREM
+	JR	Z,LEXAN9
+	CP	TDATA
+	JR	NZ,LEXANA
+LEXAN9:	SET	6,C		;QUIT TOKENISING
+LEXANA:	CP	TFN
+	JR	Z,LEXANB
+	CP	TPROC
+	JR	Z,LEXANB
+	CALL	RANGE2
+	JR	C,LEXANC
+LEXANB:	SET	5,C		;IN VARIABLE/FN/PROC
+LEXANC:	CP	'&'
+	JR	NZ,LEXAND
+	SET	3,C		;IN HEX
+LEXAND:	LD	HL,LIST1
+	PUSH	BC
+	LD	BC,LIST1L
+	CPIR
+	POP	BC
+	JR	NZ,LEXANE
+	SET	4,C		;ACCEPT LINE NUMBER
+LEXANE:	LD	HL,LIST2
+	PUSH	BC
+	LD	BC,LIST2L
+	CPIR
+	POP	BC
+	JR	NZ,LEXANF
+	SET	0,C		;ENTER LEFT MODE
+LEXANF:	JP	LEXAN1
+;
+LIST1:	DEFB	TGOTO
+	DEFB	TGOSUB
+	DEFB	TRESTORE
+	DEFB	TTRACE
+LIST2:	DEFB	TTHEN
+	DEFB	TELSE
+LIST1L	EQU	$-LIST1
+	DEFB	TREPEAT
+	DEFB	TERROR
+	DEFB	':'
+LIST2L	EQU	$-LIST2
+;
+;ENCODE - ENCODE LINE NUMBER INTO PSEUDO-BINARY FORM.
+;   Inputs: HL=line number, DE=string pointer
+;  Outputs: DE updated, BIT 4,C set.
+; Destroys: A,B,C,D,E,H,L,F
+;
+ENCODE:	SET	4,C
+	EX	DE,HL
+	LD	(HL),TLINO
+	INC	HL
+	LD	A,D
+	AND	0C0H
+	RRCA
+	RRCA
+	LD	B,A
+	LD	A,E
+	AND	0C0H
+	OR	B
+	RRCA
+	RRCA
+	XOR	01010100B
+	LD	(HL),A
+	INC	HL
+	LD	A,E
+	AND	3FH
+	OR	'@'
+	LD	(HL),A
+	INC	HL
+	LD	A,D
+	AND	3FH
+	OR	'@'
+	LD	(HL),A
+	INC	HL
+	EX	DE,HL
+	RET
+;
+;TEXT - OUTPUT MESSAGE.
+;   Inputs: HL addresses text (terminated by nul)
+;  Outputs: HL addresses character following nul.
+; Destroys: A,H,L,F
+;
+REPORT:	LD	HL,(ERRTXT)
+TEXT:	LD	A,(HL)
+	INC	HL
+	OR	A
+	RET	Z
+	CP	LF
+	JR	Z,TEXTLF	;Token for TINT
+	CALL	OUT
+	JR	TEXT
+;
+TEXTLF:	CALL	OUTCHR
+	JR	TEXT
+;
+;TELL - OUTPUT MESSAGE.
+;   Inputs: Text follows subroutine call (term=nul)
+; Destroys: A,F
+;
+TELL:	EX	(SP),HL		;GET RETURN ADDRESS
+	CALL	TEXT
+	EX	(SP),HL
+	RET
+;
+; NLIST - Check for end of list
+;
+NLIST:	CALL	NXT
+	CP	','		;ANOTHER VARIABLE?
+	JR	Z,NXT1
+	POP	BC		;DITCH RETURN ADDRESS
+	JP	XEQ
+;
+NXT:	LD	A,(IY)
+	CP	' '
+	RET	NZ
+NXT1:	INC	IY
+	JR	NXT
+;
+	END	START
diff --git a/Source/Apps/BBCBASIC/math.z80 b/Source/Apps/BBCBASIC/math.z80
new file mode 100644
index 00000000..5a3ba8c3
--- /dev/null
+++ b/Source/Apps/BBCBASIC/math.z80
@@ -0,0 +1,2267 @@
+	TITLE	'(C) COPYRIGHT R.T.RUSSELL 1986-2024'
+	NAME	('MATH')
+;
+;Z80 FLOATING POINT PACKAGE
+;(C) COPYRIGHT  R.T.RUSSELL  1986-2024
+;VERSION 0.0, 26-10-1986
+;VERSION 0.1, 14-12-1988 (BUG FIX)
+;VERSION 5.0, 21-05-2024 (SHIFTS ADDED)
+;
+;BINARY FLOATING POINT REPRESENTATION:
+;   32 BIT SIGN-MAGNITUDE NORMALIZED MANTISSA
+;    8 BIT EXCESS-128 SIGNED EXPONENT
+;   SIGN BIT REPLACES MANTISSA MSB (IMPLIED "1")
+;   MANTISSA=0 & EXPONENT=0 IMPLIES VALUE IS ZERO.
+;
+;BINARY INTEGER REPRESENTATION:
+;   32 BIT 2'S-COMPLEMENT SIGNED INTEGER
+;    "EXPONENT" BYTE = 0 (WHEN PRESENT)
+;
+;NORMAL REGISTER ALLOCATION: MANTISSA - HLH'L'
+;                            EXPONENT - C
+;ALTERNATE REGISTER ALLOCATION: MANTISSA - DED'E'
+;                               EXPONENT - B
+;
+;Error codes:
+;
+BADOP	EQU	1		;Bad operation code
+DIVBY0	EQU	18		;Division by zero
+TOOBIG	EQU	20		;Too big
+NGROOT	EQU	21		;Negative root
+LOGRNG	EQU	22		;Log range
+ACLOST	EQU	23		;Accuracy lost
+EXPRNG	EQU	24		;Exp range
+;
+	GLOBAL	FPP
+	EXTRN	STORE5
+	EXTRN	DLOAD5
+;
+;Call entry and despatch code:
+;
+FPP:	PUSH	IY		;Save IY
+	LD	IY,0
+	ADD	IY,SP		;Save SP in IY
+	CALL	OP		;Perform operation
+	CP	A		;Good return (Z, NC)
+EXIT:	POP	IY		;Restore IY
+	RET			;Return to caller
+;
+;Error exit:
+;
+BAD:	LD	A,BADOP		;"Bad operation code"
+ERROR:	LD	SP,IY		;Restore SP from IY
+	OR	A		;Set NZ
+	SCF			;Set C
+	JR	EXIT
+;
+;Perform operation or function:
+;
+OP:	CP	(RTABLE-DTABLE)/2
+	JR	NC,BAD
+	CP	(FTABLE-DTABLE)/2
+	JR	NC,DISPAT
+	EX	AF,AF'
+	LD	A,B
+	OR	C		;Both integer?
+	CALL	NZ,FLOATA	;No, so float both
+	EX	AF,AF'
+DISPAT:	PUSH	HL
+	LD	HL,DTABLE
+	PUSH	BC
+	ADD	A,A		;A = op-code * 2
+	LD	C,A
+	LD	B,0		;BC = op-code * 2
+	ADD	HL,BC
+	LD	A,(HL)		;Get low byte
+	INC	HL
+	LD	H,(HL)		;Get high byte
+	LD	L,A
+	POP	BC
+	EX	(SP),HL
+	RET			;Off to routine
+;
+;Despatch table:
+;
+DTABLE:	DEFW	IAND		;0  AND (INTEGER)
+	DEFW	IBDIV		;1  DIV
+	DEFW	IEOR		;2  EOR
+	DEFW	IMOD		;3  MOD
+	DEFW	IOR		;4  OR
+	DEFW	ILE		;5  <=
+	DEFW	INE		;6  <>
+	DEFW	IGE		;7  >=
+	DEFW	ILT		;8  <
+	DEFW	IEQ		;9  =
+	DEFW	IMUL		;10 *
+	DEFW	IADD		;11 +
+	DEFW	IGT		;12 >
+	DEFW	ISUB		;13 -
+	DEFW	IPOW		;14 ^
+	DEFW	IDIV		;15 /
+;
+FTABLE:	DEFW	ABS		;16 ABS
+	DEFW	ACS		;17 ACS
+	DEFW	ASN		;18 ASN
+	DEFW	ATN		;19 ATN
+	DEFW	COS		;20 COS
+	DEFW	DEG		;21 DEG
+	DEFW	EXP		;22 EXP
+	DEFW	INT		;23 INT
+	DEFW	LN		;24 LN
+	DEFW	LOG		;25 LOG
+	DEFW	CPL		;26 NOT
+	DEFW	RAD		;27 RAD
+	DEFW	SGN		;28 SGN
+	DEFW	SIN		;29 SIN
+	DEFW	SQR		;30 SQR
+	DEFW	TAN		;31 TAN
+;
+	DEFW	ZERO		;32 ZERO
+	DEFW	FONE		;33 FONE
+	DEFW	TRUE		;34 TRUE
+	DEFW	PI		;35 PI
+;
+	DEFW	VAL		;36 VAL
+	DEFW	STR		;37 STR$
+;
+	DEFW	SFIX		;38 FIX
+	DEFW	SFLOAT		;39 FLOAT
+;
+	DEFW	FTEST		;40 TEST
+	DEFW	FCOMP		;41 COMPARE
+;
+	DEFW	ISHL		;42 <<
+	DEFW	ISHX		;43 <<<
+	DEFW	ISAR		;44 >>
+	DEFW	ISHR		;45 >>>
+;
+RTABLE:	DEFW	FAND		;AND (FLOATING-POINT)
+	DEFW	FBDIV		;DIV
+	DEFW	FEOR		;EOR
+	DEFW	FMOD		;MOD
+	DEFW	FOR		;OR
+	DEFW	FLE		;<= 
+	DEFW	FNE		;<>
+	DEFW	FGE		;>=
+	DEFW	FLT		;<
+	DEFW	FEQ		;=
+	DEFW	FMUL		;*
+	DEFW	FADD		;+
+	DEFW	FGT		;>
+	DEFW	FSUB		;-
+	DEFW	FPOW		;^
+	DEFW	FDIV		;/
+;
+;ARITHMETIC AND LOGICAL OPERATORS:
+;All take two arguments, in HLH'L'C & DED'E'B.
+;Output in HLH'L'C
+;All registers except IX, IY destroyed.
+; (N.B. FPOW destroys IX).
+;
+;FAND - Floating-point AND.
+;IAND - Integer AND.
+;
+FAND:	CALL	FIX2
+IAND:	LD	A,H
+	AND	D
+	LD	H,A
+	LD	A,L
+	AND	E
+	LD	L,A
+	EXX
+	LD	A,H
+	AND	D
+	LD	H,A
+	LD	A,L
+	AND	E
+	LD	L,A
+	EXX
+	RET
+;
+;FEOR - Floating-point exclusive-OR.
+;IEOR - Integer exclusive-OR.
+;
+FEOR:	CALL	FIX2
+IEOR:	LD	A,H
+	XOR	D
+	LD	H,A
+	LD	A,L
+	XOR	E
+	LD	L,A
+	EXX
+	LD	A,H
+	XOR	D
+	LD	H,A
+	LD	A,L
+	XOR	E
+	LD	L,A
+	EXX
+	RET
+;
+;FOR - Floating-point OR.
+;IOR - Integer OR.
+;
+FOR:	CALL	FIX2
+IOR:	LD	A,H
+	OR	D
+	LD	H,A
+	LD	A,L
+	OR	E
+	LD	L,A
+	EXX
+	LD	A,H
+	OR	D
+	LD	H,A
+	LD	A,L
+	OR	E
+	LD	L,A
+	EXX
+	RET
+;
+;FMOD - Floating-point remainder.
+;IMOD - Integer remainder.
+;
+FMOD:	CALL	FIX2
+IMOD:	LD	A,H
+	XOR	D		;DIV RESULT SIGN
+	BIT	7,H
+	CALL	ABS2		;MAKE BOTH POSITIVE
+	LD	A,-33
+	CALL	DIVA		;DIVIDE
+	EXX
+	LD	C,0		;INTEGER MARKER
+	EX	AF,AF'
+	RET	Z
+	JP	NEGATE
+;
+;BDIV - Integer division.
+;
+FBDIV:	CALL	FIX2
+IBDIV:	CALL	IMOD
+	OR	A
+	CALL	SWAP
+	LD	C,0
+	RET	P
+	JP	NEGATE
+;
+;ISUB - Integer subtraction.
+;FSUB - Floating point subtraction with rounding.
+;
+ISUB:	CALL	SUB
+	RET	PO
+	CALL	ADD
+	CALL	FLOAT2
+FSUB:	LD	A,D
+	XOR	80H		;CHANGE SIGN THEN ADD
+	LD	D,A
+	JR	FADD
+;
+;Reverse subtract.
+;
+RSUB:	LD	A,H
+	XOR	80H
+	LD	H,A
+	JR	FADD
+;
+;IADD - Integer addition.
+;FADD - Floating point addition with rounding.
+;
+IADD:	CALL	ADD
+	RET	PO
+	CALL	SUB
+	CALL	FLOAT2
+FADD:	DEC	B
+	INC	B
+	RET	Z		;ARG 2 ZERO
+	DEC	C
+	INC	C
+	JP	Z,SWAP		;ARG 1 ZERO
+	EXX
+	LD	BC,0		;INITIALISE
+	EXX
+	LD	A,H
+	XOR	D		;XOR SIGNS
+	PUSH	AF
+	LD	A,B
+	CP	C		;COMPARE EXPONENTS
+	CALL	C,SWAP		;MAKE DED'E'B LARGEST
+	LD	A,B
+	SET	7,H		;IMPLIED 1
+	CALL	NZ,FIX		;ALIGN
+	POP	AF
+	LD	A,D		;SIGN OF LARGER
+	SET	7,D		;IMPLIED 1
+	JP	M,FADD3		;SIGNS DIFFERENT
+	CALL	ADD		;HLH'L'=HLH'L'+DED'E'
+	CALL	C,DIV2		;NORMALISE
+	SET	7,H
+	JR	FADD4
+;
+FADD3:	CALL	SUB		;HLH'L'=HLH'L'-DED'E'
+	CALL	C,NEG		;NEGATE HLH'L'B'C'
+	CALL	FLO48
+	CPL			;CHANGE RESULT SIGN
+FADD4:	EXX
+	EX	DE,HL
+	LD	HL,8000H
+	OR	A		;CLEAR CARRY
+	SBC	HL,BC
+	EX	DE,HL
+	EXX
+	CALL	Z,ODD		;ROUND UNBIASSED
+	CALL	C,ADD1		;ROUND UP
+	CALL	C,INCC
+	RES	7,H
+	DEC	C
+	INC	C
+	JP	Z,ZERO
+	OR	A		;RESULT SIGNQ
+	RET	P		;POSITIVE
+	SET	7,H		;NEGATIVE
+	RET
+;
+;IDIV - Integer division.
+;FDIV - Floating point division with rounding.
+;
+IDIV:	CALL	FLOAT2
+FDIV:	DEC	B		;TEST FOR ZERO
+	INC	B
+	LD	A,DIVBY0
+	JP	Z,ERROR		;"Division by zero"
+	DEC	C		;TEST FOR ZERO
+	INC	C
+	RET	Z
+	LD	A,H
+	XOR	D		;CALC. RESULT SIGN
+	EX	AF,AF'		;SAVE SIGN
+	SET	7,D		;REPLACE IMPLIED 1's
+	SET	7,H
+	PUSH	BC		;SAVE EXPONENTS
+	LD	B,D		;LOAD REGISTERS
+	LD	C,E
+	LD	DE,0
+	EXX
+	LD	B,D
+	LD	C,E
+	LD	DE,0
+	LD	A,-32		;LOOP COUNTER
+	CALL	DIVA		;DIVIDE
+	EXX
+	BIT	7,D
+	EXX
+	CALL	Z,DIVB		;NORMALISE & INC A
+	EX	DE,HL
+	EXX
+	SRL	B		;DIVISOR/2
+	RR	C
+	OR	A		;CLEAR CARRY
+	SBC	HL,BC		;REMAINDER-DIVISOR/2
+	CCF
+	EX	DE,HL		;RESULT IN HLH'L'
+	CALL	Z,ODD		;ROUND UNBIASSED
+	CALL	C,ADD1		;ROUND UP
+	POP	BC		;RESTORE EXPONENTS
+	CALL	C,INCC
+	RRA			;LSB OF A TO CARRY
+	LD	A,C		;COMPUTE NEW EXPONENT
+	SBC	A,B
+	CCF
+	JP	CHKOVF
+;
+;IMUL - Integer multiplication.
+;
+IMUL:	LD	A,H
+	XOR	D
+	CALL	ABS2		;MAKE BOTH POSITIVE
+	LD	A,-33
+	CALL	MULA		;MULTIPLY
+	EXX
+	LD	C,191		;PRESET EXPONENT
+	CALL	TEST		;TEST RANGE
+	JR	NZ,IMUL1	;TOO BIG
+	BIT	7,D
+	JR	NZ,IMUL1
+	CALL	SWAP
+	LD	C,D		;INTEGER MARKER
+	EX	AF,AF'
+	RET	P
+	JP	NEGATE
+;
+IMUL1:	DEC	C
+	EXX
+	SLA	E
+	RL	D
+	EXX
+	RL	E
+	RL	D
+	EXX
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	JP	P,IMUL1		;NORMALISE
+	EX	AF,AF'
+	RET	M
+	RES	7,H		;POSITIVE
+	RET
+;
+;FMUL - Floating point multiplication with rounding.
+;
+FMUL:	DEC	B		;TEST FOR ZERO
+	INC	B
+	JP	Z,ZERO
+	DEC	C		;TEST FOR ZERO
+	INC	C
+	RET	Z
+	LD	A,H
+	XOR	D		;CALC. RESULT SIGN
+	EX	AF,AF'
+	SET	7,D		;REPLACE IMPLIED 1's
+	SET	7,H
+	PUSH	BC		;SAVE EXPONENTS
+	LD	B,H		;LOAD REGISTERS
+	LD	C,L
+	LD	HL,0
+	EXX
+	LD	B,H
+	LD	C,L
+	LD	HL,0
+	LD	A,-32		;LOOP COUNTER
+	CALL	MULA		;MULTIPLY
+	CALL	C,MULB		;NORMALISE & INC A
+	EXX
+	PUSH	HL
+	LD	HL,8000H
+	OR	A		;CLEAR CARRY
+	SBC	HL,DE
+	POP	HL
+	CALL	Z,ODD		;ROUND UNBIASSED
+	CALL	C,ADD1		;ROUND UP
+	POP	BC		;RESTORE EXPONENTS
+	CALL	C,INCC
+	RRA			;LSB OF A TO CARRY
+	LD	A,C		;COMPUTE NEW EXPONENT
+	ADC	A,B
+CHKOVF:	JR	C,CHKO1
+	JP	P,ZERO		;UNDERFLOW
+	JR	CHKO2
+CHKO1:	JP	M,OFLOW		;OVERFLOW
+CHKO2:	ADD	A,80H
+	LD	C,A
+	JP	Z,ZERO
+	EX	AF,AF'		;RESTORE SIGN BIT
+	RES	7,H
+	RET	P
+	SET	7,H
+	RET
+;
+;IPOW - Integer involution.
+;
+IPOW:	CALL	SWAP
+	BIT	7,H
+	PUSH	AF		;SAVE SIGN
+	CALL	NZ,NEGATE
+IPOW0:	LD	C,B
+	LD	B,32		;LOOP COUNTER
+IPOW1:	CALL	X2
+	JR	C,IPOW2
+	DJNZ	IPOW1
+	POP	AF
+	EXX
+	INC	L		;RESULT=1
+	EXX
+	LD	C,H
+	RET
+;
+IPOW2:	POP	AF
+	PUSH	BC
+	EX	DE,HL
+	PUSH	HL
+	EXX
+	EX	DE,HL
+	PUSH	HL
+	EXX
+	LD	IX,0
+	ADD	IX,SP
+	JR	Z,IPOW4
+	PUSH	BC
+	EXX
+	PUSH	DE
+	EXX
+	PUSH	DE
+	CALL	SFLOAT
+	CALL	RECIP
+	CALL	STORE5
+	JR	IPOW5
+;
+IPOW3:	PUSH	BC
+	EXX
+	SLA	E
+	RL	D
+	PUSH	DE
+	EXX
+	RL	E
+	RL	D
+	PUSH	DE
+	LD	A,'*' AND 0FH
+	PUSH	AF
+	CALL	COPY
+	CALL	OP		;SQUARE
+	POP	AF
+	CALL	DLOAD5
+	CALL	C,OP		;MULTIPLY BY X
+IPOW5:	POP	DE
+	EXX
+	POP	DE
+	EXX
+	LD	A,C
+	POP	BC
+	LD	C,A
+IPOW4:	DJNZ	IPOW3
+	POP	AF
+	POP	AF
+	POP	AF
+	RET
+;
+FPOW0:	POP	AF
+	POP	AF
+	POP	AF
+	JR	IPOW0
+;
+;FPOW - Floating-point involution.
+;
+FPOW:	BIT	7,D
+	PUSH	AF
+	CALL	SWAP
+	CALL	PUSH5
+	DEC	C
+	INC	C
+	JR	Z,FPOW0
+	LD	A,158
+	CP	C
+	JR	C,FPOW1
+	INC	A
+	CALL	FIX
+	EX	AF,AF'
+	JP	P,FPOW0
+FPOW1:	CALL	SWAP
+	CALL	LN0
+	CALL	POP5
+	POP	AF
+	CALL	FMUL
+	JP	EXP0
+;
+;Integer and floating-point compare.
+;Result is TRUE (-1) or FALSE (0).
+;
+FLT:	CALL	FCP
+	JR	ILT1
+ILT:	CALL	ICP
+ILT1:	RET	NC
+	JR	TRUE
+;
+FGT:	CALL	FCP
+	JR	IGT1
+IGT:	CALL	ICP
+IGT1:	RET	Z
+	RET	C
+	JR	TRUE
+;
+FGE:	CALL	FCP
+	JR	IGE1
+IGE:	CALL	ICP
+IGE1:	RET	C
+	JR	TRUE
+;
+FLE:	CALL	FCP
+	JR	ILE1
+ILE:	CALL	ICP
+ILE1:	JR	Z,TRUE
+	RET	NC
+	JR	TRUE
+;
+FNE:	CALL	FCP
+	JR	INE1
+INE:	CALL	ICP
+INE1:	RET	Z
+	JR	TRUE
+;
+FEQ:	CALL	FCP
+	JR	IEQ1
+IEQ:	CALL	ICP
+IEQ1:	RET	NZ
+TRUE:	LD	HL,-1
+	EXX
+	LD	HL,-1
+	EXX
+	XOR	A
+	LD	C,A
+	RET
+;
+;Integer shifts:
+;
+ISHX:
+ISHL:	CALL	SHIFTS
+	JR	Z,SHRET
+ISHL1:	EXX
+	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	DJNZ	ISHL1
+SHRET:	RET
+;
+ISAR:	CALL	SHIFTS
+	JR	Z,SHRET
+ISAR1:	SRA	H
+	RR	L
+	EXX
+	RR	H
+	RR	L
+	EXX
+	DJNZ	ISAR1
+	RET
+;
+ISHR:	CALL	SHIFTS
+	JR	Z,SHRET
+ISHR1:	SRL	H
+	RR	L
+	EXX
+	RR	H
+	RR	L
+	EXX
+	DJNZ	ISHR1
+	RET
+;
+SHIFTS:	CALL	FIX2
+	LD	A,D
+	OR	E
+	EXX
+	OR	D
+	LD	A,E
+	EXX
+	LD	B,32
+	JR	NZ,SHMAX
+	LD	B,A
+	OR	A
+SHMAX:	RET
+;
+;FUNCTIONS:
+;
+;Result returned in HLH'L'C (floating point)
+;Result returned in HLH'L' (C=0) (integer)
+;All registers except IY destroyed.
+;
+;ABS - Absolute value
+;Result is numeric, variable type.
+;
+ABS:	BIT	7,H
+	RET	Z		;POSITIVE/ZERO
+	DEC	C
+	INC	C
+	JP	Z,NEGATE	;INTEGER
+	RES	7,H
+	RET
+;
+;NOT - Complement integer.
+;Result is integer numeric.
+;
+CPL:	CALL	SFIX
+	LD	A,H
+	CPL
+	LD	H,A
+	LD	A,L
+	CPL
+	LD	L,A
+	EXX
+	LD	A,H
+	CPL
+	LD	H,A
+	LD	A,L
+	CPL
+	LD	L,A
+	EXX
+	XOR	A		;NUMERIC MARKER
+	RET
+;
+;PI - Return PI (3.141592654)
+;Result is floating-point numeric.
+;
+PI:	LD	HL,490FH
+	EXX
+	LD	HL,0DAA2H
+	EXX
+	LD	C,81H
+	XOR	A		;NUMERIC MARKER
+	RET
+;
+;DEG - Convert radians to degrees
+;Result is floating-point numeric.
+;
+DEG:	CALL	FPI180
+	CALL	FMUL
+	XOR	A
+	RET
+;
+;RAD - Convert degrees to radians
+;Result is floating-point numeric.
+;
+RAD:	CALL	FPI180
+	CALL	FDIV
+	XOR	A
+	RET
+;
+;180/PI
+;
+FPI180:	CALL	SFLOAT
+	LD	DE,652EH
+	EXX
+	LD	DE,0E0D3H
+	EXX
+	LD	B,85H
+	RET
+;
+;SGN - Return -1, 0 or +1
+;Result is integer numeric.
+;
+SGN:	CALL	TEST
+	OR	C
+	RET	Z		;ZERO
+	BIT	7,H
+	JP	NZ,TRUE		;-1
+	CALL	ZERO
+	JP	ADD1		;1
+;
+;VAL - Return numeric value of string.
+;Input: ASCII string at IX
+;Result is variable type numeric.
+;
+VAL:	CALL	SIGNQ
+	PUSH	AF
+	CALL	CON
+	POP	AF
+	CP	'-'
+	LD	A,0		;NUMERIC MARKER
+	RET	NZ
+	DEC	C
+	INC	C
+	JP	Z,NEGATE	;ZERO/INTEGER
+	LD	A,H
+	XOR	80H		;CHANGE SIGN (FP)
+	LD	H,A
+	XOR	A
+	RET
+;
+;INT - Floor function
+;Result is integer numeric.
+;
+INT:	DEC	C
+	INC	C
+	RET	Z		;ZERO/INTEGER
+	LD	A,159
+	LD	B,H		;B7=SIGN BIT
+	CALL	FIX
+	EX	AF,AF'
+	AND	B
+	CALL	M,ADD1		;NEGATIVE NON-INTEGER
+	LD	A,B
+	OR	A
+	CALL	M,NEGATE
+	XOR	A
+	LD	C,A
+	RET
+;
+;SQR - square root
+;Result is floating-point numeric.
+;
+SQR:	CALL	SFLOAT
+SQR0:	BIT	7,H
+	LD	A,NGROOT
+	JP	NZ,ERROR	;"-ve root"
+	DEC	C
+	INC	C
+	RET	Z		;ZERO
+	SET	7,H		;IMPLIED 1
+	BIT	0,C
+	CALL	Z,DIV2		;MAKE EXPONENT ODD
+	LD	A,C
+	SUB	80H
+	SRA	A		;HALVE EXPONENT
+	ADD	A,80H
+	LD	C,A
+	PUSH	BC		;SAVE EXPONENT
+	EX	DE,HL
+	LD	HL,0
+	LD	B,H
+	LD	C,L
+	EXX
+	EX	DE,HL
+	LD	HL,0
+	LD	B,H
+	LD	C,L
+	LD	A,-31
+	CALL	SQRA		;ROOT
+	EXX
+	BIT	7,B
+	EXX
+	CALL	Z,SQRA		;NORMALISE & INC A
+	CALL	SQRB
+	OR	A		;CLEAR CARRY
+	CALL	DIVB
+	RR	E		;LSB TO CARRY
+	LD	H,B
+	LD	L,C
+	EXX
+	LD	H,B
+	LD	L,C
+	CALL	C,ADD1		;ROUND UP
+	POP	BC		;RESTORE EXPONENT
+	CALL	C,INCC
+	RRA
+	SBC	A,A
+	ADD	A,C
+	LD	C,A
+	RES	7,H		;POSITIVE
+	XOR	A
+	RET
+;
+;TAN - Tangent function
+;Result is floating-point numeric.
+;
+TAN:	CALL	SFLOAT
+	CALL	PUSH5
+	CALL	COS0
+	CALL	POP5
+	CALL	PUSH5
+	CALL	SWAP
+	CALL	SIN0
+	CALL	POP5
+	CALL	FDIV
+	XOR	A		;NUMERIC MARKER
+	RET
+;
+;COS - Cosine function
+;Result is floating-point numeric.
+;
+COS:	CALL	SFLOAT
+COS0:	CALL	SCALE
+	INC	E
+	INC	E
+	LD	A,E
+	JR	SIN1
+;
+;SIN - Sine function
+;Result is floating-point numeric.
+;
+SIN:	CALL	SFLOAT
+SIN0:	PUSH	HL		;H7=SIGN
+	CALL	SCALE
+	POP	AF
+	RLCA
+	RLCA
+	RLCA
+	AND	4
+	XOR	E
+SIN1:	PUSH	AF		;OCTANT
+	RES	7,H
+	RRA
+	CALL	PIBY4
+	CALL	C,RSUB		;X=(PI/4)-X
+	POP	AF
+	PUSH	AF
+	AND	3
+	JP	PO,SIN2		;USE COSINE APPROX.
+	CALL	PUSH5		;SAVE X
+	CALL	SQUARE		;PUSH X*X
+	CALL	POLY
+	DEFW	0A8B7H		;a(8)
+	DEFW	3611H
+	DEFB	6DH
+	DEFW	0DE26H		;a(6)
+	DEFW	0D005H
+	DEFB	73H
+	DEFW	80C0H		;a(4)
+	DEFW	888H
+	DEFB	79H
+	DEFW	0AA9DH		;a(2)
+	DEFW	0AAAAH
+	DEFB	7DH
+	DEFW	0		;a(0)
+	DEFW	0
+	DEFB	80H
+	CALL	POP5
+	CALL	POP5
+	CALL	FMUL
+	JP	SIN3
+;
+SIN2:	CALL	SQUARE		;PUSH X*X
+	CALL	POLY
+	DEFW	0D571H		;b(8)
+	DEFW	4C78H
+	DEFB	70H
+	DEFW	94AFH		;b(6)
+	DEFW	0B603H
+	DEFB	76H
+	DEFW	9CC8H		;b(4)
+	DEFW	2AAAH
+	DEFB	7BH
+	DEFW	0FFDDH		;b(2)
+	DEFW	0FFFFH
+	DEFB	7EH
+	DEFW	0		;b(0)
+	DEFW	0
+	DEFB	80H
+	CALL	POP5
+SIN3:	POP	AF
+	AND	4
+	RET	Z
+	DEC	C
+	INC	C
+	RET	Z		;ZERO
+	SET	7,H		;MAKE NEGATIVE
+	RET
+;
+;Floating-point one:
+;
+FONE:	LD	HL,0
+	EXX
+	LD	HL,0
+	EXX
+	LD	C,80H
+	RET
+;
+DONE:	LD	DE,0
+	EXX
+	LD	DE,0
+	EXX
+	LD	B,80H
+	RET
+;
+PIBY4:	LD	DE,490FH
+	EXX
+	LD	DE,0DAA2H
+	EXX
+	LD	B,7FH
+	RET
+;
+;EXP - Exponential function
+;Result is floating-point numeric.
+;
+EXP:	CALL	SFLOAT
+EXP0:	CALL	LN2		;LN(2)
+	EXX
+	DEC	E
+	LD	BC,0D1CFH	;0.6931471805599453
+	EXX
+	PUSH	HL		;H7=SIGN
+	CALL	MOD48		;"MODULUS"
+	POP	AF
+	BIT	7,E
+	JR	Z,EXP1
+	RLA
+	JP	C,ZERO
+	LD	A,EXPRNG
+	JP	ERROR		;"Exp range"
+;
+EXP1:	AND	80H
+	OR	E
+	PUSH	AF		;INTEGER PART
+	RES	7,H
+	CALL	PUSH5		;PUSH X*LN(2)
+	CALL	POLY
+	DEFW	4072H		;a(7)
+	DEFW	942EH
+	DEFB	73H
+	DEFW	6F65H		;a(6)
+	DEFW	2E4FH
+	DEFB	76H
+	DEFW	6D37H		;a(5)
+	DEFW	8802H
+	DEFB	79H
+	DEFW	0E512H		;a(4)
+	DEFW	2AA0H
+	DEFB	7BH
+	DEFW	4F14H		;a(3)
+	DEFW	0AAAAH
+	DEFB	7DH
+	DEFW	0FD56H		;a(2)
+	DEFW	7FFFH
+	DEFB	7EH
+	DEFW	0FFFEH		;a(1)
+	DEFW	0FFFFH
+	DEFB	7FH
+	DEFW	0		;a(0)
+	DEFW	0
+	DEFB	80H
+	CALL	POP5
+	POP	AF
+	PUSH	AF
+	CALL	P,RECIP		;X=1/X
+	POP	AF
+	JP	P,EXP4
+	AND	7FH
+	NEG
+EXP4:	ADD	A,80H
+	ADD	A,C
+	JR	C,EXP2
+	JP	P,ZERO		;UNDERFLOW
+	JR	EXP3
+EXP2:	JP	M,OFLOW		;OVERFLOW
+EXP3:	ADD	A,80H
+	JP	Z,ZERO
+	LD	C,A
+	XOR	A		;NUMERIC MARKER
+	RET
+;
+RECIP:	CALL	DONE
+RDIV:	CALL	SWAP
+	JP	FDIV		;RECIPROCAL
+;
+LN2:	LD	DE,3172H	;LN(2)
+	EXX
+	LD	DE,17F8H
+	EXX
+	LD	B,7FH
+	RET
+;
+;LN - Natural log.
+;Result is floating-point numeric.
+;
+LN:	CALL	SFLOAT
+LN0:	LD	A,LOGRNG
+	BIT	7,H
+	JP	NZ,ERROR	;"Log range"
+	INC	C
+	DEC	C
+	JP	Z,ERROR
+	LD	DE,3504H	;SQR(2)
+	EXX
+	LD	DE,0F333H	;1.41421356237
+	EXX
+	CALL	ICP0		;MANTISSA>SQR(2)?
+	LD	A,C		;EXPONENT
+	LD	C,80H		;1 <= X < 2
+	JR	C,LN4
+	DEC	C
+	INC	A
+LN4:	PUSH	AF		;SAVE EXPONENT
+	CALL	RATIO		;X=(X-1)/(X+1)
+	CALL	PUSH5
+	CALL	SQUARE		;PUSH X*X
+	CALL	POLY
+	DEFW	0CC48H		;a(9)
+	DEFW	74FBH
+	DEFB	7DH
+	DEFW	0AEAFH		;a(7)
+	DEFW	11FFH
+	DEFB	7EH
+	DEFW	0D98CH		;a(5)
+	DEFW	4CCDH
+	DEFB	7EH
+	DEFW	0A9E3H		;a(3)
+	DEFW	2AAAH
+	DEFB	7FH
+	DEFW	0		;a(1)
+	DEFW	0
+	DEFB	81H
+	CALL	POP5
+	CALL	POP5
+	CALL	FMUL
+	POP	AF		;EXPONENT
+	CALL	PUSH5
+	EX	AF,AF'
+	CALL	ZERO
+	EX	AF,AF'
+	SUB	80H
+	JR	Z,LN3
+	JR	NC,LN1
+	CPL
+	INC	A
+LN1:	LD	H,A
+	LD	C,87H
+	PUSH	AF
+	CALL	FLOAT
+	RES	7,H
+	CALL	LN2
+	CALL	FMUL
+	POP	AF
+	JR	NC,LN3
+	JP	M,LN3
+	SET	7,H
+LN3:	CALL	POP5
+	CALL	FADD
+	XOR	A
+	RET
+;
+;LOG - base-10 logarithm.
+;Result is floating-point numeric.
+;
+LOG:	CALL	LN
+	LD	DE,5E5BH	;LOG(e)
+	EXX
+	LD	DE,0D8A9H
+	EXX
+	LD	B,7EH
+	CALL	FMUL
+	XOR	A
+	RET
+;
+;ASN - Arc-sine
+;Result is floating-point numeric.
+;
+ASN:	CALL	SFLOAT
+	CALL	PUSH5
+	CALL	COPY
+	CALL	FMUL
+	CALL	DONE
+	CALL	RSUB
+	CALL	SQR0
+	CALL	POP5
+	INC	C
+	DEC	C
+	LD	A,2
+	PUSH	DE
+	JR	Z,ACS1
+	POP	DE
+	CALL	RDIV
+	JR	ATN0
+;
+;ATN - arc-tangent
+;Result is floating-point numeric.
+;
+ATN:	CALL	SFLOAT
+ATN0:	PUSH	HL		;SAVE SIGN
+	RES	7,H
+	LD	DE,5413H	;TAN(PI/8)=SQR(2)-1
+	EXX
+	LD	DE,0CCD0H
+	EXX
+	LD	B,7EH
+	CALL	FCP0		;COMPARE
+	LD	B,0
+	JR	C,ATN2
+	LD	DE,1A82H	;TAN(3*PI/8)=SQR(2)+1
+	EXX
+	LD	DE,799AH
+	EXX
+	LD	B,81H
+	CALL	FCP0		;COMPARE
+	JR	C,ATN1
+	CALL	RECIP		;X=1/X
+	LD	B,2
+	JP	ATN2
+ATN1:	CALL	RATIO		;X=(X-1)/(X+1)
+	LD	B,1
+ATN2:	PUSH	BC		;SAVE FLAG
+	CALL	PUSH5
+	CALL	SQUARE		;PUSH X*X
+	CALL	POLY
+	DEFW	0F335H		;a(13)
+	DEFW	37D8H
+	DEFB	7BH
+	DEFW	6B91H		;a(11)
+	DEFW	0AAB9H
+	DEFB	7CH
+	DEFW	41DEH		;a(9)
+	DEFW	6197H
+	DEFB	7CH
+	DEFW	9D7BH		;a(7)
+	DEFW	9237H
+	DEFB	7DH
+	DEFW	2A5AH		;a(5)
+	DEFW	4CCCH
+	DEFB	7DH
+	DEFW	0A95CH		;a(3)
+	DEFW	0AAAAH
+	DEFB	7EH
+	DEFW	0		;a(1)
+	DEFW	0
+	DEFB	80H
+	CALL	POP5
+	CALL	POP5
+	CALL	FMUL
+	POP	AF
+ACS1:	CALL	PIBY4		;PI/4
+	RRA
+	PUSH	AF
+	CALL	C,FADD
+	POP	AF
+	INC	B
+	RRA
+	CALL	C,RSUB
+	POP	AF
+	OR	A
+	RET	P
+	SET	7,H		;MAKE NEGATIVE
+	XOR	A
+	RET
+;
+;ACS - Arc cosine=PI/2-ASN.
+;Result is floating point numeric.
+;
+ACS:	CALL	ASN
+	LD	A,2
+	PUSH	AF
+	JR	ACS1
+;
+;Function STR - convert numeric value to ASCII string.
+;   Inputs: HLH'L'C = integer or floating-point number
+;           DE = address at which to store string
+;           IX = address of @% format control
+;  Outputs: String stored, with NUL terminator
+;
+;First normalise for decimal output:
+;
+STR:	CALL	SFLOAT
+	LD	B,0		;DEFAULT PT. POSITION
+	BIT	7,H		;NEGATIVE?
+	JR	Z,STR10
+	RES	7,H
+	LD	A,'-'
+	LD	(DE),A		;STORE SIGN
+	INC	DE
+STR10:	XOR	A		;CLEAR A
+	CP	C
+	JR	Z,STR2		;ZERO
+	PUSH	DE		;SAVE TEXT POINTER
+	LD	A,B
+STR11:	PUSH	AF		;SAVE DECIMAL COUNTER
+	LD	A,C		;BINARY EXPONENT
+	CP	161
+	JR	NC,STR14
+	CP	155
+	JR	NC,STR15
+	CPL
+	CP	225
+	JR	C,STR13
+	LD	A,-8
+STR13:	ADD	A,28
+	CALL	POWR10
+	PUSH	AF
+	CALL	FMUL
+	POP	AF
+	LD	B,A
+	POP	AF
+	SUB	B
+	JR	STR11
+STR14:	SUB	32
+	CALL	POWR10
+	PUSH	AF
+	CALL	FDIV
+	POP	AF
+	LD	B,A
+	POP	AF
+	ADD	A,B
+	JR	STR11
+STR15:	LD	A,9
+	CALL	POWR10		;10^9
+	CALL	FCP0
+	LD	A,C
+	POP	BC
+	LD	C,A
+	SET	7,H		;IMPLIED 1
+	CALL	C,X10B		;X10, DEC B
+	POP	DE		;RESTORE TEXT POINTER
+	RES	7,C
+	LD	A,0
+	RLA			;PUT CARRY IN LSB
+;
+;At this point decimal normalisation has been done,
+;now convert to decimal digits:
+;      AHLH'L' = number in normalised integer form
+;            B = decimal place adjustment
+;            C = binary place adjustment (29-33)
+;
+STR2:	INC	C
+	EX	AF,AF'		;SAVE A
+	LD	A,B
+	BIT	1,(IX+2)
+	JR	NZ,STR20
+	XOR	A
+	CP	(IX+1)
+	JR	Z,STR21
+	LD	A,-10
+STR20:	ADD	A,(IX+1)	;SIG. FIG. COUNT
+	OR	A		;CLEAR CARRY
+	JP	M,STR21
+	XOR	A
+STR21:	PUSH	AF
+	EX	AF,AF'		;RESTORE A
+STR22:	CALL	X2		;RL AHLH'L'
+	ADC	A,A
+	CP	10
+	JR	C,STR23
+	SUB	10
+	EXX
+	INC	L		;SET RESULT BIT
+	EXX
+STR23:	DEC	C
+	JR	NZ,STR22	;32 TIMES
+	LD	C,A		;REMAINDER
+	LD	A,H
+	AND	3FH		;CLEAR OUT JUNK
+	LD	H,A
+	POP	AF
+	JP	P,STR24
+	INC	A
+	JR	NZ,STR26
+	LD	A,4
+	CP	C		;ROUND UP?
+	LD	A,0
+	JR	STR26
+STR24:	PUSH	AF
+	LD	A,C
+	ADC	A,'0'		;ADD CARRY
+	CP	'0'
+	JR	Z,STR25		;SUPPRESS ZERO
+	CP	'9'+1
+	CCF
+	JR	NC,STR26
+STR25:	EX	(SP),HL
+	BIT	6,L		;ZERO FLAG
+	EX	(SP),HL
+	JR	NZ,STR27
+	LD	A,'0'
+STR26:	INC	A		;SET +VE
+	DEC	A
+	PUSH	AF		;PUT ON STACK + CARRY
+STR27:	INC	B
+	CALL	TEST		;IS HLH'L' ZERO?
+	LD	C,32
+	LD	A,0
+	JR	NZ,STR22
+	POP	AF
+	PUSH	AF
+	LD	A,0
+	JR	C,STR22
+;
+;At this point, the decimal character string is stored
+; on the stack. Trailing zeroes are suppressed and may
+; need to be replaced.
+;B register holds decimal point position.
+;Now format number and store as ASCII string:
+;
+STR3:	EX	DE,HL		;STRING POINTER
+	LD	C,-1		;FLAG "E"
+	LD	D,1
+	LD	E,(IX+1)	;f2
+	BIT	0,(IX+2)
+	JR	NZ,STR34	;E MODE
+	BIT	1,(IX+2)
+	JR	Z,STR31
+	LD	A,B		;F MODE
+	OR	A
+	JR	Z,STR30
+	JP	M,STR30
+	LD	D,B
+STR30:	LD	A,D
+	ADD	A,(IX+1)
+	LD	E,A
+	CP	11
+	JR	C,STR32
+STR31:	LD	A,B		;G MODE
+	LD	DE,101H
+	OR	A
+	JP	M,STR34
+	JR	Z,STR32
+	LD	A,(IX+1)
+	OR	A
+	JR	NZ,STR3A
+	LD	A,10
+STR3A:	CP	B
+	JR	C,STR34
+	LD	D,B
+	LD	E,B
+STR32:	LD	A,B
+	ADD	A,129
+	LD	C,A
+STR34:	SET	7,D
+	DEC	E
+STR35:	LD	A,D
+	CP	C
+	JR	NC,STR33
+STR36:	POP	AF
+	JR	Z,STR37
+	JP	P,STR38
+STR37:	PUSH	AF
+	INC	E
+	DEC	E
+	JP	M,STR4
+STR33:	LD	A,'0'
+STR38:	DEC	D
+	JP	PO,STR39
+	LD	(HL),'.'
+	INC	HL
+STR39:	LD	(HL),A
+	INC	HL
+	DEC	E
+	JP	P,STR35
+	JR	STR36
+;
+STR4:	POP	AF
+STR40:	INC	C
+	LD	C,L
+	JR	NZ,STR44
+	LD	(HL),'E'	;EXPONENT
+	INC	HL
+	LD	A,B
+	DEC	A
+	JP	P,STR41
+	LD	(HL),'-'
+	INC	HL
+	NEG
+STR41:	LD	(HL),'0'
+	JR	Z,STR47
+	CP	10
+	LD	B,A
+	LD	A,':'
+	JR	C,STR42
+	INC	HL
+	LD	(HL),'0'
+STR42:	INC	(HL)
+	CP	(HL)
+	JR	NZ,STR43
+	LD	(HL),'0'
+	DEC	HL
+	INC	(HL)
+	INC	HL
+STR43:	DJNZ	STR42
+STR47:	INC	HL
+STR44:	EX	DE,HL
+	RET
+;
+;Support subroutines:
+;
+;CON - Get unsigned numeric constant from ASCII string.
+;   Inputs: ASCII string at (IX).
+;  Outputs: Variable-type result in HLH'L'C
+;           IX updated (points to delimiter)
+;           A7 = 0 (numeric marker)
+;
+CON:	CALL	ZERO		;INITIALISE TO ZERO
+	LD	C,0		;TRUNCATION COUNTER
+	CALL	NUMBER		;GET INTEGER PART
+	CP	'.'
+	LD	B,0		;DECL. PLACE COUNTER
+	CALL	Z,NUMBIX	;GET FRACTION PART
+	CP	'E'
+	LD	A,0		;INITIALISE EXPONENT
+	CALL	Z,GETEXP	;GET EXPONENT
+	BIT	7,H
+	JR	NZ,CON0		;INTEGER OVERFLOW
+	OR	A
+	JR	NZ,CON0		;EXPONENT NON-ZERO
+	CP	B
+	JR	NZ,CON0		;DECIMAL POINT
+	CP	C
+	RET	Z		;INTEGER
+CON0:	SUB	B
+	ADD	A,C
+	LD	C,159
+	CALL	FLOAT
+	RES	7,H		;DITCH IMPLIED 1
+	OR	A
+	RET	Z		;DONE
+	JP	M,CON2		;NEGATIVE EXPONENT
+	CALL	POWR10
+	CALL	FMUL		;SCALE
+	XOR	A
+	RET
+CON2:	CP	-38
+	JR	C,CON3		;CAN'T SCALE IN ONE GO
+	NEG
+	CALL	POWR10
+	CALL	FDIV		;SCALE
+	XOR	A
+	RET
+CON3:	PUSH	AF
+	LD	A,38
+	CALL	POWR10
+	CALL	FDIV
+	POP	AF
+	ADD	A,38
+	JR	CON2
+;
+;GETEXP - Get decimal exponent from string
+;     Inputs: ASCII string at (IX)
+;             (IX points at 'E')
+;             A = initial value
+;    Outputs: A = new exponent
+;             IX updated.
+;   Destroys: A,A',IX,F,F'
+;
+GETEXP:	PUSH	BC		;SAVE REGISTERS
+	LD	B,A		;INITIAL VALUE
+	LD	C,2		;2 DIGITS MAX
+	INC	IX		;BUMP PAST 'E'
+	CALL	SIGNQ
+	EX	AF,AF'		;SAVE EXPONENT SIGN
+GETEX1:	CALL	DIGITQ
+	JR	C,GETEX2
+	LD	A,B		;B=B*10
+	ADD	A,A
+	ADD	A,A
+	ADD	A,B
+	ADD	A,A
+	LD	B,A
+	LD	A,(IX)		;GET BACK DIGIT
+	INC	IX
+	AND	0FH		;MASK UNWANTED BITS
+	ADD	A,B		;ADD IN DIGIT
+	LD	B,A
+	DEC	C
+	JP	P,GETEX1
+	LD	B,100		;FORCE OVERFLOW
+	JR	GETEX1
+GETEX2:	EX	AF,AF'		;RESTORE SIGN
+	CP	'-'
+	LD	A,B
+	POP	BC		;RESTORE
+	RET	NZ
+	NEG			;NEGATE EXPONENT
+	RET
+;
+;NUMBER: Get unsigned integer from string.
+;    Inputs: string at (IX)
+;            C = truncated digit count
+;                (initially zero)
+;            B = total digit count
+;            HLH'L' = initial value
+;   Outputs: HLH'L' = number (binary integer)
+;            A = delimiter.
+;            B, C & IX updated
+;  Destroys: A,B,C,D,E,H,L,B',C',D',E',H',L',IX,F
+;
+NUMBIX:	INC	IX
+NUMBER:	CALL	DIGITQ
+	RET	C
+	INC	B		;INCREMENT DIGIT COUNT
+	INC	IX
+	CALL	X10		;*10 & COPY OLD VALUE
+	JR	C,NUMB1		;OVERFLOW
+	DEC	C		;SEE IF TRUNCATED
+	INC	C
+	JR	NZ,NUMB1	;IMPORTANT!
+	AND	0FH
+	EXX
+	LD	B,0
+	LD	C,A
+	ADD	HL,BC		;ADD IN DIGIT
+	EXX
+	JR	NC,NUMBER
+	INC	HL		;CARRY
+	LD	A,H
+	OR	L
+	JR	NZ,NUMBER
+NUMB1:	INC	C		;TRUNCATION COUNTER
+	CALL	SWAP1		;RESTORE PREVIOUS VALUE
+	JR	NUMBER
+;
+;FIX - Fix number to specified exponent value.
+;    Inputs: HLH'L'C = +ve non-zero number (floated)
+;            A = desired exponent (A>C)
+;   Outputs: HLH'L'C = fixed number (unsigned)
+;            fraction shifted into B'C'
+;            A'F' positive if integer input
+;  Destroys: C,H,L,A',B',C',H',L',F,F'
+;
+FIX:	EX	AF,AF'
+	XOR	A
+	EX	AF,AF'
+	SET	7,H		;IMPLIED 1
+FIX1:	CALL	DIV2
+	CP	C
+	RET	Z
+	JP	NC,FIX1
+	JP	OFLOW
+;
+;SFIX - Convert to integer if necessary.
+;    Input: Variable-type number in HLH'L'C
+;   Output: Integer in HLH'L', C=0
+; Destroys: A,C,H,L,A',B',C',H',L',F,F'
+;
+;NEGATE - Negate HLH'L'
+;    Destroys: H,L,H',L',F
+;
+FIX2:	CALL	SWAP
+	CALL	SFIX
+	CALL	SWAP
+SFIX:	DEC	C
+	INC	C
+	RET	Z		;INTEGER/ZERO
+	BIT	7,H		;SIGN
+	PUSH	AF
+	LD	A,159
+	CALL	FIX
+	POP	AF
+	LD	C,0
+	RET	Z
+NEGATE:	OR	A		;CLEAR CARRY
+	EXX
+NEG0:	PUSH	DE
+	EX	DE,HL
+	LD	HL,0
+	SBC	HL,DE
+	POP	DE
+	EXX
+	PUSH	DE
+	EX	DE,HL
+	LD	HL,0
+	SBC	HL,DE
+	POP	DE
+	RET
+;
+;NEG - Negate HLH'L'B'C'
+;    Also complements A (used in FADD)
+;    Destroys: A,H,L,B',C',H',L',F
+;
+NEG:	EXX
+	CPL
+	PUSH	HL
+	OR	A		;CLEAR CARRY
+	SBC	HL,HL
+	SBC	HL,BC
+	LD	B,H
+	LD	C,L
+	POP	HL
+	JR	NEG0
+;
+;SCALE - Trig scaling.
+;MOD48 - 48-bit floating-point "modulus" (remainder).
+;   Inputs: HLH'L'C unsigned floating-point dividend
+;           DED'E'B'C'B unsigned 48-bit FP divisor
+;  Outputs: HLH'L'C floating point remainder (H7=1)
+;           E = quotient (bit 7 is sticky)
+; Destroys: A,B,C,D,E,H,L,B',C',D',E',H',L',IX,F
+;FLO48 - Float unsigned number (48 bits)
+;    Input/output in HLH'L'B'C'C
+;   Destroys: C,H,L,B',C',H',L',F
+;
+SCALE:	LD	A,150
+	CP	C
+	LD	A,ACLOST
+	JP	C,ERROR		;"Accuracy lost"
+	CALL	PIBY4
+	EXX
+	LD	BC,2169H	;3.141592653589793238
+	EXX
+MOD48:	SET	7,D		;IMPLIED 1
+	SET	7,H
+	LD	A,C
+	LD	C,0		;INIT QUOTIENT
+	LD	IX,0
+	PUSH	IX		;PUT ZERO ON STACK
+	CP	B
+	JR	C,MOD485	;DIVIDEND<DIVISOR
+MOD481:	EXX			;CARRY=0 HERE
+	EX	(SP),HL
+	SBC	HL,BC
+	EX	(SP),HL
+	SBC	HL,DE
+	EXX
+	SBC	HL,DE
+	JR	NC,MOD482	;DIVIDEND>=DIVISOR
+	EXX
+	EX	(SP),HL
+	ADD	HL,BC
+	EX	(SP),HL
+	ADC	HL,DE
+	EXX
+	ADC	HL,DE
+MOD482:	CCF
+	RL	C		;QUOTIENT
+	JR	NC,MOD483
+	SET	7,C		;STICKY BIT
+MOD483:	DEC	A
+	CP	B
+	JR	C,MOD484	;DIVIDEND<DIVISOR
+	EX	(SP),HL
+	ADD	HL,HL		;DIVIDEND * 2
+	EX	(SP),HL
+	EXX
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	JR	NC,MOD481	;AGAIN
+	OR	A
+	EXX
+	EX	(SP),HL
+	SBC	HL,BC		;OVERFLOW, SO SUBTRACT
+	EX	(SP),HL
+	SBC	HL,DE
+	EXX
+	SBC	HL,DE
+	OR	A
+	JR	MOD482
+;
+MOD484:	INC	A
+MOD485:	LD	E,C		;QUOTIENT
+	LD	C,A		;REMAINDER EXPONENT
+	EXX
+	POP	BC
+	EXX
+FLO48:	BIT	7,H
+	RET	NZ
+	EXX
+	SLA	C
+	RL	B
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	DEC	C
+	JP	NZ,FLO48
+	RET
+;
+;Float unsigned number
+;    Input/output in HLH'L'C
+;   Destroys: C,H,L,H',L',F
+;
+FLOAT:	BIT	7,H
+	RET	NZ
+	EXX			;SAME AS "X2"
+	ADD	HL,HL		;TIME-CRITICAL
+	EXX			;REGION
+	ADC	HL,HL		;(BENCHMARKS)
+	DEC	C
+	JP	NZ,FLOAT
+	RET
+;
+;SFLOAT - Convert to floating-point if necessary.
+;    Input: Variable-type number in HLH'L'C
+;    Output: Floating-point in HLH'L'C
+;    Destroys: A,C,H,L,H',L',F
+;
+FLOATA:	EX	AF,AF'
+	ADD	A,(RTABLE-DTABLE)/2
+	EX	AF,AF'
+FLOAT2:	CALL	SWAP
+	CALL	SFLOAT
+	CALL	SWAP
+SFLOAT:	DEC	C
+	INC	C
+	RET	NZ		;ALREADY FLOATING-POINT
+	CALL	TEST
+	RET	Z		;ZERO
+	LD	A,H
+	OR	A
+	CALL	M,NEGATE
+	LD	C,159
+	CALL	FLOAT
+	OR	A
+	RET	M		;NEGATIVE
+	RES	7,H
+	RET
+;
+;ROUND UP
+;Return with carry set if 32-bit overflow
+;   Destroys: H,L,B',C',H',L',F
+;
+ADD1:	EXX
+	LD	BC,1
+	ADD	HL,BC
+	EXX
+	RET	NC
+	PUSH	BC
+	LD	BC,1
+	ADD	HL,BC
+	POP	BC
+	RET
+;
+;ODD - Add one if even, leave alone if odd.
+; (Used to perform unbiassed rounding, i.e.
+;  number is rounded up half the time)
+;    Destroys: L',F (carry cleared)
+;
+ODD:	OR	A		;CLEAR CARRY
+	EXX
+	SET	0,L		;MAKE ODD
+	EXX
+	RET
+;
+;SWAP - Swap arguments.
+;    Exchanges DE,HL D'E',H'L' and B,C
+;    Destroys: A,B,C,D,E,H,L,D',E',H',L'
+;SWAP1 - Swap DEHL with D'E'H'L'
+;    Destroys: D,E,H,L,D',E',H',L'
+;
+SWAP:	LD	A,C
+	LD	C,B
+	LD	B,A
+SWAP1:	EX	DE,HL
+	EXX
+	EX	DE,HL
+	EXX
+	RET
+;
+;DIV2 - destroys C,H,L,A',B',C',H',L',F,F'
+;INCC - destroys C,F
+;OFLOW
+;
+DIV2:	CALL	D2
+	EXX
+	RR	B
+	RR	C
+	EX	AF,AF'
+	OR	B
+	EX	AF,AF'
+	EXX
+INCC:	INC	C
+	RET	NZ
+OFLOW:	LD	A,TOOBIG
+	JP	ERROR		;"Too big"
+;
+;FTEST - Test for zero & sign
+;    Output: A=0 if zero, A=&40 if +ve, A=&C0 if -ve
+;
+FTEST:	CALL	TEST
+	RET	Z
+	LD	A,H
+	AND	10000000B
+	OR	01000000B
+	RET
+;
+;TEST - Test HLH'L' for zero.
+;    Output: Z-flag set & A=0 if HLH'L'=0
+;    Destroys: A,F
+;
+TEST:	LD	A,H
+	OR	L
+	EXX
+	OR	H
+	OR	L
+	EXX
+	RET
+;
+;FCOMP - Compare two numbers
+;    Output: A=0 if equal, A=&40 if L>R, A=&C0 if L<R
+;
+FCOMP:	LD	A,B
+	OR	C		;Both integer?
+	JR	NZ,FCOMP1
+	CALL	ICP
+FCOMP0:	LD	A,0
+	RET	Z		;Equal
+	LD	A,80H
+	RRA
+	RET
+;
+FCOMP1:	CALL	FLOAT2		;Float both
+	CALL	FCP
+	JR	FCOMP0
+;
+;Integer and floating point compare.
+;Sets carry & zero flags according to HLH'L'C-DED'E'B
+;Result pre-set to FALSE
+;ICP1, FCP1 destroy A,F
+;
+;ZERO - Return zero.
+; Destroys: A,C,H,L,H',L'
+;
+ICP:	CALL	ICP1
+ZERO:	LD	A,0
+	EXX
+	LD	H,A
+	LD	L,A
+	EXX
+	LD	H,A
+	LD	L,A
+	LD	C,A
+	RET
+;
+FCP:	CALL	FCP1
+	JR	ZERO		;PRESET FALSE
+;
+FCP0:	LD	A,C
+	CP	B		;COMPARE EXPONENTS
+	RET	NZ
+ICP0:	SBC	HL,DE		;COMP MANTISSA MSB
+	ADD	HL,DE
+	RET	NZ
+	EXX
+	SBC	HL,DE		;COMP MANTISSA LSB
+	ADD	HL,DE
+	EXX
+	RET
+;
+FCP1:	LD	A,H
+	XOR	D
+	LD	A,H
+	RLA
+	RET	M
+	JR	NC,FCP0
+	CALL	FCP0
+	RET	Z		;** V0.1 BUG FIX
+	CCF
+	RET
+;
+ICP1:	LD	A,H
+	XOR	D
+	JP	P,ICP0
+	LD	A,H
+	RLA
+	RET
+;
+;ADD - Integer add.
+;Carry, sign & zero flags valid on exit
+;    Destroys: H,L,H',L',F
+;
+X10B:	DEC	B
+	INC	C
+X5:	CALL	COPY0
+	CALL	D2C
+	CALL	D2C
+	EX	AF,AF'		;SAVE CARRY
+ADD:	EXX
+	ADD	HL,DE
+	EXX
+	ADC	HL,DE
+	RET
+;
+;SUB - Integer subtract.
+;Carry, sign & zero flags valid on exit
+;    Destroys: H,L,H',L',F
+;
+SUB:	EXX
+	OR	A
+	SBC	HL,DE
+	EXX
+	SBC	HL,DE
+	RET
+;
+;X10 - unsigned integer * 10
+;   Inputs: HLH'L' initial value
+;  Outputs: DED'E' = initial HLH'L'
+;           Carry bit set if overflow
+;           If carry not set HLH'L'=result
+; Destroys: D,E,H,L,D',E',H',L',F
+;X2 - Multiply HLH'L' by 2 as 32-bit integer.
+;    Carry set if MSB=1 before shift.
+;    Sign set if MSB=1 after shift.
+;    Destroys: H,L,H',L',F
+;
+X10:	CALL	COPY0		;DED'E'=HLH'L'
+	CALL	X2
+	RET	C		;TOO BIG
+	CALL	X2
+	RET	C
+	CALL	ADD
+	RET	C
+X2:	EXX
+	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	RET
+;
+;D2 - Divide HLH'L' by 2 as 32-bit integer.
+;    Carry set if LSB=1 before shift.
+;    Destroys: H,L,H',L',F
+;
+D2C:	INC	C
+D2:	SRL	H
+	RR	L
+	EXX
+	RR	H
+	RR	L
+	EXX
+	RET
+;
+;COPY - COPY HLH'L'C INTO DED'E'B
+;  Destroys: B,C,D,E,H,L,D',E',H',L'
+;
+COPY:	LD	B,C
+COPY0:	LD	D,H
+	LD	E,L
+	EXX
+	LD	D,H
+	LD	E,L
+	EXX
+	RET
+;
+;SQUARE - PUSH X*X
+;PUSH5 - PUSH HLH'L'C ONTO STACK.
+;  Destroys: SP,IX
+;
+SQUARE:	CALL	COPY
+	CALL	FMUL
+PUSH5:	POP	IX		;RETURN ADDRESS
+	PUSH	BC
+	PUSH	HL
+	EXX
+	PUSH	HL
+	EXX
+	JP	(IX)		;"RETURN"
+;
+;POP5 - POP DED'E'B OFF STACK.
+;  Destroys: A,B,D,E,D',E',SP,IX
+;
+POP5:	POP	IX		;RETURN ADDRESS
+	EXX
+	POP	DE
+	EXX
+	POP	DE
+	LD	A,C
+	POP	BC
+	LD	B,C
+	LD	C,A
+	JP	(IX)		;"RETURN"
+;
+;RATIO - Calculate (X-1)/(X+1)
+;    Inputs: X in HLH'L'C
+;   Outputs: (X-1)/(X+1) in HLH'L'C
+;  Destroys: Everything except IY,SP,I
+;
+RATIO:	CALL	PUSH5		;SAVE X
+	CALL	DONE
+	CALL	FADD
+	CALL	POP5		;RESTORE X
+	CALL	PUSH5		;SAVE X+1
+	CALL	SWAP
+	CALL	DONE
+	CALL	FSUB
+	CALL	POP5		;RESTORE X+1
+	JP	FDIV
+;
+;POLY - Evaluate a polynomial.
+;    Inputs: X in HLH'L'C and also stored at (SP+2)
+;            Polynomial coefficients follow call.
+;   Outputs: Result in HLH'L'C
+;  Destroys: Everything except IY,SP,I
+;Routine terminates on finding a coefficient >=1.
+;Note: The last coefficient is EXECUTED on return
+;      so must contain only innocuous bytes!
+;
+POLY:	LD	IX,2
+	ADD	IX,SP
+	EX	(SP),IX
+	CALL	DLOAD5		;FIRST COEFFICIENT
+POLY1:	CALL	FMUL
+	LD	DE,5
+	ADD	IX,DE
+	CALL	DLOAD5		;NEXT COEFFICIENT
+	EX	(SP),IX
+	INC	B
+	DEC	B		;TEST
+	JP	M,FADD
+	CALL	FADD
+	CALL	DLOAD5		;X
+	EX	(SP),IX
+	JR	POLY1
+;
+;POWR10 - Calculate power of ten.
+;    Inputs: A=power of 10 required (A<128)
+;            A=binary exponent to be exceeded (A>=128)
+;   Outputs: DED'E'B = result
+;            A = actual power of ten returned
+;  Destroys: A,B,D,E,A',D',E',F,F'
+;
+POWR10:	INC	A
+	EX	AF,AF'
+	PUSH	HL
+	EXX
+	PUSH	HL
+	EXX
+	CALL	DONE
+	CALL	SWAP
+	XOR	A
+POWR11:	EX	AF,AF'
+	DEC	A
+	JR	Z,POWR14	;EXIT TYPE 1
+	JP	P,POWR13
+	CP	C
+	JR	C,POWR14	;EXIT TYPE 2
+	INC	A
+POWR13:	EX	AF,AF'
+	INC	A
+	SET	7,H
+	CALL	X5
+	JR	NC,POWR12
+	EX	AF,AF'
+	CALL	D2C
+	EX	AF,AF'
+POWR12:	EX	AF,AF'
+	CALL	C,ADD1		;ROUND UP
+	INC	C
+	JP	M,POWR11
+	JP	OFLOW
+POWR14:	CALL	SWAP
+	RES	7,D
+	EXX
+	POP	HL
+	EXX
+	POP	HL
+	EX	AF,AF'
+	RET
+;
+;DIVA, DIVB - DIVISION PRIMITIVE.
+;    Function: D'E'DE = H'L'HLD'E'DE / B'C'BC
+;              Remainder in H'L'HL
+;    Inputs: A = loop counter (normally -32)
+;    Destroys: A,D,E,H,L,D',E',H',L',F
+;
+DIVA:	OR	A		;CLEAR CARRY
+DIV0:	SBC	HL,BC		;DIVIDEND-DIVISOR
+	EXX
+	SBC	HL,BC
+	EXX
+	JR	NC,DIV1
+	ADD	HL,BC		;DIVIDEND+DIVISOR
+	EXX
+	ADC	HL,BC
+	EXX
+DIV1:	CCF
+DIVC:	RL	E		;SHIFT RESULT INTO DE
+	RL	D
+	EXX
+	RL	E
+	RL	D
+	EXX
+	INC	A
+	RET	P
+DIVB:	ADC	HL,HL		;DIVIDEND*2
+	EXX
+	ADC	HL,HL
+	EXX
+	JR	NC,DIV0
+	OR	A
+	SBC	HL,BC		;DIVIDEND-DIVISOR
+	EXX
+	SBC	HL,BC
+	EXX
+	SCF
+	JP	DIVC
+;
+;MULA, MULB - MULTIPLICATION PRIMITIVE.
+;    Function: H'L'HLD'E'DE = B'C'BC * D'E'DE
+;    Inputs: A = loop counter (usually -32)
+;            H'L'HL = 0
+;    Destroys: D,E,H,L,D',E',H',L',A,F
+;
+MULA:	OR	A		;CLEAR CARRY
+MUL0:	EXX
+	RR	D		;MULTIPLIER/2
+	RR	E
+	EXX
+	RR	D
+	RR	E
+	JR	NC,MUL1
+	ADD	HL,BC		;ADD IN MULTIPLICAND
+	EXX
+	ADC	HL,BC
+	EXX
+MUL1:	INC	A
+	RET	P
+MULB:	EXX
+	RR	H		;PRODUCT/2
+	RR	L
+	EXX
+	RR	H
+	RR	L
+	JP	MUL0
+;
+;SQRA, SQRB - SQUARE ROOT PRIMITIVES
+;    Function: B'C'BC = SQR (D'E'DE)
+;    Inputs: A = loop counter (normally -31)
+;            B'C'BCH'L'HL initialised to 0
+;  Destroys: A,B,C,D,E,H,L,B',C',D',E',H',L',F
+;
+SQR1:	SBC	HL,BC
+	EXX
+	SBC	HL,BC
+	EXX
+	INC	C
+	JR	NC,SQR2
+	DEC	C
+	ADD	HL,BC
+	EXX
+	ADC	HL,BC
+	EXX
+	DEC	C
+SQR2:	INC	A
+	RET	P
+SQRA:	SLA	C
+	RL	B
+	EXX
+	RL	C
+	RL	B
+	EXX
+	INC	C
+	SLA	E
+	RL	D
+	EXX
+	RL	E
+	RL	D
+	EXX
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	EXX
+	SLA	E
+	RL	D
+	EXX
+	RL	E
+	RL	D
+	EXX
+	ADC	HL,HL
+	EXX
+	ADC	HL,HL
+	EXX
+	JP	NC,SQR1
+SQR3:	OR	A
+	SBC	HL,BC
+	EXX
+	SBC	HL,BC
+	EXX
+	INC	C
+	JP	SQR2
+;
+SQRB:	ADD	HL,HL
+	EXX
+	ADC	HL,HL
+	EXX
+	JR	C,SQR3
+	INC	A
+	INC	C
+	SBC	HL,BC
+	EXX
+	SBC	HL,BC
+	EXX
+	RET	NC
+	ADD	HL,BC
+	EXX
+	ADC	HL,BC
+	EXX
+	DEC	C
+	RET
+;
+DIGITQ:	LD	A,(IX)
+	CP	'9'+1
+	CCF
+	RET	C
+	CP	'0'
+	RET
+;
+SIGNQ:	LD	A,(IX)
+	INC	IX
+	CP	' '
+	JR	Z,SIGNQ
+	CP	'+'
+	RET	Z
+	CP	'-'
+	RET	Z
+	DEC	IX
+	RET
+;
+ABS2:	EX	AF,AF'
+	BIT	7,H
+	CALL	NZ,NEGATE	;MAKE ARGUMENTS +VE
+	CALL	SWAP
+	BIT	7,H
+	CALL	NZ,NEGATE
+	LD	B,H
+	LD	C,L
+	LD	HL,0
+	EXX
+	LD	B,H
+	LD	C,L
+	LD	HL,0
+	RET
+;
+	END
diff --git a/Source/Apps/Build.cmd b/Source/Apps/Build.cmd
index 0776541e..92bcb2a1 100644
--- a/Source/Apps/Build.cmd
+++ b/Source/Apps/Build.cmd
@@ -2,47 +2,37 @@
 setlocal
 
 set TOOLS=..\..\Tools
-set APPBIN=..\..\Binary\Apps
 set PATH=%TOOLS%\tasm32;%TOOLS%\zxcc;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 set CPMDIR80=%TOOLS%/cpm/
 
-call :asm syscopy || exit /b
-call :asm assign || exit /b
-call :asm format || exit /b
-call :asm talk || exit /b
-call :asm mode || exit /b
-call :asm rtc || exit /b
-call :asm timer || exit /b
-call :asm rtchb || exit /b
+call :build syscopy || exit /b
+call :build assign || exit /b
+call :build format || exit /b
+call :build talk || exit /b
+call :build mode || exit /b
+call :build rtc || exit /b
+call :build timer || exit /b
+call :build sysgen || exit /b
+call :build XM || exit /b
+call :build FDU || exit /b
+call :build Tune || exit /b
+call :build FAT || exit /b
+call :build Test || exit /b
+call :build ZMP || exit /b
+call :build ZMD || exit /b
+call :build Dev || exit /b
+call :build VGM || exit /b
+call :build cpuspd || exit /b
+call :build reboot || exit /b
+call :build Survey || exit /b
+call :build HTalk || exit /b
+call :build BBCBASIC || exit /b
+call :build copysl || exit /b
 
-zxcc Z80ASM -SYSGEN/F || exit /b
-
-pushd XM && call Build || exit /b & popd
-pushd FDU && call Build || exit /b & popd
-pushd Tune && call Build || exit /b & popd
-pushd FAT && call Build || exit /b & popd
-pushd Test && call Build || exit /b & popd
-pushd ZMP && call Build || exit /b & popd
-pushd ZMD && call Build || exit /b & popd
-pushd Dev && call Build || exit /b & popd
-pushd VGM && call Build || exit /b & popd
-pushd cpuspd && call Build || exit /b & popd
-pushd Survey && call Build || exit /b & popd
-pushd HTalk && call Build || exit /b & popd
-
-copy *.com %APPBIN%\ || exit /b
-
-goto :eof
-
-:asm
-echo.
-echo Building %1...
-tasm -t80 -g3 -fFF %1.asm %1.com %1.lst || exit /b
 goto :eof
 
-:asm180
-echo.
-echo Building %1...
-tasm -t180 -g3 -fFF %1.asm %1.com %1.lst || exit /b
+:build
+echo Building %1
+pushd %1 && call Build || exit /b & popd
 goto :eof
diff --git a/Source/Apps/Clean.cmd b/Source/Apps/Clean.cmd
index 06057f1f..aee7b56c 100644
--- a/Source/Apps/Clean.cmd
+++ b/Source/Apps/Clean.cmd
@@ -1,21 +1,32 @@
 @echo off
 setlocal
 
-if exist *.bin del *.bin
-if exist *.com del *.com
-if exist *.lst del *.lst
-if exist *.hex del *.hex
-if exist *.prn del *.prn
+call :clean syscopy || exit /b
+call :clean assign || exit /b
+call :clean format || exit /b
+call :clean talk || exit /b
+call :clean mode || exit /b
+call :clean rtc || exit /b
+call :clean timer || exit /b
+call :clean sysgen || exit /b
+call :clean XM || exit /b
+call :clean FDU || exit /b
+call :clean Tune || exit /b
+call :clean FAT || exit /b
+call :clean Test || exit /b
+call :clean ZMP || exit /b
+call :clean ZMD || exit /b
+call :clean Dev || exit /b
+call :clean VGM || exit /b
+call :clean cpuspd || exit /b
+call :clean reboot || exit /b
+call :clean Survey || exit /b
+call :clean HTalk || exit /b
+call :clean BBCBASIC || exit /b
+call :clean copysl || exit /b
 
-pushd XM && call Clean || exit /b 1 & popd
-pushd FDU && call Clean || exit /b 1 & popd
-pushd Tune && call Clean || exit /b 1 & popd
-pushd FAT && call Clean || exit /b 1 & popd
-pushd Test && call Clean || exit /b 1 & popd
-pushd ZMP && call Clean || exit /b 1 & popd
-pushd ZMD && call Clean || exit /b 1 & popd
-pushd Dev && call Clean || exit /b 1 & popd
-pushd VGM && call Clean || exit /b 1 & popd
-pushd cpuspd && call Clean || exit /b 1 & popd
-pushd Survey && call Clean || exit /b 1 & popd
-pushd HTalk && call Clean || exit /b 1 & popd
+goto :eof
+
+:clean
+pushd %1 && call Clean || exit /b & popd
+goto :eof
diff --git a/Source/Apps/Makefile b/Source/Apps/Makefile
index a3ae67fe..f6abf7b2 100644
--- a/Source/Apps/Makefile
+++ b/Source/Apps/Makefile
@@ -1,9 +1,5 @@
-OBJECTS = sysgen.com syscopy.com assign.com format.com talk.com \
-	mode.com rtc.com timer.com rtchb.com
-SUBDIRS = HTalk XM FDU FAT Tune Test ZMP ZMD Dev VGM cpuspd Survey
-DEST = ../../Binary/Apps
+SUBDIRS = HTalk XM FDU FAT Tune Test ZMP ZMD Dev VGM cpuspd reboot Survey BBCBASIC copysl \
+	sysgen syscopy assign format talk mode rtc timer
 TOOLS =../../Tools
 
 include $(TOOLS)/Makefile.inc
-
-USETASM = 1
diff --git a/Source/Apps/Test/2piotst/Build.cmd b/Source/Apps/Test/2piotst/Build.cmd
index 8d719eab..004b4bc9 100644
--- a/Source/Apps/Test/2piotst/Build.cmd
+++ b/Source/Apps/Test/2piotst/Build.cmd
@@ -1,10 +1,8 @@
 @echo off
 setlocal
 
-set TOOLS=..\..\..\..\Tools
-
+set TOOLS=../../../../Tools
 set PATH=%TOOLS%\zxcc;%PATH%
-
 set CPMDIR80=%TOOLS%/cpm/
 
 zxcc M80 -=2piotst/l || exit /b
diff --git a/Source/Apps/Test/Build.cmd b/Source/Apps/Test/Build.cmd
index e56d13b3..55688dfa 100644
--- a/Source/Apps/Test/Build.cmd
+++ b/Source/Apps/Test/Build.cmd
@@ -1,41 +1,31 @@
 @echo off
 setlocal
 
-set TOOLS=../../../Tools
-set APPBIN=..\..\Binary\Apps
-
+set TOOLS=..\..\..\Tools
 set PATH=%TOOLS%\tasm32;%TOOLS%\zxcc;%PATH%
-
 set TASMTABS=%TOOLS%\tasm32
-
 set CPMDIR80=%TOOLS%/cpm/
 
-pushd DMAmon && call Build || exit /b & popd
-pushd tstdskng && call Build || exit /b & popd
-pushd inttest && call Build || exit /b & popd
-pushd ppidetst && call Build || exit /b & popd
-pushd ramtest && call Build || exit /b & popd
-pushd I2C && call Build || exit /b & popd
-pushd rzsz && call Build || exit /b & popd
-pushd vdctest && call Build || exit /b & popd
-pushd kbdtest && call Build || exit /b & popd
-pushd ps2info && call Build || exit /b & popd
-pushd 2piotst && call Build || exit /b & popd
-pushd piomon && call Build || exit /b & popd
-pushd banktest && call Build || exit /b & popd
-pushd portscan && call Build || exit /b & popd
-pushd sound && call Build || exit /b & popd
-
-goto :eof
+call :build DMAmon || exit /b
+call :build tstdskng || exit /b
+call :build inttest || exit /b
+call :build ppidetst || exit /b
+call :build ramtest || exit /b
+call :build I2C || exit /b
+call :build rzsz || exit /b
+call :build vdctest || exit /b
+call :build kbdtest || exit /b
+call :build ps2info || exit /b
+call :build 2piotst || exit /b
+call :build piomon || exit /b
+call :build banktest || exit /b
+call :build portscan || exit /b
+call :build sound || exit /b
+call :build testh8p || exit /b
 
-:asm
-echo.
-echo Building %1...
-tasm -t80 -g3 -fFF %1.asm %1.com %1.lst || exit /b
 goto :eof
 
-:asm180
-echo.
-echo Building %1...
-tasm -t180 -g3 -fFF %1.asm %1.com %1.lst || exit /b
+:build
+echo Building %1
+pushd %1 && call Build || exit /b & popd
 goto :eof
diff --git a/Source/Apps/Test/Clean.cmd b/Source/Apps/Test/Clean.cmd
index 4e81e284..733b934e 100644
--- a/Source/Apps/Test/Clean.cmd
+++ b/Source/Apps/Test/Clean.cmd
@@ -22,3 +22,4 @@ pushd piomon && call Clean || exit /b 1 & popd
 pushd banktest && call Clean || exit /b 1 & popd
 pushd portscan && call Clean || exit /b 1 & popd
 pushd sound && call Clean || exit /b 1 & popd
+pushd testh8p && call Clean || exit /b 1 & popd
diff --git a/Source/Apps/Test/I2C/Build.cmd b/Source/Apps/Test/I2C/Build.cmd
index 6821c4e3..1c6ad0e5 100644
--- a/Source/Apps/Test/I2C/Build.cmd
+++ b/Source/Apps/Test/I2C/Build.cmd
@@ -5,9 +5,9 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF i2cscan.asm i2cscan.com i2cscan.lst || exit /b
-tasm -t180 -g3 -fFF rtcds7.asm rtcds7.com rtcds7.lst || exit /b
-tasm -t180 -g3 -fFF i2clcd.asm i2clcd.com i2clcd.lst || exit /b
+tasm -t80 -g3 -fFF i2cscan.asm i2cscan.com i2cscan.lst || exit /b
+tasm -t80 -g3 -fFF rtcds7.asm rtcds7.com rtcds7.lst || exit /b
+tasm -t80 -g3 -fFF i2clcd.asm i2clcd.com i2clcd.lst || exit /b
 tasm -t80 -g3 -ff srom.asm srom.com srom.lst || exit /b
 
 copy /Y i2c*.com ..\..\..\..\Binary\Apps\Test\ || exit /b
diff --git a/Source/Apps/Test/Makefile b/Source/Apps/Test/Makefile
index 7d70c01b..8697fdcf 100644
--- a/Source/Apps/Test/Makefile
+++ b/Source/Apps/Test/Makefile
@@ -1,6 +1,6 @@
-OBJECTS =
-SUBDIRS = DMAmon I2C inttest ppidetst ramtest tstdskng rzsz vdctest kbdtest ps2info 2piotst piomon banktest portscan sound
-DEST = ../../../Binary/Apps/Test
+# OBJECTS =
+SUBDIRS = DMAmon I2C inttest ppidetst ramtest tstdskng rzsz vdctest kbdtest ps2info 2piotst piomon banktest portscan sound testh8p
+# DEST = ../../../Binary/Apps/Test
 TOOLS =../../../Tools
 
 include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/Test/inttest/Build.cmd b/Source/Apps/Test/inttest/Build.cmd
index e26d9b73..e0a3ff6d 100644
--- a/Source/Apps/Test/inttest/Build.cmd
+++ b/Source/Apps/Test/inttest/Build.cmd
@@ -5,7 +5,8 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF inttest.asm inttest.com inttest.lst || exit /b
+tasm -t80 -g3 -fFF inttest.asm inttest.com inttest.lst || exit /b
 
 copy /Y inttest.com ..\..\..\..\Binary\Apps\Test\ || exit /b
+copy /Y inttest.doc ..\..\..\..\Binary\Apps\Test\ || exit /b
 
diff --git a/Source/Apps/Test/inttest/Makefile b/Source/Apps/Test/inttest/Makefile
index 04222fbd..25570390 100644
--- a/Source/Apps/Test/inttest/Makefile
+++ b/Source/Apps/Test/inttest/Makefile
@@ -1,5 +1,7 @@
 OBJECTS = inttest.com
+DOCS = inttest.doc
 DEST = ../../../../Binary/Apps/Test
+DOCDEST = ../../../../Binary/Apps/Test
 TOOLS =../../../../Tools
 
 USETASM=1
diff --git a/Source/Apps/Test/inttest/inttest.asm b/Source/Apps/Test/inttest/inttest.asm
index d751a700..9781f207 100644
--- a/Source/Apps/Test/inttest/inttest.asm
+++ b/Source/Apps/Test/inttest/inttest.asm
@@ -176,6 +176,8 @@ estidx:
 	jr	z,hkim
 	cp	2
 	jr	z,hkim
+	cp	3
+	jr	z,hkim
 	ret
 ;
 ; Setup interrupt handler
@@ -545,8 +547,8 @@ stack	.equ	$		; stack top
 ;
 ; Messages
 ;
-msgban	.db	"INTTEST v1.2, 15-May-2019",13,10
-	.db	"Copyright (C) 2019, Wayne Warthen, GNU GPL v3",0
+msgban	.db	"INTTEST v1.3, 16-May-2024",13,10
+	.db	"Copyright (C) 2024, Wayne Warthen, GNU GPL v3",0
 msginfo	.db	"Interrupt information request...",0
 msgmode	.db	"  Active interrupt mode: ",0
 msgcnt	.db	"  Vector entries in use: ",0
diff --git a/Source/Apps/Test/inttest/inttest.doc b/Source/Apps/Test/inttest/inttest.doc
new file mode 100644
index 00000000..686c140a
--- /dev/null
+++ b/Source/Apps/Test/inttest/inttest.doc
@@ -0,0 +1,44 @@
+INTTEST
+=======
+
+RomWBW includes an API allowing applications to "hook" interrupts.
+The `INTTEST` utility allows you to test this functionality.
+
+
+** Syntax **
+
+`INTTEST`
+
+
+** Usage **
+
+`INTTEST` is an interactive application.  At startup, it will display
+a list of the interrupt vector slots in your system along with the
+current vector address for each of them.
+
+It then prompts you to enter the slot number (in hex) of a vector to
+hook.  After entering this, the application will watch the hooked
+vector and countdown from 0xFF to 0x00 as interrupts are noted.
+
+When the counter reaches 0x00, the interrupt is unhooked and the
+application terminates.  The application can also be terminated by
+pressing <esc>.
+
+
+** Notes **
+
+If your system is running without interrupts active, the application
+will terminate immediately.
+
+All slots have vectors even if the corresponding interrupt is not
+doing anything.  In this case, the vector is pointing to the "bad
+interrupt" handler.
+
+If you hook a vector that is not receiving any interrupts, the
+down-counter will not do anything.
+
+
+** Etymology* *
+
+The `INTTEST` command is an original product and the source code is
+provided in the RomWBW distribution.
diff --git a/Source/Apps/Test/kbdtest/Build.cmd b/Source/Apps/Test/kbdtest/Build.cmd
index 5ae6b746..283ad2fa 100644
--- a/Source/Apps/Test/kbdtest/Build.cmd
+++ b/Source/Apps/Test/kbdtest/Build.cmd
@@ -5,7 +5,7 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF kbdtest.asm kbdtest.com kbdtest.lst || exit /b
+tasm -t80 -g3 -fFF kbdtest.asm kbdtest.com kbdtest.lst || exit /b
 
 copy /Y kbdtest.com ..\..\..\..\Binary\Apps\Test\ || exit /b
 
diff --git a/Source/Apps/Test/piomon/Build.cmd b/Source/Apps/Test/piomon/Build.cmd
index f0e405e1..a648d875 100644
--- a/Source/Apps/Test/piomon/Build.cmd
+++ b/Source/Apps/Test/piomon/Build.cmd
@@ -5,6 +5,6 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF piomon.asm piomon.com piomon.lst || exit /b
+tasm -t80 -g3 -fFF piomon.asm piomon.com piomon.lst || exit /b
 
 copy /Y piomon.com ..\..\..\..\Binary\Apps\Test\ || exit /b
diff --git a/Source/Apps/Test/ppidetst/Build.cmd b/Source/Apps/Test/ppidetst/Build.cmd
index 5b7becb0..3367763e 100644
--- a/Source/Apps/Test/ppidetst/Build.cmd
+++ b/Source/Apps/Test/ppidetst/Build.cmd
@@ -5,7 +5,7 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF ppidetst.asm ppidetst.com ppidetst.lst || exit /b
+tasm -t80 -g3 -fFF ppidetst.asm ppidetst.com ppidetst.lst || exit /b
 
 copy /Y ppidetst.com ..\..\..\..\Binary\Apps\Test\ || exit /b
 
diff --git a/Source/Apps/Test/ps2info/Build.cmd b/Source/Apps/Test/ps2info/Build.cmd
index 965883ce..9753c099 100644
--- a/Source/Apps/Test/ps2info/Build.cmd
+++ b/Source/Apps/Test/ps2info/Build.cmd
@@ -5,6 +5,6 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF ps2info.asm ps2info.com ps2info.lst || exit /b
+tasm -t80 -g3 -fFF ps2info.asm ps2info.com ps2info.lst || exit /b
 
 copy /Y ps2info.com ..\..\..\..\Binary\Apps\Test\ || exit /b
diff --git a/Source/Apps/Test/ps2info/ps2info.asm b/Source/Apps/Test/ps2info/ps2info.asm
index 2acbf282..22a6ea7d 100644
--- a/Source/Apps/Test/ps2info/ps2info.asm
+++ b/Source/Apps/Test/ps2info/ps2info.asm
@@ -11,6 +11,7 @@
 ; WBW 2022-04-01: Add menu for test functions
 ; WBW 2022-04-02: Fix prtchr register saving/recovery
 ; WBW 2023-10-19: Add support for Duodyne
+; WBW 2024-06-10: Add support for RC2014
 ;
 ;=======================================================================
 ;
@@ -25,6 +26,10 @@ iodat_rph	.equ	$8C	; PS/2 controller data port address
 ; Duodyne:
 iocmd_duo	.equ	$4D	; PS/2 controller command port address
 iodat_duo	.equ	$4C	; PS/2 controller data port address
+; RC2014 (EP/Sally)
+iocmd_rc	.equ	$64	; PS/2 controller command port address
+iodat_rc	.equ	$60	; PS/2 controller data port address
+
 ;
 cpumhz	.equ	8	; for time delay calculations (not critical)
 ;
@@ -87,6 +92,8 @@ setup1:
 	jr	z,setup_rph
 	cp	'3'			; Duodyne
 	jr	z,setup_duo
+	cp	'4'			; RC2014 EP/Sally
+	jr	z,setup_rc
 	cp	'X'
 	jr	z,exit
 	jr	setup
@@ -115,6 +122,14 @@ setup_duo:
 	ld	de,str_duo
 	jr	setup2
 ;
+setup_rc:
+	ld	a,iocmd_rc
+	ld	(iocmd),a
+	ld	a,iodat_rc
+	ld	(iodat),a
+	ld	de,str_rc
+	jr	setup2
+;
 setup2:
 	call	prtstr
 	call	crlf2
@@ -1437,16 +1452,18 @@ delay1:
 ; Constants
 ;=======================================================================
 ;
-str_banner		.db	"PS/2 Keyboard/Mouse Information v0.8, 6-Nov-2023",0
+str_banner		.db	"PS/2 Keyboard/Mouse Information v0.9, 10-Jun-2024",0
 str_hwmenu		.db	"PS/2 Controller Port Options:\r\n\r\n"
 			.db	"  1 - Nhyodyne\r\n"
 			.db	"  2 - Rhyophyre\r\n"
 			.db	"  3 - Duodyne\r\n"
+			.db	"  4 - RC2014\r\n"
 			.db	"  X - Exit Application\r\n"
 			.db	"\r\nSelection? ",0
 str_mbc			.db	"Nhyodyne",0
 str_rph			.db	"Rhyophyre",0
 str_duo			.db	"Duodyne",0
+str_rc			.db	"RC2014 (Saly)",0
 str_menu		.db	"PS/2 Testing Options:\r\n\r\n"
 			.db	"  C - Test PS/2 Controller\r\n"
 			.db	"  K - Test PS/2 Keyboard\r\n"
diff --git a/Source/Apps/Test/ramtest/Makefile b/Source/Apps/Test/ramtest/Makefile
index 3c5e6515..311b3bdc 100644
--- a/Source/Apps/Test/ramtest/Makefile
+++ b/Source/Apps/Test/ramtest/Makefile
@@ -2,7 +2,7 @@ OBJECTS = ramtest.com
 DEST = ../../../../Binary/Apps/Test
 DOCDEST = ../../../../Doc
 TOOLS = ../../../../Tools
-OTHERS = loader.bin dbgmon.bin
+OTHERS = *.bin
 include $(TOOLS)/Makefile.inc
 
 ramtest.com: loader.bin dbgmon.bin
diff --git a/Source/Apps/Test/testh8p/Build.cmd b/Source/Apps/Test/testh8p/Build.cmd
new file mode 100644
index 00000000..d22386d9
--- /dev/null
+++ b/Source/Apps/Test/testh8p/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF testh8p.asm testh8p.com testh8p.lst || exit /b
+
+copy /Y testh8p.com ..\..\..\..\Binary\Apps\Test\ || exit /b
diff --git a/Source/Apps/Test/testh8p/Clean.cmd b/Source/Apps/Test/testh8p/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/Test/testh8p/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/Test/testh8p/Makefile b/Source/Apps/Test/testh8p/Makefile
new file mode 100644
index 00000000..d8e7dd1d
--- /dev/null
+++ b/Source/Apps/Test/testh8p/Makefile
@@ -0,0 +1,9 @@
+OBJECTS = testh8p.com
+# DOCS = testh8p.doc
+DEST = ../../../../Binary/Apps/Test
+DOCDEST = ../../../../Binary/Apps/Test
+TOOLS =../../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/Test/testh8p/testh8p.asm b/Source/Apps/Test/testh8p/testh8p.asm
new file mode 100644
index 00000000..ada91ca3
--- /dev/null
+++ b/Source/Apps/Test/testh8p/testh8p.asm
@@ -0,0 +1,238 @@
+;===============================================================================
+; H8 Panel Test
+;===============================================================================
+;
+;	AUTHOR:  WAYNE WARTHEN (wwarthen@gmail.com)
+;_______________________________________________________________________________
+;
+;
+; Trivial utility to test the register pair display functionality of the
+; Heath H8 Front Panel.
+;
+; Program will display a set of known register values on the console,
+; then go into an infinite loop.  The H8 panel can then be checked to
+; see if the correct values are displayed.
+;
+; There is no way to exit this program.  You must reset your system.
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+stksiz	.equ	$40		; Working stack size
+;
+restart	.equ	$0000		; CP/M restart vector
+bdos	.equ	$0005		; BDOS invocation vector
+;
+regA	.equ	$11
+regBC	.equ	$2233
+regDE	.equ	$4455
+regHL	.equ	$6677
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+;
+	.org	$100
+;
+	; setup stack (save old value)
+	ld	(stksav),sp	; save stack
+	ld	sp,stack	; set new stack
+;
+	ld	de,str_prefix
+	call	prtstr
+;
+	ld	de,str_A
+	ld	hl,regA
+	call	prtreg
+	ld	de,str_BC
+	ld	hl,regBC
+	call	prtreg
+	ld	de,str_DE
+	ld	hl,regDE
+	call	prtreg
+	ld	de,str_HL
+	ld	hl,regHL
+	call	prtreg
+	ld	de,str_SP
+	ld	hl,regSP
+	call	prtreg
+	ld	de,str_PC
+	ld	hl,regPC
+	call	prtreg
+;
+	ld	a,regA
+	ld	bc,regBC
+	ld	de,regDE
+	ld	hl,regHL
+regPC:	jr	$
+;
+;
+;
+prtreg:
+	call	prtstr		; print label
+	ld	a,h		; first byte
+	call	prtoctbyte	; print it
+	ld	a,'.'		; separator
+	call	prtchr		; print it
+	ld	a,l		; second byte
+	call	prtoctbyte	; print it
+	ret
+;
+;
+;
+prtoctbyte:
+	rlca			; 2 ms bits
+	rlca
+	push	af
+	and	%00000011	; isolate
+	add	a,'0'		; make char
+	call	prtchr		; show it
+	pop	af
+	rlca			; next 3 bits
+	rlca
+	rlca
+	push	af
+	and	%00000111	; isolate
+	add	a,'0'		; make char
+	call	prtchr		; show it
+	pop	af
+	rlca			; next 3 bits
+	rlca
+	rlca
+	push	af
+	and	%00000111	; isolate
+	add	a,'0'		; make char
+	call	prtchr		; show it
+	pop	af
+	ret
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	ret
+;
+; Print a zero terminated string at (DE) without destroying any registers
+;
+prtstr:
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	ret	
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Print the value in A in hex without destroying any registers
+;
+prthex:
+	push	af		; save AF
+	push	de		; save DE
+	call	hexascii	; convert value in A to hex chars in DE
+	ld	a,d		; get the high order hex char
+	call	prtchr		; print it
+	ld	a,e		; get the low order hex char
+	call	prtchr		; print it
+	pop	de		; restore DE
+	pop	af		; restore AF
+	ret			; done
+;
+; print the hex word value in hl
+;
+prthexword:
+	push	af
+	ld	a,h
+	call	prthex
+	ld	a,l
+	call	prthex 
+	pop	af
+	ret
+;
+; print the hex dword value in de:hl
+;
+prthex32:
+	push	bc
+	push	de
+	pop	bc
+	call	prthexword
+	push	hl
+	pop	bc
+	call	prthexword
+	pop	bc
+	ret
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+hexascii:
+	ld	d,a		; save A in D
+	call	hexconv		; convert low nibble of A to hex
+	ld	e,a		; save it in E
+	ld	a,d		; get original value back
+	rlca			; rotate high order nibble to low bits
+	rlca
+	rlca
+	rlca
+	call	hexconv		; convert nibble
+	ld	d,a		; save it in D
+	ret			; done
+;
+; Convert low nibble of A to ascii hex
+;
+hexconv:
+	and	$0F	     	; low nibble only
+	add	a,$90
+	daa	
+	adc	a,$40
+	daa	
+	ret
+;
+;===============================================================================
+; Storage Section
+;===============================================================================
+;
+rtcbuf	.fill	6,$FF		; RTC data buffer
+;
+str_prefix	.db	"\r\n\r\nRegisters: ",0
+;
+str_A		.db	"A=",0
+str_BC		.db	", BC=",0
+str_DE		.db	", DE=",0
+str_HL		.db	", HL=",0
+str_SP		.db	", SP=",0
+str_PC		.db	", PC=",0
+;
+stksav	.dw	0		; stack pointer saved at start
+	.fill	stksiz,0	; stack
+stack	.equ	$		; stack top
+regSP:
+;
+	.end
diff --git a/Source/Apps/Test/tstdskng/Build.cmd b/Source/Apps/Test/tstdskng/Build.cmd
index a56e8dbc..313a450d 100644
--- a/Source/Apps/Test/tstdskng/Build.cmd
+++ b/Source/Apps/Test/tstdskng/Build.cmd
@@ -5,7 +5,7 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF tstdskng.asm tstdskng.com tstdskng.lst || exit /b
+tasm -t80 -g3 -fFF tstdskng.asm tstdskng.com tstdskng.lst || exit /b
 
 copy /Y tstdskng.com ..\..\..\..\Binary\Apps\Test\ || exit /b
 
diff --git a/Source/Apps/Test/vdctest/Build.cmd b/Source/Apps/Test/vdctest/Build.cmd
index 814cb585..c8c336dc 100644
--- a/Source/Apps/Test/vdctest/Build.cmd
+++ b/Source/Apps/Test/vdctest/Build.cmd
@@ -5,8 +5,8 @@ set TOOLS=../../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF vdctest.asm vdctest.com vdctest.lst || exit /b
-tasm -t180 -g3 -fFF vdconly.asm vdconly.com vdconly.lst || exit /b
+tasm -t80 -g3 -fFF vdctest.asm vdctest.com vdctest.lst || exit /b
+tasm -t80 -g3 -fFF vdconly.asm vdconly.com vdconly.lst || exit /b
 
 copy /Y vdctest.com ..\..\..\..\Binary\Apps\Test\ || exit /b
 copy /Y vdconly.com ..\..\..\..\Binary\Apps\Test\ || exit /b
diff --git a/Source/Apps/Tune/Build.cmd b/Source/Apps/Tune/Build.cmd
index 6c601548..eb16f4c7 100644
--- a/Source/Apps/Tune/Build.cmd
+++ b/Source/Apps/Tune/Build.cmd
@@ -5,9 +5,9 @@ set TOOLS=../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF -dWBW tune.asm tune.com tune.lst || exit /b
-tasm -t180 -g3 -fFF -dZX tune.asm tunezx.com tunezx.lst || exit /b
-tasm -t180 -g3 -fFF -dMSX tune.asm tunemsx.com tunemsx.lst || exit /b
+tasm -t80 -g3 -fFF -dWBW tune.asm tune.com tune.lst || exit /b
+tasm -t80 -g3 -fFF -dZX tune.asm tunezx.com tunezx.lst || exit /b
+tasm -t80 -g3 -fFF -dMSX tune.asm tunemsx.com tunemsx.lst || exit /b
 
 copy /Y tune*.com ..\..\..\Binary\Apps\ || exit /b
 copy /Y Tunes\*.* ..\..\..\Binary\Apps\Tunes\ || exit /b
\ No newline at end of file
diff --git a/Source/Apps/Tune/tune.asm b/Source/Apps/Tune/tune.asm
index 8a9d1800..97d16230 100644
--- a/Source/Apps/Tune/tune.asm
+++ b/Source/Apps/Tune/tune.asm
@@ -49,6 +49,9 @@
 ;   2024-02-23 [WBW] Include ACR value in config table
 ;   2024-04-16 [WBW] Add support for NABU AY-3-8910
 ;   2024-05-10 [WBW] Hack to avoid corrupting bits 6&7 of PSG R7 for NABU!
+;   2024-07-08 [WBW] Add support for Les Bird's Graphics, Sound, Joystick
+;   2024-07-11 [WBW] Updated, Les Bird's module now uses same settings as EB6
+;   2024-09-17 [WBW] Add support for HEATH H8 with Les Bird's MSX Card
 ;_______________________________________________________________________________
 ;
 ; ToDo:
@@ -572,8 +575,8 @@ CFGSIZ	.EQU	$ - CFGTBL
 	.DB	$07,	$D8,	$D0,	$D8,	$FF,	$FF,	$FF	; RCZ80 W/ RC SOUND MODULE (EB)
 	.DW	HWSTR_RCEB
 ;
-	.DB	$07,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; RCZ80 W/ RC SOUND MODULE (EB Rev 6)
-	.DW	HWSTR_RCEB6
+	.DB	$07,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; RCZ80 W/ RC SOUND MODULE (MSX)
+	.DW	HWSTR_RCMSX
 ;
 	.DB	$07,	$D1,	$D0,	$D0,	$FF,	$FF,	$FF	; RCZ80 W/ RC SOUND MODULE (MF)
 	.DW	HWSTR_RCMF
@@ -584,8 +587,8 @@ CFGSIZ	.EQU	$ - CFGTBL
 	.DB	$08,	$68,	$60,	$68,	$C0,	$FF,	$FF	; RCZ180 W/ RC SOUND MODULE (EB)
 	.DW	HWSTR_RCEB
 ;
-	.DB	$08,	$A0,	$A1,	$A2,	$C0,	$FF,	$FF	; RCZ180 W/ RC SOUND MODULE (EB Rev 6)
-	.DW	HWSTR_RCEB6
+	.DB	$08,	$A0,	$A1,	$A2,	$C0,	$FF,	$FF	; RCZ180 W/ RC SOUND MODULE (MSX)
+	.DW	HWSTR_RCMSX
 ;
 	.DB	$08,	$61,	$60,	$60,	$C0,	$FF,	$FF	; RCZ180 W/ RC SOUND MODULE (MF)
 	.DW	HWSTR_RCMF
@@ -596,8 +599,8 @@ CFGSIZ	.EQU	$ - CFGTBL
 	.DB	$09,	$D8,	$D0,	$D8,	$FF,	$FF,	$FF	; EZZ80 W/ RC SOUND MODULE (EB)
 	.DW	HWSTR_RCEB
 ;
-	.DB	$09,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; EZZ80 W/ RC SOUND MODULE (EB Rev 6)
-	.DW	HWSTR_RCEB6
+	.DB	$09,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; EZZ80 W/ RC SOUND MODULE (MSX)
+	.DW	HWSTR_RCMSX
 ;
 	.DB	$09,	$D1,	$D0,	$D0,	$FF,	$FF,	$FF	; EZZ80 W/ RC SOUND MODULE (MF)
 	.DW	HWSTR_RCMF
@@ -608,8 +611,8 @@ CFGSIZ	.EQU	$ - CFGTBL
 	.DB	$0A,	$68,	$60,	$68,	$C0,	$FF,	$FF	; SCZ180 W/ RC SOUND MODULE (EB)
 	.DW	HWSTR_RCEB
 ;
-	.DB	$0A,	$A0,	$A1,	$A2,	$C0,	$FF,	$FF	; SCZ180 W/ RC SOUND MODULE (EB Rev 6)
-	.DW	HWSTR_RCEB6
+	.DB	$0A,	$A0,	$A1,	$A2,	$C0,	$FF,	$FF	; SCZ180 W/ RC SOUND MODULE (MS6)
+	.DW	HWSTR_RCMSX
 ;
 	.DB	$0A,	$61,	$60,	$60,	$C0,	$FF,	$FF	; SCZ180 W/ RC SOUND MODULE (MF)
 	.DW	HWSTR_RCMF
@@ -620,8 +623,8 @@ CFGSIZ	.EQU	$ - CFGTBL
 	.DB	$0B,	$D8,	$D0,	$D8,	$FF,	$FF,	$FF	; RCZ280 W/ RC SOUND MODULE (EB)
 	.DW	HWSTR_RCEB
 ;
-	.DB	$0B,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; RCZ280 W/ RC SOUND MODULE (EB Rev 6)
-	.DW	HWSTR_RCEB6
+	.DB	$0B,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; RCZ280 W/ RC SOUND MODULE (MSX)
+	.DW	HWSTR_RCMSX
 ;
 	.DB	$0B,	$D1,	$D0,	$D0,	$FF,	$FF,	$FF	; RCZ280 W/ RC SOUND MODULE (MF)
 	.DW	HWSTR_RCMF
@@ -634,6 +637,9 @@ CFGSIZ	.EQU	$ - CFGTBL
 ;
 	.DB	17,	$A4,	$A5,	$A4,	$FF,	$A6,	$FE	; DUODYNE
 	.DW	HWSTR_DUO
+;
+	.DB	18,	$A0,	$A1,	$A2,	$FF,	$FF,	$FF	; HEATH H8
+	.DW	HWSTR_HEATH
 ;
 	.DB	22,	$41,	$40,	$40,	$FF,	$FF,	$FF	; NABU
 	.DW	HWSTR_NABU
@@ -666,7 +672,7 @@ TMP		.DB	0	; work around use of undocumented Z80
 HBIOSMD		.DB	0	; NON-ZERO IF USING HBIOS SOUND DRIVER, ZERO OTHERWISE
 OCTAVEADJ	.DB	0	; AMOUNT TO ADJUST OCTAVE UP OR DOWN
 
-MSGBAN		.DB	"Tune Player for RomWBW v3.8, 10-May-2024",0
+MSGBAN		.DB	"Tune Player for RomWBW v3.11, 17-Sep-2024",0
 MSGUSE		.DB	"Copyright (C) 2024, Wayne Warthen, GNU GPL v3",13,10
 		.DB	"PTxPlayer Copyright (C) 2004-2007 S.V.Bulba",13,10
 		.DB	"MYMPlay by Marq/Lieves!Tuore",13,10,13,10
@@ -687,12 +693,13 @@ MSGERR		.DB	"App Error", 0
 HWSTR_SCG	.DB	"SCG ECB Board",0
 HWSTR_N8	.DB	"N8 Onboard Sound",0
 HWSTR_RCEB	.DB	"RCBus Sound Module (EB)",0
-HWSTR_RCEB6	.DB	"RCBus Sound Module (EBv6)",0
+HWSTR_RCMSX	.DB	"RCBus Sound Module (MSX)",0
 HWSTR_RCMF	.DB	"RCBus Sound Module (MF)",0
 HWSTR_LINC	.DB	"Z50 LiNC Sound Module",0
 HWSTR_MBC	.DB	"NHYODYNE Sound Module",0
 HWSTR_DUO	.DB	"DUODYNE Sound Module",0
 HWSTR_NABU	.DB	"NABU Onboard Sound",0
+HWSTR_HEATH	.DB	"HEATH H8 MSX Module",0
 
 MSGUNSUP	.db	"MYM files not supported with HBIOS yet!\r\n", 0
 
diff --git a/Source/Apps/VGM/Build.cmd b/Source/Apps/VGM/Build.cmd
index 08e013f5..0a032701 100644
--- a/Source/Apps/VGM/Build.cmd
+++ b/Source/Apps/VGM/Build.cmd
@@ -5,8 +5,8 @@ set TOOLS=../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF -dWBW vgmplay.asm vgmplay.com vgmplay.lst || exit /b
-tasm -t180 -g3 -fFF -dWBW ymfmdemo.asm ymfmdemo.com ymfmdemo.lst || exit /b
+tasm -t80 -g3 -fFF -dWBW vgmplay.asm vgmplay.com vgmplay.lst || exit /b
+tasm -t80 -g3 -fFF -dWBW ymfmdemo.asm ymfmdemo.com ymfmdemo.lst || exit /b
 
 copy /Y vgmplay.com ..\..\..\Binary\Apps\ || exit /b
 copy /Y Tunes\*.vgm ..\..\..\Binary\Apps\Tunes\ || exit /b
diff --git a/Source/Apps/XM/xmdm125.asm b/Source/Apps/XM/xmdm125.asm
index 3340633d..8b02e742 100644
--- a/Source/Apps/XM/xmdm125.asm
+++ b/Source/Apps/XM/xmdm125.asm
@@ -3478,7 +3478,17 @@ RSDMA:	LXI	D,TBUF		; Reset DMA address
 	RET
 ;
 WRERR:	CALL	RSDMA		; Reset DMA to normal
-	MVI	C,CAN		; Cancel
+; [WBW] BEGIN: Fixed to put CAN character in A instead of C because
+; SEND uses the A register.  Also increased number of CAN characters
+; sent to 3.  Credit to HubertH for finding this and providing the fix.
+;	MVI	C,CAN		; Cancel
+; [WBW] -----
+	MVI	A,CAN		; Cancel
+	CALL	SEND		; Sender
+	MVI	A,CAN		; Cancel
+	CALL	SEND		; Sender
+	MVI	A,CAN		; Cancel
+; [WBW] END
 	CALL	SEND		; Sender
 ; [WBW] BEGIN: RCVSABT does not return, so file write error
 ; message was never being displayed.  Swapped things around
diff --git a/Source/Apps/assign.asm b/Source/Apps/assign.asm
deleted file mode 100644
index 7bc6d154..00000000
--- a/Source/Apps/assign.asm
+++ /dev/null
@@ -1,1972 +0,0 @@
-;===============================================================================
-; ASSIGN - Display and/or modify drive letter assignments
-;
-;===============================================================================
-;
-;	Author:  Wayne Warthen (wwarthen@gmail.com)
-;_______________________________________________________________________________
-;
-; Usage:
-;   ASSIGN D:[=[{D:|<device>[<unitnum>]:[<slicenum>]}]][,...]
-;     ex: ASSIGN		(display all active drive assignments)
-;         ASSIGN /?		(display version and usage)
-;         ASSIGN /L		(display all possible devices)
-;         ASSIGN C:=D:		(swaps C: and D:)
-;         ASSIGN C:=FD0:	(assign C: to floppy unit 0)
-;         ASSIGN C:=IDE0:1	(assign C: to IDE unit0, slice 1)
-;         ASSIGN C:=		(unassign C:)
-;_______________________________________________________________________________
-;
-; Change Log:
-;   2016-03-21 [WBW] Updated for HBIOS 2.8
-;   2016-04-08 [WBW] Determine key memory addresses dynamically
-;   2019-08-07 [WBW] Fixed DPB selection error
-;   2019-11-17 [WBW] Added preliminary CP/M 3 support
-;   2019-12-24 [WBW] Fixed location of BIOS save area
-;   2020-04-29 [WBW] Updated for larger DPH (16 -> 20 bytes)
-;   2020-05-06 [WBW] Add patch level to version compare
-;   2020-05-10 [WBW] Set media change flag in XDPH for CP/M 3
-;   2020-05-12 [WBW] Back out media change flag
-;   2021-12-06 [WBW] Fix inverted ROM/RAM DPB mapping in buffer alloc
-;   2022-02-28 [WBW] Use HBIOS to swap banks under CP/M 3
-;                    Use CPM3 BDOS direct BIOS call to get DRVTBL adr
-;   2023-06-19 [WBW] Update for revised DIODEVICE API
-;   2023-09-19 [WBW] Added CHUSB & CHSD device support
-;   2023-10-13 [WBW] Fixed DPH creation to select correct DPB
-;_______________________________________________________________________________
-;
-; ToDo:
-;  1) ASSIGN C: causes drive map to be reinstalled unnecessarily
-;_______________________________________________________________________________
-;
-;===============================================================================
-; Definitions
-;===============================================================================
-;
-stksiz	.equ	$40		; Working stack size
-;
-restart	.equ	$0000		; CP/M restart vector
-bdos	.equ	$0005		; BDOS invocation vector
-bnksel	.equ	$FFF3		; HBIOS bank select vector
-;
-stamp	.equ	$40		; loc of RomWBW CBIOS zero page stamp
-;
-#include "../ver.inc"
-;
-;===============================================================================
-; Code Section
-;===============================================================================
-;
-	.org	$100
-;
-	; relocate to high memory
-	ld	hl,image
-	ld	de,$8000
-	ld	bc,modsize
-	ldir
-	jp	start
-;
-image	.equ	$
-;
-	.org	$8000
-;
-start:
-;
-	; setup stack (save old value)
-	ld	(stksav),sp	; save stack
-	ld	sp,stack	; set new stack
-;
-	; initialization
-	call	init		; initialize
-	jr	nz,exit		; abort if init fails
-;
-	; do the real work 
-	call	process		; parse and process command line
-	jr	nz,exit		; done if error or no action
-;
-	; perform table integrity check
-	call	valid
-	jr	nz,exit
-;
-	; install the new drive map if changes were made
-	ld	a,(modcnt)	; get the mod count
-	or	a		; set flags
-	call	nz,install	; install new drive map
-;
-exit:	; clean up and return to command processor
-	call	crlf		; formatting
-	ld	sp,(stksav)	; restore stack
-	jp	restart		; return to CP/M via restart
-	ret			; return to CP/M w/o restart
-;
-; Initialization
-;
-init:
-;
-	; locate start of cbios (function jump table)
-	ld	hl,(restart+1)	; load address of CP/M restart vector
-	ld	de,-3		; adjustment for start of table
-	add	hl,de		; HL now has start of table
-	ld	(bioloc),hl	; save it
-;
-	; get CP/M version and save it
-	ld	c,$0C		; function number
-	call	bdos		; do it, HL := version
-	ld	(cpmver),hl	; save it
-	;push	hl		; *debug*
-	;pop	bc		; *debug*
-	;call	prthexword	; *debug*
-	;ld	a,l		; low byte
-	;cp	$30		; CP/M 3.0?
-;
-	; get location of config data and verify integrity
-	ld	hl,stamp	; HL := adr or RomWBW zero page stamp
-	ld	a,(hl)		; get first byte of RomWBW marker
-	cp	'W'		; match?
-	jp	nz,errinv	; abort with invalid config block
-	inc	hl		; next byte (marker byte 2)
-	ld	a,(hl)		; load it
-	cp	~'W'		; match?
-	jp	nz,errinv	; abort with invalid config block
-	inc	hl		; next byte (major/minor version)
-	ld	a,(hl)		; load it
-	cp	RMJ << 4 | RMN	; match?
-	jp	nz,errver	; abort with invalid os version
-	inc	hl		; next byte (update/patch)
-	ld	a,(hl)		; load it
-	and	$F0		; eliminate patch num
-	cp	RUP << 4	; match?
-	jp	nz,errver	; abort with invalid os version
-	inc	hl		; bump past version info
-;
-	; dereference HL to point to CBIOS extension data
-	ld	a,(hl)		; dereference HL
-	inc	hl		;   ... to point to
-	ld	h,(hl)		;   ... ROMWBW config data block
-	ld	l,a		;   ... in CBIOS
-;
-	; skip device map address
-	inc	hl		; bump two bytes
-	inc	hl		; ... past device map address entry
-;
-	; get location of drive map
-	ld	e,(hl)		; dereference HL
-	inc	hl		; ... into DE to get
-	ld	d,(hl)		; ... drive map pointer
-	inc	hl		; skip past drive map pointer
-	ld	(maploc),de	; and save it
-;
-	; get location of dpbmap
-	ld	e,(hl)		; dereference HL
-	inc	hl		; ... into DE to get
-	ld	d,(hl)		; ... DPB map pointer
-	ld	(dpbloc),de	; and save it	
-;
-	; test for CP/M 3 and branch if so
-	ld	a,(cpmver)	; low byte of cpm version
-	cp	$30		; CP/M 3.0?
-	jp	nc,initcpm3	; handle CP/M 3.0 or greater
-;
-	; make a local working copy of the drive map
-	ld	hl,(maploc)	; copy from CBIOS drive map
-	ld	de,mapwrk	; copy to working drive map
-	dec	hl		; point to entry count
-	ld	a,(hl)		; get entry count
-	inc	hl		; restore hl pointer to drive map start
-	add	a,a		; multiple a by
-	add	a,a		; ... size of entries (4 bytes each)
-	ld	c,a		; set BC := 0A
-	ld 	b,0		; ... so BC is length to copy
-	ldir			; do the copy
-;
-	; determine end of CBIOS (assume HBIOS for now)
-	ld	hl,($FFFE)	; get proxy start address
-	ld	(bioend),hl	; save as CBIOS end address
-;
-	; check for UNA (UBIOS)
-	ld	a,($FFFD)	; fixed location of UNA API vector
-	cp	$C3		; jp instruction?
-	jr	nz,initx	; if not, not UNA
-	ld	hl,($FFFE)	; get jp address
-	ld	a,(hl)		; get byte at target address
-	cp	$FD		; first byte of UNA push ix instruction
-	jr	nz,initx	; if not, not UNA
-	inc	hl		; point to next byte
-	ld	a,(hl)		; get next byte
-	cp	$E5		; second byte of UNA push ix instruction
-	jr	nz,initx	; if not, not UNA
-	ld	hl,unamod	; point to UNA mode flag
-	ld	(hl),$FF	; set UNA mode flag
-	ld	c,$F1		; UNA func: Get HMA
-	rst	08		; call UNA, HL := UNA proxy start address
-	ld	(bioend),hl	; save as CBIOS end address
-;
-initx:
-	; compute size of CBIOS
-	ld	hl,(bioend)	; HL := end address
-	ld	de,(bioloc)	; DE := starting address
-	xor	a		; clear carry
-	sbc	hl,de		; subtract to get size in HL
-	ld	(biosiz),hl	; and save it
-;
-	; establish heap limit
-	ld	hl,(bioend)	; HL := end of CBIOS address
-	ld	de,-$40		; allow 40 bytes for CBIOS stack
-	add	hl,de		; adjust
-	ld	(heaplim),hl	; save it
-;
-#if 0
-	ld	a,' '
-	call	crlf
-	ld	bc,(bioloc)
-	call	prthexword
-	call	prtchr
-	ld	bc,(bioend)
-	call	prthexword
-	call	prtchr
-	ld	bc,(maploc)
-	call	prthexword
-	call	prtchr
-	ld	bc,(heaplim)
-	call	prthexword
-	
-#endif
-;
- 	; return success
-	xor	a		; signal success
-	ret			; return
-;
-; CP/M 3 initialization
-;
-initcpm3:
-	ld	a,22		; XBIOS DRVTBL function
-	call	xbios		; Invoke XBIOS
-	ld	(drvtbl),hl	; save DRVTBL address
-;
-; The CP/M 3 drvtbl is in common memory, but the XDPHs are not.
-; So, here we temporarily swap the bank to the CP/M 3 system
-; bank.  We cannot use the CP/M Direct BIOS call because it
-; explicitly blocks use of SELMEM, so we are forced to use
-; HBIOS call.  The CP/M 3 system bank is always the HBIOS
-; user bank.
-;
-	; switch to sysbnk
-	ld	a,($FFE0)	; get current bank
-	push	af		; save it
-	ld	bc,$F8F2	; HBIOS Get Bank Info
-	rst	08		; call HBIOS, E=User Bank
-	ld	a,e		; HBIOS User Bank
-	call	bnksel		; HBIOS BNKSEL
-;
-	; copy CP/M 3 drvtbl to drvmap working copy
-	ld	hl,(drvtbl)	; get drive table in HL
-	ld	de,mapwrk	; DE := working drive map
-	ld	b,16
-initc2:
-	push	hl		; save drvtbl entry adr
-	ld	a,(hl)		; deref HL to get DPH adr
-	inc	hl		; ...
-	ld	h,(hl)		; ...
-	ld	l,a		; ...
-	ld	a,l		; check for
-	or	h		; ... zero
-	jr	nz,initc3	; if not zero, copy entry
-	inc	de		; ... else bump past unit field
-	jr	initc4		; ... and continue without copying
-initc3:
-	dec	hl		; back up to
-	dec	hl		; ... unit
-	ld	a,(hl)		; get unit from drvtbl
-	ld	(de),a		; save unit to drvmap
-	inc	hl		; bump to slice
-	inc	de		; bump to slice
-	ld	a,(hl)		; get slice from drvtbl
-	ld	(de),a		; save slice to drvmap
-initc4:	
-	inc	de		; bump past slice
-	inc	de		; skip
-	inc	de		; ... dph
-	pop	hl		; back to drvtbl entry
-	inc	hl		; bump to
-	inc	hl		; ... next drvtbl entry
-	djnz	initc2
-;
-	; switch back to tpabnk
-	pop	af		; recover prev bank
-	call	bnksel		; HBIOS BNKSEL
-;
- 	; return success
-	xor	a		; signal success
-	ret			; return
-;
-; Process command line
-;
-process:
-;
-	; look for start of parms
-	ld	hl,$81		; point to start of parm area (past len byte)
-	call	nonblank	; skip to next non-blank char
-	jp	z,showall	; no parms, show all active assignments
-;
-	; check for special option, introduced by a "/"
-	cp	'/'		; start of usage request?
-	jp	z,option	; yes, handle option
-;
-process0:
-;
-	sub	'A'		; make it binary
-	ld	(dstdrv),a	; save it as destination drive
-	inc	hl		; next char
-	ld	a,(hl)		; get it
-	cp	':'		; is it ':' as expected?
-	jp	nz,errprm	; error if not
-	inc	hl		; skip ':'
-	call	nonblank	; skip possible blanks
-	cp	'='		; proper delimiter?
-	jr	z,process1	; yes, continue
-
-	ld	de,drvshow	; show the drive
-	ld	a,(dstdrv)	; load the drive
-	jr	process4	; do it
-;
-process1:	; handle other side of '='
-;
-	inc	hl		; skip '='
-	call	nonblank	; skip blanks as needed
-	ld	de,drvdel	; assume a drive delete
-	jp	z,process4	; continue to processing
-	cp	','		; comma?
-	jp	z,process4	; continue to processing
-	call	getalpha	; gobble all alpha characters
-	dec	b		; decrement num chars parsed
-	jr	nz,process2	; more than 1 char, handle as device name
-;
-	; handle as drive swap
-	cp	':'		; check for mandatory trailing colon
-	jp	nz,errprm	; handle unexpected character
-	inc	hl		; skip ':'
-	ld	a,(tmpstr)	; get the drive letter
-	sub	'A'		; make it binary
-	ld	(srcdrv),a	; assume it is a src drv and save it
-	ld	de,drvswap	; put routine to call in DE
-	jr	process4	; and continue
-;
-process2:	; handle a device/slice assignment
-;
-	call	getnum		; get number from buffer
-	jp	c,errnum	; abort on overflow
-	cp	16		; compare to max
-	jp	nc,errnum	; abort if too high
-	ld	(unit),a	; save it as unit num
-	ld	a,(hl)		; get terminating char
-	cp	':'		; check for mandatory colon
-	jp	nz,errprm	; handle unexpected character
-	inc	hl		; skip past colon
-	call	getnum		; get number from buffer
-	jp	c,errnum	; abort on overflow
-	ld	(slice),a	; save it as slice num
-	ld	de,drvmap	; put routine to call in DE
-	jr	process4	; and continue
-;
-process4:	; check for terminating null or comma
-;
-	call	nonblank	; skip possible blanks
-	jr	z,process5	; null terminator OK
-	cp	','		; check for comma
-	jr	z,process5	; also OK
-	jp	errprm		; otherwise parm error
-;
-process5:	; do the processing
-;
-	ex	de,hl		; move routine to call to HL
-	push	de		; save command string pointer
-	call	jphl		; do the work
-	pop	hl		; recover command string pointer
-	ret	nz		; abort on error
-	ld	a,(hl)		; get the current cmd string char
-	or	a		; set flags
-	ret	z		; if null, we are done
-	inc	hl		; otherwise, skip comma
-	call	nonblank	; and possible blanks after comma
-	ret	z		; get out if nothing more
-	jp	process0	; we have more work, loop
-;
-; Handle special options
-;
-option:
-;
-	inc	hl		; next char
-	ld	a,(hl)		; get it
-	cp	'?'		; is it a '?' as expected?
-	jp	z,usage		; yes, display usage
-	cp	'L'		; is it a 'L', display device list?
-	jp	z,devlist	; yes, display device list
-	jp	errprm		; anything else is an error
-;
-usage:
-;
-	call	crlf		; formatting
-	ld	de,msgban1	; point to version message part 1
-	call	prtstr		; print it
-	ld	de,msg22	; assume CP/M 2.2
-	ld	a,(cpmver)	; low byte of ver
-	cp	$30		; CP/M 3.0?
-	jp	c,usage1	; if not, jump ahead
-	ld	de,msg3		; CP/M 3
-usage1:
-	call	prtstr
-	ld	de,msbban2	; next portion of banner
-	call	prtstr
-	ld	a,(unamod)	; get UNA flag
-	or	a		; set flags
-	ld	de,msghb	; point to HBIOS mode message
-	call	z,prtstr	; if not UNA, say so
-	ld	de,msgub	; point to UBIOS mode message
-	call	nz,prtstr	; if UNA, say so
-	call	crlf		; formatting
-	ld	de,msgban3	; point to version message part 2
-	call	prtstr		; print it
-	call	crlf2		; blank line
-	ld	de,msguse	; point to usage message
-	call	prtstr		; print it
-	or	$FF		; signal no action performed
-	ret			; and return
-;
-devlist:
-;
-	ld	a,(unamod)	; get UNA mode flag
-	or	a		; set flags
-	jr	nz,devlstu	; do UNA mode dev list
-;
-	ld	b,$F8		; hbios func: sysget
-	ld	c,$10		; sysget subfunc: diocnt
-	rst	08		; call hbios, E := device count 
-	ld	b,e		; use device count for loop count
-	ld	c,0		; use C for device index
-devlist1:
-	call	crlf		; formatting
-	ld	de,indent	; indent
-	call	prtstr		; ... to look nice
-	push	bc		; preserve loop control
-	ld	a,c		; device to A
-	call	prtdev		; print device mnemonic
-	ld	a,':'		; colon for device/unit format
-	call	prtchr		; print it
-	pop	bc		; restore loop control
-	inc	c		; next device index
-	djnz	devlist1	; loop as needed
-	or	$FF		; signal no action taken
-	ret			; done
-;
-devlstu:
-	; UNA mode device list
-	ld	b,0		; use unit 0 to get count
-	ld	c,$48		; una func: get disk type
-	ld	l,0		; preset unit count to zero
-	rst	08		; call una, b is assumed to be untouched!!!
-	ld	a,l		; unit count to a
-	or	a		; set flags
-	ret	z		; no units, return
-	ld	b,l		; unit count to b
-	ld	c,0		; init unit index
-devlstu1:
-	call	crlf		; formatting
-	ld	de,indent	; indent
-	call	prtstr		; ... to look nice
-	push	bc		; save loop control vars
-	ld	a,c		; put unit num in A
-	push	af		; save it
-	call	prtdevu		; print the device name
-	pop	af		; restore unit num
-	call	prtdecb		; print unit num
-	ld	a,':'		; colon delimiter
-	call	prtchr		; print it
-	pop	bc		; restore loop control
-	inc	c		; next drive
-	djnz	devlstu1	; loop as needed
-	ret			; return
-;
-; Install the new drive map into CBIOS
-;
-install:
-	ld	a,(cpmver)	; low byte of CP/M version
-	cp	$30		; CP/M 3.0?
-	jp	nc,instcpm3	; handle CP/M 3.0 or greater
-;
-	; capture CBIOS snapshot and stack frame for error recovery
-	ld	hl,(bioloc)	; start of CBIOS
-	ld	de,$1000	; save it here
-	ld	bc,(biosiz)	; size of CBIOS
-	ldir			; save it
-	ld	(xstksav),sp	; save stack frame
-	; clear CBIOS buffer area
-	ld	hl,(maploc)	; start fill at drive map
-	ld	a,(bioend + 1)	; msb of CBIOS end address to A
-install1:
-	ld	e,0		; fill with null
-	ld	(hl),e		; fill next byte
-	inc	hl		; point to next byte
-	cp	h		; is H == msb of CBIOS end address?
-	jr	nz,install1	; if not, loop
-;
-	; determine the drive map entry count
-	ld	hl,mapwrk
-	ld	c,0
-	ld	b,16
-install2:
-	ld	a,$FF
-	cp	(hl)
-	jr	z,install3
-	ld	e,c		; remember high water mark
-install3:
-	inc	hl
-	inc	hl
-	inc	hl
-	inc	hl
-	inc	c
-	djnz	install2
-	inc	e		; convert from max value to count
-;
-	; record entry count in CBIOS
-	ld	hl,(maploc)	; start of map
-	dec	hl		; backup to entry count
-	ld	(hl),e		; record count
-;
-	; copy map
-	ld	a,e		; A := entry count
-	add	a,a		; multiply by size
-	add	a,a		; ... of entry (4 bytes)
-	ld	c,a		; put in C for count
-	ld	b,0		; msb of count is always zero
-	ld	hl,mapwrk	; source of copy is work map
-	ld	de,(maploc)	; target is CBIOS map loc
-	ldir			; do it
-;
-	; set start of memory allocation heap
-	ld	(heaptop),de	; DE has next byte available
-;
-	; allocate directory buffer
-	ld	hl,128		; size of directory buffer
-	call	alloc		; allocate the space
-	jp	c,instovf	; handle overflow error
-	ld	(dirbuf),hl	; ... and save in dirbuf
-;
-dph_init:
-;
-; iterate through drive map to build dph entries dynamically
-;
-	; setup for dph build loop
-	ld	hl,(maploc)	; point to drive map
-	dec	hl		; backup to entry count
-	ld	b,(hl)		; loop drvcnt times
-	ld	c,0		; drive index
-	inc	hl		; bump to start of drive map
-;
-dph_init1:
-	; no DPH if drive not assigned
-	ld	a,(hl)
-	cp	$FF
-	jr	nz,dph_init2
-	ld	de,0		; not assigned, use DPH pointer of zero
-	jr	dph_init3
-;
-dph_init2:
-	ld	a,(hl)		; unit to A
-	push	bc		; save loop control
-	push	hl		; save drive map pointer
-	;ld	hl,16		; size of a DPH structure
-	ld	hl,20		; size of a DPH structure
-	call	alloc		; allocate space for dph
-	jp	c,instovf	; handle overflow error
-	push	hl		; save DPH location
-	push	hl		; move DPH location
-	pop	de		; ... to DE
-	call	makdph		; make the DPH, unit in A from above
-	pop	de		; restore DPH pointer to DE
-	pop	hl		; restore drive map pointer to HL
-	pop	bc		; restore loop control
-;
-dph_init3:
-	inc	hl		; bump to slice loc
-	inc	hl		; bump to DPH pointer lsb
-	ld	(hl),e		; save lsb
-	inc	hl		; bump to DPH pointer msb
-	ld	(hl),d		; save msb
-	inc	hl		; bump to start of next drive map entry
-	inc	c		; next drive index
-	djnz	dph_init1	; loop as needed
-;
-	; display free memory
-	call	crlf2
-	ld	de,indent
-	call	prtstr
-	ld	hl,(heaplim)	; subtract high water
-	ld	de,(heaptop)	; ... from top of cbios
-	or	a		; ... with cf clear
-	sbc	hl,de		; ... so hl gets bytes free
-	call	prtdecw		; print it
-	ld	de,msgmem	; add description
-	call	prtstr		; and print it
-;
-	call	drvrst		; perform BDOS drive reset
-;	
-	xor	a		; signal success
-	ret			; done
-;
-makdph:
-;
-; make a dph at address in de for dev/unit in a
-;
-	push	de		; save incoming dph address
-;
-	ld	c,a		; save incoming dev/unit
-	ld	a,(unamod)	; get UNA mode flag
-	or	a		; set flags
-	ld	a,c		; restore incoming dev/unit
-	jr	nz,makdphuna	; do UNA mode
-	jr	makdphwbw	; do WBW mode
-;
-makdphuna:	; determine appropriate dpb (WBW mode)
-	ld	b,a		; unit num to b
-	ld	c,$48		; una func: get disk type
-	rst	08		; call una
-	ld	a,d		; move disk type to a
-;
-	; derive dpb address based on disk type
-	cp	$40		; ram/rom drive?
-	jr	z,makdphuna1	; handle ram/rom drive if so
-;	cp	$??		; floppy drive?
-;	jr	z,xxxxx		; handle floppy
-	ld	e,4		; assume hard disk
-	jr	makdph0		; continue
-;
-makdphuna1:	; handle ram/rom
-	ld	c,$45		; una func: get disk info
-	ld	de,$9000	; 512 byte buffer *** fix!!! ***
-	rst	08		; call una
-	bit	7,b		; test ram drive bit
-	ld	e,1		; assume rom
-	jr	z,makdph0	; not set, rom drive, continue
-	ld	e,2		; otherwise, must be ram drive
-	jr	makdph0		; continue
-;
-makdphwbw:	; determine appropriate dpb (WBW mode, unit number in A)
-;
-	ld	c,a		; unit number to C
-	ld	b,$17		; HBIOS: Report Device Info
-	rst	08		; call HBIOS, return w/ device type in D, physical unit in E
-	ld	a,d		; device type to A
-	cp	$00		; ram/rom?
-	jr	nz,makdph00	; if not, skip ahead to other types
-	ld	a,e		; physical unit number to A
-	ld	e,1		; assume rom
-	cp	$01		; rom?
-	jr	z,makdph0	; yes, jump ahead
-	ld	e,2		; otherwise ram
-	jr	makdph0		; jump ahead
-makdph00:	
-	ld	e,6		; assume floppy
-	cp	$01		; floppy?
-	jr	z,makdph0	; yes, jump ahead
-	ld	e,3		; assume ram floppy
-	cp	$02		; ram floppy?
-	jr	z,makdph0	; yes, jump ahead
-	ld	e,4		; everything else is assumed to be hard disk
-	jr	makdph0		; yes, jump ahead
-;
-makdph0:
-	ld	hl,(dpbloc)	; point to start of dpb table in CBIOS
-	ld	a,e		; get index of target DPB to A
-	add	a,a		; each entry is two bytes
-	call	addhl		; add offset for desired DPB address
-	ld	e,(hl)		; dereference HL
-	inc	hl		; into DE, so DE
-	ld	d,(hl)		; has address of target DPB
-;
-makdph1:
-;
-	; build the dph
-	pop	hl		; hl := start of dph
-	ld	a,8		; size of dph reserved area
-	call	addhl		; leave it alone (zero filled)
-;	
-	ld	bc,(dirbuf)	; address of dirbuf
-	ld	(hl),c		; plug dirbuf
-	inc	hl		; ... into dph
-	ld	(hl),b		; ... and bump
-	inc	hl		; ... to next dph entry
-;
-	ld	(hl),e		; plug dpb address
-	inc	hl		; ... into dph
-	ld	(hl),d		; ... and bump
-	inc	hl		; ... to next entry
-	dec	de		; point
-	dec	de		; ... to start
-	dec	de		; ... of
-	dec	de		; ... dpb
-	dec	de		; ... prefix data (cks & als buf sizes)
-	call	makdph2		; handle cks buf, then fall thru for als buf
-	ret	nz		; bail out on error
-;
-makdph2:
-	; DE = address of CKS or ALS buf to allocate
-	; HL = address of field in DPH to get allocated address
-	push	hl		; save DPH field ptr
-	pop	bc		; into BC
-;
-	; HL := alloc size, DE bumped
-	ex	de,hl
-	ld	e,(hl)		; get size to allocate 
-	inc	hl		; ...
-	ld	d,(hl)		; ... into HL
-	inc	hl		; and bump DE
-	ex	de,hl
-;
-	; check for size of zero, special case
-	ld	a,h		; check to see
-	or	l		; ... if hl is zero
-	jr	z,makdph3	; if so, jump ahead using hl as address
-;
-	; allocate memory
-	call	alloc		; do the allocation
-	jp	c,instovf	; bail out on overflow
-	
-makdph3:
-	; swap hl and bc
-	push	bc		; bc -> (sp)
-	ex	(sp),hl		; (sp) -> hl, hl -> (sp)
-	pop	bc		; (sp) -> bc
-;
-	; save allocated address
-	ld	(hl),c		; save cks/als buf
-	inc	hl		; ... address in
-	ld	(hl),b		; ... dph and bump
-	inc	hl		; ... to next dph entry	
-	xor	a		; signal success
-	ret
-;
-;
-;
-instcpm3:
-	; swicth to sysbnk
-	ld	a,($FFE0)	; get current bank
-	push	af		; save it
-	ld	bc,$F8F2	; HBIOS Get Bank Info
-	rst	08		; call HBIOS, E=User Bank
-	ld	a,e		; HBIOS User Bank
-	call	$FFF3		; HBIOS BNKSEL
-;
-	; copy drvmap working copy to CP/M 3 drvtbl
-	ld	hl,(drvtbl)	; get drvtbl address
-	ld	a,(hl)		; deref HL to get DPH0 adr
-	inc	hl		; ...
-	ld	h,(hl)		; ...
-	ld	l,a		; ...
-	ld	(dphadr),hl	; save starting dphadr
-	
-	
-	ld	hl,(drvtbl)	; get drive table in HL
-	ld	de,mapwrk	; DE := working drive map
-	ld	b,16
-instc1:
-	ld	a,(de)		; get unit field of mapwrk
-	inc	a		; test for $FF
-	jr	nz,instc2	; if used, do copy
-	xor	a		; zero accum
-	ld	(hl),a		; zero lsb of drvtbl entry adr
-	inc	hl		; move to msb
-	ld	(hl),a		; zero msb of drvtbl entry adr
-	inc	hl		; bump to start of next drvtbl entry
-	inc	de		; bump to next mapwrk entry
-	inc	de		; ...
-	inc	de		; ...
-	inc	de		; ...
-	jr	instc3		; resume loop without copy
-;
-instc2:	
-	push	hl		; save drvtbl entry adr
-	push	de		; save mapwrk entry adr
-	ld	de,(dphadr)	; get cur dph adr
-	ld	(hl),e		; save dph adr to drvtbl
-	inc	hl		; ...
-	ld	(hl),d		; ...
-	ex	de,hl		; dph adr to HL
-	pop	de		; restore mapwrk entry adr
-	dec	hl		; backup to unit
-	dec	hl		; ...
-	ld	a,(de)		; get unit from mapwrk
-	ld	(hl),a		; put unit into DPH field
-	inc	de		; bump to slice field of mapwrk
-	inc	hl		; bump to slice field of DPH field
-	ld	a,(de)		; get slice from mapwrk
-	ld	(hl),a		; put slice into DPH field
-;	ld	a,11		; media byte is 11 bytes ahead
-;	call	addhl		; bump HL to media byte adr
-;	or	$FF		; use $FF to signify media change
-;	ld	(hl),a		; set media flag byte
-	inc	de		; bump to next mapwrk entry
-	inc	de		; ...
-	inc	de		; ...
-	pop	hl		; back to drvtbl entry
-	inc	hl		; bump to
-	inc	hl		; ... next drvtbl entry
-instc3:
-	push	hl		; save drvtbl entry adr
-	push	de		; save mapwrk entry adr
-	ld	hl,(dphadr)	; get cur dph address
-	ld	de,$27		; size of xdph
-	add	hl,de		; bump to next dph
-	ld	(dphadr),hl	; save it
-	pop	de		; recover mapwrk entry adr
-	pop	hl		; recover drvtbl entry adr
-	djnz	instc1
-;
-	; switch back to tpabnk
-	pop	af		; recover prev bank
-	call	$FFF3		; HBIOS BNKSEL
-;
-	; set SCB drive door open flag
-	ld	a,$54		; SCB drive door opened flag
-	ld	(scboff),a	; set offset parm
-	or	$FF		; SCB operation, $FF = set
-	ld	(scbop),a	; set operation parm
-	ld	(scbval),a	; set value parm to $FF
-	ld	c,$31		; get/set system control block
-	ld	de,scbpb	; scb parameter block adr
-	call	bdos
-;
-	call	drvrst		; perform BDOS drive reset
-;
-	xor	a		; signal success
-	ret
-;
-; Handle overflow error in installation
-;
-instovf:
-	; restore stack frame and CBIOS image
-	ld	sp,(xstksav)	; restore stack frame
-	ld	hl,$1000	; start of CBIOS image buffer
-	ld	de,(bioloc)	; start of CBIOS
-	ld	bc,(biosiz)	; size of CBIOS
-	ldir			; restore it
-	jp	errovf
-;
-; Allocate HL bytes from heap
-; Return pointer to allocated memory in HL
-; On overflow error, C set
-;
-alloc:
-	push	de		; save de so we can use it for work reg
-	ld	de,(heaptop)	; get current heap top
-	push	de		; and save for return value
-	add	hl,de		; add requested space, hl := new heap top
-	jr	c,allocx	; test for cpu memory space overflow
-	ld	de,(heaplim)	; load de with heap limit
-	ex	de,hl		; de=new heaptop, hl=heaplim
-	sbc	hl,de		; heaplim - heaptop
-	jr	c,allocx	; c set on overflow error
-	; allocation succeeded, commit new heaptop              
-	ld	(heaptop),de	; save new heaptop
-allocx:                         
-	pop	hl		; return value to hl
-	pop	de		; recover de
-	ret
-;
-; Scan drive map table for integrity
-; Currently just checks for multiple drive 
-;   letters referencing a single file system
-;
-valid:
-	ld	hl,mapwrk	; point to working drive map table
-	ld	b,16 - 1	; loop one less times than num entries
-;
-	; check that drive A: is assigned
-	ld	a,$FF		; value that indicates unassigned
-	cp	(hl)		; compare to A: value
-	jp	z,errnoa	; handle failure
-;
-valid1:		; outer loop
-;	call	crlf
-	push	hl		; save pointer
-	push	bc		; save loop control
-	call	valid2		; do the inner loop
-	pop	bc		; restore loop control
-	pop	hl		; restore pointer
-	jp	z,errint	; validation error
-	ld	a,4		; 4 bytes per entry
-	call	addhl		; bump to next entry
-	djnz	valid1		; loop until done
-	xor	a		; signal OK
-	ret			; done
-;
-valid2:		; setup for inner loop
-	push	hl		; save HL
-	ld	a,4		; 4 bytes per entry
-	call	addhl		; point to entry following
-	pop	de		; de points to comparison entry
-;
-valid3:		; inner loop
-	; bypass unassigned drives (only need to test 1)
-	ld	a,(hl)		; get first drive unit in A
-	cp	$FF		; unassigned?
-	jr	z,valid4	; yes, skip
-;
-	; compare unit/slice values
-	ld	a,(de)		; first byte to A
-	cp	(hl)		; compare
-	jr	nz,valid4	; if not equal, continue loop
-	inc	de		; bump DE to next byte
-	inc	hl		; bump HL to next byte
-	ld	a,(de)		; first byte to A
-	cp	(hl)		; compare
-	ret	z		; both bytes equal, return signalling problem
-	dec	de		; point DE back to first byte of comparison entry
-	dec	hl		; point HL back
-;
-valid4:		; no match, loop
-	inc	hl
-	inc	hl		; bump HL
-	inc	hl		; ... to
-	inc	hl		; ... next entry
-	or	$FF		; no match
-	djnz	valid3		; loop as appropriate
-	ret
-;
-; Show a specific drive assignment
-;
-drvshow:
-	ld	a,(dstdrv)	; get the drive num
-	call	chkdrv		; valid drive letter?
-	ret	nz		; abort if not
-	call	showone		; show it
-	xor	a		; signal success
-	ret			; done
-;
-; Delete (unassign) drive
-;
-drvdel:
-	ld	a,(dstdrv)	; get the dest drive (to be unassigned)
-	call	chkdrv		; valid drive letter?
-	ret	nz		; abort if not
-	; point to correct entry in drive map
-	ld	hl,mapwrk	; point to working drive map
-	ld	a,(dstdrv)	; get drive letter to remove
-	rlca			; calc table offset
-	rlca			; ... as drive num * 4
-	call	addhl		; get final table offset
-	; wipe out the drive letter
-	ld	a,$FF		; dev/unit := $FF (unassigned)
-	ld	(hl),a		; do it
-	xor	a		; zero accum
-	inc	hl		; slice := 0
-	ld	(hl),a		; do it
-	inc	hl		; DPH pointer lsb := 0
-	ld	(hl),a		; do it
-	inc	hl		; DPH pointer msb := 0
-	ld	(hl),a		; do it
-	; done
-	ld	a,(dstdrv)	; get the destination
-	call	showone		; show it
-	ld	hl,modcnt	; point to mod count
-	inc	(hl)		; increment it
-	xor	a		; signal success
-	ret
-;
-; Swap the source and destination drive letters
-;
-drvswap:
-	ld	a,(dstdrv)	; get the destination drive
-	call	chkdrv		; valid drive?
-	ret	nz		; abort if not
-	ld	a,(srcdrv)	; get the source drive
-	call	chkdrv		; valid drive?
-	ret	nz		; abort if not
-	ld	hl,(drives)	; load source/dest in DE
-	ld	a,h		; put source drive num in a
-	cp	l		; compare to the dest drive num
-	jp	z,errswp	; Invalid swap request, src == dest
-;
-	; Get pointer to source drive table entry
-	ld	hl,mapwrk
-	ld	a,(srcdrv)
-	rlca
-	rlca
-	call	addhl
-	ld	(srcptr),hl
-;
-	; Get pointer to destination drive table entry
-	ld	hl,mapwrk
-	ld	a,(dstdrv)
-	rlca
-	rlca
-	call	addhl
-	ld	(dstptr),hl
-;	
-	; 1) dest -> temp
-	ld	hl,(dstptr)
-	ld	de,tmpent
-	ld	bc,4
-	ldir
-;
-	; 2) source -> dest
-	ld	hl,(srcptr)
-	ld	de,(dstptr)
-	ld	bc,4
-	ldir
-;
-	; 3) temp -> source
-	ld	hl,tmpent
-	ld	de,(srcptr)
-	ld	bc,4
-	ldir
-;
-	; print the results
-	ld	a,(dstdrv)	; get the destination
-	call	showone		; show it
-	ld	a,(srcdrv)	; get the source drive
-	call	showone		; show it
-;
-	ld	hl,modcnt	; point to mod count
-	inc	(hl)		; increment it
-	xor	a		; signal success
-	ret			; exit
-;
-; Assign drive to specified unit/slice
-;
-drvmap:
-	; check for UNA mode
-	ld	a,(unamod)	; get UNA mode flag
-	or	a		; set flags
-	jr	nz,drvmapu	; do UNA mode drvmap
-;
-		; determine device code by scanning for string
-	ld	b,16		; device table always has 16 entries
-	ld	c,0		; c is used to track table entry num
-	ld	de,tmpstr	; de points to specified device name
-	ld	hl,devtbl	; hl points to first entry of devtbl
-;
-drvmap1:	; loop through device table looking for a match
-	push	hl		; save device table entry pointer
-	ld	a,(hl)		; dereference HL
-	inc	hl		;   ... to point to
-	ld	h,(hl)		;   ... string
-	ld	l,a		;   ... in device table
-	push	de		; save string pointer
-	push	bc		; save loop control stuff
-	call	strcmp		; compare strings
-	pop	bc		; restore loop control stuff
-	pop	de		; restore de
-	pop	hl		; restore table entry pointer
-	jr	z,drvmap2	; match, continue
-	inc	hl		; bump to next
-	inc	hl		; device table pointer
-	inc	c		; keep track of table entry num
-	djnz	drvmap1		; and loop
-	jp	errdev
-;
-drvmap2:	
-	; convert index to device type id
-	ld	a,c		; index to accum
-	ld	(device),a	; save as device id
-;
-	; loop thru hbios units looking for device type/unit match
-	ld	b,$F8		; hbios func: sysget
-	ld	c,$10		; sysget subfunc: diocnt
-	rst	08		; call hbios, E := device count 
-	ld	b,e		; use device count for loop count
-	ld	c,0		; use C for device index
-drvmap3:
-	push	bc		; preserve loop control
-	ld	b,$17		; hbios func: diodevice
-	rst	08		; call hbios, D := device, E := unit
-	pop	bc		; restore loop control
-	ld	a,(device)
-	cp	d
-	jr	nz,drvmap4
-	ld	a,(unit)
-	cp	e
-	jr	z,drvmap5	; match, continue, C = BIOS unit
-drvmap4:
-	; continue looping
-	inc	c
-	djnz	drvmap3
-	jp	errdev		; invalid device specified
-;
-drvmap5:
-	; check for valid unit (supported by BIOS)
-	push	bc		; save unit
-	ld	a,c		; unit to A
-	call	chkdev		; check validity
-	pop	bc		; restore unit
-	ret	nz		; bail out on error
-	
-	; resolve the CBIOS DPH table entry
-	ld	a,(dstdrv)	; dest drv num to A
-	call	chkdrv		; valid drive?
-	ret	nz		; abort if invalid
-	ld	hl,mapwrk	; point to start of drive map
-	rlca			; multiply by
-	rlca			; ... entry size of 4
-	call	addhl		; adjust HL to point to entry
-	ld	(dstptr),hl	; save it
-;
-	; shove updated unit/slice into the entry
-	ld	(hl),c		; save unit byte
-	inc	hl		; bump to next byte
-	ld	a,(slice)
-	ld	(hl),a		; save slice
-;
-	; finish up
-	ld	a,(dstdrv)	; get the destination drive
-	call	showone		; show it's new value
-	ld	hl,modcnt	; point to mod count
-	inc	(hl)		; increment it
-	xor	a		; signal success
-	ret			; exit
-;
-; UNA mode drive mapping
-;
-drvmapu:
-;
-	; verify the device nmeumonic
-	ld	a,(unit)	; get unit specified
-	ld	b,a		; put in b
-	ld	d,0		; preset type to 0
-	ld	c,$48		; una func: get disk type
-	rst	08		; call una, b is assumed to be untouched!!!
-	ld	a,d		; resultant device type to a
-	cp	$40		; RAM/ROM
-	jr	z,drvmapu0	; special case for RAM/ROM
-	ld	de,udevide	; assume IDE
-	cp	$41		; IDE?
-	jr	z,drvmapu1	; do compare
-	ld	de,udevppide	; assume PPIDE
-	cp	$42		; PPIDE?
-	jr	z,drvmapu1	; do compare
-	ld	de,udevsd	; assume SD
-	cp	$43		; SD?
-	jr	z,drvmapu1	; do compare
-	ld	de,udevdsd	; assume DSD
-	cp	$44		; DSD?
-	jr	z,drvmapu1	; do compare
-	jp	errdev		; error, invalid device name
-;
-drvmapu0:
-	; handle RAM/ROM
-	ld	a,(unit)	; get unit specified
-	ld	b,a		; unit num to B
-	ld	c,$45		; UNA func: get disk info
-	ld	de,$9000	; 512 byte buffer *** FIX!!! ***
-	rst	08		; call UNA
-	bit	7,b		; test RAM drive bit
-	ld	de,udevrom	; assume ROM
-	jr	z,drvmapu1	; do compare
-	ld	de,udevram	; assume RAM
-	jr	drvmapu1	; do compare
-	jp	errdev		; error, invalid device name
-;
-drvmapu1:
-	ld	hl,tmpstr	; point HL to specified device name
-	call	strcmp		; compare
-	jp	nz,errdev	; no match, invalid device name
-;
-	; check for valid unit (supported by BIOS)
-	ld	a,(unit)	; get specified unit
-	call	chkdevu		; check validity
-	jp	nz,errdev	; invalid device specified
-;
-	; resolve the CBIOS DPH table entry
-	ld	a,(dstdrv)	; dest drv num to A
-	call	chkdrv		; valid drive?
-	ret	nz		; abort if invalid
-	ld	hl,mapwrk	; point to start of drive map
-	rlca			; multiply by
-	rlca			; ... entry size of 4
-	call	addhl		; adjust HL to point to entry
-	ld	(dstptr),hl	; save it
-;
-	; shove updated unit/slice into the entry
-	ld	a,(unit)	; get specified unit
-	ld	(hl),a		; save it
-	inc	hl		; next byte is slice
-	ld	a,(slice)	; get specified slice
-	ld	(hl),a		; save it
-;
-	; finish up
-	ld	a,(dstdrv)	; get the destination drive
-	call	showone		; show it's new value
-	ld	hl,modcnt	; point to mod count
-	inc	(hl)		; increment it
-	xor	a		; signal success
-	ret
-;
-; Display all active drive letter assignments
-;
-showall:
-	ld	b,16		; 16 drives possible
-	ld	c,0		; map index (drive letter)
-;
-	ld	a,b		; load count
-	or	$FF		; signal no action
-	ret	z		; bail out if zero
-;
-showall1:	; loop
-	ld	a,c		;
-	push	bc		; save loop control
-	call	showass
-	pop	bc		; restore loop control
-	inc	c
-	djnz	showall1
-	or	$FF
-	ret
-;
-; Display drive letter assignment IF it is assigned
-; Drive num in A
-;
-showass:
-;
-	; setup HL to point to desired entry in table
-	ld	c,a		; save incoming drive in C
-	ld	hl,mapwrk	; HL = address of drive map
-	rlca
-	rlca
-	call	addhl		; HL = address of drive map table entry
-	ld	a,(hl)		; get unit value
-	cp	$FF		; compare to unassigned value
-	ld	a,c		; recover original drive num
-	ret	z		; bail out if unassigned drive
-	; fall thru to display drive
-;
-; Display drive letter assignment for the drive num in A
-;
-showone:
-;
-	push	af		; save the incoming drive num
-;
-	call	crlf		; formatting
-;
-	ld	de,indent	; indent
-	call	prtstr		; ... to look nice
-;
-	; setup HL to point to desired entry in table
-	pop	af
-	push	af
-	ld	hl,mapwrk	; HL = address of drive map
-	rlca
-	rlca
-	call	addhl		; HL = address of drive map table entry
-	pop	af
-;
-	; render the drive letter based on table index
-	add	a,'A'		; convert to alpha
-	call	prtchr		; print it
-	ld	a,':'		; conventional color after drive letter
-	call	prtchr		; print it
-	ld	a,'='		; use '=' to represent assignment
-	call 	prtchr		; print it
-;
-	; render the map entry
-	ld	a,(hl)		; load unit
-	cp	$FF		; empty?
-	ret	z		; yes, bypass
-	push	hl		; preserve HL
-	call	prtdev		; print device mnemonic
-	ld	a,':'		; colon for device/unit format
-	call	prtchr		; print it
-	pop	hl		; recover HL
-	inc	hl		; point to slice num
-	ld	a,(hl)		; load slice num
-	call	prtdecb		; print it
-;
-	ret
-;
-; Force BDOS to reset (logout) all drives
-;
-drvrst:
-	ld	c,$0D		; BDOS Reset Disk function
-	call	bdos		; do it
-;
-	ld	c,$25		; BDOS Reset Multiple Drives
-	ld	de,$FFFF	; all drives
-	call	bdos		; do it
-;
-	xor	a		; signal success
-	ret
-;
-; Print device mnemonic based on device number in A
-;
-prtdev:
-	ld	e,a		; stash incoming device num in E
-	ld	a,(unamod)	; get UNA mode flag
-	or	a		; set flags
-	ld	a,e		; put device num back
-	jr	nz,prtdevu	; print device in UNA mode
-	ld	b,$17		; hbios func: diodevice
-	ld	c,a		; unit to C
-	rst	08		; call hbios, D := device, E := unit
-	push	de		; save results
-	ld	a,d		; device to A
-	and	$0F		; mask out undesired bits
-	push	hl		; save HL
-	add	a,a		; multiple A by two for word table
-	ld	hl,devtbl	; point to start of device name table
-	call	addhl		; add A to hl to point to table entry
-	ld	a,(hl)		; dereference hl to loc of device name string
-	inc	hl		;   ...
-	ld	d,(hl)		;   ...
-	ld	e,a		;   ...
-	call	prtstr		; print the device nmemonic
-	pop	hl		; restore HL
-	pop	de		; get device/unit data back
-	ld	a,e		; device id to a
-	call	prtdecb		; print it
-	ret			; done
-;
-prtdevu:
-	push	bc
-	push	de
-	push	hl
-;	
-	; UNA mode version of print device
-	ld	b,a		; B := unit num
-	push	bc		; save for later
-	ld	c,$48		; UNA func: get disk type
-	rst	08		; call UNA
-	ld	a,d		; disk type to A
-	pop	bc		; get unit num back in C
-;
-	; pick string based on disk type
-	cp	$40		; RAM/ROM?
-	jr	z,prtdevu1	; if so, handle it
-	cp	$41		; IDE?
-	ld	de,udevide	; load string
-	jr	z,prtdevu2	; if IDE, print and return
-	cp	$42		; PPIDE?
-	ld	de,udevppide	; load string
-	jr	z,prtdevu2	; if PPIDE, print and return
-	cp	$43		; SD?
-	ld	de,udevsd	; load string
-	jr	z,prtdevu2	; if SD, print and return
-	cp	$44		; DSD?
-	ld	de,udevdsd	; load string
-	jr	z,prtdevu2	; if DSD, print and return
-	ld	de,udevunk	; load string for unknown
-	jr	prtdevu2	; and print it
-;
-prtdevu1:
-	; handle RAM/ROM
-	push	bc		; save unit num
-	ld	c,$45		; UNA func: get disk info
-	ld	de,$9000	; 512 byte buffer *** FIX!!! ***
-	rst	08		; call UNA
-	bit	7,b		; test RAM drive bit
-	pop	bc		; restore unit num
-	ld	de,udevrom	; load string
-	jr	z,prtdevu2	; print and return
-	ld	de,udevram	; load string
-	jr	prtdevu2	; print and return
-;
-prtdevu2:
-	call	prtstr		; print the device nmemonic
-	ld	a,b		; get the unit num back
-	call	prtdecb		; append it
-	pop	hl
-	pop	de
-	pop	bc
-	ret
-;
-; Check that specified drive num is valid
-;
-chkdrv:
-	cp	16		; max of 16 drive letters
-	jp	nc,errdrv	; handle bad drive
-	cp	a		; set Z to signal good
-	ret			; and return
-;
-; Check that the unit value in A is valid
-; according to active BIOS support.
-;
-;
-chkdev:		; HBIOS variant
-	push	af		; save incoming unit
-	ld	b,$F8		; hbios func: sysget
-	ld	c,$10		; sysget subfunc: diocnt
-	rst	08		; call hbios, E := device count
-	pop	af		; restore incoming unit
-	cp	e		; compare to unit count
-	jp	nc,errdev	; if too high, error
-;
-	; get device/unit info
-	ld	b,$17		; hbios func: diodevice
-	ld	c,a		; unit to C
-	rst	08		; call hbios, C := device attributes
-;
-	; check slice support
-	bit	5,c		; high capacity device?
-	jr	z,chkdev1	; if not high cap, check slice val
-	xor	a		; otherwise, signal OK
-	ret
-;
-chkdev1:	; not a hard disk, make sure slice == 0
-	ld	a,(slice)	; get specified slice
-	or	a		; set flags
-	jp	nz,errslc	; invalid slice error
-	xor	a		; signal OK
-	ret
-;
-chkdevu:	; UNA variant
-	ld	b,a		; put in b
-	ld	d,0		; preset type to 0
-	ld	c,$48		; una func: get disk type
-	rst	08		; call una
-	ld	a,d		; resultant device type to a
-	or	a		; set flags
-	jp	z,errdev	; invalid if 0
-;
-	; check for slice support, if required
-	cp	$40		; ram/rom?
-	jr	z,chkdevu1	; yes, check for slice
-;	cp	$??		; floppy?
-;	jr	z,chkdevu1	; yes, check for slice
-	xor	a		; otherwise signal success
-	ret			; and return
-;
-chkdevu1:
-	ld	a,(slice)	; get specified slice
-	or	a		; set flags
-	jp	nz,errslc	; invalid slice error
-	xor	a		; otherwise, signal OK
-	ret			; and return
-;
-; Print character in A without destroying any registers
-;
-prtchr:
-	push	bc		; save registers
-	push	de
-	push	hl
-	ld	e,a		; character to print in E
-	ld	c,$02		; BDOS function to output a character
-	call	bdos		; do it
-	pop	hl		; restore registers
-	pop	de
-	pop	bc
-	ret
-;
-prtdot:
-;
-	; shortcut to print a dot preserving all regs
-	push	af		; save af
-	ld	a,'.'		; load dot char
-	call	prtchr		; print it
-	pop	af		; restore af
-	ret			; done
-;
-; Print a zero terminated string at (HL) without destroying any registers
-;
-prtstr:
-	push	de
-;
-prtstr1:
-	ld	a,(de)		; get next char
-	or	a
-	jr	z,prtstr2
-	call	prtchr
-	inc	de
-	jr	prtstr1
-;
-prtstr2:
-	pop	de		; restore registers
-	ret	
-;
-; Print the value in A in hex without destroying any registers
-;
-prthex:
-	push	af		; save AF
-	push	de		; save DE
-	call	hexascii	; convert value in A to hex chars in DE
-	ld	a,d		; get the high order hex char
-	call	prtchr		; print it
-	ld	a,e		; get the low order hex char
-	call	prtchr		; print it
-	pop	de		; restore DE
-	pop	af		; restore AF
-	ret			; done
-;
-; print the hex word value in bc
-;
-prthexword:
-	push	af
-	ld	a,b
-	call	prthex
-	ld	a,c
-	call	prthex 
-	pop	af
-	ret
-;
-; Convert binary value in A to ascii hex characters in DE
-;
-hexascii:
-	ld	d,a		; save A in D
-	call	hexconv		; convert low nibble of A to hex
-	ld	e,a		; save it in E
-	ld	a,d		; get original value back
-	rlca			; rotate high order nibble to low bits
-	rlca
-	rlca
-	rlca
-	call	hexconv		; convert nibble
-	ld	d,a		; save it in D
-	ret			; done
-;
-; Convert low nibble of A to ascii hex
-;
-hexconv:
-	and	$0F	     	; low nibble only
-	add	a,$90
-	daa	
-	adc	a,$40
-	daa	
-	ret
-;
-; Print value of A or HL in decimal with leading zero suppression
-; Use prtdecb for A or prtdecw for HL
-;
-prtdecb:
-	push	hl
-	ld	h,0
-	ld	l,a
-	call	prtdecw		; print it
-	pop	hl
-	ret
-;
-prtdecw:
-	push	af
-	push	bc
-	push	de
-	push	hl
-	call	prtdec0
-	pop	hl
-	pop	de
-	pop	bc
-	pop	af
-	ret
-;
-prtdec0:
-	ld	e,'0'
-	ld	bc,-10000
-	call	prtdec1
-	ld	bc,-1000
-	call	prtdec1
-	ld	bc,-100
-	call	prtdec1
-	ld	c,-10
-	call	prtdec1
-	ld	e,0
-	ld	c,-1
-prtdec1:
-	ld	a,'0' - 1
-prtdec2:
-	inc	a
-	add	hl,bc
-	jr	c,prtdec2
-	sbc	hl,bc
-	cp	e
-	ret	z
-	ld	e,0
-	call	prtchr
-	ret
-;
-; Print a byte buffer in hex pointed to by DE
-; Register A has size of buffer
-;
-prthexbuf:
-	or	a
-	ret	z		; empty buffer
-;
-	ld	b,a
-prthexbuf1:
-	ld	a,' '
-	call	prtchr
-	ld	a,(de)
-	call	prthex
-	inc	de
-	djnz	prthexbuf1
-	ret
-;
-; Start a new line
-;
-crlf2:
-	call	crlf		; two of them
-crlf:
-	push	af		; preserve AF
-	ld	a,13		; <CR>
-	call	prtchr		; print it
-	ld	a,10		; <LF>
-	call	prtchr		; print it
-	pop	af		; restore AF
-	ret
-;
-; Get the next non-blank character from (HL).
-;
-nonblank:
-	ld	a,(hl)		; load next character
-	or	a		; string ends with a null
-	ret	z		; if null, return pointing to null
-	cp	' '		; check for blank
-	ret	nz		; return if not blank
-	inc	hl		; if blank, increment character pointer
-	jr	nonblank	; and loop
-;
-; Check character at (DE) for delimiter.
-;
-delim:	or	a
-	ret	z
-	cp	' '		; blank
-	ret	z
-	jr	c,delim1	; handle control characters
-	cp	'='		; equal
-	ret	z
-	cp	'_'		; underscore
-	ret	z
-	cp	'.'		; period
-	ret	z
-	cp	':'		; colon
-	ret	z
-	cp	$3B		; semicolon
-	ret	z
-	cp	'<'		; less than
-	ret	z
-	cp	'>'		; greater than
-	ret
-delim1:
-	; treat control chars as delimiters
-	xor	a		; set Z
-	ret			; return
-;
-; Get alpha chars and save in tmpstr
-; return with terminating char in A and flags set
-; return with num chars in B
-;
-getalpha:
-;
-	ld	de,tmpstr	; location to save chars
-	ld	b,0		; length counter
-;
-getalpha1:
-	ld	a,(hl)		; get active char
-	cp	'A'		; check for start of alpha range
-	jr	c,getalpha2	; not alpha, get out
-	cp	'Z' + 1		; check for end of alpha range
-	jr	nc,getalpha2	; not alpha, get out
-	; handle alpha char
-	inc	hl		; increment buffer ptr
-	ld	(de),a		; save it
-	inc	de		; inc string pointer
-	inc	b		; inc string length
-	ld	a,b		; put length in A
-	cp	8		; max length?
-	jr	z,getalpha2	; if max, get out
-	jr	getalpha1	; and loop
-;
-getalpha2:	; non-alpha, clean up and return
-	xor	a		; clear accum
-	ld	(de),a		; terminate string
-	ld	a,(hl)		; recover terminating char
-	or	a		; set flags
-	ret			; and done
-;
-; Get numeric chars and convert to number returned in A
-; Carry flag set on overflow
-;
-getnum:
-	ld	c,0		; C is working register
-getnum1:
-	ld	a,(hl)		; get the active char
-	cp	'0'		; compare to ascii '0'
-	jr	c,getnum2	; abort if below
-	cp	'9' + 1		; compare to ascii '9'
-	jr	nc,getnum2	; abort if above\
-;
-	; valid digit, add new digit to C
-	ld	a,c		; get working value to A
-	rlca			; multiply by 10
-	ret	c		; overflow, return with carry set
-	rlca			; ...
-	ret	c		; overflow, return with carry set
-	add	a,c		; ...
-	ret	c		; overflow, return with carry set
-	rlca			; ...
-	ret	c		; overflow, return with carry set
-	ld	c,a		; back to C
-	ld	a,(hl)		; get new digit
-	sub	'0'		; make binary
-	add	a,c		; add in working value
-	ret	c		; overflow, return with carry set
-	ld	c,a		; back to C
-;
-	inc	hl		; bump to next char
-	jr	getnum1		; loop
-;
-getnum2:	; return result
-	ld	a,c		; return result in A
-	or	a		; with flags set, CF is cleared
-	ret
-;
-; Compare null terminated strings at HL & DE
-; If equal return with Z set, else NZ
-;
-strcmp:
-;
-	ld	a,(de)		; get current source char
-	cp	(hl)		; compare to current dest char
-	ret	nz		; compare failed, return with NZ
-	or	a		; set flags
-	ret	z		; end of string, match, return with Z set
-	inc	de		; point to next char in source
-	inc	hl		; point to next char in dest
-	jr	strcmp		; loop till done
-;
-; Invoke CBIOS function
-; The CBIOS function offset must be stored in the byte
-; following the call instruction.  ex:
-;	call	cbios
-;	.db	$0C		; offset of CONOUT CBIOS function
-;
-cbios:
-	ex	(sp),hl
-	ld	a,(hl)		; get the function offset
-	inc	hl		; point past value following call instruction
-	ex	(sp),hl		; put address back at top of stack and recover HL
-	ld	hl,(bioloc)	; address of CBIOS function table to HL
-	call	addhl		; determine specific function address
-	jp	(hl)		; invoke CBIOS
-;
-; Routine to call CPM3 BIOS routines via BDOS
-; function 50.
-;
-xbios:
-	ld	(biofnc),a	; set BIOS function
-	ld	c,50		; direct BIOS call function
-	ld	(dereg),de	; set DE parm
-	ld	de,biospb	; BIOS parameter block
-	jp	bdos		; invoke BDOS
-;
-biospb:
-biofnc	.db	0		; BIOS function
-areg	.db	0		; A register
-bcreg	.dw	0		; BC register
-dereg	.dw	0		; DE register
-hlreg	.dw	0		; HL register
-;
-; Add the value in A to HL (HL := HL + A)
-;
-addhl:
-	add	a,l		; A := A + L
-	ld	l,a		; Put result back in L
-	ret	nc		; if no carry, we are done
-	inc	h		; if carry, increment H
-	ret			; and return
-;
-; Jump indirect to address in HL
-;
-jphl:
-	jp	(hl)
-;
-; Errors
-;
-erruse:	; command usage error (syntax)
-	ld	de,msguse
-	jr	err
-;
-errprm:	; command parameter error (syntax)
-	ld	de,msgprm
-	jr	err
-;
-errinv:	; invalid CBIOS, zp signature not found
-	ld	de,msginv
-	jr	err
-;
-errver:	; CBIOS version is not as expected
-	ld	de,msgver
-	jr	err
-;
-errdrv:	; Invalid drive letter specified
-	push	af
-	call	crlf
-	ld	de,msgdrv1
-	call	prtstr
-	pop	af
-	add	a,'A'
-	call	prtchr
-	ld	de,msgdrv2
-	jr	err1
-;
-errswp:	; invalid drive swap request
-	ld	de,msgswp
-	jr	err
-;
-errdev:	; invalid device name
-	ld	de,msgdev
-	jr	err
-;
-errslc:	; invalid slice
-	ld	de,msgslc
-	jr	err
-;
-errtyp:	; invalid device assignment request (not a hard disk device type)
-	ld	de,msgtyp
-	jr	err
-;
-errnum:	; invalid number parsed, overflow
-	ld	de,msgnum
-	jr	err
-;
-errint:	; DPH table integrity error (multiple drives ref one filesystem)
-	ld	de,msgint
-	jr	err
-;
-errnoa:	; No A: drive assignment
-	ld	de,msgnoa
-	jr	err
-;
-errovf:	; CBIOS disk buffer overflow
-	ld	de,msgovf
-	jr	err
-;
-errdos:	; handle BDOS errors
-	push	af		; save return code
-	call	crlf		; newline
-	ld	de,msgdos	; load
-	call	prtstr		; and print error string
-	pop	af		; recover return code
-	call	prthex		; print error code
-	jr	err2
-;
-err:	; print error string and return error signal
-	call	crlf2		; print double newline
-;
-err1:	; without the leading crlf
-	call	prtstr		; print error string
-;
-err2:	; without the string
-;	call	crlf		; print newline
-	or	$FF		; signal error
-	ret			; done
-;
-;===============================================================================
-; Storage Section
-;===============================================================================
-;
-;
-bioloc	.dw	0		; CBIOS starting address
-bioend	.dw	0		; CBIOS ending address
-biosiz	.dw	0		; CBIOS size (in bytes)
-maploc	.dw	0		; location of CBIOS drive map table
-dpbloc	.dw	0		; location of CBIOS DPB map table
-cpmver	.dw	0		; CP/M version
-drvtbl	.dw	0		; CP/M 3 drive table address
-dphadr	.dw	0		; CP/M 3 working value for DPH
-;
-drives:
-dstdrv	.db	0		; destination drive
-srcdrv	.db	0		; source drive
-device	.db	0		; source device
-unit	.db	0		; source unit
-slice	.db	0		; source slice
-;
-unamod	.db	0		; $FF indicates UNA UBIOS active
-modcnt	.db	0		; count of drive map modifications
-;
-srcptr	.dw	0		; source pointer for copy
-dstptr	.dw	0		; destination pointer for copy
-tmpent	.fill	4,0		; space to save a table entry
-tmpstr	.fill	9,0		; temporary string of up to 8 chars, zero term
-;
-heaptop	.dw	0		; current address of top of heap memory
-heaplim	.dw	0		; heap limit address
-;
-dirbuf	.dw	0		; directory buffer location
-;
-scbpb:	; BDOS SCB get/set parm block
-scboff	.db	$54		; media open door flag
-scbop	.db	$FF		; set a byte
-scbval	.dw	$FF		; value to set
-;
-mapwrk	.fill	(4 * 16),$FF	; working copy of drive map
-;
-devtbl:				; device table
-	.dw	dev00, dev01, dev02, dev03
-	.dw	dev04, dev05, dev06, dev07
-	.dw	dev08, dev09, dev10, dev11
-	.dw	dev12, dev13, dev14, dev15
-;
-devunk	.db	"?",0
-dev00	.db	"MD",0
-dev01	.db	"FD",0
-dev02	.db	"RAMF",0
-dev03	.db	"IDE",0
-dev04	.db	"ATAPI",0
-dev05	.db	"PPIDE",0
-dev06	.db	"SD",0
-dev07	.db	"PRPSD",0
-dev08	.db	"PPPSD",0
-dev09	.db	"HDSK",0
-dev10	.db	"PPA",0
-dev11	.db	"IMM",0
-dev12	.db	"SYQ",0
-dev13	.db	"CHUSB",0
-dev14	.db	"CHSD",0
-dev15	.equ	devunk
-;
-devcnt	.equ	10		; 10 devices defined
-;
-udevram		.db	"RAM",0
-udevrom		.db	"ROM",0
-udevide		.db	"IDE",0
-udevppide	.db	"PPIDE",0
-udevsd		.db	"SD",0
-udevdsd		.db	"DSD",0
-udevunk		.db	"UNK",0
-;
-stksav	.dw	0		; stack pointer saved at start
-xstksav	.dw	0		; temp stack save for error recovery
-	.fill	stksiz,0	; stack
-stack	.equ	$		; stack top
-;
-; Messages
-;
-indent	.db	"   ",0
-msgban1	.db	"ASSIGN v1.8 for RomWBW CP/M ",0
-msg22	.db	"2.2",0
-msg3	.db	"3",0
-msbban2	.db	", 13-Oct-2023",0
-msghb	.db	" (HBIOS Mode)",0
-msgub	.db	" (UBIOS Mode)",0
-msgban3	.db	"Copyright 2023, Wayne Warthen, GNU GPL v3",0
-msguse	.db	"Usage: ASSIGN D:[=[{D:|<device>[<unitnum>]:[<slicenum>]}]][,...]",13,10
-	.db	"  ex. ASSIGN           (display all active assignments)",13,10
-	.db	"      ASSIGN /?        (display version and usage)",13,10
-	.db	"      ASSIGN /L        (display all possible devices)",13,10
-	.db	"      ASSIGN C:=D:     (swaps C: and D:)",13,10
-	.db	"      ASSIGN C:=FD0:   (assign C: to floppy unit 0)",13,10
-	.db	"      ASSIGN C:=IDE0:1 (assign C: to IDE unit0, slice 1)",13,10
-	.db	"      ASSIGN C:=       (unassign C:)",0
-msgprm	.db	"Parameter error (ASSIGN /? for usage)",0
-msginv	.db	"Unexpected CBIOS (signature missing)",0
-msgver	.db	"Unexpected CBIOS version",0
-msgdrv1	.db	"Invalid drive letter (",0
-msgdrv2	.db	":)",0
-msgswp	.db	"Invalid drive swap request",0
-msgdev	.db	"Invalid device name (ASSIGN /L for device list)",0
-msgslc	.db	"Specified device does not support slices",0
-msgnum	.db	"Unit or slice number invalid",0
-msgovf	.db	"Disk buffer exceeded in CBIOS, aborted",0
-msgtyp	.db	"Only hard drive devices can be reassigned",0
-msgint	.db	"Multiple drive letters reference one filesystem, aborting!",0
-msgnoa	.db	"Drive A: is unassigned, aborting!",0
-msgdos	.db	"DOS error, return code=0x",0
-msgmem	.db	" Disk Buffer Bytes Free",0
-;
-modsize	.equ	$ - start
-;
-	.end
diff --git a/Source/Apps/assign/Build.cmd b/Source/Apps/assign/Build.cmd
new file mode 100644
index 00000000..25dd7385
--- /dev/null
+++ b/Source/Apps/assign/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF assign.asm assign.com assign.lst || exit /b
+
+copy /Y assign.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/assign/Clean.cmd b/Source/Apps/assign/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/assign/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/assign/Makefile b/Source/Apps/assign/Makefile
new file mode 100644
index 00000000..597d0cee
--- /dev/null
+++ b/Source/Apps/assign/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = assign.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/assign/assign.asm b/Source/Apps/assign/assign.asm
new file mode 100644
index 00000000..8ba6f9f5
--- /dev/null
+++ b/Source/Apps/assign/assign.asm
@@ -0,0 +1,1972 @@
+;===============================================================================
+; ASSIGN - Display and/or modify drive letter assignments
+;
+;===============================================================================
+;
+;	Author:  Wayne Warthen (wwarthen@gmail.com)
+;_______________________________________________________________________________
+;
+; Usage:
+;   ASSIGN D:[=[{D:|<device>[<unitnum>]:[<slicenum>]}]][,...]
+;     ex: ASSIGN		(display all active drive assignments)
+;         ASSIGN /?		(display version and usage)
+;         ASSIGN /L		(display all possible devices)
+;         ASSIGN C:=D:		(swaps C: and D:)
+;         ASSIGN C:=FD0:	(assign C: to floppy unit 0)
+;         ASSIGN C:=IDE0:1	(assign C: to IDE unit0, slice 1)
+;         ASSIGN C:=		(unassign C:)
+;_______________________________________________________________________________
+;
+; Change Log:
+;   2016-03-21 [WBW] Updated for HBIOS 2.8
+;   2016-04-08 [WBW] Determine key memory addresses dynamically
+;   2019-08-07 [WBW] Fixed DPB selection error
+;   2019-11-17 [WBW] Added preliminary CP/M 3 support
+;   2019-12-24 [WBW] Fixed location of BIOS save area
+;   2020-04-29 [WBW] Updated for larger DPH (16 -> 20 bytes)
+;   2020-05-06 [WBW] Add patch level to version compare
+;   2020-05-10 [WBW] Set media change flag in XDPH for CP/M 3
+;   2020-05-12 [WBW] Back out media change flag
+;   2021-12-06 [WBW] Fix inverted ROM/RAM DPB mapping in buffer alloc
+;   2022-02-28 [WBW] Use HBIOS to swap banks under CP/M 3
+;                    Use CPM3 BDOS direct BIOS call to get DRVTBL adr
+;   2023-06-19 [WBW] Update for revised DIODEVICE API
+;   2023-09-19 [WBW] Added CHUSB & CHSD device support
+;   2023-10-13 [WBW] Fixed DPH creation to select correct DPB
+;_______________________________________________________________________________
+;
+; ToDo:
+;  1) ASSIGN C: causes drive map to be reinstalled unnecessarily
+;_______________________________________________________________________________
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+stksiz	.equ	$40		; Working stack size
+;
+restart	.equ	$0000		; CP/M restart vector
+bdos	.equ	$0005		; BDOS invocation vector
+bnksel	.equ	$FFF3		; HBIOS bank select vector
+;
+stamp	.equ	$40		; loc of RomWBW CBIOS zero page stamp
+;
+#include "../../ver.inc"
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+	.org	$100
+;
+	; relocate to high memory
+	ld	hl,image
+	ld	de,$8000
+	ld	bc,modsize
+	ldir
+	jp	start
+;
+image	.equ	$
+;
+	.org	$8000
+;
+start:
+;
+	; setup stack (save old value)
+	ld	(stksav),sp	; save stack
+	ld	sp,stack	; set new stack
+;
+	; initialization
+	call	init		; initialize
+	jr	nz,exit		; abort if init fails
+;
+	; do the real work 
+	call	process		; parse and process command line
+	jr	nz,exit		; done if error or no action
+;
+	; perform table integrity check
+	call	valid
+	jr	nz,exit
+;
+	; install the new drive map if changes were made
+	ld	a,(modcnt)	; get the mod count
+	or	a		; set flags
+	call	nz,install	; install new drive map
+;
+exit:	; clean up and return to command processor
+	call	crlf		; formatting
+	ld	sp,(stksav)	; restore stack
+	jp	restart		; return to CP/M via restart
+	ret			; return to CP/M w/o restart
+;
+; Initialization
+;
+init:
+;
+	; locate start of cbios (function jump table)
+	ld	hl,(restart+1)	; load address of CP/M restart vector
+	ld	de,-3		; adjustment for start of table
+	add	hl,de		; HL now has start of table
+	ld	(bioloc),hl	; save it
+;
+	; get CP/M version and save it
+	ld	c,$0C		; function number
+	call	bdos		; do it, HL := version
+	ld	(cpmver),hl	; save it
+	;push	hl		; *debug*
+	;pop	bc		; *debug*
+	;call	prthexword	; *debug*
+	;ld	a,l		; low byte
+	;cp	$30		; CP/M 3.0?
+;
+	; get location of config data and verify integrity
+	ld	hl,stamp	; HL := adr or RomWBW zero page stamp
+	ld	a,(hl)		; get first byte of RomWBW marker
+	cp	'W'		; match?
+	jp	nz,errinv	; abort with invalid config block
+	inc	hl		; next byte (marker byte 2)
+	ld	a,(hl)		; load it
+	cp	~'W'		; match?
+	jp	nz,errinv	; abort with invalid config block
+	inc	hl		; next byte (major/minor version)
+	ld	a,(hl)		; load it
+	cp	RMJ << 4 | RMN	; match?
+	jp	nz,errver	; abort with invalid os version
+	inc	hl		; next byte (update/patch)
+	ld	a,(hl)		; load it
+	and	$F0		; eliminate patch num
+	cp	RUP << 4	; match?
+	jp	nz,errver	; abort with invalid os version
+	inc	hl		; bump past version info
+;
+	; dereference HL to point to CBIOS extension data
+	ld	a,(hl)		; dereference HL
+	inc	hl		;   ... to point to
+	ld	h,(hl)		;   ... ROMWBW config data block
+	ld	l,a		;   ... in CBIOS
+;
+	; skip device map address
+	inc	hl		; bump two bytes
+	inc	hl		; ... past device map address entry
+;
+	; get location of drive map
+	ld	e,(hl)		; dereference HL
+	inc	hl		; ... into DE to get
+	ld	d,(hl)		; ... drive map pointer
+	inc	hl		; skip past drive map pointer
+	ld	(maploc),de	; and save it
+;
+	; get location of dpbmap
+	ld	e,(hl)		; dereference HL
+	inc	hl		; ... into DE to get
+	ld	d,(hl)		; ... DPB map pointer
+	ld	(dpbloc),de	; and save it	
+;
+	; test for CP/M 3 and branch if so
+	ld	a,(cpmver)	; low byte of cpm version
+	cp	$30		; CP/M 3.0?
+	jp	nc,initcpm3	; handle CP/M 3.0 or greater
+;
+	; make a local working copy of the drive map
+	ld	hl,(maploc)	; copy from CBIOS drive map
+	ld	de,mapwrk	; copy to working drive map
+	dec	hl		; point to entry count
+	ld	a,(hl)		; get entry count
+	inc	hl		; restore hl pointer to drive map start
+	add	a,a		; multiple a by
+	add	a,a		; ... size of entries (4 bytes each)
+	ld	c,a		; set BC := 0A
+	ld 	b,0		; ... so BC is length to copy
+	ldir			; do the copy
+;
+	; determine end of CBIOS (assume HBIOS for now)
+	ld	hl,($FFFE)	; get proxy start address
+	ld	(bioend),hl	; save as CBIOS end address
+;
+	; check for UNA (UBIOS)
+	ld	a,($FFFD)	; fixed location of UNA API vector
+	cp	$C3		; jp instruction?
+	jr	nz,initx	; if not, not UNA
+	ld	hl,($FFFE)	; get jp address
+	ld	a,(hl)		; get byte at target address
+	cp	$FD		; first byte of UNA push ix instruction
+	jr	nz,initx	; if not, not UNA
+	inc	hl		; point to next byte
+	ld	a,(hl)		; get next byte
+	cp	$E5		; second byte of UNA push ix instruction
+	jr	nz,initx	; if not, not UNA
+	ld	hl,unamod	; point to UNA mode flag
+	ld	(hl),$FF	; set UNA mode flag
+	ld	c,$F1		; UNA func: Get HMA
+	rst	08		; call UNA, HL := UNA proxy start address
+	ld	(bioend),hl	; save as CBIOS end address
+;
+initx:
+	; compute size of CBIOS
+	ld	hl,(bioend)	; HL := end address
+	ld	de,(bioloc)	; DE := starting address
+	xor	a		; clear carry
+	sbc	hl,de		; subtract to get size in HL
+	ld	(biosiz),hl	; and save it
+;
+	; establish heap limit
+	ld	hl,(bioend)	; HL := end of CBIOS address
+	ld	de,-$40		; allow 40 bytes for CBIOS stack
+	add	hl,de		; adjust
+	ld	(heaplim),hl	; save it
+;
+#if 0
+	ld	a,' '
+	call	crlf
+	ld	bc,(bioloc)
+	call	prthexword
+	call	prtchr
+	ld	bc,(bioend)
+	call	prthexword
+	call	prtchr
+	ld	bc,(maploc)
+	call	prthexword
+	call	prtchr
+	ld	bc,(heaplim)
+	call	prthexword
+	
+#endif
+;
+ 	; return success
+	xor	a		; signal success
+	ret			; return
+;
+; CP/M 3 initialization
+;
+initcpm3:
+	ld	a,22		; XBIOS DRVTBL function
+	call	xbios		; Invoke XBIOS
+	ld	(drvtbl),hl	; save DRVTBL address
+;
+; The CP/M 3 drvtbl is in common memory, but the XDPHs are not.
+; So, here we temporarily swap the bank to the CP/M 3 system
+; bank.  We cannot use the CP/M Direct BIOS call because it
+; explicitly blocks use of SELMEM, so we are forced to use
+; HBIOS call.  The CP/M 3 system bank is always the HBIOS
+; user bank.
+;
+	; switch to sysbnk
+	ld	a,($FFE0)	; get current bank
+	push	af		; save it
+	ld	bc,$F8F2	; HBIOS Get Bank Info
+	rst	08		; call HBIOS, E=User Bank
+	ld	a,e		; HBIOS User Bank
+	call	bnksel		; HBIOS BNKSEL
+;
+	; copy CP/M 3 drvtbl to drvmap working copy
+	ld	hl,(drvtbl)	; get drive table in HL
+	ld	de,mapwrk	; DE := working drive map
+	ld	b,16
+initc2:
+	push	hl		; save drvtbl entry adr
+	ld	a,(hl)		; deref HL to get DPH adr
+	inc	hl		; ...
+	ld	h,(hl)		; ...
+	ld	l,a		; ...
+	ld	a,l		; check for
+	or	h		; ... zero
+	jr	nz,initc3	; if not zero, copy entry
+	inc	de		; ... else bump past unit field
+	jr	initc4		; ... and continue without copying
+initc3:
+	dec	hl		; back up to
+	dec	hl		; ... unit
+	ld	a,(hl)		; get unit from drvtbl
+	ld	(de),a		; save unit to drvmap
+	inc	hl		; bump to slice
+	inc	de		; bump to slice
+	ld	a,(hl)		; get slice from drvtbl
+	ld	(de),a		; save slice to drvmap
+initc4:	
+	inc	de		; bump past slice
+	inc	de		; skip
+	inc	de		; ... dph
+	pop	hl		; back to drvtbl entry
+	inc	hl		; bump to
+	inc	hl		; ... next drvtbl entry
+	djnz	initc2
+;
+	; switch back to tpabnk
+	pop	af		; recover prev bank
+	call	bnksel		; HBIOS BNKSEL
+;
+ 	; return success
+	xor	a		; signal success
+	ret			; return
+;
+; Process command line
+;
+process:
+;
+	; look for start of parms
+	ld	hl,$81		; point to start of parm area (past len byte)
+	call	nonblank	; skip to next non-blank char
+	jp	z,showall	; no parms, show all active assignments
+;
+	; check for special option, introduced by a "/"
+	cp	'/'		; start of usage request?
+	jp	z,option	; yes, handle option
+;
+process0:
+;
+	sub	'A'		; make it binary
+	ld	(dstdrv),a	; save it as destination drive
+	inc	hl		; next char
+	ld	a,(hl)		; get it
+	cp	':'		; is it ':' as expected?
+	jp	nz,errprm	; error if not
+	inc	hl		; skip ':'
+	call	nonblank	; skip possible blanks
+	cp	'='		; proper delimiter?
+	jr	z,process1	; yes, continue
+
+	ld	de,drvshow	; show the drive
+	ld	a,(dstdrv)	; load the drive
+	jr	process4	; do it
+;
+process1:	; handle other side of '='
+;
+	inc	hl		; skip '='
+	call	nonblank	; skip blanks as needed
+	ld	de,drvdel	; assume a drive delete
+	jp	z,process4	; continue to processing
+	cp	','		; comma?
+	jp	z,process4	; continue to processing
+	call	getalpha	; gobble all alpha characters
+	dec	b		; decrement num chars parsed
+	jr	nz,process2	; more than 1 char, handle as device name
+;
+	; handle as drive swap
+	cp	':'		; check for mandatory trailing colon
+	jp	nz,errprm	; handle unexpected character
+	inc	hl		; skip ':'
+	ld	a,(tmpstr)	; get the drive letter
+	sub	'A'		; make it binary
+	ld	(srcdrv),a	; assume it is a src drv and save it
+	ld	de,drvswap	; put routine to call in DE
+	jr	process4	; and continue
+;
+process2:	; handle a device/slice assignment
+;
+	call	getnum		; get number from buffer
+	jp	c,errnum	; abort on overflow
+	cp	16		; compare to max
+	jp	nc,errnum	; abort if too high
+	ld	(unit),a	; save it as unit num
+	ld	a,(hl)		; get terminating char
+	cp	':'		; check for mandatory colon
+	jp	nz,errprm	; handle unexpected character
+	inc	hl		; skip past colon
+	call	getnum		; get number from buffer
+	jp	c,errnum	; abort on overflow
+	ld	(slice),a	; save it as slice num
+	ld	de,drvmap	; put routine to call in DE
+	jr	process4	; and continue
+;
+process4:	; check for terminating null or comma
+;
+	call	nonblank	; skip possible blanks
+	jr	z,process5	; null terminator OK
+	cp	','		; check for comma
+	jr	z,process5	; also OK
+	jp	errprm		; otherwise parm error
+;
+process5:	; do the processing
+;
+	ex	de,hl		; move routine to call to HL
+	push	de		; save command string pointer
+	call	jphl		; do the work
+	pop	hl		; recover command string pointer
+	ret	nz		; abort on error
+	ld	a,(hl)		; get the current cmd string char
+	or	a		; set flags
+	ret	z		; if null, we are done
+	inc	hl		; otherwise, skip comma
+	call	nonblank	; and possible blanks after comma
+	ret	z		; get out if nothing more
+	jp	process0	; we have more work, loop
+;
+; Handle special options
+;
+option:
+;
+	inc	hl		; next char
+	ld	a,(hl)		; get it
+	cp	'?'		; is it a '?' as expected?
+	jp	z,usage		; yes, display usage
+	cp	'L'		; is it a 'L', display device list?
+	jp	z,devlist	; yes, display device list
+	jp	errprm		; anything else is an error
+;
+usage:
+;
+	call	crlf		; formatting
+	ld	de,msgban1	; point to version message part 1
+	call	prtstr		; print it
+	ld	de,msg22	; assume CP/M 2.2
+	ld	a,(cpmver)	; low byte of ver
+	cp	$30		; CP/M 3.0?
+	jp	c,usage1	; if not, jump ahead
+	ld	de,msg3		; CP/M 3
+usage1:
+	call	prtstr
+	ld	de,msbban2	; next portion of banner
+	call	prtstr
+	ld	a,(unamod)	; get UNA flag
+	or	a		; set flags
+	ld	de,msghb	; point to HBIOS mode message
+	call	z,prtstr	; if not UNA, say so
+	ld	de,msgub	; point to UBIOS mode message
+	call	nz,prtstr	; if UNA, say so
+	call	crlf		; formatting
+	ld	de,msgban3	; point to version message part 2
+	call	prtstr		; print it
+	call	crlf2		; blank line
+	ld	de,msguse	; point to usage message
+	call	prtstr		; print it
+	or	$FF		; signal no action performed
+	ret			; and return
+;
+devlist:
+;
+	ld	a,(unamod)	; get UNA mode flag
+	or	a		; set flags
+	jr	nz,devlstu	; do UNA mode dev list
+;
+	ld	b,$F8		; hbios func: sysget
+	ld	c,$10		; sysget subfunc: diocnt
+	rst	08		; call hbios, E := device count 
+	ld	b,e		; use device count for loop count
+	ld	c,0		; use C for device index
+devlist1:
+	call	crlf		; formatting
+	ld	de,indent	; indent
+	call	prtstr		; ... to look nice
+	push	bc		; preserve loop control
+	ld	a,c		; device to A
+	call	prtdev		; print device mnemonic
+	ld	a,':'		; colon for device/unit format
+	call	prtchr		; print it
+	pop	bc		; restore loop control
+	inc	c		; next device index
+	djnz	devlist1	; loop as needed
+	or	$FF		; signal no action taken
+	ret			; done
+;
+devlstu:
+	; UNA mode device list
+	ld	b,0		; use unit 0 to get count
+	ld	c,$48		; una func: get disk type
+	ld	l,0		; preset unit count to zero
+	rst	08		; call una, b is assumed to be untouched!!!
+	ld	a,l		; unit count to a
+	or	a		; set flags
+	ret	z		; no units, return
+	ld	b,l		; unit count to b
+	ld	c,0		; init unit index
+devlstu1:
+	call	crlf		; formatting
+	ld	de,indent	; indent
+	call	prtstr		; ... to look nice
+	push	bc		; save loop control vars
+	ld	a,c		; put unit num in A
+	push	af		; save it
+	call	prtdevu		; print the device name
+	pop	af		; restore unit num
+	call	prtdecb		; print unit num
+	ld	a,':'		; colon delimiter
+	call	prtchr		; print it
+	pop	bc		; restore loop control
+	inc	c		; next drive
+	djnz	devlstu1	; loop as needed
+	ret			; return
+;
+; Install the new drive map into CBIOS
+;
+install:
+	ld	a,(cpmver)	; low byte of CP/M version
+	cp	$30		; CP/M 3.0?
+	jp	nc,instcpm3	; handle CP/M 3.0 or greater
+;
+	; capture CBIOS snapshot and stack frame for error recovery
+	ld	hl,(bioloc)	; start of CBIOS
+	ld	de,$1000	; save it here
+	ld	bc,(biosiz)	; size of CBIOS
+	ldir			; save it
+	ld	(xstksav),sp	; save stack frame
+	; clear CBIOS buffer area
+	ld	hl,(maploc)	; start fill at drive map
+	ld	a,(bioend + 1)	; msb of CBIOS end address to A
+install1:
+	ld	e,0		; fill with null
+	ld	(hl),e		; fill next byte
+	inc	hl		; point to next byte
+	cp	h		; is H == msb of CBIOS end address?
+	jr	nz,install1	; if not, loop
+;
+	; determine the drive map entry count
+	ld	hl,mapwrk
+	ld	c,0
+	ld	b,16
+install2:
+	ld	a,$FF
+	cp	(hl)
+	jr	z,install3
+	ld	e,c		; remember high water mark
+install3:
+	inc	hl
+	inc	hl
+	inc	hl
+	inc	hl
+	inc	c
+	djnz	install2
+	inc	e		; convert from max value to count
+;
+	; record entry count in CBIOS
+	ld	hl,(maploc)	; start of map
+	dec	hl		; backup to entry count
+	ld	(hl),e		; record count
+;
+	; copy map
+	ld	a,e		; A := entry count
+	add	a,a		; multiply by size
+	add	a,a		; ... of entry (4 bytes)
+	ld	c,a		; put in C for count
+	ld	b,0		; msb of count is always zero
+	ld	hl,mapwrk	; source of copy is work map
+	ld	de,(maploc)	; target is CBIOS map loc
+	ldir			; do it
+;
+	; set start of memory allocation heap
+	ld	(heaptop),de	; DE has next byte available
+;
+	; allocate directory buffer
+	ld	hl,128		; size of directory buffer
+	call	alloc		; allocate the space
+	jp	c,instovf	; handle overflow error
+	ld	(dirbuf),hl	; ... and save in dirbuf
+;
+dph_init:
+;
+; iterate through drive map to build dph entries dynamically
+;
+	; setup for dph build loop
+	ld	hl,(maploc)	; point to drive map
+	dec	hl		; backup to entry count
+	ld	b,(hl)		; loop drvcnt times
+	ld	c,0		; drive index
+	inc	hl		; bump to start of drive map
+;
+dph_init1:
+	; no DPH if drive not assigned
+	ld	a,(hl)
+	cp	$FF
+	jr	nz,dph_init2
+	ld	de,0		; not assigned, use DPH pointer of zero
+	jr	dph_init3
+;
+dph_init2:
+	ld	a,(hl)		; unit to A
+	push	bc		; save loop control
+	push	hl		; save drive map pointer
+	;ld	hl,16		; size of a DPH structure
+	ld	hl,20		; size of a DPH structure
+	call	alloc		; allocate space for dph
+	jp	c,instovf	; handle overflow error
+	push	hl		; save DPH location
+	push	hl		; move DPH location
+	pop	de		; ... to DE
+	call	makdph		; make the DPH, unit in A from above
+	pop	de		; restore DPH pointer to DE
+	pop	hl		; restore drive map pointer to HL
+	pop	bc		; restore loop control
+;
+dph_init3:
+	inc	hl		; bump to slice loc
+	inc	hl		; bump to DPH pointer lsb
+	ld	(hl),e		; save lsb
+	inc	hl		; bump to DPH pointer msb
+	ld	(hl),d		; save msb
+	inc	hl		; bump to start of next drive map entry
+	inc	c		; next drive index
+	djnz	dph_init1	; loop as needed
+;
+	; display free memory
+	call	crlf2
+	ld	de,indent
+	call	prtstr
+	ld	hl,(heaplim)	; subtract high water
+	ld	de,(heaptop)	; ... from top of cbios
+	or	a		; ... with cf clear
+	sbc	hl,de		; ... so hl gets bytes free
+	call	prtdecw		; print it
+	ld	de,msgmem	; add description
+	call	prtstr		; and print it
+;
+	call	drvrst		; perform BDOS drive reset
+;	
+	xor	a		; signal success
+	ret			; done
+;
+makdph:
+;
+; make a dph at address in de for dev/unit in a
+;
+	push	de		; save incoming dph address
+;
+	ld	c,a		; save incoming dev/unit
+	ld	a,(unamod)	; get UNA mode flag
+	or	a		; set flags
+	ld	a,c		; restore incoming dev/unit
+	jr	nz,makdphuna	; do UNA mode
+	jr	makdphwbw	; do WBW mode
+;
+makdphuna:	; determine appropriate dpb (WBW mode)
+	ld	b,a		; unit num to b
+	ld	c,$48		; una func: get disk type
+	rst	08		; call una
+	ld	a,d		; move disk type to a
+;
+	; derive dpb address based on disk type
+	cp	$40		; ram/rom drive?
+	jr	z,makdphuna1	; handle ram/rom drive if so
+;	cp	$??		; floppy drive?
+;	jr	z,xxxxx		; handle floppy
+	ld	e,4		; assume hard disk
+	jr	makdph0		; continue
+;
+makdphuna1:	; handle ram/rom
+	ld	c,$45		; una func: get disk info
+	ld	de,$9000	; 512 byte buffer *** fix!!! ***
+	rst	08		; call una
+	bit	7,b		; test ram drive bit
+	ld	e,1		; assume rom
+	jr	z,makdph0	; not set, rom drive, continue
+	ld	e,2		; otherwise, must be ram drive
+	jr	makdph0		; continue
+;
+makdphwbw:	; determine appropriate dpb (WBW mode, unit number in A)
+;
+	ld	c,a		; unit number to C
+	ld	b,$17		; HBIOS: Report Device Info
+	rst	08		; call HBIOS, return w/ device type in D, physical unit in E
+	ld	a,d		; device type to A
+	cp	$00		; ram/rom?
+	jr	nz,makdph00	; if not, skip ahead to other types
+	ld	a,e		; physical unit number to A
+	ld	e,1		; assume rom
+	cp	$01		; rom?
+	jr	z,makdph0	; yes, jump ahead
+	ld	e,2		; otherwise ram
+	jr	makdph0		; jump ahead
+makdph00:	
+	ld	e,6		; assume floppy
+	cp	$01		; floppy?
+	jr	z,makdph0	; yes, jump ahead
+	ld	e,3		; assume ram floppy
+	cp	$02		; ram floppy?
+	jr	z,makdph0	; yes, jump ahead
+	ld	e,4		; everything else is assumed to be hard disk
+	jr	makdph0		; yes, jump ahead
+;
+makdph0:
+	ld	hl,(dpbloc)	; point to start of dpb table in CBIOS
+	ld	a,e		; get index of target DPB to A
+	add	a,a		; each entry is two bytes
+	call	addhl		; add offset for desired DPB address
+	ld	e,(hl)		; dereference HL
+	inc	hl		; into DE, so DE
+	ld	d,(hl)		; has address of target DPB
+;
+makdph1:
+;
+	; build the dph
+	pop	hl		; hl := start of dph
+	ld	a,8		; size of dph reserved area
+	call	addhl		; leave it alone (zero filled)
+;	
+	ld	bc,(dirbuf)	; address of dirbuf
+	ld	(hl),c		; plug dirbuf
+	inc	hl		; ... into dph
+	ld	(hl),b		; ... and bump
+	inc	hl		; ... to next dph entry
+;
+	ld	(hl),e		; plug dpb address
+	inc	hl		; ... into dph
+	ld	(hl),d		; ... and bump
+	inc	hl		; ... to next entry
+	dec	de		; point
+	dec	de		; ... to start
+	dec	de		; ... of
+	dec	de		; ... dpb
+	dec	de		; ... prefix data (cks & als buf sizes)
+	call	makdph2		; handle cks buf, then fall thru for als buf
+	ret	nz		; bail out on error
+;
+makdph2:
+	; DE = address of CKS or ALS buf to allocate
+	; HL = address of field in DPH to get allocated address
+	push	hl		; save DPH field ptr
+	pop	bc		; into BC
+;
+	; HL := alloc size, DE bumped
+	ex	de,hl
+	ld	e,(hl)		; get size to allocate 
+	inc	hl		; ...
+	ld	d,(hl)		; ... into HL
+	inc	hl		; and bump DE
+	ex	de,hl
+;
+	; check for size of zero, special case
+	ld	a,h		; check to see
+	or	l		; ... if hl is zero
+	jr	z,makdph3	; if so, jump ahead using hl as address
+;
+	; allocate memory
+	call	alloc		; do the allocation
+	jp	c,instovf	; bail out on overflow
+	
+makdph3:
+	; swap hl and bc
+	push	bc		; bc -> (sp)
+	ex	(sp),hl		; (sp) -> hl, hl -> (sp)
+	pop	bc		; (sp) -> bc
+;
+	; save allocated address
+	ld	(hl),c		; save cks/als buf
+	inc	hl		; ... address in
+	ld	(hl),b		; ... dph and bump
+	inc	hl		; ... to next dph entry	
+	xor	a		; signal success
+	ret
+;
+;
+;
+instcpm3:
+	; swicth to sysbnk
+	ld	a,($FFE0)	; get current bank
+	push	af		; save it
+	ld	bc,$F8F2	; HBIOS Get Bank Info
+	rst	08		; call HBIOS, E=User Bank
+	ld	a,e		; HBIOS User Bank
+	call	$FFF3		; HBIOS BNKSEL
+;
+	; copy drvmap working copy to CP/M 3 drvtbl
+	ld	hl,(drvtbl)	; get drvtbl address
+	ld	a,(hl)		; deref HL to get DPH0 adr
+	inc	hl		; ...
+	ld	h,(hl)		; ...
+	ld	l,a		; ...
+	ld	(dphadr),hl	; save starting dphadr
+	
+	
+	ld	hl,(drvtbl)	; get drive table in HL
+	ld	de,mapwrk	; DE := working drive map
+	ld	b,16
+instc1:
+	ld	a,(de)		; get unit field of mapwrk
+	inc	a		; test for $FF
+	jr	nz,instc2	; if used, do copy
+	xor	a		; zero accum
+	ld	(hl),a		; zero lsb of drvtbl entry adr
+	inc	hl		; move to msb
+	ld	(hl),a		; zero msb of drvtbl entry adr
+	inc	hl		; bump to start of next drvtbl entry
+	inc	de		; bump to next mapwrk entry
+	inc	de		; ...
+	inc	de		; ...
+	inc	de		; ...
+	jr	instc3		; resume loop without copy
+;
+instc2:	
+	push	hl		; save drvtbl entry adr
+	push	de		; save mapwrk entry adr
+	ld	de,(dphadr)	; get cur dph adr
+	ld	(hl),e		; save dph adr to drvtbl
+	inc	hl		; ...
+	ld	(hl),d		; ...
+	ex	de,hl		; dph adr to HL
+	pop	de		; restore mapwrk entry adr
+	dec	hl		; backup to unit
+	dec	hl		; ...
+	ld	a,(de)		; get unit from mapwrk
+	ld	(hl),a		; put unit into DPH field
+	inc	de		; bump to slice field of mapwrk
+	inc	hl		; bump to slice field of DPH field
+	ld	a,(de)		; get slice from mapwrk
+	ld	(hl),a		; put slice into DPH field
+;	ld	a,11		; media byte is 11 bytes ahead
+;	call	addhl		; bump HL to media byte adr
+;	or	$FF		; use $FF to signify media change
+;	ld	(hl),a		; set media flag byte
+	inc	de		; bump to next mapwrk entry
+	inc	de		; ...
+	inc	de		; ...
+	pop	hl		; back to drvtbl entry
+	inc	hl		; bump to
+	inc	hl		; ... next drvtbl entry
+instc3:
+	push	hl		; save drvtbl entry adr
+	push	de		; save mapwrk entry adr
+	ld	hl,(dphadr)	; get cur dph address
+	ld	de,$27		; size of xdph
+	add	hl,de		; bump to next dph
+	ld	(dphadr),hl	; save it
+	pop	de		; recover mapwrk entry adr
+	pop	hl		; recover drvtbl entry adr
+	djnz	instc1
+;
+	; switch back to tpabnk
+	pop	af		; recover prev bank
+	call	$FFF3		; HBIOS BNKSEL
+;
+	; set SCB drive door open flag
+	ld	a,$54		; SCB drive door opened flag
+	ld	(scboff),a	; set offset parm
+	or	$FF		; SCB operation, $FF = set
+	ld	(scbop),a	; set operation parm
+	ld	(scbval),a	; set value parm to $FF
+	ld	c,$31		; get/set system control block
+	ld	de,scbpb	; scb parameter block adr
+	call	bdos
+;
+	call	drvrst		; perform BDOS drive reset
+;
+	xor	a		; signal success
+	ret
+;
+; Handle overflow error in installation
+;
+instovf:
+	; restore stack frame and CBIOS image
+	ld	sp,(xstksav)	; restore stack frame
+	ld	hl,$1000	; start of CBIOS image buffer
+	ld	de,(bioloc)	; start of CBIOS
+	ld	bc,(biosiz)	; size of CBIOS
+	ldir			; restore it
+	jp	errovf
+;
+; Allocate HL bytes from heap
+; Return pointer to allocated memory in HL
+; On overflow error, C set
+;
+alloc:
+	push	de		; save de so we can use it for work reg
+	ld	de,(heaptop)	; get current heap top
+	push	de		; and save for return value
+	add	hl,de		; add requested space, hl := new heap top
+	jr	c,allocx	; test for cpu memory space overflow
+	ld	de,(heaplim)	; load de with heap limit
+	ex	de,hl		; de=new heaptop, hl=heaplim
+	sbc	hl,de		; heaplim - heaptop
+	jr	c,allocx	; c set on overflow error
+	; allocation succeeded, commit new heaptop              
+	ld	(heaptop),de	; save new heaptop
+allocx:                         
+	pop	hl		; return value to hl
+	pop	de		; recover de
+	ret
+;
+; Scan drive map table for integrity
+; Currently just checks for multiple drive 
+;   letters referencing a single file system
+;
+valid:
+	ld	hl,mapwrk	; point to working drive map table
+	ld	b,16 - 1	; loop one less times than num entries
+;
+	; check that drive A: is assigned
+	ld	a,$FF		; value that indicates unassigned
+	cp	(hl)		; compare to A: value
+	jp	z,errnoa	; handle failure
+;
+valid1:		; outer loop
+;	call	crlf
+	push	hl		; save pointer
+	push	bc		; save loop control
+	call	valid2		; do the inner loop
+	pop	bc		; restore loop control
+	pop	hl		; restore pointer
+	jp	z,errint	; validation error
+	ld	a,4		; 4 bytes per entry
+	call	addhl		; bump to next entry
+	djnz	valid1		; loop until done
+	xor	a		; signal OK
+	ret			; done
+;
+valid2:		; setup for inner loop
+	push	hl		; save HL
+	ld	a,4		; 4 bytes per entry
+	call	addhl		; point to entry following
+	pop	de		; de points to comparison entry
+;
+valid3:		; inner loop
+	; bypass unassigned drives (only need to test 1)
+	ld	a,(hl)		; get first drive unit in A
+	cp	$FF		; unassigned?
+	jr	z,valid4	; yes, skip
+;
+	; compare unit/slice values
+	ld	a,(de)		; first byte to A
+	cp	(hl)		; compare
+	jr	nz,valid4	; if not equal, continue loop
+	inc	de		; bump DE to next byte
+	inc	hl		; bump HL to next byte
+	ld	a,(de)		; first byte to A
+	cp	(hl)		; compare
+	ret	z		; both bytes equal, return signalling problem
+	dec	de		; point DE back to first byte of comparison entry
+	dec	hl		; point HL back
+;
+valid4:		; no match, loop
+	inc	hl
+	inc	hl		; bump HL
+	inc	hl		; ... to
+	inc	hl		; ... next entry
+	or	$FF		; no match
+	djnz	valid3		; loop as appropriate
+	ret
+;
+; Show a specific drive assignment
+;
+drvshow:
+	ld	a,(dstdrv)	; get the drive num
+	call	chkdrv		; valid drive letter?
+	ret	nz		; abort if not
+	call	showone		; show it
+	xor	a		; signal success
+	ret			; done
+;
+; Delete (unassign) drive
+;
+drvdel:
+	ld	a,(dstdrv)	; get the dest drive (to be unassigned)
+	call	chkdrv		; valid drive letter?
+	ret	nz		; abort if not
+	; point to correct entry in drive map
+	ld	hl,mapwrk	; point to working drive map
+	ld	a,(dstdrv)	; get drive letter to remove
+	rlca			; calc table offset
+	rlca			; ... as drive num * 4
+	call	addhl		; get final table offset
+	; wipe out the drive letter
+	ld	a,$FF		; dev/unit := $FF (unassigned)
+	ld	(hl),a		; do it
+	xor	a		; zero accum
+	inc	hl		; slice := 0
+	ld	(hl),a		; do it
+	inc	hl		; DPH pointer lsb := 0
+	ld	(hl),a		; do it
+	inc	hl		; DPH pointer msb := 0
+	ld	(hl),a		; do it
+	; done
+	ld	a,(dstdrv)	; get the destination
+	call	showone		; show it
+	ld	hl,modcnt	; point to mod count
+	inc	(hl)		; increment it
+	xor	a		; signal success
+	ret
+;
+; Swap the source and destination drive letters
+;
+drvswap:
+	ld	a,(dstdrv)	; get the destination drive
+	call	chkdrv		; valid drive?
+	ret	nz		; abort if not
+	ld	a,(srcdrv)	; get the source drive
+	call	chkdrv		; valid drive?
+	ret	nz		; abort if not
+	ld	hl,(drives)	; load source/dest in DE
+	ld	a,h		; put source drive num in a
+	cp	l		; compare to the dest drive num
+	jp	z,errswp	; Invalid swap request, src == dest
+;
+	; Get pointer to source drive table entry
+	ld	hl,mapwrk
+	ld	a,(srcdrv)
+	rlca
+	rlca
+	call	addhl
+	ld	(srcptr),hl
+;
+	; Get pointer to destination drive table entry
+	ld	hl,mapwrk
+	ld	a,(dstdrv)
+	rlca
+	rlca
+	call	addhl
+	ld	(dstptr),hl
+;	
+	; 1) dest -> temp
+	ld	hl,(dstptr)
+	ld	de,tmpent
+	ld	bc,4
+	ldir
+;
+	; 2) source -> dest
+	ld	hl,(srcptr)
+	ld	de,(dstptr)
+	ld	bc,4
+	ldir
+;
+	; 3) temp -> source
+	ld	hl,tmpent
+	ld	de,(srcptr)
+	ld	bc,4
+	ldir
+;
+	; print the results
+	ld	a,(dstdrv)	; get the destination
+	call	showone		; show it
+	ld	a,(srcdrv)	; get the source drive
+	call	showone		; show it
+;
+	ld	hl,modcnt	; point to mod count
+	inc	(hl)		; increment it
+	xor	a		; signal success
+	ret			; exit
+;
+; Assign drive to specified unit/slice
+;
+drvmap:
+	; check for UNA mode
+	ld	a,(unamod)	; get UNA mode flag
+	or	a		; set flags
+	jr	nz,drvmapu	; do UNA mode drvmap
+;
+		; determine device code by scanning for string
+	ld	b,16		; device table always has 16 entries
+	ld	c,0		; c is used to track table entry num
+	ld	de,tmpstr	; de points to specified device name
+	ld	hl,devtbl	; hl points to first entry of devtbl
+;
+drvmap1:	; loop through device table looking for a match
+	push	hl		; save device table entry pointer
+	ld	a,(hl)		; dereference HL
+	inc	hl		;   ... to point to
+	ld	h,(hl)		;   ... string
+	ld	l,a		;   ... in device table
+	push	de		; save string pointer
+	push	bc		; save loop control stuff
+	call	strcmp		; compare strings
+	pop	bc		; restore loop control stuff
+	pop	de		; restore de
+	pop	hl		; restore table entry pointer
+	jr	z,drvmap2	; match, continue
+	inc	hl		; bump to next
+	inc	hl		; device table pointer
+	inc	c		; keep track of table entry num
+	djnz	drvmap1		; and loop
+	jp	errdev
+;
+drvmap2:	
+	; convert index to device type id
+	ld	a,c		; index to accum
+	ld	(device),a	; save as device id
+;
+	; loop thru hbios units looking for device type/unit match
+	ld	b,$F8		; hbios func: sysget
+	ld	c,$10		; sysget subfunc: diocnt
+	rst	08		; call hbios, E := device count 
+	ld	b,e		; use device count for loop count
+	ld	c,0		; use C for device index
+drvmap3:
+	push	bc		; preserve loop control
+	ld	b,$17		; hbios func: diodevice
+	rst	08		; call hbios, D := device, E := unit
+	pop	bc		; restore loop control
+	ld	a,(device)
+	cp	d
+	jr	nz,drvmap4
+	ld	a,(unit)
+	cp	e
+	jr	z,drvmap5	; match, continue, C = BIOS unit
+drvmap4:
+	; continue looping
+	inc	c
+	djnz	drvmap3
+	jp	errdev		; invalid device specified
+;
+drvmap5:
+	; check for valid unit (supported by BIOS)
+	push	bc		; save unit
+	ld	a,c		; unit to A
+	call	chkdev		; check validity
+	pop	bc		; restore unit
+	ret	nz		; bail out on error
+	
+	; resolve the CBIOS DPH table entry
+	ld	a,(dstdrv)	; dest drv num to A
+	call	chkdrv		; valid drive?
+	ret	nz		; abort if invalid
+	ld	hl,mapwrk	; point to start of drive map
+	rlca			; multiply by
+	rlca			; ... entry size of 4
+	call	addhl		; adjust HL to point to entry
+	ld	(dstptr),hl	; save it
+;
+	; shove updated unit/slice into the entry
+	ld	(hl),c		; save unit byte
+	inc	hl		; bump to next byte
+	ld	a,(slice)
+	ld	(hl),a		; save slice
+;
+	; finish up
+	ld	a,(dstdrv)	; get the destination drive
+	call	showone		; show it's new value
+	ld	hl,modcnt	; point to mod count
+	inc	(hl)		; increment it
+	xor	a		; signal success
+	ret			; exit
+;
+; UNA mode drive mapping
+;
+drvmapu:
+;
+	; verify the device nmeumonic
+	ld	a,(unit)	; get unit specified
+	ld	b,a		; put in b
+	ld	d,0		; preset type to 0
+	ld	c,$48		; una func: get disk type
+	rst	08		; call una, b is assumed to be untouched!!!
+	ld	a,d		; resultant device type to a
+	cp	$40		; RAM/ROM
+	jr	z,drvmapu0	; special case for RAM/ROM
+	ld	de,udevide	; assume IDE
+	cp	$41		; IDE?
+	jr	z,drvmapu1	; do compare
+	ld	de,udevppide	; assume PPIDE
+	cp	$42		; PPIDE?
+	jr	z,drvmapu1	; do compare
+	ld	de,udevsd	; assume SD
+	cp	$43		; SD?
+	jr	z,drvmapu1	; do compare
+	ld	de,udevdsd	; assume DSD
+	cp	$44		; DSD?
+	jr	z,drvmapu1	; do compare
+	jp	errdev		; error, invalid device name
+;
+drvmapu0:
+	; handle RAM/ROM
+	ld	a,(unit)	; get unit specified
+	ld	b,a		; unit num to B
+	ld	c,$45		; UNA func: get disk info
+	ld	de,$9000	; 512 byte buffer *** FIX!!! ***
+	rst	08		; call UNA
+	bit	7,b		; test RAM drive bit
+	ld	de,udevrom	; assume ROM
+	jr	z,drvmapu1	; do compare
+	ld	de,udevram	; assume RAM
+	jr	drvmapu1	; do compare
+	jp	errdev		; error, invalid device name
+;
+drvmapu1:
+	ld	hl,tmpstr	; point HL to specified device name
+	call	strcmp		; compare
+	jp	nz,errdev	; no match, invalid device name
+;
+	; check for valid unit (supported by BIOS)
+	ld	a,(unit)	; get specified unit
+	call	chkdevu		; check validity
+	jp	nz,errdev	; invalid device specified
+;
+	; resolve the CBIOS DPH table entry
+	ld	a,(dstdrv)	; dest drv num to A
+	call	chkdrv		; valid drive?
+	ret	nz		; abort if invalid
+	ld	hl,mapwrk	; point to start of drive map
+	rlca			; multiply by
+	rlca			; ... entry size of 4
+	call	addhl		; adjust HL to point to entry
+	ld	(dstptr),hl	; save it
+;
+	; shove updated unit/slice into the entry
+	ld	a,(unit)	; get specified unit
+	ld	(hl),a		; save it
+	inc	hl		; next byte is slice
+	ld	a,(slice)	; get specified slice
+	ld	(hl),a		; save it
+;
+	; finish up
+	ld	a,(dstdrv)	; get the destination drive
+	call	showone		; show it's new value
+	ld	hl,modcnt	; point to mod count
+	inc	(hl)		; increment it
+	xor	a		; signal success
+	ret
+;
+; Display all active drive letter assignments
+;
+showall:
+	ld	b,16		; 16 drives possible
+	ld	c,0		; map index (drive letter)
+;
+	ld	a,b		; load count
+	or	$FF		; signal no action
+	ret	z		; bail out if zero
+;
+showall1:	; loop
+	ld	a,c		;
+	push	bc		; save loop control
+	call	showass
+	pop	bc		; restore loop control
+	inc	c
+	djnz	showall1
+	or	$FF
+	ret
+;
+; Display drive letter assignment IF it is assigned
+; Drive num in A
+;
+showass:
+;
+	; setup HL to point to desired entry in table
+	ld	c,a		; save incoming drive in C
+	ld	hl,mapwrk	; HL = address of drive map
+	rlca
+	rlca
+	call	addhl		; HL = address of drive map table entry
+	ld	a,(hl)		; get unit value
+	cp	$FF		; compare to unassigned value
+	ld	a,c		; recover original drive num
+	ret	z		; bail out if unassigned drive
+	; fall thru to display drive
+;
+; Display drive letter assignment for the drive num in A
+;
+showone:
+;
+	push	af		; save the incoming drive num
+;
+	call	crlf		; formatting
+;
+	ld	de,indent	; indent
+	call	prtstr		; ... to look nice
+;
+	; setup HL to point to desired entry in table
+	pop	af
+	push	af
+	ld	hl,mapwrk	; HL = address of drive map
+	rlca
+	rlca
+	call	addhl		; HL = address of drive map table entry
+	pop	af
+;
+	; render the drive letter based on table index
+	add	a,'A'		; convert to alpha
+	call	prtchr		; print it
+	ld	a,':'		; conventional color after drive letter
+	call	prtchr		; print it
+	ld	a,'='		; use '=' to represent assignment
+	call 	prtchr		; print it
+;
+	; render the map entry
+	ld	a,(hl)		; load unit
+	cp	$FF		; empty?
+	ret	z		; yes, bypass
+	push	hl		; preserve HL
+	call	prtdev		; print device mnemonic
+	ld	a,':'		; colon for device/unit format
+	call	prtchr		; print it
+	pop	hl		; recover HL
+	inc	hl		; point to slice num
+	ld	a,(hl)		; load slice num
+	call	prtdecb		; print it
+;
+	ret
+;
+; Force BDOS to reset (logout) all drives
+;
+drvrst:
+	ld	c,$0D		; BDOS Reset Disk function
+	call	bdos		; do it
+;
+	ld	c,$25		; BDOS Reset Multiple Drives
+	ld	de,$FFFF	; all drives
+	call	bdos		; do it
+;
+	xor	a		; signal success
+	ret
+;
+; Print device mnemonic based on device number in A
+;
+prtdev:
+	ld	e,a		; stash incoming device num in E
+	ld	a,(unamod)	; get UNA mode flag
+	or	a		; set flags
+	ld	a,e		; put device num back
+	jr	nz,prtdevu	; print device in UNA mode
+	ld	b,$17		; hbios func: diodevice
+	ld	c,a		; unit to C
+	rst	08		; call hbios, D := device, E := unit
+	push	de		; save results
+	ld	a,d		; device to A
+	and	$0F		; mask out undesired bits
+	push	hl		; save HL
+	add	a,a		; multiple A by two for word table
+	ld	hl,devtbl	; point to start of device name table
+	call	addhl		; add A to hl to point to table entry
+	ld	a,(hl)		; dereference hl to loc of device name string
+	inc	hl		;   ...
+	ld	d,(hl)		;   ...
+	ld	e,a		;   ...
+	call	prtstr		; print the device nmemonic
+	pop	hl		; restore HL
+	pop	de		; get device/unit data back
+	ld	a,e		; device id to a
+	call	prtdecb		; print it
+	ret			; done
+;
+prtdevu:
+	push	bc
+	push	de
+	push	hl
+;	
+	; UNA mode version of print device
+	ld	b,a		; B := unit num
+	push	bc		; save for later
+	ld	c,$48		; UNA func: get disk type
+	rst	08		; call UNA
+	ld	a,d		; disk type to A
+	pop	bc		; get unit num back in C
+;
+	; pick string based on disk type
+	cp	$40		; RAM/ROM?
+	jr	z,prtdevu1	; if so, handle it
+	cp	$41		; IDE?
+	ld	de,udevide	; load string
+	jr	z,prtdevu2	; if IDE, print and return
+	cp	$42		; PPIDE?
+	ld	de,udevppide	; load string
+	jr	z,prtdevu2	; if PPIDE, print and return
+	cp	$43		; SD?
+	ld	de,udevsd	; load string
+	jr	z,prtdevu2	; if SD, print and return
+	cp	$44		; DSD?
+	ld	de,udevdsd	; load string
+	jr	z,prtdevu2	; if DSD, print and return
+	ld	de,udevunk	; load string for unknown
+	jr	prtdevu2	; and print it
+;
+prtdevu1:
+	; handle RAM/ROM
+	push	bc		; save unit num
+	ld	c,$45		; UNA func: get disk info
+	ld	de,$9000	; 512 byte buffer *** FIX!!! ***
+	rst	08		; call UNA
+	bit	7,b		; test RAM drive bit
+	pop	bc		; restore unit num
+	ld	de,udevrom	; load string
+	jr	z,prtdevu2	; print and return
+	ld	de,udevram	; load string
+	jr	prtdevu2	; print and return
+;
+prtdevu2:
+	call	prtstr		; print the device nmemonic
+	ld	a,b		; get the unit num back
+	call	prtdecb		; append it
+	pop	hl
+	pop	de
+	pop	bc
+	ret
+;
+; Check that specified drive num is valid
+;
+chkdrv:
+	cp	16		; max of 16 drive letters
+	jp	nc,errdrv	; handle bad drive
+	cp	a		; set Z to signal good
+	ret			; and return
+;
+; Check that the unit value in A is valid
+; according to active BIOS support.
+;
+;
+chkdev:		; HBIOS variant
+	push	af		; save incoming unit
+	ld	b,$F8		; hbios func: sysget
+	ld	c,$10		; sysget subfunc: diocnt
+	rst	08		; call hbios, E := device count
+	pop	af		; restore incoming unit
+	cp	e		; compare to unit count
+	jp	nc,errdev	; if too high, error
+;
+	; get device/unit info
+	ld	b,$17		; hbios func: diodevice
+	ld	c,a		; unit to C
+	rst	08		; call hbios, C := device attributes
+;
+	; check slice support
+	bit	5,c		; high capacity device?
+	jr	z,chkdev1	; if not high cap, check slice val
+	xor	a		; otherwise, signal OK
+	ret
+;
+chkdev1:	; not a hard disk, make sure slice == 0
+	ld	a,(slice)	; get specified slice
+	or	a		; set flags
+	jp	nz,errslc	; invalid slice error
+	xor	a		; signal OK
+	ret
+;
+chkdevu:	; UNA variant
+	ld	b,a		; put in b
+	ld	d,0		; preset type to 0
+	ld	c,$48		; una func: get disk type
+	rst	08		; call una
+	ld	a,d		; resultant device type to a
+	or	a		; set flags
+	jp	z,errdev	; invalid if 0
+;
+	; check for slice support, if required
+	cp	$40		; ram/rom?
+	jr	z,chkdevu1	; yes, check for slice
+;	cp	$??		; floppy?
+;	jr	z,chkdevu1	; yes, check for slice
+	xor	a		; otherwise signal success
+	ret			; and return
+;
+chkdevu1:
+	ld	a,(slice)	; get specified slice
+	or	a		; set flags
+	jp	nz,errslc	; invalid slice error
+	xor	a		; otherwise, signal OK
+	ret			; and return
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	ret
+;
+prtdot:
+;
+	; shortcut to print a dot preserving all regs
+	push	af		; save af
+	ld	a,'.'		; load dot char
+	call	prtchr		; print it
+	pop	af		; restore af
+	ret			; done
+;
+; Print a zero terminated string at (HL) without destroying any registers
+;
+prtstr:
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	ret	
+;
+; Print the value in A in hex without destroying any registers
+;
+prthex:
+	push	af		; save AF
+	push	de		; save DE
+	call	hexascii	; convert value in A to hex chars in DE
+	ld	a,d		; get the high order hex char
+	call	prtchr		; print it
+	ld	a,e		; get the low order hex char
+	call	prtchr		; print it
+	pop	de		; restore DE
+	pop	af		; restore AF
+	ret			; done
+;
+; print the hex word value in bc
+;
+prthexword:
+	push	af
+	ld	a,b
+	call	prthex
+	ld	a,c
+	call	prthex 
+	pop	af
+	ret
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+hexascii:
+	ld	d,a		; save A in D
+	call	hexconv		; convert low nibble of A to hex
+	ld	e,a		; save it in E
+	ld	a,d		; get original value back
+	rlca			; rotate high order nibble to low bits
+	rlca
+	rlca
+	rlca
+	call	hexconv		; convert nibble
+	ld	d,a		; save it in D
+	ret			; done
+;
+; Convert low nibble of A to ascii hex
+;
+hexconv:
+	and	$0F	     	; low nibble only
+	add	a,$90
+	daa	
+	adc	a,$40
+	daa	
+	ret
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+prtdecb:
+	push	hl
+	ld	h,0
+	ld	l,a
+	call	prtdecw		; print it
+	pop	hl
+	ret
+;
+prtdecw:
+	push	af
+	push	bc
+	push	de
+	push	hl
+	call	prtdec0
+	pop	hl
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+prtdec0:
+	ld	e,'0'
+	ld	bc,-10000
+	call	prtdec1
+	ld	bc,-1000
+	call	prtdec1
+	ld	bc,-100
+	call	prtdec1
+	ld	c,-10
+	call	prtdec1
+	ld	e,0
+	ld	c,-1
+prtdec1:
+	ld	a,'0' - 1
+prtdec2:
+	inc	a
+	add	hl,bc
+	jr	c,prtdec2
+	sbc	hl,bc
+	cp	e
+	ret	z
+	ld	e,0
+	call	prtchr
+	ret
+;
+; Print a byte buffer in hex pointed to by DE
+; Register A has size of buffer
+;
+prthexbuf:
+	or	a
+	ret	z		; empty buffer
+;
+	ld	b,a
+prthexbuf1:
+	ld	a,' '
+	call	prtchr
+	ld	a,(de)
+	call	prthex
+	inc	de
+	djnz	prthexbuf1
+	ret
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Get the next non-blank character from (HL).
+;
+nonblank:
+	ld	a,(hl)		; load next character
+	or	a		; string ends with a null
+	ret	z		; if null, return pointing to null
+	cp	' '		; check for blank
+	ret	nz		; return if not blank
+	inc	hl		; if blank, increment character pointer
+	jr	nonblank	; and loop
+;
+; Check character at (DE) for delimiter.
+;
+delim:	or	a
+	ret	z
+	cp	' '		; blank
+	ret	z
+	jr	c,delim1	; handle control characters
+	cp	'='		; equal
+	ret	z
+	cp	'_'		; underscore
+	ret	z
+	cp	'.'		; period
+	ret	z
+	cp	':'		; colon
+	ret	z
+	cp	$3B		; semicolon
+	ret	z
+	cp	'<'		; less than
+	ret	z
+	cp	'>'		; greater than
+	ret
+delim1:
+	; treat control chars as delimiters
+	xor	a		; set Z
+	ret			; return
+;
+; Get alpha chars and save in tmpstr
+; return with terminating char in A and flags set
+; return with num chars in B
+;
+getalpha:
+;
+	ld	de,tmpstr	; location to save chars
+	ld	b,0		; length counter
+;
+getalpha1:
+	ld	a,(hl)		; get active char
+	cp	'A'		; check for start of alpha range
+	jr	c,getalpha2	; not alpha, get out
+	cp	'Z' + 1		; check for end of alpha range
+	jr	nc,getalpha2	; not alpha, get out
+	; handle alpha char
+	inc	hl		; increment buffer ptr
+	ld	(de),a		; save it
+	inc	de		; inc string pointer
+	inc	b		; inc string length
+	ld	a,b		; put length in A
+	cp	8		; max length?
+	jr	z,getalpha2	; if max, get out
+	jr	getalpha1	; and loop
+;
+getalpha2:	; non-alpha, clean up and return
+	xor	a		; clear accum
+	ld	(de),a		; terminate string
+	ld	a,(hl)		; recover terminating char
+	or	a		; set flags
+	ret			; and done
+;
+; Get numeric chars and convert to number returned in A
+; Carry flag set on overflow
+;
+getnum:
+	ld	c,0		; C is working register
+getnum1:
+	ld	a,(hl)		; get the active char
+	cp	'0'		; compare to ascii '0'
+	jr	c,getnum2	; abort if below
+	cp	'9' + 1		; compare to ascii '9'
+	jr	nc,getnum2	; abort if above\
+;
+	; valid digit, add new digit to C
+	ld	a,c		; get working value to A
+	rlca			; multiply by 10
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	add	a,c		; ...
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+	ld	a,(hl)		; get new digit
+	sub	'0'		; make binary
+	add	a,c		; add in working value
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+;
+	inc	hl		; bump to next char
+	jr	getnum1		; loop
+;
+getnum2:	; return result
+	ld	a,c		; return result in A
+	or	a		; with flags set, CF is cleared
+	ret
+;
+; Compare null terminated strings at HL & DE
+; If equal return with Z set, else NZ
+;
+strcmp:
+;
+	ld	a,(de)		; get current source char
+	cp	(hl)		; compare to current dest char
+	ret	nz		; compare failed, return with NZ
+	or	a		; set flags
+	ret	z		; end of string, match, return with Z set
+	inc	de		; point to next char in source
+	inc	hl		; point to next char in dest
+	jr	strcmp		; loop till done
+;
+; Invoke CBIOS function
+; The CBIOS function offset must be stored in the byte
+; following the call instruction.  ex:
+;	call	cbios
+;	.db	$0C		; offset of CONOUT CBIOS function
+;
+cbios:
+	ex	(sp),hl
+	ld	a,(hl)		; get the function offset
+	inc	hl		; point past value following call instruction
+	ex	(sp),hl		; put address back at top of stack and recover HL
+	ld	hl,(bioloc)	; address of CBIOS function table to HL
+	call	addhl		; determine specific function address
+	jp	(hl)		; invoke CBIOS
+;
+; Routine to call CPM3 BIOS routines via BDOS
+; function 50.
+;
+xbios:
+	ld	(biofnc),a	; set BIOS function
+	ld	c,50		; direct BIOS call function
+	ld	(dereg),de	; set DE parm
+	ld	de,biospb	; BIOS parameter block
+	jp	bdos		; invoke BDOS
+;
+biospb:
+biofnc	.db	0		; BIOS function
+areg	.db	0		; A register
+bcreg	.dw	0		; BC register
+dereg	.dw	0		; DE register
+hlreg	.dw	0		; HL register
+;
+; Add the value in A to HL (HL := HL + A)
+;
+addhl:
+	add	a,l		; A := A + L
+	ld	l,a		; Put result back in L
+	ret	nc		; if no carry, we are done
+	inc	h		; if carry, increment H
+	ret			; and return
+;
+; Jump indirect to address in HL
+;
+jphl:
+	jp	(hl)
+;
+; Errors
+;
+erruse:	; command usage error (syntax)
+	ld	de,msguse
+	jr	err
+;
+errprm:	; command parameter error (syntax)
+	ld	de,msgprm
+	jr	err
+;
+errinv:	; invalid CBIOS, zp signature not found
+	ld	de,msginv
+	jr	err
+;
+errver:	; CBIOS version is not as expected
+	ld	de,msgver
+	jr	err
+;
+errdrv:	; Invalid drive letter specified
+	push	af
+	call	crlf
+	ld	de,msgdrv1
+	call	prtstr
+	pop	af
+	add	a,'A'
+	call	prtchr
+	ld	de,msgdrv2
+	jr	err1
+;
+errswp:	; invalid drive swap request
+	ld	de,msgswp
+	jr	err
+;
+errdev:	; invalid device name
+	ld	de,msgdev
+	jr	err
+;
+errslc:	; invalid slice
+	ld	de,msgslc
+	jr	err
+;
+errtyp:	; invalid device assignment request (not a hard disk device type)
+	ld	de,msgtyp
+	jr	err
+;
+errnum:	; invalid number parsed, overflow
+	ld	de,msgnum
+	jr	err
+;
+errint:	; DPH table integrity error (multiple drives ref one filesystem)
+	ld	de,msgint
+	jr	err
+;
+errnoa:	; No A: drive assignment
+	ld	de,msgnoa
+	jr	err
+;
+errovf:	; CBIOS disk buffer overflow
+	ld	de,msgovf
+	jr	err
+;
+errdos:	; handle BDOS errors
+	push	af		; save return code
+	call	crlf		; newline
+	ld	de,msgdos	; load
+	call	prtstr		; and print error string
+	pop	af		; recover return code
+	call	prthex		; print error code
+	jr	err2
+;
+err:	; print error string and return error signal
+	call	crlf2		; print double newline
+;
+err1:	; without the leading crlf
+	call	prtstr		; print error string
+;
+err2:	; without the string
+;	call	crlf		; print newline
+	or	$FF		; signal error
+	ret			; done
+;
+;===============================================================================
+; Storage Section
+;===============================================================================
+;
+;
+bioloc	.dw	0		; CBIOS starting address
+bioend	.dw	0		; CBIOS ending address
+biosiz	.dw	0		; CBIOS size (in bytes)
+maploc	.dw	0		; location of CBIOS drive map table
+dpbloc	.dw	0		; location of CBIOS DPB map table
+cpmver	.dw	0		; CP/M version
+drvtbl	.dw	0		; CP/M 3 drive table address
+dphadr	.dw	0		; CP/M 3 working value for DPH
+;
+drives:
+dstdrv	.db	0		; destination drive
+srcdrv	.db	0		; source drive
+device	.db	0		; source device
+unit	.db	0		; source unit
+slice	.db	0		; source slice
+;
+unamod	.db	0		; $FF indicates UNA UBIOS active
+modcnt	.db	0		; count of drive map modifications
+;
+srcptr	.dw	0		; source pointer for copy
+dstptr	.dw	0		; destination pointer for copy
+tmpent	.fill	4,0		; space to save a table entry
+tmpstr	.fill	9,0		; temporary string of up to 8 chars, zero term
+;
+heaptop	.dw	0		; current address of top of heap memory
+heaplim	.dw	0		; heap limit address
+;
+dirbuf	.dw	0		; directory buffer location
+;
+scbpb:	; BDOS SCB get/set parm block
+scboff	.db	$54		; media open door flag
+scbop	.db	$FF		; set a byte
+scbval	.dw	$FF		; value to set
+;
+mapwrk	.fill	(4 * 16),$FF	; working copy of drive map
+;
+devtbl:				; device table
+	.dw	dev00, dev01, dev02, dev03
+	.dw	dev04, dev05, dev06, dev07
+	.dw	dev08, dev09, dev10, dev11
+	.dw	dev12, dev13, dev14, dev15
+;
+devunk	.db	"?",0
+dev00	.db	"MD",0
+dev01	.db	"FD",0
+dev02	.db	"RAMF",0
+dev03	.db	"IDE",0
+dev04	.db	"ATAPI",0
+dev05	.db	"PPIDE",0
+dev06	.db	"SD",0
+dev07	.db	"PRPSD",0
+dev08	.db	"PPPSD",0
+dev09	.db	"HDSK",0
+dev10	.db	"PPA",0
+dev11	.db	"IMM",0
+dev12	.db	"SYQ",0
+dev13	.db	"CHUSB",0
+dev14	.db	"CHSD",0
+dev15	.equ	devunk
+;
+devcnt	.equ	10		; 10 devices defined
+;
+udevram		.db	"RAM",0
+udevrom		.db	"ROM",0
+udevide		.db	"IDE",0
+udevppide	.db	"PPIDE",0
+udevsd		.db	"SD",0
+udevdsd		.db	"DSD",0
+udevunk		.db	"UNK",0
+;
+stksav	.dw	0		; stack pointer saved at start
+xstksav	.dw	0		; temp stack save for error recovery
+	.fill	stksiz,0	; stack
+stack	.equ	$		; stack top
+;
+; Messages
+;
+indent	.db	"   ",0
+msgban1	.db	"ASSIGN v1.8 for RomWBW CP/M ",0
+msg22	.db	"2.2",0
+msg3	.db	"3",0
+msbban2	.db	", 13-Oct-2023",0
+msghb	.db	" (HBIOS Mode)",0
+msgub	.db	" (UBIOS Mode)",0
+msgban3	.db	"Copyright 2023, Wayne Warthen, GNU GPL v3",0
+msguse	.db	"Usage: ASSIGN D:[=[{D:|<device>[<unitnum>]:[<slicenum>]}]][,...]",13,10
+	.db	"  ex. ASSIGN           (display all active assignments)",13,10
+	.db	"      ASSIGN /?        (display version and usage)",13,10
+	.db	"      ASSIGN /L        (display all possible devices)",13,10
+	.db	"      ASSIGN C:=D:     (swaps C: and D:)",13,10
+	.db	"      ASSIGN C:=FD0:   (assign C: to floppy unit 0)",13,10
+	.db	"      ASSIGN C:=IDE0:1 (assign C: to IDE unit0, slice 1)",13,10
+	.db	"      ASSIGN C:=       (unassign C:)",0
+msgprm	.db	"Parameter error (ASSIGN /? for usage)",0
+msginv	.db	"Unexpected CBIOS (signature missing)",0
+msgver	.db	"Unexpected CBIOS version",0
+msgdrv1	.db	"Invalid drive letter (",0
+msgdrv2	.db	":)",0
+msgswp	.db	"Invalid drive swap request",0
+msgdev	.db	"Invalid device name (ASSIGN /L for device list)",0
+msgslc	.db	"Specified device does not support slices",0
+msgnum	.db	"Unit or slice number invalid",0
+msgovf	.db	"Disk buffer exceeded in CBIOS, aborted",0
+msgtyp	.db	"Only hard drive devices can be reassigned",0
+msgint	.db	"Multiple drive letters reference one filesystem, aborting!",0
+msgnoa	.db	"Drive A: is unassigned, aborting!",0
+msgdos	.db	"DOS error, return code=0x",0
+msgmem	.db	" Disk Buffer Bytes Free",0
+;
+modsize	.equ	$ - start
+;
+	.end
diff --git a/Source/Apps/copysl/Build.cmd b/Source/Apps/copysl/Build.cmd
new file mode 100644
index 00000000..22be44e8
--- /dev/null
+++ b/Source/Apps/copysl/Build.cmd
@@ -0,0 +1,8 @@
+@echo off
+setlocal
+
+:: copysl.com is currently distributed as a binary application, so
+:: it is not built here.
+
+copy /Y copysl.com ..\..\..\Binary\Apps\ || exit /b
+copy /Y copysl.doc ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/copysl/Clean.cmd b/Source/Apps/copysl/Clean.cmd
new file mode 100644
index 00000000..2b4cb29c
--- /dev/null
+++ b/Source/Apps/copysl/Clean.cmd
@@ -0,0 +1,5 @@
+@echo off
+setlocal
+
+:: copysl.com is currently distributed as a binary application, so
+:: we do not delete the .COM file.
\ No newline at end of file
diff --git a/Source/Apps/copysl/Makefile b/Source/Apps/copysl/Makefile
new file mode 100644
index 00000000..1024dc14
--- /dev/null
+++ b/Source/Apps/copysl/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = copysl.com
+NODELETE = $(OBJECTS)
+DOCS = copysl.doc
+DEST = ../../../Binary/Apps
+DOCDEST = ../../../Binary/Apps
+TOOLS=../../../Tools
+include $(TOOLS)/Makefile.inc
diff --git a/Source/Apps/copysl/copysl.com b/Source/Apps/copysl/copysl.com
new file mode 100644
index 00000000..269abbbb
Binary files /dev/null and b/Source/Apps/copysl/copysl.com differ
diff --git a/Source/Apps/copysl/copysl.doc b/Source/Apps/copysl/copysl.doc
new file mode 100644
index 00000000..57fc09ac
--- /dev/null
+++ b/Source/Apps/copysl/copysl.doc
@@ -0,0 +1,98 @@
+==========================================================================
+              CopySlice Utility v0.2 for RomWbW computers
+                   written by Mark Pruden (Sept 2024)
+==========================================================================
+
+Purpose:
+--------
+
+The purpose of this utility is to allow the copying of whole disk slices
+from one disk slice to another slice
+
+Background
+----------
+
+This tool is only supported by RomWBW HBIOS, it uses HDIOS for all its 
+disk IO. UNA UBIOS is not supported by this tool. 
+
+This tool is running on CP/M 2.2 or 3.0 and has access to full 64kb of
+RAM, with a minimum of 48kb TPA
+
+This tool only works with hard disk devices, other media types like 
+floppy, are not supported at this time. This tool works across different 
+hard disk device types, even of different physical type
+
+Both hd1k and hd512 are fully supported, however copying from one layout 
+type to the other is not supported.
+
+During operation data is copied in a single read/write pass, data is not 
+verified by default. If there is a write error, it will be reported, and
+operation will stop.
+
+General Usage
+-------------
+This tool operates at the disk level via RomWBW, thus all disk identifiers 
+are in the RomWBW <disk>.<unit> format
+
+The syntax (similar to copy) for the command is:
+
+  COPYSL <destunit>[.<slice>]=<srcunit>[.<slice>] [/options]
+  
+E.g.
+  
+  COPYSL 3.3=2.10 /U
+
+Means copy from slice 10 on disk 2, onto disk 3 slice 3. This is in 
+unattended mode, so you will not be asked to confirm the copy operation.
+
+Options
+-------
+F - Full disk copy. Copies the complete disk slice, all sectors.
+U - Unattended. Will complete copy without confirmation from the user.
+V - Verify. Does an additional read and verify after write.
+
+Description
+-----------
+
+When run COPYSL will perform command line argument validation and display 
+an error if they are illegal. Also any disk IO errors will cause COPYSL
+to exit.
+
+When specifying slice number(s) a check is made that the slice number is 
+valid, i.e. not too large that it would extend past the end of the 
+partition (hd1k), or the end of the media (hd512). For hd512 a check is
+also performed to ensure that the slice would not extend into the first 
+defined partition.
+
+The copy operation will be faster if the source disk has been formatted
+with the CP/M file system, since during copy the CP/M directory is scanned, 
+and unused blocks are not copied. 
+
+If a filesystem is not found, (or the /F option is chosen) all data is 
+copied.
+
+Verification (if option chosen) will do an aditional read (after write)
+and compare the data read matches what was written. This compare is only
+on every 32'nd byte. This is done for efficiency. 
+
+During copy dots "." will be displayed to indicate progress of the copy.
+Each "." represents 16 kBytes of data. Each line of "." 's is 1 mBytes.
+
+Testing
+-------
+This tool has been writen and tested on a SC126 computer. Testing been on both 
+SD and CF media types, and with both hd1k and hd512 formats
+
+History
+-------
+* v 0.1 Initial Release
+* v 0.2 Added the /v command option to read and verify after write
+
+Future
+------
+* support ability to read and write from image files stored in CP/M filesystem
+* maybe the verify options could allow more complete verification.
+  This would be at the cost of performance
+* ability to abort once the copy has started <ctrl><c>
+
+
\ No newline at end of file
diff --git a/Source/Apps/cpuspd/Build.cmd b/Source/Apps/cpuspd/Build.cmd
index 1e3fe0a5..cf0a2a5b 100644
--- a/Source/Apps/cpuspd/Build.cmd
+++ b/Source/Apps/cpuspd/Build.cmd
@@ -5,6 +5,6 @@ set TOOLS=../../../Tools
 set PATH=%TOOLS%\tasm32;%PATH%
 set TASMTABS=%TOOLS%\tasm32
 
-tasm -t180 -g3 -fFF cpuspd.asm cpuspd.com cpuspd.lst || exit /b
+tasm -t80 -g3 -fFF cpuspd.asm cpuspd.com cpuspd.lst || exit /b
 
 copy /Y cpuspd.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/cpuspd/cpuspd.asm b/Source/Apps/cpuspd/cpuspd.asm
index 86f63e0a..4fef256c 100644
--- a/Source/Apps/cpuspd/cpuspd.asm
+++ b/Source/Apps/cpuspd/cpuspd.asm
@@ -23,6 +23,12 @@ rtc_port	.equ	$70		; RTC latch port adr
 restart		.equ	$0000		; CP/M restart vector
 bdos		.equ	$0005		; BDOS invocation vector
 ;
+bf_sysreset	.equ	$F0		; restart system
+;
+bf_sysres_int	.equ	$00		; reset hbios internal
+bf_sysres_warm	.equ	$01		; warm start (restart boot loader)
+bf_sysres_cold	.equ	$02		; cold start
+;
 ident		.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
 ;
 ;=======================================================================
@@ -113,6 +119,10 @@ main1:
 ;
 main2:
 	ret	z		; if end, nothing to do
+	cp	'W'		; warm boot?
+	jp	z,wboot		; if so, do it
+	cp	'C'		; cold boot?
+	jp	z,cboot		; if so, do it
 	cp	','		; no new speed?
 	jr	z,main2a	; go to wait states
 	; parse speed string (half, full, double)
@@ -161,6 +171,9 @@ parse_spd:
 	ld	c,2			; assume double speed
 	cp	'D'			; check it
 	jr	z,parse_spd1		; if equal, done
+	ld	c,3			; assume quad speed
+	cp	'Q'			; check it
+	jr	z,parse_spd1		; if equal, done
 	or	a			; clear CF
 	ccf				; set CF to indicate error
 	ret
@@ -222,6 +235,9 @@ show_spd:
 	ld	de,str_dbl
 	cp	2
 	jr	z,show_spd1
+	ld	de,str_quad
+	cp	3
+	jr	z,show_spd1
 	jp	err_invalid
 show_spd1:
 	call	prtstr
@@ -267,6 +283,24 @@ usage:
 	or	$FF
 	ret
 ;
+; Handle Warm Boot
+;
+wboot:
+	ld	de,str_warmboot		; message
+	call	prtstr			; display it
+	ld	b,bf_sysreset		; system restart
+	ld	c,bf_sysres_warm	; warm start
+	call	$fff0			; call hbios
+;
+; Handle Cold Boot
+;
+cboot:
+	ld	de,str_coldboot		; message
+	call	prtstr			; display it
+	ld	b,bf_sysreset		; system restart
+	ld	c,bf_sysres_cold	; cold start
+	call	$fff0			; call hbios
+;
 ; Error Handlers
 ;
 err_una:
@@ -510,9 +544,6 @@ prtd3m2:
 	call	prtchr
 prtd3m3:
 	ret
-
-
-
 ;
 ; Get the next non-blank character from (HL).
 ;
@@ -665,7 +696,7 @@ delay1:
 ; Constants
 ;=======================================================================
 ;
-str_banner		.db	"RomWBW CPU Speed Selector v0.6, 29-Dec-2023",0
+str_banner		.db	"RomWBW CPU Speed Selector v1.0, 11-Sep-2024",0
 str_spacer		.db	"  ",0
 str_oscspd		.db	" MHz Oscillator",0
 str_cpuspd		.db	"  CPU speed is ",0
@@ -674,8 +705,11 @@ str_mhz			.db	" MHz",0
 str_slow		.db	" (Half)",0
 str_full		.db	" (Full)",0
 str_dbl			.db	" (Double)",0
+str_quad		.db	" (Quad)",0
 str_memws		.db	" Memory Wait State(s)",0
 str_iows		.db	" I/O Wait State(s)",0
+str_warmboot		.db	"\r\n\r\nWarm booting...",0
+str_coldboot		.db	"\r\n\r\nCold booting...",0
 str_err_una		.db	"  ERROR: UNA not supported by application",0
 str_err_inv		.db	"  ERROR: Invalid BIOS (signature missing)",0
 str_err_ver		.db	"  ERROR: Unexpected HBIOS version",0
@@ -684,8 +718,10 @@ str_err_not_sup		.db	"  ERROR: Platform or configuration does not support CPU sp
 str_err_invalid		.db	"  ERROR: Invalid configuration!",0
 str_err_api		.db	"  ERROR: HBIOS API error!",0
 str_usage		.db	"  Usage: CPUSPD <cpuspd>,<memws>,<iows>\r\n"
+			.db	"         CPUSPD (W)armBoot\r\n"
+			.db	"         CPUSPD (C)oldBoot\r\n"
 			.db	"\r\n"
-			.db	"         <cpuspd>: \"Half\", \"Full\", or \"Double\"\r\n"
+			.db	"         <cpuspd>: (H)alf | (F)ull | (D)ouble | (Q)uad\r\n"
 			.db	"         <memws>:  Memory wait states\r\n"
 			.db	"         <iows>:   I/O wait states\r\n"
 			.db	"\r\n"
diff --git a/Source/Apps/format.asm b/Source/Apps/format.asm
deleted file mode 100644
index 3021b958..00000000
--- a/Source/Apps/format.asm
+++ /dev/null
@@ -1,213 +0,0 @@
-;===============================================================================
-; FORMAT - DISK FORMAT UTILITY FOR ROMWBW ADAPTATION OF CP/M 2.2
-;===============================================================================
-;
-;	AUTHOR:  WAYNE WARTHEN (wwarthen@gmail.com)
-;_______________________________________________________________________________
-;
-; Usage:
-;   FORMAT D:
-;     ex: FORMAT		(display version and usage)
-;         FORMAT /?		(display version and usage)
-;         FORMAT C:		(format drive C:)
-;_______________________________________________________________________________
-;
-; Change Log:
-;_______________________________________________________________________________
-;
-; ToDo:
-;  1) Actually implement this
-;_______________________________________________________________________________
-;
-#include "../ver.inc"
-;
-;===============================================================================
-; Definitions
-;===============================================================================
-;
-stksiz	.equ	$40		; Working stack size
-;
-restart	.equ	$0000		; CP/M restart vector
-bdos	.equ	$0005		; BDOS invocation vector
-;;
-;stamp	.equ	$40		; loc of RomWBW CBIOS zero page stamp
-;
-;===============================================================================
-; Code Section
-;===============================================================================
-;
-;
-	.org	$100
-;
-	; setup stack (save old value)
-	ld	(stksav),sp	; save stack
-	ld	sp,stack	; set new stack
-;
-	; initialization
-	call	init		; initialize
-	jr	nz,exit		; abort if init fails
-;
-	; do the real work 
-	call	process		; parse and process command line
-	jr	nz,exit		; done if error or no action
-;
-exit:	; clean up and return to command processor
-	call	crlf		; formatting
-	ld	sp,(stksav)	; restore stack
-	jp	restart		; return to CP/M via restart
-	ret			; return to CP/M w/o restart
-;
-; Initialization
-;
-init:
-;
-	; locate start of cbios (function jump table)
-	ld	hl,(restart+1)	; load address of CP/M restart vector
-	ld	de,-3		; adjustment for start of table
-	add	hl,de		; HL now has start of table
-	ld	(bioloc),hl	; save it
-;
-	; check for UNA (UBIOS)
-	ld	a,($FFFD)	; fixed location of UNA API vector
-	cp	$C3		; jp instruction?
-	jr	nz,initx	; if not, not UNA
-	ld	hl,($FFFE)	; get jp address
-	ld	a,(hl)		; get byte at target address
-	cp	$FD		; first byte of UNA push ix instruction
-	jr	nz,initx	; if not, not UNA
-	inc	hl		; point to next byte
-	ld	a,(hl)		; get next byte
-	cp	$E5		; second byte of UNA push ix instruction
-	jr	nz,initx	; if not, not UNA
-	ld	hl,unamod	; point to UNA mode flag
-	ld	(hl),$FF	; set UNA mode flag
-;
-initx:
-;
-	xor	a
-	ret
-;
-; Process command line
-;
-process:
-	jr	usage
-;
-	xor	a
-	ret
-;
-usage:
-;
-	call	crlf		; formatting
-	ld	de,msgban1	; point to version message part 1
-	call	prtstr		; print it
-	ld	a,(unamod)	; get UNA flag
-	or	a		; set flags
-	ld	de,msghb	; point to HBIOS mode message
-	call	z,prtstr	; if not UNA, say so
-	ld	de,msgub	; point to UBIOS mode message
-	call	nz,prtstr	; if UNA, say so
-	call	crlf		; formatting
-	ld	de,msgban2	; point to version message part 2
-	call	prtstr		; print it
-	call	crlf2		; blank line
-	ld	de,msguse	; point to usage message
-	call	prtstr		; print it
-	xor	a		; signal success
-	ret			; and return
-;
-; Print character in A without destroying any registers
-;
-prtchr:
-	push	bc		; save registers
-	push	de
-	push	hl
-	ld	e,a		; character to print in E
-	ld	c,$02		; BDOS function to output a character
-	call	bdos		; do it
-	pop	hl		; restore registers
-	pop	de
-	pop	bc
-	ret
-;
-; Print a zero terminated string at (HL) without destroying any registers
-;
-prtstr:
-	push	de
-;
-prtstr1:
-	ld	a,(de)		; get next char
-	or	a
-	jr	z,prtstr2
-	call	prtchr
-	inc	de
-	jr	prtstr1
-;
-prtstr2:
-	pop	de		; restore registers
-	ret	
-;
-; Start a new line
-;
-crlf2:
-	call	crlf		; two of them
-crlf:
-	push	af		; preserve AF
-	ld	a,13		; <CR>
-	call	prtchr		; print it
-	ld	a,10		; <LF>
-	call	prtchr		; print it
-	pop	af		; restore AF
-	ret
-;
-; Invoke CBIOS function
-; The CBIOS function offset must be stored in the byte
-; following the call instruction.  ex:
-;	call	cbios
-;	.db	$0C		; offset of CONOUT CBIOS function
-;
-cbios:
-	ex	(sp),hl
-	ld	a,(hl)		; get the function offset
-	inc	hl		; point past value following call instruction
-	ex	(sp),hl		; put address back at top of stack and recover HL
-	ld	hl,(bioloc)	; address of CBIOS function table to HL
-	call	addhl		; determine specific function address
-	jp	(hl)		; invoke CBIOS
-;
-; Add the value in A to HL (HL := HL + A)
-;
-addhl:
-	add	a,l		; A := A + L
-	ld	l,a		; Put result back in L
-	ret	nc		; if no carry, we are done
-	inc	h		; if carry, increment H
-	ret			; and return
-;
-; Jump indirect to address in HL
-;
-jphl:
-	jp	(hl)
-;
-;===============================================================================
-; Storage Section
-;===============================================================================
-;
-bioloc	.dw	0		; CBIOS starting address
-;
-unamod	.db	0		; $FF indicates UNA UBIOS active
-;
-stksav	.dw	0		; stack pointer saved at start
-	.fill	stksiz,0	; stack
-stack	.equ	$		; stack top
-;
-msgban1	.db	"FORMAT v0.1a for RomWBW CP/M 2.2, 02-Sep-2017",0
-msghb	.db	" (HBIOS Mode)",0
-msgub	.db	" (UBIOS Mode)",0
-msgban2	.db	"Copyright (C) 2017, Wayne Warthen, GNU GPL v3",0
-msguse	.db	"FORMAT command is not yet implemented!",13,10,13,10
-	.db	"Use FDU command to physically format floppy diskettes",13,10
-	.db	"Use CLRDIR command to (re)initialize directories",13,10
-	.db	"Use SYSCOPY command to make disks bootable",13,10
-	.db	"Use FDISK80 command to partition mass storage media",0
-;
-	.end
diff --git a/Source/Apps/format/Build.cmd b/Source/Apps/format/Build.cmd
new file mode 100644
index 00000000..29301f5a
--- /dev/null
+++ b/Source/Apps/format/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF format.asm format.com format.lst || exit /b
+
+copy /Y format.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/format/Clean.cmd b/Source/Apps/format/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/format/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/format/Makefile b/Source/Apps/format/Makefile
new file mode 100644
index 00000000..fd1dea62
--- /dev/null
+++ b/Source/Apps/format/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = format.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/format/format.asm b/Source/Apps/format/format.asm
new file mode 100644
index 00000000..150cfd10
--- /dev/null
+++ b/Source/Apps/format/format.asm
@@ -0,0 +1,213 @@
+;===============================================================================
+; FORMAT - DISK FORMAT UTILITY FOR ROMWBW ADAPTATION OF CP/M 2.2
+;===============================================================================
+;
+;	AUTHOR:  WAYNE WARTHEN (wwarthen@gmail.com)
+;_______________________________________________________________________________
+;
+; Usage:
+;   FORMAT D:
+;     ex: FORMAT		(display version and usage)
+;         FORMAT /?		(display version and usage)
+;         FORMAT C:		(format drive C:)
+;_______________________________________________________________________________
+;
+; Change Log:
+;_______________________________________________________________________________
+;
+; ToDo:
+;  1) Actually implement this
+;_______________________________________________________________________________
+;
+#include "../../ver.inc"
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+stksiz	.equ	$40		; Working stack size
+;
+restart	.equ	$0000		; CP/M restart vector
+bdos	.equ	$0005		; BDOS invocation vector
+;;
+;stamp	.equ	$40		; loc of RomWBW CBIOS zero page stamp
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+;
+	.org	$100
+;
+	; setup stack (save old value)
+	ld	(stksav),sp	; save stack
+	ld	sp,stack	; set new stack
+;
+	; initialization
+	call	init		; initialize
+	jr	nz,exit		; abort if init fails
+;
+	; do the real work 
+	call	process		; parse and process command line
+	jr	nz,exit		; done if error or no action
+;
+exit:	; clean up and return to command processor
+	call	crlf		; formatting
+	ld	sp,(stksav)	; restore stack
+	jp	restart		; return to CP/M via restart
+	ret			; return to CP/M w/o restart
+;
+; Initialization
+;
+init:
+;
+	; locate start of cbios (function jump table)
+	ld	hl,(restart+1)	; load address of CP/M restart vector
+	ld	de,-3		; adjustment for start of table
+	add	hl,de		; HL now has start of table
+	ld	(bioloc),hl	; save it
+;
+	; check for UNA (UBIOS)
+	ld	a,($FFFD)	; fixed location of UNA API vector
+	cp	$C3		; jp instruction?
+	jr	nz,initx	; if not, not UNA
+	ld	hl,($FFFE)	; get jp address
+	ld	a,(hl)		; get byte at target address
+	cp	$FD		; first byte of UNA push ix instruction
+	jr	nz,initx	; if not, not UNA
+	inc	hl		; point to next byte
+	ld	a,(hl)		; get next byte
+	cp	$E5		; second byte of UNA push ix instruction
+	jr	nz,initx	; if not, not UNA
+	ld	hl,unamod	; point to UNA mode flag
+	ld	(hl),$FF	; set UNA mode flag
+;
+initx:
+;
+	xor	a
+	ret
+;
+; Process command line
+;
+process:
+	jr	usage
+;
+	xor	a
+	ret
+;
+usage:
+;
+	call	crlf		; formatting
+	ld	de,msgban1	; point to version message part 1
+	call	prtstr		; print it
+	ld	a,(unamod)	; get UNA flag
+	or	a		; set flags
+	ld	de,msghb	; point to HBIOS mode message
+	call	z,prtstr	; if not UNA, say so
+	ld	de,msgub	; point to UBIOS mode message
+	call	nz,prtstr	; if UNA, say so
+	call	crlf		; formatting
+	ld	de,msgban2	; point to version message part 2
+	call	prtstr		; print it
+	call	crlf2		; blank line
+	ld	de,msguse	; point to usage message
+	call	prtstr		; print it
+	xor	a		; signal success
+	ret			; and return
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	ret
+;
+; Print a zero terminated string at (HL) without destroying any registers
+;
+prtstr:
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	ret	
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Invoke CBIOS function
+; The CBIOS function offset must be stored in the byte
+; following the call instruction.  ex:
+;	call	cbios
+;	.db	$0C		; offset of CONOUT CBIOS function
+;
+cbios:
+	ex	(sp),hl
+	ld	a,(hl)		; get the function offset
+	inc	hl		; point past value following call instruction
+	ex	(sp),hl		; put address back at top of stack and recover HL
+	ld	hl,(bioloc)	; address of CBIOS function table to HL
+	call	addhl		; determine specific function address
+	jp	(hl)		; invoke CBIOS
+;
+; Add the value in A to HL (HL := HL + A)
+;
+addhl:
+	add	a,l		; A := A + L
+	ld	l,a		; Put result back in L
+	ret	nc		; if no carry, we are done
+	inc	h		; if carry, increment H
+	ret			; and return
+;
+; Jump indirect to address in HL
+;
+jphl:
+	jp	(hl)
+;
+;===============================================================================
+; Storage Section
+;===============================================================================
+;
+bioloc	.dw	0		; CBIOS starting address
+;
+unamod	.db	0		; $FF indicates UNA UBIOS active
+;
+stksav	.dw	0		; stack pointer saved at start
+	.fill	stksiz,0	; stack
+stack	.equ	$		; stack top
+;
+msgban1	.db	"FORMAT v0.1a for RomWBW CP/M 2.2, 02-Sep-2017",0
+msghb	.db	" (HBIOS Mode)",0
+msgub	.db	" (UBIOS Mode)",0
+msgban2	.db	"Copyright (C) 2017, Wayne Warthen, GNU GPL v3",0
+msguse	.db	"FORMAT command is not yet implemented!",13,10,13,10
+	.db	"Use FDU command to physically format floppy diskettes",13,10
+	.db	"Use CLRDIR command to (re)initialize directories",13,10
+	.db	"Use SYSCOPY command to make disks bootable",13,10
+	.db	"Use FDISK80 command to partition mass storage media",0
+;
+	.end
diff --git a/Source/Apps/mode.asm b/Source/Apps/mode.asm
deleted file mode 100644
index 0a52ee69..00000000
--- a/Source/Apps/mode.asm
+++ /dev/null
@@ -1,1039 +0,0 @@
-;===============================================================================
-; MODE - Display and/or modify device configuration
-;
-;===============================================================================
-;
-;	Author:  Wayne Warthen (wwarthen@gmail.com)
-;_______________________________________________________________________________
-;
-; Usage:
-;   MODE /?
-;   MODE COM<n>: [<baud>[,<parity>[,<databits>[,<stopbits>]]]] [/P]
-;
-;   <baud> is numerical baudrate
-;   <parity> is (N)one, (O)dd, (E)ven, (M)ark, or (S)pace
-;   <databits> is number of data bits, typically 7 or 8
-;   <stopbits> is number of stop bits, typically 1 or 2
-;   /P prompts user prior to setting new configuration
-;
-; Examples:
-;   MODE /?			(display command usage)
-;   MODE			(display configuration of all serial ports)
-;   MODE COM0:			(display configuration of serial unit 0)
-;   MODE COM1: 9600,N,8,1	(set serial unit 1 configuration)
-;
-; Notes:
-;   - Parameters not provided will remain unchanged
-;   - Device must support specified configuration
-;_______________________________________________________________________________
-;
-; Change Log:
-;   2017-08-16 [WBW] Initial release
-;   2017-08-28 [WBW] Handle UNACPM
-;   2018-07-24 [WBW] Fixed bug in getnum23 routine (credit Phil Summers)
-;_______________________________________________________________________________
-;
-; ToDo:
-;  1) Implement flow control settings
-;_______________________________________________________________________________
-;
-#include "../ver.inc"
-;
-;===============================================================================
-; Definitions
-;===============================================================================
-;
-stksiz	.equ	$40		; Working stack size
-;
-restart	.equ	$0000		; CP/M restart vector
-bdos	.equ	$0005		; BDOS invocation vector
-;
-ident	.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
-;
-bf_cioinit	.equ	$04	; HBIOS: CIOINIT function
-bf_cioquery	.equ	$05	; HBIOS: CIOQUERY function
-bf_ciodevice	.equ	$06	; HBIOS: CIODEVICE function
-bf_sysget	.equ	$F8	; HBIOS: SYSGET function
-;
-;===============================================================================
-; Code Section
-;===============================================================================
-;
-	.org	$100
-;
-	; setup stack (save old value)
-	ld	(stksav),sp	; save stack
-	ld	sp,stack	; set new stack
-;
-	; initialization
-	call	init		; initialize
-	jr	nz,exit		; abort if init fails
-;
-	; get the target device
-	call 	getdev		; parse device/id from command line
-	jr	nz,exit		; abort on error
-;
-	; process the configuration request
-	call 	process		; parse device/id from command line
-	jr	nz,exit		; abort on error
-;
-exit:	; clean up and return to command processor
-	call	crlf		; formatting
-	ld	sp,(stksav)	; restore stack
-	jp	restart		; return to CP/M via restart
-	ret			; return to CP/M w/o restart
-;
-; Initialization
-;
-init:
-	; locate start of cbios (function jump table)
-	ld	hl,(restart+1)	; load address of CP/M restart vector
-	ld	de,-3		; adjustment for start of table
-	add	hl,de		; HL now has start of table
-	ld	(bioloc),hl	; save it
-;
-	; check for UNA (UBIOS)
-	ld	a,($FFFD)	; fixed location of UNA API vector
-	cp	$C3		; jp instruction?
-	jr	nz,initwbw	; if not, not UNA
-	ld	hl,($FFFE)	; get jp address
-	ld	a,(hl)		; get byte at target address
-	cp	$FD		; first byte of UNA push ix instruction
-	jr	nz,initwbw	; if not, not UNA
-	inc	hl		; point to next byte
-	ld	a,(hl)		; get next byte
-	cp	$E5		; second byte of UNA push ix instruction
-	jr	nz,initwbw	; if not, not UNA
-;
-	; UNA initialization
-	ld	hl,unamod	; point to UNA mode flag
-	ld	(hl),$FF	; set UNA mode flag
-	ld	a,$FF		; assume max units for UNA
-	ld	(comcnt),a	; ... and save it
-	jr	initx		; UNA init done
-;
-initwbw:
-	; get location of config data and verify integrity
-	ld	hl,(ident)	; HL := adr or RomWBW HBIOS ident
-	ld	a,(hl)		; get first byte of RomWBW marker
-	cp	'W'		; match?
-	jp	nz,errinv	; abort with invalid config block
-	inc	hl		; next byte (marker byte 2)
-	ld	a,(hl)		; load it
-	cp	~'W'		; match?
-	jp	nz,errinv	; abort with invalid config block
-	inc	hl		; next byte (major/minor version)
-	ld	a,(hl)		; load it
-	cp	rmj << 4 | rmn	; match?
-	jp	nz,errver	; abort with invalid os version
-;
-	; RomWBW initialization
-	ld	b,bf_sysget	; BIOS SYSGET function
-	ld	c,$00		; CIOCNT subfunction
-	rst	08		; E := serial device unit count
-	ld	a,e		; count to A
-	ld	(comcnt),a	; save it
-;
-initx
-	; initialization complete
-	xor	a		; signal success
-	ret			; return
-;
-; Get target device specification (e.g., "COM1:") and save
-; as devicetype/id.
-;
-getdev:
-	; skip to start of first parm
-	ld	ix,$81		; point to start of parm area (past len byte)
-	call	nonblank	; skip to next non-blank char
-	jp	z,prtcomall	; no parms, show all active ports
-;
-getdev1:
-	; process options (if any)
-	cp	'/'		; option prefix?
-	jr	nz,getdev2	; not an option, continue
-	call	option		; process option
-	ret	nz		; some options mean we are done (e.g., "/?")
-	inc	ix		; skip option character
-	call 	nonblank	; skip whitespace
-	jr	getdev1		; continue option checking
-;
-getdev2:
-	; parse device mnemonic (e.g., "COM1") into tmpstr
-	call	getalpha	; extract alpha portion (e.g., "COM")
-	call	getnum		; extract numeric portion
-	jp	c,errunt	; handle overflow as invalid unit
-	ld	(unit),a	; save as unit number
-;
-	; skip terminating ':' in device spec
-	ld	a,(ix)		; get current char
-	cp	':'		; colon?
-	jr	nz,getdev3	; done if no colon
-	inc	ix		; otherwise, skip the colon
-;
-getdev3:
-	call	nonblank	; gobble any remaining whitespace
-	xor	a		; indicate success
-	ret			; and return
-;
-; Process device
-;
-process:
-	; match and branch according to device mnemonic
-	ld	hl,tmpstr	; point to start of extracted string
-	ld	de,strcom	; point to "COM" string
-	call	strcmp		; and compare
-	jp	z,comset	; handle COM port configuration
-	jp	errdev		; abort if bad device name
-;
-; Display or change serial port configuration
-;
-comset:
-	; check for valid unit number
-	ld	hl,comcnt	; point to com device unit count
-	ld	a,(unit)	; get com device unit count
-	cp	(hl)		; compare to count (still in E)
-	jr	c,comset1	; unit < count, continue
-	jp	errunt		; handle unit number error
-;
-comset1:
-	call	ldcom		; load config for port
-;
-	ld	a,(comatr)	; get attributes
-	bit	7,a		; terminal?
-	jp	nz,prtcom	; terminal not configurable
-;
-	ld	a,(ix)		; get current char
-	cp	0		; nothing more?
-	jp	z,prtcom	; no config parms, print current device config
-;
-	; parse and update baudrate
-	ld	a,(ix)		; get current byte
-	cp	'0'		; check for
-	jr	c,comset1a	; ... valid digit
-	cp	'9'+1		; ... else jump ahead
-	jr	nc,comset1a	; ... to handle empty
-;
-	call	getnum32	; get baud rate into DE:HL
-	jp	c,errcfg	; Handle overflow error
-	ld	c,75		; Constant for baud rate encode
-	call	encode		; encode into C:4-0
-	jp	nz,errcfg	; Error if encode fails
-	ld	a,(comcfg+1)	; Get high byte of config
-	and	%11100000	; strip out old baud rate bits
-	or	c		; insert new baud rate bits
-	ld	(comcfg+1),a	; save it
-;
-comset1a:
-	; parse and update parity
-	call	nonblank	; skip blanks
-	jp	z,comset9	; end of parms
-	cp	','		; comma, as expected?
-	jp	nz,comset8	; check for trailing options
-	inc	ix		; skip comma
-	call	nonblank	; skip possible blanks
-	call	ucase
-	; lookup parity value
-	ld	c,0
-	cp	'N'
-	jr	z,comset2
-	ld	c,1
-	cp	'O'
-	jr	z,comset2
-	ld	c,3
-	cp	'E'
-	jr	z,comset2
-	ld	c,5
-	cp	'M'
-	jr	z,comset2
-	ld	c,7
-	cp	'S'
-	jr	z,comset2
-	jr	comset3		; unexpected parity char, possibly empty
-;
-comset2:
-	; update parity value
-	ld	a,c		; new parity value to A
-	rlca			; rotate to bits 5-3
-	rlca			;
-	rlca			;
-	ld	c,a		; and back to C
-	ld	a,(comcfg)	; parity is in comcfg:5-3
-	and	%11000111	; strip old value
-	or	c		; apply new value
-	ld	(comcfg),a	; and save it
-	inc	ix		; bump past parity char
-;
-comset3:
-	; parse & update data bits
-	call	nonblank	; skip blanks
-	jr	z,comset9	; end of parms
-	cp	','		; comma, as expected?
-	jr	nz,comset8	; check for trailing options
-	inc	ix		; skip comma
-	call	nonblank	; skip possible blanks
-	sub	'5'		; normalize value
-	cp	4		; value should now be 0-3
-	jr	nc,comset4	; unexpected, possibly empty
-	ld	c,a		; move new value to C
-	ld	a,(comcfg)	; data bits is in comcfg:1-0
-	and	%11111100	; strip old value
-	or	c		; apply new value
-	ld	(comcfg),a	; and save it
-	inc	ix		; bump past data bits char
-;
-comset4:
-	; parse & update stop bits
-	call	nonblank	; skip blanks
-	jr	z,comset9	; end of parms
-	cp	','		; comma, as expected?
-	jr	nz,comset8	; check for trailing options
-	inc	ix		; skip comma
-	call	nonblank	; skip possible blanks
-	sub	'1'		; normalize value
-	cp	2		; value should now be 0-1
-	jr	nc,comset8	; unexpected, possibly empty
-	rlca			; rotate to bit 2
-	rlca
-	ld	c,a		; move new value to C
-	ld	a,(comcfg)	; stop bit is in comcfg:2
-	and	%11111011	; strip old value
-	or	c		; apply new value
-	ld	(comcfg),a	; and save it
-	inc	ix		; bump past stop bits char
-;
-comset8:
-	; trailing options
-	call	nonblank	; skip blanks
-	jr	z,comset9	; end of parms
-	cp	'/'		; option introducer?
-	jp	nz,errprm	; parameter error
-	inc	ix		; bump part '/'
-	ld	a,(ix)		; get character
-	call	ucase		; make upper case
-	cp	'P'		; only valid option
-	jp	nz,errprm	; parameter error
-	ld	a,$FF		; set prompt value on
-	ld	(pflag),a	; save it
-	inc	ix		; bump past character
-	jr	comset8		; process more parms
-;
-comset9:
-	; display new config
-	ld	de,(comcfg)	; get new config
-	call	prtcom		; print it
-	ld	a,(pflag)	; get prompt flag
-	or	a		; set flags
-	jr	z,comset9b	; bypass if not requested
-	call	crlf2		; spacing
-	ld	de,indent	; indent
-	call	prtstr		; do it
-	ld	de,msgpmt	; point to prmopt message
-	call	prtstr		; print it
-;
-	ld	b,64
-comset9a:
-	xor	a
-	call	prtchr
-	djnz	comset9a
-;
-comset9b:
-	; check for UNA
-	ld	a,(unamod)	; get UNA flag
-	or	a		; set flags
-	jr	nz,comsetu	; go to UNA variant
-;
-	; implement new config
-	ld	de,(comcfg)	; get new config value to DE
-	ld	b,bf_cioinit	; BIOS serial init
-	ld	a,(unit)	; get serial device unit
-	ld	c,a		; ... into C
-	rst	08		; call HBIOS
-	jp	nz,errcfg	; handle error
-	jr	comsetx		; common exit
-;
-comsetu:
-	; implement new config under UNA
-	ld	de,(comcfg)	; get new config value to DE
-	ld	c,$10		; UNA INIT function
-	ld	a,(unit)	; get serial device unit
-	ld	b,a		; ... into B
-	rst	08		; call HBIOS
-	jp	nz,errcfg	; handle error
-	jr	comsetx		; common exit
-;
-comsetx:
-	ld	a,(pflag)	; get prompt flag
-	or	a		; set flags
-	jr	z,comsetx2	; bypass if not requested
-comsetx1:
-	ld	c,$01		; console read
-	call	bdos		; do it
-	cp	$0D		; CR?
-	jr	nz,comsetx1	; loop as needed
-;
-comsetx2:
-	xor	a
-	ret
-;
-; Print configuration of all serial ports
-;
-prtcomall:
-	ld	a,(comcnt)	; get com device unit count
-	ld	b,a		; init B as loop counter
-	ld	c,0		; init C as unit index
-;
-prtcomall1:
-	push	bc		; save loop control
-;
-	; get port info
-	ld	a,c		; put unit number
-	ld	(unit),a	; ... into unit
-	call	ldcom		; get config
-	jr	z,prtcomall2	; no error, continue
-	pop	bc		; unwind stack
-	ret			; and return with NZ
-;
-prtcomall2:
-	; print config for port
-	call	prtcom		; print line for this port
-;
-	; loop as needed
-	pop	bc		; restore loop control
-	inc	c		; next unit index
-	djnz	prtcomall1	; loop till done
-;
-	or	$FF		; indicate nothing more to do
-	ret			; finished
-;
-; Print configuration of serial port
-;
-prtcom:
-	; print leader (e.g., "COM0: ")
-	call	crlf
-	ld	de,indent
-	call	prtstr
-	ld	de,strcom
-	call	prtstr
-	ld	a,(unit)
-	call	prtdecb
-	ld	a,':'
-	call	prtchr
-	ld	a,' '
-	call	prtchr
-;
-	ld	a,(comatr)	; get attribute byte
-	bit	7,a		; 0=RS232, 1=terminal
-	jr	z,prtcom1	; handle serial port configuration
-;
-	; this is a terminal, just say so
-	ld	de,strterm	; point to string
-	call	prtstr		; print it
-	ret			; and return
-;
-prtcom1:
-	ld	de,(comcfg)	; load config to DE
-;
-	; print baud rate
-	push	de		; save it
-	ld	a,d		; baud rate is in D
-	and	$1F		; ... bits 4-0
-	ld	l,a		; move to L
-	ld	h,0		; setup H for decode routine
-	ld	de,75		; set DE to baud rate decode constant
-	call	decode		; decode baud rate, DE:HL := baud rate
-	ld	bc,bcdtmp	; point to temp bcd buffer
-	call	bin2bcd		; convert baud to BCD
-	call	prtbcd		; and print in decimal
-	pop	de		; restore line characteristics
-;
-	; print parity
-	ld	a,','		; A := comma
-	call	prtchr		; ... print it
-	ld	a,e		; E has parity config
-	rrca			; isolate bits 5-3
-	rrca			; ...
-	rrca			; ...
-	and	$07		; ...
-	ld	hl,parmap	; HL := start of parity char table
-	call	addhl		; index into table
-	ld	a,(hl)		; get resulting parity char
-	call	prtchr		; and print
-;
-	; print data bits
-	ld	a,','		; A := comma
-	call	prtchr		; ... print it
-	ld	a,e		; E has data bits config
-	and	$03		; isloate bits 1-0
-	add	A,'5'		; convert to printable char
-	call	prtchr		; and print it
-;
-	; print stop bits
-	ld	a,','		; A := comma
-	call	prtchr		; ... print it
-	ld	a,e		; E has stop bits config
-	rrca			; isolate bit 2
-	rrca			; ...
-	and	$01		; ...
-	add	A,'1'		; convert to printable char
-	call	prtchr		; and print it
-;
-	ret
-;
-; Load serial device info for specific unit
-;
-ldcom:
-	ld	a,(unamod)	; get UNA flag
-	or	a		; set flags
-	jr	nz,ldcomu	; go to UNA variant
-;
-	; get device type info
-	ld	a,(unit)	; get unit
-	ld	b,bf_ciodevice	; BIOS device call
-	ld	c,a		; ... and put in C
-	rst	08		; call HBIOS, C := attributes
-	ret	nz		; return on error
-	ld	a,c		; attributes to A
-	ld	(comatr),a	; save it
-;
-	; get serial port config
-	ld	b,bf_cioquery	; BIOS serial device query
-	ld	a,(unit)	; get device unit num
-	ld	c,a		; ... and put in C
-	rst	08		; call H/UBIOS, DE := line characteristics
-	ret	nz		; abort on error
-	ld	(comcfg),de	; save config
-;
-	xor	a		; success
-	ret
-;
-ldcomu:	; UNA variant
-	xor	a		; assume attribtues zero
-	ld	(comatr),a	; save it
-	; get device info
-	ld	a,(unit)	; get unit
-	ld	b,a		; put unit in B
-	ld	c,$18		; UNA Get line/driver info func
-	rst	08		; call H/UBIOS, DE := line characteristics
-	ld	a,c		
-	or	a
-	jr	z,ldcomu1
-	cp	$43		; $43 is OK for now (tell John about this)
-	jr	z,ldcomu1
-	ret			; return w/ NZ indicating error
-;
-ldcomu1:
-	ld	(comcfg),de	; save config
-;
-	xor	a		; success
-	ret
-	
-;
-; Handle special options
-;
-option:
-;
-	inc	ix		; next char
-	ld	a,(ix)		; get it
-	cp	'?'		; is it a '?' as expected?
-	jp	z,usage		; yes, display usage
-;	cp	'L'		; is it a 'L', display device list?
-;	jp	z,devlist	; yes, display device list
-	jp	errprm		; anything else is an error
-;
-; Display usage
-;
-usage:
-;
-	call	crlf		; formatting
-	ld	de,msgban1	; point to version message part 1
-	call	prtstr		; print it
-	ld	a,(unamod)	; get UNA flag
-	or	a		; set flags
-	ld	de,msghb	; point to HBIOS mode message
-	call	z,prtstr	; if not UNA, say so
-	ld	de,msgub	; point to UBIOS mode message
-	call	nz,prtstr	; if UNA, say so
-	call	crlf		; formatting
-	ld	de,msgban2	; point to version message part 2
-	call	prtstr		; print it
-	call	crlf2		; blank line
-	ld	de,msguse	; point to usage message
-	call	prtstr		; print it
-	or	$FF		; signal no action performed
-	ret			; and return
-;
-; Print character in A without destroying any registers
-;
-prtchr:
-	push	bc		; save registers
-	push	de
-	push	hl
-	ld	e,a		; character to print in E
-	ld	c,$02		; BDOS function to output a character
-	call	bdos		; do it
-	pop	hl		; restore registers
-	pop	de
-	pop	bc
-	ret
-;
-prtdot:
-;
-	; shortcut to print a dot preserving all regs
-	push	af		; save af
-	ld	a,'.'		; load dot char
-	call	prtchr		; print it
-	pop	af		; restore af
-	ret			; done
-;
-; Print a zero terminated string at (DE) without destroying any registers
-;
-prtstr:
-	push	de
-;
-prtstr1:
-	ld	a,(de)		; get next char
-	or	a
-	jr	z,prtstr2
-	call	prtchr
-	inc	de
-	jr	prtstr1
-;
-prtstr2:
-	pop	de		; restore registers
-	ret	
-;
-; Print the value in A in hex without destroying any registers
-;
-prthex:
-	push	af		; save AF
-	push	de		; save DE
-	call	hexascii	; convert value in A to hex chars in DE
-	ld	a,d		; get the high order hex char
-	call	prtchr		; print it
-	ld	a,e		; get the low order hex char
-	call	prtchr		; print it
-	pop	de		; restore DE
-	pop	af		; restore AF
-	ret			; done
-;
-; print the hex word value in bc
-;
-prthexword:
-	push	af
-	ld	a,b
-	call	prthex
-	ld	a,c
-	call	prthex 
-	pop	af
-	ret
-;
-; print the hex dword value in de:hl
-;
-prthex32:
-	push	bc
-	push	de
-	pop	bc
-	call	prthexword
-	push	hl
-	pop	bc
-	call	prthexword
-	pop	bc
-	ret
-;
-; Convert binary value in A to ascii hex characters in DE
-;
-hexascii:
-	ld	d,a		; save A in D
-	call	hexconv		; convert low nibble of A to hex
-	ld	e,a		; save it in E
-	ld	a,d		; get original value back
-	rlca			; rotate high order nibble to low bits
-	rlca
-	rlca
-	rlca
-	call	hexconv		; convert nibble
-	ld	d,a		; save it in D
-	ret			; done
-;
-; Convert low nibble of A to ascii hex
-;
-hexconv:
-	and	$0F	     	; low nibble only
-	add	a,$90
-	daa	
-	adc	a,$40
-	daa	
-	ret
-;
-; Print value of A or HL in decimal with leading zero suppression
-; Use prtdecb for A or prtdecw for HL
-;
-prtdecb:
-	push	hl
-	ld	h,0
-	ld	l,a
-	call	prtdecw		; print it
-	pop	hl
-	ret
-;
-prtdecw:
-	push	af
-	push	bc
-	push	de
-	push	hl
-	call	prtdec0
-	pop	hl
-	pop	de
-	pop	bc
-	pop	af
-	ret
-;
-prtdec0:
-	ld	e,'0'
-	ld	bc,-10000
-	call	prtdec1
-	ld	bc,-1000
-	call	prtdec1
-	ld	bc,-100
-	call	prtdec1
-	ld	c,-10
-	call	prtdec1
-	ld	e,0
-	ld	c,-1
-prtdec1:
-	ld	a,'0' - 1
-prtdec2:
-	inc	a
-	add	hl,bc
-	jr	c,prtdec2
-	sbc	hl,bc
-	cp	e
-	ret	z
-	ld	e,0
-	call	prtchr
-	ret
-;
-; Start a new line
-;
-crlf2:
-	call	crlf		; two of them
-crlf:
-	push	af		; preserve AF
-	ld	a,13		; <CR>
-	call	prtchr		; print it
-	ld	a,10		; <LF>
-	call	prtchr		; print it
-	pop	af		; restore AF
-	ret
-;
-; Get the next non-blank character from (HL).
-;
-nonblank:
-	ld	a,(ix)		; load next character
-	or	a		; string ends with a null
-	ret	z		; if null, return pointing to null
-	cp	' '		; check for blank
-	ret	nz		; return if not blank
-	inc	ix		; if blank, increment character pointer
-	jr	nonblank	; and loop
-;
-; Get alpha chars and save in tmpstr
-; Length of string returned in A
-;
-getalpha:
-;
-	ld	hl,tmpstr	; location to save chars
-	ld	b,8		; length counter (tmpstr max chars)
-	ld	c,0		; init character counter
-;
-getalpha1:
-	ld	a,(ix)		; get active char
-	call	ucase		; lower case -> uppper case, if needed
-	cp	'A'		; check for start of alpha range
-	jr	c,getalpha2	; not alpha, get out
-	cp	'Z' + 1		; check for end of alpha range
-	jr	nc,getalpha2	; not alpha, get out
-	; handle alpha char
-	ld	(hl),a		; save it
-	inc	c		; bump char count
-	inc	hl		; inc string pointer
-	inc	ix		; increment buffer ptr
-	djnz	getalpha1	; if space, loop for more chars
-;
-getalpha2:	; non-alpha, clean up and return
-	ld	(hl),0		; terminate string
-	ld	a,c		; string length to A
-	or	a		; set flags
-	ret			; and return
-;
-; Get numeric chars and convert to number returned in A
-; Carry flag set on overflow
-;
-getnum:
-	ld	c,0		; C is working register
-getnum1:
-	ld	a,(ix)		; get the active char
-	cp	'0'		; compare to ascii '0'
-	jr	c,getnum2	; abort if below
-	cp	'9' + 1		; compare to ascii '9'
-	jr	nc,getnum2	; abort if above
-;
-	; valid digit, add new digit to C
-	ld	a,c		; get working value to A
-	rlca			; multiply by 10
-	ret	c		; overflow, return with carry set
-	rlca			; ...
-	ret	c		; overflow, return with carry set
-	add	a,c		; ...
-	ret	c		; overflow, return with carry set
-	rlca			; ...
-	ret	c		; overflow, return with carry set
-	ld	c,a		; back to C
-	ld	a,(ix)		; get new digit
-	sub	'0'		; make binary
-	add	a,c		; add in working value
-	ret	c		; overflow, return with carry set
-	ld	c,a		; back to C
-;
-	inc	ix		; bump to next char
-	jr	getnum1		; loop
-;
-getnum2:	; return result
-	ld	a,c		; return result in A
-	or	a		; with flags set, CF is cleared
-	ret
-;
-; Get numeric chars and convert to 32-bit number returned in DE:HL
-; Carry flag set on overflow
-;
-getnum32:
-	ld	de,0		; Initialize DE:HL
-	ld	hl,0		; ... to zero
-getnum32a:
-	ld	a,(ix)		; get the active char
-	cp	'0'		; compare to ascii '0'
-	jr	c,getnum32c	; abort if below
-	cp	'9' + 1		; compare to ascii '9'
-	jr	nc,getnum32c	; abort if above
-;
-	; valid digit, multiply DE:HL by 10
-	; X * 10 = (((x * 2 * 2) + x)) * 2
-	push	de
-	push	hl
-;	
-	call	getnum32e	; DE:HL *= 2
-	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
-;	
-	call	getnum32e	; DE:HL *= 2
-	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
-;
-	pop	bc		; DE:HL += X
-	add	hl,bc
-	ex	de,hl
-	pop	bc
-	adc	hl,bc
-	ex	de,hl
-	ret	c		; if overflow, ret w/ CF
-;	
-	call	getnum32e	; DE:HL *= 2
-	ret	c		; if overflow, ret w/ CF
-;
-	; now add in new digit
-	ld	a,(ix)		; get the active char
-	sub	'0'		; make it binary
-	add	a,l		; add to L, CF updated
-	ld	l,a		; back to L
-	jr	nc,getnum32b	; if no carry, done
-	inc	h		; otherwise, bump H
-	jr	nz,getnum32b	; if no overflow, done
-	inc	e		; otherwise, bump E
-	jr	nz,getnum32b	; if no overflow, done
-	inc	d		; otherwise, bump D
-	jr	nz,getnum32b	; if no overflow, done
-	scf			; set carry flag to indicate overflow
-	ret			; and return
-;
-getnum32b:
-	inc	ix		; bump to next char
-	jr	getnum32a	; loop
-;
-getnum32c:
-	; successful completion
-	xor	a		; clear flags
-	ret			; and return
-;
-getnum32d:
-	; special overflow exit with stack fixup
-	pop	hl		; burn 2
-	pop	hl		; ... stack entries
-	ret			; and return
-;
-getnum32e:
-	; DE:HL := DE:HL * 2
-	sla	l
-	rl	h
-	rl	e
-	rl	d
-	ret
-;
-; Compare null terminated strings at HL & DE
-; If equal return with Z set, else NZ
-;
-strcmp:
-	ld	a,(de)		; get current source char
-	cp	(hl)		; compare to current dest char
-	ret	nz		; compare failed, return with NZ
-	or	a		; set flags
-	ret	z		; end of string, match, return with Z set
-	inc	de		; point to next char in source
-	inc	hl		; point to next char in dest
-	jr	strcmp		; loop till done
-;
-; Convert character in A to uppercase
-;
-ucase:
-	cp	'a'		; if below 'a'
-	ret	c		; ... do nothing and return
-	cp	'z' + 1		; if above 'z'
-	ret	nc		; ... do nothing and return
-	res	5,a		; clear bit 5 to make lower case -> upper case
-	ret			; and return
-;
-; Add the value in A to HL (HL := HL + A)
-;
-addhl:
-	add	a,l		; A := A + L
-	ld	l,a		; Put result back in L
-	ret	nc		; if no carry, we are done
-	inc	h		; if carry, increment H
-	ret			; and return
-;
-; Integer divide DE:HL by C
-; result in DE:HL, remainder in A
-; clobbers F, B
-;
-div32x8:
-	xor	a
-	ld	b,32
-div32x8a:
-  	add	hl,hl
-	rl	e
-	rl	d
-	rla
-	cp	c
-	jr	c,div32x8b
-	sub	c
-	inc	l
-div32x8b:
-  	djnz	div32x8a
-	ret
-;
-; Jump indirect to address in HL
-;
-jphl:
-	jp	(hl)
-;
-; Errors
-;
-erruse:	; command usage error (syntax)
-	ld	de,msguse
-	jr	err
-;
-errprm:	; command parameter error (syntax)
-	ld	de,msgprm
-	jr	err
-;
-errinv:	; invalid HBIOS, signature not found
-	ld	de,msginv
-	jr	err
-;
-errver:	; unsupported HBIOS version
-	ld	de,msgver
-	jr	err
-;
-errdev:	; invalid device name
-	ld	de,msgdev
-	jr	err
-;
-errnum:	; invalid number parsed, overflow
-	ld	de,msgnum
-	jr	err
-;
-errunt:	; Invalid device unit specified
-	ld	de,msgunt
-	jr	err
-;
-errcfg:	; Invalid device configuration specified
-	ld	de,msgcfg
-	jr	err
-;
-err:	; print error string and return error signal
-	call	crlf2		; print newline
-;
-err1:	; without the leading crlf
-	call	prtstr		; print error string
-;
-err2:	; without the string
-;	call	crlf		; print newline
-	or	$FF		; signal error
-	ret			; done
-;
-;===============================================================================
-; Utility modules
-;===============================================================================
-;
-#include "encode.asm"
-#include "decode.asm"
-#include "bcd.asm"
-;
-;===============================================================================
-; Storage Section
-;===============================================================================
-;
-;
-bioloc	.dw	0		; CBIOS starting address
-unit	.db	0		; source unit
-;
-unamod	.db	0		; $FF indicates UNA UBIOS active
-;
-tmpstr	.fill	9,0		; temporary string of up to 8 chars, zero term
-bcdtmp	.fill	5,0		; temporary bcd number storage
-;
-comcnt	.db	0		; count of com ports
-comatr	.db	0		; com port attributes
-comcfg	.dw	0		; com port configuration
-;
-parmap	.db	"NONENMNS"	; parity character lookup table
-;
-pflag	.db	0		; $FF indicates prompt option set
-;
-strcom	.db	"COM",0		; serial device name string
-strterm	.db	"VDU",0		; terminal device string
-;
-stksav	.dw	0		; stack pointer saved at start
-	.fill	stksiz,0	; stack
-stack	.equ	$		; stack top
-;
-; Messages
-;
-indent	.db	"   ",0
-msgban1	.db	"MODE v1.2, 24-Jul-2018",0
-msghb	.db	" [HBIOS]",0
-msgub	.db	" [UBIOS]",0
-msgban2	.db	"Copyright (C) 2017, Wayne Warthen, GNU GPL v3",0
-msguse	.db	"Usage: MODE COM<n>: [<baud>[,<parity>[,<databits>[,<stopbits>]]]] [/P]",13,10
-	.db	"  ex. MODE /?                (display version and usage)",13,10
-	.db	"      MODE                   (display config of all serial ports)",13,10
-	.db	"      MODE COM0:             (display serial unit 0 config)",13,10
-	.db	"      MODE COM1: 9600,N,8,1  (set serial unit 1 config)",0
-msgprm	.db	"Parameter error (MODE /? for usage)",0
-msginv	.db	"Invalid BIOS (signature missing)",0
-msgver	.db	"Unexpected HBIOS version",0
-msgdev	.db	"Invalid device name",0
-msgnum	.db	"Unit or slice number invalid",0
-msgunt	.db	"Invalid device unit number specified",0
-msgcfg	.db	"Invalid device configuration specified",0
-msgpmt	.db	"Prepare line then press <return>",0
-;
-	.end
diff --git a/Source/Apps/mode/Build.cmd b/Source/Apps/mode/Build.cmd
new file mode 100644
index 00000000..2829ee8c
--- /dev/null
+++ b/Source/Apps/mode/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF mode.asm mode.com mode.lst || exit /b
+
+copy /Y mode.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/mode/Clean.cmd b/Source/Apps/mode/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/mode/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/mode/Makefile b/Source/Apps/mode/Makefile
new file mode 100644
index 00000000..ba868101
--- /dev/null
+++ b/Source/Apps/mode/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = mode.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/bcd.asm b/Source/Apps/mode/bcd.asm
similarity index 100%
rename from Source/Apps/bcd.asm
rename to Source/Apps/mode/bcd.asm
diff --git a/Source/Apps/decode.asm b/Source/Apps/mode/decode.asm
similarity index 100%
rename from Source/Apps/decode.asm
rename to Source/Apps/mode/decode.asm
diff --git a/Source/Apps/encode.asm b/Source/Apps/mode/encode.asm
similarity index 100%
rename from Source/Apps/encode.asm
rename to Source/Apps/mode/encode.asm
diff --git a/Source/Apps/mode/mode.asm b/Source/Apps/mode/mode.asm
new file mode 100644
index 00000000..45f3a91f
--- /dev/null
+++ b/Source/Apps/mode/mode.asm
@@ -0,0 +1,1039 @@
+;===============================================================================
+; MODE - Display and/or modify device configuration
+;
+;===============================================================================
+;
+;	Author:  Wayne Warthen (wwarthen@gmail.com)
+;_______________________________________________________________________________
+;
+; Usage:
+;   MODE /?
+;   MODE COM<n>: [<baud>[,<parity>[,<databits>[,<stopbits>]]]] [/P]
+;
+;   <baud> is numerical baudrate
+;   <parity> is (N)one, (O)dd, (E)ven, (M)ark, or (S)pace
+;   <databits> is number of data bits, typically 7 or 8
+;   <stopbits> is number of stop bits, typically 1 or 2
+;   /P prompts user prior to setting new configuration
+;
+; Examples:
+;   MODE /?			(display command usage)
+;   MODE			(display configuration of all serial ports)
+;   MODE COM0:			(display configuration of serial unit 0)
+;   MODE COM1: 9600,N,8,1	(set serial unit 1 configuration)
+;
+; Notes:
+;   - Parameters not provided will remain unchanged
+;   - Device must support specified configuration
+;_______________________________________________________________________________
+;
+; Change Log:
+;   2017-08-16 [WBW] Initial release
+;   2017-08-28 [WBW] Handle UNACPM
+;   2018-07-24 [WBW] Fixed bug in getnum23 routine (credit Phil Summers)
+;_______________________________________________________________________________
+;
+; ToDo:
+;  1) Implement flow control settings
+;_______________________________________________________________________________
+;
+#include "../../ver.inc"
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+stksiz	.equ	$40		; Working stack size
+;
+restart	.equ	$0000		; CP/M restart vector
+bdos	.equ	$0005		; BDOS invocation vector
+;
+ident	.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
+;
+bf_cioinit	.equ	$04	; HBIOS: CIOINIT function
+bf_cioquery	.equ	$05	; HBIOS: CIOQUERY function
+bf_ciodevice	.equ	$06	; HBIOS: CIODEVICE function
+bf_sysget	.equ	$F8	; HBIOS: SYSGET function
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+	.org	$100
+;
+	; setup stack (save old value)
+	ld	(stksav),sp	; save stack
+	ld	sp,stack	; set new stack
+;
+	; initialization
+	call	init		; initialize
+	jr	nz,exit		; abort if init fails
+;
+	; get the target device
+	call 	getdev		; parse device/id from command line
+	jr	nz,exit		; abort on error
+;
+	; process the configuration request
+	call 	process		; parse device/id from command line
+	jr	nz,exit		; abort on error
+;
+exit:	; clean up and return to command processor
+	call	crlf		; formatting
+	ld	sp,(stksav)	; restore stack
+	jp	restart		; return to CP/M via restart
+	ret			; return to CP/M w/o restart
+;
+; Initialization
+;
+init:
+	; locate start of cbios (function jump table)
+	ld	hl,(restart+1)	; load address of CP/M restart vector
+	ld	de,-3		; adjustment for start of table
+	add	hl,de		; HL now has start of table
+	ld	(bioloc),hl	; save it
+;
+	; check for UNA (UBIOS)
+	ld	a,($FFFD)	; fixed location of UNA API vector
+	cp	$C3		; jp instruction?
+	jr	nz,initwbw	; if not, not UNA
+	ld	hl,($FFFE)	; get jp address
+	ld	a,(hl)		; get byte at target address
+	cp	$FD		; first byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+	inc	hl		; point to next byte
+	ld	a,(hl)		; get next byte
+	cp	$E5		; second byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+;
+	; UNA initialization
+	ld	hl,unamod	; point to UNA mode flag
+	ld	(hl),$FF	; set UNA mode flag
+	ld	a,$FF		; assume max units for UNA
+	ld	(comcnt),a	; ... and save it
+	jr	initx		; UNA init done
+;
+initwbw:
+	; get location of config data and verify integrity
+	ld	hl,(ident)	; HL := adr or RomWBW HBIOS ident
+	ld	a,(hl)		; get first byte of RomWBW marker
+	cp	'W'		; match?
+	jp	nz,errinv	; abort with invalid config block
+	inc	hl		; next byte (marker byte 2)
+	ld	a,(hl)		; load it
+	cp	~'W'		; match?
+	jp	nz,errinv	; abort with invalid config block
+	inc	hl		; next byte (major/minor version)
+	ld	a,(hl)		; load it
+	cp	rmj << 4 | rmn	; match?
+	jp	nz,errver	; abort with invalid os version
+;
+	; RomWBW initialization
+	ld	b,bf_sysget	; BIOS SYSGET function
+	ld	c,$00		; CIOCNT subfunction
+	rst	08		; E := serial device unit count
+	ld	a,e		; count to A
+	ld	(comcnt),a	; save it
+;
+initx
+	; initialization complete
+	xor	a		; signal success
+	ret			; return
+;
+; Get target device specification (e.g., "COM1:") and save
+; as devicetype/id.
+;
+getdev:
+	; skip to start of first parm
+	ld	ix,$81		; point to start of parm area (past len byte)
+	call	nonblank	; skip to next non-blank char
+	jp	z,prtcomall	; no parms, show all active ports
+;
+getdev1:
+	; process options (if any)
+	cp	'/'		; option prefix?
+	jr	nz,getdev2	; not an option, continue
+	call	option		; process option
+	ret	nz		; some options mean we are done (e.g., "/?")
+	inc	ix		; skip option character
+	call 	nonblank	; skip whitespace
+	jr	getdev1		; continue option checking
+;
+getdev2:
+	; parse device mnemonic (e.g., "COM1") into tmpstr
+	call	getalpha	; extract alpha portion (e.g., "COM")
+	call	getnum		; extract numeric portion
+	jp	c,errunt	; handle overflow as invalid unit
+	ld	(unit),a	; save as unit number
+;
+	; skip terminating ':' in device spec
+	ld	a,(ix)		; get current char
+	cp	':'		; colon?
+	jr	nz,getdev3	; done if no colon
+	inc	ix		; otherwise, skip the colon
+;
+getdev3:
+	call	nonblank	; gobble any remaining whitespace
+	xor	a		; indicate success
+	ret			; and return
+;
+; Process device
+;
+process:
+	; match and branch according to device mnemonic
+	ld	hl,tmpstr	; point to start of extracted string
+	ld	de,strcom	; point to "COM" string
+	call	strcmp		; and compare
+	jp	z,comset	; handle COM port configuration
+	jp	errdev		; abort if bad device name
+;
+; Display or change serial port configuration
+;
+comset:
+	; check for valid unit number
+	ld	hl,comcnt	; point to com device unit count
+	ld	a,(unit)	; get com device unit count
+	cp	(hl)		; compare to count (still in E)
+	jr	c,comset1	; unit < count, continue
+	jp	errunt		; handle unit number error
+;
+comset1:
+	call	ldcom		; load config for port
+;
+	ld	a,(comatr)	; get attributes
+	bit	7,a		; terminal?
+	jp	nz,prtcom	; terminal not configurable
+;
+	ld	a,(ix)		; get current char
+	cp	0		; nothing more?
+	jp	z,prtcom	; no config parms, print current device config
+;
+	; parse and update baudrate
+	ld	a,(ix)		; get current byte
+	cp	'0'		; check for
+	jr	c,comset1a	; ... valid digit
+	cp	'9'+1		; ... else jump ahead
+	jr	nc,comset1a	; ... to handle empty
+;
+	call	getnum32	; get baud rate into DE:HL
+	jp	c,errcfg	; Handle overflow error
+	ld	c,75		; Constant for baud rate encode
+	call	encode		; encode into C:4-0
+	jp	nz,errcfg	; Error if encode fails
+	ld	a,(comcfg+1)	; Get high byte of config
+	and	%11100000	; strip out old baud rate bits
+	or	c		; insert new baud rate bits
+	ld	(comcfg+1),a	; save it
+;
+comset1a:
+	; parse and update parity
+	call	nonblank	; skip blanks
+	jp	z,comset9	; end of parms
+	cp	','		; comma, as expected?
+	jp	nz,comset8	; check for trailing options
+	inc	ix		; skip comma
+	call	nonblank	; skip possible blanks
+	call	ucase
+	; lookup parity value
+	ld	c,0
+	cp	'N'
+	jr	z,comset2
+	ld	c,1
+	cp	'O'
+	jr	z,comset2
+	ld	c,3
+	cp	'E'
+	jr	z,comset2
+	ld	c,5
+	cp	'M'
+	jr	z,comset2
+	ld	c,7
+	cp	'S'
+	jr	z,comset2
+	jr	comset3		; unexpected parity char, possibly empty
+;
+comset2:
+	; update parity value
+	ld	a,c		; new parity value to A
+	rlca			; rotate to bits 5-3
+	rlca			;
+	rlca			;
+	ld	c,a		; and back to C
+	ld	a,(comcfg)	; parity is in comcfg:5-3
+	and	%11000111	; strip old value
+	or	c		; apply new value
+	ld	(comcfg),a	; and save it
+	inc	ix		; bump past parity char
+;
+comset3:
+	; parse & update data bits
+	call	nonblank	; skip blanks
+	jr	z,comset9	; end of parms
+	cp	','		; comma, as expected?
+	jr	nz,comset8	; check for trailing options
+	inc	ix		; skip comma
+	call	nonblank	; skip possible blanks
+	sub	'5'		; normalize value
+	cp	4		; value should now be 0-3
+	jr	nc,comset4	; unexpected, possibly empty
+	ld	c,a		; move new value to C
+	ld	a,(comcfg)	; data bits is in comcfg:1-0
+	and	%11111100	; strip old value
+	or	c		; apply new value
+	ld	(comcfg),a	; and save it
+	inc	ix		; bump past data bits char
+;
+comset4:
+	; parse & update stop bits
+	call	nonblank	; skip blanks
+	jr	z,comset9	; end of parms
+	cp	','		; comma, as expected?
+	jr	nz,comset8	; check for trailing options
+	inc	ix		; skip comma
+	call	nonblank	; skip possible blanks
+	sub	'1'		; normalize value
+	cp	2		; value should now be 0-1
+	jr	nc,comset8	; unexpected, possibly empty
+	rlca			; rotate to bit 2
+	rlca
+	ld	c,a		; move new value to C
+	ld	a,(comcfg)	; stop bit is in comcfg:2
+	and	%11111011	; strip old value
+	or	c		; apply new value
+	ld	(comcfg),a	; and save it
+	inc	ix		; bump past stop bits char
+;
+comset8:
+	; trailing options
+	call	nonblank	; skip blanks
+	jr	z,comset9	; end of parms
+	cp	'/'		; option introducer?
+	jp	nz,errprm	; parameter error
+	inc	ix		; bump part '/'
+	ld	a,(ix)		; get character
+	call	ucase		; make upper case
+	cp	'P'		; only valid option
+	jp	nz,errprm	; parameter error
+	ld	a,$FF		; set prompt value on
+	ld	(pflag),a	; save it
+	inc	ix		; bump past character
+	jr	comset8		; process more parms
+;
+comset9:
+	; display new config
+	ld	de,(comcfg)	; get new config
+	call	prtcom		; print it
+	ld	a,(pflag)	; get prompt flag
+	or	a		; set flags
+	jr	z,comset9b	; bypass if not requested
+	call	crlf2		; spacing
+	ld	de,indent	; indent
+	call	prtstr		; do it
+	ld	de,msgpmt	; point to prmopt message
+	call	prtstr		; print it
+;
+	ld	b,64
+comset9a:
+	xor	a
+	call	prtchr
+	djnz	comset9a
+;
+comset9b:
+	; check for UNA
+	ld	a,(unamod)	; get UNA flag
+	or	a		; set flags
+	jr	nz,comsetu	; go to UNA variant
+;
+	; implement new config
+	ld	de,(comcfg)	; get new config value to DE
+	ld	b,bf_cioinit	; BIOS serial init
+	ld	a,(unit)	; get serial device unit
+	ld	c,a		; ... into C
+	rst	08		; call HBIOS
+	jp	nz,errcfg	; handle error
+	jr	comsetx		; common exit
+;
+comsetu:
+	; implement new config under UNA
+	ld	de,(comcfg)	; get new config value to DE
+	ld	c,$10		; UNA INIT function
+	ld	a,(unit)	; get serial device unit
+	ld	b,a		; ... into B
+	rst	08		; call HBIOS
+	jp	nz,errcfg	; handle error
+	jr	comsetx		; common exit
+;
+comsetx:
+	ld	a,(pflag)	; get prompt flag
+	or	a		; set flags
+	jr	z,comsetx2	; bypass if not requested
+comsetx1:
+	ld	c,$01		; console read
+	call	bdos		; do it
+	cp	$0D		; CR?
+	jr	nz,comsetx1	; loop as needed
+;
+comsetx2:
+	xor	a
+	ret
+;
+; Print configuration of all serial ports
+;
+prtcomall:
+	ld	a,(comcnt)	; get com device unit count
+	ld	b,a		; init B as loop counter
+	ld	c,0		; init C as unit index
+;
+prtcomall1:
+	push	bc		; save loop control
+;
+	; get port info
+	ld	a,c		; put unit number
+	ld	(unit),a	; ... into unit
+	call	ldcom		; get config
+	jr	z,prtcomall2	; no error, continue
+	pop	bc		; unwind stack
+	ret			; and return with NZ
+;
+prtcomall2:
+	; print config for port
+	call	prtcom		; print line for this port
+;
+	; loop as needed
+	pop	bc		; restore loop control
+	inc	c		; next unit index
+	djnz	prtcomall1	; loop till done
+;
+	or	$FF		; indicate nothing more to do
+	ret			; finished
+;
+; Print configuration of serial port
+;
+prtcom:
+	; print leader (e.g., "COM0: ")
+	call	crlf
+	ld	de,indent
+	call	prtstr
+	ld	de,strcom
+	call	prtstr
+	ld	a,(unit)
+	call	prtdecb
+	ld	a,':'
+	call	prtchr
+	ld	a,' '
+	call	prtchr
+;
+	ld	a,(comatr)	; get attribute byte
+	bit	7,a		; 0=RS232, 1=terminal
+	jr	z,prtcom1	; handle serial port configuration
+;
+	; this is a terminal, just say so
+	ld	de,strterm	; point to string
+	call	prtstr		; print it
+	ret			; and return
+;
+prtcom1:
+	ld	de,(comcfg)	; load config to DE
+;
+	; print baud rate
+	push	de		; save it
+	ld	a,d		; baud rate is in D
+	and	$1F		; ... bits 4-0
+	ld	l,a		; move to L
+	ld	h,0		; setup H for decode routine
+	ld	de,75		; set DE to baud rate decode constant
+	call	decode		; decode baud rate, DE:HL := baud rate
+	ld	bc,bcdtmp	; point to temp bcd buffer
+	call	bin2bcd		; convert baud to BCD
+	call	prtbcd		; and print in decimal
+	pop	de		; restore line characteristics
+;
+	; print parity
+	ld	a,','		; A := comma
+	call	prtchr		; ... print it
+	ld	a,e		; E has parity config
+	rrca			; isolate bits 5-3
+	rrca			; ...
+	rrca			; ...
+	and	$07		; ...
+	ld	hl,parmap	; HL := start of parity char table
+	call	addhl		; index into table
+	ld	a,(hl)		; get resulting parity char
+	call	prtchr		; and print
+;
+	; print data bits
+	ld	a,','		; A := comma
+	call	prtchr		; ... print it
+	ld	a,e		; E has data bits config
+	and	$03		; isloate bits 1-0
+	add	A,'5'		; convert to printable char
+	call	prtchr		; and print it
+;
+	; print stop bits
+	ld	a,','		; A := comma
+	call	prtchr		; ... print it
+	ld	a,e		; E has stop bits config
+	rrca			; isolate bit 2
+	rrca			; ...
+	and	$01		; ...
+	add	A,'1'		; convert to printable char
+	call	prtchr		; and print it
+;
+	ret
+;
+; Load serial device info for specific unit
+;
+ldcom:
+	ld	a,(unamod)	; get UNA flag
+	or	a		; set flags
+	jr	nz,ldcomu	; go to UNA variant
+;
+	; get device type info
+	ld	a,(unit)	; get unit
+	ld	b,bf_ciodevice	; BIOS device call
+	ld	c,a		; ... and put in C
+	rst	08		; call HBIOS, C := attributes
+	ret	nz		; return on error
+	ld	a,c		; attributes to A
+	ld	(comatr),a	; save it
+;
+	; get serial port config
+	ld	b,bf_cioquery	; BIOS serial device query
+	ld	a,(unit)	; get device unit num
+	ld	c,a		; ... and put in C
+	rst	08		; call H/UBIOS, DE := line characteristics
+	ret	nz		; abort on error
+	ld	(comcfg),de	; save config
+;
+	xor	a		; success
+	ret
+;
+ldcomu:	; UNA variant
+	xor	a		; assume attribtues zero
+	ld	(comatr),a	; save it
+	; get device info
+	ld	a,(unit)	; get unit
+	ld	b,a		; put unit in B
+	ld	c,$18		; UNA Get line/driver info func
+	rst	08		; call H/UBIOS, DE := line characteristics
+	ld	a,c		
+	or	a
+	jr	z,ldcomu1
+	cp	$43		; $43 is OK for now (tell John about this)
+	jr	z,ldcomu1
+	ret			; return w/ NZ indicating error
+;
+ldcomu1:
+	ld	(comcfg),de	; save config
+;
+	xor	a		; success
+	ret
+	
+;
+; Handle special options
+;
+option:
+;
+	inc	ix		; next char
+	ld	a,(ix)		; get it
+	cp	'?'		; is it a '?' as expected?
+	jp	z,usage		; yes, display usage
+;	cp	'L'		; is it a 'L', display device list?
+;	jp	z,devlist	; yes, display device list
+	jp	errprm		; anything else is an error
+;
+; Display usage
+;
+usage:
+;
+	call	crlf		; formatting
+	ld	de,msgban1	; point to version message part 1
+	call	prtstr		; print it
+	ld	a,(unamod)	; get UNA flag
+	or	a		; set flags
+	ld	de,msghb	; point to HBIOS mode message
+	call	z,prtstr	; if not UNA, say so
+	ld	de,msgub	; point to UBIOS mode message
+	call	nz,prtstr	; if UNA, say so
+	call	crlf		; formatting
+	ld	de,msgban2	; point to version message part 2
+	call	prtstr		; print it
+	call	crlf2		; blank line
+	ld	de,msguse	; point to usage message
+	call	prtstr		; print it
+	or	$FF		; signal no action performed
+	ret			; and return
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	ret
+;
+prtdot:
+;
+	; shortcut to print a dot preserving all regs
+	push	af		; save af
+	ld	a,'.'		; load dot char
+	call	prtchr		; print it
+	pop	af		; restore af
+	ret			; done
+;
+; Print a zero terminated string at (DE) without destroying any registers
+;
+prtstr:
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	ret	
+;
+; Print the value in A in hex without destroying any registers
+;
+prthex:
+	push	af		; save AF
+	push	de		; save DE
+	call	hexascii	; convert value in A to hex chars in DE
+	ld	a,d		; get the high order hex char
+	call	prtchr		; print it
+	ld	a,e		; get the low order hex char
+	call	prtchr		; print it
+	pop	de		; restore DE
+	pop	af		; restore AF
+	ret			; done
+;
+; print the hex word value in bc
+;
+prthexword:
+	push	af
+	ld	a,b
+	call	prthex
+	ld	a,c
+	call	prthex 
+	pop	af
+	ret
+;
+; print the hex dword value in de:hl
+;
+prthex32:
+	push	bc
+	push	de
+	pop	bc
+	call	prthexword
+	push	hl
+	pop	bc
+	call	prthexword
+	pop	bc
+	ret
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+hexascii:
+	ld	d,a		; save A in D
+	call	hexconv		; convert low nibble of A to hex
+	ld	e,a		; save it in E
+	ld	a,d		; get original value back
+	rlca			; rotate high order nibble to low bits
+	rlca
+	rlca
+	rlca
+	call	hexconv		; convert nibble
+	ld	d,a		; save it in D
+	ret			; done
+;
+; Convert low nibble of A to ascii hex
+;
+hexconv:
+	and	$0F	     	; low nibble only
+	add	a,$90
+	daa	
+	adc	a,$40
+	daa	
+	ret
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+prtdecb:
+	push	hl
+	ld	h,0
+	ld	l,a
+	call	prtdecw		; print it
+	pop	hl
+	ret
+;
+prtdecw:
+	push	af
+	push	bc
+	push	de
+	push	hl
+	call	prtdec0
+	pop	hl
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+prtdec0:
+	ld	e,'0'
+	ld	bc,-10000
+	call	prtdec1
+	ld	bc,-1000
+	call	prtdec1
+	ld	bc,-100
+	call	prtdec1
+	ld	c,-10
+	call	prtdec1
+	ld	e,0
+	ld	c,-1
+prtdec1:
+	ld	a,'0' - 1
+prtdec2:
+	inc	a
+	add	hl,bc
+	jr	c,prtdec2
+	sbc	hl,bc
+	cp	e
+	ret	z
+	ld	e,0
+	call	prtchr
+	ret
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Get the next non-blank character from (HL).
+;
+nonblank:
+	ld	a,(ix)		; load next character
+	or	a		; string ends with a null
+	ret	z		; if null, return pointing to null
+	cp	' '		; check for blank
+	ret	nz		; return if not blank
+	inc	ix		; if blank, increment character pointer
+	jr	nonblank	; and loop
+;
+; Get alpha chars and save in tmpstr
+; Length of string returned in A
+;
+getalpha:
+;
+	ld	hl,tmpstr	; location to save chars
+	ld	b,8		; length counter (tmpstr max chars)
+	ld	c,0		; init character counter
+;
+getalpha1:
+	ld	a,(ix)		; get active char
+	call	ucase		; lower case -> uppper case, if needed
+	cp	'A'		; check for start of alpha range
+	jr	c,getalpha2	; not alpha, get out
+	cp	'Z' + 1		; check for end of alpha range
+	jr	nc,getalpha2	; not alpha, get out
+	; handle alpha char
+	ld	(hl),a		; save it
+	inc	c		; bump char count
+	inc	hl		; inc string pointer
+	inc	ix		; increment buffer ptr
+	djnz	getalpha1	; if space, loop for more chars
+;
+getalpha2:	; non-alpha, clean up and return
+	ld	(hl),0		; terminate string
+	ld	a,c		; string length to A
+	or	a		; set flags
+	ret			; and return
+;
+; Get numeric chars and convert to number returned in A
+; Carry flag set on overflow
+;
+getnum:
+	ld	c,0		; C is working register
+getnum1:
+	ld	a,(ix)		; get the active char
+	cp	'0'		; compare to ascii '0'
+	jr	c,getnum2	; abort if below
+	cp	'9' + 1		; compare to ascii '9'
+	jr	nc,getnum2	; abort if above
+;
+	; valid digit, add new digit to C
+	ld	a,c		; get working value to A
+	rlca			; multiply by 10
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	add	a,c		; ...
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+	ld	a,(ix)		; get new digit
+	sub	'0'		; make binary
+	add	a,c		; add in working value
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+;
+	inc	ix		; bump to next char
+	jr	getnum1		; loop
+;
+getnum2:	; return result
+	ld	a,c		; return result in A
+	or	a		; with flags set, CF is cleared
+	ret
+;
+; Get numeric chars and convert to 32-bit number returned in DE:HL
+; Carry flag set on overflow
+;
+getnum32:
+	ld	de,0		; Initialize DE:HL
+	ld	hl,0		; ... to zero
+getnum32a:
+	ld	a,(ix)		; get the active char
+	cp	'0'		; compare to ascii '0'
+	jr	c,getnum32c	; abort if below
+	cp	'9' + 1		; compare to ascii '9'
+	jr	nc,getnum32c	; abort if above
+;
+	; valid digit, multiply DE:HL by 10
+	; X * 10 = (((x * 2 * 2) + x)) * 2
+	push	de
+	push	hl
+;	
+	call	getnum32e	; DE:HL *= 2
+	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
+;	
+	call	getnum32e	; DE:HL *= 2
+	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
+;
+	pop	bc		; DE:HL += X
+	add	hl,bc
+	ex	de,hl
+	pop	bc
+	adc	hl,bc
+	ex	de,hl
+	ret	c		; if overflow, ret w/ CF
+;	
+	call	getnum32e	; DE:HL *= 2
+	ret	c		; if overflow, ret w/ CF
+;
+	; now add in new digit
+	ld	a,(ix)		; get the active char
+	sub	'0'		; make it binary
+	add	a,l		; add to L, CF updated
+	ld	l,a		; back to L
+	jr	nc,getnum32b	; if no carry, done
+	inc	h		; otherwise, bump H
+	jr	nz,getnum32b	; if no overflow, done
+	inc	e		; otherwise, bump E
+	jr	nz,getnum32b	; if no overflow, done
+	inc	d		; otherwise, bump D
+	jr	nz,getnum32b	; if no overflow, done
+	scf			; set carry flag to indicate overflow
+	ret			; and return
+;
+getnum32b:
+	inc	ix		; bump to next char
+	jr	getnum32a	; loop
+;
+getnum32c:
+	; successful completion
+	xor	a		; clear flags
+	ret			; and return
+;
+getnum32d:
+	; special overflow exit with stack fixup
+	pop	hl		; burn 2
+	pop	hl		; ... stack entries
+	ret			; and return
+;
+getnum32e:
+	; DE:HL := DE:HL * 2
+	sla	l
+	rl	h
+	rl	e
+	rl	d
+	ret
+;
+; Compare null terminated strings at HL & DE
+; If equal return with Z set, else NZ
+;
+strcmp:
+	ld	a,(de)		; get current source char
+	cp	(hl)		; compare to current dest char
+	ret	nz		; compare failed, return with NZ
+	or	a		; set flags
+	ret	z		; end of string, match, return with Z set
+	inc	de		; point to next char in source
+	inc	hl		; point to next char in dest
+	jr	strcmp		; loop till done
+;
+; Convert character in A to uppercase
+;
+ucase:
+	cp	'a'		; if below 'a'
+	ret	c		; ... do nothing and return
+	cp	'z' + 1		; if above 'z'
+	ret	nc		; ... do nothing and return
+	res	5,a		; clear bit 5 to make lower case -> upper case
+	ret			; and return
+;
+; Add the value in A to HL (HL := HL + A)
+;
+addhl:
+	add	a,l		; A := A + L
+	ld	l,a		; Put result back in L
+	ret	nc		; if no carry, we are done
+	inc	h		; if carry, increment H
+	ret			; and return
+;
+; Integer divide DE:HL by C
+; result in DE:HL, remainder in A
+; clobbers F, B
+;
+div32x8:
+	xor	a
+	ld	b,32
+div32x8a:
+  	add	hl,hl
+	rl	e
+	rl	d
+	rla
+	cp	c
+	jr	c,div32x8b
+	sub	c
+	inc	l
+div32x8b:
+  	djnz	div32x8a
+	ret
+;
+; Jump indirect to address in HL
+;
+jphl:
+	jp	(hl)
+;
+; Errors
+;
+erruse:	; command usage error (syntax)
+	ld	de,msguse
+	jr	err
+;
+errprm:	; command parameter error (syntax)
+	ld	de,msgprm
+	jr	err
+;
+errinv:	; invalid HBIOS, signature not found
+	ld	de,msginv
+	jr	err
+;
+errver:	; unsupported HBIOS version
+	ld	de,msgver
+	jr	err
+;
+errdev:	; invalid device name
+	ld	de,msgdev
+	jr	err
+;
+errnum:	; invalid number parsed, overflow
+	ld	de,msgnum
+	jr	err
+;
+errunt:	; Invalid device unit specified
+	ld	de,msgunt
+	jr	err
+;
+errcfg:	; Invalid device configuration specified
+	ld	de,msgcfg
+	jr	err
+;
+err:	; print error string and return error signal
+	call	crlf2		; print newline
+;
+err1:	; without the leading crlf
+	call	prtstr		; print error string
+;
+err2:	; without the string
+;	call	crlf		; print newline
+	or	$FF		; signal error
+	ret			; done
+;
+;===============================================================================
+; Utility modules
+;===============================================================================
+;
+#include "encode.asm"
+#include "decode.asm"
+#include "bcd.asm"
+;
+;===============================================================================
+; Storage Section
+;===============================================================================
+;
+;
+bioloc	.dw	0		; CBIOS starting address
+unit	.db	0		; source unit
+;
+unamod	.db	0		; $FF indicates UNA UBIOS active
+;
+tmpstr	.fill	9,0		; temporary string of up to 8 chars, zero term
+bcdtmp	.fill	5,0		; temporary bcd number storage
+;
+comcnt	.db	0		; count of com ports
+comatr	.db	0		; com port attributes
+comcfg	.dw	0		; com port configuration
+;
+parmap	.db	"NONENMNS"	; parity character lookup table
+;
+pflag	.db	0		; $FF indicates prompt option set
+;
+strcom	.db	"COM",0		; serial device name string
+strterm	.db	"VDU",0		; terminal device string
+;
+stksav	.dw	0		; stack pointer saved at start
+	.fill	stksiz,0	; stack
+stack	.equ	$		; stack top
+;
+; Messages
+;
+indent	.db	"   ",0
+msgban1	.db	"MODE v1.2, 24-Jul-2018",0
+msghb	.db	" [HBIOS]",0
+msgub	.db	" [UBIOS]",0
+msgban2	.db	"Copyright (C) 2017, Wayne Warthen, GNU GPL v3",0
+msguse	.db	"Usage: MODE COM<n>: [<baud>[,<parity>[,<databits>[,<stopbits>]]]] [/P]",13,10
+	.db	"  ex. MODE /?                (display version and usage)",13,10
+	.db	"      MODE                   (display config of all serial ports)",13,10
+	.db	"      MODE COM0:             (display serial unit 0 config)",13,10
+	.db	"      MODE COM1: 9600,N,8,1  (set serial unit 1 config)",0
+msgprm	.db	"Parameter error (MODE /? for usage)",0
+msginv	.db	"Invalid BIOS (signature missing)",0
+msgver	.db	"Unexpected HBIOS version",0
+msgdev	.db	"Invalid device name",0
+msgnum	.db	"Unit or slice number invalid",0
+msgunt	.db	"Invalid device unit number specified",0
+msgcfg	.db	"Invalid device configuration specified",0
+msgpmt	.db	"Prepare line then press <return>",0
+;
+	.end
diff --git a/Source/Apps/reboot/Build.cmd b/Source/Apps/reboot/Build.cmd
new file mode 100644
index 00000000..ec727ea5
--- /dev/null
+++ b/Source/Apps/reboot/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF reboot.asm reboot.com reboot.lst || exit /b
+
+copy /Y reboot.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/reboot/Clean.cmd b/Source/Apps/reboot/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/reboot/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/reboot/Makefile b/Source/Apps/reboot/Makefile
new file mode 100644
index 00000000..b3b30efc
--- /dev/null
+++ b/Source/Apps/reboot/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = reboot.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/reboot/reboot.asm b/Source/Apps/reboot/reboot.asm
new file mode 100644
index 00000000..e8dd8e79
--- /dev/null
+++ b/Source/Apps/reboot/reboot.asm
@@ -0,0 +1,299 @@
+;==============================================================================
+; REBOOT - Allows the user to Cold or Warm Boot the RomWBW System
+; Version 1.0 12-October-2024
+;==============================================================================
+;
+; Author: MartinR (October 2024)
+;    Based **very heavily** on code by Wayne Warthen (wwarthen@gmail.com)
+;______________________________________________________________________________
+;
+; Usage:
+;   REBOOT [/C] [/W] [/?]
+;     ex: REBOOT	Display version and usage
+;         REBOOT /?	Display version and usage
+;         REBOOT /C	Cold boot RomWBW system
+;	  REBOOT /W	Warm boot RomWBW system
+;
+; Operation:
+;   Cold or warm boots a RomWBW system depending on the user option selected.
+;
+; This code will only execute on a Z80 CPU (or derivitive)
+;
+; This source code assembles with TASM V3.2 under Windows-11 using the
+; following command line:
+;	tasm -80 -g3 -l REBOOT.ASM REBOOT.COM
+;	ie: Z80 CPU; output format 'binary' named .COM (rather than .OBJ)
+;	and includes a symbol table as part of the listing file.
+;______________________________________________________________________________
+;
+; Change Log:
+;   2024-09-11 [WBW] Release of RomWBW CPU Speed Selector v1.0 used as the basis
+;   2024-10-12 [MR ] Initial release of version 1.0
+;______________________________________________________________________________
+;
+; Include Files
+;
+#include "../../ver.inc"		; Used for building RomWBW
+#include "../../HBIOS/hbios.inc"
+
+;#include "ver.inc"			; Used for testing purposes....
+;#include "hbios.inc"			; ....during code development
+;
+;===============================================================================
+;
+; General operational equates (should not requre adjustment)
+;
+stksiz		.equ	$40		; Working stack size
+;
+restart		.equ	$0000		; CP/M restart vector
+bdos		.equ	$0005		; BDOS invocation vector
+;
+bf_sysreset	.equ	$F0		; restart system
+bf_sysres_int	.equ	$00		; reset hbios internal
+bf_sysres_warm	.equ	$01		; warm start (restart boot loader)
+bf_sysres_cold	.equ	$02		; cold start
+;
+ident		.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
+;
+;===============================================================================
+;
+	.org	$0100			; standard CP/M TPA executable
+;
+	; setup stack (save old value)
+	ld	(stksav),sp		; save stack
+	ld	sp,stack		; set new stack
+;
+	call	crlf
+	ld	de,str_banner		; banner
+	call	prtstr
+;
+	; initialization
+	call	init			; initialize
+	jr	nz,exit			; abort if init fails
+;
+	call	main			; do the real work
+;
+exit:
+	; clean up and return to command processor
+	call	crlf			; formatting
+	ld	sp,(stksav)		; restore stack
+	jp	restart			; return to CP/M via restart
+;
+;
+;===============================================================================
+; Main Program
+;===============================================================================
+;
+; Initialization
+;
+init:
+	; check for UNA (UBIOS)
+	ld	a,($FFFD)	; fixed location of UNA API vector
+	cp	$C3		; jp instruction?
+	jr	nz,initwbw	; if not, not UNA
+	ld	hl,($FFFE)	; get jp address
+	ld	a,(hl)		; get byte at target address
+	cp	$FD		; first byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+	inc	hl		; point to next byte
+	ld	a,(hl)		; get next byte
+	cp	$E5		; second byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+	jp	err_una		; UNA not supported
+;
+initwbw:
+	; get location of config data and verify integrity
+	ld	hl,(ident)	; HL := adr or RomWBW HBIOS ident
+	ld	a,(hl)		; get first byte of RomWBW marker
+	cp	'W'		; match?
+	jp	nz,err_inv	; abort with invalid config block
+	inc	hl		; next byte (marker byte 2)
+	ld	a,(hl)		; load it
+	cp	~'W'		; match?
+	jp	nz,err_inv	; abort with invalid config block
+	inc	hl		; next byte (major/minor version)
+	ld	a,(hl)		; load it
+	cp	rmj << 4 | rmn	; match?
+	jp	nz,err_ver	; abort with invalid os version
+;
+initz:
+	; initialization complete
+	xor	a		; signal success
+	ret			; return
+;
+;
+;
+main:
+	; skip to start of first command line parameter
+	ld	ix,$0081	; point to start of parm area (past length byte)
+	call	nonblank	; skip to next non-blank char
+	cp	'/'		; option prefix?
+	jr	nz,usage	; display help info & exit if nothing to do
+;
+	; process any options
+	inc	ix		; fetch next character and process
+	ld	a,(ix)
+	call	upcase		; ensure it's an upper case character
+	cp	'C'		; if it's a 'C' then
+	jr	z,cboot		; do a cold boot.
+	cp	'W'		; if it's a 'W' then
+	jr	z,wboot		; do a warm boot.
+	cp	'?'		; if it's a '?' then
+	jr	z,usage		; display usage info and exit.
+	jr	err_parm	; or not a recognised option, so report and exit.
+;
+; Handle Usage Information
+;
+usage:
+	call	crlf2		; display the options for this utility
+	ld	de,str_usage
+	call	prtstr
+	or	$FF
+	ret			; exit back out to CP/M CCP
+;
+; Handle Warm Boot
+;
+wboot:
+	ld	de,str_warmboot		; message
+	call	prtstr			; display it
+	ld	b,bf_sysreset		; system restart
+	ld	c,bf_sysres_warm	; warm start
+	call	$fff0			; call hbios
+;
+; Handle Cold Boot
+;
+cboot:
+	ld	de,str_coldboot		; message
+	call	prtstr			; display it
+	ld	b,bf_sysreset		; system restart
+	ld	c,bf_sysres_cold	; cold start
+	call	$fff0			; call hbios
+;
+;===============================================================================
+; Error Handlers
+;===============================================================================
+;
+err_una:
+	ld	de,str_err_una
+	jr	err_ret
+err_inv:
+	ld	de,str_err_inv
+	jr	err_ret
+err_ver:
+	ld	de,str_err_ver
+	jr	err_ret
+err_parm:
+	ld	de,str_err_parm
+	jr	err_ret
+
+;
+err_ret:
+	call	crlf2
+	call	prtstr
+	or	$FF			; signal error
+	ret
+;
+;===============================================================================
+; Utility Routines
+;===============================================================================
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	af
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Print a zero terminated string at (de) without destroying any registers
+;
+prtstr:
+	push	af
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	pop	af
+	ret
+;
+; Get the next non-blank character from (ix)
+;
+nonblank:
+	ld	a,(ix)		; load next character
+	or	a		; string ends with a null
+	ret	z		; if null, return pointing to null
+	cp	' '		; check for blank
+	ret	nz		; return if not blank
+	inc	ix		; if blank, increment character pointer
+	jr	nonblank	; and loop
+;
+; Convert character in A to uppercase
+;
+upcase:
+	cp	'a'		; if below 'a'
+	ret	c		; ... do nothing and return
+	cp	'z' + 1		; if above 'z'
+	ret	nc		; ... do nothing and return
+	res	5,a		; clear bit 5 to make lower case -> upper case
+	ret			; and return
+;
+;===============================================================================
+; Constants
+;===============================================================================
+;
+str_banner	.db	"RomWBW Reboot Utility, Version 1.0, 12-Oct-2024\r\n"
+		.db	"   Wayne Warthen (wwarthen@gmail.com) & MartinR",0
+;
+str_warmboot	.db	"\r\n\r\nWarm booting...\r\n",0
+str_coldboot	.db	"\r\n\r\nCold booting...\r\n",0
+;
+str_err_una	.db	"  ERROR: UNA not supported by application",0
+str_err_inv	.db	"  ERROR: Invalid BIOS (signature missing)",0
+str_err_ver	.db	"  ERROR: Unexpected HBIOS version",0
+str_err_parm	.db	"  ERROR: Parameter error (REBOOT /? for usage)",0
+;
+str_usage	.db	"  Usage: REBOOT /? - Display this help info.\r\n"
+		.db	"         REBOOT /W - Warm boot system\r\n"
+		.db	"         REBOOT /C - Cold boot system\r\n"
+		.db	"         Options are case insensitive.\r\n",0
+;
+;===============================================================================
+; Working data
+;===============================================================================
+;
+stksav		.dw	0		; stack pointer saved at start
+		.fill	stksiz,0	; stack
+stack		.equ	$		; stack top
+;
+;===============================================================================
+;
+	.end
\ No newline at end of file
diff --git a/Source/Apps/rtc.asm b/Source/Apps/rtc.asm
deleted file mode 100644
index c49157f5..00000000
--- a/Source/Apps/rtc.asm
+++ /dev/null
@@ -1,1798 +0,0 @@
-	.Title	"RTC"
-;
-; Program:	rtc.asm
-; Author:	Andrew Lynch
-; Date:		22 Feb 2007
-; Enviroment:	TASM MS-DOS Z80 Cross Assembler source for CP/M
-;
-;[2011/8/11] VK5DG modified for N8
-; Changed base address to $88
-; Changed trickle charger value to 2k+2 diodes for DS1210s
-;
-;[2012/2/7] WBW modified to build for either
-;           traditional N8VEM/Zeta or N8 via conditionals
-;
-;[2013/12/29] WBW modified to build for MK4
-;
-;[2017/11/29] WBW modified to adjust to RTC in use dynamically
-;             using HBIOS platform detection
-;
-;[2018/11/8] v1.2 PMS Add boot option. Code optimization.
-;
-;[2019/06/21] v1.3 Finalized RCBus Z180 support.
-;
-;[2019/08/11] v1.4 Support SCZ180 platform.
-;
-;[2020/02/02] v1.5 PMS Basic command line support
-;
-;[2020/05/15] v1.6 Added Warm Start option
-;
-;[2021/07/10] v1.7 Support MBC (AJL)
-;
-;[2022/03/27] v1.8 Support RHYOPHYRE
-;
-;[2023/07/07] v1.9 Support DUODYNE
-;
-; Constants
-;
-mask_data	.EQU	%10000000	; RTC data line
-mask_clk	.EQU	%01000000	; RTC Serial Clock line
-mask_rd		.EQU	%00100000	; Enable data read from RTC
-mask_rst	.EQU	%00010000	; De-activate RTC reset line
-
-PORT_SBC	.EQU	$70		; RTC port for SBC/ZETA
-PORT_N8		.EQU	$88		; RTC port for N8
-PORT_MK4	.EQU	$8A		; RTC port for MK4
-PORT_RCZ80	.EQU	$C0		; RTC port for RCBus
-PORT_RCZ180	.EQU	$0C		; RTC port for RCBus
-PORT_EZZ80	.EQU	$C0		; RTC port for EZZ80 (actually does not have one!!!)
-PORT_SCZ180	.EQU	$0C		; RTC port for SCZ180
-PORT_DYNO	.EQU	$0C		; RTC port for DYNO
-PORT_RCZ280	.EQU	$C0		; RTC port for RCZ280
-PORT_MBC	.EQU	$70		; RTC port for MBC
-PORT_RPH	.EQU	$84		; RTC port for RHYOPHYRE
-PORT_DUO	.EQU	$94		; RTC port for DUODYNE
-
-
-BDOS		.EQU	5		; BDOS invocation vector
-FCB		.EQU	05CH		; Start of command line
-
-;BID_BOOT	.EQU	$00
-;HB_BNKCALL	.EQU	$FFF9
-
-BF_SYSRESET	.EQU	$F0		; RESTART SYSTEM
-
-BF_SYSRES_INT	.EQU	$00		; RESET HBIOS INTERNAL
-BF_SYSRES_WARM	.EQU	$01		; WARM START (RESTART BOOT LOADER)
-BF_SYSRES_COLD	.EQU	$02		; COLD START
-
-;
-; Program
-;
-	.ORG	0100H
-
-LOOP:
-	LD	DE,MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-;	program starts here
-
-	CALL	RTC_INIT		; Program initialization
-
-	CALL	RTC_TOP_LOOP
-
-	LD	C,00H			; CP/M system reset call - shut down
-	CALL	0005H
-		
-	HALT				; This code is never reached
-
-
-; function HEXSTR
-; input number in A
-; output upper nibble of number in ASCII in H
-; output lower nibble of number in ASCII in L
-; uses BC
-;
-; based on following algorithm:
-;
-;  const
-;    hextab : string = ('0','1','2','3','4','5','6','7','8',
-;                       '9','A','B','C','D','E','F');
-;
-;  PROCEDURE hexstr(n: int): ^string;
-;  BEGIN
-;    n := n and 255;
-;    tmpstr[1] := hextab[n / 16];
-;    tmpstr[2] := hextab[n and 15];
-;    tmpstr[0] := #2;
-;    return @tmpstr;
-;  END;
-
-
-HEXSTR:
-	PUSH	BC			;SAVE BC
-	LD	B,A
-	RLC	A			;DO HIGH NIBBLE FIRST  
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	0FH			;ONLY THIS NOW
-	ADD	A,30H			;TRY A NUMBER
-	CP	3AH			;TEST IT
-	JR	C,HEXSTR1		;IF CY SET SAVE 'NUMBER' in H
-	ADD	A,07H			;MAKE IT AN ALPHA
-HEXSTR1:
-	LD	H,A			;SAVE 'ALPHA' in H
-	LD	A,B			;NEXT NIBBLE
-	AND	0FH			;JUST THIS
-	ADD	A,30H			;TRY A NUMBER
-	CP	3AH			;TEST IT
-	JR	C,HEXSTR2		;IF CY SET SAVE 'NUMBER' in L
-	ADD	A,07H			;MAKE IT ALPHA
-
-HEXSTR2:
-	LD	L,A			;SAVE 'ALPHA' in L
-	POP	BC			;RESTORE BC
-	RET
-
-
-;*****************************************************
-;*	GET K.B. DATA & MAKE IT 'HEX'
-;*****************************************************
-
-HEXIN:
-	PUSH	BC		;SAVE BC REGS.
-	CALL	NIBL		;DO A NIBBLE
-	RLC	A		;MOVE FIRST BYTE UPPER NIBBLE  
-	RLC	A
-	RLC	A
-	RLC	A
-	LD	B,A		;SAVE ROTATED BYTE
-	PUSH	BC
-		
-	CALL NIBL		;DO NEXT NIBBLE
-	POP	BC
-	ADD	A,B		;COMBINE NIBBLES IN ACC.
-	POP	BC		;RESTORE BC
-	RET			;DONE  
-NIBL:
-	LD	C,01H		; CP/M console input call
-	CALL	0005H		;GET K.B. DATA
-	CP	40H		;TEST FOR ALPHA
-	JR	NC,ALPH
-	AND	0FH		;GET THE BITS
-	RET
-ALPH:
-	AND	0FH		;GET THE BITS
-	ADD	A,09H		;MAKE IT HEX A-F
-	RET
-	
-; function RTC_IN
-;
-; read a byte from RTC port, return in A
-; NOTE: port address is dynamically set in RTC_INIT
-
-RTC_IN:
-INP	.EQU	$ + 1
-	IN	A,($FF)
-	RET
-	
-; function RTC_OUT
-;
-; write a byte to RTC port, value in A
-; NOTE: port address is dynamically set in RTC_INIT
-
-RTC_OUT:
-OUTP	.EQU	$ + 1
-	OUT	($FF),A
-	RET
-
-; function RTC_BIT_DELAY
-;
-; based on following algorithm:
-;
-;  { Make a short delay }
-;  PROCEDURE rtc_bit_delay;
-;   var
-;     x : int;
-;  BEGIN
-;    x := 3;
-;  END;
-
-RTC_BIT_DELAY:				; purpose is to delay ~36 uS or 144 t-states at 4MHz
-	PUSH	AF			; 11 t-states
-	LD	A,07H			; 7 t-states ADJUST THE TIME 13h IS FOR 4 MHZ
-RTC_BIT_DELAY1:
-	DEC	A			; 4 t-states DEC COUNTER. 4 T-states = 1 uS.
-	JP	NZ,RTC_BIT_DELAY1	; 10 t-states JUMP TO PAUSELOOP2 IF A <> 0.
-
-	NOP				; 4 t-states
-	NOP				; 4 t-states
-	POP	AF			; 10 t-states
-	RET				; 10 t-states (144 t-states total)
-
-
-; function RTC_RESET
-;
-; based on following algorithm:
-;
-;  { Output a RTC reset signal }
-;  PROCEDURE rtc_reset;
-;  BEGIN
-;    out(rtc_base,mask_data + mask_rd);
-;    rtc_bit_delay();
-;    rtc_bit_delay();
-;    out(rtc_base,mask_data + mask_rd + mask_rst);
-;    rtc_bit_delay();
-;    rtc_bit_delay();
-;  END;
-;
-RTC_RESET:
-	LD	A,mask_data + mask_rd
-	;OUT	(RTC),A
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-	LD	A,mask_data + mask_rd + mask_rst
-	;OUT	(RTC),A
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-	RET
-
-
-; function RTC_RESET_ON
-;
-; based on following algorithm:
-;
-;  { Assert RTC reset signal }
-;  PROCEDURE rtc_reset_on;
-;  BEGIN
-;    out(rtc_base,mask_data + mask_rd);
-;    rtc_bit_delay();
-;    rtc_bit_delay();
-;  END;
-
-RTC_RESET_ON:
-	LD	A,mask_data + mask_rd
-	;OUT	(RTC),A
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-	RET
-
-; function RTC_RESET_OFF
-;
-; based on following algorithm:
-;
-;  { De-assert RTC reset signal }
-;  PROCEDURE rtc_reset_off;
-;  BEGIN
-;    out(rtc_base,mask_data + mask_rd + mask_rst);
-;    rtc_bit_delay();
-;    rtc_bit_delay();
-;  END;
-
-RTC_RESET_OFF:
-	LD	A,mask_data + mask_rd + mask_rst
-	;OUT	(RTC),A
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-	RET
-
-; function RTC_WR
-; input value in C
-; uses A
-;
-;  PROCEDURE rtc_wr(n : int);
-;   var
-;    i : int;
-;  BEGIN
-;    for i := 0 while i < 8 do inc(i) loop
-;       if (n and 1) <> 0 then
-;          out(rtc_base,mask_rst + mask_data);
-;          rtc_bit_delay();
-;          out(rtc_base,mask_rst + mask_clk + mask_data);
-;       else
-;          out(rtc_base,mask_rst);
-;          rtc_bit_delay();
-;          out(rtc_base,mask_rst + mask_clk);
-;       end;
-;       rtc_bit_delay();
-;       n := shr(n,1);
-;    end loop;
-;  END;
-
-RTC_WR:
-	XOR	A			; set A=0 index counter of FOR loop
-
-RTC_WR1:
-	PUSH	AF			; save accumulator as it is the index counter in FOR loop
-	LD	A,C			; get the value to be written in A from C (passed value to write in C)
-	BIT	0,A			; is LSB a 0 or 1?
-	JP	Z,RTC_WR2		; if it's a 0, handle it at RTC_WR2.
-					; LSB is a 1, handle it below
-					; setup RTC latch with RST and DATA high, SCLK low
-	LD	A,mask_rst + mask_data
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY	; let it settle a while
-					; setup RTC with RST, DATA, and SCLK high
-	LD	A,mask_rst + mask_clk + mask_data
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-	JP	RTC_WR3		; exit FOR loop 
-
-RTC_WR2:
-					; LSB is a 0, handle it below
-	LD	A,mask_rst		; setup RTC latch with RST high, SCLK and DATA low
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY	; let it settle a while
-					; setup RTC with RST and SCLK high, DATA low
-	LD	A,mask_rst + mask_clk
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-
-RTC_WR3:
-	CALL	RTC_BIT_DELAY	; let it settle a while
-	RRC	C			; move next bit into LSB position for processing to RTC
-	POP	AF			; recover accumulator as it is the index counter in FOR loop
-	INC	A			; increment A in FOR loop (A=A+1)
-	CP	$08			; is A < $08 ?
-	JP	NZ,RTC_WR1		; No, do FOR loop again
-	RET				; Yes, end function and return
-
-
-; function RTC_RD
-; output value in C
-; uses A
-;
-; function RTC_RD
-;
-;  PROCEDURE rtc_rd(): int ;
-;   var
-;     i,n,mask : int;
-;  BEGIN
-;    n := 0;
-;    mask := 1;
-;    for i := 0 while i < 8 do inc(i) loop
-;       out(rtc_base,mask_rst + mask_rd);
-;       rtc_bit_delay();
-;       if (in(rtc_base) and #1) <> #0 then
-;          { Data = 1 }
-;          n := n + mask;
-;       else
-;          { Data = 0 }
-;       end;
-;       mask := shl(mask,1);
-;       out(rtc_base,mask_rst + mask_clk + mask_rd);
-;       rtc_bit_delay();
-;    end loop;
-;    return n;
-;  END;
-
-RTC_RD:
-	XOR	A			; set A=0 index counter of FOR loop
-	LD	C,$00			; set C=0 output of RTC_RD is passed in C
-	LD	B,$01			; B is mask value
-
-RTC_RD1:
-	PUSH	AF			; save accumulator as it is the index counter in FOR loop
-					; setup RTC with RST and RD high, SCLK low
-	LD	A,mask_rst + mask_rd
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY	; let it settle a while
-	;IN	A,(RTC)		; input from RTC latch
-	CALL	RTC_IN		; input from RTC latch
-	BIT	0,A			; is LSB a 0 or 1?
-	JP	Z,RTC_RD2		; if LSB is a 1, handle it below
-	LD	A,C
-	ADD	A,B
-	LD	C,A
-;	INC	C
-					; if LSB is a 0, skip it (C=C+0)
-RTC_RD2:
-	RLC	B			; move input bit out of LSB position to save it in C
-					; setup RTC with RST, SCLK high, and RD high
-	LD	A,mask_rst + mask_clk + mask_rd
-	;OUT	(RTC),A		; output to RTC latch
-	CALL	RTC_OUT
-	CALL	RTC_BIT_DELAY	; let it settle
-	POP	AF			; recover accumulator as it is the index counter in FOR loop
-	INC	A			; increment A in FOR loop (A=A+1)
-	CP	$08			; is A < $08 ?
-	JP	NZ,RTC_RD1		; No, do FOR loop again
-	RET				; Yes, end function and return.  Read RTC value is in C
-
-; function RTC_WRITE
-; input address in D
-; input value in E
-; uses A
-;
-; based on following algorithm:		
-;
-;  PROCEDURE rtc_write(address, value: int);
-;  BEGIN
-;    lock();
-;    rtc_reset_off();
-;    { Write command }
-;    rtc_wr(128 + shl(address and $3f,1));
-;    { Write data }
-;    rtc_wr(value and $ff);
-;    rtc_reset_on();
-;    unlock();
-;  END;
-
-RTC_WRITE:
-	DI				; disable interrupts during critical section
-	CALL	RTC_RESET_OFF	; turn off RTC reset
-	LD	A,D			; bring into A the address from D
-;	AND	$3F			; keep only bits 6 LSBs, discard 2 MSBs
-	AND	%00111111		; keep only bits 6 LSBs, discard 2 MSBs
-	RLC	A			; rotate address bits to the left
-;	ADD	A,$80			; set MSB to one for DS1302 COMMAND BYTE (WRITE)
-	ADD	A,%10000000		; set MSB to one for DS1302 COMMAND BYTE (WRITE)
-	LD	C,A			; RTC_WR expects write data (address) in reg C
-	CALL	RTC_WR		; write address to DS1302
-	LD	A,E			; start processing value
-	AND	$FF			; seems unnecessary, probably delete since all values are 8-bit
-	LD	C,A			; RTC_WR expects write data (value) in reg C
-	CALL	RTC_WR		; write address to DS1302
-	CALL	RTC_RESET_ON	; turn on RTC reset
-	EI
-	RET
-
-
-; function RTC_READ
-; input address in D
-; output value in C
-; uses A
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_read(address: int): int;
-;   var
-;     n : int;
-;  BEGIN
-;    lock();
-;    rtc_reset_off();
-;    { Write command }
-;    rtc_wr(128 + shl(address and $3f,1) + 1);
-;    { Read data }
-;    n := rtc_rd();
-;    rtc_reset_on();
-;    unlock();
-;    return n;
-;  END;
-
-RTC_READ:
-	DI				; disable interrupts during critical section
-	CALL	RTC_RESET_OFF	; turn off RTC reset
-	LD	A,D			; bring into A the address from D
-	AND	$3F			; keep only bits 6 LSBs, discard 2 MSBs
-	RLC	A			; rotate address bits to the left
-	ADD	A,$81			; set MSB to one for DS1302 COMMAND BYTE (READ)
-	LD	C,A			; RTC_WR expects write data (address) in reg C
-	CALL	RTC_WR		; write address to DS1302
-	CALL	RTC_RD		; read value from DS1302 (value is in reg C)
-	CALL	RTC_RESET_ON	; turn on RTC reset
-	EI
-	RET
-
-
-; function RTC_WR_PROTECT
-; input D (address) $07
-; input E (value) $80
-; uses A
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_wr_protect;
-;  BEGIN
-;    rtc_write(7,128);
-;  END;
-
-RTC_WR_PROTECT:
-;	LD	D,$07
-	LD	D,%00000111
-;	LD	E,$80
-	LD	E,%10000000
-	CALL	RTC_WRITE
-	RET
-
-
-; function RTC_WR_UNPROTECT
-; input D (address) $07
-; input E (value) $00
-; uses A
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_wr_unprotect;
-;  BEGIN
-;    rtc_write(7,0);
-;  END;
-
-RTC_WR_UNPROTECT:
-;	LD	D,$07
-	LD	D,%00000111
-;	LD	E,$00
-	LD	E,%00000000
-	CALL	RTC_WRITE
-	RET
-
-
-; function RTC_GET_TIME
-; input HL (memory address of buffer)
-; uses A,C,D,E
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_get_time(var buf: string);
-;   var
-;     n  : int;
-;  BEGIN
-;    lock();
-;    rtc_reset_off();
-;    { Write command, burst read }
-;    rtc_wr(255 - 64);
-;    { Read seconds }
-;    n := rtc_rd(); 0
-;    buf[16] := char(((n / 16) and $07)) + '0';
-;    buf[17] := char((n and $0f)) + '0';
-;    { Read minutes }
-;    n := rtc_rd(); 1
-;    buf[13] := char(((n / 16) and $07)) + '0';
-;    buf[14] := char((n and $0f)) + '0';
-;    buf[15] := ':';
-;    { Read hours }
-;    n := rtc_rd(); 2
-;    buf[10] := char(((n / 16) and $03)) + '0';
-;    buf[11] := char((n and $0f)) + '0';
-;    buf[12] := ':';
-;    { Read date }
-;    n := rtc_rd(); 3
-;    buf[7] := char(((n / 16) and $03)) + '0';
-;    buf[8] := char((n and $0f)) + '0';
-;    buf[9] := ' ';
-;    { Read month }
-;    n := rtc_rd(); 4
-;    buf[4] := char(((n / 16) and $03)) + '0';
-;    buf[5] := char((n and $0f)) + '0';
-;    buf[6] := '-';
-;    { Read day }
-;    n := rtc_rd(); 5
-;    {
-;    buf[4] := char(((n / 16) and $03)) + '0';
-;    buf[4] := char((n and $0f)) + '0';
-;    }
-;    { Read year }
-;    n := rtc_rd(); 6
-;    buf[1] := char(((n / 16) and $0f)) + '0';
-;    buf[2] := char((n and $0f)) + '0';
-;    buf[3] := '-';
-;    length(buf) := 17;
-;    rtc_reset_on();
-;    unlock();
-;  END rtc_get_time;
-
-RTC_GET_TIME:
-	DI				; disable interrupts during DS1302 read
-	CALL	RTC_RESET_OFF		; turn of RTC reset
-					;    { Write command, burst read }
-	LD	C,%10111111		; (255 - 64)
-	CALL	RTC_WR			; send COMMAND BYTE (BURST READ) to DS1302
-
-;    { Read seconds }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 16
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$07
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+15),A
-
-	; digit 17
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+16),A
-
-;    { Read minutes }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 13
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$07
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+12),A
-
-	; digit 14
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+13),A
-
-	; digit 15	
-	LD	A,':'
-	LD	(RTC_PRINT_BUFFER+14),A
-
-;    { Read hours }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 10
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$03
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+09),A
-
-	; digit 11
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+10),A
-
-	; digit 12
-	LD	A,':'
-	LD	(RTC_PRINT_BUFFER+11),A
-
-;    { Read date }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 07
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$03
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+06),A
-
-	; digit 08
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+07),A
-
-	; digit 09
-	LD	A,' '
-	LD	(RTC_PRINT_BUFFER+08),A
-
-;    { Read month }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 04
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$03
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+03),A
-
-	; digit 05
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+04),A
-
-	; digit 06
-	LD	A,'-'
-	LD	(RTC_PRINT_BUFFER+05),A
-
-;    { Read day }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 04
-;	LD	A,C			; put value output in Reg C into accumulator
-;	RLC	A
-;	RLC	A
-;	RLC	A
-;	RLC	A
-;	AND	$03
-;	ADD	A,'0'
-;	LD	(RTC_PRINT_BUFFER+03),A
-
-	; digit 04
-;	LD	A,C			; put value output in Reg C into accumulator
-;	AND	$0F
-;	ADD	A,'0'
-;	LD	(RTC_PRINT_BUFFER+03),A
-
-; add special code to put "DAY" value at end of string until better solution known
-
-	; digit 18
-	LD	A,'-'
-	LD	(RTC_PRINT_BUFFER+17),A
-
-	; digit 19
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+18),A
-
-	; digit 20
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+19),A
-
-;    { Read year }
-
-	CALL	RTC_RD			; read value from DS1302, value is in Reg C
-
-	; digit 01
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+00),A
-
-	; digit 02
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+01),A
-
-	; digit 03
-	LD	A,'-'
-	LD	(RTC_PRINT_BUFFER+02),A
-
-	CALL	RTC_RESET_ON		; turn RTC reset back on 
-	EI				; re-enable interrupts
-
-	RET				; Yes, end function and return
-
-
-; function RTC_SET_NOW
-; uses A, D, E
-;
-; based on following algorithm
-;
-;  { Set time to 96-02-18 19:43:00 }
-;  PROCEDURE rtc_set_now;
-;  BEGIN
-;    rtc_wr_unprotect();
-;    { Set seconds }
-;    rtc_write(0,0);
-;    { Set minutes }
-;    rtc_write(1,$43);
-;    { Set hours }
-;    rtc_write(2,$19);
-;    { Set date }
-;    rtc_write(3,$18);
-;    { Set month }
-;    rtc_write(4,$02);
-;    { Set day }
-;    rtc_write(5,$07);
-;    { Set year }
-;    rtc_write(6,$96);
-;    rtc_wr_protect();
-;  END;
-
-RTC_SET_NOW:
-; set time to 07-02-23 19:45:00-05 <-Friday
-	CALL RTC_WR_UNPROTECT
-; seconds
-	LD	D,$00
-	LD	A,(SECONDS)
-	LD	E,A
-	CALL RTC_WRITE
-
-; minutes
-	LD	D,$01
-	LD	A,(MINUTES)
-	LD	E,A
-	CALL RTC_WRITE
-
-; hours
-	LD	D,$02
-	LD	A,(HOURS)
-	LD	E,A
-	CALL RTC_WRITE
-
-; date
-	LD	D,$03
-	LD	A,(DATE)
-	LD	E,A
-	CALL RTC_WRITE
-
-; month
-	LD	D,$04
-	LD	A,(MONTH)
-	LD	E,A
-	CALL RTC_WRITE
-
-; day
-	LD	D,$05
-	LD	A,(DAY)
-	LD	E,A
-	CALL RTC_WRITE
-
-; year
-	LD	D,$06
-	LD	A,(YEAR)
-	LD	E,A
-	CALL RTC_WRITE
-
-	CALL RTC_WR_PROTECT
-	RET
-
-RTC_INIT_NOW:
-; set time to Current Time
-
-; year
-	LD	DE,RTC_TOP_LOOP1_INIT_YEAR
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(YEAR),A
-
-; month
-	LD	DE,RTC_TOP_LOOP1_INIT_MONTH
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(MONTH),A
-
-; date
-	LD	DE,RTC_TOP_LOOP1_INIT_DATE
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(DATE),A
-
-; hours
-	LD	DE,RTC_TOP_LOOP1_INIT_HOURS
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(HOURS),A
-
-; minutes
-	LD	DE,RTC_TOP_LOOP1_INIT_MINUTES
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(MINUTES),A
-
-; seconds
-	LD	DE,RTC_TOP_LOOP1_INIT_SECONDS
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(SECONDS),A
-
-; day
-	LD	DE,RTC_TOP_LOOP1_INIT_DAY
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	HEXIN
-	LD	(DAY),A
-
-	RET
-
-
-; function RTC_RESTART
-;
-; uses A, D, E,
-;
-; based on the following algorithm
-;
-;  { Restart clock, set seconds to 00 }
-;  PROCEDURE rtc_restart;
-;  BEGIN
-;    rtc_wr_unprotect();
-;    { Set seconds }
-;    rtc_write(0,0);
-;    rtc_wr_protect();
-;  END;
-
-RTC_RESTART:
-	CALL RTC_WR_UNPROTECT
-	LD	D,$00
-	LD	E,$00
-	CALL RTC_WRITE
-	CALL RTC_WR_PROTECT
-	RET
-
-
-; function RTC_CHARGE_ENABLE
-;
-; uses A, D, E
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_charge_enable;
-;  BEGIN
-;    rtc_wr_unprotect();
-;    { Enable trickle charger, 2kohm, 1 diode }
-;    rtc_write(8,$A5);
-;    rtc_wr_protect();
-;  END;
-;
-; Trickle Charge Current:
-;
-; Imax = (5.0V - (0.7 * Ndiode)) / R
-; (5.0 - (0.7 * 1)) / 2000 = .00215A = 2.15 milliamps
-; (5.0 - (0.7 * 1)) / 8000 = 0.0005375A = .537 milliamps
-;
-
-RTC_CHARGE_ENABLE
-	CALL	RTC_WR_UNPROTECT
-	LD	D,$08
-	LD	E,$A5
-	CALL	RTC_WRITE
-	CALL	RTC_WR_PROTECT
-	RET
-
-
-; function RTC_CHARGE_DISABLE
-;
-; uses A, D, E
-;
-; based on following algorithm
-;
-;  PROCEDURE rtc_charge_disable;
-;  BEGIN
-;    rtc_wr_unprotect();
-;    { Disable trickle charger}
-;    rtc_write(8,$00);
-;    rtc_wr_protect();
-;  END;
-
-RTC_CHARGE_DISABLE
-	CALL	RTC_WR_UNPROTECT
-	LD	D,$08
-	LD	E,$00
-	CALL	RTC_WRITE
-	CALL	RTC_WR_PROTECT
-	RET
-
-
-; function TEST_BIT_DELAY
-;
-; based on the following algorithm
-;
-;
-;  PROCEDURE test_bit_delay();
-;   var
-;     i,t0,t1 : int;
-;  BEGIN
-;    putln("Testing bit delay...");
-;    t0 := sys_time();
-;    for i := 0 while i < 1000 do inc(i) loop
-;      rtc_bit_delay();
-;    end loop;
-;    t1 := sys_time();
-;    putln(i," rtc_bit_delay calls took ",t1-t0," ms.");
-;  END;
-
-RTC_TEST_BIT_DELAY
-	LD	DE,TESTING_BIT_DELAY_MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	LD	C,01H			; CP/M console input call
-	CALL	0005H
-
-	; test should take approximately 43 seconds based on the following code analysis
-	; of Z80 T-states on a 4 MHz processor
-	; =(4+15*(7+255*(7+255*(17+144+4+10)+4+10)+10)+7)/4/1000000
-
-	LD	B,$0F
-PAUSE:
-	LD	C,$FF
-PAUSE1:
-	LD	A,$FF			; ADJUST THE TIME 13h IS FOR 4 MHZ
-PAUSE2:
-	CALL	RTC_BIT_DELAY		; CAUSE 36uS DELAY
-	DEC	A			; DEC COUNTER.
-	JP	NZ,PAUSE2		; JUMP TO PAUSE2 IF A <> 0.
-	DEC	C			; DEC COUNTER
-	JP	NZ,PAUSE1		; JUMP TO PAUSE1 IF C <> 0.
-	DJNZ	PAUSE			; JUMP TO PAUSE IF B <> 0.
-
-	LD	DE,TESTING_BIT_DELAY_OVER
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	RET
-
-
-; function RTC_HELP
-;
-; based on following algorithm
-;
-;  PROCEDURE help();
-;  BEGIN
-;    putln();
-;    putln("rtc: ",version);
-;    putln("rtc: Commands: (E)xit (T)ime st(A)rt (S)et (R)aw (L)oop (C)harge (N)ocharge (H)elp");
-;  END;
-
-RTC_HELP
-	LD	DE,RTC_HELP_MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	RET
-	
-; function RTC_INIT
-;
-; Determine RTC port based on hardware platform
-; and record it dynamically in code (see RTC_IN and RTC_OUT).
-;
-
-RTC_INIT:
-	CALL	IDBIO		; Id BIOS, 1=HBIOS, 2=UBIOS
-	DEC	A		; Test for HBIOS
-	JP	Z,HINIT		; Do HBIOS setup
-	DEC	A		; Test for UBIOS
-	JP	Z,UINIT		; Do UBIOS setup
-;
-	; Neither UNA nor RomWBW
-	LD	DE,BIOERR	; BIOS error message
-	LD	C,9		; BDOS string display function
-	CALL	BDOS		; Do it
-	JP	0		; Bail out!
-;
-HINIT:
-;
-	; Display RomWBW notification string
-	LD	DE,HBTAG	; BIOS notification string
-	LD	C,9		; BDOS string display function
-	CALL	BDOS		; Do it
-;
-	; Get platform id from RomWBW HBIOS
-	LD	B,0F1H		; HBIOS VER function 0xF1
-	LD	C,0		; Required reserved value
-	RST	08		; Do it, L := Platform ID
-	LD	A,L		; Move to A
-;
-	; Assign correct port to C
-	LD	C,PORT_SBC
-	LD	DE,PLT_SBC
-	CP	$01		; SBC
-	JP	Z,RTC_INIT2
-	CP	$02		; ZETA
-	JP	Z,RTC_INIT2
-	CP	$03		; ZETA 2
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_N8
-	LD	DE,PLT_N8
-	CP	$04		; N8
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_MK4
-	LD	DE,PLT_MK4
-	CP	$05		; Mark IV
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_RCZ80
-	LD	DE,PLT_RCZ80
-	CP	$07		; RCBus w/ Z80
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_RCZ180
-	LD	DE,PLT_RCZ180
-	CP	$08		; RCBus w/ Z180
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_EZZ80
-	LD	DE,PLT_EZZ80
-	CP	$09		; Easy Z80
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_SCZ180
-	LD	DE,PLT_SCZ180
-	CP	$0A		; SCZ180
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_DYNO
-	LD	DE,PLT_DYNO
-	CP	11		; DYNO
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_RCZ280
-	LD	DE,PLT_RCZ280
-	CP	12		; RCZ280
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_MBC
-	LD	DE,PLT_MBC
-	CP	13		; MBC
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_RPH
-	LD	DE,PLT_RPH
-	CP	14		; RHYOPHYRE
-	JP	Z,RTC_INIT2
-;
-	LD	C,PORT_DUO
-	LD	DE,PLT_DUO
-	CP	17		; DUODYNE
-	JP	Z,RTC_INIT2
-;
-	; Unknown platform
-	LD	DE,PLTERR	; BIOS error message
-	LD	C,9		; BDOS string display function
-	CALL	BDOS		; Do it
-	JP	0		; Bail out!
-;
-UINIT:
-	;; Display UNA notification string
-	;LD	DE,UBTAG	; BIOS notification string
-	;LD	C,9		; BDOS string display function
-	;CALL	BDOS		; Do it
-;
-	; Notify UNA not supported at present
-	LD	DE,UBERR	; BIOS not support message
-	LD	C,9		; BDOS string display function
-	CALL	BDOS		; Do it
-	JP	0		; Bail out!
-	
-RTC_INIT2:
-	; Record port number in code routines
-	LD	A,C
-	LD	(INP),A
-	LD	(OUTP),A
-;
-	; Display platform
-	LD	C,9		; BDOS string display function
-	CALL	BDOS		; Do it
-	RET
-
-;
-; Identify active BIOS.  RomWBW HBIOS=1, UNA UBIOS=2, else 0
-;
-IDBIO:
-;
-	; Check for UNA (UBIOS)
-	LD	A,(0FFFDH)	; fixed location of UNA API vector
-	CP	0C3H		; jp instruction?
-	JR	NZ,IDBIO1	; if not, not UNA
-	LD	HL,(0FFFEH)	; get jp address
-	LD	A,(HL)		; get byte at target address
-	CP	0FDH		; first byte of UNA push ix instruction
-	JR	NZ,IDBIO1	; if not, not UNA
-	INC	HL		; point to next byte
-	LD	A,(HL)		; get next byte
-	CP	0E5H		; second byte of UNA push ix instruction
-	JR	NZ,IDBIO1	; if not, not UNA, check others
-	LD	A,2		; UNA BIOS id = 2
-	RET			; and done
-;
-IDBIO1:
-	; Check for RomWBW (HBIOS)
-	LD	HL,(0FFFEH)	; HL := HBIOS ident location
-	LD	A,'W'		; First byte of ident
-	CP	(HL)		; Compare
-	JR	NZ,IDBIO2	; Not HBIOS
-	INC	HL		; Next byte of ident
-	LD	A,~'W'		; Second byte of ident
-	CP	(HL)		; Compare
-	JR	NZ,IDBIO2	; Not HBIOS
-	LD	A,1		; HBIOS BIOS id = 1
-	RET			; and done
-;
-IDBIO2:
-	; No idea what this is
-	XOR	A		; Setup return value of 0
-	RET			; and done
-
-
-; function RTC_TOP_LOOP
-;
-; based on following algorithm
-;
-;  PROCEDURE toploop();
-;   var
-;     err,i,n,fd  : int;
-;  BEGIN
-;    putln();
-;    help();
-;    rtc_reset_on();
-;    hold(100);
-;    test_bit_delay();
-;    rtc_charge_disable();
-;    putln("rtc: trickle charger disabled.");
-;    loop
-;       put("rtc>");
-;       gets(line);
-;       if line = "exit" then
-;          putln("Bye.");
-;          exit(0);
-;       elsif line = "charge" then
-;          putln("Trickle charger enabled.");
-;          rtc_charge_enable();
-;       elsif line = "nocharge" then
-;          putln("Trickle charger disabled.");
-;          rtc_charge_disable();
-;       elsif line = "start" then
-;          rtc_restart();
-;          putln("Restarting RTC");
-;       elsif line = "t" then
-;          rtc_get_time(line);
-;          putln("Current time: ",line);
-;       elsif line = "raw" then
-;          putln();
-;          putln("Raw read loop, hit any key to stop...");
-;          while read(0,@n,1 + RD_NOWAIT) = 0 loop
-;             put(#13,"sec=",hexstr(rtc_read(0))^);
-;             put(" min=",hexstr(rtc_read(1))^);
-;             hold(500);
-;          end loop;
-;       elsif line = "loop" then
-;          putln();
-;          putln("Clock loop, hit any key to stop...");
-;          while read(0,@n,1 + RD_NOWAIT) = 0 loop
-;             rtc_get_time(line);
-;             put(#13,line);
-;             hold(200);
-;          end loop;
-;       elsif line = "set" then
-;          putln("Setting RTC time to 96-02-18 19:43:00");
-;          rtc_set_now();
-;       elsif (line = "help") or (line = "?") then
-;          help();
-;       elsif length(line) <> 0 then
-;          putln("You typed: """,line,"""");
-;       end;
-;    end loop;
-;  END toploop;
-;  Note:above code is not fully in sync with current menu code
-
-RTC_TOP_LOOP:
-	CALL	RTC_RESET_ON
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-	CALL	RTC_BIT_DELAY
-
-	LD	A,(FCB+1)		; If there a command line tail
-	CP	'/'			; get the command and feed it 
-	LD	A,(FCB+2)		; into the input stream
-	JR	Z,RTC_UCL		
-
-	LD	DE,CRLF_MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	CALL	RTC_HELP
-
-RTC_TOP_LOOP_1:
-	LD	DE,RTC_TOP_LOOP1_PROMPT
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	
-	LD	C,01H			; CP/M console input call
-	CALL	0005H
-RTC_UCL:
-	AND	%01011111		; handle lower case responses to menu
-
-	CP	'L'
-	JP	Z,RTC_TOP_LOOP_LOOP
-	
-	CP	'R'
-	JP	Z,RTC_TOP_LOOP_RAW
-	
-	CP	'G'
-	JP	Z,RTC_TOP_LOOP_GET
-
-	CP	'P'
-	JP	Z,RTC_TOP_LOOP_PUT
-	
-	CP	'E'
-;	JP	Z,RTC_TOP_LOOP_EXIT
-	RET	Z
-	
-	CP	'H'
-	JP	Z,RTC_TOP_LOOP_HELP
-	
-	CP	'D'
-	JP	Z,RTC_TOP_LOOP_DELAY	
-
-	CP	'B'
-	JP	Z,RTC_TOP_LOOP_BOOT	
-
-	CP	'W'
-	JP	Z,RTC_TOP_LOOP_WARMSTART
-
-	CP	'C'
-	JP	Z,RTC_TOP_LOOP_CHARGE
-
-	CP	'N'
-	JP	Z,RTC_TOP_LOOP_NOCHARGE
-
-	CP	'A'
-	JP	Z,RTC_TOP_LOOP_START
-
-	CP	'S'
-	JP	Z,RTC_TOP_LOOP_SET
-
-	CP	'I'
-	JP	Z,RTC_TOP_LOOP_INIT
-	
-	CP	'T'
-	JP	Z,RTC_TOP_LOOP_TIME
-
-	LD	DE,CRLF_MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	
-	JR	RTC_TOP_LOOP_1
-
-;RTC_TOP_LOOP_EXIT:
-;	RET
-
-RTC_TOP_LOOP_HELP:
-	CALL	RTC_HELP
-	JP	RTC_TOP_LOOP_1
-	
-RTC_TOP_LOOP_DELAY:
-	CALL	RTC_TEST_BIT_DELAY
-	JP	RTC_TOP_LOOP_1
-	
-RTC_TOP_LOOP_BOOT:
-	LD	DE,BOOTMSG		; BOOT message
-	LD	C,9			; BDOS string display function
-	CALL	BDOS			; Do it
-	; WAIT FOR MESSAGE TO BE DISPLAYED
-	LD	HL,10000
-DELAY_LOOP:				; LOOP IS 26TS
-	DEC	HL			; 6TS
-	LD	A,H			; 4TS
-	OR	L			; 4TS
-	JR	NZ,DELAY_LOOP		; 12TS
-	; RESTART SYSTEM FROM ROM BANK 0, ADDRESS $0000
-	LD	B,BF_SYSRESET		; SYSTEM RESTART
-	LD	C,BF_SYSRES_COLD	; COLD START
-	CALL	$FFF0			; CALL HBIOS
-	
-
-RTC_TOP_LOOP_WARMSTART:
-	LD	B,BF_SYSRESET		; SYSTEM RESTART
-	LD	C,BF_SYSRES_WARM	; WARM START
-	CALL	$FFF0			; CALL HBIOS
-
-RTC_TOP_LOOP_CHARGE:
-	LD	DE,RTC_TOP_LOOP1_CHARGE
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_CHARGE_ENABLE
-	LD	A,(FCB+1)		; If we came from the
-	CP	'/'			; command line
-	RET	Z			; exit back to CP/M
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_NOCHARGE:
-	LD	DE,RTC_TOP_LOOP1_NOCHARGE
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_CHARGE_DISABLE
-	LD	A,(FCB+1)		; If we came from the
-	CP	'/'			; command line
-	RET	Z			; exit back to CP/M
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_START:
-	LD	DE,RTC_TOP_LOOP1_START
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_RESTART
-	JP	RTC_TOP_LOOP_1
-	
-RTC_TOP_LOOP_SET:
-	LD	DE,RTC_TOP_LOOP1_SET
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_SET_NOW
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_INIT:
-	LD	DE,RTC_TOP_LOOP1_INIT
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_INIT_NOW
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_TIME:
-	LD	DE,RTC_TOP_LOOP1_TIME
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	CALL	RTC_GET_TIME
-	LD	DE,RTC_PRINT_BUFFER
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-	LD	A,(FCB+1)		; If we came from the
-	CP	'/'			; command line
-	RET	Z			; exit back to CP/M
-	JP	RTC_TOP_LOOP_1
-	
-RTC_TOP_LOOP_RAW:
-	LD	DE,RTC_TOP_LOOP1_RAW
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-RTC_TOP_LOOP_RAW1:
-
-;	{ Read seconds }
-	LD	D,$00			; seconds register in DS1302
-	CALL	RTC_READ		; read value from DS1302, value is in Reg C
-
-	; digit 16
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$07
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+15),A
-
-	; digit 17
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+16),A
-
-;	{ Read minutes }
-
-	LD	D,$01			; minutes register in DS1302
-	CALL	RTC_READ		; read value from DS1302, value is in Reg C
-
-	; digit 13
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$07
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+12),A
-
-	; digit 14
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	ADD	A,'0'
-	LD	(RTC_PRINT_BUFFER+13),A
-
-	; digit 15
-	LD	A,':'
-	LD	(RTC_PRINT_BUFFER+14),A
-
-	; digits 1-12 and 18-20 are spaces
-	LD	A,' '			; space
-	LD	(RTC_PRINT_BUFFER+19),A
-	LD	(RTC_PRINT_BUFFER+18),A
-	LD	(RTC_PRINT_BUFFER+17),A
-	LD	(RTC_PRINT_BUFFER+11),A
-	LD	(RTC_PRINT_BUFFER+10),A
-	LD	(RTC_PRINT_BUFFER+09),A
-	LD	(RTC_PRINT_BUFFER+08),A
-	LD	(RTC_PRINT_BUFFER+07),A
-	LD	(RTC_PRINT_BUFFER+06),A
-	LD	(RTC_PRINT_BUFFER+05),A
-	LD	(RTC_PRINT_BUFFER+04),A
-	LD	(RTC_PRINT_BUFFER+03),A
-	LD	(RTC_PRINT_BUFFER+02),A
-	LD	(RTC_PRINT_BUFFER+01),A
-	LD	(RTC_PRINT_BUFFER+00),A
-
-	LD	DE,RTC_PRINT_BUFFER
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	LD	C,01H			; CP/M console input call
-	CALL	0005H
-
-	CP	' '			; space
-	JP	Z,RTC_TOP_LOOP_RAW1
-
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_LOOP:
-	LD	DE,RTC_TOP_LOOP1_LOOP
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-RTC_TOP_LOOP_LOOP1:
-	CALL	RTC_GET_TIME
-
-	LD	DE,RTC_PRINT_BUFFER
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	LD	C,01H			; CP/M console input call
-	CALL	0005H
-
-	CP	' '
-	JP	Z,RTC_TOP_LOOP_LOOP1	
-
-	JP	RTC_TOP_LOOP_1
-
-RTC_TOP_LOOP_PUT:
-	LD	A,$01			; set PUT as true
-	LD	(GET_PUT),A
-RTC_TOP_LOOP_GET:
-	LD	DE,RTC_TOP_LOOP1_GET
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	CALL	HEXIN			; read NVRAM address
-	LD	(PUT_ADR),A		; store for possible PUT later
-
-;	{ Read NVRAM address }
-	LD	D,A			; seconds register in DS1302
-	CALL	RTC_READ		; read value from DS1302, value is in Reg C
-
-	; first digit
-	LD	A,C			; put value output in Reg C into accumulator
-	RLC	A
-	RLC	A
-	RLC	A
-	RLC	A
-	AND	$0F
-	CP	0AH			;TEST FOR NUMERIC & convert to ASCII
-	JR	C,NUM1			;if not ALPHA, its numeric and skip
-	ADD	A,$07
-
-NUM1:	ADD	A,'0'
-	LD	(RTC_GET_BUFFER),A
-
-	; second digit
-	LD	A,C			; put value output in Reg C into accumulator
-	AND	$0F
-	CP	0AH			;TEST FOR NUMERIC & convert to ASCII
-	JR	C,NUM2			;if not ALPHA, its numeric and skip
-	ADD	A,$07	
-
-NUM2:	ADD	A,'0'
-	LD	(RTC_GET_BUFFER+1),A
-
-	LD	DE,CRLF_MSG
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	LD	DE,RTC_GET_BUFFER
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-	LD	A,(GET_PUT)		; check if GET or PUT mode
-	CP	$00
-	JP	Z,RTC_GET_PUT_EXIT	; if GET mode, exit
-
-	LD	DE,RTC_TOP_LOOP1_PUT
-	LD	C,09H			; CP/M write string to console call
-	CALL	0005H
-
-;	{ Write NVRAM address }
-
-	CALL	RTC_WR_UNPROTECT
-
-	CALL	HEXIN			; read NVRAM address
-	LD	E,A			; new data for NVRAM register in DS1302
-	LD	A,(PUT_ADR)
-	LD	D,A			; load address from before
-
-	CALL	RTC_WRITE		; read value from DS1302, value is in Reg C
-
-	CALL	RTC_WR_PROTECT
-
-RTC_GET_PUT_EXIT:
-	LD	A,$00			; reset GET mode
-	LD	(GET_PUT),A
-	JP	RTC_TOP_LOOP_1
-
-;
-; Text Strings
-;
-
-MSG:
-	.TEXT	"Start RTC Program"
-CRLF_MSG:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-TESTING_BIT_DELAY_MSG:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Testing bit delay.  Successful test is ~43 sec."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Start clock and press space bar."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-TESTING_BIT_DELAY_OVER:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Test complete.  Stop clock."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_HELP_MSG:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"RTC: Version 1.9"
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Commands: E)xit T)ime st(A)rt S)et R)aw L)oop C)harge N)ocharge D)elay I)nit G)et P)ut B)oot W)arm-start H)elp"
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_PROMPT:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"RTC>"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_CHARGE:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Trickle charger enabled."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_NOCHARGE:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Trickle charger disabled."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_START:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Restart RTC."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_TIME:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Current time: "
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_RAW:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Raw read Loop.  Press SPACE BAR for next."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_LOOP:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Clock Loop.  Press SPACE BAR for next."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_SET:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Set RTC time."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Init date/time."
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_GET:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"Get NVRAM addr:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_PUT:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"NVRAM data:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_SECONDS:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"SECONDS:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_MINUTES:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"MINUTES:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_HOURS:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"HOURS:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_DATE:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"DATE:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_MONTH:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"MONTH:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_DAY:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"DAY:"
-	.DB	"$"			; Line terminator
-
-RTC_TOP_LOOP1_INIT_YEAR:
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"YEAR:"
-	.DB	"$"			; Line terminator
-
-RTC_PRINT_BUFFER:
-	.FILL	20,0			; Buffer for formatted date & time to print
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; line terminator
-
-RTC_GET_BUFFER:
-	.FILL	2,0			; Buffer for formatted NVRAM data to print
-	.DB	0Ah, 0Dh		; line feed and carriage return
-	.DB	"$"			; line terminator
-
-BIOERR		.TEXT	"\r\nUnknown BIOS, aborting...\r\n$"
-PLTERR		.TEXT	"\r\n\r\nUnknown/unsupported hardware platform, aborting...\r\n$"
-UBERR		.TEXT	"\r\nUNA UBIOS is not currently supported, aborting...\r\n$"
-HBTAG		.TEXT	"RomWBW HBIOS$"
-UBTAG		.TEXT	"UNA UBIOS"
-BOOTMSG		.TEXT	"\r\n\r\nRebooting...$"
-PLT_SBC		.TEXT	", SBC/Zeta RTC Latch Port 0x70\r\n$"
-PLT_N8		.TEXT	", N8 RTC Latch Port 0x88\r\n$"
-PLT_MK4		.TEXT	", Mark 4 RTC Latch Port 0x8A\r\n$"
-PLT_RCZ80	.TEXT	", RCBus Z80 RTC Module Latch Port 0xC0\r\n$"
-PLT_RCZ180	.TEXT	", RCBus Z180 RTC Module Latch Port 0x0C\r\n$"
-PLT_EZZ80	.TEXT	", Easy Z80 RTC Module Latch Port 0xC0\r\n$"
-PLT_SCZ180	.TEXT	", SC Z180 RTC Module Latch Port 0x0C\r\n$"
-PLT_DYNO	.TEXT	", DYNO RTC Module Latch Port 0x0C\r\n$"
-PLT_RCZ280	.TEXT	", RCBus Z280 RTC Module Latch Port 0xC0\r\n$"
-PLT_MBC		.TEXT	", MBC RTC Latch Port 0x70\r\n$"
-PLT_RPH		.TEXT	", RHYOPHYRE RTC Latch Port 0x84\r\n$"
-PLT_DUO		.TEXT	", DUODYNE RTC Latch Port 0x70\r\n$"
-
-;
-; Generic FOR-NEXT loop algorithm
-;
-;	LD	A,$00			; set A=0 index counter of FOR loop
-;FOR_LOOP:
-;	PUSH	AF			; save accumulator as it is the index counter in FOR loop
-;	{ contents of FOR loop here }	; setup RTC with RST and RD high, SCLK low
-;	POP	AF			; recover accumulator as it is the index counter in FOR loop
-;	INC	A			; increment A in FOR loop (A=A+1)
-;	CP	$08			; is A < $08 ?
-;	JP	NZ,FOR_LOOP		; No, do FOR loop again
-;	RET				; Yes, end function and return.  Read RTC value is in C
-
-YEAR	.DB	$18
-MONTH	.DB	$11
-DATE	.DB	$08
-HOURS	.DB	$00
-MINUTES	.DB	$00
-SECONDS	.DB	$00
-DAY	.DB	$05
-GET_PUT	.DB	$00
-
-PUT_ADR	.DB	0
-
-	.END
-
diff --git a/Source/Apps/rtc/Build.cmd b/Source/Apps/rtc/Build.cmd
new file mode 100644
index 00000000..02c4f50a
--- /dev/null
+++ b/Source/Apps/rtc/Build.cmd
@@ -0,0 +1,12 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF rtc.asm rtc.com rtc.lst || exit /b
+tasm -t80 -g3 -fFF rtchb.asm rtchb.com rtchb.lst || exit /b
+
+copy /Y rtc.com ..\..\..\Binary\Apps\ || exit /b
+copy /Y rtchb.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/rtc/Clean.cmd b/Source/Apps/rtc/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/rtc/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/rtc/Makefile b/Source/Apps/rtc/Makefile
new file mode 100644
index 00000000..5a0e4f0c
--- /dev/null
+++ b/Source/Apps/rtc/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = rtc.com rtchb.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/rtc/rtc.asm b/Source/Apps/rtc/rtc.asm
new file mode 100644
index 00000000..7d456da7
--- /dev/null
+++ b/Source/Apps/rtc/rtc.asm
@@ -0,0 +1,1808 @@
+	.Title	"RTC"
+;
+; Program:	rtc.asm
+; Author:	Andrew Lynch
+; Date:		22 Feb 2007
+; Enviroment:	TASM MS-DOS Z80 Cross Assembler source for CP/M
+;
+;[2011/8/11] VK5DG modified for N8
+; Changed base address to $88
+; Changed trickle charger value to 2k+2 diodes for DS1210s
+;
+;[2012/2/7] WBW modified to build for either
+;           traditional N8VEM/Zeta or N8 via conditionals
+;
+;[2013/12/29] WBW modified to build for MK4
+;
+;[2017/11/29] WBW modified to adjust to RTC in use dynamically
+;             using HBIOS platform detection
+;
+;[2018/11/8] v1.2 PMS Add boot option. Code optimization.
+;
+;[2019/06/21] v1.3 Finalized RCBus Z180 support.
+;
+;[2019/08/11] v1.4 Support SCZ180 platform.
+;
+;[2020/02/02] v1.5 PMS Basic command line support
+;
+;[2020/05/15] v1.6 Added Warm Start option
+;
+;[2021/07/10] v1.7 Support MBC (AJL)
+;
+;[2022/03/27] v1.8 Support RHYOPHYRE
+;
+;[2023/07/07] v1.9 Support DUODYNE
+;
+;[2024/09/02] v1.10  Support Genesis STD Z180
+;
+; Constants
+;
+mask_data	.EQU	%10000000	; RTC data line
+mask_clk	.EQU	%01000000	; RTC Serial Clock line
+mask_rd		.EQU	%00100000	; Enable data read from RTC
+mask_rst	.EQU	%00010000	; De-activate RTC reset line
+
+PORT_SBC	.EQU	$70		; RTC port for SBC/ZETA
+PORT_N8		.EQU	$88		; RTC port for N8
+PORT_MK4	.EQU	$8A		; RTC port for MK4
+PORT_RCZ80	.EQU	$C0		; RTC port for RCBus
+PORT_RCZ180	.EQU	$0C		; RTC port for RCBus
+PORT_EZZ80	.EQU	$C0		; RTC port for EZZ80 (actually does not have one!!!)
+PORT_SCZ180	.EQU	$0C		; RTC port for SCZ180
+PORT_DYNO	.EQU	$0C		; RTC port for DYNO
+PORT_RCZ280	.EQU	$C0		; RTC port for RCZ280
+PORT_MBC	.EQU	$70		; RTC port for MBC
+PORT_RPH	.EQU	$84		; RTC port for RHYOPHYRE
+PORT_DUO	.EQU	$94		; RTC port for DUODYNE
+PORT_STDZ180 .EQU $84         ; RTC Port for STD Bus Z180 board
+
+
+BDOS		.EQU	5		; BDOS invocation vector
+FCB		.EQU	05CH		; Start of command line
+
+;BID_BOOT	.EQU	$00
+;HB_BNKCALL	.EQU	$FFF9
+
+BF_SYSRESET	.EQU	$F0		; RESTART SYSTEM
+
+BF_SYSRES_INT	.EQU	$00		; RESET HBIOS INTERNAL
+BF_SYSRES_WARM	.EQU	$01		; WARM START (RESTART BOOT LOADER)
+BF_SYSRES_COLD	.EQU	$02		; COLD START
+
+;
+; Program
+;
+	.ORG	0100H
+
+LOOP:
+	LD	DE,MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+;	program starts here
+
+	CALL	RTC_INIT		; Program initialization
+
+	CALL	RTC_TOP_LOOP
+
+	LD	C,00H			; CP/M system reset call - shut down
+	CALL	0005H
+		
+	HALT				; This code is never reached
+
+
+; function HEXSTR
+; input number in A
+; output upper nibble of number in ASCII in H
+; output lower nibble of number in ASCII in L
+; uses BC
+;
+; based on following algorithm:
+;
+;  const
+;    hextab : string = ('0','1','2','3','4','5','6','7','8',
+;                       '9','A','B','C','D','E','F');
+;
+;  PROCEDURE hexstr(n: int): ^string;
+;  BEGIN
+;    n := n and 255;
+;    tmpstr[1] := hextab[n / 16];
+;    tmpstr[2] := hextab[n and 15];
+;    tmpstr[0] := #2;
+;    return @tmpstr;
+;  END;
+
+
+HEXSTR:
+	PUSH	BC			;SAVE BC
+	LD	B,A
+	RLC	A			;DO HIGH NIBBLE FIRST  
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	0FH			;ONLY THIS NOW
+	ADD	A,30H			;TRY A NUMBER
+	CP	3AH			;TEST IT
+	JR	C,HEXSTR1		;IF CY SET SAVE 'NUMBER' in H
+	ADD	A,07H			;MAKE IT AN ALPHA
+HEXSTR1:
+	LD	H,A			;SAVE 'ALPHA' in H
+	LD	A,B			;NEXT NIBBLE
+	AND	0FH			;JUST THIS
+	ADD	A,30H			;TRY A NUMBER
+	CP	3AH			;TEST IT
+	JR	C,HEXSTR2		;IF CY SET SAVE 'NUMBER' in L
+	ADD	A,07H			;MAKE IT ALPHA
+
+HEXSTR2:
+	LD	L,A			;SAVE 'ALPHA' in L
+	POP	BC			;RESTORE BC
+	RET
+
+
+;*****************************************************
+;*	GET K.B. DATA & MAKE IT 'HEX'
+;*****************************************************
+
+HEXIN:
+	PUSH	BC		;SAVE BC REGS.
+	CALL	NIBL		;DO A NIBBLE
+	RLC	A		;MOVE FIRST BYTE UPPER NIBBLE  
+	RLC	A
+	RLC	A
+	RLC	A
+	LD	B,A		;SAVE ROTATED BYTE
+	PUSH	BC
+		
+	CALL NIBL		;DO NEXT NIBBLE
+	POP	BC
+	ADD	A,B		;COMBINE NIBBLES IN ACC.
+	POP	BC		;RESTORE BC
+	RET			;DONE  
+NIBL:
+	LD	C,01H		; CP/M console input call
+	CALL	0005H		;GET K.B. DATA
+	CP	40H		;TEST FOR ALPHA
+	JR	NC,ALPH
+	AND	0FH		;GET THE BITS
+	RET
+ALPH:
+	AND	0FH		;GET THE BITS
+	ADD	A,09H		;MAKE IT HEX A-F
+	RET
+	
+; function RTC_IN
+;
+; read a byte from RTC port, return in A
+; NOTE: port address is dynamically set in RTC_INIT
+
+RTC_IN:
+INP	.EQU	$ + 1
+	IN	A,($FF)
+	RET
+	
+; function RTC_OUT
+;
+; write a byte to RTC port, value in A
+; NOTE: port address is dynamically set in RTC_INIT
+
+RTC_OUT:
+OUTP	.EQU	$ + 1
+	OUT	($FF),A
+	RET
+
+; function RTC_BIT_DELAY
+;
+; based on following algorithm:
+;
+;  { Make a short delay }
+;  PROCEDURE rtc_bit_delay;
+;   var
+;     x : int;
+;  BEGIN
+;    x := 3;
+;  END;
+
+RTC_BIT_DELAY:				; purpose is to delay ~36 uS or 144 t-states at 4MHz
+	PUSH	AF			; 11 t-states
+	LD	A,07H			; 7 t-states ADJUST THE TIME 13h IS FOR 4 MHZ
+RTC_BIT_DELAY1:
+	DEC	A			; 4 t-states DEC COUNTER. 4 T-states = 1 uS.
+	JP	NZ,RTC_BIT_DELAY1	; 10 t-states JUMP TO PAUSELOOP2 IF A <> 0.
+
+	NOP				; 4 t-states
+	NOP				; 4 t-states
+	POP	AF			; 10 t-states
+	RET				; 10 t-states (144 t-states total)
+
+
+; function RTC_RESET
+;
+; based on following algorithm:
+;
+;  { Output a RTC reset signal }
+;  PROCEDURE rtc_reset;
+;  BEGIN
+;    out(rtc_base,mask_data + mask_rd);
+;    rtc_bit_delay();
+;    rtc_bit_delay();
+;    out(rtc_base,mask_data + mask_rd + mask_rst);
+;    rtc_bit_delay();
+;    rtc_bit_delay();
+;  END;
+;
+RTC_RESET:
+	LD	A,mask_data + mask_rd
+	;OUT	(RTC),A
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+	LD	A,mask_data + mask_rd + mask_rst
+	;OUT	(RTC),A
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+	RET
+
+
+; function RTC_RESET_ON
+;
+; based on following algorithm:
+;
+;  { Assert RTC reset signal }
+;  PROCEDURE rtc_reset_on;
+;  BEGIN
+;    out(rtc_base,mask_data + mask_rd);
+;    rtc_bit_delay();
+;    rtc_bit_delay();
+;  END;
+
+RTC_RESET_ON:
+	LD	A,mask_data + mask_rd
+	;OUT	(RTC),A
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+	RET
+
+; function RTC_RESET_OFF
+;
+; based on following algorithm:
+;
+;  { De-assert RTC reset signal }
+;  PROCEDURE rtc_reset_off;
+;  BEGIN
+;    out(rtc_base,mask_data + mask_rd + mask_rst);
+;    rtc_bit_delay();
+;    rtc_bit_delay();
+;  END;
+
+RTC_RESET_OFF:
+	LD	A,mask_data + mask_rd + mask_rst
+	;OUT	(RTC),A
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+	RET
+
+; function RTC_WR
+; input value in C
+; uses A
+;
+;  PROCEDURE rtc_wr(n : int);
+;   var
+;    i : int;
+;  BEGIN
+;    for i := 0 while i < 8 do inc(i) loop
+;       if (n and 1) <> 0 then
+;          out(rtc_base,mask_rst + mask_data);
+;          rtc_bit_delay();
+;          out(rtc_base,mask_rst + mask_clk + mask_data);
+;       else
+;          out(rtc_base,mask_rst);
+;          rtc_bit_delay();
+;          out(rtc_base,mask_rst + mask_clk);
+;       end;
+;       rtc_bit_delay();
+;       n := shr(n,1);
+;    end loop;
+;  END;
+
+RTC_WR:
+	XOR	A			; set A=0 index counter of FOR loop
+
+RTC_WR1:
+	PUSH	AF			; save accumulator as it is the index counter in FOR loop
+	LD	A,C			; get the value to be written in A from C (passed value to write in C)
+	BIT	0,A			; is LSB a 0 or 1?
+	JP	Z,RTC_WR2		; if it's a 0, handle it at RTC_WR2.
+					; LSB is a 1, handle it below
+					; setup RTC latch with RST and DATA high, SCLK low
+	LD	A,mask_rst + mask_data
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY	; let it settle a while
+					; setup RTC with RST, DATA, and SCLK high
+	LD	A,mask_rst + mask_clk + mask_data
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+	JP	RTC_WR3		; exit FOR loop 
+
+RTC_WR2:
+					; LSB is a 0, handle it below
+	LD	A,mask_rst		; setup RTC latch with RST high, SCLK and DATA low
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY	; let it settle a while
+					; setup RTC with RST and SCLK high, DATA low
+	LD	A,mask_rst + mask_clk
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+
+RTC_WR3:
+	CALL	RTC_BIT_DELAY	; let it settle a while
+	RRC	C			; move next bit into LSB position for processing to RTC
+	POP	AF			; recover accumulator as it is the index counter in FOR loop
+	INC	A			; increment A in FOR loop (A=A+1)
+	CP	$08			; is A < $08 ?
+	JP	NZ,RTC_WR1		; No, do FOR loop again
+	RET				; Yes, end function and return
+
+
+; function RTC_RD
+; output value in C
+; uses A
+;
+; function RTC_RD
+;
+;  PROCEDURE rtc_rd(): int ;
+;   var
+;     i,n,mask : int;
+;  BEGIN
+;    n := 0;
+;    mask := 1;
+;    for i := 0 while i < 8 do inc(i) loop
+;       out(rtc_base,mask_rst + mask_rd);
+;       rtc_bit_delay();
+;       if (in(rtc_base) and #1) <> #0 then
+;          { Data = 1 }
+;          n := n + mask;
+;       else
+;          { Data = 0 }
+;       end;
+;       mask := shl(mask,1);
+;       out(rtc_base,mask_rst + mask_clk + mask_rd);
+;       rtc_bit_delay();
+;    end loop;
+;    return n;
+;  END;
+
+RTC_RD:
+	XOR	A			; set A=0 index counter of FOR loop
+	LD	C,$00			; set C=0 output of RTC_RD is passed in C
+	LD	B,$01			; B is mask value
+
+RTC_RD1:
+	PUSH	AF			; save accumulator as it is the index counter in FOR loop
+					; setup RTC with RST and RD high, SCLK low
+	LD	A,mask_rst + mask_rd
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY	; let it settle a while
+	;IN	A,(RTC)		; input from RTC latch
+	CALL	RTC_IN		; input from RTC latch
+	BIT	0,A			; is LSB a 0 or 1?
+	JP	Z,RTC_RD2		; if LSB is a 1, handle it below
+	LD	A,C
+	ADD	A,B
+	LD	C,A
+;	INC	C
+					; if LSB is a 0, skip it (C=C+0)
+RTC_RD2:
+	RLC	B			; move input bit out of LSB position to save it in C
+					; setup RTC with RST, SCLK high, and RD high
+	LD	A,mask_rst + mask_clk + mask_rd
+	;OUT	(RTC),A		; output to RTC latch
+	CALL	RTC_OUT
+	CALL	RTC_BIT_DELAY	; let it settle
+	POP	AF			; recover accumulator as it is the index counter in FOR loop
+	INC	A			; increment A in FOR loop (A=A+1)
+	CP	$08			; is A < $08 ?
+	JP	NZ,RTC_RD1		; No, do FOR loop again
+	RET				; Yes, end function and return.  Read RTC value is in C
+
+; function RTC_WRITE
+; input address in D
+; input value in E
+; uses A
+;
+; based on following algorithm:		
+;
+;  PROCEDURE rtc_write(address, value: int);
+;  BEGIN
+;    lock();
+;    rtc_reset_off();
+;    { Write command }
+;    rtc_wr(128 + shl(address and $3f,1));
+;    { Write data }
+;    rtc_wr(value and $ff);
+;    rtc_reset_on();
+;    unlock();
+;  END;
+
+RTC_WRITE:
+	DI				; disable interrupts during critical section
+	CALL	RTC_RESET_OFF	; turn off RTC reset
+	LD	A,D			; bring into A the address from D
+;	AND	$3F			; keep only bits 6 LSBs, discard 2 MSBs
+	AND	%00111111		; keep only bits 6 LSBs, discard 2 MSBs
+	RLC	A			; rotate address bits to the left
+;	ADD	A,$80			; set MSB to one for DS1302 COMMAND BYTE (WRITE)
+	ADD	A,%10000000		; set MSB to one for DS1302 COMMAND BYTE (WRITE)
+	LD	C,A			; RTC_WR expects write data (address) in reg C
+	CALL	RTC_WR		; write address to DS1302
+	LD	A,E			; start processing value
+	AND	$FF			; seems unnecessary, probably delete since all values are 8-bit
+	LD	C,A			; RTC_WR expects write data (value) in reg C
+	CALL	RTC_WR		; write address to DS1302
+	CALL	RTC_RESET_ON	; turn on RTC reset
+	EI
+	RET
+
+
+; function RTC_READ
+; input address in D
+; output value in C
+; uses A
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_read(address: int): int;
+;   var
+;     n : int;
+;  BEGIN
+;    lock();
+;    rtc_reset_off();
+;    { Write command }
+;    rtc_wr(128 + shl(address and $3f,1) + 1);
+;    { Read data }
+;    n := rtc_rd();
+;    rtc_reset_on();
+;    unlock();
+;    return n;
+;  END;
+
+RTC_READ:
+	DI				; disable interrupts during critical section
+	CALL	RTC_RESET_OFF	; turn off RTC reset
+	LD	A,D			; bring into A the address from D
+	AND	$3F			; keep only bits 6 LSBs, discard 2 MSBs
+	RLC	A			; rotate address bits to the left
+	ADD	A,$81			; set MSB to one for DS1302 COMMAND BYTE (READ)
+	LD	C,A			; RTC_WR expects write data (address) in reg C
+	CALL	RTC_WR		; write address to DS1302
+	CALL	RTC_RD		; read value from DS1302 (value is in reg C)
+	CALL	RTC_RESET_ON	; turn on RTC reset
+	EI
+	RET
+
+
+; function RTC_WR_PROTECT
+; input D (address) $07
+; input E (value) $80
+; uses A
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_wr_protect;
+;  BEGIN
+;    rtc_write(7,128);
+;  END;
+
+RTC_WR_PROTECT:
+;	LD	D,$07
+	LD	D,%00000111
+;	LD	E,$80
+	LD	E,%10000000
+	CALL	RTC_WRITE
+	RET
+
+
+; function RTC_WR_UNPROTECT
+; input D (address) $07
+; input E (value) $00
+; uses A
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_wr_unprotect;
+;  BEGIN
+;    rtc_write(7,0);
+;  END;
+
+RTC_WR_UNPROTECT:
+;	LD	D,$07
+	LD	D,%00000111
+;	LD	E,$00
+	LD	E,%00000000
+	CALL	RTC_WRITE
+	RET
+
+
+; function RTC_GET_TIME
+; input HL (memory address of buffer)
+; uses A,C,D,E
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_get_time(var buf: string);
+;   var
+;     n  : int;
+;  BEGIN
+;    lock();
+;    rtc_reset_off();
+;    { Write command, burst read }
+;    rtc_wr(255 - 64);
+;    { Read seconds }
+;    n := rtc_rd(); 0
+;    buf[16] := char(((n / 16) and $07)) + '0';
+;    buf[17] := char((n and $0f)) + '0';
+;    { Read minutes }
+;    n := rtc_rd(); 1
+;    buf[13] := char(((n / 16) and $07)) + '0';
+;    buf[14] := char((n and $0f)) + '0';
+;    buf[15] := ':';
+;    { Read hours }
+;    n := rtc_rd(); 2
+;    buf[10] := char(((n / 16) and $03)) + '0';
+;    buf[11] := char((n and $0f)) + '0';
+;    buf[12] := ':';
+;    { Read date }
+;    n := rtc_rd(); 3
+;    buf[7] := char(((n / 16) and $03)) + '0';
+;    buf[8] := char((n and $0f)) + '0';
+;    buf[9] := ' ';
+;    { Read month }
+;    n := rtc_rd(); 4
+;    buf[4] := char(((n / 16) and $03)) + '0';
+;    buf[5] := char((n and $0f)) + '0';
+;    buf[6] := '-';
+;    { Read day }
+;    n := rtc_rd(); 5
+;    {
+;    buf[4] := char(((n / 16) and $03)) + '0';
+;    buf[4] := char((n and $0f)) + '0';
+;    }
+;    { Read year }
+;    n := rtc_rd(); 6
+;    buf[1] := char(((n / 16) and $0f)) + '0';
+;    buf[2] := char((n and $0f)) + '0';
+;    buf[3] := '-';
+;    length(buf) := 17;
+;    rtc_reset_on();
+;    unlock();
+;  END rtc_get_time;
+
+RTC_GET_TIME:
+	DI				; disable interrupts during DS1302 read
+	CALL	RTC_RESET_OFF		; turn of RTC reset
+					;    { Write command, burst read }
+	LD	C,%10111111		; (255 - 64)
+	CALL	RTC_WR			; send COMMAND BYTE (BURST READ) to DS1302
+
+;    { Read seconds }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 16
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$07
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+15),A
+
+	; digit 17
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+16),A
+
+;    { Read minutes }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 13
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$07
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+12),A
+
+	; digit 14
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+13),A
+
+	; digit 15	
+	LD	A,':'
+	LD	(RTC_PRINT_BUFFER+14),A
+
+;    { Read hours }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 10
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$03
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+09),A
+
+	; digit 11
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+10),A
+
+	; digit 12
+	LD	A,':'
+	LD	(RTC_PRINT_BUFFER+11),A
+
+;    { Read date }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 07
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$03
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+06),A
+
+	; digit 08
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+07),A
+
+	; digit 09
+	LD	A,' '
+	LD	(RTC_PRINT_BUFFER+08),A
+
+;    { Read month }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 04
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$03
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+03),A
+
+	; digit 05
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+04),A
+
+	; digit 06
+	LD	A,'-'
+	LD	(RTC_PRINT_BUFFER+05),A
+
+;    { Read day }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 04
+;	LD	A,C			; put value output in Reg C into accumulator
+;	RLC	A
+;	RLC	A
+;	RLC	A
+;	RLC	A
+;	AND	$03
+;	ADD	A,'0'
+;	LD	(RTC_PRINT_BUFFER+03),A
+
+	; digit 04
+;	LD	A,C			; put value output in Reg C into accumulator
+;	AND	$0F
+;	ADD	A,'0'
+;	LD	(RTC_PRINT_BUFFER+03),A
+
+; add special code to put "DAY" value at end of string until better solution known
+
+	; digit 18
+	LD	A,'-'
+	LD	(RTC_PRINT_BUFFER+17),A
+
+	; digit 19
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+18),A
+
+	; digit 20
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+19),A
+
+;    { Read year }
+
+	CALL	RTC_RD			; read value from DS1302, value is in Reg C
+
+	; digit 01
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+00),A
+
+	; digit 02
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+01),A
+
+	; digit 03
+	LD	A,'-'
+	LD	(RTC_PRINT_BUFFER+02),A
+
+	CALL	RTC_RESET_ON		; turn RTC reset back on 
+	EI				; re-enable interrupts
+
+	RET				; Yes, end function and return
+
+
+; function RTC_SET_NOW
+; uses A, D, E
+;
+; based on following algorithm
+;
+;  { Set time to 96-02-18 19:43:00 }
+;  PROCEDURE rtc_set_now;
+;  BEGIN
+;    rtc_wr_unprotect();
+;    { Set seconds }
+;    rtc_write(0,0);
+;    { Set minutes }
+;    rtc_write(1,$43);
+;    { Set hours }
+;    rtc_write(2,$19);
+;    { Set date }
+;    rtc_write(3,$18);
+;    { Set month }
+;    rtc_write(4,$02);
+;    { Set day }
+;    rtc_write(5,$07);
+;    { Set year }
+;    rtc_write(6,$96);
+;    rtc_wr_protect();
+;  END;
+
+RTC_SET_NOW:
+; set time to 07-02-23 19:45:00-05 <-Friday
+	CALL RTC_WR_UNPROTECT
+; seconds
+	LD	D,$00
+	LD	A,(SECONDS)
+	LD	E,A
+	CALL RTC_WRITE
+
+; minutes
+	LD	D,$01
+	LD	A,(MINUTES)
+	LD	E,A
+	CALL RTC_WRITE
+
+; hours
+	LD	D,$02
+	LD	A,(HOURS)
+	LD	E,A
+	CALL RTC_WRITE
+
+; date
+	LD	D,$03
+	LD	A,(DATE)
+	LD	E,A
+	CALL RTC_WRITE
+
+; month
+	LD	D,$04
+	LD	A,(MONTH)
+	LD	E,A
+	CALL RTC_WRITE
+
+; day
+	LD	D,$05
+	LD	A,(DAY)
+	LD	E,A
+	CALL RTC_WRITE
+
+; year
+	LD	D,$06
+	LD	A,(YEAR)
+	LD	E,A
+	CALL RTC_WRITE
+
+	CALL RTC_WR_PROTECT
+	RET
+
+RTC_INIT_NOW:
+; set time to Current Time
+
+; year
+	LD	DE,RTC_TOP_LOOP1_INIT_YEAR
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(YEAR),A
+
+; month
+	LD	DE,RTC_TOP_LOOP1_INIT_MONTH
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(MONTH),A
+
+; date
+	LD	DE,RTC_TOP_LOOP1_INIT_DATE
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(DATE),A
+
+; hours
+	LD	DE,RTC_TOP_LOOP1_INIT_HOURS
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(HOURS),A
+
+; minutes
+	LD	DE,RTC_TOP_LOOP1_INIT_MINUTES
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(MINUTES),A
+
+; seconds
+	LD	DE,RTC_TOP_LOOP1_INIT_SECONDS
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(SECONDS),A
+
+; day
+	LD	DE,RTC_TOP_LOOP1_INIT_DAY
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	HEXIN
+	LD	(DAY),A
+
+	RET
+
+
+; function RTC_RESTART
+;
+; uses A, D, E,
+;
+; based on the following algorithm
+;
+;  { Restart clock, set seconds to 00 }
+;  PROCEDURE rtc_restart;
+;  BEGIN
+;    rtc_wr_unprotect();
+;    { Set seconds }
+;    rtc_write(0,0);
+;    rtc_wr_protect();
+;  END;
+
+RTC_RESTART:
+	CALL RTC_WR_UNPROTECT
+	LD	D,$00
+	LD	E,$00
+	CALL RTC_WRITE
+	CALL RTC_WR_PROTECT
+	RET
+
+
+; function RTC_CHARGE_ENABLE
+;
+; uses A, D, E
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_charge_enable;
+;  BEGIN
+;    rtc_wr_unprotect();
+;    { Enable trickle charger, 2kohm, 1 diode }
+;    rtc_write(8,$A5);
+;    rtc_wr_protect();
+;  END;
+;
+; Trickle Charge Current:
+;
+; Imax = (5.0V - (0.7 * Ndiode)) / R
+; (5.0 - (0.7 * 1)) / 2000 = .00215A = 2.15 milliamps
+; (5.0 - (0.7 * 1)) / 8000 = 0.0005375A = .537 milliamps
+;
+
+RTC_CHARGE_ENABLE
+	CALL	RTC_WR_UNPROTECT
+	LD	D,$08
+	LD	E,$A5
+	CALL	RTC_WRITE
+	CALL	RTC_WR_PROTECT
+	RET
+
+
+; function RTC_CHARGE_DISABLE
+;
+; uses A, D, E
+;
+; based on following algorithm
+;
+;  PROCEDURE rtc_charge_disable;
+;  BEGIN
+;    rtc_wr_unprotect();
+;    { Disable trickle charger}
+;    rtc_write(8,$00);
+;    rtc_wr_protect();
+;  END;
+
+RTC_CHARGE_DISABLE
+	CALL	RTC_WR_UNPROTECT
+	LD	D,$08
+	LD	E,$00
+	CALL	RTC_WRITE
+	CALL	RTC_WR_PROTECT
+	RET
+
+
+; function TEST_BIT_DELAY
+;
+; based on the following algorithm
+;
+;
+;  PROCEDURE test_bit_delay();
+;   var
+;     i,t0,t1 : int;
+;  BEGIN
+;    putln("Testing bit delay...");
+;    t0 := sys_time();
+;    for i := 0 while i < 1000 do inc(i) loop
+;      rtc_bit_delay();
+;    end loop;
+;    t1 := sys_time();
+;    putln(i," rtc_bit_delay calls took ",t1-t0," ms.");
+;  END;
+
+RTC_TEST_BIT_DELAY
+	LD	DE,TESTING_BIT_DELAY_MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	LD	C,01H			; CP/M console input call
+	CALL	0005H
+
+	; test should take approximately 43 seconds based on the following code analysis
+	; of Z80 T-states on a 4 MHz processor
+	; =(4+15*(7+255*(7+255*(17+144+4+10)+4+10)+10)+7)/4/1000000
+
+	LD	B,$0F
+PAUSE:
+	LD	C,$FF
+PAUSE1:
+	LD	A,$FF			; ADJUST THE TIME 13h IS FOR 4 MHZ
+PAUSE2:
+	CALL	RTC_BIT_DELAY		; CAUSE 36uS DELAY
+	DEC	A			; DEC COUNTER.
+	JP	NZ,PAUSE2		; JUMP TO PAUSE2 IF A <> 0.
+	DEC	C			; DEC COUNTER
+	JP	NZ,PAUSE1		; JUMP TO PAUSE1 IF C <> 0.
+	DJNZ	PAUSE			; JUMP TO PAUSE IF B <> 0.
+
+	LD	DE,TESTING_BIT_DELAY_OVER
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	RET
+
+
+; function RTC_HELP
+;
+; based on following algorithm
+;
+;  PROCEDURE help();
+;  BEGIN
+;    putln();
+;    putln("rtc: ",version);
+;    putln("rtc: Commands: (E)xit (T)ime st(A)rt (S)et (R)aw (L)oop (C)harge (N)ocharge (H)elp");
+;  END;
+
+RTC_HELP
+	LD	DE,RTC_HELP_MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	RET
+	
+; function RTC_INIT
+;
+; Determine RTC port based on hardware platform
+; and record it dynamically in code (see RTC_IN and RTC_OUT).
+;
+
+RTC_INIT:
+	CALL	IDBIO		; Id BIOS, 1=HBIOS, 2=UBIOS
+	DEC	A		; Test for HBIOS
+	JP	Z,HINIT		; Do HBIOS setup
+	DEC	A		; Test for UBIOS
+	JP	Z,UINIT		; Do UBIOS setup
+;
+	; Neither UNA nor RomWBW
+	LD	DE,BIOERR	; BIOS error message
+	LD	C,9		; BDOS string display function
+	CALL	BDOS		; Do it
+	JP	0		; Bail out!
+;
+HINIT:
+;
+	; Display RomWBW notification string
+	LD	DE,HBTAG	; BIOS notification string
+	LD	C,9		; BDOS string display function
+	CALL	BDOS		; Do it
+;
+	; Get platform id from RomWBW HBIOS
+	LD	B,0F1H		; HBIOS VER function 0xF1
+	LD	C,0		; Required reserved value
+	RST	08		; Do it, L := Platform ID
+	LD	A,L		; Move to A
+;
+	; Assign correct port to C
+	LD	C,PORT_SBC
+	LD	DE,PLT_SBC
+	CP	$01		; SBC
+	JP	Z,RTC_INIT2
+	CP	$02		; ZETA
+	JP	Z,RTC_INIT2
+	CP	$03		; ZETA 2
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_N8
+	LD	DE,PLT_N8
+	CP	$04		; N8
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_MK4
+	LD	DE,PLT_MK4
+	CP	$05		; Mark IV
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_RCZ80
+	LD	DE,PLT_RCZ80
+	CP	$07		; RCBus w/ Z80
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_RCZ180
+	LD	DE,PLT_RCZ180
+	CP	$08		; RCBus w/ Z180
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_EZZ80
+	LD	DE,PLT_EZZ80
+	CP	$09		; Easy Z80
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_SCZ180
+	LD	DE,PLT_SCZ180
+	CP	$0A		; SCZ180
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_DYNO
+	LD	DE,PLT_DYNO
+	CP	11		; DYNO
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_RCZ280
+	LD	DE,PLT_RCZ280
+	CP	12		; RCZ280
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_MBC
+	LD	DE,PLT_MBC
+	CP	13		; MBC
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_RPH
+	LD	DE,PLT_RPH
+	CP	14		; RHYOPHYRE
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_DUO
+	LD	DE,PLT_DUO
+	CP	17		; DUODYNE
+	JP	Z,RTC_INIT2
+;
+	LD	C,PORT_STDZ180
+	LD	DE,PLT_STDZ180
+	CP	21		; STD Z180
+	JP	Z,RTC_INIT2
+;
+
+; Unknown platform
+	LD	DE,PLTERR	; BIOS error message
+	LD	C,9		; BDOS string display function
+	CALL	BDOS		; Do it
+	JP	0		; Bail out!
+;
+UINIT:
+	;; Display UNA notification string
+	;LD	DE,UBTAG	; BIOS notification string
+	;LD	C,9		; BDOS string display function
+	;CALL	BDOS		; Do it
+;
+	; Notify UNA not supported at present
+	LD	DE,UBERR	; BIOS not support message
+	LD	C,9		; BDOS string display function
+	CALL	BDOS		; Do it
+	JP	0		; Bail out!
+	
+RTC_INIT2:
+	; Record port number in code routines
+	LD	A,C
+	LD	(INP),A
+	LD	(OUTP),A
+;
+	; Display platform
+	LD	C,9		; BDOS string display function
+	CALL	BDOS		; Do it
+	RET
+
+;
+; Identify active BIOS.  RomWBW HBIOS=1, UNA UBIOS=2, else 0
+;
+IDBIO:
+;
+	; Check for UNA (UBIOS)
+	LD	A,(0FFFDH)	; fixed location of UNA API vector
+	CP	0C3H		; jp instruction?
+	JR	NZ,IDBIO1	; if not, not UNA
+	LD	HL,(0FFFEH)	; get jp address
+	LD	A,(HL)		; get byte at target address
+	CP	0FDH		; first byte of UNA push ix instruction
+	JR	NZ,IDBIO1	; if not, not UNA
+	INC	HL		; point to next byte
+	LD	A,(HL)		; get next byte
+	CP	0E5H		; second byte of UNA push ix instruction
+	JR	NZ,IDBIO1	; if not, not UNA, check others
+	LD	A,2		; UNA BIOS id = 2
+	RET			; and done
+;
+IDBIO1:
+	; Check for RomWBW (HBIOS)
+	LD	HL,(0FFFEH)	; HL := HBIOS ident location
+	LD	A,'W'		; First byte of ident
+	CP	(HL)		; Compare
+	JR	NZ,IDBIO2	; Not HBIOS
+	INC	HL		; Next byte of ident
+	LD	A,~'W'		; Second byte of ident
+	CP	(HL)		; Compare
+	JR	NZ,IDBIO2	; Not HBIOS
+	LD	A,1		; HBIOS BIOS id = 1
+	RET			; and done
+;
+IDBIO2:
+	; No idea what this is
+	XOR	A		; Setup return value of 0
+	RET			; and done
+
+
+; function RTC_TOP_LOOP
+;
+; based on following algorithm
+;
+;  PROCEDURE toploop();
+;   var
+;     err,i,n,fd  : int;
+;  BEGIN
+;    putln();
+;    help();
+;    rtc_reset_on();
+;    hold(100);
+;    test_bit_delay();
+;    rtc_charge_disable();
+;    putln("rtc: trickle charger disabled.");
+;    loop
+;       put("rtc>");
+;       gets(line);
+;       if line = "exit" then
+;          putln("Bye.");
+;          exit(0);
+;       elsif line = "charge" then
+;          putln("Trickle charger enabled.");
+;          rtc_charge_enable();
+;       elsif line = "nocharge" then
+;          putln("Trickle charger disabled.");
+;          rtc_charge_disable();
+;       elsif line = "start" then
+;          rtc_restart();
+;          putln("Restarting RTC");
+;       elsif line = "t" then
+;          rtc_get_time(line);
+;          putln("Current time: ",line);
+;       elsif line = "raw" then
+;          putln();
+;          putln("Raw read loop, hit any key to stop...");
+;          while read(0,@n,1 + RD_NOWAIT) = 0 loop
+;             put(#13,"sec=",hexstr(rtc_read(0))^);
+;             put(" min=",hexstr(rtc_read(1))^);
+;             hold(500);
+;          end loop;
+;       elsif line = "loop" then
+;          putln();
+;          putln("Clock loop, hit any key to stop...");
+;          while read(0,@n,1 + RD_NOWAIT) = 0 loop
+;             rtc_get_time(line);
+;             put(#13,line);
+;             hold(200);
+;          end loop;
+;       elsif line = "set" then
+;          putln("Setting RTC time to 96-02-18 19:43:00");
+;          rtc_set_now();
+;       elsif (line = "help") or (line = "?") then
+;          help();
+;       elsif length(line) <> 0 then
+;          putln("You typed: """,line,"""");
+;       end;
+;    end loop;
+;  END toploop;
+;  Note:above code is not fully in sync with current menu code
+
+RTC_TOP_LOOP:
+	CALL	RTC_RESET_ON
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+	CALL	RTC_BIT_DELAY
+
+	LD	A,(FCB+1)		; If there a command line tail
+	CP	'/'			; get the command and feed it 
+	LD	A,(FCB+2)		; into the input stream
+	JR	Z,RTC_UCL		
+
+	LD	DE,CRLF_MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	CALL	RTC_HELP
+
+RTC_TOP_LOOP_1:
+	LD	DE,RTC_TOP_LOOP1_PROMPT
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	
+	LD	C,01H			; CP/M console input call
+	CALL	0005H
+RTC_UCL:
+	AND	%01011111		; handle lower case responses to menu
+
+	CP	'L'
+	JP	Z,RTC_TOP_LOOP_LOOP
+	
+	CP	'R'
+	JP	Z,RTC_TOP_LOOP_RAW
+	
+	CP	'G'
+	JP	Z,RTC_TOP_LOOP_GET
+
+	CP	'P'
+	JP	Z,RTC_TOP_LOOP_PUT
+	
+	CP	'E'
+;	JP	Z,RTC_TOP_LOOP_EXIT
+	RET	Z
+	
+	CP	'H'
+	JP	Z,RTC_TOP_LOOP_HELP
+	
+	CP	'D'
+	JP	Z,RTC_TOP_LOOP_DELAY	
+
+	CP	'B'
+	JP	Z,RTC_TOP_LOOP_BOOT	
+
+	CP	'W'
+	JP	Z,RTC_TOP_LOOP_WARMSTART
+
+	CP	'C'
+	JP	Z,RTC_TOP_LOOP_CHARGE
+
+	CP	'N'
+	JP	Z,RTC_TOP_LOOP_NOCHARGE
+
+	CP	'A'
+	JP	Z,RTC_TOP_LOOP_START
+
+	CP	'S'
+	JP	Z,RTC_TOP_LOOP_SET
+
+	CP	'I'
+	JP	Z,RTC_TOP_LOOP_INIT
+	
+	CP	'T'
+	JP	Z,RTC_TOP_LOOP_TIME
+
+	LD	DE,CRLF_MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	
+	JR	RTC_TOP_LOOP_1
+
+;RTC_TOP_LOOP_EXIT:
+;	RET
+
+RTC_TOP_LOOP_HELP:
+	CALL	RTC_HELP
+	JP	RTC_TOP_LOOP_1
+	
+RTC_TOP_LOOP_DELAY:
+	CALL	RTC_TEST_BIT_DELAY
+	JP	RTC_TOP_LOOP_1
+	
+RTC_TOP_LOOP_BOOT:
+	LD	DE,BOOTMSG		; BOOT message
+	LD	C,9			; BDOS string display function
+	CALL	BDOS			; Do it
+	; WAIT FOR MESSAGE TO BE DISPLAYED
+	LD	HL,10000
+DELAY_LOOP:				; LOOP IS 26TS
+	DEC	HL			; 6TS
+	LD	A,H			; 4TS
+	OR	L			; 4TS
+	JR	NZ,DELAY_LOOP		; 12TS
+	; RESTART SYSTEM FROM ROM BANK 0, ADDRESS $0000
+	LD	B,BF_SYSRESET		; SYSTEM RESTART
+	LD	C,BF_SYSRES_COLD	; COLD START
+	CALL	$FFF0			; CALL HBIOS
+	
+
+RTC_TOP_LOOP_WARMSTART:
+	LD	B,BF_SYSRESET		; SYSTEM RESTART
+	LD	C,BF_SYSRES_WARM	; WARM START
+	CALL	$FFF0			; CALL HBIOS
+
+RTC_TOP_LOOP_CHARGE:
+	LD	DE,RTC_TOP_LOOP1_CHARGE
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_CHARGE_ENABLE
+	LD	A,(FCB+1)		; If we came from the
+	CP	'/'			; command line
+	RET	Z			; exit back to CP/M
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_NOCHARGE:
+	LD	DE,RTC_TOP_LOOP1_NOCHARGE
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_CHARGE_DISABLE
+	LD	A,(FCB+1)		; If we came from the
+	CP	'/'			; command line
+	RET	Z			; exit back to CP/M
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_START:
+	LD	DE,RTC_TOP_LOOP1_START
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_RESTART
+	JP	RTC_TOP_LOOP_1
+	
+RTC_TOP_LOOP_SET:
+	LD	DE,RTC_TOP_LOOP1_SET
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_SET_NOW
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_INIT:
+	LD	DE,RTC_TOP_LOOP1_INIT
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_INIT_NOW
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_TIME:
+	LD	DE,RTC_TOP_LOOP1_TIME
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	CALL	RTC_GET_TIME
+	LD	DE,RTC_PRINT_BUFFER
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+	LD	A,(FCB+1)		; If we came from the
+	CP	'/'			; command line
+	RET	Z			; exit back to CP/M
+	JP	RTC_TOP_LOOP_1
+	
+RTC_TOP_LOOP_RAW:
+	LD	DE,RTC_TOP_LOOP1_RAW
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+RTC_TOP_LOOP_RAW1:
+
+;	{ Read seconds }
+	LD	D,$00			; seconds register in DS1302
+	CALL	RTC_READ		; read value from DS1302, value is in Reg C
+
+	; digit 16
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$07
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+15),A
+
+	; digit 17
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+16),A
+
+;	{ Read minutes }
+
+	LD	D,$01			; minutes register in DS1302
+	CALL	RTC_READ		; read value from DS1302, value is in Reg C
+
+	; digit 13
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$07
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+12),A
+
+	; digit 14
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	ADD	A,'0'
+	LD	(RTC_PRINT_BUFFER+13),A
+
+	; digit 15
+	LD	A,':'
+	LD	(RTC_PRINT_BUFFER+14),A
+
+	; digits 1-12 and 18-20 are spaces
+	LD	A,' '			; space
+	LD	(RTC_PRINT_BUFFER+19),A
+	LD	(RTC_PRINT_BUFFER+18),A
+	LD	(RTC_PRINT_BUFFER+17),A
+	LD	(RTC_PRINT_BUFFER+11),A
+	LD	(RTC_PRINT_BUFFER+10),A
+	LD	(RTC_PRINT_BUFFER+09),A
+	LD	(RTC_PRINT_BUFFER+08),A
+	LD	(RTC_PRINT_BUFFER+07),A
+	LD	(RTC_PRINT_BUFFER+06),A
+	LD	(RTC_PRINT_BUFFER+05),A
+	LD	(RTC_PRINT_BUFFER+04),A
+	LD	(RTC_PRINT_BUFFER+03),A
+	LD	(RTC_PRINT_BUFFER+02),A
+	LD	(RTC_PRINT_BUFFER+01),A
+	LD	(RTC_PRINT_BUFFER+00),A
+
+	LD	DE,RTC_PRINT_BUFFER
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	LD	C,01H			; CP/M console input call
+	CALL	0005H
+
+	CP	' '			; space
+	JP	Z,RTC_TOP_LOOP_RAW1
+
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_LOOP:
+	LD	DE,RTC_TOP_LOOP1_LOOP
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+RTC_TOP_LOOP_LOOP1:
+	CALL	RTC_GET_TIME
+
+	LD	DE,RTC_PRINT_BUFFER
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	LD	C,01H			; CP/M console input call
+	CALL	0005H
+
+	CP	' '
+	JP	Z,RTC_TOP_LOOP_LOOP1	
+
+	JP	RTC_TOP_LOOP_1
+
+RTC_TOP_LOOP_PUT:
+	LD	A,$01			; set PUT as true
+	LD	(GET_PUT),A
+RTC_TOP_LOOP_GET:
+	LD	DE,RTC_TOP_LOOP1_GET
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	CALL	HEXIN			; read NVRAM address
+	LD	(PUT_ADR),A		; store for possible PUT later
+
+;	{ Read NVRAM address }
+	LD	D,A			; seconds register in DS1302
+	CALL	RTC_READ		; read value from DS1302, value is in Reg C
+
+	; first digit
+	LD	A,C			; put value output in Reg C into accumulator
+	RLC	A
+	RLC	A
+	RLC	A
+	RLC	A
+	AND	$0F
+	CP	0AH			;TEST FOR NUMERIC & convert to ASCII
+	JR	C,NUM1			;if not ALPHA, its numeric and skip
+	ADD	A,$07
+
+NUM1:	ADD	A,'0'
+	LD	(RTC_GET_BUFFER),A
+
+	; second digit
+	LD	A,C			; put value output in Reg C into accumulator
+	AND	$0F
+	CP	0AH			;TEST FOR NUMERIC & convert to ASCII
+	JR	C,NUM2			;if not ALPHA, its numeric and skip
+	ADD	A,$07	
+
+NUM2:	ADD	A,'0'
+	LD	(RTC_GET_BUFFER+1),A
+
+	LD	DE,CRLF_MSG
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	LD	DE,RTC_GET_BUFFER
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+	LD	A,(GET_PUT)		; check if GET or PUT mode
+	CP	$00
+	JP	Z,RTC_GET_PUT_EXIT	; if GET mode, exit
+
+	LD	DE,RTC_TOP_LOOP1_PUT
+	LD	C,09H			; CP/M write string to console call
+	CALL	0005H
+
+;	{ Write NVRAM address }
+
+	CALL	RTC_WR_UNPROTECT
+
+	CALL	HEXIN			; read NVRAM address
+	LD	E,A			; new data for NVRAM register in DS1302
+	LD	A,(PUT_ADR)
+	LD	D,A			; load address from before
+
+	CALL	RTC_WRITE		; read value from DS1302, value is in Reg C
+
+	CALL	RTC_WR_PROTECT
+
+RTC_GET_PUT_EXIT:
+	LD	A,$00			; reset GET mode
+	LD	(GET_PUT),A
+	JP	RTC_TOP_LOOP_1
+
+;
+; Text Strings
+;
+
+MSG:
+	.TEXT	"Start RTC Program"
+CRLF_MSG:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+TESTING_BIT_DELAY_MSG:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Testing bit delay.  Successful test is ~43 sec."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Start clock and press space bar."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+TESTING_BIT_DELAY_OVER:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Test complete.  Stop clock."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_HELP_MSG:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"RTC: Version 1.9"
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Commands: E)xit T)ime st(A)rt S)et R)aw L)oop C)harge N)ocharge D)elay I)nit G)et P)ut B)oot W)arm-start H)elp"
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_PROMPT:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"RTC>"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_CHARGE:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Trickle charger enabled."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_NOCHARGE:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Trickle charger disabled."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_START:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Restart RTC."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_TIME:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Current time: "
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_RAW:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Raw read Loop.  Press SPACE BAR for next."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_LOOP:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Clock Loop.  Press SPACE BAR for next."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_SET:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Set RTC time."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Init date/time."
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_GET:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"Get NVRAM addr:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_PUT:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"NVRAM data:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_SECONDS:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"SECONDS:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_MINUTES:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"MINUTES:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_HOURS:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"HOURS:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_DATE:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"DATE:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_MONTH:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"MONTH:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_DAY:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"DAY:"
+	.DB	"$"			; Line terminator
+
+RTC_TOP_LOOP1_INIT_YEAR:
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.TEXT	"YEAR:"
+	.DB	"$"			; Line terminator
+
+RTC_PRINT_BUFFER:
+	.FILL	20,0			; Buffer for formatted date & time to print
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; line terminator
+
+RTC_GET_BUFFER:
+	.FILL	2,0			; Buffer for formatted NVRAM data to print
+	.DB	0Ah, 0Dh		; line feed and carriage return
+	.DB	"$"			; line terminator
+
+BIOERR		.TEXT	"\r\nUnknown BIOS, aborting...\r\n$"
+PLTERR		.TEXT	"\r\n\r\nUnknown/unsupported hardware platform, aborting...\r\n$"
+UBERR		.TEXT	"\r\nUNA UBIOS is not currently supported, aborting...\r\n$"
+HBTAG		.TEXT	"RomWBW HBIOS$"
+UBTAG		.TEXT	"UNA UBIOS"
+BOOTMSG		.TEXT	"\r\n\r\nRebooting...$"
+PLT_SBC		.TEXT	", SBC/Zeta RTC Latch Port 0x70\r\n$"
+PLT_N8		.TEXT	", N8 RTC Latch Port 0x88\r\n$"
+PLT_MK4		.TEXT	", Mark 4 RTC Latch Port 0x8A\r\n$"
+PLT_RCZ80	.TEXT	", RCBus Z80 RTC Module Latch Port 0xC0\r\n$"
+PLT_RCZ180	.TEXT	", RCBus Z180 RTC Module Latch Port 0x0C\r\n$"
+PLT_EZZ80	.TEXT	", Easy Z80 RTC Module Latch Port 0xC0\r\n$"
+PLT_SCZ180	.TEXT	", SC Z180 RTC Module Latch Port 0x0C\r\n$"
+PLT_DYNO	.TEXT	", DYNO RTC Module Latch Port 0x0C\r\n$"
+PLT_RCZ280	.TEXT	", RCBus Z280 RTC Module Latch Port 0xC0\r\n$"
+PLT_MBC		.TEXT	", MBC RTC Latch Port 0x70\r\n$"
+PLT_RPH		.TEXT	", RHYOPHYRE RTC Latch Port 0x84\r\n$"
+PLT_DUO		.TEXT	", DUODYNE RTC Latch Port 0x70\r\n$"
+PLT_STDZ180 .TEXT ", STD Z180 RTC Module latch port 0x84\r\n$"
+
+;
+; Generic FOR-NEXT loop algorithm
+;
+;	LD	A,$00			; set A=0 index counter of FOR loop
+;FOR_LOOP:
+;	PUSH	AF			; save accumulator as it is the index counter in FOR loop
+;	{ contents of FOR loop here }	; setup RTC with RST and RD high, SCLK low
+;	POP	AF			; recover accumulator as it is the index counter in FOR loop
+;	INC	A			; increment A in FOR loop (A=A+1)
+;	CP	$08			; is A < $08 ?
+;	JP	NZ,FOR_LOOP		; No, do FOR loop again
+;	RET				; Yes, end function and return.  Read RTC value is in C
+
+YEAR	.DB	$18
+MONTH	.DB	$11
+DATE	.DB	$08
+HOURS	.DB	$00
+MINUTES	.DB	$00
+SECONDS	.DB	$00
+DAY	.DB	$05
+GET_PUT	.DB	$00
+
+PUT_ADR	.DB	0
+
+	.END
+
diff --git a/Source/Apps/rtchb.asm b/Source/Apps/rtc/rtchb.asm
similarity index 100%
rename from Source/Apps/rtchb.asm
rename to Source/Apps/rtc/rtchb.asm
diff --git a/Source/Apps/startup.asm b/Source/Apps/startup/startup.asm
similarity index 100%
rename from Source/Apps/startup.asm
rename to Source/Apps/startup/startup.asm
diff --git a/Source/Apps/syscopy/Build.cmd b/Source/Apps/syscopy/Build.cmd
new file mode 100644
index 00000000..ccf37eb9
--- /dev/null
+++ b/Source/Apps/syscopy/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF syscopy.asm syscopy.com syscopy.lst || exit /b
+
+copy /Y syscopy.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/syscopy/Clean.cmd b/Source/Apps/syscopy/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/syscopy/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/syscopy/Makefile b/Source/Apps/syscopy/Makefile
new file mode 100644
index 00000000..c8e41bdb
--- /dev/null
+++ b/Source/Apps/syscopy/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = syscopy.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/syscopy.asm b/Source/Apps/syscopy/syscopy.asm
similarity index 100%
rename from Source/Apps/syscopy.asm
rename to Source/Apps/syscopy/syscopy.asm
diff --git a/Source/Apps/sysgen/Build.cmd b/Source/Apps/sysgen/Build.cmd
new file mode 100644
index 00000000..9155303b
--- /dev/null
+++ b/Source/Apps/sysgen/Build.cmd
@@ -0,0 +1,13 @@
+@echo off
+setlocal
+
+set TOOLS=..\..\..\Tools
+set PATH=%TOOLS%\tasm32;%TOOLS%\zxcc;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+set CPMDIR80=%TOOLS%/cpm/
+
+:: tasm -t80 -g3 -fFF sysgen.asm sysgen.com sysgen.lst || exit /b
+
+zxcc Z80ASM -SYSGEN/F || exit /b
+
+copy /Y sysgen.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/sysgen/Clean.cmd b/Source/Apps/sysgen/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/sysgen/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/sysgen/Makefile b/Source/Apps/sysgen/Makefile
new file mode 100644
index 00000000..01e3f2d9
--- /dev/null
+++ b/Source/Apps/sysgen/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = sysgen.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/sysgen.z80 b/Source/Apps/sysgen/sysgen.z80
similarity index 100%
rename from Source/Apps/sysgen.z80
rename to Source/Apps/sysgen/sysgen.z80
diff --git a/Source/Apps/talk/Build.cmd b/Source/Apps/talk/Build.cmd
new file mode 100644
index 00000000..ac9c6e90
--- /dev/null
+++ b/Source/Apps/talk/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF talk.asm talk.com talk.lst || exit /b
+
+copy /Y talk.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/talk/Clean.cmd b/Source/Apps/talk/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/talk/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/talk/Makefile b/Source/Apps/talk/Makefile
new file mode 100644
index 00000000..67a1d261
--- /dev/null
+++ b/Source/Apps/talk/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = talk.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/talk.asm b/Source/Apps/talk/talk.asm
similarity index 100%
rename from Source/Apps/talk.asm
rename to Source/Apps/talk/talk.asm
diff --git a/Source/Apps/timer.asm b/Source/Apps/timer.asm
deleted file mode 100644
index b220db1a..00000000
--- a/Source/Apps/timer.asm
+++ /dev/null
@@ -1,506 +0,0 @@
-;===============================================================================
-; TIMER - Display system timer value
-;
-;===============================================================================
-;
-;	Author:  Wayne Warthen (wwarthen@gmail.com)
-;_______________________________________________________________________________
-;
-; Usage:
-;   TIMER [/C] [/?]
-;     ex: TIMER		(display current timer value)
-;         TIMER /?	(display version and usage)
-;         TIMER /C	(display timer value continuously)
-;
-; Operation:
-;   Reads and displays system timer value.
-;_______________________________________________________________________________
-;
-; Change Log:
-;   2018-01-14 [WBW] Initial release
-;   2018-01-17 [WBW] Add HBIOS check
-;   2019-11-08 [WBW] Add seconds support
-;_______________________________________________________________________________
-;
-; ToDo:
-;_______________________________________________________________________________
-;
-#include "../ver.inc"
-;
-;===============================================================================
-; Definitions
-;===============================================================================
-;
-stksiz	.equ	$40		; Working stack size
-;
-restart	.equ	$0000		; CP/M restart vector
-bdos	.equ	$0005		; BDOS invocation vector
-;
-ident	.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
-;
-bf_sysver	.equ	$F1	; BIOS: VER function
-bf_sysget	.equ	$F8	; HBIOS: SYSGET function
-bf_sysset	.equ	$F9	; HBIOS: SYSGET function
-bf_sysgettimer	.equ	$D0	; TIMER subfunction
-bf_syssettimer	.equ	$D0	; TIMER subfunction
-bf_sysgetsecs	.equ	$D1	; SECONDS subfunction
-bf_syssetsecs	.equ	$D1	; SECONDS subfunction
-;
-;===============================================================================
-; Code Section
-;===============================================================================
-;
-	.org	$100
-;
-	; setup stack (save old value)
-	ld	(stksav),sp	; save stack
-	ld	sp,stack	; set new stack
-;
-	; initialization
-	call	init		; initialize
-	jr	nz,exit		; abort if init fails
-;
-	; process
-	call 	process		; do main processing
-	jr	nz,exit		; abort on error
-;
-exit:	; clean up and return to command processor
-	call	crlf		; formatting
-	ld	sp,(stksav)	; restore stack
-	;jp	restart		; return to CP/M via restart
-	ret			; return to CP/M w/o restart
-;
-; Initialization
-;
-init:
-	call	crlf		; formatting
-	ld	de,msgban	; point to version message part 1
-	call	prtstr		; print it
-;
-	call	idbio		; identify active BIOS
-	cp	1		; check for HBIOS
-	jp	nz,errbio	; handle BIOS error
-;
-	ld	a,rmj << 4 | rmn	; expected HBIOS ver
-	cp	d		; compare with result above
-	jp	nz,errbio	; handle BIOS error
-;
-initx
-	; initialization complete
-	xor	a		; signal success
-	ret			; return
-;
-; Process
-;
-process:
-	; look for start of parms
-	ld	hl,$81		; point to start of parm area (past len byte)
-;
-process00:
-	call	nonblank	; skip to next non-blank char
-	jp	z,process0	; no more parms, go to display
-;
-	; check for option, introduced by a "/"
-	cp	'/'		; start of options?
-	jp	nz,usage	; yes, handle option
-	call	option		; do option processing
-	ret	nz		; done if non-zero return
-	jr	process00	; continue looking for options
-;
-process0:
-;
-	; Test of API function to set seconds value
-	;ld	b,bf_sysset	; HBIOS SYSGET function
-	;ld	c,bf_syssetsecs	; SECONDS subfunction
-	;ld	de,0		; set seconds value
-	;ld	hl,1000		; ... to 1000
-	;rst	08		; call HBIOS, DE:HL := seconds value
-;
-	; get and print seconds value
-	call	crlf2		; formatting
-;
-process1:
-	ld	b,bf_sysget	; HBIOS SYSGET function
-	ld	c,bf_sysgettimer	; TIMER subfunction
-	rst	08		; call HBIOS, DE:HL := timer value
-	
-	ld	a,(first)
-	or	a
-	ld	a,0
-	ld	(first),a
-	jr	nz,process1a
-	
-	; test for new value
-	ld	a,(last)	; last LSB value to A
-	cp	l		; compare to current LSB
-	jr	z,process2	; if equal, bypass display
-
-process1a:	
-	; save and print new value
-	ld	a,l		; new LSB value to A
-	ld	(last),a	; save as last value
-	call	prtcr		; back to start of line
-	;call	nz,prthex32	; display it
-	call	prthex32	; display it
-	ld	de,strtick	; tag
-	call	prtstr		; display it
-
-	; get and print seconds value
-	ld	b,bf_sysget	; HBIOS SYSGET function
-	ld	c,bf_sysgetsecs	; SECONDS subfunction
-	rst	08		; call HBIOS, DE:HL := seconds value
-	call	prthex32	; display it
-	ld	a,'.'		; fraction separator
-	call	prtchr		; print it
-	ld	a,c		; get fractional component
-	call	prthex		; print it
-	ld	de,strsec	; tag
-	call	prtstr		; display it
-;
-process2:
-	ld	a,(cont)	; continuous display?
-	or	a		; test for true/false
-	jr	z,process3	; if false, get out
-;
-	ld	c,6		; BDOS: direct console I/O
-	ld	e,$FF		; input char
-	call	bdos		; call BDOS, A := char
-	or	a		; test for zero
-	jr	z,process1	; loop until char pressed
-;
-process3:
-	xor	a		; signal success
-	ret
-;
-; Handle special options
-;
-option:
-;
-	inc	hl		; next char
-	ld	a,(hl)		; get it
-	or	a		; zero terminator?
-	ret	z		; done if so
-	cp	' '		; blank?
-	ret	z		; done if so
-	cp	'?'		; is it a '?'?
-	jp	z,usage		; yes, display usage
-	cp	'C'		; is it a 'C', continuous?
-	jp	z,setcont	; yes, set continuous display
-	jp	errprm		; anything else is an error
-;
-usage:
-;
-	jp	erruse		; display usage and get out
-;
-setcont:
-;
-	or	$FF		; set A to true
-	ld	(cont),a	; and set continuous flag
-	jr	option		; check for more option letters
-;
-; Identify active BIOS.  RomWBW HBIOS=1, UNA UBIOS=2, else 0
-;
-idbio:
-;
-	; Check for UNA (UBIOS)
-	ld	a,($FFFD)	; fixed location of UNA API vector
-	cp	$C3		; jp instruction?
-	jr	nz,idbio1	; if not, not UNA
-	ld	hl,($FFFE)	; get jp address
-	ld	a,(hl)		; get byte at target address
-	cp	$FD		; first byte of UNA push ix instruction
-	jr	nz,idbio1	; if not, not UNA
-	inc	hl		; point to next byte
-	ld	a,(hl)		; get next byte
-	cp	$E5		; second byte of UNA push ix instruction
-	jr	nz,idbio1	; if not, not UNA, check others
-;
-	ld	bc,$04FA	; UNA: get BIOS date and version
-	rst	08		; DE := ver, HL := date
-;
-	ld	a,2		; UNA BIOS id = 2
-	ret			; and done
-;
-idbio1:
-	; Check for RomWBW (HBIOS)
-	ld	hl,($FFFE)	; HL := HBIOS ident location
-	ld	a,'W'		; First byte of ident
-	cp	(hl)		; Compare
-	jr	nz,idbio2	; Not HBIOS
-	inc	hl		; Next byte of ident
-	ld	a,~'W'		; Second byte of ident
-	cp	(hl)		; Compare
-	jr	nz,idbio2	; Not HBIOS
-;
-	ld	b,bf_sysver	; HBIOS: VER function
-	ld	c,0		; required reserved value
-	rst	08		; DE := version, L := platform id
-;	
-	ld	a,1		; HBIOS BIOS id = 1
-	ret			; and done
-;
-idbio2:
-	; No idea what this is
-	xor	a		; Setup return value of 0
-	ret			; and done
-;
-; Print character in A without destroying any registers
-;
-prtchr:
-	push	bc		; save registers
-	push	de
-	push	hl
-	ld	e,a		; character to print in E
-	ld	c,$02		; BDOS function to output a character
-	call	bdos		; do it
-	pop	hl		; restore registers
-	pop	de
-	pop	bc
-	ret
-;
-prtdot:
-;
-	; shortcut to print a dot preserving all regs
-	push	af		; save af
-	ld	a,'.'		; load dot char
-	call	prtchr		; print it
-	pop	af		; restore af
-	ret			; done
-;
-prtcr:
-;
-	; shortcut to print a dot preserving all regs
-	push	af		; save af
-	ld	a,13		; load CR value
-	call	prtchr		; print it
-	pop	af		; restore af
-	ret			; done
-;
-; Print a zero terminated string at (DE) without destroying any registers
-;
-prtstr:
-	push	de
-;
-prtstr1:
-	ld	a,(de)		; get next char
-	or	a
-	jr	z,prtstr2
-	call	prtchr
-	inc	de
-	jr	prtstr1
-;
-prtstr2:
-	pop	de		; restore registers
-	ret	
-;
-; Print the value in A in hex without destroying any registers
-;
-prthex:
-	push	af		; save AF
-	push	de		; save DE
-	call	hexascii	; convert value in A to hex chars in DE
-	ld	a,d		; get the high order hex char
-	call	prtchr		; print it
-	ld	a,e		; get the low order hex char
-	call	prtchr		; print it
-	pop	de		; restore DE
-	pop	af		; restore AF
-	ret			; done
-;
-; print the hex word value in bc
-;
-prthexword:
-	push	af
-	ld	a,b
-	call	prthex
-	ld	a,c
-	call	prthex 
-	pop	af
-	ret
-;
-; print the hex dword value in de:hl
-;
-prthex32:
-	push	bc
-	push	de
-	pop	bc
-	call	prthexword
-	push	hl
-	pop	bc
-	call	prthexword
-	pop	bc
-	ret
-;
-; Convert binary value in A to ascii hex characters in DE
-;
-hexascii:
-	ld	d,a		; save A in D
-	call	hexconv		; convert low nibble of A to hex
-	ld	e,a		; save it in E
-	ld	a,d		; get original value back
-	rlca			; rotate high order nibble to low bits
-	rlca
-	rlca
-	rlca
-	call	hexconv		; convert nibble
-	ld	d,a		; save it in D
-	ret			; done
-;
-; Convert low nibble of A to ascii hex
-;
-hexconv:
-	and	$0F	     	; low nibble only
-	add	a,$90
-	daa	
-	adc	a,$40
-	daa	
-	ret
-;
-; Print value of A or HL in decimal with leading zero suppression
-; Use prtdecb for A or prtdecw for HL
-;
-prtdecb:
-	push	hl
-	ld	h,0
-	ld	l,a
-	call	prtdecw		; print it
-	pop	hl
-	ret
-;
-prtdecw:
-	push	af
-	push	bc
-	push	de
-	push	hl
-	call	prtdec0
-	pop	hl
-	pop	de
-	pop	bc
-	pop	af
-	ret
-;
-prtdec0:
-	ld	e,'0'
-	ld	bc,-10000
-	call	prtdec1
-	ld	bc,-1000
-	call	prtdec1
-	ld	bc,-100
-	call	prtdec1
-	ld	c,-10
-	call	prtdec1
-	ld	e,0
-	ld	c,-1
-prtdec1:
-	ld	a,'0' - 1
-prtdec2:
-	inc	a
-	add	hl,bc
-	jr	c,prtdec2
-	sbc	hl,bc
-	cp	e
-	ret	z
-	ld	e,0
-	call	prtchr
-	ret
-;
-; Start a new line
-;
-crlf2:
-	call	crlf		; two of them
-crlf:
-	push	af		; preserve AF
-	ld	a,13		; <CR>
-	call	prtchr		; print it
-	ld	a,10		; <LF>
-	call	prtchr		; print it
-	pop	af		; restore AF
-	ret
-;
-; Get the next non-blank character from (HL).
-;
-nonblank:
-	ld	a,(hl)		; load next character
-	or	a		; string ends with a null
-	ret	z		; if null, return pointing to null
-	cp	' '		; check for blank
-	ret	nz		; return if not blank
-	inc	hl		; if blank, increment character pointer
-	jr	nonblank	; and loop
-;
-; Convert character in A to uppercase
-;
-ucase:
-	cp	'a'		; if below 'a'
-	ret	c		; ... do nothing and return
-	cp	'z' + 1		; if above 'z'
-	ret	nc		; ... do nothing and return
-	res	5,a		; clear bit 5 to make lower case -> upper case
-	ret			; and return
-;
-; Add the value in A to HL (HL := HL + A)
-;
-addhl:
-	add	a,l		; A := A + L
-	ld	l,a		; Put result back in L
-	ret	nc		; if no carry, we are done
-	inc	h		; if carry, increment H
-	ret			; and return
-;
-; Jump indirect to address in HL
-;
-jphl:
-	jp	(hl)
-;
-; Errors
-;
-erruse:	; command usage error (syntax)
-	ld	de,msguse
-	jr	err
-;
-errprm:	; command parameter error (syntax)
-	ld	de,msgprm
-	jr	err
-;
-errbio:	; invalid BIOS or version
-	ld	de,msgbio
-	jr	err
-;
-err:	; print error string and return error signal
-	call	crlf2		; print newline
-;
-err1:	; without the leading crlf
-	call	prtstr		; print error string
-;
-err2:	; without the string
-;	call	crlf		; print newline
-	or	$FF		; signal error
-	ret			; done
-;
-;===============================================================================
-; Storage Section
-;===============================================================================
-;
-last	.db	0		; last LSB of timer value
-cont	.db	0		; non-zero indicates continuous display
-first	.db	$FF		; first pass flag (true at start)
-;
-stksav	.dw	0		; stack pointer saved at start
-	.fill	stksiz,0	; stack
-stack	.equ	$		; stack top
-;
-; Messages
-;
-msgban	.db	"TIMER v1.1, 10-Nov-2019",13,10
-	.db	"Copyright (C) 2019, Wayne Warthen, GNU GPL v3",0
-msguse	.db	"Usage: TIMER [/C] [/?]",13,10
-	.db	"  ex. TIMER           (display current timer value)",13,10
-	.db	"      TIMER /?        (display version and usage)",13,10
-	.db	"      TIMER /C        (display timer value continuously)",0
-msgprm	.db	"Parameter error (TIMER /? for usage)",0
-msgbio	.db	"Incompatible BIOS or version, "
-	.db	"HBIOS v", '0' + rmj, ".", '0' + rmn, " required",0
-strtick	.db	" Ticks, ",0
-strsec	.db	" Seconds",0
-;
-	.end
diff --git a/Source/Apps/timer/Build.cmd b/Source/Apps/timer/Build.cmd
new file mode 100644
index 00000000..76fc1789
--- /dev/null
+++ b/Source/Apps/timer/Build.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF timer.asm timer.com timer.lst || exit /b
+
+copy /Y timer.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/Apps/timer/Clean.cmd b/Source/Apps/timer/Clean.cmd
new file mode 100644
index 00000000..9ecb428f
--- /dev/null
+++ b/Source/Apps/timer/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/Apps/timer/Makefile b/Source/Apps/timer/Makefile
new file mode 100644
index 00000000..055fa6be
--- /dev/null
+++ b/Source/Apps/timer/Makefile
@@ -0,0 +1,7 @@
+OBJECTS = timer.com
+DEST = ../../../Binary/Apps
+TOOLS =../../../Tools
+
+USETASM=1
+
+include $(TOOLS)/Makefile.inc
\ No newline at end of file
diff --git a/Source/Apps/timer/timer.asm b/Source/Apps/timer/timer.asm
new file mode 100644
index 00000000..ae5d67f8
--- /dev/null
+++ b/Source/Apps/timer/timer.asm
@@ -0,0 +1,805 @@
+;===============================================================================
+; TIMER - Display system timer value
+; Version 1.31 24-July-2024
+;===============================================================================
+;
+;	Author:  Wayne Warthen (wwarthen@gmail.com)
+;	Updated: MartinR (July 2024) - A user of uppercase mnemonics
+;_______________________________________________________________________________
+;
+; Usage:
+;   TIMER [/C] [/?]
+;     ex: TIMER		(display current timer value)
+;         TIMER /?	(display version and usage)
+;         TIMER /C	(display timer value continuously)
+;
+; Operation:
+;   Reads and displays system timer value.
+;
+; This code will only execute on a Z80 CPU (or derivitive)
+;
+; This source code assembles with TASM V3.2 under Windows-11 using the
+; following command line:
+;	tasm -80 -g3 -l TIMER.ASM TIMER.COM
+;	ie: Z80 CPU; output format 'binary' named .COM (rather than .OBJ)
+;	and includes a symbol table as part of the listing file.
+;_______________________________________________________________________________
+;
+; Change Log:
+;   2018-01-14 [WBW] Initial release
+;   2018-01-17 [WBW] Add HBIOS check
+;   2019-11-08 [WBW] Add seconds support
+;   2024-06-30 [MR ] Display values in decimal rather than hexadecimal
+;   2024-07-24 [MR ] Also display value in Hours-Mins-Secs format
+;_______________________________________________________________________________
+;
+; Includes binary-to-decimal subroutine by Alwin Henseler
+; Located at: https://www.msx.org/forum/development/msx-development/32-bit-long-ascii
+;_______________________________________________________________________________
+;
+; Includes division subroutines from: https://wikiti.brandonw.net/
+;;_______________________________________________________________________________
+;
+#include "../../ver.inc"		; Used for building RomWBW
+;#include "ver.inc"			; Used for testing purposes during code development
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+STKSIZ		.EQU	$40		; Working stack size
+;
+RESTART		.EQU	$0000		; CP/M restart vector
+BDOS		.EQU	$0005		; BDOS invocation vector
+;
+IDENT		.EQU	$FFFE		; loc of RomWBW HBIOS ident ptr
+;
+BF_SYSVER	.EQU	$F1		; BIOS: VER function
+BF_SYSGET	.EQU	$F8		; HBIOS: SYSGET function
+BF_SYSSET	.EQU	$F9		; HBIOS: SYSSET function
+BF_SYSGETTIMER	.EQU	$D0		; TIMER subfunction
+BF_SYSSETTIMER	.EQU	$D0		; TIMER subfunction
+BF_SYSGETSECS	.EQU	$D1		; SECONDS subfunction
+BF_SYSSETSECS	.EQU	$D1		; SECONDS subfunction
+;
+;ASCII Control Characters
+LF		.EQU 	00AH		; Line Feed
+CR		.EQU 	00DH		; Carriage Return
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+	.ORG	$100
+;
+	; setup stack (save old value)
+	LD	(STKSAV),SP		; save stack
+	LD	SP,STACK		; set new stack
+;
+	; initialization
+	CALL	INIT			; initialize
+	JR	NZ,EXIT			; abort if init fails
+;
+	; process
+	CALL 	PROCESS			; do main processing
+	JR	NZ,EXIT			; abort on error
+;
+EXIT:	; clean up and return to command processor
+	CALL	CRLF			; formatting
+	LD	SP,(STKSAV)		; restore stack
+	;JP	RESTART			; return to CP/M via restart
+	RET				; return to CP/M w/o restart
+;
+; Initialization
+;
+INIT:
+	CALL	CRLF			; formatting
+	LD	DE,MSGBAN		; point to version message part 1
+	CALL	PRTSTR			; print it
+;
+	CALL	IDBIO			; identify active BIOS
+	CP	1				; check for HBIOS
+	JP	NZ,ERRBIO		; handle BIOS error
+;
+	LD	A,RMJ << 4 | RMN	; expected HBIOS ver
+	CP	D			; compare with result above
+	JP	NZ,ERRBIO		; handle BIOS error
+;
+INITX:
+	; initialization complete
+	XOR	A			; signal success
+	RET				; return
+;
+; Process
+;
+PROCESS:
+	; look for start of parms
+	LD	HL,$81			; point to start of parm area (past len byte)
+;
+PROCESS00:
+	CALL	NONBLANK		; skip to next non-blank char
+	JP	Z,PROCESS0		; no more parms, go to display
+;
+	; check for option, introduced by a "/"
+	CP	'/'			; start of options?
+	JP	NZ,USAGE		; yes, handle option
+	CALL	OPTION			; do option processing
+	RET	NZ			; done if non-zero return
+	JR	PROCESS00		; continue looking for options
+;
+PROCESS0:
+;
+	; Test of API function to set seconds value
+	;LD	B,BF_SYSSET		; HBIOS SYSGET function
+	;LD	C,BF_SYSSETSECS		; SECONDS subfunction
+	;LD	DE,0			; set seconds value
+	;LD	HL,1000			; ... to 1000
+	;RST	08			; call HBIOS, DE:HL := seconds value
+;
+	; get and print seconds value
+	CALL	CRLF2			; formatting
+;
+PROCESS1:
+	LD	B,BF_SYSGET		; HBIOS SYSGET function
+	LD	C,BF_SYSGETTIMER	; TIMER subfunction
+	RST	08			; call HBIOS, DE:HL := timer value
+
+	LD	A,(FIRST)
+	OR	A
+	LD	A,0
+	LD	(FIRST),A
+	JR	NZ,PROCESS1A
+
+	; TEST FOR NEW VALUE
+	LD	A,(LAST)		; last LSB value to A
+	CP	L			; compare to current LSB
+	JP	Z,PROCESS2		; if equal, bypass display
+
+;*******************************************************************************
+;*******************************************************************************
+
+; Formatting code added/amended to print values in decimal and Hours-Mins-Secs
+; MartinR June & July-2024
+
+PROCESS1A:
+; Save and print new value
+	LD	A,L			; new LSB value to A
+	LD	(LAST),A		; save as last value
+	CALL	PRTCR			; back to start of line
+
+	CALL	B2D32			; Convert DE:HL into ASCII; Start of ASCII buffer returned in HL
+	EX	DE,HL
+	CALL	PRTSTR			; Display the value
+
+	LD	DE,STRTICK		; "Ticks" message
+	CALL	PRTSTR			; Display it
+
+; Get and print seconds value in decimal
+
+	LD	B,BF_SYSGET		; HBIOS SYSGET function
+	LD	C,BF_SYSGETSECS		; SECONDS subfunction
+	RST	08			; Call HBIOS; DE:HL := seconds value; C := fractional part
+
+	LD	(SEC_MS),DE		; Store the most significant part of the 'seconds' value
+	LD	(SEC_LS),HL		; And the less significant......
+	LD	A,C			; And also the fractional part
+	SLA	A			; But double the 50Hz 'ticks' value to give 1/100ths of a second
+	LD	(SEC_FR),A
+
+	CALL	B2D32			; Convert DE:HL into ASCII; Start of ASCII buffer returned in HL
+	EX	DE,HL
+	CALL	PRTSTR			; Display the value
+
+	CALL	PRTDOT			; Print a '.' seperator
+
+	LD	A,(SEC_FR)		; Retrieve fractional part (1/100ths second)
+	CALL	B2D8			; Convert into ASCII - up to 3 digits. Umber of digits returned C
+	CALL	PRT_LEAD0		; Print a leading zero if there is exactly 1 character in the string
+	EX	DE,HL			; Start of ASCII buffer returned in HL
+	CALL	PRTSTR			; Display fractional part of the value
+
+	LD	DE,STRSEC		; "Seconds" message
+	CALL	PRTSTR			; Display it
+
+; Now print the seconds value as HMS
+
+	LD	BC,(SEC_MS)		; Retrive the 'seconds' value into AC:IX
+	LD	A,B
+	LD	IX,(SEC_LS)
+	LD	DE,3600			; 3600 seconds in an hour
+	CALL	DIV32BY16		; AC:IX divided by DE; Answer in AC:IX; Remainder in HL
+
+	PUSH	HL			; Preserve the remainder on the stack
+
+	LD	D,A			; Shuffle registers around ready for conversion to ASCII
+	LD	A,C			; AC:IX into DE:HL
+	LD	E,A
+	PUSH	IX
+	POP	HL
+
+	CALL	B2D32			; Convert DE:HL into ASCII; Start of ASCII buffer returned in HL
+	EX	DE,HL
+	CALL	PRTSTR			; Display the hours value
+
+	CALL	PRTCOLON		; Print a ':' seperator
+
+	POP	HL			; Retrive the remainder (seconds)
+
+	LD	C,60			; 60 seconds in a minute
+	CALL	DIV_HL_C		; HL divided by C; Answer in HL; Remainder in A
+
+	PUSH	AF			; Preserve the remainder (seconds) on the stack
+
+	CALL	B2D16			; Convert HL into ASCII; Start of ASCII buffer returned in HL; Count in C
+	CALL	PRT_LEAD0		; Print a leading zero if there is exactly 1 character in the string
+	EX	DE,HL
+	CALL	PRTSTR			; Display the minutes value
+
+	CALL	PRTCOLON		; Print a ':' seperator
+
+	POP	AF			; Retrive the remainder (seconds)
+
+	CALL	B2D8			; Convert A into ASCII; Start of ASCII buffer returned in HL; Count in C
+	CALL	PRT_LEAD0		; Print a leading zero if there is exactly 1 character in the string
+	EX	DE,HL
+	CALL	PRTSTR			; Display the seconds value
+
+	CALL	PRTDOT			; Print a '.' seperator
+
+	LD	A,(SEC_FR)		; Retrieve the fractional part (1/100ths) of the seconds
+	CALL	B2D8			; Convert A into ASCII; Start of ASCII buffer returned in HL
+	CALL	PRT_LEAD0		; Print a leading zero if there is exactly 1 character in the string
+	EX	DE,HL
+	CALL	PRTSTR			; Display the value
+
+	LD	DE,STRHMS		; Print "HH:MM:SS" message
+	CALL	PRTSTR
+
+;*******************************************************************************
+;*******************************************************************************
+
+PROCESS2:
+	LD	A,(CONT)		; continuous display?
+	OR	A			; test for true/false
+	JR	Z,PROCESS3		; if false, get out
+;
+	LD	C,6			; BDOS: direct console I/O
+	LD	E,$FF			; input char
+	CALL	BDOS			; call BDOS, A := char
+	OR	A			; test for zero
+	JP	Z,PROCESS1		; loop until char pressed
+;
+PROCESS3:
+	XOR	A			; signal success
+	RET
+;
+; Handle special options
+;
+OPTION:
+	INC	HL			; next char
+	LD	A,(HL)			; get it
+	OR	A			; zero terminator?
+	RET	Z			; done if so
+	CP	' '			; blank?
+	RET	Z			; done if so
+	CP	'?'			; is it a '?'?
+	JP	Z,USAGE			; yes, display usage
+	CP	'C'			; is it a 'C', continuous?
+	JP	Z,SETCONT		; yes, set continuous display
+	JP	ERRPRM			; anything else is an error
+;
+USAGE:
+	JP	ERRUSE			; display usage and get out
+;
+SETCONT:
+;
+	OR	$FF			; SET A TO TRUE
+	LD	(CONT),A		; AND SET CONTINUOUS FLAG
+	JR	OPTION			; CHECK FOR MORE OPTION LETTERS
+;
+; Identify active BIOS.  RomWBW HBIOS=1, UNA UBIOS=2, else 0
+;
+IDBIO:
+;
+	; CHECK FOR UNA (UBIOS)
+	LD	A,($FFFD)		; fixed location of UNA API vector
+	CP	$C3			; jp instruction?
+	JR	NZ,IDBIO1		; if not, not UNA
+	LD	HL,($FFFE)		; get jp address
+	LD	A,(HL)			; get byte at target address
+	CP	$FD			; first byte of UNA push ix instruction
+	JR	NZ,IDBIO1		; if not, not UNA
+	INC	HL			; point to next byte
+	LD	A,(HL)			; get next byte
+	CP	$E5			; second byte of UNA push ix instruction
+	JR	NZ,IDBIO1		; if not, not UNA, check others
+;
+	LD	BC,$04FA		; UNA: get BIOS date and version
+	RST	08			; DE := ver, HL := date
+;
+	LD	A,2			; UNA BIOS id = 2
+	RET				; and done
+;
+IDBIO1:
+	; Check for RomWBW (HBIOS)
+	LD	HL,($FFFE)		; HL := HBIOS ident location
+	LD	A,'W'			; First byte of ident
+	CP	(HL)			; Compare
+	JR	NZ,IDBIO2		; Not HBIOS
+	INC	HL				; Next byte of ident
+	LD	A,~'W'			; Second byte of ident
+	CP	(HL)			; Compare
+	JR	NZ,IDBIO2		; Not HBIOS
+;	
+	LD	B,BF_SYSVER		; HBIOS: VER function
+	LD	C,0			; required reserved value
+	RST	08			; DE := version, L := platform id
+;
+	LD	A,1			; HBIOS BIOS id = 1
+	RET				; and done
+;
+IDBIO2:
+	; No idea what this is
+	XOR	A			; Setup return value of 0
+	RET				; and done
+;
+; Print character in A without destroying any registers
+;
+PRTCHR:
+	PUSH	BC			; save registers
+	PUSH	DE
+	PUSH	HL
+	LD	E,A			; character to print in E
+	LD	C,$02			; BDOS function to output a character
+	CALL	BDOS			; do it
+	POP	HL			; restore registers
+	POP	DE
+	POP	BC
+	RET
+;
+; Print a 0 if C=1
+;
+PRT_LEAD0:
+	DEC	C			; Decrement C, and a value of 1 becomee zero
+	RET	NZ			; If C wasn't 1, then no leading space required
+	LD	A,'0'			; Print the leading zero
+	JR	Z,PRTCHR
+;
+PRTDOT:
+;
+	; shortcut to print a dot preserving all regs
+	PUSH	AF			; save af
+	LD	A,'.'			; load dot char
+	CALL	PRTCHR			; print it
+	POP	AF			; restore af
+	RET				; done
+;
+PRTCOLON:
+;
+	; shortcut to print a colon preserving all regs
+	PUSH	AF			; save af
+	LD	A,':'			; load colon char
+	CALL	PRTCHR			; print it
+	POP	AF			; restore af
+	RET				; done
+;
+PRTCR:
+;
+	; shortcut to print a CR preserving all regs
+	PUSH	AF			; save af
+	LD	A,13			; load CR value
+	CALL	PRTCHR			; print it
+	POP	AF			; restore af
+	RET				; done
+;
+; Print a zero terminated string at (DE) without destroying any registers
+;
+PRTSTR:
+	PUSH	DE
+;
+PRTSTR1:
+	LD	A,(DE)			; get next char
+	OR	A
+	JR	Z,PRTSTR2
+	CALL	PRTCHR
+	INC	DE
+	JR	PRTSTR1
+;
+PRTSTR2:
+	POP	DE			; restore registers
+	RET
+;
+; Print the value in A in hex without destroying any registers
+;
+PRTHEX:
+	PUSH	AF			; save AF
+	PUSH	DE			; save DE
+	CALL	HEXASCII		; convert value in A to hex chars in DE
+	LD	A,D			; get the high order hex char
+	CALL	PRTCHR			; print it
+	LD	A,E			; get the low order hex char
+	CALL	PRTCHR			; print it
+	POP	DE			; restore DE
+	POP	AF			; restore AF
+	RET				; done
+;
+; print the hex word value in bc
+;
+PRTHEXWORD:
+	PUSH	AF
+	LD	A,B
+	CALL	PRTHEX
+	LD	A,C
+	CALL	PRTHEX
+	POP	AF
+	RET
+;
+; print the hex dword value in de:hl
+;
+PRTHEX32:
+	PUSH	BC
+	PUSH	DE
+	POP	BC
+	CALL	PRTHEXWORD
+	PUSH	HL
+	POP	BC
+	CALL	PRTHEXWORD
+	POP	BC
+	RET
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+HEXASCII:
+	LD	D,A			; save A in D
+	CALL	HEXCONV			; convert low nibble of A to hex
+	LD	E,A			; save it in E
+	LD	A,D			; get original value back
+	RLCA				; rotate high order nibble to low bits
+	RLCA
+	RLCA
+	RLCA
+	CALL	HEXCONV			; convert nibble
+	LD	D,A			; save it in D
+	RET				; done
+;
+; Convert low nibble of A to ascii hex
+;
+HEXCONV:
+	AND	$0F			; low nibble only
+	ADD	A,$90
+	DAA
+	ADC	A,$40
+	DAA
+	RET
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+PRTDECB:
+	PUSH	HL
+	LD	H,0
+	LD	L,A
+	CALL	PRTDECW			; print it
+	POP	HL
+	RET
+;
+PRTDECW:
+	PUSH	AF
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	CALL	PRTDEC0
+	POP	HL
+	POP	DE
+	POP	BC
+	POP	AF
+	RET
+;
+PRTDEC0:
+	LD	E,'0'
+	LD	BC,-10000
+	CALL	PRTDEC1
+	LD	BC,-1000
+	CALL	PRTDEC1
+	LD	BC,-100
+	CALL	PRTDEC1
+	LD	C,-10
+	CALL	PRTDEC1
+	LD	E,0
+	LD	C,-1
+PRTDEC1:
+	LD	A,'0' - 1
+PRTDEC2:
+	INC	A
+	ADD	HL,BC
+	JR	C,PRTDEC2
+	SBC	HL,BC
+	CP	E
+	RET	Z
+	LD	E,0
+	CALL	PRTCHR
+	RET
+;
+; Start a new line
+;
+CRLF2:
+	CALL	CRLF			; two of them
+CRLF:
+	PUSH	AF			; preserve AF
+	LD	A,CR
+	CALL	PRTCHR			; print CR
+	LD	A,LF
+	CALL	PRTCHR			; print LF
+	POP	AF			; restore AF
+	RET
+;
+; Get the next non-blank character from (HL).
+;
+NONBLANK:
+	LD	A,(HL)			; load next character
+	OR	A			; string ends with a null
+	RET	Z			; if null, return pointing to null
+	CP	' '			; check for blank
+	RET	NZ			; return if not blank
+	INC	HL			; if blank, increment character pointer
+	JR	NONBLANK		; and loop
+;
+; Convert character in A to uppercase
+;
+UCASE:
+	CP	'a'			; if below 'a'
+	RET	C			; ... do nothing and return
+	CP	'z' + 1			; if above 'z'
+	RET	NC			; ... do nothing and return
+	RES	5,A			; clear bit 5 to make lower case -> upper case
+	RET				; and return
+;
+; Add the value in A to HL (HL := HL + A)
+;
+ADDHL:
+	ADD	A,L			; A := A + L
+	LD	L,A			; Put result back in L
+	RET	NC			; if no carry, we are done
+	INC	H			; if carry, increment H
+	RET				; and return
+;
+; Jump indirect to address in HL
+;
+JPHL:
+	JP	(HL)
+;
+; Errors
+;
+ERRUSE:	; command usage error (syntax)
+	LD	DE,MSGUSE
+	JR	ERR
+;
+ERRPRM:	; command parameter error (syntax)
+	LD	DE,MSGPRM
+	JR	ERR
+;
+ERRBIO:	; invalid BIOS or version
+	LD	DE,MSGBIO
+	JR	ERR
+;
+ERR:	; print error string and return error signal
+	CALL	CRLF2			; print newline
+;
+ERR1:	; without the leading crlf
+	CALL	PRTSTR			; print error string
+;
+ERR2:	; without the string
+;	CALL	CRLF			; print newline
+	OR	$FF			; signal error
+	RET				; done
+;
+;
+;===============================================================================
+; Subroutine to print decimal numbers
+;===============================================================================
+;
+; Combined routine for conversion of different sized binary numbers into
+; directly printable ASCII(Z)-string
+; Input value in registers, number size and -related to that- registers to fill
+; is selected by calling the correct entry:
+;
+;  entry  inputregister(s)  decimal value 0 to:
+;   B2D8             A                    255  (3 digits)
+;   B2D16           HL                  65535   5   "
+;   B2D24         E:HL               16777215   8   "
+;   B2D32        DE:HL             4294967295  10   "
+;   B2D48     BC:DE:HL        281474976710655  15   "
+;   B2D64  IX:BC:DE:HL   18446744073709551615  20   "
+;
+; The resulting string is placed into a small buffer attached to this routine,
+; this buffer needs no initialization and can be modified as desired.
+; The number is aligned to the right, and leading 0's are replaced with spaces.
+; On exit HL points to the first digit, (B)C = number of decimals
+; This way any re-alignment / postprocessing is made easy.
+; Changes: AF,BC,DE,HL,IX
+;
+; by Alwin Henseler
+; https://msx.org/forum/topic/who-who/dutch-hardware-guy-pops-back-sort
+;
+; Found at:
+; https://www.msx.org/forum/development/msx-development/32-bit-long-ascii
+;
+; Tweaked to assemble using TASM 3.2 by MartinR 23June2024
+;
+B2D8:	LD	H,0
+	LD	L,A
+B2D16:	LD	E,0
+B2D24:	LD	D,0
+B2D32:	LD	BC,0
+B2D48:	LD	IX,0			; zero all non-used bits
+B2D64:	LD	(B2DINV),HL
+	LD	(B2DINV+2),DE
+	LD	(B2DINV+4),BC
+	LD	(B2DINV+6),IX		; place full 64-bit input value in buffer
+	LD	HL,B2DBUF
+	LD	DE,B2DBUF+1
+	LD	(HL),' '
+B2DFILC	.EQU $-1			; address of fill-character
+	LD	BC,18
+	LDIR				; fill 1st 19 bytes of buffer with spaces
+	LD	(B2DEND-1),BC		; set BCD value to "0" & place terminating 0
+	LD	E,1			; no. of bytes in BCD value
+	LD	HL,B2DINV+8		; (address MSB input)+1
+	LD	BC,00909H
+	XOR	A
+B2DSKP0:DEC	B
+	JR	Z,B2DSIZ		; all 0: continue with postprocessing
+	DEC	HL
+	OR	(HL)			; find first byte <>0
+	JR	Z,B2DSKP0
+B2DFND1:DEC	C
+	RLA
+	JR	NC,B2DFND1		; determine no. of most significant 1-bit
+	RRA
+	LD	D,A			; byte from binary input value
+B2DLUS2:PUSH	HL
+	PUSH	BC
+B2DLUS1:LD	HL,B2DEND-1		; address LSB of BCD value
+	LD	B,E			; current length of BCD value in bytes
+	RL	D			; highest bit from input value -> carry
+B2DLUS0:LD	A,(HL)
+	ADC	A,A
+	DAA
+	LD	(HL),A			; double 1 BCD byte from intermediate result
+	DEC	HL
+	DJNZ	B2DLUS0			; and go on to double entire BCD value (+carry!)
+	JR	NC,B2DNXT
+	INC	E			; carry at MSB -> BCD value grew 1 byte larger
+	LD	(HL),1			; initialize new MSB of BCD value
+B2DNXT:	DEC	C
+	JR	NZ,B2DLUS1		; repeat for remaining bits from 1 input byte
+	POP	BC			; no. of remaining bytes in input value
+	LD	C,8			; reset bit-counter
+	POP	HL			; pointer to byte from input value
+	DEC	HL
+	LD	D,(HL)			; get next group of 8 bits
+	DJNZ	B2DLUS2			; and repeat until last byte from input value
+B2DSIZ:	LD	HL,B2DEND		; address of terminating 0
+	LD	C,E			; size of BCD value in bytes
+	OR	A
+	SBC	HL,BC			; calculate address of MSB BCD
+	LD	D,H
+	LD	E,L
+	SBC	HL,BC
+	EX	DE,HL			; HL=address BCD value, DE=start of decimal value
+	LD	B,C			; no. of bytes BCD
+	SLA	C			; no. of bytes decimal (possibly 1 too high)
+	LD	A,'0'
+	RLD				; shift bits 4-7 of (HL) into bit 0-3 of A
+	CP	'0'			; (HL) was > 9h?
+	JR	NZ,B2DEXPH		; if yes, start with recording high digit
+	DEC	C			; correct number of decimals
+	INC	DE			; correct start address
+	JR	B2DEXPL			; continue with converting low digit
+B2DEXP:	RLD				; shift high digit (HL) into low digit of A
+B2DEXPH:LD	(DE),A			; record resulting ASCII-code
+	INC	DE
+B2DEXPL:RLD
+	LD	(DE),A
+	INC	DE
+	INC	HL			; next BCD-byte
+	DJNZ	B2DEXP			; and go on to convert each BCD-byte into 2 ASCII
+	SBC	HL,BC			; return with HL pointing to 1st decimal
+	RET
+
+B2DINV:	.FILL	8			; space for 64-bit input value (LSB first)
+B2DBUF:	.FILL	20			; space for 20 decimal digits
+B2DEND:	.DB	000H			; space for terminating character
+
+;*******************************************************************************
+
+; The following routine divides AC:IX by DE and places the quotient
+; in AC:IX and the remainder in HL
+
+; https://wikiti.brandonw.net/
+
+; IN:	ACIX=dividend, DE=divisor
+; OUT:	ACIX=quotient, DE=divisor, HL=remainder, B=0
+
+DIV32BY16:
+	LD	HL,0
+	LD	B,32
+DIV32BY16_LOOP:
+	ADD	IX,IX
+	RL	C
+	RLA
+	ADC	HL,HL
+	JR	C,DIV32BY16_OVERFLOW
+	SBC	HL,DE
+	JR	NC,DIV32BY16_SETBIT
+	ADD	HL,DE
+	DJNZ	DIV32BY16_LOOP
+	RET
+DIV32BY16_OVERFLOW:
+	OR	A
+	SBC	HL,DE
+DIV32BY16_SETBIT:
+	INC	IX
+	DJNZ	DIV32BY16_LOOP
+	RET
+
+;*******************************************************************************
+
+; The following routine divides HL by C and places the quotient in HL
+; and the remainder in A
+
+; https://wikiti.brandonw.net/
+
+DIV_HL_C:
+	XOR	A
+	LD	B, 16
+
+LOOPDIV1:
+	ADD	HL, HL
+	RLA
+	JR	C, $+5
+	CP	C
+	JR	C, $+4
+
+	SUB	C
+	INC	L
+
+	DJNZ	LOOPDIV1
+
+	RET
+
+;===============================================================================
+; Messages Section
+;===============================================================================
+
+MSGBAN	.DB	"TIMER v1.31, 24-Jul-2024",CR,LF
+	.DB	"Copyright (C) 2019, Wayne Warthen, GNU GPL v3",CR,LF
+	.DB	"Updated by MartinR 2024",0
+MSGUSE	.DB	"Usage: TIMER [/C] [/?]",CR,LF
+	.DB	"  ex. TIMER           (display current timer value)",CR,LF
+	.DB	"      TIMER /?        (display version and usage)",CR,LF
+	.DB	"      TIMER /C        (display timer value continuously)",0
+MSGPRM	.DB	"Parameter error (TIMER /? for usage)",0
+MSGBIO	.DB	"Incompatible BIOS or version, "
+	.DB	"HBIOS v", '0' + rmj, ".", '0' + rmn, " required",0
+STRTICK	.DB	" Ticks   ",0
+STRSEC	.DB	" Seconds   ",0
+STRHMS	.DB	" HH:MM:SS",0
+
+;===============================================================================
+; Storage Section
+;===============================================================================
+
+SEC_MS	.DW	0			; Storage space to preserve the seconds value as
+SEC_LS	.DW	0			; most and less significant parts
+SEC_FR	.DB	0			; And the fractional part (1/100s of a second)
+
+LAST	.DB	0			; last LSB of timer value
+CONT	.DB	0			; non-zero indicates continuous display
+FIRST	.DB	$FF			; first pass flag (true at start)
+
+STKSAV	.DW	0			; stack pointer saved at start
+	.FILL STKSIZ,0			; stack
+STACK	.EQU $				; new stack top
+
+	.END
diff --git a/Source/Build.cmd b/Source/Build.cmd
index dd462f12..b0d0b750 100644
--- a/Source/Build.cmd
+++ b/Source/Build.cmd
@@ -5,12 +5,13 @@ setlocal
 call BuildProp || exit /b
 call BuildShared || exit /b
 call BuildBP || exit /b
-call BuildImages || exit /b
 call BuildROM %* || exit /b
+call BuildImages || exit /b
 call BuildZRC || exit /b
 call BuildZ1RCC || exit /b
 call BuildZZRCC || exit /b
 call BuildZRC512 || exit /b
+call BuildFZ80 || exit /b
 
 if "%1" == "dist" (
   call Clean || exit /b
diff --git a/Source/BuildFZ80.cmd b/Source/BuildFZ80.cmd
new file mode 100644
index 00000000..1844e7cc
--- /dev/null
+++ b/Source/BuildFZ80.cmd
@@ -0,0 +1,4 @@
+@echo off
+setlocal
+
+pushd FZ80 && call Build || exit /b & popd
diff --git a/Source/CBIOS/cbios.asm b/Source/CBIOS/cbios.asm
index d1320ae0..ed29a789 100644
--- a/Source/CBIOS/cbios.asm
+++ b/Source/CBIOS/cbios.asm
@@ -439,12 +439,12 @@ WBOOT:
 	LD	DE,(BNKBIOS)		; UBIOS_PAGE (SEE PAGES.INC)
 	RST	08			; DO IT
 	PUSH	DE			; SAVE PREVIOUS BANK
-	
+
 	LD	HL,(CCPBUF)		; ADDRESS OF CCP BUF IN BIOS MEM
 	LD	DE,CCP_LOC		; ADDRESS IN HI MEM OF CCP
 	LD	BC,CCP_SIZ		; SIZE OF CCP
 	LDIR				; DO IT
-	
+
 	LD	BC,$01FB		; UNA FUNC = SET BANK
 	POP	DE			; RECOVER OPERATING BANK
 	RST	08			; DO IT
@@ -804,7 +804,7 @@ WRITE:
 	LD	A,C
 	LD	(WRTYPE),A	; SAVE WRITE TYPE
 	LD	A,DOP_WRITE
-	JR	READWRITE
+	;JR	READWRITE	; OPTIMISATION (FALL THRU TO READWRITE)
 ;
 ;__________________________________________________________________________________________________
 READWRITE:
@@ -1232,11 +1232,11 @@ DSK_GETINF:
 	RLCA			; ... TO USE AS OFFSET INTO DRVMAP
 	CALL	ADDHLA		; ADD OFFSET
 	LD	D,(HL)		; D := UNIT
-	
+
 	LD	A,D		; PUT UNIT IN ACCUM
 	INC	A		; $FF -> $00
 	JR	Z,DSK_GETINF1	; HANDLE UNASSIGNED DRIVE LETTER
-	
+
 	INC	HL		; BUMP TO SLICE
 	LD	E,(HL)		; E := SLICE
 	INC	HL		; POINT TO DPH LSB
@@ -1261,7 +1261,8 @@ DSK_GETINF1:	; ERROR RETURN
 	INC	A
 	RET
 ;
-;
+; BIOS FUNCTION FOR SELECTING CPM DRIVE (A-P) IN C REGISTER
+; RETURN HL - BASE ADDRESS OF DPH (0x0000 FOR AN ERROR)
 ;
 DSK_SELECT:
 	LD	B,E		; SAVE E IN B FOR NOW
@@ -1321,19 +1322,8 @@ DSK_SELECT1A:
 	LD	(MEDID),A
 ;
 #ELSE
-;
-	; DETERMINE MEDIA IN DRIVE
-	LD	A,(SEKUNIT)	; GET UNIT
-	LD	C,A		; STORE IN C
-	LD	B,BF_DIOMEDIA	; DRIVER FUNCTION = DISK MEDIA
-	LD	E,1		; ENABLE MEDIA CHECK/DISCOVERY
-	RST	08		; DO IT
-	LD	A,E		; RESULTANT MEDIA ID TO ACCUM
-	LD	(MEDID),A	; SAVE IT
-	OR	A		; SET FLAGS
-	LD	HL,0		; ASSUME FAILURE
-	RET	Z		; BAIL OUT IF NO MEDIA
-;
+	; NOTE: Setting the (MEDID) is not required for RomWBW at this point
+	; The media ID is determined during call to DSK_MBR:
 #ENDIF
 ;
 	; CLEAR LBA OFFSET (DWORD)
@@ -1343,24 +1333,7 @@ DSK_SELECT1A:
 	SET	7,H		; ASSUME LBA ACCESS FOR NOW
 	LD	(SEKLBA+2),HL	; CLEAR SECOND WORD
 ;
-#IFDEF PLTWBW
-;
-	LD	A,(SEKUNIT)	; GET UNIT
-	LD	C,A		; STORE IN C
-	LD	B,BF_DIODEVICE	; HBIOS FUNC: REPORT DEVICE INFO
-	RST	08		; GET UNIT INFO, DEVICE TYPE IN D
-	LD	A,D		; DEVICE TYPE -> A
-	CP	DIODEV_FD	; FLOPPY?
-	JR	NZ,DSK_SELECT1B	; IF NOT, DO LBA IO
-	LD	HL,SEKLBA+3	; POINT TO HIGH ORDER BYTE
-	RES	7,(HL)		; SWITCH FROM LBA -> CHS
-;
-#ENDIF
-;
 DSK_SELECT1B:
-	; SET LEGACY SECTORS PER SLICE
-	LD	HL,16640	; LEGACY SECTORS PER SLICE
-	LD	(SPS),HL	; SAVE IT
 ;
 	; CHECK MBR OF PHYSICAL DISK BEING SELECTED
 	; WILL UPDATE MEDID AND LBAOFF IF VALID CP/M PARTITION EXISTS
@@ -1407,29 +1380,47 @@ DSK_SELECT2:
 ; THE MEDIA ID (MEDID).
 ;
 DSK_MBR:
+;
+#IFDEF PLTWBW
+;
+	; GET EXTENDED INFORMATION FOR THE DEVICE/SLICE
+	LD	A,(SEKUNIT)	; PASSING BOOT UNIT
+	LD	D,A
+	LD	A,(SLICE)	; AND SLICE
+	LD	E,A
+	LD	B,BF_EXTSLICE	; HBIOS FUNC: SLICE
+	RST	08		; DO IT
+;
+	; CHECK ERRORS FROM THE FUNCTION
+	RET	NZ		; ABORT ON ERROR
+
+	; SAVE MEDIA ID
+	LD	A,C		; C IS MEDIA ID FROM HBIOS
+	LD	(MEDID),A	; SAVE IT
+
+	; TEST IF FLOPPY MEDIA - BIT 7 DEVICE ATTRIBUTES
+	BIT	7,B		; B IS ATTRIBUTES FROM HBIOS
+	JR	NZ,DSK_MBR11	; FLOPPY - SAVE AND RETURN DEHL -> CHS
+
+	; CODE FALL THRU NEXT IFDEF AND SETS 7,D
+	; THEN RETURNS DEHL -> LBA MODE
+;
+#ENDIF
+;
+#IFDEF PLTUNA
 	; CHECK MEDIA TYPE, ONLY HARD DISK IS APPLICABLE
 	LD	A,(MEDID)	; GET MEDIA ID
 	CP	MID_HD		; HARD DISK?
 	JR	Z,DSK_MBR0	; IF SO, CONTINUE
 	XOR	A		; ELSE, N/A, SIGNAL SUCCESS
 	RET			; AND RETURN
-	
+
 DSK_MBR0:
-;
-#IFDEF PLTWBW
-	; ACTIVATE BIOS BANK TO ACCESS DISK BUFFER
-	LD	(STKSAV),SP	; SAVE CUR STACK
-	LD	SP,STACK	; NEW STACK IN HI MEM
-	LD	A,(BNKBIOS)	; ACTIVATE HBIOS BANK
-	PUSH	IX		; SAVE IX
-	LD	IX,DSK_MBR1	; ROUTINE TO RUN
-	CALL	HB_BNKCALL	; DO IT
-	POP	IX		; RESTORE IX
-	LD	SP,(STKSAV)	; RESTORE ORIGINAL STACK
-	RET
-#ENDIF
-;
 DSK_MBR1:
+	; SET LEGACY SECTORS PER SLICE - USED IN CAPACITY CALC
+	LD	HL,SPS_HD512	; LEGACY SECTORS PER SLICE
+	LD	(SPS),HL	; SAVE IT
+;
 	; FLUSH DSKBUF TO MAKE SURE IT IS SAFE TO USE IT.
 	CALL	BLKFLSH		; MAKE SURE DISK BUFFER IS NOT DIRTY
 	XOR	A		; CLEAR ACCUM
@@ -1441,9 +1432,6 @@ DSK_MBR1:
 	LD	C,A		; PUT IN C
 	LD	DE,0		; LBA SECTOR ZERO
 	LD	HL,0		; ...
-#IFDEF PLTWBW
-	SET	7,D		; MAKE SURE LBA ACCESS BIT SET
-#ENDIF
 	CALL	DSK_IO2		; DO IT
 	RET	NZ		; ABORT ON ERROR
 ;
@@ -1487,6 +1475,8 @@ DSK_MBR3:
 	; CHECK THAT REQUESTED SLICE IS "INSIDE" PARTITION
 	; SLICE SIZE IS EXACTLY 16,384 SECTORS (8MB), SO WE CAN JUST
 	; RIGHT SHIFT PARTITION SECTOR COUNT BY 14 BITS
+	; IMPLEMENTED BY : LEFT SHIFT BY 2, AND TAKE HIGH ORDER WORD
+	; SAME AS DISCARDING THE LOWER 14 BITS, SINCE KEEP 2 BY SHIFT
 	LD	E,(HL)		; HL POINTS TO FIRST BYTE
 	INC	HL		; ... OF 32 BIT PARTITION
 	LD	D,(HL)		; ... SECTOR COUNT,
@@ -1510,7 +1500,7 @@ DSK_MBR3:
 ;
 DSK_MBR4:
 	; IF BOOT FROM PARTITION, USE NEW SECTORS PER SLICE VALUE
-	LD	HL,16384	; NEW SECTORS PER SLICE
+	LD	HL,SPS_HD1K	; NEW SECTORS PER SLICE
 	LD	(SPS),HL	; SAVE IT
 
 	; UPDATE MEDIA ID
@@ -1519,18 +1509,19 @@ DSK_MBR4:
 ;
 DSK_MBR5:
 	; ADJUST LBA OFFSET BASED ON TARGET SLICE
+	; ALSO JP HERE IF NO PARTITION TABLE, OR NO CPM PARTION
 	LD	A,(SLICE)	; GET SLICE, A IS LOOP CNT
 	LD	HL,(SEKLBA)	; SET DE:HL
 	LD	DE,(SEKLBA+2)	; ... TO STARTING LBA
 	LD	BC,(SPS)	; SECTORS PER SLICE
 	RES	7,D		; CLEAR LBA MODE BIT
-DSK_MBR6:                       
+DSK_MBR6:
 	OR	A		; SET FLAGS TO CHECK LOOP CNTR
 	JR	Z,DSK_MBR8	; DONE IF COUNTER EXHAUSTED
 	ADD	HL,BC		; ADD ONE SLICE TO LOW WORD
 	JR	NC,DSK_MBR7	; CHECK FOR CARRY
 	INC	DE		; IF SO, BUMP HIGH WORD
-DSK_MBR7:                       
+DSK_MBR7:
 	DEC	A		; DEC LOOP DOWNCOUNTER
 	JR	DSK_MBR6	; AND LOOP
 DSK_MBR8:
@@ -1552,21 +1543,11 @@ DSK_MBR9:
 	LD	(CAP_REQ),HL	; LSW
 	LD	(CAP_REQ+2),DE	; MSW
 ;
-#IFDEF PLTWBW
-	; GET DSK_CAP (DE:HL)
-	LD	B,BF_DIOCAP	; HBIOS DISK CAPACITY FUNC
-	LD	A,(SEKUNIT)	; DISK UNIT NUMBER
-	LD	C,A		; ... INTO C
-	RST	08		; HBIOS CALL (DE:HL = CAPACITY)
-#ENDIF
-;
-#IFDEF PLTUNA
 	; GET DSK_CAP (DE:HL)
 	LD	C,$45		; UBIOS DISK INFO FUNC
 	LD	A,(SEKUNIT)	; DISK UNIT NUMBER
 	LD	B,A		; ... INTO B
 	RST	08		; CALL UNA (DE:HL = CAPACITY)
-#ENDIF
 ;
 	; SAVE DSK_CAP (DE:HL)
 	PUSH	DE		; SAVE DSK_CAP (MSW)
@@ -1591,9 +1572,12 @@ DSK_MBR9:
 	OR	$FF		; SIGNAL ERROR
 	RET			; DONE
 ;
+#ENDIF
+;
 DSK_MBR10:
 	; FINALIZE SLICE LBA
 	SET	7,D		; SET LBA ACCESS FLAG
+DSK_MBR11:
 	; RESAVE IT
 	LD	(SEKLBA),HL	; LOWORD
 	LD	(SEKLBA+2),DE	; HIWORD
@@ -1601,7 +1585,7 @@ DSK_MBR10:
 	XOR	A		; SUCCESS
 	RET			; DONE
 ;
-;
+; CHECK DISK STATUS (PART OF BIOS COLD WARM BOOT)
 ;
 DSK_STATUS:
 #IFDEF PLTUNA
@@ -1619,21 +1603,21 @@ DSK_STATUS:
 	RET
 #ENDIF
 ;
-;
+; READ PHYSICAL SECTOR INTO BUFFER
 ;
 DSK_READ:
 	; SET B = FUNCTION: READ
 	LD	B,BF_DIOREAD
 	JR	DSK_IO
 ;
-;
+; WRITE PHYSICAL SECTOR FROM BUFFER
 ;
 DSK_WRITE:
 	; SET B = FUNCTION: WRITE
 	LD	B,BF_DIOWRITE
 	JR	DSK_IO
 ;
-;
+; READ/WRITE PHYSICAL SECTOR
 ;
 DSK_IO:
 	LD	A,(HSTUNIT)		; GET UNIT
@@ -1671,8 +1655,8 @@ LBA_IO:
 	LD	L,A
 	; ADD IN LBA OFFSET FOR PARTITION AND/OR SLICE
 	LD	BC,(HSTLBA)		; LBA OFFSET LOWORD
-	ADD	HL,BC	
-	EX	DE,HL	
+	ADD	HL,BC
+	EX	DE,HL
 	LD	BC,(HSTLBA+2)		; LBA OFFSET HIWORD
 	ADC	HL,BC
 	EX	DE,HL
@@ -1816,8 +1800,10 @@ DEFDRIVE	.DB	0		; DEFAULT DRIVE
 CCPBUF		.DW	0		; ADDRESS OF CCP BUF IN BIOS BANK
 MEDID		.DB	0		; TEMP STORAGE FOR MEDIA ID
 SLICE		.DB	0		; CURRENT SLICE
+#IFDEF PLTUNA
 SPS		.DW	0		; SECTORS PER SLICE
 CAP_REQ		.DW	0,0		; LBA CAP REQUIRED FOR SLICE
+#ENDIF
 STKSAV		.DW	0		; TEMP SAVED STACK POINTER
 ;
 #IFDEF PLTWBW
@@ -2596,7 +2582,7 @@ MD_INIT:
 	LD	A,(HCB + HCB_RAMD_BNKS)	; RAM DISK SIZE IN BANKS
 	LD	IX,DPB_RAM		; ADDRESS OF DPB
 	CALL	MD_INIT1		; FIX IT UP
-;	
+;
 	JR	MD_INIT4		; DONE
 ;
 MD_INIT1:
@@ -2747,10 +2733,12 @@ CLRRAM2:
 #ENDIF
 	LD	A,(BNKUSER)		; SWITCH BACK TO USER BANK
 	CALL	HB_BNKSEL		; SELECT BANK
+	EI				; INTERRUPTS OK AGAIN
 	CALL	NEWLINE2		; FORMATTING
 	LD	DE,STR_INITRAMDISK	; RAM DISK INIT MESSAGE
 	CALL	WRITESTR		; DISPLAY IT
-	LD	A,(BNKRAMD)		; SWITCH BACK TO FIRST BANK
+	DI				; DISABLE INTERRUPTS AGAIN
+	LD	A,(BNKRAMD)		; SWITCH BACK TO FIRST RAM BANK
 	CALL	HB_BNKSEL		; SELECT BANK
 	LD	HL,0			; SOURCE ADR FOR FILL
 	LD	BC,$2000		; LENGTH OF FILL IS 8K
diff --git a/Source/CPM22/Build.cmd b/Source/CPM22/Build.cmd
index 7eabae15..2122554b 100644
--- a/Source/CPM22/Build.cmd
+++ b/Source/CPM22/Build.cmd
@@ -38,6 +38,10 @@ copy /b os2ccp.bin + os3bdos.bin + ..\cbios\cbios_una.bin cpm_una.bin || exit /b
 copy /b loader.bin + cpm_wbw.bin cpm_wbw.sys || exit /b
 copy /b loader.bin + cpm_una.bin cpm_una.sys || exit /b
 
+rem Copy OS files to Binary directory
+copy cpm_wbw.sys ..\..\Binary\CPM22 || exit /b
+copy cpm_una.sys ..\..\Binary\CPM22 || exit /b
+
 goto :eof
 
 :asm
diff --git a/Source/CPM22/Makefile b/Source/CPM22/Makefile
index b1f37b0d..fa7492df 100644
--- a/Source/CPM22/Makefile
+++ b/Source/CPM22/Makefile
@@ -3,14 +3,20 @@ BINFILES = cpm_wbw.bin cpm_una.bin
 OBJECTS = CCP.bin BDOS.bin CCP22.bin BDOS22.bin OS2CCP.bin OS3BDOS.bin \
 	ccpb03.bin bdosb01.bin loader.bin $(SYSFILES) $(BINFILES)
 OTHERS = *.hex
+NOCOPY = cpm_wbw.bin cpm_una.bin \
+	CCP.bin BDOS.bin CCP22.bin BDOS22.bin OS2CCP.bin OS3BDOS.bin \
+	ccpb03.bin bdosb01.bin loader.bin
+
+DEST = ../../Binary/CPM22
 TOOLS = ../../Tools
+
 include $(TOOLS)/Makefile.inc
 
-%.sys: %.bin loader.bin
-	cat loader.bin $*.bin > $@
+%.sys: %.bin loader.bin
+	cat loader.bin $*.bin > $@
 
 cpm_una.bin: OS2CCP.bin OS3BDOS.bin ../CBIOS/cbios_una.bin
 	cat OS2CCP.bin OS3BDOS.bin ../CBIOS/cbios_una.bin > $@
-
+
 cpm_wbw.bin: OS2CCP.bin OS3BDOS.bin ../CBIOS/cbios_wbw.bin
 	cat OS2CCP.bin OS3BDOS.bin ../CBIOS/cbios_wbw.bin > $@
diff --git a/Source/CPM3/biosldr.z80 b/Source/CPM3/biosldr.z80
index 58e57cf0..9eacd755 100644
--- a/Source/CPM3/biosldr.z80
+++ b/Source/CPM3/biosldr.z80
@@ -4,11 +4,13 @@
 	maclib	cpm3.lib
 
 	cseg
-	
+
 	extrn	phex16, phex8
 	extrn	cin, cout
 	extrn	crlf, crlf2
-	
+
+        include	hbios.z80
+
 	debug	equ	false
 
 ; BIOS Jump vector.
@@ -65,7 +67,7 @@ boot:
 	; this routine to avoid issues.
 	ld	(stksav),sp
 	ld	sp,stack
-	
+
 	; Do the real work
 	call	boot0
 
@@ -78,6 +80,10 @@ boot0:
 	  if cmdline
 
 boot1:
+	;
+	; The following Code is the Entry Point for the Loader when
+	; it is built as a COM file. Typically CPMLDR.COM or ZPMLDR.COM
+	;
 	; Get disk unit from user
 	ld	de,msgunit		; disk unit prompt
 	call	writestr		; display on console
@@ -88,7 +94,7 @@ boot1:
 	sub	'0'			; convert to binary
 	ld	(unit),a		; save it
 	jr	c,selerr		; loop if below 0 entered
-	ld	bc,0F810h		; HBIOS, get disk unit count
+	ld	bc,BC_SYSGET_DIOCNT	; HBIOS, get disk unit count
 	call	0FFF0h			; do it, E := disk unit count
 	ld	a,(unit)		; get unit num back
 	cp	e			; compare to entry
@@ -118,7 +124,7 @@ selerr:
 
 boot2:
 	; Record unit & slice w/ HBIOS
-	ld	bc,0F9E0h		; HBIOS func: set boot info
+	ld	bc,BC_SYSSET_BOOTINFO	; HBIOS func: set boot info
 	ld	a,(unit)		; get unit
 	ld	d,a			; put in D
 	ld	a,(slice)		; get slice
@@ -128,8 +134,13 @@ boot2:
 
 	  else
 
+	;
+	; The following Code is the Entry Point for the Loader when
+	; it is built as a SYS file, and run from the System Track
+	;
+
 	; Get unit & slice from HBIOS
-	ld	bc,0F8E0h		; HBIOS func: get boot info
+	ld	bc,BC_SYSGET_BOOTINFO	; HBIOS func: get boot info
 	call	0FFF0h			; do it, D := boot unit, E: := slice
 	ld	a,d			; move unit to A
 	ld	(unit),a		; save it
@@ -138,103 +149,27 @@ boot2:
 
 	  endif
 
-	; Check that drive actually exists
-	ld	bc,0F810h		; HBIOS func: get disk count
-	call	0FFF0h			; do it, E=disk count
-	ld	a,(unit)		; get boot disk unit
-	cp	e			; compare to count
-	jp	nc,err_nodisk		; handle no disk err
-
 	; Sense media to determine media format
 	ld	a,(unit)		; Get boot unit
-	ld	c,a			; put in C
-	ld	b,18h			; HBIOS Media function
-	ld	e,1			; Enable media check/discovery
+	ld	d,a			; put in D
+	ld	a,(slice)		; get boot slice
+	ld	e,a			; put in E
+	ld	b,BF_EXTSLICE		; HBIOS FUNC: SLICE
 	call	0FFF0H			; HBIOS call
-	jp	nz,err_diskio		; handle error
-	ld	a,e			; resultant media id to accum
-	ld	(medid),a		; save media id
-	or	a			; set flags, 0 is no media
-	jp	z,err_diskio		; handle no media error
-
-	; Initialize slice start LBA & sectors per slice
-	ld	hl,0			; assume slice starts
-	ld	(lba),hl		; ... at LBA offset
-	ld	(lba+2),hl		; ... of zero
-	ld	hl,16640		; assume legacy value for
-	ld	(sps),hl		; ... sectors per slice
 
-	; If not hard disk, skip partition & slice stuff
-	ld	a,(medid)		; get media id
-	cp	4			; hard disk?
-	jr	nz,boot9		; if not, jump ahead
-
-	; Read MBR
-	ld	de,8000h		; LBA address zero
-	ld	hl,0			; ... to read first sector
-	ld	bc,mbrsec		; read into MBR buffer
-	ld	(dma),bc		; save
-	ld	b,1			; one sector
-	ld	a,(unit)		; get bootunit
-	ld	c,a			; put in C
-	call	diskread		; do it, no return on err
-
-	; Check signature
-	ld	hl,(mbrsec+1FEh)	; get signature
-	ld	a,l			; first byte
-	cp	055h			; should be $55
-	jr	nz,boot5		; if not, no part table
-	ld	a,h			; second byte
-	cp	0AAh			; should be $AA
-	jr	nz,boot5		; if not, no part table
-
-	; Search part table for CP/M entry (type 0x2E)
-	ld	b,4			; four entries in part table
-	ld	hl,mbrsec+1BEh+4	; offset of first part type
-boot3:
-	ld	a,(hl)			; get part type
-	cp	2Eh			; CP/M partition?
-	jr	z,boot4			; cool, grab the LBA offset
-	ld	de,16			; part table entry size
-	add	hl,de			; bump to next part type
-	djnz	boot3			; loop thru table
-	jr	boot5			; too bad, no CP/M partition
-
-boot4:
-	; Capture the starting LBA of the CP/M partition we found
-	ld	de,4			; LBA is 4 bytes after part type
-	add	hl,de			; point to it
-	ld	de,lba			; loc to store lba offset
-	ld	bc,4			; 4 bytes (32 bits)
-	ldir				; copy it
-
-	; For now, it is implied that a slice within a partition
-	; table will be in the "new" disk format.  So, we now
-	; adjust the sectors per slice and media id.
-
-	; Use new slice format sectors per slice value
-	ld	hl,16384		; new sectors per slice
-	ld	(sps),hl		; save it
-
-	; Update media id for new hard disk format
-	ld	a,10			; new media id
-	ld	(medid),a		; save it
-
-boot5:
-	; Adjust LBA offset based on target slice
-	ld	a,(slice)		; get boot slice, A is loop cnt
-	ld	hl,(lba)		; set DE:HL
-	ld	de,(lba+2)		; ... to starting LBA
-	ld	bc,(sps)		; sectors per slice
-boot6:
-	or	a			; set flags to check loop cntr
-	jr	z,boot8			; done if counter exhausted
-	add	hl,bc			; add one slice to low word
-	jr	nc,boot7		; check for carry
-	inc	de			; if so, bump high word
-boot7:
-	dec	a			; dec loop downcounter
-	jr	boot6			; and loop
+	; Check errors from the Function
+	cp	ERR_NOUNIT		; compare to no unit error
+	jp	z,err_nodisk		; handle no disk err
+	cp	ERR_NOMEDIA		; no media in the device
+	jp	z,err_nodisk		; handle the error
+	cp	ERR_RANGE		; slice is invalid
+	jp	z,err_noslice		; bad slice, handle err
+	or	a			; any other error
+	jp	nz,err_diskio		; handle as general IO error
+
+	; Initialize slice start LBA and Media ID
+	ld	a,c
+	ld	(medid),a		; save media id
 boot8:
 	ld	(lba),hl		; save new lba, low word
 	ld	(lba+2),de		; save new lba, high word
@@ -277,7 +212,7 @@ conin:
 conout:
 	ld	e,c			; output character in E
 	ld	bc,0180h		; unit 80h (console), func 1 = COUT
-	jp	0FFF0h	
+	jp	0FFF0h
 list:
 	ld	a,85H
 	halt
@@ -311,7 +246,7 @@ setdma:
 	call	crlf
 	call	phex16
 	pop	hl
-	
+
 	  endif
 
 	ld	(dma),bc
@@ -337,18 +272,18 @@ read:
 	call	phex16
 	ld	hl,(lba+0)
 	call	phex16
-	
+
 	  endif
 
 	; Check device type
 	ld	a,(unit)		; get unit
 	ld	c,a			; BIOS Disk Unit in C
-	ld	b,17h			; HBIOS DEVICE function
+	ld	b,BF_DIODEVICE		; HBIOS DEVICE function
 	rst	08			; Do it, D=device type
 	ld	a,d			; put in accum
 	cp	01h			; floppy?
 	jr	nz,read2		; if not, do LBA i/o
-	
+
 	; Floppy I/O
 	ld	de,(sect)		; sector -> de, head(d) becomes zero
 	ld	hl,(trk)		; track -> hl (low bit has head)
@@ -356,7 +291,7 @@ read:
 	rr	l			; ... and into carry
 	rl	d			; carry bit (head) into d
 	jr	read3			; do the disk i/o
-	
+
 	; LBA I/O
 read2:
 	ld	hl,(trk)		; get track
@@ -386,7 +321,7 @@ read3:
 	call	phex16
 	ex	de,hl
 	call	phex16
-	
+
 	  endif
 
 	; DE:HL has sector address to read (LBA or CHS)
@@ -401,14 +336,14 @@ diskread:
 
 	; Seek to requested sector in DE:HL
 	push	bc			; save unit & count
-	ld	b,012h			; HBIOS func: seek
+	ld	b,BF_DIOSEEK		; HBIOS func: seek
 	call	0FFF0h			; do it
 	pop	bc			; recover unit & count
 	jp	nz,err_diskio		; handle error
 
 	; Read sector(s) into buffer
 	ld	e,b			; transfer count
-	ld	b,013h			; HBIOS func: disk read
+	ld	b,BF_DIOREAD		; HBIOS func: disk read
 	ld	hl,(dma)		; read into info sec buffer
 	ld	a,(0FFE0h)		; get current bank
 	ld	d,a			; put in D
@@ -477,7 +412,7 @@ xmove:
 ;cin:
 ;	; Input character from console via HBIOS
 ;	ld	c,080H			; console unit to C
-;	ld	b,00H			; HBIOS func: input char
+;	ld	b,BF_CIOIN		; HBIOS func: input char
 ;	call	0FFF0H			; HBIOS reads character
 ;	ld	a,e			; To A for return
 ;	ret				; done
@@ -486,7 +421,7 @@ xmove:
 ;	; Output character to console via HBIOS
 ;	ld	e,a			; output char to E
 ;	ld	c,080H			; console unit to C
-;	ld	b,01H			; HBIOS func: output char
+;	ld	b,BF_CIOOUT		; HBIOS func: output char
 ;	jp	0FFF0H			; output & return
 
 writestr:
@@ -539,7 +474,7 @@ err:
 
 str_err_prefix	db	"\r\n\r\n*** ","$"
 str_err_nodisk	db	"Disk unit not available","$"
-str_err_noslice	db	"Disk unit does not support slices","$"
+str_err_noslice	db	"Slice not supported","$"
 str_err_diskio	db	"Disk I/O failure","$"
 str_err_sig	db	"No system image on disk","$"
 str_err_api	db	"HBIOS API failure","$"
@@ -728,7 +663,6 @@ dma	ds	2	; current DMA address
 
 medid	ds	1	; media id
 lba	ds	4	; current lba
-sps	ds	2	; sectors per slice
 
 	ds	64
 stack	equ	$
diff --git a/Source/CPM3/diskio.z80 b/Source/CPM3/diskio.z80
index c91caa4c..8705427e 100644
--- a/Source/CPM3/diskio.z80
+++ b/Source/CPM3/diskio.z80
@@ -35,9 +35,9 @@
 	extrn	?pderr		; print BIOS disk error header
 	extrn	?conin,?cono	; con in and out
 	extrn	?const		; get console status
-	
+
 	extrn	?bnkxlt
-	
+
 	extrn	phex16, phex8, cout, crlf, crlf2
 
 
@@ -45,15 +45,18 @@
 
 	maclib cpm3.lib
 
+    ; HBIOS related definitons
+
+	include	hbios.z80
+
     ; common control characters
 
 cr	equ 13
 lf	equ 10
 bell	equ 7
 
+    ; Extended Disk Parameter Headers (XDPHs)
 
-    ; Extended Disk Parameter Headers (XPDHs)
-    
     ; All DPH entries below are generic.  They are updated during
     ; boot to point to available HBIOS disk unit/slices dynamically.
 
@@ -186,7 +189,7 @@ dph15:	dph	0,dpb$max	; Real DPB filled in at disk login
 	dw	0, 0		; LBA Offset
 
 	cseg	; DPB must be resident
-	
+
 dpb$max:
 	dw  	64		; spt: sectors per track
 	db  	5		; bsh: block shift factor
@@ -288,7 +291,7 @@ dpb_fd144:	; 3.5" DS/HD Floppy Drive (1.44M)
 	db	2		; psh: 2 for 512 byte sectors
 	db	3		; phm: (512 / 128) - 1
 
-dpb_fd360:	; 5.25" DS/DD Floppy Drive (360K) 
+dpb_fd360:	; 5.25" DS/DD Floppy Drive (360K)
 	dw  	36		; spt: sectors per track
 	db  	4		; bsh: block shift factor
 	db  	15		; blm: block mask
@@ -370,7 +373,7 @@ dsk$init:
 
 dsk$init1:
 	; Get bank count of RAM/ROM disk
-	ld	b,0FAh			; HBIOS Peek Function
+	ld	b,BF_SYSPEEK		; HBIOS Peek Function
 	ld	a,(@hbbio)		; HBIOS bank id
 	ld	d,a			; ... goes in D
 	rst	08			; Call HBIOS, value in E
@@ -399,9 +402,9 @@ dsk$init3:
 	dec	hl			; subtract 1 for proper DSM value
 	ld	(ix+5),l		; save updated
 	ld	(ix+6),h		; ... DSM value
-	
+
 	ret
-	
+
 	;ld	a,(@rdrv)		; unit being initialized
 	;ld	hl,@bootdu
 	;cp	(hl)			; compare to boot unit
@@ -445,14 +448,13 @@ dsk$login:
 
 	;ret	; we have nothing to do in
 		;	simple single density only environment.
-		
-		
+
 	;ld	a,'L'
 	;call	cout
-	
+
 	ld	(curdph),de		; save working DPH
 	ex	de,hl			; DPH adr to HL
-	dec	hl			; point to slice 
+	dec	hl			; point to slice
 	ld	a,(hl)			; get slice
 	ld	(slice),a		; save it
 	dec	hl			; point to disk unit
@@ -460,194 +462,38 @@ dsk$login:
 	ld	(unit),a		; save it
 	inc	a			; 0FFh -> 000h
 	jp	z,err_ret		; bail out on no disk mapped here
-	
-	;call	media			; update DPH for media
-	;ret
 
 media:
 	; Set retry address
 	ld	hl,media
 	ld	(retry$adr),hl
-	
+
 	; Sense media to determine media format
-	ld	a,(unit)		; get disk unit
-	ld	c,a			; put in C
-	ld	b,18h			; HBIOS Media function
-	ld	e,1			; Enable media check/discovery
+	ld	b,BF_EXTSLICE		; HBIOS func: SLICE
+	ld	a,(unit)		; passing boot unit
+	ld	d,a
+	ld	a,(slice)		; and slice
+	ld	e,a
 	call	0FFF0H			; HBIOS call
-	jp	nz,err_diskio		; handle error
-	ld	a,e			; resultant media id to accum
-	ld	(medid),a		; save media id
-	or	a			; set flags, 0 is no media
-	jp	z,err_nodisk		; handle no media error
-	
-	; Initialize slice start LBA & sectors per slice
-	ld	hl,0			; assume slice starts
-	ld	(lba),hl		; ... at LBA offset
-	set	7,h			; ... of zero
-	ld	(lba+2),hl		; ... w/ LBA access
-
-	; Check device type
-	ld	a,(unit)		; get disk unit
-	ld	c,a			; put in C
-	ld	b,17h			; HBIOS func: report device info
-	call	0FFF0h			; get unit info, device type in D
-	ld	a,d			; device type -> A
-	cp	01h			; floppy?
-	jr	nz,media1		; if not, do LBA I/O
-	ld	hl,lba+3		; point to high order byte
-	res	7,(hl)			; switch from LBA -> CHS
-
-media1:
-	ld	hl,16640		; assume legacy value for
-	ld	(sps),hl		; ... sectors per slice
-
-	; If not hard disk, skip partition & slice stuff
-	ld	a,(medid)		; get media id
-	cp	4			; hard disk?
-	jp	nz,media9		; if not, jump ahead
-
-	; Read MBR
-	ld	de,8000h		; LBA address zero
-	ld	hl,0			; ... to read first sector
-	ld	bc,mbrsec		; read into MBR buffer
-	ld	(dma),bc		; save
-	ld	a,(0FFE0h)		; get current HBIOS bank
-	ld	(bank),a		; set DMA bank
-	ld	a,(unit)		; get bootunit
-	ld	c,a			; put in C
-	ld	b,013h			; HBIOS func: disk read
-	call	dsk$io			; do it
-	ret	nz			; abort on error
-
-	; Check signature
-	ld	hl,(mbrsec+1FEh)	; get signature
-	ld	a,l			; first byte
-	cp	055h			; should be $55
-	jr	nz,media5		; if not, no part table
-	ld	a,h			; second byte
-	cp	0AAh			; should be $AA
-	jr	nz,media5		; if not, no part table
-
-	; Search part table for CP/M entry (type 0x2E)
-	ld	b,4			; four entries in part table
-	ld	hl,mbrsec+1BEh+4	; offset of first part type
-media3:
-	ld	a,(hl)			; get part type
-	cp	2Eh			; CP/M partition?
-	jr	z,media4		; cool, grab the LBA offset
-	ld	de,16			; part table entry size
-	add	hl,de			; bump to next part type
-	djnz	media3			; loop thru table
-	jr	media5			; too bad, no CP/M partition
-
-media4:
-	; Capture the starting LBA of the CP/M partition we found
-	ld	de,4			; LBA is 4 bytes after part type
-	add	hl,de			; point to it
-	ld	de,lba			; loc to store lba offset
-	ld	bc,4			; 4 bytes (32 bits)
-	ldir				; copy it
-	
-	; Check that requested slice is "inside" partition.
-	; Slice size is exactly 16,384 sectors (8mb), so we can just
-	; right shift partition sector count by 14 bits
-	ld	e,(hl)		; HL points to first byte
-	inc	hl		; ... of 32 bit partition
-	ld	d,(hl)		; ... sector count,
-	inc	hl		; ... load sector count
-	push	de		; ... into DE:HL
-	ld	e,(hl)		; ...
-	inc	hl		; ...
-	ld	d,(hl)		; ...
-	pop	hl		; ... DE:HL = part size in sectors
-	ld	b,2		; DE = DE:HL >> 2  (tricky!)
-	call	rl32		; DE = slicecnt
-	ex	de,hl		; HL = slicecnt
-	ld	a,(slice)	; get target slice
-	ld	c,a		; put in C
-	ld	b,0		; BC := requested slice #
-	scf			; set carry!
-	sbc	hl,bc		; max slices - slice - 1
-	jp	c,err_noslice	; slice too high, error exit
-
-	; For now, it is implied that a slice within a partition
-	; table will be in the "new" disk format.  So, we now
-	; adjust the sectors per slice and media id.
-
-	; Use new slice format sectors per slice value
-	ld	hl,16384	; new sectors per slice
-	ld	(sps),hl	; save it
-
-	; Update media id for new hard disk format
-	ld	a,10		; new media id
-	ld	(medid),a	; save it
-
-media5:
-	; Adjust LBA offset based on target slice
-	ld	a,(slice)	; get slice, A is loop cnt
-	ld	hl,(lba)	; set DE:HL
-	ld	de,(lba+2)	; ... to starting LBA
-	ld	bc,(sps)	; sectors per slice
-	res	7,d		; clear lba mode bit
-boot6:
-	or	a		; set flags to check loop cntr
-	jr	z,boot8		; done if counter exhausted
-	add	hl,bc		; add one slice to low word
-	jr	nc,boot7	; check for carry
-	inc	de		; if so, bump high word
-boot7:
-	dec	a		; dec loop downcounter
-	jr	boot6		; and loop
-boot8:
-
-	; LBA offset of desired slice is now in DE:HL.
-	; Need to check if the slice is beyond capacity of media.
-	; If lba_off + sps >= dsk_cap, error!
-
-	; Save lba_off
-	push	de		; msw
-	push	hl		; lsw
-	
-	; Add sps to compute lba_req
-	ld	bc,(sps)	; sectors per slice
-	add	hl,bc		; add one slice to low word
-	jr	nc,dsk_mbr9	; check for carry
-	inc	de		; if so, bump high word
-dsk_mbr9:
-	; Save cap_req
-	ld	(cap_req),hl	; lsw
-	ld	(cap_req+2),de	; msw
-
-	; Get dsk_cap (de:hl)
-	ld	b,1Ah		; hbios disk capacity func
-	ld	a,(unit)	; disk unit number
-	ld	c,a		; ... into c
-	rst	08		; hbios call (de:hl = capacity)
-
-	; Save dsk_cap (de:hl)
-	push	de		; save dsk_cap (msw)
-	push	hl		; save dsk_cap (lsw)
-
-	; Check dsk_cap >= cap_req, cf set on overflow
-	; No need save actual result
-	or	a		; clear carry for sbc
-	pop	hl		; dsk_cap lsw
-	ld	de,(cap_req)	; cap_req lsw
-	sbc	hl,de		; dsk_cap - lba_req (lsw)
-	pop	hl		; dsk_cap msw
-	ld	de,(cap_req+2)	; cap_req msw
-	sbc	hl,de		; dsk_cap - lba_req (msw)
-
-	; Restore lba_off
-	pop	hl		; lsw
-	pop	de		; msw
-
-	; Abort on overflow with error!
-	jp	c,err_noslice	; slice too high, error exit
 
+	; Check errors from the Function
+	cp	ERR_NOUNIT		; compare to no unit error
+	jp	z,err_nodisk		; handle no disk err
+	cp	ERR_NOMEDIA		; no media in the device
+	jp	z,err_nodisk		; handle the error
+	cp	ERR_RANGE		; slice is invalid
+	jp	z,err_noslice		; bad slice, handle err
+	or	a			; any other error
+	jp	nz,err_diskio		; handle as general IO error
+
+	; Capture the Result
+	ld	a,c			; resultant media id to accum
+	ld	(medid),a		; save media id
 	; Finalize slice lba
+	BIT	7,B			; Is the floppy Disk Attribute Set
+	jr	nz,media8		; if it is Floppy; Skip Setting LBA
 	set	7,d			; set LBA access flag
+media8:
 	ld	(lba),hl		; save new lba, low word
 	ld	(lba+2),de		; save new lba, high word
 
@@ -698,23 +544,23 @@ media10:
 		; if necessary, then return an error code in <A>
 
 dsk$read:
-	ld	a,13h		; HBIOS disk read function
+	ld	a,BF_DIOREAD	; HBIOS disk read function
 	ld	(func),a	; save it
 	jr	dsk$rw		; common disk read/write code
 
 dsk$write:
-	ld	a,14h		; HBIOS disk write function
+	ld	a,BF_DIOWRITE	; HBIOS disk write function
 	ld	(func),a	; save it
 	jr	dsk$rw		; common disk read/write code
 
 dsk$rw:
 	; Common disk read/write routine
 	; Assumes func is set to HBIOS read or write
-	
+
 	; Set retry address
 	ld	hl,dsk$rw$retry
 	ld	(retry$adr),hl
-	
+
 	; Save XDPH address
 	ld	(curdph),de		; save to curdph
 
@@ -743,12 +589,12 @@ dsk$rw$retry:
 	rr	l			; ... and into carry
 	rl	d			; carry bit (head) into d
 	jr	dsk$rw9			; do the disk I/O
-	
+
 dsk$rw2:
 	; LBA I/O
 	push	de			; save hiword of LBA
 	push	hl			; save loword of LBA
-	
+
 	; Get track and shift into correct bits
 	ld	hl,(@trk)		; get track
 	ld	de,0			; clear hiword
@@ -767,7 +613,7 @@ dsk$rw2:
 	pop	bc			; lba offset hiword
 	adc	hl,bc			; add w/ carry to cur hiword
 	ex	de,hl			; swap back
-	
+
 dsk$rw9:
 	; DE:HL has sector address to read (LBA or CHS)
 	ld	bc,(@dma)		; get dma address
@@ -791,7 +637,7 @@ dsk$io:
 
 	; Seek to requested sector in DE:HL
 	push	bc			; save func & unit
-	ld	b,012h			; HBIOS func: seek
+	ld	b,BF_DIOSEEK		; HBIOS func: seek
 	call	0FFF0h			; do it
 	pop	bc			; recover func & unit
 	jp	nz,err_diskio		; handle error
@@ -824,7 +670,7 @@ mult8_loop:
 mult8_noadd:
 	djnz	mult8_loop
 	ret
-	
+
 rl32:
 	; Left shift DE:HL by B bits (B > 0)
 	or	a			; clear carry
@@ -834,7 +680,7 @@ rl32:
 	rl	d			; rotate D thru carry
 	djnz	rl32			; loop B times
 	ret				; done
-	
+
 cin$echo:	; get console input, echo it, and shift to upper case
 	call	?const			; check for char
 	or	a			; set flags
@@ -851,7 +697,7 @@ cin$echo1:
 	ret	c			; done if carry
 	sub	'a' - 'A'		; make upper case
 	ret				; and done
-	
+
 ;	call ?const ! ora a ! jz u$c1	; see if any char already struck
 ;	call ?conin ! jmp u$conin$echo	; yes, eat it and try again
 ;u$c1:
@@ -872,7 +718,7 @@ err_perm:
 	call	prt_err
 	jr	err_ret
 err_diskio:
-	cp	-10			; HBIOS read only error
+	cp	ERR_READONLY		; HBIOS read only error
 	jr	z,err_rdonly		; if so, handle special
 	ld	a,(@ermde)		; get error mode
 	cp	0FFh			; FFh means suppress
@@ -916,9 +762,6 @@ medid		db	0		; working media id value
 unit		db	0		; working disk unit num
 slice		db	0		; working slice num
 lba		dw	0,0		; working  lba
-sps		dw	0		; sectors per slice
-cap_req		dw	0,0		; lba cap required for slice
-mbrsec		ds	512		; MBR sector buffer
 dma		dw	0		; current DMA address
 bank		db	0		; HBIOS DMA bank
 func		db	0		; HBIOS function
diff --git a/Source/CPM3/hbios.z80 b/Source/CPM3/hbios.z80
new file mode 100644
index 00000000..36b6c683
--- /dev/null
+++ b/Source/CPM3/hbios.z80
@@ -0,0 +1,90 @@
+
+;
+BF_CIO		EQU	000h
+BF_CIOIN	EQU	BF_CIO + 0	; CHARACTER INPUT
+BF_CIOOUT	EQU	BF_CIO + 1	; CHARACTER OUTPUT
+BF_CIOIST	EQU	BF_CIO + 2	; CHARACTER INPUT STATUS
+BF_CIOOST	EQU	BF_CIO + 3	; CHARACTER OUTPUT STATUS
+BF_CIOINIT	EQU	BF_CIO + 4	; INIT/RESET DEVICE/LINE CONFIG
+BF_CIOQUERY	EQU	BF_CIO + 5	; REPORT DEVICE/LINE CONFIG
+BF_CIODEVICE	EQU	BF_CIO + 6	; REPORT DEVICE INFO
+;
+;
+BF_DIO		EQU	010h
+BF_DIOSTATUS	EQU	BF_DIO + 0	; DISK STATUS
+BF_DIORESET	EQU	BF_DIO + 1	; DISK RESET
+BF_DIOSEEK	EQU	BF_DIO + 2	; DISK SEEK
+BF_DIOREAD	EQU	BF_DIO + 3	; DISK READ SECTORS
+BF_DIOWRITE	EQU	BF_DIO + 4	; DISK WRITE SECTORS
+BF_DIOVERIFY	EQU	BF_DIO + 5	; DISK VERIFY SECTORS
+BF_DIOFORMAT	EQU	BF_DIO + 6	; DISK FORMAT TRACK
+BF_DIODEVICE	EQU	BF_DIO + 7	; DISK DEVICE INFO REPORT
+BF_DIOMEDIA	EQU	BF_DIO + 8	; DISK MEDIA REPORT
+BF_DIODEFMED	EQU	BF_DIO + 9	; DEFINE DISK MEDIA
+BF_DIOCAP	EQU	BF_DIO + 10	; DISK CAPACITY REPORT
+BF_DIOGEOM	EQU	BF_DIO + 11	; DISK GEOMETRY REPORT
+;
+BF_EXT		EQU	0E0h
+BF_EXTSLICE	EQU	BF_EXT + 0	; SLICE CALCULATION (WAS BF_SYSGET_DIOMED)
+;
+BF_SYS		EQU	0F0h
+BF_SYSRESET	EQU	BF_SYS + 0	; SOFT RESET HBIOS
+BF_SYSVER	EQU	BF_SYS + 1	; GET HBIOS VERSION
+BF_SYSSETBNK	EQU	BF_SYS + 2	; SET CURRENT BANK
+BF_SYSGETBNK	EQU	BF_SYS + 3	; GET CURRENT BANK
+BF_SYSSETCPY	EQU	BF_SYS + 4	; BANK MEMORY COPY SETUP
+BF_SYSBNKCPY	EQU	BF_SYS + 5	; BANK MEMORY COPY
+BF_SYSALLOC	EQU	BF_SYS + 6	; ALLOC HBIOS HEAP MEMORY
+BF_SYSFREE	EQU	BF_SYS + 7	; FREE HBIOS HEAP MEMORY
+BF_SYSGET	EQU	BF_SYS + 8	; GET HBIOS INFO
+BF_SYSSET	EQU	BF_SYS + 9	; SET HBIOS PARAMETERS
+BF_SYSPEEK	EQU	BF_SYS + 10	; GET A BYTE VALUE FROM ALT BANK
+BF_SYSPOKE	EQU	BF_SYS + 11	; SET A BYTE VALUE IN ALT BANK
+BF_SYSINT	EQU	BF_SYS + 12	; MANAGE INTERRUPT VECTORS
+;
+; 2 BYTE FUNCTION/SUBFUNCTION : BC_ => BIOS CALL -> LOAD TO BC REGISTER
+;
+BC_SYSGET_CIOCNT	EQU	0F800h	; GET CHAR UNIT COUNT
+BC_SYSGET_CIOFN		EQU	0F801h	; GET CIO UNIT FN/DATA ADR
+BC_SYSGET_DIOCNT	EQU	0F810h	; GET DISK UNIT COUNT
+BC_SYSGET_DIOFN		EQU	0F811h	; GET DIO UNIT FN/DATA ADR
+BC_SYSGET_RTCCNT	EQU	0F820h	; GET RTC UNIT COUNT
+BC_SYSGET_DSKYCNT	EQU	0F830h	; GET DSKY UNIT COUNT
+BC_SYSGET_VDACNT	EQU	0F840h	; GET VDA UNIT COUNT
+BC_SYSGET_VDAFN		EQU	0F841h	; GET VDA UNIT FN/DATA ADR
+BC_SYSGET_SNDCNT	EQU	0F850h	; GET VDA UNIT COUNT
+BC_SYSGET_SNDFN		EQU	0F851h	; GET SND UNIT FN/DATA ADR
+BC_SYSGET_TIMER		EQU	0F8D0h	; GET CURRENT TIMER VALUE
+BC_SYSGET_SECS		EQU	0F8D1h	; GET CURRENT SECONDS VALUE
+BC_SYSGET_BOOTINFO	EQU	0F8E0h	; GET BOOT INFORMATION
+BC_SYSGET_CPUINFO	EQU	0F8F0h	; GET CPU INFORMATION
+BC_SYSGET_MEMINFO	EQU	0F8F1h	; GET MEMORY CAPACTITY INFO
+BC_SYSGET_BNKINFO	EQU	0F8F2h	; GET BANK ASSIGNMENT INFO
+BC_SYSGET_CPUSPD	EQU	0F8F3h	; GET CLOCK SPEED & WAIT STATES
+BC_SYSGET_PANEL		EQU	0F8F4h	; GET FRONT PANEL SWITCHES VAL
+BC_SYSGET_APPBNKS	EQU	0F8F5h	; GET APP BANK INFORMATION
+;
+BC_SYSSET_TIMER		EQU	0F9D0h	; SET TIMER VALUE
+BC_SYSSET_SECS		EQU	0F9D1h	; SET SECONDS VALUE
+BC_SYSSET_BOOTINFO	EQU	0F9E0h	; SET BOOT INFORMATION
+BC_SYSSET_CPUSPD	EQU	0F9F3h	; SET CLOCK SPEED & WAIT STATES
+BC_SYSSET_PANEL		EQU	0F9F4h	; SET FRONT PANEL LEDS
+;
+;
+;
+ERR_NONE	EQU	0		; SUCCESS
+;
+ERR_UNDEF	EQU	-1		; UNDEFINED ERROR
+ERR_NOTIMPL	EQU	-2		; FUNCTION NOT IMPLEMENTED
+ERR_NOFUNC	EQU	-3		; INVALID FUNCTION
+ERR_NOUNIT	EQU	-4		; INVALID UNIT NUMBER
+ERR_NOMEM	EQU	-5		; OUT OF MEMORY
+ERR_RANGE	EQU	-6		; PARAMETER OUT OF RANGE
+ERR_NOMEDIA	EQU	-7		; MEDIA NOT PRESENT
+ERR_NOHW	EQU	-8		; HARDWARE NOT PRESENT
+ERR_IO		EQU	-9		; I/O ERROR
+ERR_READONLY	EQU	-10		; WRITE REQUEST TO READ-ONLY MEDIA
+ERR_TIMEOUT	EQU	-11		; DEVICE TIMEOUT
+ERR_BADCFG	EQU	-12		; INVALID CONFIGURATION
+ERR_INTERNAL	EQU	-13		; INTERNAL ERROR
+
diff --git a/Source/Doc/Applications.md b/Source/Doc/Applications.md
index a972b53e..fbac6e99 100644
--- a/Source/Doc/Applications.md
+++ b/Source/Doc/Applications.md
@@ -1,17 +1,873 @@
-$define{doc_title}{Applications}$
+$define{doc_title}{Applications Guide}$
+$define{doc_author}{MartinR \& Phillip Summers}$
+$define{doc_authmail}{}$
 $include{"Book.h"}$
 
 # Summary
 
-RomWBW includes a small suite of custom applications to maximize the
-features available. In general, these applications are operating
-system agnostic -- they run under any of the included operating
+RomWBW is supplied with a suite of software applications that enhance
+the use of the system.  Some of these applications have been written
+entirely from scratch for RomWBW.  Others are pre-existing software
+that has been customized for the RomWBW environment.  This document
+serves as a reference for these RomWBW-specific applications.
+
+The primary usage documentation for RomWBW is the $doc_user$.  It is assumed
+that the reader is generally familiar with this document.
+
+RomWBW also includes many generic software applications that have not
+been modified for RomWBW (e.g., MSBASIC).  These generic applications
+are not documented here.  Please refer to the application specific
+documentation for these generic applications.  The documentation for
+some of these generic applications is included in the Doc folder of
+the RomWBW distribution.
+
+The applications described in this document fall into two general
+categories.
+
+1. **ROM Applications** are software applications that are loaded
+   from the the ROM memory of your RomWBW system.
+
+2. **CP/M Applications** are software applications that are loaded
+   from disk using a previously loaded CP/M (or CP/M like) operating
+   system using its command line.
+
+Note that some applications are available in both forms.  For example,
+Microsoft BASIC is available as a ROM application and as an application
+that runs under CP/M.  Only the ROM variant is documented here because
+the CP/M variant is not RomWBW-specific.
+
+You will see that two of the RomWBW operating systems are included
+here as ROM Applications.  Although operating systems are normally
+loaded from disk, RomWBW does include a way to launch CP/M 2.2 and
+Z-System directly from ROM.
+
+Most RomWBW systems include a ROM disk.  A running operating system
+can load applications from the ROM disk just like a floppy or hard
+disk.  Applications loaded from the ROM disk by CP/M are considered
+to be CP/M applications, **not** ROM applications.
+
+`\clearpage`{=latex}
+
+# Boot Menu
+
+The system start-up process is described in some detail in the RomWBW 
+User Guide, and for the sake of completeness there is some overlap here.
+
+When a RomWBW system is started the user is presented with a sign-on 
+message at the default console detailing the RomWBW version and build 
+date. The system follows this with the list of hardware that it has 
+discovered, a list of devices and the system units assigned to them, 
+before finally inviting the to select a boot device with the prompt:
+
+```
+Boot [H=Help]:
+```
+
+At this point, the user may specify a unit, optionally with a slice,
+to boot from. Note that it is not possible to boot from from the serial (ASCI)
+or memory disk (MD) devices.
+
+Alternatively the user may select one of the built-in Boot Loader commands. 
+A menu of  which may be displayed by pressing the H or ? keys (for Help). 
+Furthermore, a ROM application may also be started from this prompt.
+
+This start-up process is described in some detailed in the RomWBW User Guide,
+and there is some overlap here.
+
+## Help
+
+After pressing H or ? at the boot prompt the user will be presented with 
+the following list of available commands:
+
+```
+L           - List ROM Applications
+D           - Device Inventory
+R           - Reboot System
+I <u> [<c>] - Set Console Interface/Baud code
+V [<n>]     - View/Set HBIOS Diagnostic Verbosity
+<u>[.<s>]   - Boot Disk Unit/Slice
+```
+
+The function performed by each command is described below:
+
+L:
+
+:  Lists the applications and operating systems that are built into the 
+   RomWBW ROM - e.g., low-level monitor utility, CP/M, or BASIC.
+
+
+D:
+
+:  Displays the list of system devices that was first displayed when the
+   system was started.
+
+
+R:
+
+:  Will restart the system. Note that this does not reset hardware devices
+   in the same way that power-on or pressing the reset button would.
+
+
+I:
+
+:  Allows the user to select the interface connected to the console, and 
+   optionally the Baud rate. This could be used to allow the system to be 
+   operated from a second console.
+
+V:
+
+:  Enables the display of invalid RomWBW HBIOS API calls.  This option
+   is very unlikely to be used by a user and is used for development
+   purposes.
+
+And, finally, the system may be booted by specifying the unit number, 
+and optional slice, separated by a period('.'), of where the disk operating
+system software is located - eg 2, 4.1, 5.3
+
+Alternatively, a RomWBW ROM application may be started by pressing the appropriate
+key from the applications menu, shown in the following section.
+
+## List ROM Applications
+
+If the user presses the L key at the Boot Loader prompt then the system will
+display the list of ROM applications that are built into RomWBW. If a command 
+letter is known, then it may be entered directly at the prompt rather than
+first displaying the menu.
+
+The ROM applications available from the boot prompt are:
+
+```
+M: Monitor
+C: CP/M 2.2
+Z: Z-System
+B: BASIC
+T: Tasty BASIC
+F: Forth
+P: Play a Game
+N: Network Boot
+X: XModem Flash Updater
+U: User App
+```
+
+Each of these will now be described in greater detail.
+
+# ROM Applications
+
+## Monitor
+
+The Monitor program is a low-level utility that can be used 
+for testing and programming. It allows programs to be entered,
+memory to be examined and modified, and input/output devices to
+be read or written to.
+
+It's key advantage is that is available at boot up. 
+
+Its key disadvantages are that code cannot be entered in assembly 
+language and there is no ability to save to persistent storage (disks).
+
+The available memory area for programming is `0100h-EDFFh`.
+The following areas are reserved:
+
+Memory Area | Function
+------------|-----------------------------------
+`0000-00FFh`| Jump and restart (RST) vectors
+`EE00-FDFFh`| Monitor
+`FE00-FFFFh`| HBIOS proxy
+
+The monitor uses a prompt in the format of `xx>` where xx is the
+RomWBW bank id number.  For example, the prompt may look like this
+and means that Bank Id 0x8E is currently mapped into the low 32K
+of processor memory.
+
+`8E>`
+
+Please refer to Section 4 of the $doc_sys# for a description of the
+RomWBW Bank Id and how it relates to the physical bank of memory being
+mapped to the lower 32K of the processor.  The method of assigning
+banks for specific RomWBW functions is also described.
+
+Commands can be entered at the command prompt.
+Automatic case conversion takes place on command entry and all 
+numeric arguments are expected to be in hex format.
+
+The Monitor allows access to all memory locations but ROM and
+Flash memory cannot be written to.  At startup, the Monitor will
+select the default "User" bank.  The `S` command is provided to
+allow selecting alternate banks.
+
+There now follows a more detailed guide to using the RomWBW
+Monitor program:
+
+### Command Summary
+
+**`?`** - Will display a summary of the available commands.
+
+```
+Monitor Commands (all values in hex):
+B                    - Boot system
+D xxxx [yyyy]        - Dump memory from xxxx to yyyy
+F xxxx yyyy zz       - Fill memory from xxxx to yyyy with zz
+H                    - Halt system
+I xxxx               - Input from port xxxx
+K                    - Keyboard echo
+L                    - Load Intel hex data
+M xxxx yyyy zzzz     - Move memory block xxxx-yyyy to zzzz
+O xxxx yy            - Output value yy to port xxxx
+P xxxx               - Program RAM at address xxxx
+R xxxx [[yy] [zzzz]] - Run code at address xxxx
+                       Pass yy and zzzz to register A and BC
+S xx                 - Set bank to xx
+U                    - Set bank to previous bank
+T xxxx	             - X-modem transfer to memory location xxxx
+X                    - Exit monitor
+```
+
+### Cold Boot
+
+**`B`** - Performs a cold boot of the RomWBW system. A complete
+re-initialization of the system is performed and the system
+returns to the Boot Loader prompt.
+
+### Dump Memory
+
+**`D xxxx [yyyy]`** - Dump memory from hex location xxxx to yyyy
+on the screen as lines of 16 hexadecimal bytes with their
+ASCII equivalents (if within a set range, else a '.' is
+printed). If the end address is omitted then 256 bytes are
+displayed. 
+
+A good tool to see where code is located, check
+for version id, obtain details for chip configurations and
+execution paths.
+
+Example: `D 100 1FF`
+
+```
+0100: 10 0B 01 5A 33 45 4E 56 01 00 00 2A 06 00 F9 11  ...Z3ENV...*..ù.
+0110: DE 38 37 ED 52 4D 44 0B 6B 62 13 36 00 ED B0 21  Þ87íRMD.kb.6.í°!
+0120: 7D 32 E5 21 80 00 4E 23 06 00 09 36 00 21 81 00  }2å!..N#...6.!..
+0130: E5 CD 6C 1F C1 C1 E5 2A C9 8C E5 CD 45 05 E5 CD  åÍl.ÁÁå*É.åÍE.åÍ
+0140: 59 1F C3 00 00 C3 AE 01 C3 51 04 C3 4C 02 C3 57  Y.Ã..î.ÃQ.ÃL.ÃW
+0150: 02 C3 64 02 C3 75 02 C3 88 02 C3 B2 03 C3 0D 04  .Ãd.Ãu.Ã..ò.Ã..
+0160: C3 19 04 C3 22 04 C3 2A 04 C3 35 04 C3 40 04 C3  Ã..Ã".Ã*.Ã5.Ã@.Ã
+0170: 48 04 C3 50 04 C3 50 04 C3 50 04 C3 8F 02 C3 93  H.ÃP.ÃP.ÃP.Ã..Ã.
+0180: 02 C3 94 02 C3 95 02 C3 85 04 C3 C7 04 C3 D1 01  .Ã..Ã..Ã..ÃÇ.ÃÑ.
+0190: C3 48 02 C3 E7 04 C3 56 03 C3 D0 01 C3 D0 01 C3  ÃH.Ãç.ÃV.ÃÐ.ÃÐ.Ã
+01A0: D0 01 C3 D0 01 C3 D0 01 C3 D0 01 01 02 01 CD 6B  Ð.ÃÐ.ÃÐ.ÃÐ....Ík
+01B0: 04 54 68 69 73 20 66 75 6E 63 74 69 6F 6E 20 6E  .This function n
+01C0: 6F 74 20 73 75 70 70 6F 72 74 65 64 2E 0D 0A 00  ot supported....
+01D0: C9 3E FF 32 3C 00 3A 5D 00 FE 20 28 14 D6 30 32  É>ÿ2<.:].þ (.Ö02
+01E0: AB 01 32 AD 01 3A 5E 00 FE 20 28 05 D6 30 32 AC  «.2­.:^.þ (.Ö02¬
+01F0: 01 C5 01 F0 F8 CF E5 26 00 0E 0A CD 39 02 7D 3C  .Å.ðøÏå&...Í9.}<
+```
+
+### Fill Memory
+
+**`F xxxx yyyy zz`** - Fill memory from hex xxxx to yyyy with
+a single value of zz over the full range. The Dump command
+can be used to confirm that the fill completed as expected. A
+good way to zero out memory areas before writing machine data
+for debug purposes.
+
+### Halt System
+
+**`H`** - Halt system. A Z80 HALT instruction is executed. The
+system remains in the halt state until the system is
+physically rebooted. Interrupts will not restart the
+system. On systems that support a HALT status LED, the
+LED will be illuminated.
+
+### Input from Port
+
+**`I xxxx`** - Input data from port xxxx and display to the screen.
+This command is used to read values from hardware I/O ports
+and display the contents in hexadecimal. 
+
+### Keyboard Echo
+
+**`K`** - Echo any key-presses from the terminal. Press 'ESC' key
+to quit. This facility provides that any key stroke sent to
+the computer will be echoed back to the terminal. File down
+loads will be echoed as well while this facility is ‘on’.
+
+### Load Hex
+
+**`L`** - Load a Intel Hex data via the terminal program.
+The load address is defined in the hex file of the
+assembled code.
+
+The terminal emulator program should be configured to
+give a delay at the end of each line to allow the monitor
+enough time to parse the line and move the data to memory.
+
+Keep in mind that this will be transient unless the
+system supports battery backed memory. Saving to memory drive 
+is not supported.
+
+### Move Memory
+
+**`M xxxx yyyy zzzz`** - Move hex memory block xxxx to yyyy to
+memory starting at hex location zzzz. Care should be taken
+to insure that there is enough memory at the destination so
+that code does not get over-written or memory wrapped around.
+
+### Output to Port
+
+**`O xxxx yy`** - Output data byte xx to port xxxx. This command is
+used to send hexadecimal values to hardware I/O ports to
+verify their operation and is the companion to the I operation.
+Use clip leaded LEDs to confirm the data written.
+
+### Program Memory
+
+**`P xxxx`** - Program memory location xxxx. This routine will
+allow you to program a hexadecimal value 'into memory starting
+at location xxxx. Press 'Enter' on a blank line to
+return to the Monitor prompt.
+
+The limitation around programming memory is that it must be 
+entered in hexadecimal. An alternative is to use the L command
+to load a program that has been assembled to a hex file on the
+remote computer.
+
+An excellent online resource for looking up opcodes for entry
+can be found here: <https://clrhome.org/table>.
+
+### Run Program
+
+**`R xxxx [[yy] [zzzz]]`** - Run program at location xxxx. If optional
+arguments yy and zzzz are entered they are loaded into the
+A and BC register respectively. The return address of the
+Monitor is saved on the stack so the program can return
+to the monitor. On return to the monitor, the contents of
+the A, HL, DE and BC registers are displayed.
+
+### Set Bank 
+
+**`S xx`** - Set the physical memory bank to the RomWBW Bank Id
+indicated by xx.  Memory addresses
+0x0000-0x7FFF (i.e. bottom 32k) are affected. Because the
+interrupt vectors are stored in the bottom page of this
+range, this function is disabled when interrupt mode 1 is
+being used (IM1). Interrupt mode 2 is not affected as the
+associated jump vectors are stored in high memory.
+
+Changing the bank also impacts the restart vectors (RST),
+so executing code that calls the HBIOS using the `RST 08`
+assembly code will not work.
+
+The monitor stack resides in high memory and is not affected
+but any code that changes the stack to low memory will be
+affected.
+
+The U command may be used to undo the change and return the
+selected memory bank back to the previously selected one.
+
+Section 4 of the $doc_sys$ provides detail on how Bank Ids map to the
+physical memory of the system and also how specific banks are utilized
+by RomWBW.
+
+### Undo Bank
+
+**`U`** - Change the bank in memory back to the previously selected bank.
+This command should be used in conjunction with the S command.
+
+### X-Modem Transfer
+
+**`T xxxx`** - Receive an X-modem file transfer and load it into
+memory starting at location xxxx. 
+
+128 byte blocks and checksum mode is the only supported 
+protocol.
+
+### Exit Monitor
+
+**`X`** - Exit the monitor program back to the main boot menu.
+
+## CP/M 2.2
+
+This option will boot the CP/M 2.2 disk operating system 
+from an image contained within the ROM.  Please refer to the
+CPM User Manual in the Doc/CPM folder of the distribution for
+CP/M usage.  There are also many online resources. 
+
+During the build process the system will create a ROM disk 
+containing a number of curated CP/M applications, and also a 
+RAM drive. The capacity of each will depend upon the size 
+of the ROM and RAM available to the system. A more complete
+set of utilities are provided within the disk image files 
+provided as part of RomWBW.
+
+A number of the applications provided are generic to 
+CP/M, while others rely on particular hardware or 
+aspects of RomWBW itself.
+
+Those that are written specific to RomWBW include: ASSIGN,
+CPUSPD, FDU, FORMAT, FLASH, FDISK80, MODE, REBOOT, RTC, SYSCOPY, 
+TALK, TIMER, XM, and COPYSL.
+
+The CP/M utilities supplied with RomWBW warrant more detailed descriptions, 
+and so are described in some detail in their own section
+of this user guide. In summary they provide the initial capability 
+to manage and update your RomWBW system, to create other
+bootable media (hardware dependent) and to write/debug 
+code using assembler and BASIC.
+
+## Z-System
+
+Z-System is a complete alternative, but entirely compatible, disk 
+operating system to CP/M. 
+
+Z-System is comprised of ZSDOS 1.1 which is a
+replacement for CP/M's Basic Disk Operating System (BDOS), and ZCPR which 
+is a replacement for the Console Command Processor (CCP). Either or both 
+may be used, although using both together will allow ZCPR to make use of 
+specific ZSDOS features.
+
+Documentation for Z-System may be found in the Doc/CPM folder of the
+RomWBW distribution and the reader is referred to those.
+
+## BASIC
+
+For those who are not familiar with BASIC, it stands for Beginners All Purpose Symbolic
+Instruction Code. 
+
+RomWBW contains two versions of ROM BASIC, a full implementation and a "tiny" BASIC.
+
+The full implementation is a version of Microsoft BASIC from the NASCOM Computer.
+
+A comprehensive instruction manual is available in the Doc/Contrib directory.
+
+### RomWBW specific features
+
+- Sound
+- Graphics
+- Terminal Support
+
+### RomWBW unsupported features
+
+-  Cassette loading
+-  Cassette saving
+
+## TastyBASIC
+
+TastyBASIC offers a minimal implementation of BASIC that is only 2304 
+bytes in size. It originates from Li-Chen Wang's Palo Alto Tiny BASIC 
+from around 1976. It's small size is suited the tiny memory capacities of 
+the time. This implementation is by Dimitri Theulings and his original 
+source can be found at <https://github.com/dimitrit/tastybasic>.
+
+### Features / Limitations
+
+- Integer arithmetic, numbers -32767 to 32767
+- Singles letter variables A-Z
+- 1-dimensional array support
+- Strings are not supported  
+
+### Direct Commands
+
+- `LIST`,`RUN`, `NEW`, `CLEAR`, `BYE`
+
+### Statements
+
+- `LET`, `IF`, `GOTO`, `GOSUB RETURN`, `REM`, `FOR TO NEXT STEP`, `INPUT`, `PRINT`, `POKE`, `END`
+
+### Functions
+
+- `PEEK`, `RND`, `ABS`, `USR`, `SIZE`
+
+### Operators
+
+- `>=`, `#`, `>`, `=`, `<=`, `<`
+
+- Operator precedence is supported.
+
+Type ***BYE*** to return to the boot menu.
+
+## FORTH
+
+CamelForth is the version of Forth included as part of the boot ROM in 
+RomWBW. It has been converted from the Z80 CP/M version published at 
+<https://www.camelforth.com/page.php?5>. The 
+author is Brad Rodriguez who is a prolific Forth enthusiast, whose work 
+can be found here: <https://www.bradrodriguez/papers/index.html>.
+
+For those are who are not familiar with Forth, I recommend the
+wikipedia article <https://en.wikipedia.org/wiki/Forth_(programming_language)>
+and the Forth Interest Group website <https://www.forth.org/>.
+
+### Important things to know
+
+Forth is case sensitive.
+
+To exit back to the boot loader type ***bye***
+
+To get a list of available words type ***WORDS***
+
+To reset Forth to its initial state type ***COLD***
+
+Most of the code you find on the internet will not run unless modified or additional Forth
+words are added to the dictionary.
+
+This implementation does not support loading or saving of programs. All programs
+need to be typed in. Additionally, screen editing and code blocks are not supported.
+
+### Structure of Forth source files
+
+File          | Description
+--------------|-----------------------------
+camel80.azm   | Code Primitives
+ camel80d.azm | CPU Dependencies
+ camel80h.azm | High Level words
+ camel80r.azm | RomWBW additions
+glosshi.txt   | Glossary of high level words
+glosslo.txt   | Glossary of low level words
+glossr.txt    | Glossary of RomWBW additions
+
+### RomWBW Additions
+
+Extensions and changes to this implementation compared to the original distribution are:
+
+- The source code has been converted from Z80mr assembler to Hector Peraza's zsm.
+
+- An additional file camel80r.azm has been added for including additional words to 
+  the dictionary at build time. However, as currently configured there is very little space
+  allocated for addition words. Exceeding the allocated ROM space will generate an error
+  message when building.
+
+- James Bowman's double precision words have been added from his RC2014 version:
+  <https://github.com/jamesbowman/camelforth-z80>.
+
+Word    | Syntax                     | Description
+--------|----------------------------|---------------------------------
+D+	| d1 d2 -- d1+d2             | Add double numbers
+2>R	| d --                       | 2 to R
+2R>	| d --                       | fetch 2 from R
+M*/	| d1 n2 u3 --  d=(d1*n2)/u3  | double precision mult. div
+SVC	| hl de bc n -- hl de bc af  | Execute a RomWBW function
+P!	| n p --                     | Write a byte to a I/O port
+P@      | p -- n                     | Read a byte from and I/O port
+
+## Play a Game
+
+### 2048
+
+2048 is a puzzle game that can be both mindless and challenging. It
+appears deceptively simple but failure can creep up on you suddenly.
+
+It requires an ANSI/VT-100 compatible colour terminal to play.
+
+2048 is like a sliding puzzle game except the puzzle tiles are 
+numbers instead of pictures. Instead of moving a single tile all 
+tiles are moved simultaneously in the same direction. Where two 
+tiles of the same number collide, they are reduced to one tile with
+the combined value. After every move a new tile is added with
+a starting value of 2. 
+
+The goal is to create a tile of 2048 before all tile locations are
+occupied. Reaching the highest points score, which is the sum of all
+the tiles is a secondary goal. The game will automatically end when 
+there are no more possible moves.
+
+Play consists of entering a direction to move. Directions can be entered
+using any of three different keyboard direction sets.
+
+```
+Direction | Keys
+----------|----------
+Up        | w ^E 8
+Down      | s ^X 2
+Left      | a ^S 4
+Right     | d ^D 6
+```
+
+The puzzle board is a 4x4 grid. At start, the grid will be populated
+with two 2 tiles. An example game sequence is shown below with new
+tiles to the game shown in brackets.
+
+```
+Start             Move 1 - Up       Move 2 - Left     Move 3 - Left
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+|   |   |   |(2)| |   |   |   | 4 | | 4 |   |   |   | | 4 |   |   |   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+|   |   |   |   | |   |   |   |   | |   |   |   |(4)| | 4 |   |   |   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+|   |   |   |(2)| |   |   |   |   | |   |   |   |   | |   |   |   |   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+|   |   |   |   | |   |   |(2)|   | | 2 |   |   |   | | 2 |   |(2)|   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+
+Move 4 - Left     Move 5 - Up       Move 6 - Right    Move 7 - Up
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+| 4 |   |   |   | | 8 |   |   | 4 | |   |   | 8 | 4 | |   |   | 8 | 8 |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+| 4 |   |   |(4)| | 4 |   |   |   | |   |   |   | 4 | |   |   |   | 2 |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+|   |   |   |   | |   |   |   |   | |   |   |   |   | |   |   |   |   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+| 4 |   |   |   | |(2)|   |   |   | |(2)|   |   | 2 | |(2)|   |   |   |
++---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
+```
+
+This is how I lost this game:
+
+```
++---+---+---+---+
+| 4 | 2 | 16| 4 |
++---+---+---+---+
+| 32| 64| 8 | 2 |
++---+---+---+---+
+| 4 | 8 |128| 32|
++---+---+---+---+
+|(2)| 16| 8 | 4 |
++---+---+---+---+
+```
+
+Press Q at any time to bring up the option to Quit or Restart the game.
+
+## Network Boot
+
+If your RomWBW system is equipped with an RCBus MT011 module, it is 
+possible to boot into CP/M 2.2 directly from a CP/NET network server. 
+This means that the operating system will be loaded directly from the 
+network server and all of your drive letters will be provided by the 
+network server.
+
+This function requires substantial knowledge of CP/NET and it's 
+implementation within RomWBW.  Section 10 of the $doc_user$ provides 
+complete instructions for setting up a CP/NET based network under RomWBW
+including a section on network booting.
+
+## Xmodem Flash Updater
+
+The RomWBW Xmodem flash updater provides the capability to update RomWBW from the boot loader using  an x-modem file transfer. It offers similar capabilities to Will Sowerbutts FLASH4 utility except that the flashing process occurs during the file transfer. 
+
+These are the key differences between the two methods are:
+
+Xmodem Flash Updater            | FLASH.COM (aka FLASH4)
+--------------------------------|-----------------
+Available from the boot loader   | Well proven and tested
+Xmodem transfer is integrated    | Wider range of supported chips and hardware
+Integrated checksum utilities    | Wider range of supported platforms
+Capability to copy a ROM image   | Only reprograms sectors that have changed
+More convenient one step process | Ability save and verify ROM images
+No intermediate storage required | Progress display while flashing
+.                                | Displays chip identification information
+.                                | Faster file transfer
+                                 
+The major disadvantages of the Updater is that it is new and relatively untested. There is the risk that a failed transfer will result in a partially flashed and unbootable ROM. There are some limitations on serial transfer speeds.
+ 
+The updater utility was initially intended to support the Retrobrew SBC-V2-005 platform using Atmel 39SF040 flash chips but has now been extended to be more generic in operation.
+
+Supported flash chips are 
+39SF040, 29F040,  AT49F040, AT29C040, M29F040 , MX29F040,  A29010B, A29040B
+
+The Atmel 39SF040 chip is recommended as it can erase and write 4Kb sectors. Other chips require the whole chip to be erased.
+
+### Usage
+
+In most cases, completing a ROM update is a simple as:
+
+1. Booting to the boot loader prompt
+2. Selecting option X - Xmodem Flash Updater
+3. Selecting option U - Update
+4. Initiating an X-modem transfer of your ROM image on your console device
+5. Selecting option R - Reboot
+
+If your console device is not able to transfer a ROM image i.e. your console is a VDU then you will have to use the console options to identify which character-input/output device is to be used as the serial device for transfer.
+
+When your console is the serial device used for the transfer, no progress information is displayed as this would disrupt the x-modem file transfer. If you use an alternate character-input/output devices as the serial device for the transfer then progress information will be displayed on the console device.
+
+Due to different platform processor speeds,  serials speeds and flow control capabilities the default console or serial device speed may need to be reduced for a successful transfer and flash to occur. The **Set Console Interface/Baud code** option at the Boot Loader can be used to change the speed if required. Additionally, the Updater has options to set to and revert from a recommended speed. 
+
+See the RomWBW Applications guide for additional information on performing upgrades.
+
+### Console Options
+Option ( C ) - Set Console Device
+
+Option ( S ) - Set Serial Device
+
+By default the updater assumes that the current console is a serial device and that the ROM file to be flashed will also be transferred across this device, so the Console and Serial device are both the same.
+
+Either device can be can be change to another character-input/output device but the updater will always expect to receive the x-modem transfer on the **Serial Device**
+
+The advantage of transferring on a different device to the console is that progress information can be displayed during the transfer.
+
+Option ( > ) - Set Recommended Baud Rate
+
+Option ( < ) - Revert to Original Baud Rate
+
+### Programming options
+
+Option ( U ) - Begin Update
+
+The will begin the update process. The updater will expect to start receiving
+an x-modem file on the serial device unit.
+
+X-modem sends the file in packets of 128 bytes. The updater will cache 32
+packets which is 1 flash sector and then write that sector to the
+flash device.
+
+If using separate console, bank and sector progress information will shown
+
+```
+BANK 00 s00 s01 s02 s03 s04 s05 s06 s06 s07
+BANK 01 s00 s01 s02 s03 s04 s05 s06 s06 s07
+BANK 02 s00 s01 s02 s03 s04 s05 s06 s06 s07 etc
+```
+
+The x-modem file transfer protocol does not provide any filename or size
+information for the transfer so the updater does not perform any checks
+on the file suitability.
+
+The updater expects the file size to be a multiple of 4 kilobytes and
+will write all data received to the flash device. A system update
+file (128kb .img) or complete ROM can be received and written (512kb or
+1024kb .rom)
+
+If the update fails it is recommended that you retry before rebooting or
+exiting to the Boot loader as your machine may not be bootable.
+
+Option ( D ) - Duplicate flash #1 to flash #2
+ 
+This option will make a copy of flash #1 onto flash #2. The purpose of this is to enable
+ making a backup copy of the current flash. Intended for systems using 2x512Kb Flash devices.
+
+Option ( V ) - Toggle Write Verify
+
+By default each flash sector will be verified after being written. Slight
+performance improvements can be gained if turned off and could be used if
+you are experiencing reliable transfers and flashing.
+
+### Exit options
+
+Option ( R ) - Reboot
+
+Execute a cold reboot. This should be done after a successful update. If
+you perform a cold reboot after a failed update then it is likely that
+your system will be unusable and removing and reprogramming the flash
+will be required.
+
+Option ( Q ) - Quit to boot loader. 
+
+The SBC Boot Loader is reloaded from ROM and
+executed. After a successful update a Reboot should be performed. However,
+in the case of a failed update this option could be used to attempt to
+load CP/M and perform the normal x-modem / flash process to recover.
+
+### CRC Utility options
+
+Option ( 1 ) and ( 2 ) - Calculate and display CRC32 of 1st or 2nd 512k ROM.
+Option ( 3 ) - Calculate and display CRC32 of a 1024k (2x512Kb) ROM.
+
+Can be used to verify if a ROM image has been transferred and flashed correctly. Refer to the Tera Term section below for details on configuring the automatic display of a files CRC after it has been transferred.
+
+In Windows, right clicking on a file should also give you a context menu option CRC SHA which will allow you to select a CRC32 calculation to be done on the selected file.
+
+### Tera Term macro configuration 
+
+Macros are a useful tool for automatic common tasks. There are a number of instances where using macros to facilitate the update process could be worthwhile if you are:
+
+* Following the RomWBW development builds.
+* Doing lots of configuration changes.
+* Doing development on RomWBW drivers
+
+Macros can be used to automate sending ROM updates or images and for my own purposed I have set up a separate macro for transferring each of the standard build ROM, my own custom configuration ROM and update ROM.
+
+An example macro file to send an *.upd file, using checksum mode and display the crc32 value of the transmitted file:
+
+```
+Xmodem send, checksum, display crc32
+xmodemsend '\\desktop\users\phillip\documents\github\romwbw\binary\sbc_std_cust.upd' 1
+crc32file crc '\\desktop\users\phillip\documents\github\romwbw\binary\sbc_std_cust.rom'
+sprintf '0x%08x' crc
+messagebox inputstr 'crc32'
+```
+
+### Serial speed guidelines
+
+As identified in the introduction, there are limitations on serial speed depending on processor speed and flow control settings. Listed below are some of the results identified during testing.
+
+Configuration          | Processor Speed | Maximum Serial Speed
+-----------------------|-----------------|---------------------
+UART no flow control   | 2MHz            | 9600
+UART no flow control   | 4MHz            | 19200
+UART no flow control   | 5MHz            | 19200
+UART no flow control   | 8MHz            | 38400
+UART no flow control   | 10MHz           | 38400
+USB-fifo 2MHz+         |                 | n/a
+ASCI no flow control   | 18.432MHz       | 9600
+ASCI with flow control | 18.432MHz       | 38400
+
+The **Set Recommend Baud Rate** option in the Updater menu follows the following guidelines.
+
+Processor Speed | Baud Rate
+----------------|----------
+1MHz            | 4800
+2-3MHz          | 9600
+4-7MHz          | 19200
+8-20MHz         | 38400
+
+These can be customized in the updater.asm source code in the CLKTBL table  if desired.
+Feedback to the RomWBW developers on these guidelines would be appreciated.
+
+### Notes
+
+All testing was done with Tera Term x-modem, Forcing checksum mode using macros was found to give  the most reliable transfer.
+Partial writes can be completed with 39SF040 chips. Other chips require entire flash to be erased before being written.
+An SBC V2-005 MegaFlash or Z80 MBC required for 1mb flash support. The Updater assumes both chips are same type
+Failure handling has not been tested.
+Timing broadly calibrated on a Z80 SBC-v2
+Unabios not supported
+
+## User Application
+
+RomWBW provides the facility for a user to build, include and execute their 
+own custom application directly from the applications menu at boot-up. All that's 
+needed is for the user to create their custom code ready for inclusion, 
+recognising that there are certain constraints in doing this.
+
+In order to build properly, the build process requires that the file 
+`usrrom.asm` be found in the /Source/HBIOS folder of the RomWBW tree.
+
+This source file needs to assemble using TASM and it must start at
+(ORG) address 00100H as the RomWBW HBIOS reserves locations 00000H 
+to 000FFH for internal use. Further, the user application must assemble to 
+a maximum of `USR-SIZ` bytes. 
+
+During execution, the user application may make use of HBIOS calls as necessary, 
+and at exit it should return to the RomWBW boot loader 
+using the HBIOS warm reset. Note that no disk operating system (eg CP/M) 
+functions will be available as no disk operating system will have been loaded.
+
+There is a sample `usrrom.asm` supplied in Source/HBIOS and it is recommended 
+that, at least initially, users create their own application based on this as 
+a template because it already creates the necessary variables, starts at 
+(ORG) 00100H, and ensures that the assembled file is padded to create a 
+file `USR-SIZ` in length. Equally, should the the user's application prove 
+too large for the space available then assembly will be terminated with an error.
+Users should not remove this check from the templated code.
+
+If required, the user application may make use of the Z80 interrupt system 
+but if the user application wishes to rely on HBIOS functionality then it 
+must adhere to the HBIOS framework for managing interupts. Alternatively, 
+if the user appliction has no need for the HBIOS then it may use its own 
+custom code for handling interrupts. In that case, a hard reset, rather 
+than an HBIOS warm start, would be necessary to return control to RomWBW.
+
+`\clearpage`{=latex}
+
+# CP/M Applications - ROM-Based & Disk-Based
+
+There now follows a more detailed guide to using the small suite of custom
+applications included with RomWBW. In general, these applications are
+operating system agnostic -- they run under any of the included operating
 systems. However, they all require RomWBW -- they are not generic CP/M
 applications.
 
 Most of the applications are custom written for RomWBW. However, some
 are standard CP/M applications that have been adapted to run under
-RomWBW (e.g., XModem). The applications are generally matched to the
+RomWBW (e.g. XM/XModem). The applications are generally matched to the
 version of RomWBW they are distributed with. So, if you upgrade the
 version of RomWBW in your system ROM, you will want to copy the
 corresponding applications to any storage devices you are using.
@@ -27,37 +883,83 @@ data on your disk media, so don't do this if you are saving any data
 on the media.
 
 Most of the applications are included as source code in the RomWBW
-distribution and are built in the normal build process. The source
-code is found in the Source\\Apps directory of the distribution. The
-binary executable applications are found in the Binary\\Apps directory.
-
-The following table clarifies where each of the applications can be
-found:
-
-| Application | ROM Disk | Boot Disks | Apps Dir |
-| ----------- | -------- | ---------- | -------- |
-| ASSIGN      | Yes      | Yes        | Yes      |
-| SYSCOPY     | Yes      | Yes        | Yes      |
-| MODE        | Yes      | Yes        | Yes      |
-| FDU         | Yes      | Yes        | Yes      |
-| FORMAT      | Yes      | Yes        | Yes      |
-| XM          | Yes      | Yes        | Yes      |
-| FLASH       | Yes      | Yes        | Yes      |
-| FDISK80     | Yes      | Yes        | Yes      |
-| TALK        | Yes      | Yes        | Yes      |
-| RTC         | Yes      | Yes        | Yes      |
-| TIMER       | Yes      | Yes        | Yes      |
-| CPUSPD      | Yes      | Yes        | Yes      |
-| FAT         | Yes      | Yes        | Yes      |
-| CLRDIR      | Yes      | Yes        | Yes      |
-| INTTEST     | No       | Yes        | Yes      |
-| TUNE        | No       | Yes        | Yes      |
-| WDATE       | No       | Yes        | Yes      |
-| HTALK       | No       | Yes        | Yes      |
+distribution and are built during the normal build process. The source
+code is found in the Source/Apps directory of the distribution. The
+binary executable applications are found in the Binary/Apps directory.
+
+The table below clarifies where each of the applications may be
+found. It is not an exhaustive list, with further applications existing
+on both the ROM-based and disk-based versions of CP/M. All of the Applications
+incuded within RomWBW may be found with in the Binary/Apps directory. 
+
+| Application | ROM Disk | Boot Disks |
+| ----------- | :------: | :--------: |
+| ASSIGN      | Yes      | Yes        |
+| CLRDIR      | Yes      | Yes        |
+| COPYSL      | No       | Yes        |
+| CPUSPD      | Yes      | Yes        |
+| FAT         | No       | Yes        |
+| FDISK80     | Yes      | Yes        |
+| FDU         | Yes      | Yes        |
+| FLASH       | Yes      | Yes        |
+| FORMAT      | Yes      | Yes        |
+| HTALK       | Yes      | Yes        |
+| MODE        | Yes      | Yes        |
+| REBOOT      | Yes      | Yes        |
+| RTC         | Yes      | Yes        |
+| SURVEY      | Yes      | Yes        |
+| SYSCOPY     | Yes      | Yes        |
+| TALK        | Yes      | Yes        |
+| TIMER       | Yes      | Yes        |
+| TUNE        | No       | Yes        |
+| VGMPLAY     | No       | Yes        |
+| WDATE       | No       | Yes        |
+| XM          | Yes      | Yes        |
+
+All of the CP/M applications may be found in the RomWBW Binary/Apps directory 
+and a user may copy those they need to their own customised disk/slice.
+
+Independently of whether the CP/M system was started from ROM or a boot disk,
+such as a floppy disk or a slice on a CF or uSD memory card, applications 
+may be located on and executed from either the ROM-disk itself or from other media. 
+There are multiple disk images available for CP/M (eg floppy, legacy hard-disk and new 
+hard-disk formats) and they all contain essentially the same set of applications.
+
+There are particular advantages for each method of booting into CP/M.
+
+ROM-based CP/M:
+
+- A clean and reliable copy of CP/M with no possibility of corruption
+- No additional hardware required
+- Fast to boot
+- Rolled forward with new releases of RomWBW
+
+Disk-based CP/M:
+
+- Greater capacity allows for a larger number of applications
+- Allows for user-customisation of applications available
+- Allows individual disks to be tailored to a particular purpose, eg word processor
+
+For systems starting CP/M from a disk created from an image file, there are a small number
+of additional applications stored in the ```USER 2``` area of the disk. These applications
+do not form part of CP/M, but rather are small utilities used for test purposes during develpment work.
+They may, or may not, fuction correctly with any given hardware or software configuration.
+Documentation for these untilities is very limited, though the source files maybe found 
+in the /Source folder. Note that these utiltites are not available when starting CP/M
+from the ROM image or from a floppy disk.
+
+A number of the CP/M applications available are described in more detail in 
+the following sections, each with an indication as to whether that application 
+may be found on the ROM-disk, a boot-disk, or both.
 
 `\clearpage`{=latex}
 
-# ASSIGN
+## ASSIGN
+
+| ASSIGN              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
 RomWBW includes a flexible mechanism for associating the operating
 system drive letters (A: - P:) to the physical devices in the system.
@@ -65,7 +967,7 @@ Drive letter assignments can be changed on a running operating system
 without rebooting. The ASSIGN command facilitates this by allowing you
 to display, assign, reassign, or remove the drive letter assignments.
 
-## Syntax
+#### Syntax
 
 | `ASSIGN /?`
 | `ASSIGN /L`
@@ -73,7 +975,7 @@ to display, assign, reassign, or remove the drive letter assignments.
 | `ASSIGN `*`<drv>`*`=[`*`<device>`*`:[`*`<slice>`*`]],...`
 | `ASSIGN `*`<tgtdrv>`*`=`*`<srcdrv>`*`,...`
 
-## Usage
+#### Usage
 
 `ASSIGN /?` will display brief command usage and version information.
 
@@ -110,7 +1012,7 @@ When the command runs it will echo the resultant assignments to the
 console to confirm its actions. It will also display the remaining
 space available in disk buffers.
 
-## Notes
+#### Notes
 
 If the `ASSIGN` command encounters any rule violations or errors, it
 will abort with an error and **none** of the drive assignments will be
@@ -183,314 +1085,467 @@ vs. CP/M 3.  If you utilize an RSX that modifies the BDOS version
 returned, you are likely to have serious problems.  In this case, be
 sure to use `ASSIGN` prior to loading the RSX or after it is unloaded.
 
-## Etymology
+#### Etymology
 
 The `ASSIGN` command is an original product and the source code is
 provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# SYSCOPY
+## CLRDIR
 
-To make disk media bootable, you must write a system boot image onto
-the system tracks of the of the media. The `SYSCOPY` allows you to
-read or write the system boot image of disk media.
+| CLRDIR              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-## Syntax
+The `CLRDIR` command is used to initialise the directory area of a drive.
 
-| `SYSCOPY `*`<dest>`*`=`*`<src>`*
+#### Syntax
 
-*`<dest>`* is the drive to receive the operating system image or
-alternatively a filename to save the operating system image
+| `CLRDIR `*`<drv>`*
 
-*`<src>`* is the drive containing an operating system image or
-alternatively a filename containing the system image to be placed on
-the destination
+#### Usage
 
-## Usage
+`CLRDIR `*`<drv>`* will initialise the directory area of the specified drive. The
+drive may take any form - eg floppy disk, hard-disk, CF, uSD etc.
 
-Both *`<dest>`* and *`<src>`* can refer to either a drive letter or a
-file. If a drive letter is specified, the system boot image will be
-read or written to the system tracks of the drive. If a filename is
-specified, the system boot image will be read or written to the
-specified filename.
+The use of FDISK80 to reserve space, or slices, for CP/M use as drives will not 
+initialise the directory areas of those slices. The resultant directory areas will 
+contain garbage left over from a previous use of the disk (or media) and using
+them in this state with CP/M will very likely lead to failed or corrupted data 
+storage. Use `CLRDIR` to initialise the directory properly.
 
-`SYSCOPY C:=ZSYS.SYS` will read a system boot image from the file
-ZSYS.SYS and write it onto the system tracks of drive C:.
+FDU will initialise the directory of a floppy disk as part of the formatting process
+and so `CLRDIR` is unnecessary for a floppy disk. `CLRDIR` is, therefore, primarily used 
+with other types such as hard-disk, CF and uSD.
 
-`SYSCOPY A:OS.SYS=C:` will capture the system boot image from the
-system tracks of drive C: and store it in the file A:OS.SYS.
+The `CLRDIR` command may also be used to effectively 'reformat' a used disk
+by reinitialising its directory area and effectively making it blank again.
 
-`SYSCOPY D:=C:` will copy the system tracks from drive C: onto the
-system tracks of drive D:.
+Use `CLRDIR` with caution as changes made to disks by `CLRDIR` cannot be undone.
 
-## Notes
+#### Notes
 
-The RomWBW ROM disk contains files with the system boot image for
-Z-System and CP/M 2.2. These files are called CPM.SYS and ZSYS.SYS
-respectively. These files can be used as the source of a `SYSCOPY`
-command to make a disk bootable with the corresponding operating
-system.
+If `CLRDIR` is used on disk containing data then the directory area will be 
+reinitialised and the data previously stored will be lost.
 
-CP/M 3 uses a two phase boot process. To make a CP/M 3 drive bootable,
-you need to put "CPMLDR.SYS" on the boot tracks of the disk and be
-sure that the drive also contains the "CPM.SYS" file. The "CPMLDR.SYS"
-file is not included on the ROM disk, but is found on the CP/M 3 disk
-image.
+`\clearpage`{=latex}
 
-ZPM3 is similar to CP/M 3. You also put "CPMLDR.SYS" on the system
-tracks of the drive to make it bootable. The ZPM3 operating system is
-in the file called "CPM3.SYS" on the ZPM3 disk image. It may seem
-confusing that ZPM3 is in the file called CPM3.SYS, but it is normal
-for ZPM3.
+## CPUSPD
 
-For the purposes of booting an operating system, each disk slice is
-considered its own operating system. Each slice can be made bootable
-with its own system tracks.
+| CPUSPD              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-`SYSCOPY` uses drive letters to specify where to read/write the system
-boot images. However, at startup, the boot loaded will require you to
-enter the actual disk device and slice to boot from. So, you need to
-be careful to pay attention to the device and slice that is assigned
-to a drive letter so you will know what to enter at the boot loader
-prompt. By way of explanation, the boot loader does not know about
-drive letters because the operating system is not loaded yet.
+The `CPUSPD` application is used to change the running speed and wait
+states of a RomWBW system.  It can also be used to invoke a warm or
+cold reboot of the system.
 
-If you want to put a boot system image on a device and slice that is
-not currently assigned to a drive letter, you will need to assign a
-drive letter first.
+The functionality is highly dependent on the capabilities of your system.
 
-Not all disk formats include space for system tracks. Such disk
-formats cannot contains a system boot image and, therefore, cannot be
-made bootable. The best example of such disk formats are the ROM and
-RAM disks. To maximize usable file space on these drives, they do not
-have system tracks. Obviously, ROM operating system is supported by
-choosing a ROM operating system at the boot loader prompt. Any attempt
-to write a system boot image to disk media with no system tracks will
-cause SYSCOPY to fail with an error message.
+At present, all Z180 systems can change their CPU speed and their
+wait states.  SBC and MBC systems may be able to change their CPU
+speed if the hardware supports it and it is enabled in the HBIOS
+configuration.
 
-The system boot images are paired with the ROM version in your system.
-So, you must take care to update the system tracks of any bootable
-disk when you upgrade your ROM firmware.
+#### Syntax
 
-The system boot images are **not** tied to specific hardware
-configurations. System boot images and operating systems provided with
-RomWBW will work with any supported RomWBW platform or hardware as
-long as they are the same version as the RomWBW firmware.
+| `CPUSPD [`*`<speed>`*`[,[`*`<memws>`*`][,[`*`<iows>`*`]]]`
+| `CPUSPD (W)armBoot`
+| `CPUSPD (C)oldBoot`
 
-## Etymology
+*`<speed>`* is one of (H)alf, (F)ull, (D)ouble, or (Q)uad.  
+*`<memws>`* is a number specifying the desired memory wait states.  
+*`<iows>`* is a number specifying the desired I/O wait states.
 
-The `SYSCOPY` command is an original product and the source code is
-provided in the RomWBW distribution.
+#### Usage
+
+Entering `CPUSPD` with no parameters will display the current CPU speed
+and wait state information of the running system.  Wait state
+information is not available for all systems.
+
+To modify the running speed of a system, you can specify the
+`*`<speed>`*` parameter.  To modify either or both of the wait
+states, you can enter the desired number.  Either or both of the wait
+state parameters may be omitted and the current wait state settings
+will remain in effect.
+
+#### Notes
+
+The ability to modify the running speed and wait states of a system
+varies widely depending on the hardware capabilities and the HBIOS
+configuration settings.
+
+Note that it is frequently impossible to tell if a system is capable
+of dynamic speed changes.  This function makes the changes blindly.
+If an attempt is made to change the speed of a system
+that is definitely incapable of doing so, then an error result is
+returned.
+
+The `CPUSPD` command makes no attempt to ensure that the new CPU
+speed will actually work on the current hardware.  Setting a CPU
+speed that exceeds the capabilities of the system will result in
+unstable operation or a system stall.
+
+Some peripherals are dependent on the CPU speed.  For example, the Z180
+ASCI baud rate and system timer are derived from the CPU speed.  The
+CPUSPD application will attempt to adjust these peripherals for
+correct operation after modifying the CPU speed.  However, in some
+cases this may not be possible.  The baud rate of ASCI ports have a
+limited set of divisors.  If there is no satisfactory divisor to
+retain the existing baud rate under the new CPU speed, then the baud
+rate of the ASCI port(s) will be affected.
+
+#### Etymology
+
+The `CPUSPD` application was custom written for RomWBW. All of the
+hardware interface code is specific to RomWBW and the application will
+not operate correctly on non-RomWBW systems.
+
+The source code is provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# MODE
+## COPYSL
 
-The MODE command allows you to adjust the operating characteristics
-such as baud rate, data bits, stop bits, and parity bits of serial
-ports dynamically.
+| COPYSL              |   |
+| --------------------|---|
+| ROM-based           |No |
+| Disk-based          |Yes|
 
-## Syntax
+The purpose of this utility is to allow the copying of whole disk slices
+from one disk slice to another slice
 
-`MODE /?`
-`MODE COM`*`<n>`*`: [`*`<baud>`*`[,`*`<parity>`*`[,`*`<databits>`*`[,`*`<stopbits>`*`]]]] [/P]`
+This tool is only supported by RomWBW HBIOS, it uses HDIOS for all its 
+disk IO. UNA UBIOS is not supported by this tool. 
 
-`/?` displays command usage and version information
+This tool is running on CP/M 2.2 or 3.0 and has access to full 64kb of
+RAM, with a minimum of 48kb TPA
 
-*`<n>`* is the character device unit number
+This tool only works with hard disk devices, other media types like 
+floppy, are not supported at this time. This tool works across different 
+hard disk device types, even of different physical type
 
-*`<baud>`* is numerical baudrate
+Both hd1k and hd512 are fully supported, however copying from one layout 
+type to the other is not supported.
 
-*`<parity>`* is (N)one, (O)dd, (E)ven, (M)ark, or (S)pace
+During operation data is copied in a single read/write pass, data is not 
+verified by default. If there is a write error, it will be reported, and
+operation will stop.
 
-*`<databits>`* is number of data bits, typically 7 or 8
+#### Syntax
 
-*`<stopbits>`* is number of stop bits, typically 1 or 2
+This tool operates at the disk level via RomWBW, thus all disk identifiers 
+are in the RomWBW \<disk\>.\<unit\> format.
 
-`/P` prompts user prior to setting new configuration
+The syntax (similar to copy) for the command is:
 
-## Usage
+| `COPYSL `*\<destunit\>*[`.`*\<slice\>*]`=`*\<srcunit\>*[`.`*\<slice\>*] [`/`*\<options\>*]
+  
+E.g.
+  
+| COPYSL 3.3=2.10 /U
 
-`MODE /?` will display basic command usage and version information.
+Means copy from slice 10 on disk 2, onto disk 3 slice 3. This is in unattended
+mode, so you will not be asked to confirm the copy operation.
 
-`MODE` with no parameters will list all devices and their current
-configuration.
+#### Options
 
-`MODE <`*n*`>` will display the current configuration of the specified
-character device unit.
+F - Full disk copy. Copies the complete disk slice, all sectors. \
+U - Unattended. Will complete copy without confirmation from the user. \
+V - Verify. Does an additional read and verify after write.
 
-`MODE COM`*`<n>`*`: [`*`<baud>`*`[,`*`<parity>`*`[,`*`<databits>`*`[,`
-*`<stopbits>`*`]]]] [/P]` requests that the specified configuration
-be set on the character device unit. You can use commas with no values
-to leave some values unchanged. As an example, `MODE COM0: 9600,,,2`
-will setup character device unit 0 for 9600 baud and 2 stop bits while
-leaving data bits and stop bits as is.
+#### Usage
 
-Appending `/P` in a command specifying a new configuration will cause
-the terminal output to pause and wait for the user to press a key.
-This allows the user to change the local terminal setup before
-continuing.
+When run COPYSL will perform command line argument validation and display 
+an error if they are illegal. Also any disk IO errors will cause COPYSL
+to exit.
 
-## Notes
+When specifying slice number(s) a check is made that the slice number is 
+valid, i.e. not too large that it would extend past the end of the 
+partition (hd1k), or the end of the media (hd512). For hd512 a check is
+also performed to ensure that the slice would not extend into the first 
+defined partition.
 
-Specified baud rate and line characteristics must be supported by the
-serial unit. Any parameters not specified will remain unchanged.
+The copy operation will be faster if the source disk has been formatted
+with the CP/M file system, since during copy the CP/M directory is scanned, 
+and unused blocks are not copied. 
 
-Changes are not persisted and will revert to system defaults at next
-system boot.
+If a filesystem is not found, (or the /F option is chosen) all data is 
+copied.
 
-Not all character devices support all `MODE` options. Some devices
-(notably ASCI devices) have limited baud rate divisors. An attempt to
-set a baud rate that the device cannot support will fail with an error
-message.
+Verification (if option chosen) will do an aditional read (after write)
+and compare the data read matches what was written. This compare is only
+on every 32'nd byte. This is done for efficiency. 
 
-## Etymology
+During copy dots "." will be displayed to indicate progress of the copy.
+Each "." represents 16 kBytes of data. Each line of "." 's is 1 mBytes.
 
-The `MODE` command is an original product and the source code is
-provided in the RomWBW distribution.
+#### Notes
+
+This tool has been tested on both SD and CF media types and with hd1k and hd512
+formatted media.
+
+You cannot copy slices between different hard disk formats (hd512 and
+hd1k) because the slices are incompatible.
+
+#### Etymology
+
+The `COPYSL` application was custom written for RomWBW and contributed
+by Mark Pruden.
 
 `\clearpage`{=latex}
 
-# FDU
+## FAT
 
-The FDU application is a Floppy Disk Utility that provides functions
-to format and test floppy disk media.
+| FAT                 |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-## Syntax
+The operating systems included with RomWBW do not have any native
+ability to access MS-DOS FAT filesystems. The FAT application can be
+used overcome this. It will allow you to transfer files between CP/M
+and FAT filesystems (wildcards supported). It can also erase files,
+format, and list directories of FAT filesystems.
 
-`FDU`
+#### Syntax
 
-## Usage
+| `FAT DIR `*`<path>`*
+| `FAT COPY `*`<src> <dst>`*
+| `FAT REN `*`<from> <to>`*
+| `FAT DEL `*`<path>[<file>|<dir>]`*
+| `FAT MD `*`<path>`*
+| `FAT FORMAT `*`<drv>`*
 
-This application has an interactive user interface. At startup, you
-will be prompted to select the floppy interface hardware in your
-system. Following this, you will see the main menu of the program with
-many functions to manage floppy disk drives.
+| *`<path>`* is a FAT path
+| *`<src>`*, *`<dst>`* are FAT or CP/M filenames
+| *`<from>`*, *`<to>`* are FAT filenames
+| *`<file>`* is a FAT filename
+| *`<dir>`* is a FAT directory name
+| *`<drv>`* is a RomWBW disk unit number
 
-The primary documentation for this application is in a file called
-"FDU.txt" in the Doc directory of the RomWBW distribution. Please
-consult this file for usage information.
+| CP/M filespec: *`<d>`*`:FILENAME.EXT` (*`<d>`* is CP/M drive letter A-P)
+| FAT filespec: *`<u>`*`:/DIR/FILENAME.EXT` (*`<u>`* is RomWBW disk unit #)
 
-## Notes
+#### Usage
 
-This application interfaces directly to the floppy hardware in your
-system. It does not use the RomWBW HBIOS. This means that even if your
-system is not configured for floppy drives, you can still use `FDU`
-to test your floppy drives and format floppy media. This also means it
-is critical that you choose the correct hardware interface from the
-initial selection when starting the application.
+The `FAT` application determines whether you are referring to a CP/M
+filesystem or a FAT filesystem based on the way you specify the file
+or path. If the file or path is prefixed with a number (n:), then it
+is assumed this is a FAT filesystem reference and is referring to the
+FAT filesystem on RomWBW disk unit 'n'. Otherwise, the file
+specification is assumed to be a normal CP/M file specification.
 
-## Etymology
+If you wanted to list the directory of the FAT filesystem on RomWBW
+disk unit 2, you would use `FAT DIR 2:`. If you only wanted to see the
+".TXT" files, you would use `FAT DIR 2:*.TXT`.
 
-The `FDU` command is an original product and the source code is
-provided in the RomWBW distribution.
+If you wanted to copy all of the files on CP/M drive B: to the FAT
+filesystem on RomWBW disk unit 4, you would use the command `FAT COPY
+B:*.* 4:` If you wanted to copy the files to the "FOO" directory, then
+you would use `FAT COPY B:*.* 4:\FOO`. To copy files in the opposite
+direction, you just reverse the parameters.
 
-`\clearpage`{=latex}
+To rename the file "XXX.DAT" to "YYY.DAT" on a FAT filesystem, you
+could use a command like "FAT REN 2:XXX.DAT 2:YYY.DAT".
 
-# FORMAT
+To delete a file "XXX.DAT" on a FAT filesystem in directory "FOO", you
+would use a command like `FAT DEL 2:\FOO\XXX.DAT`.
 
-This application is just a placeholder for a future version that will
-make it simpler to format media including floppy disks.
+To make a directory called "FOO2" on a FAT filesystem, you would use a
+command line `FAT MD 2:\FOO2`.
 
-## Syntax
+To format the filesystem on a FAT partition, you would use a command
+like `FAT FORMAT 2:`. Use this with caution because it will destroy
+all data on any pre-existing FAT filesystem on disk unit 2.
 
-`FORMAT`
+#### Notes
 
-## Notes
+Partitioned or non-partitioned media is handled automatically. A
+floppy drive is a good example of a non-partitioned FAT filesystem and
+will be recognized. Larger media will typically have a partition
+table which will be recognized by the application to find the FAT
+filesystem.
 
-This application currently just displays a few lines of information
-briefly instructing a user how to format media. It performs no actual
-function beyond this display currently.
+Although RomWBW-style CP/M media does not know anything about
+partition tables, it is entirely possible to have media that
+has both CP/M and FAT file systems on it.  This is accomplished
+by creating a FAT filesystem on the media that starts on a track
+beyond the last track used by CP/M.  Each CP/M slice can occupy
+up to 8MB.  So, make sure to start your FAT partition beyond
+(slice count) * 9MB.
 
-## Etymology
+The application infers whether you are attempting to reference a FAT
+or CP/M filesystem via the drive specifier (char before ':'). A
+numeric drive character specifies the HBIOS disk unit number for FAT
+access. An alpha (A-P) character indicates a CP/M file system access
+targeting the specified drive letter. If there is no drive character
+specified, the current CP/M filesystem and current CP/M drive is
+assumed. For example:
 
-The `FORMAT` command is an original product and the source code is
-provided in the RomWBW distribution.
+| `2:README.TXT` refers to FAT file "README.TXT" on disk unit #2
+| `C:README.TXT` refers to CP/M file "README.TXT" on CP/M drive C
+| `README.TXT` refers to CP/M file "README.TXT" on the current CP/M drive
+
+Files with SYS, HIDDEN, or R/O only attributes are not given any
+special treatment. Such files are found and processed like any other
+file. However, any attempt to write to a read-only file will fail and
+the application will abort.
+
+It is not currently possible to reference CP/M user areas other than
+the current user. To copy files to alternate user areas, you must
+switch to the desired user number first or use an additional step to
+copy the file to the desired user area.
+
+Accessing FAT filesystems on a floppy requires the use of RomWBW HBIOS
+v2.9.1-pre.13 or greater.
+
+Only the first 8 RomWBW disk units (0-7) can be referenced.
+
+Files written are not verified.
+
+Wildcard matching in FAT filesystems is a bit unusual as implemented by
+FatFs. See FatFs documentation.
+
+#### Etymology
+
+The `FAT` application is an original RomWBW work, but utilizes the
+FsFat library for all of the FAT filesystem work. This application is
+written in C and requires SDCC to compile. As such it is not part of
+the RomWBW build process. However, the full project and source code is
+found in the [FAT GitHub Repository](https://github.com/wwarthen/FAT).
+
+#### Known Issues
+
+CP/M (and workalike) OSes have significant restrictions on filename
+characters.  The FAT application will block any attempt to create a
+file on the CP/M filesystem containing any of these prohibited
+characters:
+
+|         `< > . , ; : ? * [ ] |/ \`
+
+The operation will be aborted with "`Error: Invalid Path Name`" if such
+a filename character is encountered.
+
+Since MS-DOS does allow some of these characters, you can have
+issues when copying files from MS-DOS to CP/M if the MS-DOS filenames
+use these characters.  Unfortunately, FAT is not yet smart enough to
+substitute illegal characters with legal ones.  So, you will need to
+clean the filenames before trying to copy them to CP/M.
+
+The FAT application does try to detect the scenario where you are
+copying a file to itself.  However, this detection is not perfect and
+can corrupt a file if it occurs.  Be careful to avoid this.
 
 `\clearpage`{=latex}
 
-# XM
+## FDISK80
 
-An adaptation of Ward Christensen's X-Modem protocol for transferring
-files between systems using a serial port.
+| FDISK80             |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-## Syntax
+`FDISK80` allows you to create and manage traditional partitions on
+your hard disk media.  Depending on the hard disk format and features
+you are using, RomWBW may need hard disk partitions defined.
 
-| `XM S `*`<filename>`*
-| `XM SK `*`<filename>`*
-| `XM L `*`<library> <filename>`*
-| `XM LK `*`<library> <filename>`*
-| `XM R `*`<filename>`*
+Please refer to the $doc_user$ for more information on the use of
+partitions within RomWBW.  It is very important to understand that
+RomWBW slices are completely different from disk partitions.
 
-`S`: Send a file
-`L`: Send a file from a library
-`R`: Receive a file
-`K`: Use 1K blocksize for transfer
+This application is provided by John Coffman.  The primary
+documentation is in the file "FDisk Manual.pdf" found in the
+Doc directory of the RomWBW distribution.
 
-*`<filename>`* is the name of a file to send or receive
+#### Usage
 
-*`<library>`* is the name of a library (.lbr) to extract a file to send
+`FDISK80` is an interactive application. At startup it will ask you
+for the disk unit that you want to partition. When your RomWBW system
+boots, it will display a table with the disk unit numbers. Use the
+disk unit numbers from that table to enter the desired disk unit to
+partition.
 
-## Usage
+`FDISK80` operates very much like other FDISK disk partitioning
+applications. Please refer to the file called "FDisk Manual.pdf" in
+the Doc directory of the RomWBW distribution for further instructions.
 
-To transfer a file from your host computer to your RomWBW computer, do
-the following:
+If 'slices' for CP/M have been created using `FDISK80`, then these will
+need to have their directory areas initialised properly using `CLRDIR`. 
+Failure to do this will likely result in corrupted data.
 
-1. Enter one of the `XM` receive commands specifying the name you want
-to give to the received file.
+There is also more information on using FAT partitions with RomWBW in
+the $doc_user$ document in the Doc directory of the distribution.
 
-2. On your host computer select a file to send and initiate the XModem
-send operation.
+#### Notes
 
-To transfer a file from your RomWBW computer to your host computer, do
-the following:
+Hard disk partition tables allow a maximum of 1024 cylinders when
+defining partitions.  However, RomWBW uses exclusively Logical Block
+Addressing (LBA) which does not have this limitation.  When defining
+partitions is usually best to define the start and size of of the
+partition using bytes or sectors.
 
-1. Enter one of the `XM` send commands specifying the name of the file
-to be sent.
+#### Etymology
 
-2. On your host computer, specify the name to assign to the received
-file and initiate and XModem receive operation.
+The source for this application was provided directly by John Coffman.
+It is a C program and requires a build environment that includes the
+SDCC compiler. As such, it is not included in the RomWBW build
+process, only the binary executable is included.
 
-Please refer to the documentation of your host computer's terminal
-emulation software for specific instructions on how to use XModem.
+Please contact John Coffman if you would like a copy of the source.
 
-## Notes
+`\clearpage`{=latex}
 
-The XModem adaptation that comes with RomWBW will automatically use
-the primary character device unit (character device unit 0) for the
-file transfer.
+## FDU
 
-`XM` attempts to determine the best way to drive the serial port based
-on your hardware configuration. When possible, it will bypass the
-HBIOS for faster operation. However, in many cases, it will use HBIOS
-so that flow control can be used.
+| FDU                 |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-`XM` is dependent on a reliable communications channel. You must
-ensure that the serial port can be serviced fast enough by either
-using a baud rate that is low enough or ensuring that hardware flow
-control is fully functional (end to end).
+The FDU application is a Floppy Disk Utility that provides functions
+to format and test floppy disk media.
 
-## Etymology
+#### Syntax
 
-The `XM` application provided in RomWBW is an adaptation of a
-pre-existing XModem application. Based on the source code comments, it
-was originally adapted from Ward Christensen's MODEM2 by Keith
-Petersen and is labelled version 12.5.
+`FDU`
 
-The original source of the application was found in the Walnut Creek
-CD-ROM and is called XMDM125.ARK dated 7/15/86.
+#### Usage
 
-The actual application is virtually untouched in the RomWBW
-adaptation. The majority of the work was in the modem driver which was
-enhanced to detect the hardware being used and dynamically choose the
-appropriate driver.
+This application has an interactive user interface. At startup, you
+will be prompted to select the floppy interface hardware in your
+system. Following this, you will see the main menu of the program with
+many functions to manage floppy disk drives.
 
-The source code is provided in the RomWBW distribution.
+The primary documentation for this application is in a file called
+"FDU.txt" in the Doc directory of the RomWBW distribution. Please
+consult this file for usage information.
+
+#### Notes
+
+This application interfaces directly to the floppy hardware in your
+system. It does not use the RomWBW HBIOS. This means that even if your
+system is not configured for floppy drives, you can still use `FDU`
+to test your floppy drives and format floppy media. This also means it
+is critical that you choose the correct hardware interface from the
+initial selection when starting the application.
+
+#### Etymology
+
+The `FDU` command is an original product and the source code is
+provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# FLASH
+## FLASH
+
+| FLASH               |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
 Most of the hardware platforms that run RomWBW support the use of
 EEPROMs -- Electronically Erasable Programmable ROMs. The `FLASH`
@@ -500,7 +1555,7 @@ removing the ROM from your system.
 
 This application is provided by Will Sowerbutts.
 
-## Syntax
+#### Syntax
 
 | `FLASH READ `*`<filename>`*` [options]`
 | `FLASH VERIFY `*`<filename>`*` [options]`
@@ -523,172 +1578,242 @@ Options:
 | `/P112`: Force P112 bank switching
 | `/N8VEMSBC`: Force N8VEM SBC (v1, v2), Zeta (v1) SBC bank switching
 
-## Usage
+#### Usage
+
+To program your EEPROM ROM chip, first transfer the file to your
+RomWBW system. Then use the command `FLASH WRITE *`<filename>`*. The
+application will auto-detect the type of EEPROM chip you have,
+program it, and verify it.
+
+You can use the `FLASH READ` form of the command to read the ROM image
+from your system into a file. This is useful if you want to save a
+copy of your current ROM before reprogramming it.
+
+Although `FLASH WRITE` automatically performs a verification, you can
+manually perform a verification function with the `FLASH VERIFY` form
+of the command.
+
+The author's documentation for the application is found in the RomWBW
+distribution in the Doc/Contrib directory.
+
+#### Notes
+
+The application supports a significant number of EEPROM parts. It
+should automatically detect your part. If it does not recognize your
+chip, make sure that you do not have a write protect jumper set --
+this jumper can prevent the ROM chip from being recognized.
+
+Reprogramming a ROM chip in-place is inherently dangerous. If anything
+goes wrong, you will be left with a non-functional system and no
+ability to run the `FLASH` application again. Use this application
+with caution and be prepared to use a hardware ROM programmer to
+restore your system if needed.
+
+#### Etymology
+
+This application was written and provided by Will Sowerbutts. He
+provides it in binary format and is included in the RomWBW
+distribution as a binary file.
+
+The source code for this application can be found at the [FLASH4
+GitHub repository](https://github.com/willsowerbutts/flash4).
+
+`\clearpage`{=latex}
+
+## FORMAT
+
+| FORMAT              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
+
+This application is just a placeholder for a future version that will
+make it simpler to format media including floppy disks.
+
+#### Syntax
+
+`FORMAT`
+
+#### Notes
+
+This application currently just displays a few lines of information
+briefly instructing a user how to format media. It performs no actual
+function beyond this display currently.
+
+#### Etymology
+
+The `FORMAT` command is an original product and the source code is
+provided in the RomWBW distribution.
+
+`\clearpage`{=latex}
+
+## HTALK
 
-To program your EEPROM ROM chip, first transfer the file to your
-RomWBW system. Then use the command `FLASH WRITE *`<filename>`*. The
-application will auto-detect the type of EEPROM chip you have,
-program it, and verify it.
+| HTALK               |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-You can use the `FLASH READ` form of the command to read the ROM image
-from your system into a file. This is useful if you want to save a
-copy of your current ROM before reprogramming it.
+`HTALK` is a variation of the `TALK` utility, but it works directly
+against HBIOS Character Units.
 
-Although `FLASH WRITE` automatically performs a verification, you can
-manually perform a verification function with the `FLASH VERIFY` form
-of the command.
+#### Syntax
 
-The author's documentation for the application is found in the RomWBW
-distribution in the Doc/Contrib directory.
+`HTALK COMn:`
 
-## Notes
+#### Usage
 
-The application supports a significant number of EEPROM parts. It
-should automatically detect your part. If it does not recognize your
-chip, make sure that you do not have a write protect jumper set --
-this jumper will prevent the ROM chip from being recognized.
+`HTALK` operates at the HBIOS level.
 
-Reprogramming a ROM chip in-place is inherently dangerous. If anything
-goes wrong, you will be left with a non-functional system and no
-ability to run the `FLASH` application again. Use this application
-with caution and be prepared to use a hardware ROM programmer to
-restore your system if needed.
+The parameter to `TALK` refers to a HBIOS character unit.  Upon
+execution all characters typed at the console will be sent to the
+device specified and all characters received by the specified device
+will be echoed on the console.
 
-## Etymology
+Press Control+Z on the console to terminate the application.
 
-This application was written and provided by Will Sowerbutts. He
-provides it in binary format and is included in the RomWBW
-distribution as a binary file.
+#### Notes
 
-The source code for this application can be found at the [FLASH4
-GitHub repository](https://github.com/willsowerbutts/flash4).
 
-`\clearpage`{=latex}
+#### Etymology
 
-# FDISK80
+The `TALK` command was created and donated to RomWBW by Tom Plano.  It
+is an original product designed specifically for RomWBW.
 
-`FDISK80` allows you to create and manage traditional partitions on
-your hard disk media.  Depending on the hard disk format and features
-you are using, RomWBW may need hard disk partitions defined.
+`\clearpage`{=latex}
 
-Please refer to the $doc_user$ for more information on the use of
-partitions within RomWBW.  It is very important to understand that
-RomWBW slices are completely different from disk partitions.
+## MODE
 
-This application is provided by John Coffman.  The primary
-documentation is in the file "FDisk Manual.pdf" found in the
-Doc directory of the RomWBW distribution.
+| MODE                |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-## Usage
+The MODE command allows you to adjust the operating characteristics
+such as baud rate, data bits, stop bits, and parity bits of serial
+ports dynamically.
 
-`FDISK80` is an interactive application. At startup it will ask you
-for the disk unit that you want to partition. When your RomWBW system
-boots, it will display a table with the disk unit numbers. Use the
-disk unit numbers from that table to enter the desired disk unit to
-partition.
+#### Syntax
 
-`FDISK80` operates very much like other FDISK disk partitioning
-applications. Please refer to the file called "FDisk Manual.pdf" in
-the Doc directory of the RomWBW distribution for further instructions.
+`MODE /?`
+`MODE COM`*`<n>`*`: [`*`<baud>`*`[,`*`<parity>`*`[,`*`<databits>`*`[,`*`<stopbits>`*`]]]] [/P]`
 
-There is also more information on using FAT partitions with RomWBW in
-the $doc_user$ document in the Doc directory of the distribution.
+`/?` displays command usage and version information
 
-## Notes
+*`<n>`* is the character device unit number
 
-Hard disk partition tables allow a maximum of 1024 cylinders when
-defining partitions.  However, RomWBW uses exclusively Logical Block
-Addressing (LBA) which does not have this limitation.  When defining
-partitions is usually best to define the start and size of of the
-partition using bytes or sectors.
+*`<baud>`* is numerical baudrate
 
-## Etymology
+*`<parity>`* is (N)one, (O)dd, (E)ven, (M)ark, or (S)pace
 
-The source for this application was provided directly by John Coffman.
-It is a C program and requires a build environment that includes the
-SDCC compiler. As such, it is not included in the RomWBW build
-process, only the binary executable is included.
+*`<databits>`* is number of data bits, typically 7 or 8
 
-Please contact John Coffman if you would like a copy of the source.
+*`<stopbits>`* is number of stop bits, typically 1 or 2
 
-`\clearpage`{=latex}
+`/P` prompts user prior to setting new configuration
 
-# TALK
+#### Usage
 
-It is sometimes useful to direct your console input/output to a
-designated serial port.  For example, if you were to connect a modem
-to your second serial port, you might want to connect directly to it
-and have everything you type sent to it and everything it sends be
-shown on your console.  The `TALK` application does this.
+`MODE /?` will display basic command usage and version information.
 
-## Syntax
+`MODE` with no parameters will list all devices and their current
+configuration.
 
-`TALK [TTY:|CRT:|BAT:UC1:]`
+`MODE <`*n*`>` will display the current configuration of the specified
+character device unit.
 
-## Usage
+`MODE COM`*`<n>`*`: [`*`<baud>`*`[,`*`<parity>`*`[,`*`<databits>`*`[,`
+*`<stopbits>`*`]]]] [/P]` requests that the specified configuration
+be set on the character device unit. You can use commas with no values
+to leave some values unchanged. As an example, `MODE COM0: 9600,,,2`
+will setup character device unit 0 for 9600 baud and 2 stop bits while
+leaving data bits and stop bits as is.
 
-`TALK` operates at the operating system level (not HBIOS).
+Appending `/P` in a command specifying a new configuration will cause
+the terminal output to pause and wait for the user to press a key.
+This allows the user to change the local terminal setup before
+continuing.
 
-The parameter to `TALK` refers to logical CP/M serial devices.  Upon
-execution all characters typed at the console will be sent to the
-device specified and all characters received by the specified device
-will be echoed on the console.
+#### Notes
 
-Press Control+Z on the console to terminate the application.
+Specified baud rate and line characteristics must be supported by the
+serial unit. Any parameters not specified will remain unchanged.
 
-## Notes
+Changes are not persisted and will revert to system defaults at next
+system boot.
 
-This application is designed for CP/M 2.2 or Z-System.  Use on later
-operating systems such as CP/M 3 is not supported.
+Not all character devices support all `MODE` options. Some devices
+(notably ASCI devices) have limited baud rate divisors. An attempt to
+set a baud rate that the device cannot support will fail with an error
+message.
 
-## Etymology
+#### Etymology
 
-The `TALK` command is an original product and the source code is
+The `MODE` command is an original product and the source code is
 provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# HTALK
+## REBOOT
 
-`HTALK` is a variation of the `TALK` utility, but it works directly
-against HBIOS Character Units.
+| REBOOT              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-## Syntax
+The `REBOOT` application is used to restart a running system from an
+operating system prompt.  It can invoke either a warm or cold restart
+via command line switches.
 
-`HTALK COMn:`
+#### Syntax
 
-## Usage
+| `REBOOT /W`
+| `REBOOT /C`
+| `REBOOT /?`
 
-`HTALK` operates at the HBIOS level.
+- /C initiates a cold restart
+- /W initiates a warm restart
+- /? displays command line usage
 
-The parameter to `TALK` refers to a HBIOS character unit.  Upon
-execution all characters typed at the console will be sent to the
-device specified and all characters received by the specified device
-will be echoed on the console.
+#### Usage
 
-Press Control+Z on the console to terminate the application.
+Entering `REBOOT` with no parameters will display the usage and
+version information.  Use /C or /W to immediately initiate a 
+cold or warm restart.
 
-## Notes
+#### Notes
 
+A warm restart just returns to the Boot Loader menu.
 
-## Etymology
+A cold restart will reinitialize the system as though power had
+been recycled.
 
-The `TALK` command was created and donated to RomWBW by Tom Plano.  It
-is an original product designed specifically for RomWBW.
+#### Etymology
+
+The `REBOOT` application was custom written for RomWBW by MartinR. All 
+of the hardware interface code is specific to RomWBW and the application
+will not operate correctly on non-RomWBW systems.
+
+The source code is provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# RTC
+## RTC
+
+| RTC                 |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |yes|
 
 Many RomWBW systems provide real time clock hardware.  The RTC
 application is a simple, interactive program allowing you to display
 and set the time and registers of the RTC.
 
-## Syntax
+#### Syntax
 
 `RTC`
 
-## Usage
+#### Usage
 
 After startup, the application provides the following options:
 
@@ -709,7 +1834,7 @@ After startup, the application provides the following options:
 | `B)oot`     | will reboot your system.                               |
 | `H)elp`     | displays brief help.                                   |
 
-## Notes
+#### Notes
 
 When using Get and Put options, the register number to read/write is
 entered in hex.  The non-volatile ram register numbers are 0x20-0x3F.
@@ -721,7 +1846,7 @@ the two hex characters.  Yes, this should be improved.
 The `RTC` application interacts directly with the RTC hardware
 bypassing HBIOS.
 
-## Etymology
+#### Etymology
 
 The `RTC` application was originally written by Andrew Lynch as part of
 the original ECB SBC board development.  It has since been modified to
@@ -729,308 +1854,254 @@ support most of the hardware variations included with RomWBW.
 
 `\clearpage`{=latex}
 
-# TIMER
-
-Most RomWBW systems have a 50Hz periodic system timer.  A counter is
-incremented every time a timer tick occurs.  The `TIMER` application
-displays the value of the counter.
-
-## Syntax
-
-`TIMER`
-`TIMER /?`
-`TIMER /C`
+## SURVEY
 
-## Usage
+| SURVEY              |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-Use `TIMER` to display the current value of the counter.
+The `SURVEY` command interrogates the system for information on disk
+usage, memory usage and I/O ports used, and reports it to the user.
 
-Use `TIMER /C` to display the value of the counter continuously.
+#### Syntax
 
-The display of the counter will be something like this:
+The `SURVEY` command takes no arguments.
 
-`00045444 Ticks, 0000162A.10 Seconds`
+| `SURVEY`
 
-The first number is the total number of ticks since system startup.
-The second number is the total number of seconds since system startup.
+#### Usage
 
-## Notes
+The results presented by `SURVEY` include:
 
-The seconds value is displayed with a fractional value which is not a
-an actual fraction, but rather the number of ticks past the seconds
-rollover.  All values are in hex.
+1. Information about any drives, within the first eight (ie A: to H:), 
+which have been logged by the system. This includes: the total number 
+of files; the storage capacity occupied by those files; and the capacity 
+remaining on that drive.
 
-The primary use of the `TIMER` application is to test the system
-timer functionality of your system.
+1. Information about the the 64KByte CP/M memory map, which is shown 
+diagramatically, and includes: locations and sizes of the TPA (Transient Program Area), 
+CP/M's CCP (Console Command Processor),and BDOS (Basic Disk Operating System).
 
-In theory, you could capture the value before and after some process
-you want to time.
+1. The addresses of active CPU I/O ports.
 
-## Etymology
+#### Notes
 
-The `TIMER` command is an original product and the source code is
-provided in the RomWBW distribution.
+The mechanism by which `SURVEY` discovers I/O ports is very conservative and 
+therefore the list returned may not be exhaustive. In particular, it may fail to 
+discover ports that are 'write-only'.
 
 `\clearpage`{=latex}
 
-# INTTEST
-
-RomWBW includes an API allowing applications to "hook" interrupts.
-The `INTTEST` application allows you to test this functionality.
-
-## Syntax
-
-`INTTEST`
-
-## Usage
-
-`INTTEST` is an interactive application.  At startup, it will display
-a list of the interrupt vector slots in your system along with the
-current vector address for each of them.
+## SYSCOPY
 
-It then prompts you to enter the slot number (in hex) of a vector to
-hook.  After entering this, the application will watch the hooked
-vector and countdown from 0xFF to 0x00 as interrupts are noted.
+| SYSCOPY             |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-When the counter reaches 0x00, the interrupt is unhooked and the
-application terminates.  The application can also be terminated by
-pressing <esc>.
-
-## Notes
-
-If your system is running without interrupts active, the application
-will terminate immediately.
-
-All slots have vectors even if the corresponding interrupt is not
-doing anything.  In this case, the vector is pointing to the "bad
-interrupt" handler.
-
-If you hook a vector that is not receiving any interrupts, the
-downcounter will not do anything.
-
-## Etymology
-
-The `INTTEST` command is an original product and the source code is
-provided in the RomWBW distribution.
-
-`\clearpage`{=latex}
+To make disk media bootable, you must write a system boot image onto
+the system tracks of the of the media. The `SYSCOPY` allows you to
+read or write the system boot image of disk media.
 
-# FAT
+#### Syntax
 
-The operating systems included with RomWBW do not have any native
-ability to access MS-DOS FAT filesystems. The FAT application can be
-used overcome this. It will allow you to transfer files between CP/M
-and FAT filesystems (wildcards supported). It can also erase files,
-format, and list directories of FAT filesystems.
+| `SYSCOPY `*`<dest>`*`=`*`<src>`*
 
-## Syntax
+*`<dest>`* is the drive to receive the operating system image or
+alternatively a filename to save the operating system image
 
-| `FAT DIR `*`<path>`*
-| `FAT COPY `*`<src> <dst>`*
-| `FAT REN `*`<from> <to>`*
-| `FAT DEL `*`<path>[<file>|<dir>]`*
-| `FAT MD `*`<path>`*
-| `FAT FORMAT `*`<drv>`*
+*`<src>`* is the drive containing an operating system image or
+alternatively a filename containing the system image to be placed on
+the destination
 
-| *`<path>`* is a FAT path
-| *`<src>`*, *`<dst>`* are FAT or CP/M filenames
-| *`<from>`*, *`<to>`* are FAT filenames
-| *`<file>`* is a FAT filename
-| *`<dir>`* is a FAT directory name
-| *`<drv>`* is a RomWBW disk unit number
+#### Usage
 
-| CP/M filespec: *`<d>`*`:FILENAME.EXT` (*`<d>`* is CP/M drive letter A-P)
-| FAT filespec: *`<u>`*`:/DIR/FILENAME.EXT` (*`<u>`* is RomWBW disk unit #)
+Both *`<dest>`* and *`<src>`* can refer to either a drive letter or a
+file. If a drive letter is specified, the system boot image will be
+read or written to the system tracks of the drive. If a filename is
+specified, the system boot image will be read or written to the
+specified filename.
 
-## Usage
+`SYSCOPY C:=ZSYS.SYS` will read a system boot image from the file
+ZSYS.SYS and write it onto the system tracks of drive C:.
 
-The `FAT` application determines whether you are referring to a CP/M
-filesystem or a FAT filesystem based on the way you specify the file
-or path. If the file or path is prefixed with a number (n:), then it
-is assumed this is a FAT filesystem reference and is referring to the
-FAT filesystem on RomWBW disk unit 'n'. Otherwise, the file
-specification is assumed to be a normal CP/M file specification.
+`SYSCOPY A:OS.SYS=C:` will capture the system boot image from the
+system tracks of drive C: and store it in the file A:OS.SYS.
 
-If you wanted to list the directory of the FAT filesystem on RomWBW
-disk unit 2, you would use `FAT DIR 2:`. If you only wanted to see the
-".TXT" files, you would use `FAT DIR 2:*.TXT`.
+`SYSCOPY D:=C:` will copy the system tracks from drive C: onto the
+system tracks of drive D:.
 
-If you wanted to copy all of the files on CP/M drive B: to the FAT
-filesystem on RomWBW disk unit 4, you would use the command `FAT COPY
-B:*.* 4:` If you wanted to copy the files to the "FOO" directory, then
-you would use `FAT COPY B:*.* 4:\FOO`. To copy files in the opposite
-direction, you just reverse the parameters.
+#### Notes
 
-To rename the file "XXX.DAT" to "YYY.DAT" on a FAT filesystem, you
-could use a command like "FAT REN 2:XXX.DAT 2:YYY.DAT".
+The RomWBW ROM disk contains files with the system boot image for
+Z-System and CP/M 2.2. These files are called CPM.SYS and ZSYS.SYS
+respectively. These files can be used as the source of a `SYSCOPY`
+command to make a disk bootable with the corresponding operating
+system.
 
-To delete a file "XXX.DAT" on a FAT filesystem in directory "FOO", you
-would use a command like `FAT DEL 2:\FOO\XXX.DAT`.
+CP/M 3 uses a two phase boot process. To make a CP/M 3 drive bootable,
+you need to put "CPMLDR.SYS" on the boot tracks of the disk and be
+sure that the drive also contains the "CPM.SYS" file. The "CPMLDR.SYS"
+file is not included on the ROM disk, but is found on the CP/M 3 disk
+image.
 
-To make a directory called "FOO2" on a FAT filesystem, you would use a
-command line `FAT MD 2:\FOO2`.
+ZPM3 is similar to CP/M 3. You also put "CPMLDR.SYS" on the system
+tracks of the drive to make it bootable. The ZPM3 operating system is
+in the file called "CPM3.SYS" on the ZPM3 disk image. It may seem
+confusing that ZPM3 is in the file called CPM3.SYS, but it is normal
+for ZPM3.
 
-To format the filesystem on a FAT partition, you would use a command
-like `FAT FORMAT 2:`. Use this with caution because it will destroy
-all data on any pre-existing FAT filesystem on disk unit 2.
+For the purposes of booting an operating system, each disk slice is
+considered its own operating system. Each slice can be made bootable
+with its own system tracks.
 
-## Notes
+`SYSCOPY` uses drive letters to specify where to read/write the system
+boot images. However, at startup, the boot loaded will require you to
+enter the actual disk device and slice to boot from. So, you need to
+be careful to pay attention to the device and slice that is assigned
+to a drive letter so you will know what to enter at the boot loader
+prompt. By way of explanation, the boot loader does not know about
+drive letters because the operating system is not loaded yet.
 
-Partitioned or non-partitioned media is handled automatically. A
-floppy drive is a good example of a non-partitioned FAT filesystem and
-will be recognized. Larger media will typically have a partition
-table which will be recognized by the application to find the FAT
-filesystem.
+If you want to put a boot system image on a device and slice that is
+not currently assigned to a drive letter, you will need to assign a
+drive letter first.
 
-Although RomWBW-style CP/M media does not know anything about
-partition tables, it is entirely possible to have media that
-has both CP/M and FAT file systems on it.  This is accomplished
-by creating a FAT filesystem on the media that starts on a track
-beyond the last track used by CP/M.  Each CP/M slice can occupy
-up to 8MB.  So, make sure to start your FAT partition beyond
-(slice count) * 9MB.
+Not all disk formats include space for system tracks. Such disk
+formats cannot contains a system boot image and, therefore, cannot be
+made bootable. The best example of such disk formats are the ROM and
+RAM disks. To maximize usable file space on these drives, they do not
+have system tracks. Obviously, ROM operating system is supported by
+choosing a ROM operating system at the boot loader prompt. Any attempt
+to write a system boot image to disk media with no system tracks will
+cause SYSCOPY to fail with an error message.
 
-The application infers whether you are attempting to reference a FAT
-or CP/M filesystem via the drive specifier (char before ':'). A
-numeric drive character specifies the HBIOS disk unit number for FAT
-access. An alpha (A-P) character indicates a CP/M file system access
-targeting the specified drive letter. If there is no drive character
-specified, the current CP/M filesystem and current CP/M drive is
-assumed. For example:
+The system boot images are paired with the ROM version in your system.
+So, you must take care to update the system tracks of any bootable
+disk when you upgrade your ROM firmware.
 
-| `2:README.TXT` refers to FAT file "README.TXT" on disk unit #2
-| `C:README.TXT` refers to CP/M file "README.TXT" on CP/M drive C
-| `README.TXT` refers to CP/M file "README.TXT" on the current CP/M drive
+The system boot images are **not** tied to specific hardware
+configurations. System boot images and operating systems provided with
+RomWBW will work with any supported RomWBW platform or hardware as
+long as they are the same version as the RomWBW firmware.
 
-Files with SYS, HIDDEN, or R/O only attributes are not given any
-special treatment. Such files are found and processed like any other
-file. However, any attempt to write to a read-only file will fail and
-the application will abort.
+#### Etymology
 
-It is not currently possible to reference CP/M user areas other than
-the current user. To copy files to alternate user areas, you must
-switch to the desired user number first or use an additional step to
-copy the file to the desired user area.
+The `SYSCOPY` command is an original product and the source code is
+provided in the RomWBW distribution.
 
-Accessing FAT filesystems on a floppy requires the use of RomWBW HBIOS
-v2.9.1-pre.13 or greater.
+`\clearpage`{=latex}
 
-Only the first 8 RomWBW disk units (0-7) can be referenced.
+## TALK
 
-Files written are not verified.
+| TALK                |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-Wildcard matching in FAT filesystems is a bit unusual as implemented by
-FatFs. See FatFs documentation.
+It is sometimes useful to direct your console input/output to a
+designated serial port.  For example, if you were to connect a modem
+to your second serial port, you might want to connect directly to it
+and have everything you type sent to it and everything it sends be
+shown on your console.  The `TALK` application does this.
 
-The `FAT FORMAT` command will not perform a physical format on floppy 
-disks.  You must use FDU to do this prior to using `FAT FORMAT`.
+#### Syntax
 
-Formatting (`FAT FORMAT`) of floppies does not work well.  The    
-underlying FatFs library uses some non-standard fields.  The resulting 
-floppy may or may not be useable on other systems.  It is best to format
-a FAT floppy on a Windows or DOS system.  You should have no problems 
-copying files to/from such a floppy using `FAT`.
+`TALK [TTY:|CRT:|BAT:UC1:]`
 
-## Etymology
+#### Usage
 
-The `FAT` application is an original RomWBW work, but utilizes the
-FsFat library for all of the FAT filesystem work. This application is
-written in C and requires SDCC to compile. As such it is not part of
-the RomWBW build process. However, the full project and source code is
-found in the [FAT GitHub Repository](https://github.com/wwarthen/FAT).
+`TALK` operates at the operating system level (not HBIOS).
 
-## Known Issues
+The parameter to `TALK` refers to logical CP/M serial devices.  Upon
+execution all characters typed at the console will be sent to the
+device specified and all characters received by the specified device
+will be echoed on the console.
 
-CP/M (and workalike) OSes have significant restrictions on filename
-characters.  The FAT application will block any attempt to create a
-file on the CP/M filesystem containing any of these prohibited
-characters:
+Press Control+Z on the console to terminate the application.
 
-|         `< > . , ; : ? * [ ] |/ \`
+#### Notes
 
-The operation will be aborted with "`Error: Invalid Path Name`" if such
-a filename character is encountered.
+This application is designed for CP/M 2.2 or Z-System.  Use on later
+operating systems such as CP/M 3 is not supported.
 
-Since MS-DOS does allow some of these characters, you can have
-issues when copying files from MS-DOS to CP/M if the MS-DOS filenames
-use these characters.  Unfortunately, FAT is not yet smart enough to
-substitute illegal characters with legal ones.  So, you will need to
-clean the filenames before trying to copy them to CP/M.
+#### Etymology
 
-The FAT application does try to detect the scenario where you are
-copying a file to itself.  However, this detection is not perfect and
-can corrupt a file if it occurs.  Be careful to avoid this.
+The `TALK` command is an original product and the source code is
+provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# CLRDIR
-
-`CLRDIR` is used to initialize a CP/M filesystem.  This is frequently
-used to prepare RomWBW disk slices for use.  If there is any data
-on the filesystem, it will be destroyed.  `CLRDIR` works on CP/M
-drive letters.  To initialize a RomWBW slice, the slice must first be
-assigned to a CP/M drive letter.
+## TIMER
 
+| TIMER               |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
 
-This application is provided by Max Scane.
-
-## Syntax
+Most RomWBW systems have a 50Hz periodic system timer.  A counter is
+incremented every time a timer tick occurs.  The `TIMER` application
+displays the value of the counter.
 
-| `CLRDIR `*`<drive>`*` [options]`
+#### Syntax
 
-*`<drive>`* is the CP/M drive letter to be cleared (e.g., "A:")
+`TIMER`
+`TIMER /?`
+`TIMER /C`
 
+#### Usage
 
-Options:
+Use `TIMER` to display the current value of the counter.
 
-| `-D`: Enable debug output
-| `-Y`: Do not ask for confirmation
+Use `TIMER /C` to display the value of the counter continuously.
 
-## Usage
+The display of the counter will be something like this:
 
-This application has a command line interface only.  Type an 
-appropriately formatted command at the command prompt at any of the 
-RomWBW CP/M operatings systems (CP/M 2.2, ZSDOS, CP/M 3, etc.).
+`13426 Ticks     268.52 Seconds`
 
-You will be prompted for confirmation to continue.  You must type a
-**capital** 'Y' to proceed.  The application will confirm that the
-drive has been cleared.
+The first number is the total number of ticks since system startup, where 
+there are 50 ticks per second. The second number is the total number of 
+seconds since system startup. Numbers are displayed in decimal format.
 
-If used under ZSDOS, you should issue a `RELOG` command after using
-`CLRDIR` to ensure that CP/M relogs the cleared drive.
+#### Notes
 
-## Notes
+The seconds value is displayed with a fractional value which is not a
+an actual fraction, but rather the number of ticks past the seconds
+rollover.  All values are in hex.
 
-This command is inherently dangerous.  It will completely destroy the
-directory area of the target drive.  Be very careful to ensure you do
-not target a drive that contains useful data.
+The primary use of the `TIMER` application is to test the system
+timer functionality of your system.
 
-`CLRDIR` understands the directory formats of all of the RomWBW
-CPM-like operating systems and devices including floppy disks, CF/SD
-Cards, etc.
+In theory, you could capture the value before and after some process
+you want to time.
 
-## Etymology
+#### Etymology
 
-This application was written and provided by Max Scane. He
-provides it in binary format and is included in the RomWBW
-distribution as a binary file.
+The `TIMER` command is an original product and the source code is
+provided in the RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# TUNE
+## TUNE
+
+| TUNE                |   |
+| --------------------|---|
+| ROM-based           |No |
+| Disk-based          |Yes|
 
 If your RomWBW system has a sound card based on either an AY-3-8190 or
 YM2149F sound chip, you can use the `TUNE` application to play PT or
 MYM sound files.
 
-## Syntax
+#### Syntax
 
 `TUNE `*`<filename>`*
 
 *`<filename>`* is the name of a sound file ending in .PT2, .PT3, or
 .MYM
 
-## Usage
+#### Usage
 
 The TUNE application supports PT and YM sound file formats. It
 determines the format of the file from the extension of the file, so
@@ -1040,7 +2111,7 @@ To play a sound file, just use the command and specify the file to
 play after the command. So, for example, `TUNE ATTACK.PT2` will
 immediately begin playing the PT sound file "ATTACK.PT2".
 
-## Notes
+#### Notes
 
 The `TUNE` application automatically probes for compatible hardware at
 well known port addresses at startup. It will auto-configure itself
@@ -1078,7 +2149,7 @@ The HBIOS mode also support other switch as described below.
 All RomWBW operating system boot disks include a selection of sound
 files in user area 3.
 
-## Etymology
+#### Etymology
 
 The `TUNE` application was custom written for RomWBW. All of the
 hardware interface code is specific to RomWBW. The sound file decoding
@@ -1088,77 +2159,14 @@ is (c)2004-2007 S.V.Bulba <vorobey@mail.khstu.ru>.
 
 The source code is provided in the RomWBW distribution.
 
-# CPUSPD
-
-The `CPUSPD` application is used to change the running speed and wait
-states of a RomWBW system.
-
-  The functionality is highly dependent on
-the capabilities of your system.
-
-At present, all Z180 systems can change their CPU speed and their
-wait states.  SBC and MBC systems may be able to change their CPU
-speed if the hardware supports it and it is enabled in the HBIOS
-configuration.
-
-## Syntax
-
-| `CPUSPD [`*`<speed>`*`[,[`*`<memws>`*`][,[`*`<iows>`*`]]]`
-
-*`<speed>`* is one of HALF, FULL, or DOUBLE.  
-*`<memws>`* is a number specifying the desired memory wait states.  
-*`<iows>`* is a number specifying the desired I/O wait states.
-
-## Usage
-
-Entering `CPUSPD` with no parameters will display the current CPU speed
-and wait state information of the running system.  Wait state
-information is not available for all systems.
-
-To modify the running speed of a system, you can specify the
-`*`<speed>`*` parameter.  To modify either or both of the wait
-states, you can enter the desired number.  Either or both of the wait
-state parameters may be omitted and the current wait state settings
-will remain in effect.
-
-## Notes
-
-The ability to modify the running speed and wait states of a system
-varies widely depending on the hardware capabilities and the HBIOS
-configuration settings.
-
-Note that it is frequently impossible to tell if a system is capable
-of dynamic speed changes.  This function makes the changes blindly.
-If an attempt is made to change the speed of a system
-that is definitely incapable of doing so, then an error result is
-returned.
-
-The `CPUSPD` command makes no attempt to ensure that the new CPU
-speed will actually work on the current hardware.  Setting a CPU
-speed that exceeds the capabilities of the system will result in
-unstable operation or a system stall.
-
-Some peripherals are dependent on the CPU speed.  For example, the Z180
-ASCI baud rate and system timer are derived from the CPU speed.  The
-CPUSPD application will attempt to adjust these peripherals for
-correct operation after modifying the CPU speed.  However, in some
-cases this may not be possible.  The baud rate of ASCI ports have a
-limited set of divisors.  If there is no satisfactory divisor to
-retain the existing baud rate under the new CPU speed, then the baud
-rate of the ASCI port(s) will be affected.
-
-## Etymology
-
-The `CPUSPD` application was custom written for RomWBW. All of the
-hardware interface code is specific to RomWBW and the application will
-not operate correctly on non-RomWBW systems.
-
-The source code is provided in the RomWBW distribution.
-
-
 `\clearpage`{=latex}
 
-# VGMPLAY
+## VGMPLAY
+
+| VGMPLAY             |   |
+| --------------------|---|
+| ROM-based           |No |
+| Disk-based          |Yes|
 
 This application will allow you to play Video Game Music files. VGM 
 files contain music samples from a range of different sound chips 
@@ -1189,17 +2197,18 @@ Sound chips currently supported are:
 VGMPLAY supports playback of files with multiple combinations of these
 chips.
 
-## Syntax
+#### Syntax
 
 `VGMPLAY `*`<filename>`*
 
 *`<filename>`* is the name of a sound file ending in .VGM
 
-## Usage
+#### Usage
 
 VGMPLAY does not automatically detect the hardware platform or sound
 hardware that you are using. This means a version customized for your
-system must be assembled before use.
+system must be assembled before use. However, the version as distributed
+will work with ECB bus SBC systems.
 
 To play a sound file, just use the VGMPLAY command and specify the file
 to play after the command. So, for example, `VGMPLAY TEDDY` will load
@@ -1208,7 +2217,7 @@ the TEDDY.VGM sound file into memory and begin playing it.
 Playback can be stopped by pressing a key. There may be a delay before
 playback stops.
 
-## Notes
+#### Notes
 
 The default build configuration for VGMPLAY is:
 
@@ -1235,16 +2244,21 @@ RomWBW distribution.
 
 `\clearpage`{=latex}
 
-# WDATE
+## WDATE
+
+| WDATE               |   |
+| --------------------|---|
+| ROM-based           |No |
+| Disk-based          |Yes|
 
 `wdate` is a utility for CP/M systems that have Wayne Warthen's
-ROMWBW firmware. It reads or sets the real-time clock, using function
+RomWBW firmware. It reads or sets the real-time clock, using function
 calls in the BIOS. It should work on any RTC device that is supported by
-ROMWBW, including the internal interrupt-driven timer that is is available
+RomWBW, including the internal interrupt-driven timer that is is available
 on some systems. 
 
 `wdate` differs from the `rtc.com` utility that is provided with the
-ROMWBW version of CP/M in that it only gets and sets the date/time. 
+RomWBW version of CP/M in that it only gets and sets the date/time. 
 `rtc.com` can also manipulate the nonvolatile RAM in certain clock
 devices, and modify the charge controller. However, `wdate` is (I would
 argue) easier to use, as it takes its input from the command line, which
@@ -1259,14 +2273,14 @@ application for two reasons: first, the BIOS does not expose it. Second,
 there is no universally-accepted way to interpret it (which day does
 the week start on? Is '0' a valid day of the week?)
 
-## Syntax
+#### Syntax
 
 | `WDATE`
 | `WDATE ` *`<hr> <min>`*
 | `WDATE ` *`<hr> <min> <sec>`*
 | `WDATE ` *`<year> <month> <day> <hr> <min> <sec>`*
 
-## Usage
+#### Usage
 
     A> wdate
     Saturday 27 May 13:14:39 2023
@@ -1292,25 +2306,112 @@ two-digit year starts at 2000.
 
 Show a summary of the command-line usage.
 
-## Notes
+#### Notes
 
 I've tested this utility with the DS1302 clock board designed by Ed 
 Brindly, and on the interrupt-driven timer built into my Z180 board. 
 However, it does not interact with hardware, only BIOS; I would expect 
 it to work with other hardware.
 
-wdate checks for the non-existence of ROMWBW, and also for failing 
+wdate checks for the non-existence of RomWBW, and also for failing 
 operations on the RTC. It will display the terse "No RTC" message in 
 both cases.
 
-The ROMWBW functions that manipulate the date and time operate on BCD 
+The RomWBW functions that manipulate the date and time operate on BCD 
 numbers, as RTC chips themselves usually do. wdate works in decimal, so 
 that it can check that the user input makes sense. A substantial part of
 the program's code is taken up by number format conversion and range 
 checking.
 
-## Etymology
+#### Etymology
 
 The `WDATE` application was written and contributed by Kevin Boone.
 The source code is available on GitHub at
-[https://github.com/kevinboone/wdate-cpm/blob/main/README.md](https://github.com/kevinboone/wdate-cpm/blob/main/README.md).
+<https://github.com/kevinboone/wdate-cpm/blob/main/README.md>.
+
+`\clearpage`{=latex}
+
+## XM
+
+| XM                  |   |
+| --------------------|---|
+| ROM-based           |Yes|
+| Disk-based          |Yes|
+
+An adaptation of Ward Christensen's X-Modem protocol for transferring
+files between systems using a serial port.
+
+#### Syntax
+
+| `XM S `*`<filename>`*
+| `XM SK `*`<filename>`*
+| `XM L `*`<library> <filename>`*
+| `XM LK `*`<library> <filename>`*
+| `XM R `*`<filename>`*
+
+`S`: Send a file
+`L`: Send a file from a library
+`R`: Receive a file
+`K`: Use 1K blocksize for transfer
+
+*`<filename>`* is the name of a file to send or receive
+
+*`<library>`* is the name of a library (.lbr) to extract a file to send
+
+#### Usage
+
+To transfer a file from your host computer to your RomWBW computer, do
+the following:
+
+1. Enter one of the `XM` receive commands specifying the name you want
+to give to the received file.
+
+2. On your host computer select a file to send and initiate the XModem
+send operation.
+
+To transfer a file from your RomWBW computer to your host computer, do
+the following:
+
+1. Enter one of the `XM` send commands specifying the name of the file
+to be sent.
+
+2. On your host computer, specify the name to assign to the received
+file and initiate and XModem receive operation.
+
+Please refer to the documentation of your host computer's terminal
+emulation software for specific instructions on how to use XModem.
+
+#### Notes
+
+The XModem adaptation that comes with RomWBW will automatically use
+the primary character device unit (character device unit 0) for the
+file transfer.
+
+`XM` attempts to determine the best way to drive the serial port based
+on your hardware configuration. When possible, it will bypass the
+HBIOS for faster operation. However, in many cases, it will use HBIOS
+so that flow control can be used.
+
+`XM` is dependent on a reliable communications channel. You must
+ensure that the serial port can be serviced fast enough by either
+using a baud rate that is low enough or ensuring that hardware flow
+control is fully functional (end to end).
+
+#### Etymology
+
+The `XM` application provided in RomWBW is an adaptation of a
+pre-existing XModem application. Based on the source code comments, it
+was originally adapted from Ward Christensen's MODEM2 by Keith
+Petersen and is labelled version 12.5.
+
+The original source of the application was found in the Walnut Creek
+CD-ROM and is called XMDM125.ARK dated 7/15/86.
+
+The actual application is virtually untouched in the RomWBW
+adaptation. The majority of the work was in the modem driver which was
+enhanced to detect the hardware being used and dynamically choose the
+appropriate driver.
+
+The source code is provided in the RomWBW distribution.
+
+`\clearpage`{=latex}
diff --git a/Source/Doc/Basic.h b/Source/Doc/Basic.h
index 87447530..def9b838 100644
--- a/Source/Doc/Basic.h
+++ b/Source/Doc/Basic.h
@@ -1,6 +1,7 @@
 $define{doc_ver}{Version 3.5}$
 $define{doc_product}{RomWBW}$
-$define{doc_root}{https://github.com/wwarthen/RomWBW/raw/dev/Doc}$
+$define{file_root}{https://github.com/wwarthen/RomWBW/raw/master}$
+$define{doc_root}{$file_root$/Doc}$
 $ifndef{doc_title}$ $define{doc_title}{Document Title}$ $endif$
 $ifndef{doc_author}$ $define{doc_author}{Wayne Warthen}$ $endif$
 $define{doc_date}{$date{%d %b %Y}$}$
@@ -10,7 +11,6 @@ $define{doc_orgurl}{www.retrobrewcomputers.org}$
 $define{doc_user}{[RomWBW User Guide]($doc_root$/RomWBW User Guide.pdf)}$
 $define{doc_sys}{[RomWBW System Guide]($doc_root$/RomWBW System Guide.pdf)}$
 $define{doc_apps}{[RomWBW Applications]($doc_root$/RomWBW Applications.pdf)}$
-$define{doc_romapps}{[RomWBW ROM Applications]($doc_root$/RomWBW ROM Applications.pdf)}$
 $define{doc_catalog}{[RomWBW Disk Catalog]($doc_root$/RomWBW Disk Catalog.pdf)}$
 $define{doc_errata}{[RomWBW Errata]($doc_root$/RomWBW Errata.pdf)}$
 
diff --git a/Source/Doc/Build.cmd b/Source/Doc/Build.cmd
index 14ac1187..3736b6b5 100644
--- a/Source/Doc/Build.cmd
+++ b/Source/Doc/Build.cmd
@@ -2,8 +2,12 @@
 setlocal
 
 ::
-:: NOTE: Pandoc and Latex (MiKTeX or TexLive) must be installed
-:: and available on commandline for this build to work!!!
+:: NOTE: Pandoc, LuaLatex (MiKTeX or TexLive), and Roboto Font
+:: must be installed and available on commandline for this build to work!!!
+::
+:: - Pandoc (https://pandoc.org/)
+:: - MiKTeX (https://miktex.org/)
+::   - Install Roboto font from MiKTeX Console
 ::
 
 set TOOLS=..\..\Tools
@@ -11,20 +15,18 @@ set PATH=%TOOLS%\gpp;%PATH%
 
 if not "%1"=="" (call :GenDoc %1 & goto :eof)
 
-call :GenDoc ReadMe
-call :GenDoc UserGuide
-call :GenDoc SystemGuide
-call :GenDoc Applications
-call :GenDoc ROM_Applications
-call :GenDoc Catalog
-call :GenDoc Errata
+call :GenDoc ReadMe || exit /b
+call :GenDoc UserGuide || exit /b
+call :GenDoc SystemGuide || exit /b
+call :GenDoc Applications || exit /b
+call :GenDoc Catalog || exit /b
+call :GenDoc Errata || exit /b
 
 if exist ReadMe.gfm copy Readme.gfm ..\..\ReadMe.md || exit /b
 if exist ReadMe.txt copy ReadMe.txt ..\..\ReadMe.txt || exit /b
 if exist UserGuide.pdf copy UserGuide.pdf "..\..\Doc\RomWBW User Guide.pdf" || exit /b
 if exist SystemGuide.pdf copy SystemGuide.pdf "..\..\Doc\RomWBW System Guide.pdf" || exit /b
 if exist Applications.pdf copy Applications.pdf "..\..\Doc\RomWBW Applications.pdf" || exit /b
-if exist ROM_Applications.pdf copy ROM_Applications.pdf "..\..\Doc\RomWBW ROM Applications.pdf" || exit /b
 if exist Catalog.pdf copy Catalog.pdf "..\..\Doc\RomWBW Disk Catalog.pdf" || exit /b
 if exist Errata.pdf copy Errata.pdf "..\..\Doc\RomWBW Errata.pdf" || exit /b
 
@@ -37,9 +39,6 @@ echo.
 
 echo Processing document %1...
 
-::gpp -o %1.tmp %1.md
-::gpp -o %1.tmp -U "\\" "" "{" "}{" "}" "{" "}" "#" "" %1.md
-::gpp -o %1.tmp -U "" "" "(" "," ")" "(" ")" "#" "" -M "#" "\n" " " " " "\n" "(" ")" %1.md
 gpp -o %1.tmp -U "$" "$" "{" "}{" "}$" "{" "}" "@@@" "" -M "$" "$" "{" "}{" "}$" "{" "}" %1.md || exit /b
 
 ::pandoc %1.tmp -f markdown -t latex -s -o %1.tex --default-image-extension=pdf || exit /b
diff --git a/Source/Doc/Catalog.md b/Source/Doc/Catalog.md
index 8250a8b8..47afb6a0 100644
--- a/Source/Doc/Catalog.md
+++ b/Source/Doc/Catalog.md
@@ -1,5 +1,5 @@
 $define{doc_title}{Disk Catalog}$
-$define{doc_author}{Mykl Orders}$
+$define{doc_author}{Mark Pruden \& Mykl Orders}$
 $define{doc_authmail}{}$
 $include{"Book.h"}$
 
@@ -10,17 +10,20 @@ distributed with RomWBW.  Specifically, RomWBW provides a set
 of floppy and hard disk images in the Binary directory of the
 distribution.  The contents of these images is listed here.
 
-**NOTE:** This document has become somewhat out-of-date.  I apologize
-for this.  It is very difficult to maintain due to the volume of
-disk content updates and the way that files are dynamically merged
-into disk images during the build process.
-
 The files on the disk images were sourced from a variety of locations.
 The primary sources of these files are listed below.  Note that the
 primary documentation for each of these sources is listed.  You are
 strongly encouraged to refer to this documentation for more information
 on using the applications and files listed.
 
+This document primarily describes to contents of the hard disk images.
+Floppy disk images may contain a cut down (sub-set) of the files on
+a hard disk. This is of course to conserve disk space
+
+Note: This document received a major update in October 2024, when
+while still not fully complete, most of the core operating system
+disks should now be fully described.
+
 ## Sources
 
 - **RomWBW**: RomWBW Custom Applications
@@ -75,718 +78,1255 @@ on using the applications and files listed.
 
 `\clearpage`{=latex}
 
-# CPM 2.2 Boot Disk
+# Operating System Boot Disks
+
+RomWBW contains several ready-to-run disks, that have been
+adapted for RomWBW.  Theses disks are bootable as is 
+(the operating system image is already embedded in the system tracks) 
+and can be launched from the RomWBW Loader prompt.
+
+Each Disk contains the following file
+
+| **File**                 | **Description**                             |
+|--------------------------|---------------------------------------------|
+| `README.TXT`             | Information about the Operating System      |
+
+## CP/M 2.2
+
+A vanilla distribution of DRI's CP/M-80 2.2 adapted for RomWBW.  
 
 | Floppy Disk Image: **fd_cpm22.img**
 | Hard Disk Image: **hd_cpm22.img**
 | Combo Disk Image: **Slice 0**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ASM.COM`      | CPM22      | DRI 8080 Assembler |
-| `CR.COM`       |     --     | Crunch archiver |
-| `DDT.COM`      | CPM22      | DRI Dynamic Debugger |
-| `DDTZ.DOC`     |     --     | Z80 replacement for DDT |
-| `DIRX.COM`     |     --     | Directory lister with file sizes |
-| `DUMP.COM`     | CPM22      | DRI type contents of disk file in hex |
-| `ED.COM`       | CPM22      | DRI context editor |
-| `KERMIT.COM`   |     --     | Generic CP/M 2.2 Kermit communication application |
-| `LBREXT.COM`   |     --     | Extract library files |
-| `LIB.COM`      |     --     | DRI Library manager |
-| `LINK.COM`     |     --     | DRI CPM relocatable linker |
-| `LOAD.COM`     |     --     | DRI hex file loader into memory |
-| `MAC.COM`      |     --     | DRI CPM macro assembler |
-| `MBASIC.COM`   |     --     | Microsoft Basic |
-| `PIP.COM`      | CPM22      | DRI Periperal Interchange Program |
-| `PMARC.COM`    |     --     | LHA file compressor |
-| `PMEXT.COM`    |     --     | Extractor for PMARC archives |
-| `RMAC.COM`     |     --     | DRI Relocatable Macro Assembler |
-| `STAT.COM`     | CPM22      | DRI statistices about file storage and device  assignment |
-| `SUBMIT.COM`   | CPM22      | DRI batch processor |
-| `UNCR.COM`     |     --     | NZCOM Uncrunch decompression |
-| `UNZIP.COM`    |     --     | Extractor for ZIP archives |
-| `XSUB.COM`     | CPM22      | DRI eXtended submit |
-| `ZSID.COM`     |     --     | DRI Z80 symbolic instruction debugger |
-| `ASSIGN.COM`   | RomWBW     | RomWBW Drive/Slice mapper |
-| `FAT.COM`      | RomWBW     | RomWBW FAT filesystem access |
-| `FDU.COM`      | RomWBW     | RomWBW Floppy Disk Utility |
-| `FORMAT.COM`   | RomWBW     | RomWBW media formatter (placeholder) |
-| `INTTEST.COM`  | RomWBW     | RomWBW Interrupt test |
-| `MODE.COM`     | RomWBW     | RomWBW Modify serial port characteristics |
-| `RTC.COM`      | RomWBW     | RomWBW Display and set RTC |
-| `SURVEY.COM`   | RomWBW     | System survey |
-| `SYSCOPY.COM`  | RomWBW     | RomWBW Read/write system boot image |
-| `SYSGEN.COM`   | RomWBW     | DRI CPM SYSGEN to put CPM onto a new drive |
-| `TALK.COM`     | RomWBW     | RomWBW Direct console I/O to a serial port |
-| `TIMER.COM`    | RomWBW     | RomWBW Display timer tick counter |
-| `TUNE.COM`     | RomWBW     | RomWBW Play PT or MYM sound files |
-| `XM.COM`       | RomWBW     | RomWBW XMODEM file transfer |
-| `CPM.SYS`      | RomWBW     | CPM2.2 system image |
-| `CLRDIR.COM`   |     --     | Max Scane's disk directory cleaner |
-| `COMPARE.COM`  |     --     | FoxHollow compare two files |
-| `DDTZ.COM`     |     --     | Z80 replacement for DDT |
-| `FDISK80.COM`  |     --     | John Coffman's Partition editor for FAT filesystem |
-| `FLASH.COM`    |     --     | Will Sowerbutts' in-situ EEPROM programmer |
-| `NULU.COM`     |     --     | NZCOM new library utility |
-| `UNARC.COM`    |     --     | Extractor for ARC archives |
-| `ZAP.COM`      |     --     | Disk editor/patcher |
-| `ZDE.COM`      |     --     | Z-system display editor |
-| `ZDENST.COM`   |     --     | ZDE Installer |
-
-| **User 1**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `SAMPKEY.DOC`  |     --     | ZDE Distribution File |
-| `SAMPKEY.ZDK`  |     --     | ZDE Distribution File |
-| `SAMPKEY.ZDT`  |     --     | ZDE Distribution File |
-| `ZDE10.DOC`    |     --     | ZDE Distribution File |
-| `ZDE10.FOR`    |     --     | ZDE Distribution File |
-| `ZDE10.NEW`    |     --     | ZDE Distribution File |
-| `ZDE10.QRF`    |     --     | ZDE Distribution File |
-| `ZDE10.TOC`    |     --     | ZDE Distribution File |
-| `ZDE13.FOR`    |     --     | ZDE Distribution File |
-| `ZDE13.NEW`    |     --     | ZDE Distribution File |
-| `ZDE16.COM`    |     --     | ZDE Distribution File |
-| `ZDE16.DIR`    |     --     | ZDE Distribution File |
-| `ZDE16.FIX`    |     --     | ZDE Distribution File |
-| `ZDE16.FOR`    |     --     | ZDE Distribution File |
-| `ZDE16.NEW`    |     --     | ZDE Distribution File |
-| `ZDE16A.COM`   |     --     | ZDE Distribution File |
-| `ZDE16A.PAT`   |     --     | ZDE Distribution File |
-| `ZDENST16.COM` |     --     | ZDE Distribution File |
-| `ZDEPROP.DOC`  |     --     | ZDE Distribution File |
-| `ZDEPROP.Z80`  |     --     | ZDE Distribution File |
-| `ZDKCOM13.COM` |     --     | ZDE Distribution File |
-| `ZDKCOM13.DOC` |     --     | ZDE Distribution File |
-
-| **User 3**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ATTACK.PT3`   |     --     | Sound File |
-| `BACKUP.PT3`   |     --     | Sound File |
-| `BADMICE.PT3`  |     --     | Sound File |
-| `DEMO.MYM`     |     --     | Sound File |
-| `DEMO1.MYM`    |     --     | Sound File |
-| `DEMO3.MYM`    |     --     | Sound File |
-| `DEMO3MIX.MYM` |     --     | Sound File |
-| `DEMO4.MYM`    |     --     | Sound File |
-| `HOWRU.PT3`    |     --     | Sound File |
-| `ITERATN.PT3`  |     --     | Sound File |
-| `LOOKBACK.PT3` |     --     | Sound File |
-| `LOUBOUTN.PT3` |     --     | Sound File |
-| `NAMIDA.PT3`   |     --     | Sound File |
-| `RECOLL.PT3`   |     --     | Sound File |
-| `SANXION.PT3`  |     --     | Sound File |
-| `SYNCH.PT3`    |     --     | Sound File |
-| `TOSTAR.PT3`   |     --     | Sound File |
-| `VICTORY.PT3`  |     --     | Sound File |
-| `WICKED.PT3`   |     --     | Sound File |
-| `YEOLDE.PT3`   |     --     | Sound File |
-| `YEOVIL.PT3`   |     --     | Sound File |
+### CP/M 2.2 OS Files
+
+These are built and provide the OS. CP/M 2.2 Typically has no boot files 
+stored on the disk. It entirely boots from the system track
+
+The following files appear in User Area 0
+
+| **File**        | **Source**      | **Description**                    |
+|-----------------|-----------------|------------------------------------|
+| `CPM.SYS`       | RomWBW          | DRI CPM 2.2 Boot Image for SYSCOPY |
+
+### CP/M 2.2 Files
+
+The following CP/M 2.2 files were distributed by DRI with the operating
+system or as supplemental add-on programs.  They are documented in the
+"CP/M Manual.pdf" document in the Doc/CPM directory of the Rom WBW
+distribution.  
+
+The following files appear in User Area 0
+
+| **File**        | **Description**                                      |
+|-----------------|------------------------------------------------------|
+| `ASM.COM`       | DRI 8080 assembler                                   |
+| `DDT.COM`       | 8080 dynamic debugger                                |
+| `DUMP.COM`      | DRI type contents of file in hex                     |
+| `ED.COM`        | DRI line editor                                      |
+| `HELP.COM`      | CP/M 3 derived HELP display                          |
+| `HELP.HLP`      | CP/M 3 derived HELP data file                        |
+| `LIB.COM`       | DRI object file library manager                      |
+| `LINK.COM`      | DRI object file linker                               |
+| `LOAD.COM`      | DRI loader for Intel hex files                       |
+| `MAC.COM`       | DRI 8080 macro assembler                             |
+| `PIP.COM`       | DRI periperal interchange program                    |
+| `RMAC.COM`      | DRI 8080 relocating macro assembler                  |
+| `STAT.COM`      | DRI file/disk/device info & config                   |
+| `SUBMIT.COM`    | DRI batch file submission tool                       |
+| `XREF.COM`      | DRI assembler cross reference listing utility        |
+| `XSUB.COM`      | DRI batch file resident extension                    |
+| `ZSID.COM`      | DRI Z80 symbolic debugger                            |
+
+**NOTE:** The above files are also included in the NZCOM disk image.
+
+MAC, RMAC, XREF, and ZSID are supplemental programs from DRI
+with separate standalone documentation which is not included in the
+RomWBW package (but easily found on the Internet via Google search).
+
+### Additional Files
+
+| **File** | **Documentation**                  | **User Area** |
+|----------|------------------------------------|---------------|
+|          | [OS General Files]                 | 0             |
+|          | [General Purpose Applications]     | 0             |
+|          | [Testing Applications]             | 2             |
+|          | [Sample Audio Files]               | 3             |
+|          | [CP/NET 1.2]                       | 4             |
+|          | [SIMH Simulator]                   | 13            |
 
 `\clearpage`{=latex}
 
-# ZSDOS 1.1 Boot Disk
+## ZSDOS 1.1
+
+It contains a customized version of ZSDOS 1.1 for RomWBW.
+The disk is bootable as is (the operating system image is already
+embedded in the system tracks) and can be launched from the RomWBW
+Loader prompt.
+
+The starting point for the disk content was the final public release of
+ZSDOS which is generally available on the Internet. 
 
 | Floppy Disk Image: **fd_zsdos.img**
 | Hard Disk Image: **hd_zsdos.img**
 | Combo Disk Image: **Slice 1**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ASM.COM`      | CPM22      | DRI 8080 Assembler |
-| `CLOCKS.DAT`   | ZSDOS      | ZSDOS Library of clock drivers |
-| `COPY.CFG`     | ZSDOS      | ZSDOS Configuration file for COPY.COM |
-| `COPY.COM`     | ZSDOS      | ZSDOS File copier with file dates and archiving |
-| `COPY.UPD`     | ZSDOS      | ZSDOS ??? |
-| `CR.COM`       |     --     | Crunch archiver |
-| `DATSWEEP.COM` | ZSDOS      | ZSDOS Comprehensive file management utility |
-| `DDT.COM`      | CPM22      | DRI Dynamic Debugger |
-| `DDTZ.DOC`     |     --     | Z80 replacement for DDT |
-| `DIRX.COM`     |     --     | Directory lister with file sizes |
-| `DSCONFIG.COM` | ZSDOS      | ZSDOS DATSWEEP configuration tool |
-| `DUMP.COM`     | CPM22      | DRI type contents of disk file in hex |
-| `ED.COM`       | CPM22      | DRI context editor |
-| `FA16.CFG`     | ZSDOS      | ZSDOS FILEATTR.COM v1.6 configuration file |
-| `FA16.DOC`     | ZSDOS      | ZSDOS FILEATTR.COM v1.6 documentation |
-| `FA16A.FOR`    | ZSDOS      | ZSDOS FILEATTR.COM v1.6a information |
-| `FA16CFG.TXT`  | ZSDOS      | ZSDOS FILEATTR.COM v1.6 configuration instructions |
-| `FILEATTR.COM` | ZSDOS      | ZSDOS Modify file attributes |
-| `FILEDATE.CFG` | ZSDOS      | ZSDOS Configuration file for FILEDATE.COM |
-| `FILEDATE.COM` | ZSDOS      | ZSDOS Disk directory that allows sorting and selecting by date and name |
-| `FILEDATE.COM` | ZSDOS      | ZSDOS Disk directory that allows sorting and selecting by date and name |
-| `INITDIR.CFG`  | ZSDOS      | ZSDOS Configuration file for INITDIR.COM |
-| `INITDIR.COM`  | ZSDOS      | ZSDOS Prepare disks for P2DOS Stamps |
-| `KERMIT.COM`   |     --     | Generic CP/M 2.2 Kermit communication application |
-| `LBREXT.COM`   |     --     | Extract library files |
-| `LDDS.COM`     | ZSDOS      | Clock driver |
-| `LDNZT.COM`    | ZSDOS      | Clock driver |
-| `LDP2D.COM`    | ZSDOS      | Clock driver |
-| `LIB.COM`      |     --     | DRI Library manager |
-| `LINK.COM`     |     --     | DRI CPM relocatable linker |
-| `LOAD.COM`     |     --     | DRI hex file loader into memory |
-| `MAC.COM`      |     --     | DRI CPM macro assembler |
-| `MBASIC.COM`   |     --     | Microsoft Basic |
-| `PIP.COM`      | CPM22      | DRI Periperal Interchange Program |
-| `PMARC.COM`    |     --     | LHA file compressor |
-| `PMEXT.COM`    |     --     | Extractor for PMARC archives |
-| `PUTBG.COM`    | ZSDOS      | ZSDOS Prepare disk for backgrounder |
-| `PUTDS.COM`    | ZSDOS      | ZSDOS Prepare disk for datestamper |
-| `RELOG.COM`    | ZSDOS      | ZSDOS relog disks after program that bypasses BDOS |
-| `RMAC.COM`     |     --     | DRI Relocatable Macro Assembler |
-| `SETTERM.COM`  | ZSDOS      | ZSDOS Installs terminal control codes into DateSamper utilities |
-| `SETUPZST.COM` | ZSDOS      | ZSDOS Select clock driver |
-| `STAMPS.DAT`   | ZSDOS      | ZSDOS Library of stamping routines |
-| `STAT.COM`     | CPM22      | DRI statistices about file storage and device assignment |
-| `SUBMIT.COM`   | CPM22      | DRI batch processor |
-| `SUPERSUB.COM` | ZSDOS      |  |
-| `TD.CFG`       | ZSDOS      | ZSDOS Configuration file for TD.COM |
-| `TD.COM`       | ZSDOS      | ZSDOS Time/Date utility |
-| `TERMBASE.DAT` | ZSDOS      | ZSDOS Terminal information library for SETTERM |
-| `TESTCLOK.COM` | ZSDOS      | ZSDOS Test various clock drivers |
-| `UNCR.COM`     |     --     | NZCOM Uncrunch decompression |
-| `UNZIP.COM`    |     --     | Extractor for ZIP archives |
-| `XSUB.COM`     | CPM22      | DRI eXtended submit |
-| `ZCAL.COM`     | ZSDOS      | ZSDOS Show month calendar |
-| `ZCNFG.COM`    | ZSDOS      | ZSDOS Configure various utilities |
-| `ZCNFG24.CFG`  | ZSDOS      | ZSDOS Configuration file for ZCNFG.COM |
-| `ZPATH.COM`    | ZSDOS      | ZSDOS Set BDOS and/or ZCPR command path |
-| `ZSCONFIG.COM` | ZSDOS      | ZSDOS Dynamically regulate many of ZSDOS features |
-| `ZSID.COM`     |     --     | DRI Z80 symbolic instruction debugger |
-| `ZSVSTAMP.COM` | ZSDOS      | ZSDOS Save/restore file timestamp |
-| `ZSVSTAMP.DOC` | ZSDOS      | ZSDOS ZSVSTAMP.COM documentation |
-| `ZXD.CFG`      | ZSDOS      | ZSDOS Configuration file for ZXD.COM |
-| `ZXD.COM`      | ZSDOS      | ZSDOS Extended directory utility |
-| `ASSIGN.COM`   | RomWBW     | RomWBW Drive/Slice mapper |
-| `FAT.COM`      | RomWBW     | RomWBW FAT filesystem access |
-| `FDU.COM`      | RomWBW     | RomWBW Floppy Disk Utility |
-| `FORMAT.COM`   | RomWBW     | RomWBW media formatter (placeholder) |
-| `INTTEST.COM`  | RomWBW     | RomWBW Interrupt test |
-| `MODE.COM`     | RomWBW     | RomWBW Modify serial port characteristics |
-| `RTC.COM`      | RomWBW     | RomWBW Display and set RTC |
-| `SURVEY.COM`   | RomWBW     | System survey |
-| `SYSCOPY.COM`  | RomWBW     | RomWBW Read/write system boot image |
-| `SYSGEN.COM`   | RomWBW     | DRI CPM SYSGEN to put CPM onto a new drive |
-| `TALK.COM`     | RomWBW     | RomWBW Direct console I/O to a serial port |
-| `TIMER.COM`    | RomWBW     | RomWBW Display timer tick counter |
-| `TUNE.COM`     | RomWBW     | RomWBW Play PT or MYM sound files |
-| `XM.COM`       | RomWBW     | RomWBW XMODEM file transfer |
-| `ZSYS.SYS`     | RomWBW     | ZSDOS system image |
-| `CLRDIR.COM`   |     --     | Max Scane's disk directory cleaner |
-| `COMPARE.COM`  |     --     | FoxHollow compare two files |
-| `DDTZ.COM`     |     --     | Z80 replacement for DDT |
-| `FDISK80.COM`  |     --     | John Coffman's Partition editor for FAT filesystem |
-| `FLASH.COM`    |     --     | Will Sowerbutts' in-situ EEPROM programmer |
-| `NULU.COM`     |     --     | NZCOM new library utility |
-| `UNARC.COM`    |     --     | Extractor for ARC archives |
-| `ZAP.COM`      |     --     | Disk editor/patcher |
-| `ZDE.COM`      |     --     | Z-system display editor |
-| `ZDENST.COM`   |     --     | ZDE Installer |
-
-| **User 1**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `SAMPKEY.DOC`  |     --     | ZDE Distribution File |
-| `SAMPKEY.ZDK`  |     --     | ZDE Distribution File |
-| `SAMPKEY.ZDT`  |     --     | ZDE Distribution File |
-| `ZDE10.DOC`    |     --     | ZDE Distribution File |
-| `ZDE10.FOR`    |     --     | ZDE Distribution File |
-| `ZDE10.NEW`    |     --     | ZDE Distribution File |
-| `ZDE10.QRF`    |     --     | ZDE Distribution File |
-| `ZDE10.TOC`    |     --     | ZDE Distribution File |
-| `ZDE13.FOR`    |     --     | ZDE Distribution File |
-| `ZDE13.NEW`    |     --     | ZDE Distribution File |
-| `ZDE16.COM`    |     --     | ZDE Distribution File |
-| `ZDE16.DIR`    |     --     | ZDE Distribution File |
-| `ZDE16.FIX`    |     --     | ZDE Distribution File |
-| `ZDE16.FOR`    |     --     | ZDE Distribution File |
-| `ZDE16.NEW`    |     --     | ZDE Distribution File |
-| `ZDE16A.COM`   |     --     | ZDE Distribution File |
-| `ZDE16A.PAT`   |     --     | ZDE Distribution File |
-| `ZDENST16.COM` |     --     | ZDE Distribution File |
-| `ZDEPROP.DOC`  |     --     | ZDE Distribution File |
-| `ZDEPROP.Z80`  |     --     | ZDE Distribution File |
-| `ZDKCOM13.COM` |     --     | ZDE Distribution File |
-| `ZDKCOM13.DOC` |     --     | ZDE Distribution File |
-
-| **User 3**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ATTACK.PT3`   |     --     | Sound File |
-| `BACKUP.PT3`   |     --     | Sound File |
-| `BADMICE.PT3`  |     --     | Sound File |
-| `DEMO.MYM`     |     --     | Sound File |
-| `DEMO1.MYM`    |     --     | Sound File |
-| `DEMO3.MYM`    |     --     | Sound File |
-| `DEMO3MIX.MYM` |     --     | Sound File |
-| `DEMO4.MYM`    |     --     | Sound File |
-| `HOWRU.PT3`    |     --     | Sound File |
-| `ITERATN.PT3`  |     --     | Sound File |
-| `LOOKBACK.PT3` |     --     | Sound File |
-| `LOUBOUTN.PT3` |     --     | Sound File |
-| `NAMIDA.PT3`   |     --     | Sound File |
-| `RECOLL.PT3`   |     --     | Sound File |
-| `SANXION.PT3`  |     --     | Sound File |
-| `SYNCH.PT3`    |     --     | Sound File |
-| `TOSTAR.PT3`   |     --     | Sound File |
-| `VICTORY.PT3`  |     --     | Sound File |
-| `WICKED.PT3`   |     --     | Sound File |
-| `YEOLDE.PT3`   |     --     | Sound File |
-| `YEOVIL.PT3`   |     --     | Sound File |
+### ZSDOS 1.1 OS Files
+
+These are built and provide the OS. ZSDOS Typically has no boot files 
+stored on the disk. It entirely boots from the system track
+
+The following files appear in User Area 0
+
+| **File**          | **Source**           | **Description**              |
+|-------------------|----------------------|------------------------------|
+| `ZSYS.SYS`        | RomWBW               | ZSDOS Boot Image for SYSCOPY |
+
+### ZSDOS 1.1 Files
+
+The following files came from the official ZSDOS distribution.  These
+are generally documented in the "ZSDOS Manual.pdf" document in the Doc/CPM
+directory of the RomWBW distribution.  
+
+Note: Some of the files included in the ZSDOS distribution are not listed 
+below because they have been superseded by more recent versions listed in 
+other sections below.  
+
+The following files appear in User Area 0
+
+| **File**       | **Description**                                        |
+|----------------|--------------------------------------------------------|
+| `BGPATCH.HEX`  | Patches BackGrounder II for ZSDOS 1.1 compatibility    |
+| `CLOCKS.DAT`   | Library of clock drivers                               |
+| `COPY.UPD`     | Document describing updates to COPY program            |
+| `DATSWEEP.COM` | Comprehensive file management w/ date stamp awareness  |
+| `DSCONFIG.COM` | Program to configure DATSWEEP                          |
+| `FA16.CFG`     | ZCNFG configuration file for FILEATTR.COM              |
+| `FA16.DOC`     | Documentation for FILEATTR.COM                         |
+| `FA16A.FOR`    | Summary Information for FILEATTR.COM                   |
+| `FA16CFG.TXT`  | describes configuration options for FILEATTR.COM       |
+| `FILEATTR.COM` | Set and/or display file attributes                     |
+| `FILEDATE.COM` | Date/time stamping aware disk directory utility        |
+| `FILEDATE.CFG` | ZCNFG configuration fie for FILEDATE                   |
+| `INITDIR.COM`  | Prepare disk for P2DOS date/time stamping              |
+| `INITDIR.CFG`  | ZCNFG configuration file for INITDIR                   |
+| `LDDS.COM`     | Load DateStamper date/time stamping resident extension |
+| `LDNZT.COM`    | Load NZT date/time stamping resident extension         |
+| `LDP2D.COM`    | Load P2DOS date/time stamping resident extension       |
+| `PUTBG.COM`    | Updated replacement for BackGrounder II PUTBG program  |
+| `PUTDS.COM`    | Prepare disk for datestamper date/time stamping        |
+| `RELOG.COM`    | Clear fixed disk login vector in ZSDOS                 |
+| `SETTERM.COM`  | Terminal configuration utility for DATSWEEP & DSCONFIG |
+| `SETUPZST.COM` | Creates date/time stamping resident extensions         |
+| `STAMPS.DAT`   | Library of date/time stamping modules for SETUPZST     |
+| `TD.COM`       | Read and set system real-time clock                    |
+| `TD.CFG`       | ZCNFG Configuration file for TD.COM                    |
+| `TERMBASE.DAT` | Library of terminals used by SETTERM                   |
+| `TESTCLOK.COM` | Test a selected clock driver                           |
+| `ZCAL.COM`     | Display a small one-month calendar to the screen       |
+| `ZPATH.COM`    | Set or display ZSDOS and ZCPR search paths             |
+| `ZSCONFIG.COM` | Configure features of ZSDOS operating systems          |
+| `ZSVSTAMP.COM` | Preserves file date/time stamp across modifications    |
+| `ZSVSTAMP.DOC` | Document describes the use and operation of ZSVSTAMP   |
+
+**NOTE:** The above files are also included in the NZ-COM disk image distribution
+
+### Additional Files
+
+|     | **Documentation**                  | **User Area** |
+|-----|------------------------------------|---------------|
+|     | [CP/M 2.2 Files]                   | 0             |
+|     | [OS General Files]                 | 0             |
+|     | [General Purpose Applications]     | 0             |
+|     | [Testing Applications]             | 2             |
+|     | [Sample Audio Files]               | 3             |
+|     | [SIMH Simulator]                   | 13            |
 
 `\clearpage`{=latex}
 
-# NZCOM Boot Disk
+## NZCOM
+
+This disk contains NZ-COM, which is an implementation of the
+Z-System.  You may also see NZ-COM referred to as ZCPR 3.4.  This is
+a powerful replacement for CP/M 2.2 w/ full backward compatibility.
+NZ-COM is extremely configurable and far more powerful than
+DRI CP/M.  It is almost mandatory that you read the NZ-COM manual to
+use the system effectively.
 
 | Floppy Disk Image: **fd_nzcom.img**
 | Hard Disk Image: **hd_nzcom.img**
 | Combo Disk Image: **Slice 2**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `!(C)1988`     | NZCOM      |  |
-| `!NZ-COM`      | NZCOM      |  |
-| `!VERS--1.2H`  | NZCOM      |  |
-| `ALIAS.CMD`    | NZCOM      | NZCOM Aliases file for ARUNZ.COM |
-| `ARUNZ.COM`    | NZCOM      | NZCOM Invoke an alias in ALIAS.CMD |
-| `BGZRDS19.LBR` | NZCOM      |  |
-| `CLEDINST.COM` | NZCOM      | Command line editing and history shell installer |
-| `CLEDSAVE.COM` | NZCOM      | Write command line history to disk |
-| `CONFIG.LBR`   | NZCOM      |  |
-| `COPY.COM`     | NZCOM      | ZSDOS File copier with file dates and archiving |
-| `CPSET.COM`    | NZCOM      | NZCOM Create multiple definitions for CRT and PRT |
-| `CRUNCH.COM`   | NZCOM      | NZCOM Text compression |
-| `DOCFILES.LBR` | NZCOM      |  |
-| `EDITNDR.COM`  | NZCOM      | NZCOM Associate names with directories |
-| `FCP.LBR`      | NZCOM      | NZCOM ??? Flow control |
-| `FF.COM`       | NZCOM      | NZCOM File finder |
-| `HELP.COM`     | NZCOM      | DRI CPM+ |
-| `HLPFILES.LBR` | NZCOM      |  |
-| `IF.COM`       | NZCOM      | NZCOM  Flow condition tester for FCP |
-| `JETLDR.COM`   | NZCOM      | NZCOM General-purpose module loader |
-| `KERMIT.COM`   |     --     | Generic CP/M 2.2 Kermit communication application |
-| `LBREXT.COM`   | NZCOM      | Extract library files |
-| `LBRHELP.COM`  | NZCOM      |  |
-| `LDIR.COM`     | NZCOM      | NZCOM Display the directory of a library |
-| `LPUT.COM`     | NZCOM      | NZCOM Put files into a library |
-| `LSH-HELP.COM` | NZCOM      |  |
-| `LSH.COM`      | NZCOM      |  |
-| `LSH.WZ`       | NZCOM      |  |
-| `LSHINST.COM`  | NZCOM      |  |
-| `LX.COM`       | NZCOM      | NZCOM Extract and execute a memeber of a library |
-| `MKZCM.COM`    | NZCOM      | NZCOM NZCOM system defining utility |
-| `NAME.COM`     | NZCOM      | NZCOM Name a drive/user |
-| `NZ-DBASE.INF` | NZCOM      | NZCOM Dbase information |
-| `NZBLITZ.COM`  | NZCOM      |  |
-| `NZBLTZ14.CFG` | NZCOM      |  |
-| `NZBLTZ14.HZP` | NZCOM      |  |
-| `NZCOM.COM`    | NZCOM      | NZCOM system loader from CP/M |
-| `NZCOM.LBR`    | NZCOM      | NZCOM Library of NZCOM system modules |
-| `NZCPR.LBR`    | NZCOM      | NZCOM Default command processor |
-| `PATH.COM`     | NZCOM      | NZCOM Set/display command search path |
-| `PUBLIC.COM`   | NZCOM      |  |
-| `PWD.COM`      | NZCOM      |  |
-| `RCP.LBR`      | NZCOM      | NZCOM Resident command package |
-| `RELEASE.NOT`  | NZCOM      |  |
-| `SAINST.COM`   | NZCOM      |  |
-| `SALIAS.COM`   | NZCOM      | NZCOM Screen alias |
-| `SAVENDR.COM`  | NZCOM      | NZCOM Save named directory assignments to a file |
-| `SDZ.COM`      | NZCOM      | NZCOM Super directory |
-| `SHOW.COM`     | NZCOM      | NZCOM Show resident commands |
-| `SUB.COM`      | NZCOM      |  |
-| `SUBMIT.COM`   |     --     | DRI batch processor |
-| `TCAP.LBR`     | NZCOM      | NZCOM Terminal capability descriptor library |
-| `TCJ.INF`      | NZCOM      |  |
-| `TCJ25.WZ`     | NZCOM      |  |
-| `TCJ26.WZ`     | NZCOM      |  |
-| `TCJ27.WZ`     | NZCOM      |  |
-| `TCJ28.WZ`     | NZCOM      |  |
-| `TCJ29.WZ`     | NZCOM      |  |
-| `TCJ30.WZ`     | NZCOM      |  |
-| `TCJ31UPD.WZ`  | NZCOM      |  |
-| `TCJ32.WZ`     | NZCOM      |  |
-| `TCJ33UPD.WZ`  | NZCOM      |  |
-| `TCSELECT.COM` | NZCOM      | NZCOM Create terminal capability file |
-| `TY3ERA.COM`   | NZCOM      | NZCOM Type-3 transient program to erase a file |
-| `TY3REN.COM`   | NZCOM      | NZCOM Type-3 transient program to rename a file |
-| `TY4ERA.COM`   | NZCOM      | NZCOM Type-4 transient program to erase a file |
-| `TY4REN.COM`   | NZCOM      | NZCOM Type-4 transient program to rename a file |
-| `TY4SAVE.COM`  | NZCOM      | NZCOM Type-4 transient program to save memory to a file |
-| `TY4SP.COM`    | NZCOM      | NZCOM Type-4 transient program ti display disk space |
-| `UNCRUNCH.COM` | NZCOM      | NZCOM Text decompressor |
-| `VIEW.COM`     | NZCOM      |  |
-| `XTCAP.COM`    | NZCOM      |  |
-| `Z3LOC.COM`    | NZCOM      | NZCOM Display the addresses of the ZCPR3 CCP, BDOS, and BIOS |
-| `Z3TCAP.TCP`   | NZCOM      | NZCOM Database of terminal descriptors |
-| `ZCNFG.COM`    | NZCOM      | ZSDOS Configure various utilities |
-| `ZERR.COM`     | NZCOM      |  |
-| `ZEX.COM`      | NZCOM      | NZCOM Memory-based batch processor |
-| `ZF-DIM.COM`   | NZCOM      | NZCOM ZFILER shell for dim-video terminals |
-| `ZF-REV.COM`   | NZCOM      | NZCOM ZFILER shell for reverse-video terminals |
-| `ZFILEB38.LZT` | NZCOM      |  |
-| `ZFILER.CMD`   | NZCOM      | NZCOM Macro script file for ZFILER |
-| `ZHELPERS.LZT` | NZCOM      |  |
-| `ZLT.COM`      | NZCOM      |  |
-| `ZNODES66.LZT` | NZCOM      |  |
-| `ZSDOS.ZRL`    | NZCOM      |  |
-| `ZSYSTEM.IZF`  | NZCOM      |  |
-| `ASSIGN.COM`   | RomWBW     | RomWBW Drive/Slice mapper |
-| `FAT.COM`      | RomWBW     | RomWBW FAT filesystem access |
-| `FDU.COM`      | RomWBW     | RomWBW Floppy Disk Utility |
-| `FORMAT.COM`   | RomWBW     | RomWBW media formatter (placeholder) |
-| `INTTEST.COM`  | RomWBW     | RomWBW Interrupt test |
-| `MODE.COM`     | RomWBW     | RomWBW Modify serial port characteristics |
-| `RTC.COM`      | RomWBW     | RomWBW Display and set RTC |
-| `SURVEY.COM`   | RomWBW     | System survey |
-| `SYSCOPY.COM`  | RomWBW     | RomWBW Read/write system boot image |
-| `SYSGEN.COM`   | RomWBW     | DRI CPM SYSGEN to put CPM onto a new drive |
-| `TALK.COM`     | RomWBW     | RomWBW Direct console I/O to a serial port |
-| `TIMER.COM`    | RomWBW     | RomWBW Display timer tick counter |
-| `TUNE.COM`     | RomWBW     | RomWBW Play PT or MYM sound files |
-| `XM.COM`       | RomWBW     | RomWBW XMODEM file transfer |
-| `CPM.SYS`      | RomWBW     |  |
-| `ZSYS.SYS`     | RomWBW     |  |
-| `CLRDIR.COM`   |     --     | Max Scane's disk directory cleaner |
-| `COMPARE.COM`  |     --     | FoxHollow compare two files |
-| `DDTZ.COM`     |     --     | Z80 replacement for DDT |
-| `FDISK80.COM`  |     --     | John Coffman's Partition editor for FAT filesystem |
-| `FLASH.COM`    |     --     | Will Sowerbutts' in-situ EEPROM programmer |
-| `NULU.COM`     |     --     | NZCOM new library utility |
-| `UNARC.COM`    |     --     | Extractor for ARC archives |
-| `ZAP.COM`      |     --     | Disk editor/patcher |
-| `ZDE.COM`      |     --     | Z-system display editor |
-| `ZDENST.COM`   |     --     | ZDE Installer |
-
-| **User 3**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ATTACK.PT3`   |     --     | Sound File |
-| `BACKUP.PT3`   |     --     | Sound File |
-| `BADMICE.PT3`  |     --     | Sound File |
-| `DEMO.MYM`     |     --     | Sound File |
-| `DEMO1.MYM`    |     --     | Sound File |
-| `DEMO3.MYM`    |     --     | Sound File |
-| `DEMO3MIX.MYM` |     --     | Sound File |
-| `DEMO4.MYM`    |     --     | Sound File |
-| `HOWRU.PT3`    |     --     | Sound File |
-| `ITERATN.PT3`  |     --     | Sound File |
-| `LOOKBACK.PT3` |     --     | Sound File |
-| `LOUBOUTN.PT3` |     --     | Sound File |
-| `NAMIDA.PT3`   |     --     | Sound File |
-| `RECOLL.PT3`   |     --     | Sound File |
-| `SANXION.PT3`  |     --     | Sound File |
-| `SYNCH.PT3`    |     --     | Sound File |
-| `TOSTAR.PT3`   |     --     | Sound File |
-| `VICTORY.PT3`  |     --     | Sound File |
-| `WICKED.PT3`   |     --     | Sound File |
-| `YEOLDE.PT3`   |     --     | Sound File |
-| `YEOVIL.PT3`   |     --     | Sound File |
+### NZ-COM OS Files
+
+NZ-COM is not designed to load directly from the boot tracks of a
+disk.  Instead, it expects to be loaded from an already running OS.  
+
+This disk has been configured to boot using ZSDOS with a PROFILE.SUB 
+command file that automatically loads NZ-COM. So, NZ-COM will load completely 
+without any intervention, but you may notice that ZSDOS loads first, 
+then ZSDOS loads NZ-COM.
+
+The following files appear in User Area 0
+
+| **File**       | **Source** | **Description**                                    |
+|----------------|------------|----------------------------------------------------|
+| `!(C)1988`     | NZCOM      | Original copyright (since placed in public domain) |
+| `!NZ-COM`      | NZCOM      | Software marker directory entry (empty file)       |
+| `!VERS--1.2H`  | NZCOM      | Version marker directory entry (empty file)        |
+| `NZCOM.COM`    | NZCOM      | Loads and launches NZ-COM system                   |
+| `NZCOM.ENV`    | RomWBW     | Z-System environment descriptor                    |
+| `NZCOM.LBR`    | NZCOM      | Library of NZCOM system modules                    |
+| `NZCOM.ZCM`    | RomWBW     | Environment descriptor (alternate format)          |
+| `NZCPR.LBR`    | NZCOM      | Library of alternative ZCPR modules                |
+| `PROFILE.SUB`  | RomWBW     | Command file to auto-start NZ-COM at system boot   |
+| `RCP.LBR`      | NZCOM      | Library of alternative RCP modules                 |
+| `STARTZCM.COM` | RomWBW     | Commands to execute after NZ-COM is launched       |
+| `ZRDOS.ZRL`    | ZRDOS      | Relocatable version of ZRDOS BDOS module           |
+| `ZSDOS.ZRL`    | ZSDOS      | Relocatable version of ZSDOS 1.1 BDOS module       |
+| `ZSYS.SYS`     | RomWBW     | ZSDOS Boot Image for SYSCOPY                       |
+
+### NZ-COM Files
+
+The following files came from the official NZ-COM distribution.  These
+are generally documented in the "NZCOM Users Manual.pdf" document in
+the Doc/CPM directory of the RomWBW distribution.
+
+NOTE: It may appear theat there are not many files, this is because most of the OS
+files are shared with Z3PLUS. See here for a list [NZ-COM Z3PLUS OS Files]
+
+The following file are in User Area 15, and where noted 
+10 for help files, or 14 for config files.  
+
+| **File**       | **Description**                                          |
+|----------------|----------------------------------------------------------|
+| `ALIAS.CMD`    | Sample alias definitions for use with ARUNZ              |
+| `BGZRDS19.LBR` | Patch for Backgrounder II (U10)                          |
+| `CMDRUN.COM`   | Extended Command Processor (copied from ARUNZ)           |
+| `MKZCM.COM`    | Create/update NZ-COM load environment                    |
+| `NZBLITZ.COM`  | Rapid coldboot of complete NZ-COM system image           |
+| `NZBLTZ14.CFG` | ZCNFG configuration file for NZBLITZ. (U14)              |
+| `NZBLTZ14.HZP` | Help file for NZBLITZ (U10)                              |
+| `NZ-DBASE.INF` | dBase II application note regarding SUBMIT files (U10)   |
+| `PUBLIC.COM`   | Specify ZRDOS public directories/user areas              |
+| `RELEASE.NOT`  | Update information on NZ-COM (U10)                       |
+| `SUB.COM`      | Enhanced version of SUBMIT                               |
+
+### Additional Files
+
+|     | **Documentation**              | **User Area** |
+|-----|--------------------------------|---------------|
+|     | [Testing Applications]         | 2             |
+|     | [Sample Audio Files]           | 3             |
+|     | [CP/NET 1.2]                   | 4             |
+|     | [SIMH Simulator]               | 13            |
+|     | [CP/M 2.2 Files]               | 15            |
+|     | [ZSDOS 1.1 Files]              | 15, 14, 10    |
+|     | [NZ-COM Z3PLUS OS Files]       | 15, 14, 10    |
+|     | [OS General Files]             | 15, 14, 10    |
+|     | [General Purpose Applications] | 15, 10        |
 
 `\clearpage`{=latex}
 
-# CP/M 3 Boot Disk
+## CP/M 3
+
+A vanilla distribution of DRI's CP/M 3, also known as CP/M Plus adapted for RomWBW.
 
 | Floppy Disk Image: **fd_cpm3.img**
 | Hard Disk Image: **hd_cpm3.img**
 | Combo Disk Image: **Slice 3**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `DATE.COM`     | CPM3       | DRI CPM+ Set or display the date and time |
-| `DEVICE.COM`   | CPM3       | DRI CPM+ Assign logical devices with one or more physical devices |
-| `DIR.COM`      | CPM3       | DRI CPM+ DIR with options |
-| `DUMP.COM`     | CPM3       | DRI type contents of disk file in hex |
-| `ED.COM`       | CPM3       | DRI context editor |
-| `ERASE.COM`    | CPM3       | DRI file deletion |
-| `GENCOM.COM`   | CPM3       | DRI CPM+ Generate special COM file with attached RSX files |
-| `GET.COM`      | CPM3       | DRI CPM+ Temporarily get console input form a disk file |
-| `HELP.COM`     | CPM3       | DRI CPM+ Display information on how to use commands |
-| `HELP.HLP`     | CPM3       | DRI CPM+ Databse of help information for HELP.COM |
-| `HEXCOM.CPM`   | CPM3       | DRI CPM+ Create a COM file from a nex file output by MAC |
-| `INITDIR.COM`  | CPM3       | DRI CPM+ Initializes a disk to allow time and date stamping |
-| `KERMIT.COM`   |     --     | Generic CP/M 3 Kermit communication application |
-| `PATCH.COM`    | CPM3       | DRI CPM+ Display or install patch to the CPM+ system or command files |
-| `PIP.COM`      | CPM3       | DRI Periperal Interchange Program |
-| `PUT.COM`      | CPM3       | DIR CPM+ Temporarily redirect printer or console output to a disk file |
-| `RENAME.COM`   | CPM3       | DRI CPM+ Rename a file |
-| `ROMWBW.TXT`   | RomWBW     |  |
-| `SAVE.COM`     | CPM3       | DRI CPM+ Copy the contents of memory to a file |
-| `SET.COM`      | CPM3       | DIR CPM+ Set file options |
-| `SETDEF.COM`   | CPM3       | DIR CPM+ Set system options including the drive search chain |
-| `SHOW.COM`     | CPM3       | DIR CPM+ Display disk and drive statistics |
-| `SUBMIT.COM`   | CPM3       | DRI batch processor |
-| `TYPE.COM`     | CPM3       | DIR CPM+ Display the contents of an ASCII character file |
-| `ZSID.COM`     | CPM3       | DRI Z80 symbolic instruction debugger |
-| `CPMLDR.COM`   | RomWBW     | DRI CPM 3.0 loader |
-| `CPMLDR.SYS`   | RomWBW     | DRI CPM 3.0 loader |
-| `CCP.COM`      | CPM3       | DRI CPM+ Console Command Processor |
-| `GENCPM.COM`   | CPM3       | DRI CPM+ Create a memory image of CPM3.SYS |
-| `GENRES.DAT`   | RomWBW     |  |
-| `GENBNK.DAT`   | RomWBW     |  |
-| `BIOS3.SPR`    | RomWBW     | DRI CPM+ GENCPM input file for non-banked BIOS |
-| `BNKBIOS3.SPR` | RomWBW     | DRI CPM+ GENCPM input file for banked BIOS |
+### CP/M 3 OS Files
+
+The following files appear in User Area 0
+
+| **File**       | **Source** | **Description**                                    |
+|----------------|------------|----------------------------------------------------|
 | `BDOS3.SPR`    | CPM3       | DRI CPM+ GENCPM input file for the non-banked BDOS |
-| `BNKBDOS3.SPR` | CPM3       | DRI CPM+ GENCPM input file for banked BDOS |
-| `RESBDOS3.SPR` | CPM3       | DRI CPM+ GENCPM input file for resident BDOS |
-| `CPM3RES.SYS`  | RomWBW     | DRI CPM+ (non-banked) memory image |
-| `CPM3BNK.SYS`  | RomWBW     | DRI CPM+ (banked) memory image |
-| `GENCPM.DAT`   | RomWBW     | DRI CPM+ System generation tool data file |
-| `CPM3.SYS`     | RomWBW     | DRI CPM+ (non-banked) memory image |
-| `README.1ST`   | CPM3       |  |
-| `CPM3FIX.PAT`  | CPM3       |  |
-| `ASSIGN.COM`   | RomWBW     | RomWBW Drive/Slice mapper |
-| `FAT.COM`      | RomWBW     | RomWBW FAT filesystem access |
-| `FDU.COM`      | RomWBW     | RomWBW Floppy Disk Utility |
-| `FORMAT.COM`   | RomWBW     | RomWBW media formatter (placeholder) |
-| `INTTEST.COM`  | RomWBW     | RomWBW Interrupt test |
-| `MODE.COM`     | RomWBW     | RomWBW Modify serial port characteristics |
-| `RTC.COM`      | RomWBW     | RomWBW Display and set RTC |
-| `SURVEY.COM`   | RomWBW     | System survey |
-| `SYSCOPY.COM`  | RomWBW     | RomWBW Read/write system boot image |
-| `SYSGEN.COM`   | RomWBW     | DRI CPM SYSGEN to put CPM onto a new drive |
-| `TALK.COM`     | RomWBW     | RomWBW Direct console I/O to a serial port |
-| `TIMER.COM`    | RomWBW     | RomWBW Display timer tick counter |
-| `TUNE.COM`     | RomWBW     | RomWBW Play PT or MYM sound files |
-| `XM.COM`       | RomWBW     | RomWBW XMODEM file transfer |
-| `CLRDIR.COM`   |     --     | Max Scane's disk directory cleaner |
-| `COMPARE.COM`  |     --     | FoxHollow compare two files |
-| `DDTZ.COM`     |     --     | Z80 replacement for DDT |
-| `FDISK80.COM`  |     --     | John Coffman's Partition editor for FAT filesystem |
-| `FLASH.COM`    |     --     | Will Sowerbutts' in-situ EEPROM programmer |
-| `NULU.COM`     |     --     | NZCOM new library utility |
-| `UNARC.COM`    |     --     | Extractor for ARC archives |
-| `ZAP.COM`      |     --     | Disk editor/patcher |
-| `ZDE.COM`      |     --     | Z-system display editor |
-| `ZDENST.COM`   |     --     | ZDE Installer |
-
-| **User 3**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ATTACK.PT3`   |     --     | Sound File |
-| `BACKUP.PT3`   |     --     | Sound File |
-| `BADMICE.PT3`  |     --     | Sound File |
-| `DEMO.MYM`     |     --     | Sound File |
-| `DEMO1.MYM`    |     --     | Sound File |
-| `DEMO3.MYM`    |     --     | Sound File |
-| `DEMO3MIX.MYM` |     --     | Sound File |
-| `DEMO4.MYM`    |     --     | Sound File |
-| `HOWRU.PT3`    |     --     | Sound File |
-| `ITERATN.PT3`  |     --     | Sound File |
-| `LOOKBACK.PT3` |     --     | Sound File |
-| `LOUBOUTN.PT3` |     --     | Sound File |
-| `NAMIDA.PT3`   |     --     | Sound File |
-| `RECOLL.PT3`   |     --     | Sound File |
-| `SANXION.PT3`  |     --     | Sound File |
-| `SYNCH.PT3`    |     --     | Sound File |
-| `TOSTAR.PT3`   |     --     | Sound File |
-| `VICTORY.PT3`  |     --     | Sound File |
-| `WICKED.PT3`   |     --     | Sound File |
-| `YEOLDE.PT3`   |     --     | Sound File |
-| `YEOVIL.PT3`   |     --     | Sound File |
+| `BIOS3.SPR`    | RomWBW     | DRI CPM+ GENCPM input file for non-banked BIOS     |
+| `BNKBIOS3.SPR` | RomWBW     | DRI CPM+ GENCPM input file for banked BIOS         |
+| `BNKBDOS3.SPR` | CPM3       | DRI CPM+ GENCPM input file for banked BDOS         |
+| `CCP.COM`      | CPM3       | DRI CPM+ Console Command Processor                 |
+| `CPM3.SYS`     | RomWBW     | DRI CPM+ (non-banked) memory image                 |
+| `CPM3RES.SYS`  | RomWBW     | DRI CPM+ (non-banked) memory image                 |
+| `CPM3BNK.SYS`  | RomWBW     | DRI CPM+ (banked) memory image                     |
+| `CPM3FIX.PAT`  | CPM3       | DRI CPM+ patch list                                |
+| `CPMLDR.COM`   | RomWBW     | DRI CPM 3.0 Boot Loader Application                |
+| `CPMLDR.SYS`   | RomWBW     | DRI CPM 3.0 Boot Loader for SYSCOPY                |
+| `GENBNK.DAT`   | RomWBW     | GENCPM config data file (banked)                   |
+| `GENRES.DAT`   | RomWBW     | GENCPM config data file (non-banked)               |
+| `GENCPM.DAT`   | RomWBW     | Current GENCPM config data file                    |
+| `GENCPM.COM`   | CPM3       | DRI CPM+ Create a memory image of CPM3.SYS         |
+| `RESBDOS3.SPR` | CPM3       | DRI CPM+ GENCPM input file for resident BDOS       |
+
+### CP/M 3 Files
+
+The following CP/M 3 files were distributed by DRI with the operating
+system or as supplemental add-on programs.  They are documented in the
+"CPM3 Command Summary.pdf" document in the Doc/CPM directory of the Rom WBW
+distribution. 
+
+The following files appear in User Area 0
+
+| **File**      | **Description**                                                        |
+|---------------|------------------------------------------------------------------------|
+| `DATE.COM`    | DRI CPM+ Set or display the date and time                              |
+| `DEVICE.COM`  | DRI CPM+ Assign logical devices with one or more physical devices      |
+| `DIR.COM`     | DRI CPM+ DIR with options                                              |
+| `DUMP.COM`    | DRI type contents of disk file in hex                                  |
+| `ED.COM`      | DRI CPM+ line editor                                                   |
+| `ERASE.COM`   | DRI CPM+ file deletion                                                 |
+| `GENCOM.COM`  | DRI CPM+ Generate special COM file with attached RSX files             |
+| `GET.COM`     | DRI CPM+ Temporarily get console input form a disk file                |
+| `HELP.COM`    | DRI CPM+ Display information on how to use commands                    |
+| `HELP.HLP`    | DRI CPM+ Databse of help information for HELP.COM                      |
+| `HEXCOM.COM`  | DRI CPM+ Create a COM file from a hex file output by MAC               |
+| `INITDIR.COM` | DRI CPM+ Initializes a disk to allow time and date stamping            |
+| `LIB.COM`     | DRI object file library manager                                        |
+| `LINK.COM`    | DRI object file linker                                                 |
+| `LOAD.COM`    | DRI loader for Intel hex files                                         |
+| `MAC.COM`     | DRI 8080 macro assembler                                               |
+| `PATCH.COM`   | DRI CPM+ Display or install patch to the CPM+ system or command files  |
+| `PIP.COM`     | DRI CPM+ Periperal Interchange Program                                 |
+| `PUT.COM`     | DIR CPM+ Temporarily redirect printer or console output to a disk file |
+| `RENAME.COM`  | DRI CPM+ Rename a file                                                 |
+| `RMAC.COM`    | DRI 8080 relocating macro assembler                                    |
+| `SAVE.COM`    | DRI CPM+ Copy the contents of memory to a file                         |
+| `SET.COM`     | DIR CPM+ Set file options                                              |
+| `SETDEF.COM`  | DIR CPM+ Set system options including the drive search chain           |
+| `SHOW.COM`    | DIR CPM+ Display disk and drive statistics                             |
+| `SUBMIT.COM`  | DRI CPM+ batch processor                                               |
+| `TYPE.COM`    | DRI CPM+ Display the contents of an ASCII character file               |
+| `XREF.COM`    | DRI assembler cross reference listing utility                          |
+| `ZSID.COM`    | DRI Z80 symbolic instruction debugger                                  |                                                                    |
+
+**NOTE:** The above files are also included in the ZPM3 and Z3PLUS disk images.
+
+ZSID is a supplemental program from DRI
+with separate standalone documentation which is not included in the
+RomWBW package (but easily found on the Internet via Google search).
+
+### Additional Files
+
+|     | **Documentation**                  | **User Area** |
+|-----|------------------------------------|---------------|
+|     | [OS General Files]                 | 0             |
+|     | [General Purpose Applications]     | 0             |
+|     | [Testing Applications]             | 2             |
+|     | [Sample Audio Files]               | 3             |
+|     | [CP/NET 1.2]                       | 4             |
+|     | [SIMH Simulator]                   | 13            |
 
 `\clearpage`{=latex}
 
-# ZPM3 Boot Disk
+## Z3PLUS
+
+### Z3PLUS OS Files
+
+Z3PLUS is not designed to load directly from the boot tracks of a
+disk.  Instead, it expects to be loaded from an already running OS.
+
+This disk has been configured to boot using CP/M 3 with a PROFILE.SUB
+command file that automatically loads Z3PLUS. So, Z3PLUS will load completely
+without any intervention, but you may notice that CP/M 3 loads first.
+
+The following Z3PLUS files appear in User Area 0
+
+| **File**       | **Source**  | **Description**                                    |
+|----------------|-------------|----------------------------------------------------|
+| `!(C)1988`     | Z3PLUS      | Original copyright (since placed in public domain) |
+| `!VERS--1.02F` | Z3PLUS      | Version marker directory entry (empty file)        |
+| `!Z3PLUS`      | Z3PLUS      | Software marker directory entry (empty file)       |
+| `NAMES.NDR`    | RomWBW      | Default Directory Names loaded at boot             |
+| `RCP.LBR`      | Z3PLUS      | Library of alternative RCP modules                 |
+| `PROFILE.SUB`  | RomWBW      | Command file to auto-start Z3PLUS at system boot   |
+| `STARTZ3P.COM` | RomWBW      | Commands to execute after Z3PLUS is launched       |
+| `Z3PLUS.COM`   | Z3PLUS      | Loads and launches Z3PLUS system                   |
+| `Z3PLUS.LBR`   | Z3PLUS      | Library of Z3PLUS system modules                   |
+
+### Z3PLUS Files
+
+The following files came from the official Z3PLUS distribution.  These
+are generally documented in the "Z3PLUS Users Manual.pdf" document in
+the Doc/CPM directory of the RomWBW distribution. Note:  
+
+NOTE: It may appear theat there are not many files, this is because most of the OS
+files are shared with NZCOM. See here for a list [NZ-COM Z3PLUS OS Files]
+
+The following file are in User Area 15, and where noted 10 for help files.
+
+| **File**       | **Description**                             |
+|----------------|---------------------------------------------|
+| `ALIAS.CMD`    | Sample alias definitions for use with ARUNZ |
+| `PATCHSK.SUB`  | Patch smartkey II v. 1.0A (U10)             |
+| `PATCH4SK.HEX` | Patch smartkey II v. 1.0A - Hex File (U10)  |
+| `RELEASE.NOT`  | Update information on Z3PLUS (U10)          |
+
+### Additional Files
+
+|     | **Documentation**              | **User Area** |
+|-----|--------------------------------|---------------|
+|     | [Testing Applications]         | 2             |
+|     | [Sample Audio Files]           | 3             |
+|     | [CP/NET 1.2]                   | 4             |
+|     | [SIMH Simulator]               | 13            |
+|     | [CP/M 3 Files]                 | 15            |
+|     | [NZ-COM Z3PLUS OS Files]       | 15, 14, 10    |
+|     | [OS General Files]             | 15, 14, 10    |
+|     | [General Purpose Applications] | 15, 10        |
+
+`\clearpage`{=latex}
+
+## ZPM3
+
+This is a generic ZPM3 adaptation for RomWBW.
 
 | Floppy Disk Image: **fd_zpm3.img**
 | Hard Disk Image: **hd_zpm3.img**
 | Combo Disk Image: **Slice 4**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `HELP.HLP`     | ZPM3       |  |
-| `ROMWBW.TXT`   | RomWBW     |  |
-| `ZPMLDR.COM`   | RomWBW     |  |
-| `ZPMLDR.SYS`   | RomWBW     |  |
-| `CPMLDR.COM`   | RomWBW     |  |
-| `CPMLDR.SYS`   | RomWBW     |  |
-| `CPM3.SYS`     | RomWBW     |  |
-| `ZCCP.COM`     | ZPM3       |  |
-| `ZINSTAL.ZPM`  | ZPM3       |  |
-| `STARTZPM.COM` | ZPM3       |  |
-| `MAKEDOS.COM`  | ZPM3       |  |
-| `GENCPM.DAT`   | RomWBW     |  |
-| `BNKBIOS3.SPR` | RomWBW     |  |
-| `BNKBDOS3.SPR` | ZPM3       |  |
-| `RESBDOS3.SPR` | ZPM3       |  |
-
-| **User 3**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ATTACK.PT3`   |     --     | Sound File |
-| `BACKUP.PT3`   |     --     | Sound File |
-| `BADMICE.PT3`  |     --     | Sound File |
-| `DEMO.MYM`     |     --     | Sound File |
-| `DEMO1.MYM`    |     --     | Sound File |
-| `DEMO3.MYM`    |     --     | Sound File |
-| `DEMO3MIX.MYM` |     --     | Sound File |
-| `DEMO4.MYM`    |     --     | Sound File |
-| `HOWRU.PT3`    |     --     | Sound File |
-| `ITERATN.PT3`  |     --     | Sound File |
-| `LOOKBACK.PT3` |     --     | Sound File |
-| `LOUBOUTN.PT3` |     --     | Sound File |
-| `NAMIDA.PT3`   |     --     | Sound File |
-| `RECOLL.PT3`   |     --     | Sound File |
-| `SANXION.PT3`  |     --     | Sound File |
-| `SYNCH.PT3`    |     --     | Sound File |
-| `TOSTAR.PT3`   |     --     | Sound File |
-| `VICTORY.PT3`  |     --     | Sound File |
-| `WICKED.PT3`   |     --     | Sound File |
-| `YEOLDE.PT3`   |     --     | Sound File |
-| `YEOVIL.PT3`   |     --     | Sound File |
-
-| **User 10**    | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ALIAS.HLP`    |     --     |  |
-| `HP-RPN.HLP`   |     --     |  |
-| `HP-ZP.HLP`    |     --     |  |
-| `IF.HLP`       |     --     |  |
-| `MENU.HLP`     |     --     |  |
-| `VLU.HLP`      |     --     |  |
-| `ZFHIST.HLP`   |     --     |  |
-| `ZFILER.HLP`   |     --     |  |
-| `ZFMACRO.HLP`  |     --     |  |
-| `ZP.HLP`       |     --     |  |
-
-| **User 14**    | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `COPY.CFG`     |     --     |  |
-| `ERASE.CFG`    |     --     |  |
-| `HELPC15.CFG`  |     --     |  |
-| `ZCNFG24.CFG`  |     --     |  |
-| `ZEX.CFG`      |     --     |  |
-| `ZF11.CFG`     |     --     |  |
-| `ZP17.CFG`     |     --     |  |
-
-| **User 15**    | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ALIAS.COM`    |     --     |  |
-| `ARUNZ.COM`    |     --     |  |
-| `COPY.COM`     |     --     |  |
-| `DATE.COM`     | CPM3       |  |
-| `DEV.COM`      |     --     |  |
-| `DEVICE.COM`   | CPM3       |  |
-| `DIR.COM`      | CPM3       |  |
-| `DISKINFO.COM` |     --     |  |
-| `DU.COM`       |     --     |  |
-| `DUMP.COM`     | CPM3       |  |
-| `ED.COM`       | CPM3       |  |
-| `ERASE.COM`    | CPM3       |  |
-| `GENCOM.COM`   | CPM3       |  |
-| `GENCPM.COM`   | CPM3       |  |
-| `GET.COM`      | CPM3       |  |
-| `GOTO.COM`     |     --     |  |
-| `HELP.COM`     | CPM3       |  |
-| `HEXCOM.COM`   | CPM3       |  |
-| `IF.COM`       |     --     |  |
-| `INITDIR.COM`  | CPM3       |  |
-| `KERMIT.COM`   | CPM3       |  |
-| `LBREXT.COM`   |     --     |  |
-| `LIB.COM`      |     --     |  |
-| `LINK.COM`     |     --     |  |
-| `LOADSEG.COM`  |     --     |  |
-| `MAC.COM`      |     --     |  |
-| `MBASIC.COM`   |     --     |  |
-| `NAMES.NDR`    |     --     |  |
-| `PATCH.COM`    | CPM3       |  |
-| `PIP.COM`      | CPM3       |  |
-| `PUT.COM`      | CPM3       |  |
-| `REMOVE.COM`   |     --     |  |
-| `RENAME.COM`   | CPM3       |  |
-| `RMAC.COM`     |     --     |  |
-| `RSXDIR.COM`   |     --     |  |
-| `SAINST.COM`   |     --     |  |
-| `SALIAS.COM`   |     --     |  |
-| `SAVE.COM`     | CPM3       |  |
-| `SET.COM`      | CPM3       |  |
-| `SETDEF.COM`   | CPM3       |  |
-| `SETPATH.COM`  |     --     |  |
-| `SHOW.COM`     | CPM3       |  |
-| `SUBMIT.COM`   | CPM3       |  |
-| `TCAP.Z3T`     |     --     |  |
-| `TYPE.COM`     | CPM3       |  |
-| `VERROR.COM`   |     --     |  |
-| `VLU.COM`      |     --     |  |
-| `XREF.COM`     |     --     |  |
-| `ZCNFG.COM`    |     --     |  |
-| `ZERASE.COM`   |     --     |  |
-| `ZEX.COM`      |     --     |  |
-| `ZFILER.COM`   |     --     |  |
-| `ZHELP.COM`    |     --     |  |
-| `ZP.COM`       |     --     |  |
-| `ZSHOW.COM`    |     --     |  |
-| `ZSID.COM`     |     --     |  |
-| `ZXD.COM`      |     --     |  |
-| `AUTOTOG.COM`  | ZPM3       |  |
-| `CLRHIST.COM`  | ZPM3       |  |
-| `SETZ3.COM`    | ZPM3       |  |
-| `ASSIGN.COM`   | RomWBW     |  |
-| `FAT.COM`      | RomWBW     |  |
-| `FDU.COM`      | RomWBW     |  |
-| `FORMAT.COM`   | RomWBW     |  |
-| `INTTEST.COM`  | RomWBW     |  |
-| `MODE.COM`     | RomWBW     |  |
-| `RTC.COM`      | RomWBW     |  |
-| `SURVEY.COM`   | RomWBW     |  |
-| `SYSCOPY.COM`  | RomWBW     |  |
-| `SYSGEN.COM`   | RomWBW     |  |
-| `TALK.COM`     | RomWBW     |  |
-| `TIMER.COM`    | RomWBW     |  |
-| `TUNE.COM`     | RomWBW     |  |
-| `XM.COM`       | RomWBW     |  |
-| `CLRDIR.COM`   |     --     |  |
-| `COMP.COM`     |     --     |  |
-| `DDTZ.COM`     |     --     |  |
-| `FDISK80.COM`  |     --     |  |
-| `FLASH.COM`    |     --     |  |
-| `NULU.COM`     |     --     |  |
-| `TCVIEW.COM`   |     --     |  |
-| `UNARC.COM`    |     --     |  |
-| `Z3LOC.COM`    |     --     |  |
-| `ZAP.COM`      |     --     |  |
-| `ZDE.COM`      |     --     |  |
-| `ZDENST.COM`   |     --     |  |
+Per ZPM3 standard, files are distributed across different user areas
+depending on their usage.  Normal applications are in user area 15.  Help
+files in user area 10.  Configuration files in user area 14.
+
+### ZPM3 OS Files
+
+The following files appear in User Area 0
+
+| **File**       | **Source** | **Description**                               |
+|----------------| ---------- |-----------------------------------------------|
+| `BNKBIOS3.SPR` | RomWBW     | Banked BIOS                                   |
+| `BNKBDOS3.SPR` | ZPM3       | Banked BDOS                                   |
+| `CPM3.SYS`     | RomWBW     | ZPM3 system file (See Note)                   |
+| `GENCPM.DAT`   | RomWBW     | DRI CPM+ System generation tool data file     |
+| `HELP.HLP`     | ZPM3       | System Help File                              |
+| `MAKEDOS.COM`  | ZPM3       | Utility to overlay your system file with ZPM3 |
+| `STARTZPM.COM` | RomWBW     | Commands to execute after ZPM is launched     |
+| `RESBDOS3.SPR` | ZPM3       | Resident BDOS                                 |
+| `ZCCP.COM`     | ZPM3       | ZCCP replacement for CCP.COM                  |
+| `ZINSTAL.ZPM`  | ZPM3       | Segment containing environment information    |
+| `ZPMLDR.COM`   | RomWBW     | ZPM3 Boot Loader Application                  |
+| `ZPMLDR.SYS`   | RomWBW     | ZPM3 Boot Loader for SYSCOPY                  |
+
+**NOTE:** Currently `GENCPM.COM` is located in User Area 15
+
+**NOTE:** The ZPM3 system file is called CPM3.SYS. This is the ZPM3 
+default configuration. It is done to maximize compatibility with CP/M 3. 
+
+Either ZPMLDR or CPMLDR can be used to launch ZPM3. CPMLDR is equivalent to ZPMLDR.
+
+The following files appear in User Area 15
+
+| **File**      | **Source** | **Description** |
+|---------------| ---------- |-----------------|
+| `AUTOTOG.COM` | ZPM3       |                 |
+| `CLRHIST.COM` | ZPM3       |                 |
+| `SETZ3.COM`   | ZPM3       |                 |
+
+### ZPM3 Files
+
+This is a generic ZPM3 adaptation for RomWBW.
+
+| **File**       | **User Area** | **Description**                                              |
+|----------------|---------------|--------------------------------------------------------------|
+| `ARUNZ.COM`    | 15            | Alias-RUN-forZ-System command alias exec (v1.1 Type3)        |
+| `DEV.COM`      | 15            |                                                              |
+| `DISKINFO.COM` | 15            | ZCPR utility which gives information about your disks.       |
+| `DU.COM`       | 15            |                                                              |
+| `ERASE.CFG`    | 14            |                                                              |
+| `GENCPM.COM`   | 15            | DRI CPM3 Utility to Create a memory image of CPM3.SYS        |
+| `GOTO.COM`     | 15            |                                                              |
+| `HELPC15.CFG`  | 14            |                                                              |
+| `HP-RPN.HLP`   | 10            | Help File for HP RPN Calculators ?                           |
+| `HP-ZP.HLP`    | 10            | Help File for HP ZP Calculators ?                            |
+| `IF.COM`       | 15            | Extended flow control tester for FCP (v1.6 Type 3)           |
+| `IF.HLP`       | 10            |                                                              |
+| `LOADSEG.COM`  | 15            | ZCCP Utility to Load RSXes, TCAPs and Named Directory files. |
+| `MENU.HLP`     | 10            |                                                              |
+| `NAMES.NDR`    | 15            | Default Directory Names loaded at boot                       |
+| `REMOVE.COM`   | 15            |                                                              |
+| `RSXDIR.COM`   | 15            | ZCPR Utility which displays RSXes in memory                  |
+| `SETPATH.COM`  | 15            | used to set the command search path.                         |
+| `VERROR.COM`   | 15            | Installs a resident error handler                            |
+| `VLU.COM`      | 15            | Video Library Utility views or extracts files from libraries |
+| `VLU.HLP`      | 10            |                                                              |
+| `XREF.COM`     | 15            |                                                              |
+| `ZERASE.COM`   | 15            |                                                              |
+| `ZFHIST.HLP`   | 10            |                                                              |
+| `ZFILER.COM`   | 15            | File management shell, with GUI.                             |
+| `ZFILER.HLP`   | 10            | Help file for ZFILER.COM                                     |
+| `ZF11.CFG`     | 14            |                                                              |
+| `ZFMACRO.HLP`  | 10            |                                                              |
+| `ZHELP.COM`    | 15            |                                                              |
+| `ZP.COM`       | 15            | Patch utility edits files, disk sectors, or memory           |
+| `ZP.HLP`       | 10            | Help File for ZP.COM                                         |
+| `ZP17.CFG`     | 14            |                                                              |
+| `ZSHOW.COM`    | 15            | displays amount of information about your Z-System           |
+
+### Additional Files
+
+|     | **Documentation**                  | **User Area** |
+|-----|------------------------------------|---------------|
+|     | [Testing Applications]             | 2             |
+|     | [Sample Audio Files]               | 3             |
+|     | [SIMH Simulator]                   | 13            |
+|     | [CP/M 3 Files]                     | 15            |
+|     | [OS General Files]                 | 15, 14, 10    |
+|     | [General Purpose Applications]     | 15, 10        |
+
+## QPM 2.7
+
+The following files came from from Microcode Consulting. The official
+distribution files can be found on the Microcode Consulting website at
+[https://www.microcodeconsulting.com/z80/qpm.htm].
+Also included in this image are debugz, and linkz frm the same company.
+
+This disk includes the standard DRI CP/M 2.2 files in addition to the
+QP/M files.  QP/M generally assumes you already had DRI CP/M 2.2
+prior to adding QP/M features.
+
+### QPM 2.7 OS Files
+
+These are built and provide the OS.
+QPM Typically has no boot files stored on the disk.
+It entirely boots from the system track
+
+The following files appear in User Area 0
+
+| **File**   | **Description**                                            |
+|------------|------------------------------------------------------------|
+| `QPM.SYS`  | RomWBW configured QP/M system image (for use with SYSCOPY) |                                                        
+
+The qpm.sys file and the QP/M image on the system
+tracks was created using QINSTALL with default settings EXCEPT
+for the two settings described under Notes (current drive/user
+storage address and TIMDAT vector).
+
+### QPM 2.7 Files
+
+The following files appear in User Area 0
+
+| **File**       | **Description**                                           |
+|----------------|-----------------------------------------------------------|
+| `D.COM`        | Directory lister                                          |
+| `DBGINST.COM`  | Configures DEBUGZ debugger                                |
+| `DEBUGZ.COM`   | Symbolic debugger for Z80                                 |
+| `DEBUGZ.HLP`   | Symbolic debugger help file                               |
+| `DHORIZ.COM`   | Version of directory lister for horizontal file sorting   |
+| `HELLO.QPM`    | Text file with QP/M version information                   |
+| `LZ.COM`       | Z80 Linking Loader                                        |
+| `QBACKUP.COM`  | Data backup application                                   |
+| `QINSTALL.COM` | QP/M installer / configurator                             |
+| `QPATCH.COM`   | Patches (customizes) a few QP/M applications              |
+| `QPIP.COM`     | QP/M enhanced version of CP/M 2.2 PIP application         |                                                          
+| `QPMCLK.MAC`   | Example of QP/M clock assembler routine                   |
+| `QPMCMDS.TXT`  | Brief summary of QP/M commands                            |
+| `QPMUTILS.TXT` | Brief summary of QP/M utilities                           |
+| `QSTAMP.COM`   | Initializes disk for date/time stamping                   |
+| `QSTAMPV.COM`  | Initializes disk for date/time stamping (vertical sort)   |
+| `QSTAMPX.COM`  | Initializes disk for date/time stamping (horizontal sort) |
+| `QSTAT.COM`    | QP/M enhanced version of CP/M 2.2 STAT application        |
+| `QSUB.COM`     | QP/M batch file submission program - Like SUBMIT          |
+| `QSWEEP.COM`   | QP/M directory sweep utility                              |
+| `QTERM.DAT`    | Terminal control codes used by DEBUGZ                     |
+| `QTERMS.LIB`   | Library of available terminal definitions                 |
+| `SETQTERM.COM` | Configures QTERM.DAT                                      |
+| `TDCNFG.COM`   | Configures date/time directory display preferences        |
+
+There are two text files (QPMCMDS.TXT and QPMUTILS.TXT) included.  
+These files have escape sequences imbedded in them which makes them 
+look a little strange depending on the terminal emulation you are using.
+
+### Additional Files
+
+|     | **Documentation**                  | **User Area** |
+|-----|------------------------------------|---------------|
+|     | [CP/M 2.2 Files]                   | 0             |
+|     | [OS General Files]                | 0             |
+|     | [General Purpose Applications]     | 0             |
+|     | [Testing Applications]             | 2             |
+|     | [Sample Audio Files]               | 3             |
+|     | [SIMH Simulator]                   | 13            |
 
 `\clearpage`{=latex}
 
-# WordStar 4 Application Disk
+# Common Disk Contents
+
+## CP/NET 1.2
+
+User area 4 contains a full implementation of the CP/NET 1.2 client 
+provided by Doug Miller. Please refer to
+[https://github.com/durgadas311/cpnet-z80] for more information, 
+complete documentation and the latest source code.
+
+Please refer to the RomWBW User Guide for instructions on installing
+and using these these packages. Either the MT011 RCBus module or the
+Duodyne Disk I/O board is required.  In general, to use CP/NET on RomWBW, 
+it is intended that you will extract the appropriate set of files 
+into your default directory in user area 0.
+
+The following are found in
+
+*  /Binary/CPNET
+
+| **File**        | **CP/NET Version**  | **OS**          | **Hardware**            |
+|-----------------|---------------------|-----------------|-------------------------|
+| CPN12MT.LBR     | CP/NET 1.2          | CP/M 2.2        | RCBus w/ MT011          |
+| CPN3MT.LBR      | CP/NET 3            | CP/M 3          | RCBus w/ MT011          |
+| CPN12DUO.LBR    | CP/NET 1.2          | CP/M 2.2        | Duodyne w/ Disk I/O     |
+| CPN3DUO.LBR     | CP/NET 3            | CP/M 3          | Duodyne w/ Disk I/O     |
+
+## General Purpose Applications
+
+The following files are general purpose an provided in (mostly) all OS images  
+
+The following files are found in
+
+* /Source/Apps/*
+* /Source/Images/Common/All
+* /Source/TastyBasic
+
+The following files provide specific functionality enabled by
+RomWBW enhancements.  These applications are typically documented in the
+"RomWBW Applications.pdf" document in the Doc directory of the
+RomWBW Distribution.
+
+| **File**       | **Source**      | **Description**                                               |
+|----------------|-----------------|---------------------------------------------------------------|
+| `ASSIGN.COM`   | RomWBW          | Assign,remove,swap drive letters of RomWBW disk slices        |
+| `CLRDIR.COM`   | Max Scane       | Initializes the directory area of a disk                      |  
+| `COPYSL.COM`   | M.Pruden        | Copy CPM Hard Disk Slices                                     |  
+| `COPYSL.DOC`   | M.Pruden        | Documentation for COPYSL.COM                                  |  
+| `CPUSPD.COM`   | RomWBW          | CPU Speed                                                     |  
+| `FAT.COM`      | RomWBW          | MS-DOS FAT filesystem tool (list, copy, delete, format, etc.) |  
+| `FDISK80.COM`  | John Coffman    | Hard disk partitioning tool                                   |  
+| `FDU.COM`      | RomWBW          | Floppy Disk Utility, Test and format floppy disks             |  
+| `FDU.DOC`      | RomWBW          | Documentation for FDU                                         |  
+| `FLASH.COM`    | Will Sowerbutts | Program FLASH chips in-situ                                   |  
+| `FLASH.DOC`    | Will Sowerbutts | Documentation for FLASH                                       |  
+| `FORMAT.COM`   | RomWBW          | Placeholder application with formatting instructions          |  
+| `HTALK.COM`    | Tom Plano       | Terminal utility talking directly to HBIOS Character Units    |  
+| `MODE.COM`     | RomWBW          | Change serial line characteristics (baud rate, etc.)          |  
+| `REBOOT.COM`   | MartinR         | Cold or Warm Boot the RomWBW System                           |  
+| `RTC.COM`      | Andrew Lynch    | Test real time clock hardware on your system                  |  
+| `SURVEY.COM`   | RomWBW          | Display system resources summary                              |  
+| `SYSCOPY.COM`  | RomWBW          | Copy system tracks to disks (make bootable)                   |  
+| `TALK.COM`     | RomWBW          | Route console I/O to & from specified serial port             |  
+| `TIMER.COM`    | RomWBW          | Test and display system timer ticks                           |  
+| `TUNE.COM`     | RomWBW          | Play .PT2, .PT3, and .MYM audio files on supported hardware   |  
+| `VGMPLAY.COM`  |                 | Simple player for VGM (Video Game Music) files.               |
+| `WDATE.COM`    | Kevin Boone     | Utility to configure RTC Date.                                |  
+| `XM.COM`       | RomWBW          | XModem file transfer application                              |  
+
+Then we have some more general purpose applcations.
+In general, there is no documentation for these applications included with the RomWBW
+distribution.  Some provide command line help themselves.  Some are fairly obvious.
+
+| **File**       | **Source**        | **Description**                                        |
+|----------------|-------------------|--------------------------------------------------------|
+| `BBCBASIC.COM` | R.T.Russell       | BBC BASIC CP/M Version                                 |
+| `BBCBASIC.TXT` | R.T.Russell       | Help file for BBC BASIC                                |
+| `COMPARE.COM`  |                   | Compare content of two files (binary)                  |                                                                 
+| `CRUNCH.COM`   |                   | Compress file(s) using Crunch algorithmn               |                                            
+| `CRUNCH28.CFG` |                   | ZCNFG configuration file for CRUNCH & UNCR             |                                            
+| `DDTZ.COM`     |                   | Z80 debug tool (modified to use RST 6)                 |                                             
+| `DDTZ.DOC`     |                   | Documentation for DDTZ                                 |  
+| `EX.COM`       |                   | Batch file processor (alternative to DRI SUBMIT)       |  
+| `FIND.COM`     | Jay Cotton        | Search all drives for a file ()                        |  
+| `GENHEX.COM`   |                   | Generates an Intel Hex file from the input file        |  
+| `LS.COM`       |                   | An alternative file listing to DIR                     |  
+| `LSWEEP.COM`   |                   | Extract and view member files of an .LBR archive       |  
+| `MBASIC.COM`   | Microsoft         | Microsoft BASIC language interpreter                   |  
+| `NULU.COM`     |                   | NZCOM new library utility (.LBR) management tool       |  
+| `PMARC.COM`    |                   | Create or add file(s) to LHA .PMA archive              |  
+| `PMEXT.COM`    |                   | Extract file(s) from .PMA/.LZH/.LHA archive            |  
+| `RMXSUB1.COM`  | Lars Nelson       | Remove XSUB1 RSX from memory                           |  
+| `SUPERSUB.COM` |                   | Enhanced replacement for DRI SUBMIT                    |  
+| `SUPERSUB.DOC` |                   | Documentation for SUPERSUB                             |  
+| `SYSGEN.COM`   | DRI               | Copy system tracks to disks                            |  
+| `TBASIC.COM`   | Dimitri Theulings | Tasty Basic. This also exists as a Rom appication      |
+| `TDLBASIC.COM` |                   | TDL Zapple 12K BASIC language interpreter              |  
+| `UNARC.COM`    |                   | Extract file(s) from .ARC or .ARK archive              |  
+| `UNARC.DOC`    |                   | Documentation for UNARC                                |  
+| `UNCR.COM`     |                   | Decompress Crunched file(s). See CRUNCH.COM            |  
+| `UNZIP.COM`    | Lars Nelson       | UNZIP extracts from MS-DOS ZIP files                   |  
+| `UNZIP.DOC`    |                   | Documentation for UNZIP                                |  
+| `XSUB1.COM`    | Lars Nelson       | Replacement for DRI XSUB                               |  
+| `ZAP.COM`      |                   | Interactive disk & file utility                        |  
+| `ZDE.COM`      |                   | Compact WordStar-like editor                           |  
+| `ZDE.DOC`      |                   | ZDE Documentation                                      |  
+| `ZDENST.COM`   |                   | Installation/configuration tool for ZDE                |  
+| `ZMRX.COM`     |                   |                                                        |  
+| `ZMTX.COM`     |                   |                                                        |  
+| `ZMD.COM`      | R.W.K             | Z80 RCP/M File Transfer Program (Robert W. Kramer III) |
+| `ZMP.COM `     |                   | ZModem communications program (dedicated port)         |  
+| `ZMP.DOC`      |                   | Documentation for ZMP                                  |  
+| `ZMP.HLP`      |                   | Help file for ZMP                                      |  
+| `ZMXFER.OVR`   |                   | Overlay file for ZMP                                   |  
+| `ZMTERM.OVR`   |                   | Overlay file for ZMP                                   |  
+| `ZMINIT.OVR`   |                   | Overlay file for ZMP                                   |  
+| `ZMCONFIG.OVR` |                   | Overlay file for ZMP                                   |  
+
+## OS General Files
+
+The following files are spcific files share across several OS's.  
+In general, there is no documentation for these applications included with 
+the RomWBW distribution.  Some provide command line help themselves.  
+Some are fairly obvious.
+
+The following files are found in
+
+*  /Source/Images/Common/CPM22 
+*  /Source/Images/Common/CPM3 
+*  /Source/Images/Common/Z
+*  /Source/Images/Common/Z3
+
+| **File**       | **Applicability** | **Description**                                       |
+|----------------|-------------------|-------------------------------------------------------|
+| `ALIAS.COM`    | Z3                | Create an Alias (v1.1)                                |
+| `ALIAS.HLP`    | Z3                | Help File for ALIAS.COM                               |
+| `COPY.COM`     | Z                 | File copier with ZSDOS date stamping awareness        |
+| `COPY.CFG`     | Z                 | ZCNFG configuration file for COPY application         |
+| `EDITNDR.COM`  | Z3                | Edit named directory register in memory.              |
+| `KERCPM22.COM` | CPM22             | Kermit communication application                      |
+| `KERCPM3.COM`  | CPM3              | Kermit communication application                      |
+| `LBREXT.COM`   | Z                 | Extract file from .LBR libraries                      |
+| `LBREX36.CFG`  | Z                 | ZCNFG configuration file for LBREXT                   |
+| `RZ.COM`       | CPM3              | Receive files with X/Y/ZModem (experimental)          |
+| `RZSC.FOR`     | CPM3              | Description of RZ/SZ programs                         |
+| `SAINST.COM`   | Z3                | Install/configure SALIAS.                             |
+| `SALIAS.COM`   | Z3                | Screen oriented alias editor. (v1.6)                  |
+| `SAVENDR.COM`  | Z3                | Writes the named directory to disk.                   |
+| `SDZ.COM`      | Z3                | Enhanced directory lister.                            |
+| `SCOPY.COM`    | Z3                | Screen-oriented file copy for ZCPR3                   |  
+| `SCOPY10.CFG`  | Z3                | ZCNFG configuration file for SCOPY                    |  
+| `SCOPY.HLP`    | Z3                | Primary help file for SCOPY                           |  
+| `SCOPY10F.HLP` | Z3                | Secondary help file for SCOPY                         |  
+| `SZ.COM`       | CPM3              | Send files with X/Y/ZModem (experimental)             |
+| `TCAP.Z3T`     | Z3                | Terminal capabilities for ZCPR3 (VT100)               |  
+| `TCSELECT.COM` | Z3                | NZCOM Create terminal capability file (newer version) |
+| `TCVIEW.COM`   | Z3                | View zcpr3 terminal capabilities                      |  
+| `UMAP.COM`     | Z3                | Shows directory usage                                 |  
+| `UMAP18.CFG`   | Z3                | ZCNFG configuration file for UMAP program             |  
+| `UNARCU1.CFG`  | Z                 | ZCNFG configuration file for UNARC program            |
+| `ZCNFG.COM`    | Z                 | Configuration tool for programs with .CFG files       |
+| `ZCNFG24.CFG`  | Z                 | Configuration file for ZCNFG.COM                      |
+| `ZEX.COM`      | Z3                | A memory-based command file processor, like SUBMIT    |
+| `ZEX.CFG`      | Z3                | ZCNFG configuration file for ZEX program              |
+| `ZXD.CFG`      | Z                 | Configuration file for ZXD.COM                        |
+| `ZXD.COM`      | Z                 | Extended directory utility w/ date/time stamp support |
+| `Z3LOC.COM`    | Z3                | Display info of the ZCPR3 CCP, BDOS, and BIOS         |  
+| `Z3TCAP.LBR`   | Z3                | Database of terminal descriptions                     |  
+
+Applicability:
+
+* CPM22 - Included in all CP/M 2.2 OS's (CPM2.2, ZSDOS, NZ-COM, QPM)
+* CPM3 - Included in all CP/M 3 OS's (CPM3, Z3PLUS, ZPM3)
+* Z - Included in All Z OS's (ZSDOS, NZ-COM, Z3PLUS, ZPM3)
+* Z3 - Included in ZCPR3 OS's (NZ-COM, Z3PLUS, ZPM3)
+
+## NZ-COM Z3PLUS OS Files
+
+The following files are specific files share across two operating systems.
+
+* NZ-COM - The Automatic Z-System - Alpha Systems
+* Z3PLUS - The Z-System for CP/M-Plus - Plu*Perfect Systems
+
+These 2 operating systems are identical in all respects, except for the underlying
+operating system that they run on. 
+
+The following files are found in
+
+* /Source/Images/Common/NZ3PLUS
+
+The following file are in User Area 15, and where noted 14 for config files.
+
+| **File**       | **Description**                                          |
+|----------------|----------------------------------------------------------|
+| `ARUNZ.COM`    | Alias-RUN-forZ-System command alias exec (v0.9u Type4)   |
+| `CLEDINST.COM` | Command line editing and history shell installer         |
+| `CLEDSAVE.COM` | Save RCP-resident command line editor history            |
+| `CONFIG.LBR`   | Various configuration files for use with ZCNFG. (U14)    |
+| `CPSET.COM`    | Displays/defines CRT/PRT characteristics                 |
+| `FCP.LBR`      | Library of alternative FCP modules                       |
+| `FF.COM`       | File finder utility                                      |
+| `IF.COM`       | Extended flow control tester for FCP (v1.5 Type4)        |
+| `JETLDR.COM`   | Z-System General-purpose module loader                   |
+| `LBRHELP.COM`  | Help file viewer for use with help file libraries (.LBR) |
+| `LDIR.COM`     | Directory lister for libraries (.LBR)                    |
+| `LPUT.COM`     | Puts file(s) into a library (.LBR)                       |
+| `LSH.COM`      | Command history shell and command line editor            |
+| `LSH-HELP.COM` | Display LSH help when LSH is running                     |
+| `LSHINST.COM`  | LSH configuration editor                                 |
+| `LX.COM`       | Execute programs directly from a library (.LBR)          |
+| `NAME.COM`     | Quickly add or remove a name for a single directory      |
+| `PATH.COM`     | Set/display command search path                          |
+| `PWD.COM`      | Displays DU and Directory Names with paging              |
+| `TY3ERA.COM`   | Type-3 program to erase a file                           |
+| `TY3REN.COM`   | Type-3 program to rename a file                          |
+| `TY4ERA.COM`   | Type-4 program to erase a file                           |
+| `TY4REN.COM`   | Type-4 program to rename a file                          |
+| `TY4SAVE.COM`  | Type-4 program to save memory to a file                  |
+| `TY4SP.COM`    | Type-4 program to display disk space                     |
+| `VIEW.COM`     | Quad directional file viewer                             |
+| `XTCAP.COM`    | Interactive Extended TCAP Installer                      |
+| `ZERR.COM`     | Z34 Error Handler                                        |
+| `ZF-DIM.COM`   | ZFILER shell for dim-video terminals                     |
+| `ZF-REV.COM`   | ZFILER shell for reverse-video terminals                 |
+| `ZFILER.CMD`   | Macro script file for ZFILER                             |
+| `ZHELP.COM`    | (HELPC14) is an improved version of the help utility     |
+| `ZLT.COM`      | File lister with support for compressed files            |
+| `ZSHOW.COM`    | Display Z-System configuration information               |
+
+The following documentation files are in User Area 10
+
+| **File**       | **Description**                                         |
+|----------------|---------------------------------------------------------|
+| `DOCFILES.LBR` | Documentation and help files collected into an LBR file |
+| `HLPFILES.LBR` | Various app help files for use with LBRHELP             |
+| `LSH.WZ`       | User manual for LSH                                     |
+| `TCJ.INF`      | Subscription information for The Computer Journal       |
+| `TCJ*.WZ`      | Selected articles from The Computer Journal             |
+| `ZFILEB38.LZT` | Brief listing of Z-System support programs              |
+| `ZHELPERS.LZT` | List of volunteers who will help installing Z-System    |
+| `ZNODES66.LZT` | List of Z-Node remote access systems                    |
+| `ZSYSTEM.IZF`  | Information on Z-System and related products            |
+
+## Sample Audio Files
+
+User area 3 contains sample audio files that can be played using
+the TUNE or VGMPLAY applications. 
+
+**NOTE** These files are NOT present on floppy disk images
+
+The following files are found in
+
+*  /Binary/Apps/Tunes
+
+| **File**          | **File**          | **File**         | **File**       |
+|-------------------|-------------------|------------------|----------------|
+| `ATTACK.PT3`      | `DEMO4.MYM`       | `NAMIDA.PT3`     | `VICTORY.PT3`  |
+| `BACKUP.PT3`      | `ENDING.VGM`      | `RECOLL.PT3`     | `WICKED.PT3`   |
+| `BADMICE.PT3`     | `HOWRU.PT3`       | `SANXION.PT3`    | `WONDER01.VGM` |
+| `DEMO.MYM`        | `INCHINA.VGM`     | `SHIRAKAW.VGM`   | `YEOLDE.PT3`   |
+| `DEMO1.MYM`       | `ITERATN.PT3`     | `STARTDEM.VGM`   | `YEOVIL.PT3`   |
+| `DEMO3.MYM`       | `LOOKBACK.PT3`    | `SYNCH.PT3`      |                |
+| `DEMO3MIX.MYM`    | `LOUBOUTN.PT3`    | `TOSTAR.PT3`     |                |
+
+## SIMH Simulator
+
+Files for use with the SIMH Simulator
+
+The following files are found in
+
+*  /Source/Images/Common/SIMH
+
+| **File**       | **Description**                                           |
+|----------------|-----------------------------------------------------------|
+| HDIR.COM       |                                                           |
+| R.COM          | transfer files between the simulator and host file system |
+| RSETSIMH.COM   | --                                                        |
+| TIMER.COM      | --                                                        |
+| URL.COM        | --                                                        |
+| W.COM          | transfer files between the simulator and host file system |
+
+## Testing Applications
+
+User area 2 contains a variety of hardware testing applications.
+These are generally user contributed and have no documentation.
+
+These applications are frequently not compatible with all RomWBW
+hardware.  They are included here as a convenience.  If applicable,
+your hardware documentation should refer to them and provide usage
+instructions.
+
+**NOTE** These files are NOT present on floppy disk images
+
+The following files are found in
+
+* /Binary/Apps/Test
+* /Source/Images/Common/Test
+
+| **File**            | **Description**                                         |
+|---------------------|---------------------------------------------------------|
+| `2PIOTST.COM`       | ECB-ZILOG PERIPHERALS BOARD TEST 2 PIO's                |
+| `AY-TEST.COM`       | AY-3-8910 Sound Test Program (SOUND)                    |
+| `BANKTEST.COM`      | Test RomWBW bank management API                         |
+| `DMAMON.COM`        | Verify operation of the Z80 MBC DMA board               |
+| `I2CLCD.COM`        | PCF8584 HD44780  I2C LCD UTILITY                        |
+| `I2CSCAN.COM`       | I2C BUS SCANNER                                         |
+| `INTTEST.COM`       | Test HBIOS interrupt API functions                      |
+| `KBDTEST.COM`       | test program to work with the Z80 KBDMSE board          |
+| `PIOMON.COM`        | Zilog PIO Monitor & Hardware Testing Application        |
+| `PORTSCAN.COM`      | Reads all ports and displays values read                |
+| `PPIDETST.COM`      | PPI IDE test for checkout of all 8255 IDE drives        |
+| `PS2INFO.COM`       | PS/2 Keyboard/Mouse Information Utility                 |
+| `RAMTEST.COM`       | RAM_TEST_PROGRAM                                        |
+| `RTCDS7.COM`        | PCF8584/DS1307 I2C DATE AND TIME UTILITY (I2C)          |
+| `RZ.COM`            | Receive Zmodem disassembly of CP/M 3 binaries           |
+| `SOUND.COM`         | RomWBW HBIOS Sound Device Test Tool (SOUND)             |
+| `SROM.COM`          | I2C Serial ROM Read/Write Utility (I2C)                 |
+| `SZ.COM`            | Send Zmodem is a disassembly of CP/M 3 binaries         |
+| `TESTH8P.COM`       | H8 Panel Test                                           |
+| `TSTDSKNG.COM`      | DSKY NEXT GENERATION TEST APPLICATION                   |
+| `VDCONLY.COM`       | COLOR VDU TEST                                          |
+| `VDCTEST.COM`       | COLOR VDU TEST                                          |
+| `ZEXALL.COM`        | Z80 Instruction Set Exerciser                           |
+| `ZEXDOC.COM`        | Z80 Instruction Set Exerciser                           |
+
+And The following CPU Tests - Which are probably originally from this source. 
+[https://github.com/raxoft/z80test]
+
+| **File**       | **Description**                                               |
+|----------------|---------------------------------------------------------------|
+| `Z80CCF.COM`   | tests flags after executing CCF after each instruction.       |
+| `Z80DOC.COM`   | tests registers, but only officially documented flags         |
+| `Z80DOCF.COM`  |                                                               |
+| `Z80FLAGS.COM` | tests flags, ignores registers.                               |
+| `Z80FULL.COM`  | tests flags and registers                                     |
+| `Z80MPTR.COM`  | tests flags after executing BIT N,(HL) after each instruction |
+
+# Application Standalone Disks
+
+## Aztec C Compiler
+
+| Floppy Disk Image: **fd_aztecc.img**
+| Hard Disk Image: **hd_aztecc.img**
+
+Aztec C is a discontinued programming language for a variety of platforms
+including MS-DOS, Apple II DOS 3.3 and PRoDOS, Commodore 64, Macintosh and
+Amiga. This disk contains the CP/M version of that compiler. A cross-compiler
+for MS-DOS or Windows XP is also available.
+
+For full documentation, see [https://www.aztecmuseum.ca] 
+The user manual is available in the Doc/Language directory
+Aztec_C_1.06_User_Manual_Mar84.pdf
+
+The following files are found in
+
+*  /Source/Images/d_aztec
+
+| **File** | **Description** |
+|----------|-----------------|
+| --       |       --        |
+
+NOTE : The above is incomplete
+
+## Microsoft Basic Compiler
+
+| Floppy Disk Image: **fd_bascomp.img**
+| Hard Disk Image: **hd_bascomp.img**
+
+The Microsoft BASIC Compiler is a highly efficient programming tool that
+converts BASIC programs from BASIC source code into machine code. This
+provides much faster BASIC program execution than has previously been
+possible. It can make programs run an average of 3 to 10 times faster than
+programs run under BASIC-80. Compiled programs can be up to 30 times
+faster than interpreted programs if maximum use of integer variables is
+made.
+
+View BASCOM.HLP included in the disk image using HELP.COM for documentation.
+
+The following files are found in
+
+*  /Source/Images/d_bascomp
+
+| **File** | **Description** |
+|----------|-----------------|
+| --       |       --        |
+
+NOTE : The above is incomplete
+
+## Cowgol Compiler
+
+| Floppy Disk Image: **fd_cowgol.img**
+| Hard Disk Image: **hd_cowgol.img**
+
+The Cowgol 2.0 compiler and related tools.
+These files were provided by Ladislau Szilagyi and were sourced
+from his GitHub repository at [https://github.com/Laci1953/Cowgol_on_CP_M].
+
+The primary distribution site for Cowgol 2.0 is at
+[https://github.com/davidgiven/cowgol].
+The user manual is available in the Doc/Language directory
+Cowgol Language.pdf
+
+The following files are found in
+
+*  /Source/Images/d_cowgol
+
+| **File**     | **Description**                            |
+|--------------|--------------------------------------------|
+| ADVENT.COW   | Adventure game program source              |
+| ADVENT.SUB   | Submit file to build ADVENT                |
+| ADVENT?.TXT  | Adventure game program resource            |
+| ADVMAIN.COW  | Adventure game program source              |
+| RAND.AS      | Assembler Library File                     |
+| COWBE.COM    |                                            |
+| COWFE.COM    | RomWBW specific (Memory Manage) version    |
+| COWLINK.COM  |                                            |
+| DYNMSORT.COW | demonstrates a sort algorithm              |
+| DYNMSORT.SUB | Submit file to build DYNMSORT              |
+| HEXDUMP.COW  | a simple hex dump utility, purely a Cowgol |
+| HEXDUMP.SUB  | Submit file to build HEXDUMP               |
+| HMERGES.C    | C Library File                             |
+| XRND.AS      | Assembler Library File                     |
+| -            | -                                          |
+
+NOTE : The above is incomplete
+
+## Microsoft Fortran 80 (Fortran)
+
+| Floppy Disk Image: **fd_fortran.img**
+| Hard Disk Image: **hd_fortran.img**
+
+This is Microsoft's implementation of the FORTRAN scientific-oriented high level
+programming language. It was one of their early core languages developed for the
+8-bit computers and later brought to the 8086 and IBM PC. In 1993 Microsoft
+rebranded the product as Microsoft Fortran Powerstation. (Note: -80 refers to
+the 8080/Z80 platform, not the language specification version)
+
+The user manual is available in the Doc/Language directory,
+Microsoft_FORTRAN-80_Users_Manual_1977.pdf
+
+The following files are found in
+
+*  /Source/Images/d_fortram
+
+| **File** | **Description** |
+|----------|-----------------|
+| --       |       --        |
+
+NOTE : The above is incomplete
+
+## Games
+
+| Floppy Disk Image: **fd_games.img**
+| Hard Disk Image: **hd_games.img**
+
+This disk contains several games for CP/M including the Infocom games
+Zork 1 through 3, Planetfall and Hitchhiker's Guide to the Galaxy.
+
+Nemesis and Dungeon Master is a Rogue-like game released in 1981. It is playable
+on a text terminal using ASCII graphics to represent the dungeon. Only a few
+thousand copies of the game were ever made, making it very rare. See
+[http://crpgaddict.blogspot.com/2019/03/game-322-nemesis-1981.html]
+
+Colossal Cave Adventure is a CP/M port of the 1976 classic game originally
+written by Will Crowther for the PDP-10 mainframe. See
+[https://en.wikipedia.org/wiki/Colossal_Cave_Adventure] and
+[https://if50.substack.com/p/1976-adventure]
+
+The following files are found in
+
+*  /Source/Images/d_games
+
+| **File** | **Description** |
+|----------|-----------------|
+| --       |       --        |
+
+NOTE : The above is incomplete
+
+## HI-TECH C Compiler
+
+| Floppy Disk Image: **fd_hitechc.img**
+| Hard Disk Image: **hd_hitechc.img**
+
+The HI-TECH C Compiler  is  a  set  of  software  which
+translates  programs written in the C language to executable
+machine code programs. Versions are available which  compile
+programs  for  operation under the host operating system, or
+which produce programs for  execution  in  embedded  systems
+without an operating system.
+
+This is the Mar 21, 2023 update 17 released by Tony Nicholson who currently
+maintains HI-TECH C at [https://github.com/agn453/HI-TECH-Z80-C]
+
+The manual is available in the Doc/Language directory,
+HI-TECH Z80 C Compiler Manual.txt
+
+A good blog post about the HI-TECH C Compiler is available at
+[https://techtinkering.com/2008/10/22/installing-the-hi-tech-z80-c-compiler-for-cpm]
+
+The following files are found in
+
+*  /Source/Images/d_hitechc
+
+| **File** | **Description** |
+|----------|-----------------|
+| --       |       --        |
+
+NOTE : The above is incomplete
+
+## MSX ROMS
+
+| Hard Disk Image: **hd_msxroms1.img**
+| Hard Disk Image: **hd_msxroms2.img**
+
+The collection of MSX ROMs (2 disks) as provided by Les Bird.  
+These ROMs are "run" by using the
+appropriate variant of Les' MSX8 ROM loader.  You can download the
+loader binaries from [https://github.com/lesbird/MSX8].  You will need
+appropriate hardware to run the loader.
+
+Please review the file ROMLIST.TXT for information on the current
+operational status of the ROM and it's long file name/description.
+
+This disk (RomWBW slice) is not automatically included with the
+RomWBW "combo" disk images.  You can simply add it to a combo
+image by appending it to the end.  After booting your system,
+you can use the ASSIGN command to map the slice to a drive letter.
+Refer to the RomWBW User Guide for more information on this
+process.
+
+The ROM files are found in
+
+*  /Source/Images/d_msxroms1
+*  /Source/Images/d_msxroms2
+
+## Turbo Pascal Compiler
+
+| Floppy Disk Image: **fd_tpascal.img**
+| Hard Disk Image: **hd_tpascal.img**
+
+The Borland Turbo Pascal Compiler.
+Pascal is a general-purpose, high level programming language originally
+designed by Professor Niklaus Wirth of the Technical University of Zurich,
+Switzerland and named in honor of Blise Pascal, the famous French philosopher
+and mathematician.
+
+Turbo Pascal closely follows the definition of Standard Pascal as defined in
+the Pascal User Manual and Report with a few minor differences.
+
+The manual can be found in the Docs/Language directory,
+Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf
+
+A good overview of using Turbo Pascal in CP/M is available at
+[https://techtinkering.com/2013/03/05/turbo-pascal-a-great-choice-for-programming-under-cpm]
+
+The following files are found in
+
+*  /Source/Images/d_tpascal
+
+| **File**     | **Description**                |
+|--------------|--------------------------------|
+| ART.TXT      | Part of the Example program    |
+| SA.PAS       | Example Program                |
+| TINST.COM    | Installation and Configuration |
+| TINST.DTA    | Part of TINST                  |
+| TINST.MSG    | Part of TINST                  |
+| TURBO.COM    | The main Turbo Pascal program  |
+| TURBO.MSG    | Part of TURBO tascal           |
+| TURBO.OVR    | Part of TURBO tascal           |
+| TURBOMSG.OVR | Part of TURBO tascal           |
+
+## WordStar 4
 
 | Floppy Disk Image: **fd_ws4.img**
 | Hard Disk Image: **hd_ws4.img**
 | Combo Disk Image: **Slice 5**
 
-| **User 0**     | **Source** | **Description** |
-| -------------- | ---------- | ------------------------------------------------------------ |
-| `ANAGRAM.COM`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `CHAPTER1.DOC` | WS4        | MicroPro WordStar 4 Distribution File |
-| `CHAPTER2.DOC` | WS4        | MicroPro WordStar 4 Distribution File |
-| `CHAPTER3.DOC` | WS4        | MicroPro WordStar 4 Distribution File |
-| `DIARY.DOC`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `DICTSORT.COM` | WS4        | MicroPro WordStar 4 Distribution File |
-| `FIND.COM`     | WS4        | MicroPro WordStar 4 Distribution File |
-| `HOMONYMS.TXT` | WS4        | MicroPro WordStar 4 Distribution File |
-| `HYEXCEPT.TXT` | WS4        | MicroPro WordStar 4 Distribution File |
-| `HYPHEN.COM`   | WS4        | MicroPro WordStar 4 Distribution File |
-| `LOOKUP.COM`   | WS4        | MicroPro WordStar 4 Distribution File |
-| `MAINDICT.CMP` | WS4        | MicroPro WordStar 4 Distribution File |
-| `MARKFIX.COM`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `MOVEPRN.COM`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `PATCH.LST`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `PRINT.TST`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `READ.ME`      | WS4        | MicroPro WordStar 4 Distribution File |
-| `README.`      | WS4        | MicroPro WordStar 4 Distribution File |
-| `REVIEW.COM`   | WS4        | MicroPro WordStar 4 Distribution File |
-| `RULER.DOC`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `SAMPLE1.DOC`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `SAMPLE2.DOC`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `SAMPLE3.DOC`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `SPELL.COM`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `TABLE.DOC`    | WS4        | MicroPro WordStar 4 Distribution File |
-| `TEXT.DOC`     | WS4        | MicroPro WordStar 4 Distribution File |
-| `TW.COM`       | WS4        | MicroPro WordStar 4 Distribution File |
-| `WC.COM`       | WS4        | MicroPro WordStar 4 Distribution File |
-| `WINSTALL.COM` | WS4        | MicroPro WordStar 4 Distribution File |
-| `WORDFREQ.COM` | WS4        | MicroPro WordStar 4 Distribution File |
-| `WS.COM`       | WS4        | MicroPro WordStar 4 Distribution File |
-| `WS.OVR`       | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSCHANGE.COM` | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSCHANGE.OVR` | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSCHHELP.OVR` | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSHELP.OVR`   | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSINDEX.XCL`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSMSGS.OVR`   | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSPRINT.OVR`  | WS4        | MicroPro WordStar 4 Distribution File |
-| `WSSHORT.OVR`  | WS4        | MicroPro WordStar 4 Distribution File |
+The following files are found in
+
+*  /Source/Images/d_ws4
+
+| **File**       | **Description** |
+|----------------|-----------------|
+| `ANAGRAM.COM`  |                 |
+| `CHAPTER1.DOC` |                 |
+| `CHAPTER2.DOC` |                 |
+| `CHAPTER3.DOC` |                 |
+| `DIARY.DOC`    |                 |
+| `DICTSORT.COM` |                 |
+| `FIND.COM`     |                 |
+| `HOMONYMS.TXT` |                 |
+| `HYEXCEPT.TXT` |                 |
+| `HYPHEN.COM`   |                 |
+| `LOOKUP.COM`   |                 |
+| `MAINDICT.CMP` |                 |
+| `MARKFIX.COM`  |                 |
+| `MOVEPRN.COM`  |                 |
+| `PATCH.LST`    |                 |
+| `PRINT.TST`    |                 |
+| `READ.ME`      |                 |
+| `README.`      |                 |
+| `REVIEW.COM`   |                 |
+| `RULER.DOC`    |                 |
+| `SAMPLE1.DOC`  |                 |
+| `SAMPLE2.DOC`  |                 |
+| `SAMPLE3.DOC`  |                 |
+| `SPELL.COM`    |                 |
+| `TABLE.DOC`    |                 |
+| `TEXT.DOC`     |                 |
+| `TW.COM`       |                 |
+| `WC.COM`       |                 |
+| `WINSTALL.COM` |                 |
+| `WORDFREQ.COM` |                 |
+| `WS.COM`       |                 |
+| `WS.OVR`       |                 |
+| `WSCHANGE.COM` |                 |
+| `WSCHANGE.OVR` |                 |
+| `WSCHHELP.OVR` |                 |
+| `WSHELP.OVR`   |                 |
+| `WSINDEX.XCL`  |                 |
+| `WSMSGS.OVR`   |                 |
+| `WSPRINT.OVR`  |                 |
+| `WSSHORT.OVR`  |                 |
+
+Also contained on this image in User Area 1 are.
+
+| **File**       | **Description**       |
+|----------------|-----------------------|
+| `SAMPKEY.DOC`  | ZDE Distribution File |
+| `SAMPKEY.ZDK`  | ZDE Distribution File |
+| `SAMPKEY.ZDT`  | ZDE Distribution File |
+| `ZDE10.DOC`    | ZDE Distribution File |
+| `ZDE10.FOR`    | ZDE Distribution File |
+| `ZDE10.NEW`    | ZDE Distribution File |
+| `ZDE10.QRF`    | ZDE Distribution File |
+| `ZDE10.TOC`    | ZDE Distribution File |
+| `ZDE13.FOR`    | ZDE Distribution File |
+| `ZDE13.NEW`    | ZDE Distribution File |
+| `ZDE16.COM`    | ZDE Distribution File |
+| `ZDE16.DIR`    | ZDE Distribution File |
+| `ZDE16.FIX`    | ZDE Distribution File |
+| `ZDE16.FOR`    | ZDE Distribution File |
+| `ZDE16.NEW`    | ZDE Distribution File |
+| `ZDE16A.COM`   | ZDE Distribution File |
+| `ZDE16A.PAT`   | ZDE Distribution File |
+| `ZDENST16.COM` | ZDE Distribution File |
+| `ZDEPROP.DOC`  | ZDE Distribution File |
+| `ZDEPROP.Z80`  | ZDE Distribution File |
+| `ZDKCOM13.COM` | ZDE Distribution File |
+| `ZDKCOM13.DOC` | ZDE Distribution File |
+
+## Z80ASM Macro Assembler
+
+| Floppy Disk Image: **fd_z80asm.img**
+| Hard Disk Image: **hd_z80asm.img**
+
+Z80ASM is a relocating macro assembler for CP/M. It takes assembly language
+source statements from a disk file, converts them into their binary equivalent,
+and stores the output in either a core-image, Intel hex format, or relocatable
+object file. The mnemonics recognized are those of Zilog/Mostek. The optional
+listing output may be sent to a disk file, the console and/or the printer, in
+any combination. Output files may also be generated containing cross-reference
+information on each symbol used.
+
+The manual is available in the Doc/Language directory,
+z80asm (SLR Systems).pdf
+
+A run through of using the assembler is available at
+[https://8bitlabs.ca/Posts/2023/05/20/learning-z80-asm]
+
+The following files are found in
+
+*  /Source/Images/d_z80asm
+
+| **File**   | **Description**                     |
+|------------|-------------------------------------|
+| DUMP.*     | Sample Program                      |
+| TEST.*     | Sample Program                      |
+| Z80ASM.COM | Relocating macro assembler for CP/M |
+| Z80ASM.DOC | Documentation for Z80.COM           |
diff --git a/Source/Doc/Graphics/BankSwitchedMemory.pdf b/Source/Doc/Graphics/BankSwitchedMemory.pdf
index 42db138c..ba027b47 100644
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diff --git a/Source/Doc/Graphics/BankSwitchedMemory.png b/Source/Doc/Graphics/BankSwitchedMemory.png
index f617cb0d..fd74851b 100644
Binary files a/Source/Doc/Graphics/BankSwitchedMemory.png and b/Source/Doc/Graphics/BankSwitchedMemory.png differ
diff --git a/Source/Doc/Graphics/BankSwitchedMemory.svg b/Source/Doc/Graphics/BankSwitchedMemory.svg
new file mode 100644
index 00000000..ef18a94e
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+			</g>
+		</g>
+		<g id="group9-8" transform="translate(216.75,-282.72)">
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+			</g>
+		</g>
+		<g id="group5-15" transform="translate(216.75,-340.32)">
+			<title>Data block</title>
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+				<path d="M0 412.82 L11.41 401.41 L11.41 379.81 L0 391.22 L0 412.82 Z" class="st1"/>
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+		</g>
+		<g id="group21-42" transform="translate(297.405,-297.12)">
+			<title>3D stack middle.21</title>
+			<g id="shape22-43" transform="translate(77.0909,0)">
+				<title>Sheet.22</title>
+				<path d="M0 412.82 L7.2 405.62 L7.2 384.02 L0 391.22 L0 412.82 Z" class="st1"/>
+			</g>
+			<g id="shape23-45">
+				<title>Sheet.23</title>
+				<rect x="0" y="391.22" width="77.0909" height="21.6" class="st2"/>
+			</g>
+		</g>
+		<g id="group24-47" transform="translate(297.405,-318.72)">
+			<title>3D stack middle.24</title>
+			<g id="shape25-48" transform="translate(77.0909,0)">
+				<title>Sheet.25</title>
+				<path d="M0 412.82 L7.2 405.62 L7.2 384.02 L0 391.22 L0 412.82 Z" class="st1"/>
+			</g>
+			<g id="shape26-50">
+				<title>Sheet.26</title>
+				<rect x="0" y="391.22" width="77.0909" height="21.6" class="st2"/>
+			</g>
+		</g>
+		<g id="shape27-52" transform="translate(220.314,-340.32)">
+			<title>Sheet.27</title>
+			<desc>HBIOS Proxy (RST 08)</desc>
+			<rect x="0" y="391.22" width="154.182" height="21.6" class="st8"/>
+			<text x="34.06" y="405.02" class="st9">HBIOS Proxy (RST 08)</text>		</g>
+		<g id="shape28-55" transform="translate(220.314,-109.92)">
+			<title>Sheet.28</title>
+			<desc>Application Area (TPA)</desc>
+			<rect x="0" y="237.402" width="154.836" height="175.418" class="st8"/>
+			<text x="22.5" y="328.71" class="st7">Application Area (TPA)</text>		</g>
+		<g id="shape29-58" transform="translate(220.314,-282.72)">
+			<title>Sheet.29</title>
+			<desc>Operating System CP/M or ZSYS</desc>
+			<rect x="0" y="355.22" width="77.0909" height="57.6" class="st8"/>
+			<text x="2.38" y="375.02" class="st9">Operating System  <tspan x="11.08" dy="2.4em" class="st10">CP/M or ZSYS</tspan></text>		</g>
+		<g id="shape30-62" transform="translate(297.405,-318.72)">
+			<title>Sheet.30</title>
+			<desc>CBIOS</desc>
+			<rect x="0" y="391.22" width="77.0909" height="21.6" class="st8"/>
+			<text x="26.29" y="405.02" class="st9">CBIOS</text>		</g>
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+			<desc>BDOS</desc>
+			<rect x="0" y="391.22" width="77.0909" height="21.6" class="st8"/>
+			<text x="27.14" y="405.02" class="st9">BDOS</text>		</g>
+		<g id="shape32-68" transform="translate(297.405,-282.72)">
+			<title>Sheet.32</title>
+			<desc>CCP</desc>
+			<rect x="0" y="398.42" width="77.0909" height="14.4" class="st8"/>
+			<text x="30.63" y="408.62" class="st9">CCP</text>		</g>
+		<g id="group33-71" transform="translate(72.75,-109.92)">
+			<title>Data block.33</title>
+			<g id="shape34-72" transform="translate(108,0)">
+				<title>Sheet.34</title>
+				<path d="M0 412.82 L11.41 401.41 L11.41 286.21 L0 297.62 L0 412.82 Z" class="st1"/>
+			</g>
+			<g id="shape35-74" transform="translate(0,-115.2)">
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+				<path d="M0 412.82 L108 412.82 L119.41 401.41 L11.41 401.41 L0 412.82 Z" class="st1"/>
+			</g>
+			<g id="shape36-76">
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+			</g>
+		</g>
+		<g id="shape37-78" transform="translate(22.35,-225.12)">
+			<title>Sheet.37</title>
+			<path d="M0 412.82 L360 412.82" class="st11"/>
+		</g>
+		<g id="shape38-81" transform="translate(72.75,-109.92)">
+			<title>Sheet.38</title>
+			<desc>HBIOS (Hardware Drivers)</desc>
+			<rect x="0" y="297.62" width="108" height="115.2" class="st8"/>
+			<text x="38.76" y="351.62" class="st7">HBIOS <tspan x="7.61" dy="1.2em" class="st10">(Hardware Drivers)</tspan></text>		</g>
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+			<path d="M0 412.82 L338.4 412.82" class="st11"/>
+		</g>
+		<g id="shape40-88" transform="translate(22.35,-361.92)">
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+			<path d="M0 412.82 L360 412.82" class="st11"/>
+		</g>
+		<g id="shape43-91" transform="translate(-397.67,302.9) rotate(-90)">
+			<title>Sheet.43</title>
+			<desc>Z80 CPU Address Space</desc>
+			<rect x="0" y="398.42" width="252" height="14.4" class="st12"/>
+			<text x="69.04" y="409.22" class="st7">Z80 CPU Address Space</text>		</g>
+		<g id="shape41-94" transform="translate(-383.27,302.9) rotate(-90)">
+			<title>Sheet.41</title>
+			<desc>Banked Lower 32K</desc>
+			<rect x="0" y="398.42" width="115.2" height="14.4" class="st12"/>
+			<text x="12.48" y="409.22" class="st7">Banked Lower 32K</text>		</g>
+		<g id="shape42-97" transform="translate(-383.27,187.7) rotate(-90)">
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+			<desc>Fixed Upper 32K</desc>
+			<rect x="0" y="398.42" width="136.8" height="14.4" class="st12"/>
+			<text x="28.39" y="409.22" class="st7">Fixed Upper 32K</text>		</g>
+		<g id="shape1-100" transform="translate(65.55,463.72) rotate(180)">
+			<title>Sheet.1</title>
+			<desc>$10000</desc>
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+		<g id="shape4-105" transform="translate(65.55,715.72) rotate(180)">
+			<title>Sheet.4</title>
+			<desc>$0000</desc>
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+		<g id="shape45-113" transform="translate(0.750002,-52.32)">
+			<title>Sheet.45</title>
+			<desc>Bank 0</desc>
+			<rect x="0" y="398.42" width="36" height="14.4" class="st12"/>
+			<text x="5.69" y="408.32" class="st5">Bank 0</text>		</g>
+		<g id="shape47-116" transform="translate(252.75,-52.32)">
+			<title>Sheet.47</title>
+			<desc>App/OS Banks</desc>
+			<rect x="0" y="398.42" width="108" height="14.4" class="st12"/>
+			<text x="28.09" y="408.32" class="st5">App/OS Banks</text>		</g>
+		<g id="shape48-119" transform="translate(360.75,-52.32)">
+			<title>Sheet.48</title>
+			<desc>Bank N-1</desc>
+			<rect x="0" y="398.42" width="36" height="14.4" class="st12"/>
+			<text x="1.41" y="408.32" class="st5">Bank N-1</text>		</g>
+		<g id="shape49-122" transform="translate(396.75,-52.32)">
+			<title>Sheet.49</title>
+			<desc>Bank N</desc>
+			<rect x="0" y="398.42" width="36" height="14.4" class="st12"/>
+			<text x="5.06" y="408.32" class="st5">Bank N</text>		</g>
+		<g id="shape50-125" transform="translate(36.75,-52.32)">
+			<title>Sheet.50</title>
+			<desc>• • •</desc>
+			<rect x="0" y="398.42" width="216" height="14.4" class="st12"/>
+			<text x="91.49" y="408.62" class="st9">•    •    •</text>		</g>
+		<g id="shape51-128" transform="translate(375.15,715.72) rotate(180)">
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+			<path d="M0 412.82 A8.14985 8.14985 0 0 1 7.2 405.62 L36 405.62 A8.14985 8.14985 -180 0 0 43.2 398.42 A8.14985 8.14985
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+		<g id="shape55-131" transform="translate(396.75,-66.72)">
+			<title>Sheet.55</title>
+			<path d="M0 187.31 L9 187.31 A9 9 0 0 1 18 196.31 L18 404.78" class="st14"/>
+		</g>
+		<g id="shape56-137" transform="translate(0.750002,-37.92)">
+			<title>Sheet.56</title>
+			<desc>Physical RAM (32K per bank)</desc>
+			<rect x="0" y="398.42" width="432" height="14.4" class="st12"/>
+			<text x="157.88" y="408.62" class="st9">Physical RAM (32K per bank)</text>		</g>
+		<g id="shape57-140" transform="translate(180.75,715.72) rotate(180)">
+			<title>Bracket.57</title>
+			<desc>`</desc>
+			<path d="M0 412.82 A8.14984 8.14984 0 0 1 7.2 405.62 L46.8 405.62 A8.14984 8.14984 -180 0 0 54 398.42 A8.14984 8.14984
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+			<text x="393.09" y="-51.6" transform="rotate(90)" class="st16">`</text>		</g>
+		<g id="shape58-145" transform="translate(449.57,360.5) rotate(90)">
+			<title>Sheet.58</title>
+			<path d="M0 412.82 L34.16 412.82" class="st17"/>
+		</g>
+		<g id="group60-148" transform="translate(36.75,-0.12)">
+			<title>3D stack top</title>
+			<desc>RAM Disk</desc>
+			<g id="shape61-149" transform="translate(208.8,0)">
+				<title>Sheet.61</title>
+				<path d="M0 412.82 L7.09 405.73 L7.09 387.73 L0 394.82 L0 412.82 Z" class="st1"/>
+			</g>
+			<g id="shape62-151" transform="translate(0,-18)">
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+				<path d="M0 412.82 L208.8 412.82 L215.89 405.73 L7.09 405.73 L0 412.82 Z" class="st1"/>
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+			<g id="shape63-153">
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+				<rect x="0" y="394.82" width="208.8" height="18" class="st2"/>
+			</g>
+			<g id="shape60-155">
+				<text x="88.83" y="406.22" class="st16">RAM Disk</text>			</g>
+		</g>
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+			<path d="M0 272.06 L0 272.42 L0 274.1 A7.19998 7.19998 -180 0 0 7.2 281.3 L28.8 281.3" class="st13"/>
+		</g>
+		<g id="shape279-70" transform="translate(284.9,-172.8)">
+			<title>Sheet.279</title>
+			<desc>CP/M System Area (128 KB)</desc>
+			<rect x="0" y="266.9" width="111.6" height="14.4" class="st7"/>
+			<text x="1" y="276.5" class="st4">CP/M System Area (128 KB)</text>		</g>
+		<g id="shape280-73" transform="translate(353.8,65.2999) rotate(90)">
+			<title>Sheet.280</title>
+			<path d="M0 112.82 L0 258.8 A22.5 22.5 -180 0 0 22.5 281.3 L44.88 281.3" class="st11"/>
+		</g>
+		<g id="shape281-78" transform="translate(368.2,65.2999) rotate(90)">
+			<title>Sheet.281</title>
+			<path d="M0 127.22 L0 258.8 A22.5 22.5 -180 0 0 22.5 281.3 L44.88 281.3" class="st11"/>
+		</g>
+		<g id="shape282-83" transform="translate(382.6,65.2999) rotate(90)">
+			<title>Sheet.282</title>
+			<path d="M0 141.62 L0 258.8 A22.5 22.5 -180 0 0 22.5 281.3 L44.88 281.3" class="st11"/>
+		</g>
+		<g id="shape283-88" transform="translate(469,65.2999) rotate(90)">
+			<title>Sheet.283</title>
+			<path d="M0 228.02 L0 258.8 A22.5 22.5 -180 0 0 22.5 281.3 L44.88 281.3" class="st11"/>
+		</g>
+		<g id="shape284-93" transform="translate(158.9,-68.3999)">
+			<title>Sheet.284</title>
+			<rect x="0" y="277.7" width="14.4" height="3.6" class="st3"/>
+		</g>
+		<g id="shape285-95" transform="translate(158.9,-64.7999)">
+			<title>Sheet.285</title>
+			<rect x="0" y="277.7" width="14.4" height="3.6" class="st3"/>
+		</g>
+		<g id="shape286-97" transform="translate(158.9,-61.1999)">
+			<title>Sheet.286</title>
+			<rect x="0" y="277.7" width="14.4" height="3.6" class="st3"/>
+		</g>
+		<g id="shape287-99" transform="translate(158.9,-57.5999)">
+			<title>Sheet.287</title>
+			<rect x="0" y="277.7" width="14.4" height="3.6" class="st3"/>
+		</g>
+		<g id="shape288-101" transform="translate(166.1,-57.6)">
+			<title>Stack pointer.179</title>
+			<path d="M33.6 302.9 L5.4 302.9 A5.39999 5.39999 0 0 1 0 297.5 L0 292.1 L0 286.82" class="st11"/>
+		</g>
+		<g id="shape289-106" transform="translate(50.9,-136.8)">
+			<title>Sheet.289</title>
+			<desc>RomWBW Data (8,320 KB * N)</desc>
+			<rect x="0" y="266.9" width="144" height="14.4" class="st1"/>
+			<text x="22.71" y="276.5" class="st4">RomWBW Data (8,320 KB * N)</text>		</g>
+		<g id="shape293-109" transform="translate(252.5,-46.8)">
+			<title>Dynamic connector.207</title>
+			<path d="M0 281.3 L17.1 281.3 A4.5 4.5 -180 0 0 21.6 276.8 L21.6 231.8 A4.5 4.5 -180 0 0 17.1 227.3 L-17.1 227.3 A4.5
+						 4.5 0 0 1 -21.6 222.8 L-21.6 211.24" class="st14"/>
+		</g>
+		<g id="shape294-115" transform="translate(101.3,-57.6)">
+			<title>Sheet.294</title>
+			<desc>MBR</desc>
+			<rect x="0" y="266.9" width="72" height="14.4" class="st5"/>
+			<text x="28.23" y="276.5" class="st4">MBR</text>		</g>
+		<g id="shape295-118" transform="translate(209.156,-21.5999)">
+			<title>Sheet.295</title>
+			<rect x="0" y="252.5" width="43.344" height="28.8" class="st5"/>
+		</g>
+		<g id="shape296-120" transform="translate(245.3,-208.8)">
+			<title>Sheet.296</title>
+			<desc>Slice (8,320 KB)</desc>
+			<rect x="0" y="266.9" width="151.2" height="14.4" class="st5"/>
+			<text x="50.65" y="276.5" class="st4">Slice (8,320 KB)</text>		</g>
+		<g id="shape298-123" transform="translate(245.3,-194.4)">
+			<title>Sheet.298</title>
+			<rect x="0" y="266.9" width="14.4" height="14.4" class="st3"/>
+		</g>
+		<g id="shape299-125" transform="translate(245.3,-194.4)">
+			<title>Sheet.299</title>
+			<desc>CP/M File System (8 MB)</desc>
+			<rect x="0" y="266.9" width="151.2" height="14.4" class="st7"/>
+			<text x="35.37" y="276.5" class="st4">CP/M File System (8 MB)</text>		</g>
+		<g id="shape300-128" transform="translate(245.3,-194.4)">
+			<title>Sheet.300</title>
+			<rect x="0" y="266.9" width="151.2" height="14.4" class="st5"/>
+		</g>
+		<g id="shape301-130" transform="translate(-180,223.7) rotate(-90)">
+			<title>Bracket.301</title>
+			<path d="M-0 281.3 A2.41217 2.41217 0 0 1 2.13 279.17 L5.07 279.17 A2.41217 2.41217 -180 0 0 7.2 277.04 A2.41217 2.41217
+						 -180 0 0 9.33 279.17 L12.27 279.17 A2.41217 2.41217 0 0 1 14.4 281.3" class="st12"/>
+		</g>
+		<g id="shape302-133" transform="translate(-35.9999,72.5) rotate(-90)">
+			<title>Bracket.302</title>
+			<path d="M-0 281.3 A2.41217 2.41217 0 0 1 2.13 279.17 L5.07 279.17 A2.41217 2.41217 -180 0 0 7.2 277.04 A2.41217 2.41217
+						 -180 0 0 9.33 279.17 L12.27 279.17 A2.41217 2.41217 0 0 1 14.4 281.3" class="st12"/>
+		</g>
+	</g>
+</svg>
diff --git a/Source/Doc/Makefile b/Source/Doc/Makefile
index 11e4c600..04c8df4a 100644
--- a/Source/Doc/Makefile
+++ b/Source/Doc/Makefile
@@ -1,13 +1,19 @@
 #
-# NOTE: gpp, Pandoc, and Latex (MiKTeX or TexLive) must be installed
+# NOTE: gpp, Pandoc, LuaLatex (MiKTeX or TexLive), and Roboto Font must be installed
 # and available on commandline for this build to work!!!
-# Typically "sudo apt install gpp pandoc texlive-latex-extra texlive-luatex texlive-fonts-extra fonts-roboto"
 #
-OBJECTS = ReadMe.gfm ReadMe.txt UserGuide.pdf SystemGuide.pdf Applications.pdf ROM_Applications.pdf Catalog.pdf Errata.pdf
+# On MacOS:
+# brew install gpp pandoc texlive
+# brew install --cask font-roboto
+#
+# On Ubuntu Linux:
+# apt install gpp pandoc texlive texlive-luatex texlive-fonts-extra
+#
+OBJECTS = ReadMe.gfm ReadMe.txt UserGuide.pdf SystemGuide.pdf Applications.pdf Catalog.pdf Errata.pdf
 # DEST = ../../Doc
 TOOLS = ../../Tools
 OTHERS = *.tmp
-
+
 include $(TOOLS)/Makefile.inc
 
 all :: deploy
@@ -36,6 +42,5 @@ deploy :
 	cp UserGuide.pdf         "../../Doc/RomWBW User Guide.pdf"
 	cp SystemGuide.pdf       "../../Doc/RomWBW System Guide.pdf"
 	cp Applications.pdf      "../../Doc/RomWBW Applications.pdf"
-	cp ROM_Applications.pdf  "../../Doc/RomWBW ROM Applications.pdf"
 	cp Catalog.pdf           "../../Doc/RomWBW Disk Catalog.pdf"
-	cp Errata.pdf             "../../Doc/RomWBW Errata.pdf"
+	cp Errata.pdf            "../../Doc/RomWBW Errata.pdf"
diff --git a/Source/Doc/ROM_Applications.md b/Source/Doc/ROM_Applications.md
deleted file mode 100644
index cfb8ae5f..00000000
--- a/Source/Doc/ROM_Applications.md
+++ /dev/null
@@ -1,635 +0,0 @@
-$define{doc_title}{ROM Applications}$
-$define{doc_author}{Phillip Summers}$
-$define{doc_authmail}{}$
-$include{"Book.h"}$
-
-# Summary
-
-RomWBW includes a small selection of built in utilities and
-programming languages.
-
-`\clearpage`{=latex}
-
-# RomWBW Monitor
-
-The Monitor program is a low level utility that can be used 
-for testing and programming. It allows programs to be entered,
-memory to be examined, and input/output devices to be read or
-written to.
-
-It's key advantage is that is available at boot up. 
-
-Its key disadvantages are that code cannot be entered in assembly 
-language and there is no ability to save to memory devices.
-
-The available memory area for programming is `0200-EDFFh`.
-The following areas are reserved:
-
-Memory Area | Function
-------------|-----------------------------------
-`0000-00FFh`| Jump and restart (RST) vectors
-`0100-01FFh`| HBIOS configuration block
-`EE00-FDFFh`| MONITOR
-`FE00-FFFFh`| HBIOS proxy
-
-Commands can be entered at the command prompt `>` 
-Automatic case conversion takes place on command entry and all 
-arguments are expected to be in hex format.
-
-The current memory bank in low memory is displayed before the prompt i.e.:
-
-`8E>`
-
-The Monitor allows access to all memory locations but ROM and
-Flash memory cannot be written to. Memory outside the normal
-address range can be accessed using the B command. The first
-256 bytes `0000-01FF` is critical for the HBIOS operation.
-Changing banks may make this information inaccessible.
-
-Refer to the RomWBW Architecture manual for details memory banking.
-
-A quick guide to using the Monitor program follows:
-
-## ? - Displays a summary of available commands.
-
-```
-Monitor Commands (all values in hex):
-B                    - Boot system
-D xxxx [yyyy]        - Dump memory from xxxx to yyyy
-F xxxx yyyy zz       - Fill memory from xxxx to yyyy with zz
-H                    - Halt system
-I xxxx               - Input from port xxxx
-K                    - Keyboard echo
-L                    - Load Intel hex data
-M xxxx yyyy zzzz     - Move memory block xxxx-yyyy to zzzz
-O xxxx yy            - Output value yy to port xxxx
-P xxxx               - Program RAM at address xxxx
-R xxxx [[yy] [zzzz]] - Run code at address xxxx
-                       Pass yy and zzzz to register A and BC
-T xxxx	             - X-modem transfer to memory location xxxx
-S xx                 - Set bank to xx
-X                    - Exit monitor
-```
-
-## Cold Boot
-
-B - Performs a cold boot of the ROMWBW system. A complete
-re-initialization of the system is performed and the system
-returns to the Boot Loader prompt.
-
-## Dump Memory
-
-D xxxx [yyyy] - Dump memory from hex location xxxx to yyyy
-on the screen as lines of 16 hexadecimal bytes with their
-ASCII equivalents (if within a set range, else a '.' is
-printed). If the end address is omitted then 256 bytes is
-displayed. 
-
-A good tool to see where code is located, check
-for version id, obtain details for chip configurations and
-execution paths.
-
-Examples: `D 100 1FF`
-
-```
-0100: 10 0B 01 5A 33 45 4E 56 01 00 00 2A 06 00 F9 11  ...Z3ENV...*..ù.
-0110: DE 38 37 ED 52 4D 44 0B 6B 62 13 36 00 ED B0 21  Þ87íRMD.kb.6.í°!
-0120: 7D 32 E5 21 80 00 4E 23 06 00 09 36 00 21 81 00  }2å!..N#...6.!..
-0130: E5 CD 6C 1F C1 C1 E5 2A C9 8C E5 CD 45 05 E5 CD  åÍl.ÁÁå*É.åÍE.åÍ
-0140: 59 1F C3 00 00 C3 AE 01 C3 51 04 C3 4C 02 C3 57  Y.Ã..î.ÃQ.ÃL.ÃW
-0150: 02 C3 64 02 C3 75 02 C3 88 02 C3 B2 03 C3 0D 04  .Ãd.Ãu.Ã..ò.Ã..
-0160: C3 19 04 C3 22 04 C3 2A 04 C3 35 04 C3 40 04 C3  Ã..Ã".Ã*.Ã5.Ã@.Ã
-0170: 48 04 C3 50 04 C3 50 04 C3 50 04 C3 8F 02 C3 93  H.ÃP.ÃP.ÃP.Ã..Ã.
-0180: 02 C3 94 02 C3 95 02 C3 85 04 C3 C7 04 C3 D1 01  .Ã..Ã..Ã..ÃÇ.ÃÑ.
-0190: C3 48 02 C3 E7 04 C3 56 03 C3 D0 01 C3 D0 01 C3  ÃH.Ãç.ÃV.ÃÐ.ÃÐ.Ã
-01A0: D0 01 C3 D0 01 C3 D0 01 C3 D0 01 01 02 01 CD 6B  Ð.ÃÐ.ÃÐ.ÃÐ....Ík
-01B0: 04 54 68 69 73 20 66 75 6E 63 74 69 6F 6E 20 6E  .This function n
-01C0: 6F 74 20 73 75 70 70 6F 72 74 65 64 2E 0D 0A 00  ot supported....
-01D0: C9 3E FF 32 3C 00 3A 5D 00 FE 20 28 14 D6 30 32  É>ÿ2<.:].þ (.Ö02
-01E0: AB 01 32 AD 01 3A 5E 00 FE 20 28 05 D6 30 32 AC  «.2­.:^.þ (.Ö02¬
-01F0: 01 C5 01 F0 F8 CF E5 26 00 0E 0A CD 39 02 7D 3C  .Å.ðøÏå&...Í9.}<
-```
-
-## Fill Memory
-
-F xxxx yyyy zz - Fill memory from hex xxxx to yyyy with
-a single value of zz over the full range. The Dump command
-can be used to confirm that the fill completed as expected. A
-good way to zero out memory areas before writing machine data
-for debug purposes.
-
-## Halt System
-
-H - Halt system. A Z80 HALT instruction is executed. The
-system remains in the halt state until the system is
-physically rebooted. Interrupts will not restart the
-system. On systems that support a HALT status LED, the
-LED will be illuminated.
-
-## Input from port
-
-I xxxx - Input data from port xxxx and display to the screen.
-This command is used to read values from hardware I/O ports
-and display the contents in hexadecimal. 
-
-## Keyboard Echo
-
-K - Echo any key-presses from the terminal. Press 'ESC' key
-to quit. This facility provides that any key stroke sent to
-the computer will be echoed back to the terminal. File down
-loads will be echoed as well while this facility is ‘on’.
-
-## Load Hex format file into memory
-
-L - Load a Intel Hex format file via the terminal program.
-The load address is defined in the hex file of the
-assembled code.
-
-The terminal emulator program should be configured to
-give a delay at the end of each line to allow the monitor
-enough time to parse the line and move the data to memory.
-
-Keep in mind that this will be a transient unless the
-system support battery backed memory. Saving to memory drive 
-is not supported.
-
-## Move memory
-
-M xxxx yyyy zzzz - Move hex memory block xxxx to yyyy to
-memory starting at hex location zzzz. Care should be taken
-to insure that there is enough memory at the destination so
-that code does not get over-written or memory wrapped around.
-
-## Output to port
-
-O xxxx yy - Output data byte xx to port xxxx. This command is
-used to send hexadecimal values to hardware I/O ports to
-verify their operation and is the companion to the I operation.
-Use clip leaded LEDs to confirm the data written.
-
-## Program memory location
-
-P xxxx - Program memory location xxxx. This routine will
-allow you to program a hexadecimal value 'into memory starting
-at location xxxx. Press 'Enter' on a blank line to
-return to the Monitor prompt.
-
-The limitation around programming memory is that it must be 
-entered in hexadecimal. An alternative is to use the L command
-to load a program that has been assembled to a hex file on the
-remote computer.
-
-An excellent online resource for looking up opcodes for entry
-can be found here: [https://clrhome.org/table](https://clrhome.org/table)
-
-## Run program
-
-R xxxx [[yy] [zzzz]] - Run program at location xxxx. If optional
-arguments yy and zzzz are entered they are loaded into the
-A and BC register respectively. The return address of the
-Monitor is saved on the stack so the program can return
-to the monitor. On return to the monitor, the contents of
-the A, HL, DE and BC registers are displayed.
-
-## Set bank
-
-S xx - Change the bank in memory to xx. Memory addresses
-0000-7FFF (i.e. bottom 32k) are affected. Because the
-interrupt vectors are stored in the bottom page of this
-range, this function is disable when interrupt mode 1 is
-being used (IM1). Interrupt mode 2 is not affected as the
-associated jump vectors are stored in high memory. 
-
-Changing the bank also impacts the restart vectors (RST),
-so executing code that call the HBIOS using the RST 08
-assembly code will not work.
-
-The monitor stack resides in high memory and is not affected
-but any code that changes the stack to low memory will be
-affected.
-
-### Bank codes and descriptions
-
-TYPE | DESCRIPTION        |BANK| DETAILS
------|--------------------|----|---------------------
-RAM  | COMMON BANK        | 9F | 1024K RAM SYSTEM
-RAM  | USER BANK          | 9E | 1024K RAM SYSTEM
-RAM  | BIOS BANK          | 9D | 1024K RAM SYSTEM
-RAM  | AUX BANK           | 9C | 1024K RAM SYSTEM
-RAM  | OS BUFFERS END     | 9B | 1024K RAM SYSTEM
-RAM  | OS BUFFERS START   | 98 | 1024K RAM SYSTEM
-RAM  | RAM DRIVE END	  | 97 | 1024K RAM SYSTEM
-RAM  | COMMON BANK        | 8F | 512K RAM SYSTEM
-RAM  | USER BANK          | 8E | 512K RAM SYSTEM
-RAM  | BIOS BANK          | 8D | 512K RAM SYSTEM
-RAM  | AUX BANK           | 8C | 512K RAM SYSTEM
-RAM  | OS BUFFERS         | 8B | 512K RAM SYSTEM
-RAM  | OS BUFFERS         | 8A | 512K RAM SYSTEM
-RAM  | OS BUFFERS         | 89 | 512K RAM SYSTEM
-RAM  | OS BUFFERS         | 88 | 512K RAM SYSTEM
-RAM  | RAM DRIVE END	  | 87 | 512K RAM SYSTEM
-RAM  | RAM DRIVE START    | 80 |
-ROM  | BOOT BANK          | 00 | COLD START & HBIOS
-ROM  | LOADER & IMAGES    | 01 | MONITOR, FORTH
-ROM  | ROM IMAGES CONTD.  | 02 | BASIC, ETC
-ROM  | FAT FILESYSTEM     | 03 | UNA ONLY, ELSE UNUSED
-ROM  | ROM DRIVE START    | 04 |
-ROM  | ROM DRIVE END      | 0F | 512K ROM SYSTEM
-ROM  | ROM DRIVE END      | 1F | 1024K ROM SYSTEM
-
-## X-modem transfer
-
-T xxxx - Receive an X-modem file transfer and load it into
-memory starting at location xxxx. 
-
-128 byte blocks and checksum mode is the only supported 
-protocol.
-
-If the monitor is assembled with the DSKY functionality,
-this feature will be exclude due to space limitations.
-
-
-## NOTES:
-
-The RTC utility on the CP/M ROM disk provides facilities
-to manipulate the Real Time Clock non-volatile Memory. 
-Use the C or Z option from the Boot Loader to load CP/M 
-and then run RTC to see the options list.
-
-# FORTH
-
-CamelForth is the version of Forth included as part of the boot
-ROM in ROMWBW. It has been converted from the Z80 CP/M version
-published here [www.camelforth.com/page.php?5](www.camelforth.com/page.php?5). The author is Brad
-Rodriguez who is a prolific Forth enthusiast, whose work can be
-found here: [www.bradrodriguez/papers/index.html](www.bradrodriguez/papers/index.html)
-
-For those are who are not familiar with Forth, I recommend the
-wikipedia article [en.wikipedia.org/wiki/Forth_(programming_language](en.wikipedia.org/wiki/Forth_(programming_language))
-and the Forth Interest Group website [www.forth.org](www.forth.org)
-
-## Important things to know
-
-Forth is case sensitive.
-
-To exit back to the boot loader type ***bye***
-
-To get a list of available words type ***WORDS***
-
-To reset Forth to its initial state type ***COLD***
-
-Most of the code you find on the internet will not run unless modified or additional Forth
-words are added to the dictionary.
-
-This implementation does not support loading or saving of programs. All programs
-need to be typed in. Additionally, screen editing and code blocks are not supported.
-
-## Structure of Forth source files
-
-File          | Description
---------------|-----------------------------
-camel80.azm   | Code Primitives
- camel80d.azm | CPU Dependencies
- camel80h.azm | High Level words
- camel80r.azm | ROMWBW additions
-glosshi.txt   | Glossary of high level words
-glosslo.txt   | Glossary of low level words
-glossr.txt    | Glossary of ROMWBW additions
-
-## ROMWBW Additions
-
-Extensions and changes to this implementation compared to the original distribution are:
-
-The source code has been converted from Z80mr assembler to Hector Peraza's zsm.
-
-An additional file camel80r.azm has been added for including additional words to 
-the dictionary at build time. However, as currently configured there is very little space
-allocated for addition words. Exceeding the allocated ROM space will generate an error
-message when building.
-
-James Bowman's double precision words have been added from his RC2014 version:
-[https://github.com/jamesbowman/camelforth-z80](https://github.com/jamesbowman/camelforth-z80)
-
-Word    | Syntax                     | Description
---------|----------------------------|---------------------------------
-D+	| d1 d2 -- d1+d2             | Add double numbers
-2>R	| d --                       | 2 to R
-2R>	| d --                       | fetch 2 from R
-M*/	| d1 n2 u3 --  d=(d1*n2)/u3  | double precision mult. div
-SVC	| hl de bc n -- hl de bc af  | Execute a ROMWBW function
-P!	| n p --                     | Write a byte to a I/O port
-P@      | p -- n                     | Read a byte from and I/O port
-
-# BASIC
-
-For those who are not familiar with BASIC, it stands for Beginners All purpose Symbolic
-Instruction Code. 
-
-ROMWBW contains two versions of ROM BASIC, a full implementation and a "tiny" BASIC.
-
-The full implementation is a version of Microsoft BASIC from the NASCOM Computer.
-
-A comprehensive instruction manual is available in the Doc\\Contrib directory.
-
-## ROMWBW specific features
-
-- Sound
-- Graphics
-- Terminal Support
-
-## ROMWBW unsupported features
-
-- This ROM-hosted implementation does not support cassette or disk
-  access for loading and saving programs.
-
-# TastyBASIC
-
-TastyBASIC offers a minimal implementation of BASIC that is only 2304 bytes in size. 
-It originates from Li-Chen Wang's Palo Alto Tiny BASIC from around 1976. It's small size suited the tiny memory capacities of the time. This implementation is by Dimitri Theulings and his
-original source can be found here [https://github.com/dimitrit/tastybasic](https://github.com/dimitrit/tastybasic)
-
-## Features / Limitations
-
-- This ROM-hosted implementation does not support disk access for
-  loading and saving programs.
-- Integer arithmetic, numbers -32767 to 32767
-- Singles letter variables A-Z
-- 1-dimensional array support
-- Strings are not supported
-
-## Direct Commands
-
-- `LIST`,`RUN`, `NEW`, `CLEAR`, `BYE`
-
-## Statements
-
-- `LET`, `IF`, `GOTO`, `GOSUB RETURN`, `REM`, `FOR TO NEXT STEP`, `INPUT`, `PRINT`, `POKE`, `END`
-
-## Functions
-
-- `PEEK`, `RND`, `ABS`, `USR`, `SIZE`
-
-## Operators
-
-- `>=`, `#`, `>`, `=`, `<=`, `<`
-
-- Operator precedence is supported.
-
-Type ***BYE*** to return to the monitor.
-
-# Play a Game
-
-## 2048
-
-2048 is a puzzle game that can be both mindless and challenging. It
-appears deceptively simple but failure can creep up on you suddenly.
-
-It requires an ANSI/VT-100 compatible colour terminal to play.
-
-2048 is like a sliding puzzle game except the puzzle tiles are 
-numbers instead of pictures. Instead of moving a single tile all 
-tiles are moved simultaneously in the same direction. Where two 
-tiles of the same number collide, they are reduced to one tile with
-the combined value. After every move a new tile is added with
-a starting value of 2. 
-
-The goal is to create a tile of 2048 before all tile locations are
-occupied. Reaching the highest points score, which is the sum of all
-the tiles is a secondary goal. The game will automatically end when 
-there are no more possible moves.
-
-Play consists of entering a direction to move. Directions can be entered
-using any of three different keyboard direction sets.
-
-```
-Direction | Keys
-----------|----------
-Up        | w ^E 8
-Down      | s ^X 2
-Left      | a ^S 4
-Right     | d ^D 6
-```
-The puzzle board is a 4x4 grid. At start, the grid will be populated
-with two 2 tiles. An example game sequence is shown below with new
-tiles to the game shown in brackets.
-
-```
-Start             Move 1 - Up       Move 2 - Left     Move 3 - Left
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-|   |   |   |(2)| |   |   |   | 4 | | 4 |   |   |   | | 4 |   |   |   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-|   |   |   |   | |   |   |   |   | |   |   |   |(4)| | 4 |   |   |   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-|   |   |   |(2)| |   |   |   |   | |   |   |   |   | |   |   |   |   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-|   |   |   |   | |   |   |(2)|   | | 2 |   |   |   | | 2 |   |(2)|   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-
-Move 4 - Left     Move 5 - Up       Move 6 - Right    Move 7 - Up
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-| 4 |   |   |   | | 8 |   |   | 4 | |   |   | 8 | 4 | |   |   | 8 | 8 |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-| 4 |   |   |(4)| | 4 |   |   |   | |   |   |   | 4 | |   |   |   | 2 |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-|   |   |   |   | |   |   |   |   | |   |   |   |   | |   |   |   |   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-| 4 |   |   |   | |(2)|   |   |   | |(2)|   |   | 2 | |(2)|   |   |   |
-+---+---+---+---+ +---+---+---+---+ +---+---+---+---+ +---+---+---+---+
-```
-This is how I lost this game:
-```
-+---+---+---+---+
-| 4 | 2 | 16| 4 |
-+---+---+---+---+
-| 32| 64| 8 | 2 |
-+---+---+---+---+
-| 4 | 8 |128| 32|
-+---+---+---+---+
-|(2)| 16| 8 | 4 |
-+---+---+---+---+
-```
-Press Q at any time to bring up the option to Quit or Restart the game.
-
-# Network Boot
-
-# Xmodem Flash Updater
-
-The ROMWBW Xmodem flash updater provides the capability to update ROMWBW from the boot loader using  an x-modem file transfer. It offers similar capabilities to Will Sowerbutts FLASH4 utility except that the flashing process occurs during the file transfer. 
-
-These are the key differences between the two methods are:
-
-Xmodem Flash Updater            | FLASH4
---------------------------------|-----------------
-Available from the boot loader   | Well proven and tested
-Xmodem transfer is integrated    | Wider range of supported chips and hardware
-Integrated checksum utilities    | Wider range of supported platforms
-Capability to copy a ROM image   | Only reprograms sectors that have changed
-More convenient one step process | Ability save and verify ROM images
-No intermediate storage required | Progress display while flashing
-.                                | Displays chip identification information
-.                                | Faster file transfer
-                                 
-The major disadvantages of the Updater is that it is new and relatively untested. There is the risk that a failed transfer will result in a partially flashed and unbootable ROM. There are some limitations on serial transfer speeds.
- 
-The updater utility was initially intended to support the Retrobrew SBC-V2-005 platform using Atmel 39SF040 flash chips but has now been extended to be more generic in operation.
-
-Supported flash chips are 
-39SF040, 29F040,  AT49F040, AT29C040, M29F040 , MX29F040,  A29010B, A29040B
-
-The Atmel 39SF040 chip is recommended as it can erase and write 4Kb sectors. Other chips require the whole chip to be erased.
-
-## Usage
-
-In most cases, completing a ROM update is a simple as:
-
-1. Booting to the boot loader prompt
-2. Selecting option X - Xmodem Flash Updater
-3. Selecting option U - Update
-4. Initiating an X-modem transfer of your ROM image on your console device
-5. Selecting option R - Reboot
-
-If your console device is not able to transfer a ROM image i.e. your console is a VDU then you will have to use the console options to identify which character-input/output device is to be used as the serial device for transfer.
-
-When your console is the serial device used for the transfer, no progress information is displayed as this would disrupt the x-modem file transfer. If you use an alternate character-input/output devices as the serial device for the transfer then progress information will be displayed on the console device.
-
-Due to different platform processor speeds,  serials speeds and flow control capabilities the default console or serial device speed may need to be reduced for a successful transfer and flash to occur. The **Set Console Interface/Baud code** option at the Boot Loader can be used to change the speed if required. Additionally, the Updater has options to set to and revert from a recommended speed. 
-
-See the ROMWBW Applications guide for additional information on performing upgrades.
-
-## Console Options
-
-Option ( C ) - Set Console Device
-
-Option ( S ) - Set Serial Device
-
-By default the updater assumes that the current console is a serial device and that the ROM file to be flashed will also be transferred across this device, so the Console and Serial device are both the same.
-
-Either device can be can be change to another character-input/output device but the updater will always expect to receive the x-modem transfer on the **Serial Device**
-
-The advantage of transferring on a different device to the console is that progress information can be displayed during the transfer.
-
-Option ( > ) - Set Recommended Baud Rate
-
-Option ( < ) - Revert to Original Baud Rate
-
-## Programming options
-
-Option ( U ) - Begin Update
-
-The will begin the update process. The updater will expect to start receiving
-an x-modem file on the serial device unit.
-
-X-modem sends the file in packets of 128 bytes. The updater will cache 32
-packets which is 1 flash sector and then write that sector to the
-flash device.
-
-If using separate console, bank and sector progress information will shown
-
-```
-BANK 00 s00 s01 s02 s03 s04 s05 s06 s06 s07
-BANK 01 s00 s01 s02 s03 s04 s05 s06 s06 s07
-BANK 02 s00 s01 s02 s03 s04 s05 s06 s06 s07 etc
-```
-
-The x-modem file transfer protocol does not provide any filename or size
-information for the transfer so the updater does not perform any checks
-on the file suitability.
-
-The updater expects the file size to be a multiple of 4 kilobytes and
-will write all data received to the flash device. A system update
-file (128kb .img) or complete ROM can be received and written (512kb or
-1024kb .rom)
-
-If the update fails it is recommended that you retry before rebooting or
-exiting to the Boot loader as your machine may not be bootable.
-
-Option ( D ) - Duplicate flash #1 to flash #2
- 
-This option will make a copy of flash #1 onto flash #2. The purpose of this is to enable
- making a backup copy of the current flash. Intended for systems using 2x512Kb Flash devices.
-
-Option ( V ) - Toggle Write Verify
-
-By default each flash sector will be verified after being written. Slight
-performance improvements can be gained if turned off and could be used if
-you are experiencing reliable transfers and flashing.
-
-## Exit options
-
-Option ( R ) - Reboot
-
-Execute a cold reboot. This should be done after a successful update. If
-you perform a cold reboot after a failed update then it is likely that
-your system will be unusable and removing and reprogramming the flash
-will be required.
-
-Option ( Q ) - Quit to boot loader. 
-
-The SBC Boot Loader is reloaded from ROM and
-executed. After a successful update a Reboot should be performed. However,
-in the case of a failed update this option could be used to attempt to
-load CP/M and perform the normal x-modem / flash process to recover.
-
-## CRC Utility options
-
-Option ( 1 ) and ( 2 ) - Calculate and display CRC32 of 1st or 2nd 512k ROM.
-Option ( 3 ) - Calculate and display CRC32 of a 1024k (2x512Kb) ROM.
-
-Can be used to verify if a ROM image has been transferred and flashed correctly. Refer  to the Teraterm section below for details on configuring the automatic display of a files CRC after it has been transferred.
-
-In Windows, right clicking on a file should also give you a context menu option CRC SHA which will allow you to select a CRC32 calculation to be done on the selected file.
-
-## Tera Term macro configuration 
-
-Macros are a useful tool for automatic common tasks. There are a number of instances where using macros to facilitate the update process could be worthwhile if you are:
-
-* Following the ROMWBW development builds.
-* Doing lots of configuration changes.
-* Doing development on ROMWBW drivers
-
-Macros can be used to automate sending ROM updates or images and for my own purposed I have set up a separate macro for transferring each of the standard build ROM, my own custom configuration ROM and update ROM.
-
-An example macro file to send an *.upd file, using checksum mode and display the crc32 value of the transmitted file:
-
-```
-Xmodem send, checksum, display crc32
-xmodemsend '\\desktop\users\phillip\documents\github\romwbw\binary\sbc_std_cust.upd' 1
-crc32file crc '\\desktop\users\phillip\documents\github\romwbw\binary\sbc_std_cust.rom'
-sprintf '0x%08x' crc
-messagebox inputstr 'crc32'
-```
-
-## Serial speed guidelines
-
-As identified in the introduction, there are limitations on serial speed depending on processor speed and flow control settings. Listed below are some of the results identified during testing.
-
-Platform / Configuration       | Processor Speed | Maximum Serial Speed
--------------------------------|-----------------|---------------------
-SBC-V2  UART no flow control   | 2mhz            | 9600
-SBC-V2  UART no flow control   | 4mhz            | 19200
-SBC-V2  UART no flow control   | 5mhz            | 19200
-SBC-V2  UART no flow control   | 8mhz            | 38400
-SBC-V2  UART no flow control   | 10mhz           | 38400
-SBC-V2  USB-FIFO 2mhz+         |                 | n/a
-SBC-MK4 ASCI no flow control   | 18.432mhz       | 9600
-SBC-MK4 ASCI with flow control | 18.432mhz       | 38400
-
-The **Set Recommend Baud Rate** option in the Updater menu follows the following guidelines.
-
-Processor Speed | Baud Rate
-----------------|----------
-1Mhz            | 4800
-2-3Mhz          | 9600
-4-7Mhz          | 19200
-8-20Mhz         | 38400
-
-These can be customized in the updater.asm source code in the CLKTBL table  if desired.
-Feedback to the ROMWBW developers on these guidelines would be appreciated.
-
-## Notes:
-- All testing was done with Teraterm x-modem, Forcing checksum mode using macros was found to give  the most reliable transfer.
-- Partial writes can be completed with 39SF040 chips. Other chips require entire flash to be erased before being written.
-- An SBC V2-005 MegaFlash or Z80 MBC required for 1mb flash support. The Updater assumes both chips are same type
-- Failure handling has not been tested.
-- Timing broadly calibrated on a Z80 SBC-v2
-- UNA BIOS not supported
diff --git a/Source/Doc/ReadMe.md b/Source/Doc/ReadMe.md
index 61783118..bf0c97da 100644
--- a/Source/Doc/ReadMe.md
+++ b/Source/Doc/ReadMe.md
@@ -114,7 +114,6 @@ Documentation for $doc_product$ includes:
 * $doc_user$
 * $doc_sys$
 * $doc_apps$
-* $doc_romapps$
 * $doc_errata$
 
 # Acknowledgments
@@ -177,8 +176,8 @@ please let me know if I missed you!
 
 * Tasty Basic is a product of Dimitri Theulings.
 
-* Dean Netherton contributed the sound driver interface and
-  the SN76489 sound driver.
+* Dean Netherton contributed eZ80 CPU support, the sound driver
+  interface, and the SN76489 sound driver.
 
 * The RomWBW Disk Catalog document was produced by Mykl Orders.
 
@@ -188,7 +187,11 @@ please let me know if I missed you!
   compendium.
 
 * Martin R has provided substantial help reviewing and improving the
-  User Guide.
+  User Guide and Applications documents.
+  
+* Mark Pruden has also contributed a great deal of content to the
+  Disk Catalog, User Guide as well as contributing the disk image
+  for the Z3PLUS operating system, and the COPYSL utility.
 
 * Jacques Pelletier has contributed the DS1501 RTC driver code.
 
diff --git a/Source/Doc/RomWBW Disk Layouts.xlsx b/Source/Doc/RomWBW Disk Layouts.xlsx
new file mode 100644
index 00000000..ccfebb5f
Binary files /dev/null and b/Source/Doc/RomWBW Disk Layouts.xlsx differ
diff --git a/Source/Doc/SystemGuide.md b/Source/Doc/SystemGuide.md
index c9cdb2ea..4f995772 100644
--- a/Source/Doc/SystemGuide.md
+++ b/Source/Doc/SystemGuide.md
@@ -126,6 +126,274 @@ execution.
 
 ![Bank Switched Memory Layout](Graphics/BankSwitchedMemory){ width=100% }
 
+
+## Bank Id
+
+RomWBW utilizes a specific assignment of memory banks for dedicated
+purposes.  A numeric Bank Id is used to refer to the memory banks.  The
+Bank Id is a single byte.  In general, the Bank Id simply refers to each
+of the 32K banks in sequential order.  In other words, Bank Id 0 is the
+first physical 32K, Bank Id 1 is the second, etc.  However, the high
+order bit of the Bank Id has a special meaning.  If it is 0, it indicates
+a ROM bank is being referred to.  If it is 1, it indicates a RAM bank
+is being referred to.
+
+For example, let's say we have a typical system with 512KB of ROM and
+512KB of RAM.  The Bank Ids would look like this:
+
+| Physical Memory   | Type | Physical Bank | Bank Id   |
+|-------------------|------|---------------|-----------|
+| 0x000000-0x007FFF | ROM  | 0             | 0x00      |
+| 0x008000-0x00FFFF | ROM  | 1             | 0x01      |
+| 0x010000-0x07FFFF | ROM  | 2-15          | 0x02-0x0F |
+| 0x080000-0x087FFF | RAM  | 16            | 0x80      |
+| 0x088000-0x08FFFF | RAM  | 17            | 0x81      |
+| 0x090000-0x0FFFFF | RAM  | 18-31         | 0x82-0x8F |
+
+Note that Bank Id 0x00 is **always** the first bank of ROM and 0x80 is
+**always** the first bank of RAM.  If there were more banks of physical ROM,
+they would be assigned Bank Ids starting with 0x10.  Likewise, additional
+bank of physical RAM would be assigned Bank Ids starting with 0x90.
+
+The Bank Id is used in all RomWBW API functions when referring to
+the mapping of banks to the lower 32K bank area of the processor.  In
+this way, all RomWBW functions can refer to a generic Bank Id without
+needing to understand how a specific hardware platform accesses the
+physical memory areas.  A single routine within the HBIOS is implemented
+for each memory manager that maps Bank Ids to physical memory.
+
+## Bank Assignments
+
+RomWBW requires dedicated banks of memory for specific purposes.  It
+uses Bank Ids via an algorithm to make these assignments.  The following
+table describes the way the banks are assigned.  The Typical column
+shows the specific values that would be assigned for a common system
+with 512KB of ROM and 512KB of RAM (nROM=16, nRAM=16).
+
+| Bank Id           | Identity  | Typical | Purpose                                  |
+|-------------------|-----------|---------|------------------------------------------|
+| 0x00              |BID_BOOT   | 0x00    | Boot Bank (HBIOS image)                  |
+| 0x01              |BID_IMG0   | 0x01    | Boot Loader, Monitor, ROM OSes, ROM Apps |
+| 0x02              |BID_IMG1   | 0x02    | ROM Apps                                 |
+| 0x03              |BID_IMG2   | 0x03    | \<Reserved\>                             |
+| 0x04              |BID_ROMD0  | 0x04    | First ROM Disk Bank                      |
+| nROM - 1          |           | 0x0F    | Last ROM Disk Bank                       |
+| 0x80              |BID_BIOS   | 0x80    | HBIOS (working copy)                     |
+| 0x81              |BID_RAMD0  | 0x81    | First RAM Disk Bank                      |
+| 0x80 + nRAM - 8   |           | 0x88    | Last RAM Disk Bank                       |
+| 0x80 + nRAM - 7   |BID_APP0   | 0x89    | First Application Bank                   |
+| 0x80 + nRAM - 5   |           | 0x8B    | Last Application Bank                    |
+| 0x80 + nRAM - 4   |BID_BUF    | 0x8C    | OS Disk Buffers                          |
+| 0x80 + nRAM - 3   |BID_AUX    | 0x8D    | OS Code Bank                             |
+| 0x80 + nRAM - 2   |BID_USR    | 0x8E    | User Bank (CP/M TPA)                     |
+| 0x80 + nRAM - 1   |BID_COM    | 0x8F    | Common Bank                              |
+
+In this table, nROM and nRAM refer to the number of corresponding
+ROM and RAM banks in the the system.
+
+The contents of the banks referred to above are described in more detail
+below:
+
+Boot Bank:
+
+: The Boot Bank receives control when a system is first powered
+on.  It contains a ROM (read-only) copy of the HBIOS.  At boot, it does
+minimal hardware initialization, then copies itself to the HBIOS bank
+in RAM, then resumes execution from the RAM bank.
+
+Boot Loader:
+
+: The application that handles loading of ROM or Disk based applications
+including operating systems.  It copies itself to a RAM bank at the
+start of it's execution.
+
+Monitor:
+
+: The application that implements the basic system monitor functions.
+It copies itself to a RAM bank at the start of it's execution.
+
+ROM OSes:
+
+: Code images of CP/M 2.2 and Z-System which are copied to RAM and
+executed when a ROM-based operating system is selected in the Boot
+Loader.
+
+ROM Applications:
+
+: Various ROM-based application images such as BASIC, FORTH, etc.  They
+can be selected in the Boot Loader.  The Boot Loader will copy the
+application image to a RAM bank, then transfer control to it.
+
+ROM Disk:
+
+: A sequential series of banks assigned to provide the system ROM Disk
+contents.
+
+HBIOS:
+
+: This bank hosts the running copy of the RomWBW HBIOS.
+
+RAM Disk:
+
+: A sequential series of banks assigned to provide the system RAM Disk.
+
+Application Bank:
+
+: A sequential series of banks that are available for use by applications
+that wish to utilize banked memory.
+
+OS Disk Buffers:
+
+: This bank is used by CP/M 3 and ZPM3 for disk buffer storage.
+
+OS Code Bank:
+
+: This bank is used by CP/M 3 and ZPM3 as an alternate bank for code.
+This allows these operating systems to make additional TPA space
+available for applications.
+
+User Bank:
+
+: This is the default bank for applications to use.  This includes the
+traditional TPA space for CP/M.
+
+Common Bank:
+
+: This bank is mapped to the upper 32K of the processors memory space.
+It is a fixed mapping that is never changed in normal RomWBW operation
+hence the name "Common".
+
+# Disk Layout
+
+RomWBW supports two hard disk layouts: the Classic layout used by 
+RomWBW with 512 directory entries per slice and a Modern layout with 
+1024 directory entries per slice.  These layouts are referred to as
+hd512 and hd1k respectively.
+
+WARNING: You **can not** mix the two hard disk layouts on one hard 
+disk device.  You can use different layouts on different hard disk 
+devices in a single system though.
+
+RomWBW determines which of the hard disk layouts to use for a given 
+hard disk device based on whether there is a RomWBW hard disk 
+partition on the disk containing the slices.   If there is no RomWBW 
+partition, then RomWBW will assume the 512 directory entry format for 
+all slices and will assume the slices start at the first sector of 
+the hard disk.  If there is a RomWBW partition on the hard disk 
+device, then RomWBW will assume the 1024 directory entry format for 
+all slices and will assume the slices are located in the defined 
+partition.
+
+RomWBW supports up to 256 CP/M slices (0-255).  Under hd512, the slices
+begin at the start of the hard disk.  Under hd1k, the slices reside
+within partition type 0x2E.
+
+RomWBW accesses all hard disks using Logical Block Addressing (pure
+sector offset).  When necessary, RomWBW simulates the following disk
+geometry for operating systems:
+
+- Sector = 512 Bytes
+- Track = 16 Sectors (8KB per Track)
+- Cylinder = 16 Tracks (256 Sectors per Cylinder, 128KB per Cylinder)
+
+If one is used, the FAT Partition must not overlap the CP/M slices.
+The FAT partition does not need to start immediately after the CP/M
+slices nor does it need to extend to the end of the hard disk.  Its
+location and size are entirely determined by its corresponding
+partition table entry.
+
+Drive letters in CP/M are ASSIGNed to the numbered slices as desired.  
+At boot, RomWBW automatically assigns up to  8 slices to drive letters 
+starting with the first available drive letter (typically C:).
+
+Microsoft Windows will assign a single drive letter to the FAT partition
+when the CF/SD Card is inserted.  The drive letter assigned has no 
+relationship to the CP/M drive letters assigned to CP/M slices.
+
+In general, Windows, MacOS, or Linux know nothing about the CP/M slices 
+and CP/M knows nothing about the FAT partition.  However, the FAT 
+application can be run under CP/M to access the FAT partition 
+programmatically.
+
+A CP/M slice is (re)initialized using the CP/M command CLRDIR.  A CP/M 
+slice can be made bootable by copying system image to the System Area 
+using SYSCOPY.
+
+The FAT partition can be created from CP/M using the FDISK80 application.
+
+The FAT partition can be initialized using the FAT application from CP/M
+using the command `FAT FORMAT n:` where n is the RomWBW disk unit 
+number containing the FAT partition to be formatted.
+
+## Modern Disk Layout (hd1k)
+
+![Modern Disk Layout](Graphics/hd1k)
+
+The CP/M filesystem on a Modern disk will accommodate 1,024 directory 
+entries.
+
+The CP/M slices reside entirely within a hard disk partition of type
+0x2E.  The number of slices is determined by the number of slices that
+fit within the partition spaces allocated up to the maximum of 256.
+
+## Classic Disk Layout (hd512)
+
+![Classic Disk Layout](Graphics/hd512)
+
+The CP/M filesystem on a Classic disk will accommodate 512 directory 
+entries.
+
+The CP/M slices reside on the hard disk starting at the first sector
+of the hard disk.  The number of CP/M slices is not explicitly recorded
+anywhere on the hard disk.  It is up to the system user to know how
+many slices are being used based on the size of the hard disk media
+and/or the start of a FAT partition.
+
+A partition table may exist within the first sector of the first
+slice.  For Classic disks, the partition table defines only the
+location and size of the FAT partition.  The Partition Table does
+not control the location or number of CP/M slices in any way.
+
+The Partition Table resides in a sector that is shared with the System 
+Area of CP/M Slice 0.  However, the RomWBW implementation of CP/M takes 
+steps to avoid changing or corrupting the Partition Table area.
+
+The FAT partition can be created from CP/M using the FDISK80 
+application.  The user is responsible for ensuring that the start of the
+FAT partition does not overlap with the area they intend to use for 
+CP/M slices.  FDISK80 has a Reserve option to assist with this.
+
+## Mapping to Media ID
+
+HBIOS has a definition of "Media ID", which defines the type and physical
+properties of disk media provided by an underlying storage device. For a 
+complete list of Media ID's please see the following section
+
+[Disk Input/Output (DIO)]
+
+There are two important Media ID's relating to Hard Disk Layouts:
+
+| **Media**  | **ID** | **Format / Meaning**                                        |
+|------------|-------:|-------------------------------------------------------------|
+| MID_HD     |      4 | Classic Disk Layout (hd512) *--and--* HBIOS Hard Disk Drive |
+| MID_HDNEW  |     10 | Modern Disk Layout (hd1k)                                   |
+
+HBIOS typically does not understand the format of data on a device,
+instead just treating all hard disks as raw sectors. `MID_HD` is the typical
+Media ID used by HBIOS to describe high capaity hard disk media
+
+When the Modern Disk Layout was added, the `MID_HDNEW`, was added to
+differentiate (at the oerating system level) between the Classic and Modern layouts.
+
+However HBIOS itself typically does NOT make this distinction, since the use 
+of these two formats is determined by the operating system based on the 
+partition table on the media. 
+There are two important HBIOS functions that deal with Media ID.
+
+* [Function 0x18 -- Disk Media (DIOMEDIA)]
+
+* [Function 0xE0 -- Calculate Slice (EXTSLICE)]
+
 # System Boot Process
 
 A multi-phase boot strategy is employed. This is necessary because at
@@ -393,23 +661,24 @@ All character units are assigned a Device Type ID which indicates
 the specific hardware device driver that handles the unit.  The table
 below enumerates these values.
 
-| **Device Type** | **ID** | **Description**                          | **Driver** |
-|-----------------|-------:|------------------------------------------|------------|
-| CIODEV_UART     | 0x00   | 16C550 Family Serial Interface           | uart.asm   |
-| CIODEV_ASCI     | 0x01   | Z180 Built-in Serial Ports               | asci.asm   |
-| CIODEV_TERM     | 0x02   | Terminal                                 | ansi.asm   |
-| CIODEV_PRPCON   | 0x03   | PropIO Serial Console Interface          | prp.asm    |
-| CIODEV_PPPCON   | 0x04   | ParPortProp Serial Console Interface     | ppp.asm    |
-| CIODEV_SIO      | 0x05   | Zilog Serial Port Interface              | sio.asm    |
-| CIODEV_ACIA     | 0x06   | MC68B50 Asynchronous Interface           | acia.asm   |
-| CIODEV_PIO      | 0x07   | Zilog Parallel Interface Controller      | pio.asm    |
-| CIODEV_UF       | 0x08   | FT232H-based ECB USB FIFO                | uf.asm     |
-| CIODEV_DUART    | 0x09   | SCC2681 Family Dual UART                 | duart.asm  |
-| CIODEV_Z2U      | 0x0A   | Zilog Z280 Built-in Serial Ports         | z2u.asm    |
-| CIODEV_LPT      | 0x0B   | Parallel I/O Controller                  | lpt.asm    |
-| CIODEV_ESPCON   | 0x0B   | ESP32 VGA Console                        | esp.asm    |
-| CIODEV_ESPSER   | 0x0B   | ESP32 Serial Port                        | esp.asm    |
-| CIODEV_SCON     | 0x0B   | S100 Console                             | scon.asm   |
+| **Device Type** | **ID** | **Description**                          | **Driver**   |
+|-----------------|-------:|------------------------------------------|--------------|
+| CIODEV_UART     | 0x00   | 16C550 Family Serial Interface           | uart.asm     |
+| CIODEV_ASCI     | 0x01   | Z180 Built-in Serial Ports               | asci.asm     |
+| CIODEV_TERM     | 0x02   | Terminal                                 | ansi.asm     |
+| CIODEV_PRPCON   | 0x03   | PropIO Serial Console Interface          | prp.asm      |
+| CIODEV_PPPCON   | 0x04   | ParPortProp Serial Console Interface     | ppp.asm      |
+| CIODEV_SIO      | 0x05   | Zilog Serial Port Interface              | sio.asm      |
+| CIODEV_ACIA     | 0x06   | MC68B50 Asynchronous Interface           | acia.asm     |
+| CIODEV_PIO      | 0x07   | Zilog Parallel Interface Controller      | pio.asm      |
+| CIODEV_UF       | 0x08   | FT232H-based ECB USB FIFO                | uf.asm       |
+| CIODEV_DUART    | 0x09   | SCC2681 Family Dual UART                 | duart.asm    |
+| CIODEV_Z2U      | 0x0A   | Zilog Z280 Built-in Serial Ports         | z2u.asm      |
+| CIODEV_LPT      | 0x0B   | Parallel I/O Controller                  | lpt.asm      |
+| CIODEV_ESPCON   | 0x0B   | ESP32 VGA Console                        | esp.asm      |
+| CIODEV_ESPSER   | 0x0B   | ESP32 Serial Port                        | esp.asm      |
+| CIODEV_SCON     | 0x0B   | S100 Console                             | scon.asm     |
+| CIODEV_EZ80UART | 0x11   | eZ80 Built-in UART0 Interface            | ez80uart.asm | 
 
 Character devices can usually be configured with line characteristics
 such as speed, framing, etc. A word value (16 bit) is used to describe
@@ -602,20 +871,24 @@ more of the defined media types.
 | MID_MDROM     | 1      | ROM Drive                                  |
 | MID_MDRAM     | 2      | RAM Drive                                  |
 | MID_RF        | 3      | RAM Floppy (LBA)                           |
-| MID_HD512     | 4      | Hard Disk (LBA) w/ 512 directory entries   |
+| MID_HD        | 4      | Hard Disk (LBA) w/ 512 directory entries   |
 | MID_FD720     | 5      | 3.5" 720K Floppy                           |
 | MID_FD144     | 6      | 3.5" 1.44M Floppy                          |
 | MID_FD360     | 7      | 5.25" 360K Floppy                          |
 | MID_FD120     | 8      | 5.25" 1.2M Floppy                          |
 | MID_FD111     | 9      | 8" 1.11M Floppy                            |
-| MID_HD1K      | 10     | Hard Disk (LBA) w/ 1024 directory entries  |
+| MID_HDNEW     | 10     | Hard Disk (LBA) w/ 1024 directory entries  |
+
+**NOTE**: HBIOS typically does not actually differentiate between MID_HD and 
+MID_HDNEW, it will generally only use MID_HD. 
+See the section [Mapping to Media ID] for information on this.
 
 HBIOS supports both Cylinder/Head/Sector (CHS) and Logical Block 
 Addresses (CHS) when locating a sector for I/O (see DIOSEEK function). 
 For devices that are natively CHS (e.g., floppy disk), the HBIOS driver 
 can convert LBA values to CHS values according to the geometry of the 
 current media.  For devices that are natively LBA (e.g., hard disk), the
- HBIOS driver simulates CHS using a fictitious geometry provided by the 
+HBIOS driver simulates CHS using a fictitious geometry provided by the 
 driver (typically 16 sectors per track and 16 heads per cylinder).
 
 ### Function 0x10 -- Disk Status (DIOSTATUS)
@@ -828,6 +1101,13 @@ Report the Media ID (E) for the for media in the specified Disk Unit
 will be performed.  The Status (A) is a standard HBIOS result code. If 
 there is no media in device, function will return an error status.
 
+**NOTE**: This function will always return MID_HD for hard disk
+devices. See the section [Mapping to Media ID] for information on this.
+To determine if an HD1K formatted partition exists on the hard disk
+please see the following function.
+
+[Function 0xE0 -- Calculate Slice (EXTSLICE)]
+
 ### Function 0x19 -- Disk Define Media (DIODEFMED)
 
 | **Entry Parameters**                   | **Returned Values**                    |
@@ -861,7 +1141,7 @@ DIOMEDIA function to force this if desired.
 | **Entry Parameters**                   | **Returned Values**                    |
 |----------------------------------------|----------------------------------------|
 | B: 0x1B                                | A: Status                              |
-| C: Disk Unit                           | D: Heads                               |
+| C: Disk Unit                           | D: Heads / LBA                         |
 |                                        | E: Sectors                             |
 |                                        | HL: Cylinder Count                     |
 |                                        | BC: Block Size                         |
@@ -871,7 +1151,11 @@ device uses LBA mode addressing natively, then the drivers simulated
 geometry will be returned. The Status (A) is a standard HBIOS result 
 code.  If the media is unknown, an error will be returned.
 
-Heads (D) refers to the number of heads per cylinder.  Sectors (E)
+LBA capability is indicated by D:7.  When set, the device is capable
+of LBA addressing.  Refer to [Function 0x12 -- Disk Seek (DIOSEEK)]
+for more information on specifying LBA vs. CHS addresses.
+
+Heads (D:6-0) refers to the number of heads per cylinder.  Sectors (E)
 refers to the number of sectors per track.  Cylinder Count (HL) is the
 total number of cylinders addressable for the media.  Block Size (BC)
 is the number of bytes in one sector.
@@ -888,14 +1172,15 @@ more than one at a time.  The RTC unit is assigned a Device Type ID
 which indicates the specific hardware device driver that handles the 
 unit.  The table below enumerates these values.
 
-| **Device Type** | **ID** | **Description**                          | **Driver** |
-|-----------------|-------:|------------------------------------------|------------|
-| RTCDEV_DS       | 0x00   | Maxim DS1302 Real-Time Clock w/ NVRAM    | dsrtc.asm  |
-| RTCDEV_BQ       | 0x01   | BQ4845P Real Time Clock                  | bqrtc.asm  |
-| RTCDEV_SIMH     | 0x02   | SIMH Simulator Real-Time Clock           | simrtc.asm |
-| RTCDEV_INT      | 0x03   | Interrupt-based Real Time Clock          | intrtc.asm |
-| RTCDEV_DS7      | 0x04   | Maxim DS1307 PCF I2C RTC w/ NVRAM        | ds7rtc.asm |
-| RTCDEV_RP5      | 0x05   | Ricoh RPC01A Real-Time Clock w/ NVRAM    | rp5rtc.asm |
+| **Device Type** | **ID** | **Description**                          | **Driver**  |
+|-----------------|-------:|------------------------------------------|-------------|
+| RTCDEV_DS       | 0x00   | Maxim DS1302 Real-Time Clock w/ NVRAM    | dsrtc.asm   |
+| RTCDEV_BQ       | 0x01   | BQ4845P Real Time Clock                  | bqrtc.asm   |
+| RTCDEV_SIMH     | 0x02   | SIMH Simulator Real-Time Clock           | simrtc.asm  |
+| RTCDEV_INT      | 0x03   | Interrupt-based Real Time Clock          | intrtc.asm  |
+| RTCDEV_DS7      | 0x04   | Maxim DS1307 PCF I2C RTC w/ NVRAM        | ds7rtc.asm  |
+| RTCDEV_RP5      | 0x05   | Ricoh RPC01A Real-Time Clock w/ NVRAM    | rp5rtc.asm  |
+| RTCDEV_EZ80     | 0x07   | eZ80 on-chip RTC                         | ez80rtc.asm |
 
 The time functions to get and set the time (RTCGTM and RTCSTM) require a
 6 byte date/time buffer in the following format. Each byte is BCD 
@@ -1024,35 +1309,22 @@ used.
 
 ## Display Keypad (DSKY)
 
-The Display Keypad functions provide read/write access to a segment
-style display and associated hex keypad.
-
-HBIOS only supports a single DSKY device since there is no reason to have
-more than one at a time.  The DSKY unit is assigned a Device Type ID 
-which indicates the specific hardware device driver that handles the 
-unit.  The table below enumerates these values.
-
-| **Device Type** | **ID** | **Description**                          | **Driver** |
-|-----------------|-------:|------------------------------------------|------------|
-| DSKYDEV_ICM     | 0x01   | Original ICM7218 based DSKY              | icm.asm    |
-| DSKYDEV_PKD     | 0x02   | Next Gen Intel P8279 based DSKY          | pkd.asm    |
+The Display Keypad functions provide access to a segment or LCD
+style display and associated optional keypad
 
-When segment display function encodes the display data in a byte per
-character format.  Currently, all segment displays are exactly
-8 charadcters and this is assumed in API calls.  The encoding of each
-byte is as shown below:
+HBIOS only supports a single DSKY device since there is no reason to 
+have more than one at a time.  If the system contains multiple DSKY 
+devices, only the first device discovered will be used.  The DSKY unit 
+is assigned a Device Type ID which indicates the specific hardware 
+device driver that handles the unit.  The table below enumerates these 
+values.
 
-```
-  +---01---+
-  |        |
-  20      02
-  |        |
-  +---40---+
-  |        |
-  10      04
-  |        |
-  +---08---+  80
-```
+| **Device Type**    | **ID** | **Description**                       | **Driver** |
+|--------------------|-------:|---------------------------------------|------------|
+| DSKYDEV_ICM        | 0x01   | Original ICM7218 based DSKY           | icm.asm    |
+| DSKYDEV_PKD        | 0x02   | Next Gen Intel P8279 based DSKY       | pkd.asm    |
+| DSKYDEV_GM7303     | 0x03   | GM7303 LCD Display + Keypad           | gm7303.asm |
+| DSKYDEV_LCD        | 0x04   | HD44780-based LCD Display             | lcd.asm    |
 
 The keypad keys are identified by the following key ids.  Not all
 keypads will contain all keys.
@@ -1138,10 +1410,21 @@ The Status (A) is a standard HBIOS result code.
 | HL: Buffer Address                     |                                        |
 
 Display the segment-encoded values on the segment display.  The encoding
-is defined at the start of this section.  The entire displa is updated
-and it is assumed that an 8 character buffer will be pointed to by HL.
-The buffer must reside in high memory.
-The Status (A) is a standard HBIOS result code.
+uses a small alphabet as defined below.  The actual representation of a
+character is determined by the driver.  The entire display is updated 
+and it is assumed that an 8 character buffer will be pointed to by HL. 
+The buffer must reside in high memory. The Status (A) is a standard 
+HBIOS result code.
+
+|               |               |               |               |
+|---------------|---------------|---------------|---------------|
+| 0x00: '0'     | 0x01: '1'     | 0x02: '2'     | 0x03: '3'     |
+| 0x04: '4'     | 0x05: '5'     | 0x06: '6'     | 0x07: '7'     |
+| 0x08: '8'     | 0x09: '9'     | 0x0A: 'A'     | 0x0B: 'B'     |
+| 0x0C: 'C'     | 0x0D: 'D'     | 0x0E: 'E'     | 0x0F: 'F'     |
+| 0x10: ' '     | 0x11: '-'     | 0x12: '.'     | 0x13: 'p'     |
+| 0x14: 'o'     | 0x15: 'r'     | 0x16: 't'     | 0x17: 'A'     |
+| 0x18: 'd'     | 0x19: 'r'     | 0x1A: 'G'     |               |
 
 ### Function 0x35 -- DSKY Keypad LEDs (DSKYKEYLEDS)
 
@@ -1154,9 +1437,8 @@ Light the LEDs for the keypad keys according to the
 bitmap contained in the buffer pointed to by HL.  The buffer
 must be located in high memory and is assumed to be 8 bytes.
 
-At this time, the bitmap is specific to the PKD hardware.
-This function is ignored by the ICM hardware.
-The Status (A) is a standard HBIOS result code.
+At this time, the bitmap is specific to the PKD hardware and will be
+ignored by all other hardware.
 
 ### Function 0x36 -- DSKY Status LED (DSKYSTATLED)
 
@@ -1170,8 +1452,8 @@ Set or clear the status LED specified in D.  The state of
 the LED is contained in E.  If E=0, the LED will be turned
 off.  If E=1, the LED will be turned on.
 
-This function is specific to the PKD hardware.  It will be ignored
-by the ICM hardware.
+This function is specific to the PKD hardware and will be ignored
+by all other hardware.
 The Status (A) is a standard HBIOS result code.
 
 ### Function 0x37 -- DSKY Beep (DSKYBEEP)
@@ -1212,6 +1494,29 @@ servicing the specified unit.  Both of these values are considered
 driver specific.  Refer to the associated hardware driver for the values
 used.
 
+### Function 0x39 -- DSKY Device (DSKYMESSAGE)
+
+| **Entry Parameters**                   | **Returned Values**                    |
+|----------------------------------------|----------------------------------------|
+| B: 0x39                                | A: Status                              |
+| C: Message ID                          |                                        |
+
+Instructs the display to show a textual representation of the associated
+message on the display.  The IDs are defined in std.asm.
+
+### Function 0x3A -- DSKY Device (DSKYEVENT)
+
+| **Entry Parameters**                   | **Returned Values**                    |
+|----------------------------------------|----------------------------------------|
+| B: 0x3A                                | A: Status                              |
+| C: Event ID                            |                                        |
+
+Instructs the display to update itself in response to an internal
+HBIOS state change.  At this time the the events are:
+
+0: CPU Speed Change \
+1: Disk Activity
+
 `\clearpage`{=latex}
 
 ## Video Display Adapter (VDA)
@@ -1879,7 +2184,7 @@ sound will play for the duration defined in HL and then return.
 | **Entry Parameters**                   | **Returned Values**                    |
 |----------------------------------------|----------------------------------------|
 | B: 0x57                                | A: Status                              |
-| C: Disk Unit                           | C: Device Attributes                   |
+| C: Sound Unit                          | C: Device Attributes                   |
 |                                        | D: Device Type                         |
 |                                        | E: Device Number                       |
 |                                        | H: Device Unit Mode                    |
@@ -1902,6 +2207,62 @@ is servicing the specified unit.  Both of these values are considered
 driver specific.  Refer to the associated hardware driver for the values
 used.
 
+### Function 0x58 -- Sound Beep (SNDBEEP)
+
+| **Entry Parameters**                   | **Returned Values**                    |
+|----------------------------------------|----------------------------------------|
+| B: 0x58                                | A: Status                              |
+| C: Sound Unit                          |                                        |
+
+Play a beep tone on the specified Sound Unit (C).  The beep will
+normally be about 1/3 second in duration and the tone will be
+approximately B5.
+
+`\clearpage`{=latex}
+
+## Extension (EXT)
+
+Helper (extension) functions that are not a core part of a BIOS.
+
+### Function 0xE0 -- Calculate Slice (EXTSLICE)
+
+| **Entry Parameters**                   | **Returned Values**                    |
+|----------------------------------------|----------------------------------------|
+| B: 0xE0                                | A: Status                              |
+| D: Disk Unit                           | B: Device Attributes                   |             
+| E: Slice                               | C: Media ID                            |
+|                                        | DEHL: Sector Address                   |
+
+Report the Media ID (C), and Device Attributes (B) for the for media in the
+specified Disk Unit (D), and for hard disks the absolute Sector offset to the
+start of the Slice (E). The Status (A) is a standard HBIOS result code.
+
+This function extends upon [Function 0x18 -- Disk Media (DIOMEDIA)] for hard
+disk media by scanning for a partition to determine if the disk uses HD512
+or HD1K, correctly reporting MID_HD or MID_HDNEW respectively.
+See the folowing for some background [Mapping to Media ID]
+
+It will also return the sector number of the first sector in the
+slice if the slice number is valid. If the slice number is invalid
+(it wont fix on the media) an error will be returned.
+
+The slice calculation is performed by considering the partition start
+(if it exists), the size of a slice for the given format type, and ensuring
+that the slice fits within the media or partition size, taking into
+consideration other partitions that may exist.
+
+The Device Attributes (B) are the same as defined in
+[Function 0x17 -- Disk Device (DIODEVICE)]
+
+If the Unit specified is not a hard disk the Media ID will be returned and
+the slice parameter ignored. If there is no media in device, or the slice
+number is invaid (Parameter Out Of Range) the function will return an error status.
+
+**NOTE:
+This function was placed in HBIOS to be shared between the diffeent CP/M
+varients supported by RomWBW. It is not strictly a BIOS function,
+and may be moved in future.
+
 `\clearpage`{=latex}
 
 ## System (SYS)
@@ -1948,7 +2309,7 @@ The Version (DE)number is encoded as BCD where the 4 digits are:
 
   [Major Version][Minor Version][Patch Level][Build Number]
 
-So, for example, a Version (L) number of 0x3102 would indicate
+So, for example, a Version (DE) number of 0x3102 would indicate
 version 3.1.0, build 2.
 
 The hardware Platform (L) is identified as follows:
@@ -1972,6 +2333,7 @@ The hardware Platform (L) is identified as follows:
 | PLT_Z80RETRO  |15      | Z80 RETRO COMPUTER                      |
 | PLT_S100      |16      | S100 COMPUTERS Z180                     |
 | PLT_DUO       |17      | DUODYNE Z80 SYSTEM                      |
+| PLT_RCEZ80    |24      | RCBUS W/ eZ80                           |
 
 ### Function 0xF2 -- System Set Bank (SYSSETBNK)
 
@@ -2262,6 +2624,9 @@ a double-word binary value.  The frequency of the system timer in Hertz
 is returned in Frequency (C). The returned Status (A) is a standard HBIOS
 result code.
 
+The tick count is a 32 bit binary value.  It will rollover to zero
+if the maximum value for a 32 bit number is reached.
+
 Note that not all hardware configuration have a system timer.  You
 can determine if a timer exists by calling this function repeatedly
 to see if it is incrementing.
@@ -2272,14 +2637,19 @@ to see if it is incrementing.
 |----------------------------------------|----------------------------------------|
 | B: 0xF8                                | A: Status                              |
 | C: 0xD1                                | DEHL: Seconds Count                    |
-|                                        | C: Ticks per Second                    |
+|                                        | C: Remainder Ticks                     |
 
-Return the a Seconds Count (DEHL) with the number of seconds that have 
+Return the Seconds Count (DEHL) with the number of seconds that have 
 elapsed since the system was started.  This is a double-word binary 
-value.  Additionally, the number of Ticks per Second (C) is returned.  
-The returned Status (A) is a standard HBIOS result code.
+value.  Additionally, Remainder Ticks (C) is returned and contains the number
+of ticks that have elapsed within the current second.
+
+Note that Remainder Ticks (C) will have a value from 0 to 49 since there are
+50 ticks per second.  So, Remainder Ticks does not represent a fraction of the
+current second.  Remainder Ticks (C) can be doubled to derive the hundredths of
+milliseconds elapsed within the current second.
 
-This availability of the Seconds Count (DEHL) is dependent on having a 
+The availability of the Seconds Count (DEHL) is dependent on having a 
 system timer active.  If the hardware configuration has no system timer,
 then Seconds Count (DEHL) will not increment.
 
@@ -2915,7 +3285,7 @@ The following section outlines the read only data referenced by the
 | CMDREG | 5  | 1  | IO PORT ADDRESS FOR MODE 1 |
 |        |    |    | _Below are the register mirror values_ |
 |        |    |    | _that HBIOS used for initialisation_ |
-| REG. 0 | 6  | 1  | $00 - NO EXTERNAL VID
+| REG. 0 | 6  | 1  | $00 - NO EXTERNAL VID |
 | REG. 1 | 7  | 1  | $50 or $70 - SET MODE 1 and interrupt if enabled |
 | REG. 2 | 8  | 1  | $00 - PATTERN NAME TABLE := 0 |
 | REG. 3 | 9  | 1  | $00 - NO COLOR TABLE |
diff --git a/Source/Doc/UserGuide.md b/Source/Doc/UserGuide.md
index 04ba281f..c2882d31 100644
--- a/Source/Doc/UserGuide.md
+++ b/Source/Doc/UserGuide.md
@@ -11,11 +11,8 @@ companion documents you should refer to as appropriate:
   of RomWBW.  It includes a reference for the RomWBW HBIOS API
   functions.
 
-* $doc_romapps$ is a reference for the ROM-hosted applications provided
-  with RomWBW including the monitor, programming languages, etc.
-
-* $doc_apps$ is a reference for the OS-hosted proprietary command
-  line applications that were created to enhance RomWBW.
+* $doc_apps$ is a reference for the ROM-hosted and OS-hosted applications
+  created or customized to enhance the operation of RomWBW.
 
 * $doc_catalog$ is a reference for the contents of the disk images
   provided with RomWBW.  It is somewhat out of date at this time.
@@ -225,45 +222,48 @@ by RomWBW along with the standard pre-built ROM image(s).  RomWBW does
 allow for the creation of ROM images with custom configurations.  This
 is discussed in [Customizing RomWBW].
 
-| **Description**                                                | **Bus** | **ROM Image File**    | **Baud Rate** |
-|----------------------------------------------------------------|---------|-----------------------|--------------:|
-| [RetroBrew Z80 SBC]^1^                                         | ECB     | SBC_std.rom           | 38400         |
-| [RetroBrew Z80 SimH]^1^                                        | -       | SBC_simh.rom          | 38400         |
-| [RetroBrew N8 Z180 SBC]^1^ (date code >= 2312)                 | ECB     | N8_std.rom            | 38400         |
-| [Zeta Z80 SBC]^2^, ParPortProp                                 | -       | ZETA_std.rom          | 38400         |
-| [Zeta V2 Z80 SBC]^2^, ParPortProp                              | -       | ZETA2_std.rom         | 38400         |
-| [Mark IV Z180 SBC]^3^                                          | ECB     | MK4_std.rom           | 38400         |
-| [RCBus Z80 CPU Module]^4^, 512K RAM/ROM                        | RCBus   | RCZ80_std.rom         | 115200        |
-| [RCBus Z80 CPU Module]^4^, 512K RAM/ROM, KIO                   | RCBus   | RCZ80_kio.rom         | 115200        |
-| [RCBus Z180 CPU Module]^4^ w/ external banking                 | RCBus   | RCZ180_ext.rom        | 115200        |
-| [RCBus Z180 CPU Module]^4^ w/ native banking                   | RCBus   | RCZ180_nat.rom        | 115200        |
-| [RCBus Z280 CPU Module]^4^ w/ external banking                 | RCBus   | RCZ180_ext.rom        | 115200        |
-| [RCBus Z280 CPU Module]^4^ w/ native banking                   | RCBus   | RCZ180_nat.rom        | 115200        |
-| [Easy Z80 SBC]^2^                                              | RCBus   | RCZ80_easy.rom        | 115200        |
-| [Tiny Z80 SBC]^2^                                              | RCBus   | RCZ80_tiny.rom        | 115200        |
-| [Z80-512K CPU/RAM/ROM Module]^2^                               | RCBus   | RCZ80_skz.rom         | 115200        |
-| [Small Computer SC126 Z180 SBC]^5^                             | BP80    | SCZ180_sc126.rom      | 115200        |
-| [Small Computer SC130 Z180 SBC]^5^                             | RCBus   | SCZ180_sc130.rom      | 115200        |
-| [Small Computer SC131 Z180 Pocket Computer]^5^                 | -       | SCZ180_sc131.rom      | 115200        |
-| [Small Computer SC140 Z180 CPU Module]^5^                      | Z50     | SCZ180_sc140.rom      | 115200        |
-| [Small Computer SC503 Z180 CPU Module]^5^                      | Z50     | SCZ180_sc503.rom      | 115200        |
-| [Small Computer SC700 Z180 CPU Module]^5^                      | RCBus   | SCZ180_sc700.rom      | 115200        |
-| [Dyno Z180 SBC]^6^                                             | Dyno    | DYNO_std.rom          | 38400         |
-| [Nhyodyne Z80 MBC]^1^                                          | MBC     | MBC_std.rom           | 38400         |
-| [Rhyophyre Z180 SBC]^1^                                        | -       | RPH_std.rom           | 38400         |
-| [Z80 ZRC CPU Module]^7^                                        | RCBus   | RCZ80_zrc.rom         | 115200        |
-| [Z80 ZRC CPU Module]^7^ ROMless                                | RCBus   | RCZ80_zrc_ram.rom     | 115200        |
-| [Z80 ZRC512 CPU Module]^7^                                     | RCBus   | RCZ80_zrc512.rom      | 115200        |
-| [Z180 Z1RCC CPU Module]^7^                                     | RCBus   | RCZ180_z1rcc.rom      | 115200        |
-| [Z280 ZZRCC CPU Module]^7^                                     | RCBus   | RCZ280_zzrcc.rom      | 115200        |
-| [Z280 ZZRCC CPU Module]^7^ ROMless                             | RCBus   | RCZ280_zzrcc_ram.rom  | 115200        |
-| [Z280 ZZ80MB SBC]^7^                                           | RCBus   | RCZ280_zz80mb.rom     | 115200        |
-| [Z80-Retro SBC]^8^                                             | -       | Z80RETRO_std.rom      | 38400         |
-| [S100 Computers Z180]^9^                                       | S100    | S100_std.rom          | 57600         |
-| [Duodyne Z80 System]^1^                                        | Duo     | DUO_std.rom           | 38400         |
-| [Heath H8 Z80 System]^10^                                      | H8      | HEATH_std.rom         | 115200        |
-| [EP Mini-ITX Z180]^11^                                         | RCBus?  | EPITX_std.rom         | 115200        |
-| [NABU w/ RomWBW Option Board]^10^                              | NABU    | NABU_std.rom          | 115200        |
+| **Description**                                             | **Bus** | **ROM Image File**           | **Baud Rate** |
+|-------------------------------------------------------------|---------|------------------------------|--------------:|
+| [RetroBrew Z80 SBC]^1^                                      | ECB     | SBC_std.rom                  | 38400         |
+| [RetroBrew Z80 SimH]^1^                                     | -       | SBC_simh.rom                 | 38400         |
+| [RetroBrew N8 Z180 SBC]^1^ (date >= 2312)                   | ECB     | N8_std.rom                   | 38400         |
+| [Zeta Z80 SBC]^2^, ParPortProp                              | -       | ZETA_std.rom                 | 38400         |
+| [Zeta V2 Z80 SBC]^2^, ParPortProp                           | -       | ZETA2_std.rom                | 38400         |
+| [Mark IV Z180 SBC]^3^                                       | ECB     | MK4_std.rom                  | 38400         |
+| [RCBus Z80 CPU Module]^4^, 512K RAM/ROM                     | RCBus   | RCZ80_std.rom                | 115200        |
+| [RCBus Z80 CPU Module]^4^, 512K w/KIO                       | RCBus   | RCZ80_kio_std.rom            | 115200        |
+| [RCBus Z180 CPU Module]^4^ w/ ext banking                   | RCBus   | RCZ180_ext_std.rom           | 115200        |
+| [RCBus Z180 CPU Module]^4^ w/ native banking                | RCBus   | RCZ180_nat_std.rom           | 115200        |
+| [RCBus Z280 CPU Module]^4^ w/ ext banking                   | RCBus   | RCZ280_ext_std.rom           | 115200        |
+| [RCBus Z280 CPU Module]^4^ w/ native banking                | RCBus   | RCZ280_nat_std.rom           | 115200        |
+| [RCBus eZ80 CPU Module]^13^, 512K RAM/ROM                   | RCBus   | RCEZ80_std.rom               | 115200        |
+| [Easy Z80 SBC]^2^                                           | RCBus   | RCZ80_easy_std.rom           | 115200        |
+| [Tiny Z80 SBC]^2^                                           | RCBus   | RCZ80_tiny_std.rom           | 115200        |
+| [Z80-512K CPU/RAM/ROM Module]^2^                            | RCBus   | RCZ80_skz_std.rom            | 115200        |
+| [Small Computer SC126 Z180 SBC]^5^                          | BP80    | SCZ180_sc126_std.rom         | 115200        |
+| [Small Computer SC130 Z180 SBC]^5^                          | RCBus   | SCZ180_sc130_std.rom         | 115200        |
+| [Small Computer SC131 Z180 Pocket Comp]^5^                  | -       | SCZ180_sc131_std.rom         | 115200        |
+| [Small Computer SC140 Z180 CPU Module]^5^                   | Z50     | SCZ180_sc140_std.rom         | 115200        |
+| [Small Computer SC503 Z180 CPU Module]^5^                   | Z50     | SCZ180_sc503_std.rom         | 115200        |
+| [Small Computer SC700 Z180 CPU Module]^5^                   | RCBus   | SCZ180_sc700_std.rom         | 115200        |
+| [Dyno Z180 SBC]^6^                                          | Dyno    | DYNO_std.rom                 | 38400         |
+| [Nhyodyne Z80 MBC]^1^                                       | MBC     | MBC_std.rom                  | 38400         |
+| [Rhyophyre Z180 SBC]^1^                                     | -       | RPH_std.rom                  | 38400         |
+| [Z80 ZRC CPU Module]^7^                                     | RCBus   | RCZ80_zrc_std.rom            | 115200        |
+| [Z80 ZRC CPU Module]^7^ ROMless                             | RCBus   | RCZ80_zrc_ram_std.rom        | 115200        |
+| [Z80 ZRC512 CPU Module]^7^                                  | RCBus   | RCZ80_zrc512_std.rom         | 115200        |
+| [Z180 Z1RCC CPU Module]^7^                                  | RCBus   | RCZ180_z1rcc_std.rom         | 115200        |
+| [Z280 ZZRCC CPU Module]^7^                                  | RCBus   | RCZ280_zzrcc_std.rom         | 115200        |
+| [Z280 ZZRCC CPU Module]^7^ ROMless                          | RCBus   | RCZ280_zzrcc_ram_std.rom     | 115200        |
+| [Z280 ZZ80MB SBC]^7^                                        | RCBus   | RCZ280_zz80mb_std.rom        | 115200        |
+| [Z80-Retro SBC]^8^                                          | -       | Z80RETRO_std.rom             | 38400         |
+| [S100 Computers Z180]^9^                                    | S100    | S100_std.rom                 | 57600         |
+| [Duodyne Z80 System]^1^                                     | Duo     | DUO_std.rom                  | 38400         |
+| [Heath H8 Z80 System]^10^                                   | H8      | HEATH_std.rom                | 115200        |
+| [EP Mini-ITX Z180]^11^                                      | RCBus?  | EPITX_std.rom                | 115200        |
+| [NABU w/ RomWBW Option Board]^10^                           | NABU    | NABU_std.rom                 | 115200        |
+| [S100 FPGA Z80]^9^                                          | S100    | FZ80_std.rom                 | 9600          |
+| [Genesis STD Z180]^12^                                      | STD     | GMZ180_std.rom               | 115200        |
 
 | ^1^Designed by Andrew Lynch
 | ^2^Designed by Sergey Kiselev
@@ -276,6 +276,8 @@ is discussed in [Customizing RomWBW].
 | ^9^Designed by John Monahan
 | ^10^Designed by Les Bird
 | ^11^Designed by Alan Cox
+| ^12^Designed by Doug Jackson
+| ^13^Designed by Dean Netherton
 
 RCBus refers to Spencer Owen's RC2014 bus specification and derivatives
 including RC26, RC40, RC80, and BP80.
@@ -390,7 +392,7 @@ At the Boot Loader prompt, you can type `H <enter>` for help.  You
 can type `L <enter>` to list the available built-in ROM applications.
 If your terminal supports ANSI escape sequences, you can try the
 'P' command to play a simple on-screen game.  Instructions for the
-game are found in $doc_romapps$.
+game are found in $doc_apps$.
 
 If all of this seems fine, your ROM has been successfully programmed.
 See the [Boot Loader Operation] section of this document for further
@@ -644,7 +646,7 @@ return to the Boot Loader menu.  If you are interested in creating a
 custom application to run here, review the "usrrom.asm" file in the
 Source/HBIOS folder of the distribution.
 
-Each of the ROM Applications is documented in $doc_romapps$.  Some
+Each of the ROM Applications is documented in $doc_apps$.  Some
 of the applications (such as BASIC) also have their own independent
 manual in the Doc directory of the distribution.  The OSes included
 in the ROM (CP/M 2.2 & Z-System) are described in the Operating Systems
@@ -785,23 +787,62 @@ the [Disk Images] section of this document.
 
 ### Auto-Submit Batch Files
 
-All of the operating systems supplied with RomWBW have the ability to
-execute a "batch" of commands by creating a batch submission file
-containing the commands to be executed.  The specifics of using
-batch files in a specific operating system is covered in its specific
-documentation.
+All of the operating systems supplied with RomWBW have the ability to 
+execute a "batch" of commands by creating a batch submission file 
+containing the commands to be executed. The mechanism for running 
+commands automatically at startup varies by operating system.  In some 
+cases, it was built into the original operating system.  In other cases,
+I have added this capability in the RomWBW BIOS of the operating 
+system.
 
-At boot, the operating system will look for a specific batch file 
-(`PROFILE.SUB` for CP/M 2.2 and 3) on the boot drive and execute that 
-batch file automatically.  This allows you to automatically customize 
-your operating system with any commands desired at boot.  CP/M 2.2 did 
-not originally have the ability to automatically excute a batch file at 
-boot, but the CBIOS in RomWBW has added this capability.
+In all cases, the file containing the commands to run at startup must
+be on the boot drive (A:).  RomWBW automatically assigns A: to the
+disk slice you choose to boot.  Adding a startup command file to the
+ROM Disk is not recommended because it would require customizing and
+building a new ROM.  Use of bootable disk slices is preferred since
+the startup command files can be added/edited without any special
+system customization.
+
+Here is an overview for each operating system:
+
+- **CP/M 2.2** - Will run PROFILE.SUB as a SUBMIT file if it exists in
+  A: at startup.  Note that original CP/M 2.2 itself did not have this
+  ability -- it was added to the RomWBW CP/M 2.2 BIOS.  The use of SUBMIT
+  files is documented in Section 1.6.7 SUBMIT Command of the CPM Manual 
+  included in the Doc/CPM folder of the RomWBW distribution.
+
+- **Z-System (ZSDOS 1.1)** - Will run run PROFILE.SUB as a SUBMIT file 
+  if it exists in A: at startup.  Works exactly the same as CP/M 2.2.
+  The original Z-System ZSDOS 1.1 did not have this ability -- it was
+  added to the RomWBW Z-System BIOS.  The Z-System documentation does
+  not cover the use of SUBMIT files -- please refer to the CP/M 2.2
+  documentation.
+
+- **NZCOM** - Will run the command STARTZCM at startup.  This is 
+  normally an alias file.  You use SALIAS to edit such files.  Please see 
+  Section 3.1 Creating an Alias of the NZCOM Users Manual included in the 
+  Doc/CPM folder of the RomWBW distribution.  Note that the NZCOM 
+  distribution includes a PROFILE.SUB file.  NZCOM itself is launched from 
+  ZSDOS.  The included PROFILE.SUB accomplishes this.  Do not modify this 
+  file unless you fully understand the NZCOM boot process.
+
+- **CP/M 3** - Will run PROFILE.SUB as a SUBMIT file if it exists in A: 
+  at startup.  This mechanism is built into the CP/M 3 operating system.  
+  Please see Section 4.5 Executing Multiple Commands and Section 5.2.74 
+  Executing the SUBMIT Command of the CPM3 Users Guide included in the 
+  Doc/CPM folder of the RomWBW distribution.
+
+- **ZPM3** - Will run the command STARTZPM at startup.  This is normally
+  an alias file.  You use SALIAS to edit such files.  ZPM3 has no real 
+  documentation.  The NZCOM documentation of STARTZCM is generally correct
+  for ZPM3.
 
 Since RomWBW can utilize many disk slices, it is very easy to create 
 slices for specific workflows (editing, software development, games, 
 etc.). You can then just boot to the slice that is optimized for the 
-task you want to perform.
+task you want to perform.  Each such slice may have its own startup
+command batch file that customizes the environment for the specific
+workflow desired.
 
 ## System Management
 
@@ -984,34 +1025,77 @@ switches can be used to select any of the first 8 slices.
 
 # Disk Management
 
-The systems supported by RomWBW all have the ability to use persistent
-disk media. A wide variety of disk devices are supported including
-floppy drives, hard disks, CF Cards, SD Cards, etc.  RomWBW also
-supports the use of extra RAM and ROM memory as pseudo-disk devices.
+The systems supported by RomWBW all have the ability to use persistent 
+disk media. Some systems have disk interfaces built-in, while others 
+will require add-in cards. You will need to refer to the documentation 
+for your system for your specific options.
+
+The RomWBW firmware provides a hardware abstraction layer, 
+All disks will work on all hardware variations.
+This means you can remove disk media from one RomWBW system and
+put it in a different RomWBW system. The only constraint is that the
+applications on the disk media must be up to date with the firmware on
+the system being used.
+
+## Key Terminology/Concepts
+
+The following important terminology applies
+
+#### Disk (or Disk Drive)
+
+The hardware storage device that RomWBW talks to. 
+RomWBW supports a variety of storage disk device types.
+
+* ROM Disk - RomWBW firmware - containing CPM utilities
+* RAM Disk - A section of system RAM initially empty
+* Floppy Disk(s) - Removable media
+* Hard Disk(s) - Includes CF Cards, SD Cards, USB Stick, etc.
+
+The different disk types are further defined in the section [Disk Types].
+
+#### Media
+
+The storage device inserted into a disk drive, e.g. a floppy disk, CF 
+Card, SD Card, etc.
+
+#### Slice
+
+For hard disks a Slice is a smaller logical block of disk space that is 
+allocated and formatted with a filesystem and typically allocated to a 
+Drive letter. Slices allow large modern storage media to be sliced up 
+into smaller units compatible with CP/M. Slices should not be confused 
+with partitions, a slice is not a partition.
+
+The concept of slices is described in detail in the section
+[Hard Disk Slices].
+
+#### Drive
 
-RomWBW supports a variety of storage devices which will be discussed
-in more detail later.
+The mapping of a hardware disk (and slice) to a Drive letter 
+in an operating system. A Drive has a file system installed on it 
 
-* ROM Disk
-* RAM Disk
-* Floppy Disk
-* Hard Disk (includes CF Cards, SD Cards, USB Drives, etc.)
+#### Disk Image
 
-We will start by discussing each of these types of storage devices and
-how to prepare them so files can be stored on them.  Subsequently, we
-will describe how to install the pre-built disk images with bootable
-operating systems and ready-to-run content.
+A disk image is a predefined image of a complete CP/M filesystem, 
+or filesystem(s), including any partition tables (for hard disk images).
+Each disk image has the complete set of normal applications and tools
+distributed with the associated operating system or application suite.
+
+This comes in for form of a file which is suitable for copying directly 
+onto target media, using a modern computer. It is generally easier to 
+use these disk images than transferring files over individually. 
+See the section [Disk Images] for further details.
 
-Some systems have disk interfaces built-in, while others will require
-add-in cards. You will need to refer to the documentation for your
-system for your specific options.
+## Startup Hardware Discovery
+
+During startup RomWBW performs detection for hardware supported by your 
+platform. During startup you will see messages for any disk 
+interface(s), listing device types (e.g. FD:, IDE:, SD:), and any media 
+that has been found on these interfaces. The messages you see will vary 
+depending on your hardware and the media you have installed.
 
-In the RomWBW boot messages, you will see hardware discovery messages.
-If you have a disk drive interface, you should see messages listing
-device types like FD:, IDE:, PPIDE:, SD:. Additionally, you will see
-messages indicating the media that has been found on the interfaces.
 As an example, here are the messages you might see if you have an IDE
-interface in your system with a single CF Card inserted in the
+interface in your system with a single disk drive connected to the
 primary side of the interface:
 
 ```
@@ -1020,72 +1104,45 @@ IDE0: 8-BIT LBA BLOCKS=0x00773800 SIZE=3815MB
 IDE1: NO MEDIA
 ```
 
-The messages you see will vary depending on your hardware and the
-media you have installed. But, they will all have the same general
-format as the example above.
+See [Appendix B - Device Summary] for a complete list of the different 
+device types supported.
+
+If you do not see drive letters assigned as expected, refer to the prior 
+system boot messages to ensure media has been detected in the interface. 
+
+Each drive letter refers back to a specific disk hardware interface like
+IDE0. This is important as it is telling you what each drive letter 
+refers to. 
+
+Mass storage disks (like IDE) will normally have multiple drive letters 
+assigned. The extra drive letters refer to additional "slices" on the 
+disk. 
 
 Once your system has working disk devices, they will be accessible
 from any operating system you choose to run.  Disk storage is available
 whether you boot your OS from ROM or from the disk media itself.
 
-Referring back to [Starting Applications from ROM], you could start CP/M
-2.2 using the 'C' command.  As the operating system starts up, you 
-should see a list of drive letters assigned to the disk media you have 
-installed. Here is an example of this:
-
-```
-Configuring Drives...
-
-   A:=MD1:0
-   B:=MD0:0
-   C:=IDE0:0
-   D:=IDE0:1
-```
+## Drive Letter Assignment
 
-You will probably see more drive letters than this. The drive letter
-assignment process is described below in the [Drive Letter Assignment]
-section. Be aware that RomWBW will only assign drive letters to disk
-interfaces that actually have media in them. If you do not see drive
-letters assigned as expected, refer to the prior system boot messages
-to ensure media has been detected in the interface. Actually, there
-is one exception to this rule: floppy drives will be assigned a drive
-letter regardless of whether there is any media inserted at boot.
-
-Notice how each drive letter refers back to a specific disk hardware
-interface like IDE0. This is important as it is telling you what each
-drive letter refers to. Also notice that mass storage disks (like IDE)
-will normally have multiple drive letters assigned. The extra drive
-letters refer to additional "slices" on the disk. The concept of slices
-is described below in the [Slices] section.
+In legacy CP/M operating systems only 16 drive letters (A:-P:) available
+ to be assigned to disks Drive letters were generally mapped to disk 
+drives in a completely fixed way. For example, drive A: would **always**
+ refer to the first floppy disk drive.
 
-## Drive Letter Assignment
+RomWBW implements a much more flexible drive letter assignment mechanism 
+so that any drive letter can dynamically be assigned to any disk device, 
+or slice of media.
 
-In legacy CP/M-type operating systems, drive letters were generally
-mapped to disk drives in a completely fixed way. For example, drive A:
-would **always** refer to the first floppy drive. Since RomWBW
-supports a wide variety of hardware configurations, it implements a
-much more flexible drive letter assignment mechanism so that any drive
-letter can be assigned to any disk device.
-
-At boot, you will notice that RomWBW automatically assigns drive
-letters to the available disk devices. These assignments are
-displayed during the startup of the selected operating system.
-Additionally, you can review the current drive assignments at any
-time using the `ASSIGN` command. CP/M 3 and ZPM3 do not automatically
-display the assignments at startup, but you can use `ASSIGN` to
-display them.  Refer to $doc_apps$ for more information on
-use of the `ASSIGN` command.
+For clarification, CP/M **cannot** refer directly to disk devices,
+CP/M only understands drive letters, so to access a given disk device
+it must first be assigned to a drive letter.
 
+As the operating system starts up, you should see a list of drive letters
+assigned to the disk media you have installed. 
 Here is an example of the list of drive letter assignments made during
 the startup of Z-System:
 
 ```
-Loading Z-System...
-
-CBIOS v3.1.1-pre.194 [WBW]
-
-Formatting RAMDISK...
-
 Configuring Drives...
 
         A:=MD0:0
@@ -1096,65 +1153,53 @@ Configuring Drives...
         F:=IDE0:1
         G:=IDE0:2
         H:=IDE0:3
+```
 
-        1081 Disk Buffer Bytes Free
+Above you can see that:
 
-ZSDOS v1.1, 54.0K TPA
-```
+- Drive A: has been assigned to MD0 which is the RAM disk device.
+- Drive B: has been assigned to MD1 which is the ROM disk device.
+- Drives C: and D: have been assigned to floppy disk drives.
+- Drives E: thru H: have been assigned to the IDE0 hard disk device.
+  The 4 entries for IDE0 are referring to the first 4 slices on that disk.
 
-Above you can see that drive A: has been assigned to MD0 which is the
-RAM Disk device.  Drives C: and D: have been assigned to floppy drives.
-Drives E: thru L: have been assigned to the IDE0 hard disk device.  The
-4 entries for IDE0 are referring to 4 slices on that disk.  Slices are
-discussed later.
+CP/M 3 and ZPM3 do not automatically display the assignments at startup,
+but you can use `ASSIGN` to display them.
 
-**WARNING**: Drive letter assignments do **not** ensure that the slice
-referenced by the drive letter actually fits on the media you are using.
-For example, a typical 64MB CF Card (which is typically a bit smaller
-than 64MB) will only fit 7 slices.  At startup, you will typically see
-8 drive letters assigned to the CF Card.  Attempting to access the
-last drive letter will result in a "no disk" error from the operating
-system.
+The assignments at boot will stay the same on each boot
+as long as you do not make changes to your hardware configuration.
+i.e. If you insert or remove an SD Card, CF Card or USB Stick, the drive
+assignments will change at next boot.
 
-The drive letter assignments **do not** change during an OS session 
-unless you use the `ASSIGN` command yourself to do it. Additionally, the
-assignments at boot will stay the same on each boot as long as you do 
-not make changes to your hardware configuration. Note that the 
-assignments **are** dependent on the media currently inserted in hard 
-disk drives when the operating system is started. So, notice that if you
-insert or remove an SD Card, CF Card or USB Drive, the drive 
-assignments will change. Since drive letter assignments can change, you 
-must be careful when doing destructive things like using `CLRDIR` to 
+Since drive letter assignments can change, you
+must be careful when doing destructive things like using `CLRDIR` to
 make sure the drive letter you use is referring to the desired media.
 
-When performing a ROM boot of an operating system, note that A: will
-be your RAM disk and B: will be your ROM disk. When performing a disk
-boot, the disk you are booting from will be assigned to A: and the
-rest of the drive letters will be offset to accommodate this. This is
-done because most legacy operating systems expect that A: will be the
-boot drive.
+Drive assignments can be changed at any time, by the `ASSIGN` command.
+Please see the section [Assign Drive Letters] for further details.
 
-### Default Drive Letter Assignment
+### Default Drive Letters
 
-As shown above, when an operating system is booted, RomWBW will 
-automatically assign drive letters to physical disk devices.  The 
-assignment process varies depending on: 1) the drive/slice you choose to
-boot from, and 2) the number and type of physical drives in your 
-system.
+When an operating system is booted, RomWBW will automatically assign 
+drive letters to disk devices. The assignment process varies depending on:
 
-If you boot an operating system from ROM, then the first two drive
-letters will be assigned to your RAM disk (A:) and your ROM disk (B:).
-It may seem odd that the RAM disk is assigned to A: in this case.  The
-reason for this is to accommodate certain functions that require that A:
-be a writable disk drive.  For example, A: **must** be writable in order
-to submit batch files.
+* the disk/slice you choose to boot from, and 
+* the number, type, and sizes of mass storage devices available at boot
+
+The A: drive letter is considered special by most CP/M operating systems
+and is automatically used in some cases. e.g. submitting batch files, 
+and is expected to be a writable volume. 
 
 If you boot to a physical disk device, then the first drive letter (A:) 
-will be assigned to the disk/slice that you chose to boot from.  The A: 
-drive letter is considered special by most operating systems and is 
-automatically used in some cases.  By making the selected disk/slice the
-A: drive, you can setup different disks/slices for specific uses and 
-just boot to it.
+will be assigned to the disk/slice that you are booting from,
+and the rest of the drive letters will be offset to accommodate this.
+By making the selected disk/slice the A: drive, you can setup different
+disks/slices for specific uses and just boot it, 
+and the booted operating system will be the A: drive
+
+However when performing a ROM boot of an operating system, the first two
+drive letters will be assigned to your RAM disk (A:) and your ROM disk 
+(B:). This provides the maximum compatibility with CP/M.
 
 After the first drive letter is assigned (as well as the second drive 
 letter in the case of a ROM boot), RomWBW will assign additional drive 
@@ -1169,9 +1214,8 @@ letters will be assigned in the following order:
 If a disk/slice was already assigned as the A: (or B:) drive letter, 
 then it will not be assigned again.
 
-In the case of floppy, RAM, and ROM disks, a single drive letter will be
-assigned to each physical disk (even if there is no disk media in the 
-drive).
+Floppy or removable disk drives will be assigned a drive letter 
+regardless of whether there is any media inserted at the time of boot.
 
 In the case of hard disks, 1-8 drive letters will be assigned to the
 initial 1-8 slices of the disk drive.  The number of drive letters
@@ -1186,18 +1230,122 @@ This somewhat complicated algorithm is used to try and maximize the
 limited number of operating system drive letters available (16) to
 the available disk devices as evenly as possible.
 
-Note that for hard disk devices, drive letters will only be assigned
-to disk devices that actually contain media.  So, for example, if you
-have an SD Card slot in your system, but it has no SD Card inserted, then
-no drive letters will be assigned to it.
+For hard disk devices which are treated as non-removable media, drive 
+letters will only be assigned to disk devices that actually contain 
+media.  i.e. No drive letters will be assigned to an SD Card slot that 
+has no SD Card inserted.
 
-Since drive letter assignments are easily changed at any time using the 
-`ASSIGN` command, you can customize your assignments as desired after 
-starting the operating system.  Even better, you can use an auto-submit 
-batch file to customzie the assignments at startup without any user 
+### Assign Drive Letters
+
+The `ASSIGN` command is used to view or change the current 
+drive letter mappings. Any changes made to drive letter mappings take 
+immediate effect 
+
+Refer to $doc_apps$ for more information on use of the `ASSIGN` command.
+
+Since drive letter assignments are easily changed at any time using the
+`ASSIGN` command, you can customize your assignments as desired after
+starting the operating system.  Even better, you can use an auto-submit
+batch file to customzie the assignments at startup without any user
 intervention.
 
-## ROM & RAM Disks
+## Disk Operations/Commands
+
+With some understanding of how RomWBW presents disk space to the
+operating systems, we need to go over the options for actually setting
+up your disk(s) with content.
+
+### Preparing Media for First Use
+
+You can initialize the media in-place using your RomWBW system.
+Essentially, this means you are creating a set of blank directories on
+your disk so that files can be saved there.
+This is somewhat analogous to partitioning of a hard disk
+or doing a low level format of a floppy disk.
+
+Initilizing a Floppy disk is covered in the section [Floppy Disk Formatting],
+or for a Hard disk the section [Hard Disk Preparation] covers the steps to 
+manually setup a hard disk for first use. 
+
+### Clearing (Formatting) Drives 
+
+This is somewhat analogous to doing a FORMAT operation on other systems.
+
+With RomWBW you use the `CLRDIR` command to do this.
+This command is merely "clearing out" the directory space of the drive
+referred to by a drive letter and setting up the new empty directory.
+
+Refer to $doc_apps$ for more information on use of the `CLRDIR` command.
+
+Since `CLRDIR` works on drive letters, make
+absolutely sure you know what media and slice are assigned to that
+drive letter before using `CLRDIR` because `CLRDIR` will wipe out any
+pre-existing contents of the slice.
+
+After `CLRDIR` completes, the slice should be ready to use by the operating
+system via the drive letter assigned.
+Start by using the `DIR` command on the drive.
+This should return without error, but list no files.
+
+Here is an example of using `CLRDIR`.  In this example, the `ASSIGN`
+command is used to show the current drive letter assignments.  Then
+the `CLRDIR` command is used to initialize the directory of drive 'G'
+which is slice 2 of hard disk device IDE0 ("IDE0:2").
+
+```
+B>ASSIGN
+
+   A:=MD0:0
+   B:=MD1:0
+   C:=FD0:0
+   D:=FD1:0
+   E:=IDE0:0
+   F:=IDE0:1
+   G:=IDE0:2
+   H:=IDE0:3
+
+B>CLDIR G:
+CLRDIR Version 1.2B May 2024 by Max Scane
+
+Warning - this utility will overwrite the directory sectors of Drive: G
+Type CAPITAL Y to proceed, any key other key to exit. Y
+Directory cleared.
+B>
+```
+
+### Checking Disk Layout
+
+If you are not sure which disk layout is used for your existing
+media, you can use the CP/M 2.2 `STAT` command to display information
+including the number of "32  Byte Directory Entries"
+for a drive letter on the corresponding hard disk.  
+
+- If it indicates 512, your disk layout is legacy (hd512).  
+- If it indicates 1024, your disk layout is modern (hd1k).
+
+Here is an example of checking the disk layout.  
+
+```
+B>STAT E:DSK:
+
+    E: Drive Characteristics
+65408: 128 Byte Record Capacity
+ 8176: Kilobyte Drive  Capacity
+ 1024: 32  Byte Directory Entries
+    0: Checked  Directory Entries
+  256: Records/ Extent
+   32: Records/ Block
+   64: Sectors/ Track
+    2: Reserved Tracks
+```
+
+It is critical that you include `DSK:` after the drive letter in the
+`STAT` command line.  The important line to look at is labeled "32 Byte
+Directory Entries".
+
+# Disk Types
+
+## RAM & ROM Disks
 
 A typical RomWBW system has 512KB of ROM and 512KB of RAM.  Some
 portions of each are dedicated to loading and running applications
@@ -1205,10 +1353,23 @@ and operating system.  The space left over is available for an
 operating system to use as a pseudo-disk device (ROM Disk and RAM
 Disk).
 
+Unlike other types of disk devices, ROM and RAM Disks do not contain an
+actual operating system and are not "bootable".  However, they are
+accessible to any operating system (whether the operating system is
+loaded from ROM or a different disk device).
+
+Neither RAM nor ROM disks require explicit formatting or initialization.
+ROM disks are pre-formatted and RAM disks are formatted automatically
+with an empty directory when first used.
+
+#### RAM Disk
+
 The RAM disk provides a small CP/M filesystem that you can use for the
 temporary storage of files. Unless your system has a battery backed
 mechanism for persisting your RAM contents, the RAM disk contents will
-be lost at each power-off. However, the RAM disk is an excellent
+be lost at each power-off. 
+
+The RAM disk is an excellent
 choice for storing temporary files because it is very fast.  You will
 notice that the first time an operating system is started after the
 power was turned off, you will see a message indicating that the
@@ -1216,10 +1377,14 @@ RAM disk is being formatted.  If you reset your system without
 turning off power, the RAM disk will not be reformatted and it's
 contents will still be intact.
 
+#### ROM Disk
+
 Like the RAM disk, the ROM disk also provides a small CP/M
 filesystem, but it's contents are static -- they are part of the
 ROM. As such, you cannot save files to the ROM disk. Any attempt to
-do this will result in a disk I/O error. The contents of the ROM
+do this will result in a disk I/O error. 
+
+The contents of the ROM
 disk have been chosen to provide a core set of tools and
 applications that are helpful for either CP/M 2.2 or ZSDOS. Since
 ZSDOS is CP/M 2.2 compatible, this works fairly well. However, you
@@ -1227,15 +1392,6 @@ will find some files on the ROM disk that will work with ZSDOS, but
 will not work on CP/M 2.2. For example, `LDDS`, which loads the
 ZSDOS date/time stamper will only run under ZSDOS.
 
-Unlike other types of disk devices, ROM and RAM Disks do not contain an
-actual operating system and are not "bootable".  However, they are
-accessible to any operating system (whether the operating system is
-loaded from ROM or a different disk device).
-
-Neither RAM nor ROM disks require explicit formatting or initialization.
-ROM disks are pre-formatted and RAM disks are formatted automatically
-with an empty directory when first used.
-
 #### Flash ROM Disks
 
 The limitation of ROM disks being read-only can be overcome on some
@@ -1258,24 +1414,257 @@ derived from the IBM PC floppy disk formats:
 * 3.5" 720K Double-sided, Double-density
 * 3.5" 1.44M Double-sided, High-density
 
-When supported, RomWBW is normally configured for 2 3.5" floppy drives.
-If a high-density drive is used, then RomWBW automatically detects and
+When supported, RomWBW is normally configured for 2 3.5" floppy disk drives.
+If a high-density disk drive is used, then RomWBW automatically detects and
 adapts to double-density or high-density media.  It cannot automatically
-detect 3.5" vs. 5.25" drive types -- the ROM must be pre-configured
-for the drive type.
-
-Floppy media must be physically formatted before it can be used.  This 
-is normally accomplished by using the supplied Floppy Disk Utility (FDU)
-application.  This application interacts directly with your hardware 
-and therefore you must specify your floppy interface hardware at 
-application startup. Additionally, you need to specify the floppy drive 
+detect 3.5" vs. 5.25" disk drive types -- the ROM must be pre-configured
+for the disk drive type.
+
+**WARNING:** Some of the operating systems provided with RomWBW require
+that a soft-reset be performed when swapping floppy disk media.  For
+example, under CP/M 2.2, you must press control-C at the CP/M prompt
+after inserting a new floppy disk.  The consequences of failing to
+perform the soft-reset vary from unexpected error messages to full
+disk directory corruption.
+
+## Hard Disks
+
+The concept of a hard disk in RomWBW applies to any
+storage device that provides at least 8MB of space.  The actual
+media can be a real spinning hard disk, a CompactFlash Card, a
+SD Card, etc.  In this document, the term hard disk will apply
+equally to all of these.
+
+The vintage operating systems included with RomWBW were produced at a
+time when mass storage devices were quite small. CP/M 2.2 could only
+handle filesystems up to 8MB.
+
+Since storage devices today are quite large, RomWBW implements a
+mechanism called slicing (see [Hard Disk Slices]) to allow 
+up to 256 8MB CP/M filesystems on a single large storage device,
+where each slice can be assigned to a drive letter in CPM, 
+and be treated as its own hard disk drive (from a CPM perspective).
+
+In order to achieve compatibility across all of the operating systems 
+supported by RomWBW, the hard disk filesystem format used is 8MB. This 
+ensures any filesystem will be accessible to any of the operating 
+systems.
+
+RomWBW uses Logical Block Addressing (LBA) to interact with all hard
+disks.  The RomWBW operating systems use older Cylinder/Head/Sector
+(CHS) addressing.  To accommodate the operating systems, RomWBW emulates
+CHS addressing.  Specifically, it makes all hard disks look like they
+have 16 sectors and 16 heads.  The number of tracks varies with the size
+of the physical hard disk.
+
+### Hard Disk Layouts
+
+When RomWBW uses a hard disk, it utilizes an area of the physical hard 
+disk drive space to store a sequential series of slices that contain the
+actual CP/M filesystems referred to by drive letters by the operating 
+system.
+
+Two physical layout schemes exist:
+
+* Modern (hd1k)
+* Legacy (hd512)
+
+You **cannot** mix disk layouts on a single disk device, 
+however It is perfectly fine for one system to have
+multiple hard disks with different layouts -- each physical disk
+device is handled separately.
+
+If you are setting up a new disk, the modern (hd1k) layout is
+recommended for the following reasons:
+
+* Larger number of directory entries per filesystem
+* Simplifies creation of coresident FAT filesystem
+* Reduces chances of data corruption
+
+Both the legacy and modern disk layouts continue to be fully supported
+by RomWBW.  There are no plans to deprecate the legacy layout.  
+
+#### Modern Layout
+
+RomWBW (Starting with v3.2) supports the use of disk partitioning, 
+utilising a Master Boot Record (MBR) partition tables.
+The Wikipedia article on the
+[Master Boot Record](https://en.wikipedia.org/wiki/Master_boot_record)
+is excellent if you are not familiar with them. 
+
+RomWBW uses the partition type id `0x2E`. This partition type id 
+does not equate to any existing well-known
+partition types -- it was chosen because it is not generally used.
+RomWBW does not support extended partitions -- only a single
+primary partition can be used.
+
+The existence of a partition table entry for RomWBW on
+a hard disk makes it behave in the modern mode. Removing the RomWBW 
+partition entry from a modern hard disk layout 
+will cause the existing data to be unavailable and/or corrupted
+
+The CP/M filesystem in the slices of the modern disk layout 
+contain 1024 directory entries.
+
+#### Legacy Layout
+
+Originally, RomWBW always used the very start of the hard disk media
+for the location of the slices.  In this layout, slice 0 referred to
+the first chunk of ~8MB on the disk, slice 1 referred to the second
+chunk of ~8MB on the disk, and so on. The number of slices is limited
+to the size of the disk media -- if you attempted to read/write to a
+slice that would exceed the disk size, you would see I/O errors. 
+
+The legacy format takes steps to allow a partition table to still be
+used for other types of filesystems such as DOS/FAT.  It just does not
+use a partition table entry to determine the start of the RomWBW slices.
+
+The lack of a RomWBW partition table entry will cause legacy behaviour.
+Adding a partition table entry on an existing legacy RomWBW hard disk 
+will cause the existing data to be unavailable and/or corrupted.
+
+The CP/M filesystem in the slices of the legacy disk layout 
+contain 512 directory entries.
+
+### Hard Disk Slices
+
+RomWBW implements a mechanism called slicing to allow multiple CP/M 
+filesystem on a single large storage device. To say it another way, the 
+media is "sliced up" into many CP/M filesystems.
+
+You cannot use slices on any media less than 8MB in size.
+Specifically, you cannot slice RAM disks, ROM disks, floppy
+disks, etc.  All of these are considered to have a single slice (0)
+
+It is very important to understand that RomWBW slices are not
+individually created or allocated on your hard disk.
+RomWBW uses a single partition on your hard disk to contain
+the slices. You should think of slices as just an index into a
+sequential set of 8MB areas that exist in this partition.
+
+RomWBW allows up to up to 256 slices each of 8MB in size on a single 
+large storage device. This allows the use of up to 2GB of usable space 
+on one media device.
+
+It is possible to create other partitions (typically FAT), for now, we
+are just talking about the slices within the single RomWBW partition.
+
+### Slice Assignment
+
+When assigning Hard disks to drive letters you also need to assign the 
+slice.
+
+Referring to slices within a storage device is done by appending a
+`:<n>` where \<n\> is the device relative slice number from 0-255.
+For example, if you have an IDE device, it will show up as IDE0: in the
+boot messages meaning the first IDE device. To refer to the fourth slice
+of IDE0, you would type "IDE0:3". Here are some examples:
+
+|          |                              |
+|----------|------------------------------|
+| `IDE0:0` | First slice of disk in IDE0  |
+| `IDE0:`  | First slice of disk in IDE0  |
+| `IDE0:3` | Fourth slice of disk in IDE0 |
+
+So, if you wanted to use drive letter L: to refer to the fourth slice of
+IDE0, you could use the command `ASSIGN L:=IDE0:3`. There are a couple
+of rules to be aware of when assigning drive letters. First, you may
+only refer to a specific device/slice with one drive letter at a time.
+Said another way, you cannot have multiple drive letters referring to a
+the same device/slice at the same time. Second, there must always be a
+drive assigned to A:. Any attempt to violate these rules will be blocked
+by the `ASSIGN` command.
+
+As you see, the name of a slice does not reference the hard disk
+partition containing the slices.  Since there can only be a single
+RomWBW partition containing slices on any disk, the partition is
+determined automatically.
+
+RomWBW does not prevent you from assigning slices
+to drive letters even if the location of the slice does not fit on the
+physical disk.  Any attempt to access a drive letter mapped to a slice
+that does not fit will result in an error such as "no disk" from the
+operating system.
+
+For example, a 64MB CF Card (which is typically a bit smaller
+than 64MB) will only fit 7 slices.  At startup, you will typically see
+8 drive letters assigned to the CF Card.  Attempting to access the
+last drive letter will result in a "no disk" error from the operating
+system.
+
+### Hard Disk Capacity
+
+The exact number of CP/M filesystem slices that will fit on your
+specific physical hard disk can be determined as follows:
+
+- For modern (hd1k) disk layouts, it is 1024KB + (slices * 8192KB). 
+  Or equivalent to say 1MB + (slices * 8MB).
+- For legacy (hd512) disk layouts, it is slices * 8,320KB.
+
+**WARNING**: In this document KB means 1024 bytes and MB means 1048576
+bytes (frequently expressed as KiB and MiB in modern terminology).
+In general, hard disk capacities use KB to mean 1000 bytes and MB
+to mean 1,000,000 bytes.
+
+As an example, A "64MB" CF Card probably has
+less than 62.5MB of actual space (using the RomWBW definition that
+1MB is 1048576 bytes).  Such a drive will not support 8 slices.  It
+will support 7 slices just fine because 
+1024KB + (7 * 8192MB) = 57MB (hd1k) or
+7 * 8,320KB = 58.24MB (hd512)
+
+Although you can use up to 256 slices per physical disk,
+equating to 2GB of storage this large number of slices is rarely used.
+It is recommended that hard disk media used with RomWBW be 1GB or
+greater in capacity.
+This will support the RomWBW Combo Disk Image (see [Combo Hard Disk Image])
+that allows you to use 64 CP/M filesystem slices and a 384KB FAT filesystem.
+
+# Disk Preparation
+
+There are two approaches to preparing disks for use by RomWBW.
+
+- **Manual**: Use RomWBW itself to format empty disks and then transfer
+  files over to the disks.
+- **Images**: Use a modern computer to write a pre-built disk image
+  including files to a disk.
+
+This section of the document describes the manual process of preparing
+empty disks that are ready for use by an operating system. 
+
+Alternatively, you can use the pre-built RomWBW disk images to quickly
+create disk media that already has a large selection of files and
+bootable operating system slices.  Using images to prepare a disk
+is documented in [Disk Images].  You do not need to follow the
+instructions in this section if you want to use disk images.
+
+## Floppy Disk Formatting
+
+Floppy media must be physically formatted before it can be used.  This
+is normally accomplished by using the supplied Floppy Disk Utility `FDU`
+application. This application interacts directly with your hardware
+and therefore you must specify your floppy interface hardware at
+application startup. Additionally, you need to specify the floppy disk drive
 and media format to use for formatting.
 
-Below is a sample session using FDU to format a 1.44M floppy disk in
+Refer to $doc_apps$ for more information on use of the `FDU` command.
+
+Since the physical format of floppy media is the same as that used
+in a standard MS-DOS/Windows computer, you can also format
+floppy disk media in a standard computer.  However there are caveats:
+
+*  The directory format itself will **NOT** be compatible with CP/M OSes.
+   You **WILL** need to use the `CLRDIR` command to reformat the directory area
+   from CP/M. See section [Clearing (Formatting) Drives]
+*  FDU allows you to specify physical sector interleaving (defaults to 2)
+   which will result in faster floppy disk I/O. 
+   Formatting on a modern computer may not optimize this. 
+
+Below is a sample session using `FDU` to format a 1.44M floppy disk in
 the first (primary) floppy disk drive:
 
 ```
-B>fdu
+B>FDU
 
 Floppy Disk Utility (FDU) v5.8, 26-Jul-2021 [HBIOS]
 Copyright (C) 2021, Wayne Warthen, GNU GPL v3
@@ -1330,8 +1719,6 @@ ENTER TRACE LEVEL [00-01] (00):
 === OPTION ===> FORMAT (T)RACK, (D)ISK ===> DISK
 ENTER INTERLEAVE [01-12] (02):
 
-
-
 RESET DRIVE...
 PROGRESS: TRACK=4F HEAD=01 SECTOR=01
 
@@ -1343,464 +1730,285 @@ PROGRESS: TRACK=4F HEAD=01 SECTOR=01
 === OPTION ===> EXIT
 ```
 
-Since the physical format of floppy media is the same as that used
-in a standard MS-DOS/Windows computer, you can also physical format
-floppy media in a modern computer.  However, the directory format
-itself will not be compatible with CP/M OSes.  In this case, you
-can use the `CLRDIR` application supplied with RomWBW to reformat
-the directory area.
-
-Once a floppy disk is formatted, you can read/write files on it
-using any of the RomWBW operating systems.  The specific commands
-will depend on the operating system or application in use -- refer to
-the appropriate OS/application documentation as needed.
-
-**WARNING:** Some of the operating systems provided with RomWBW require
-that a soft-reset be performed when swapping floppy disk media.  For
-example, under CP/M 2.2, you must press control-C at the CP/M prompt
-after inserting a new floppy disk.  The consequences of failing to
-perform the soft-reset vary from unexpected error messages to full
-disk directory corruption.
-
-## Hard Disks
+You can confirm a floppy disk is ready for content by simply running a `DIR`
+command on it.  The `DIR` command should complete without error and
+should list no files.
 
-Under RomWBW, a hard disk is similar to a floppy disk in that it is
-considered a disk unit.  However, RomWBW has multiple features that
-allow its legacy operating systems to take advantage of modern
-mass storage media.
+## Hard Disk Preparation
 
-To start with, the concept of a hard disk in RomWBW applies to any
-storage device that provides at least 8MB of space.  The actual
-media can be a real spinning hard disk, a CompactFlash Card, a
-SD Card, etc.  In this document, the term hard disk will apply
-equally to all of these.
+This section deals with initializing hard disk media entirely from
+your RomWBW system. The following instructions are one way to proceed.
+This does not mean to imply it is the only possible way.  
 
-RomWBW uses Logical Block Addressing (LBA) to interact with all hard
-disks.  The RomWBW operating systems use older Cylinder/Head/Sector
-(CHS) addressing.  To accommodate the operating systems, RomWBW emulates
-CHS addressing.  Specifically, it makes all hard disks look like they
-have 16 sectors and 16 heads.  The number of tracks varies with the size
-of the physical hard disk.
+First you need to understand
 
-It is recommended that hard disk media used with RomWBW be 1GB or
-greater in capacity.  The reasons for this are discussed later, but it
-allows you to use the recommended disk layout for RomWBW that
-accommodates 64 CP/M filesystem slices and a 384KB FAT filesystem.
+*  The disk layout approach (either hd1k or the legacy hd512). 
+   See [Hard Disk Layouts] section if you are not sure. 
+   hd1k should be the preferred layout.
+*  The number of 8MB slices that you want to allocate, preferred is 64 slices.
+   At least 1 slice of 8MB is required
+*  If you want to leave space for a FAT partition. See [FAT Filesystem Preparation]
+*  The total capacity of your drive, to hold the CP/M (and other) partition(s)
 
->>> Although we have not yet discussed how to get content on your disk
->>> units, it is necessary to have a basic understanding of how RomWBW
->>> handles disk devices as background.  The following sections explain how
->>> disk units are managed within the operating systems.  We will
->>> subsequently discuss how to actually setup disk devices with usable
->>> content.
+Then you will need to start by inserting the disk media,
+booting RomWBW, and confirming that the media is being recognized.
+If RomWBW recognizes the media, it will indicate this in the
+boot messages even though the media may not yet been prepared for use.
 
-## Slices
+Then launch either CP/M 2.2 or Z-System from ROM using the
+Boot Loader `C` or `Z` commands respectively.
+You can now use the tools on the ROM disk to prepare your disks.
 
-The vintage operating systems included with RomWBW were produced at a
-time when mass storage devices were quite small. CP/M 2.2 could only
-handle filesystems up to 8MB. In order to achieve compatibility across
-all of the operating systems supported by RomWBW, the hard disk
-filesystem format used is 8MB. This ensures any filesystem will be
-accessible to any of the operating systems.
+Note that you may see the operating system assign disks/slices to
+drives letters even though the disks/slices are not yet initialized.  This is
+normal and does not mean the disks/slices are ready to use.
 
-Since storage devices today are quite large, RomWBW implements a
-mechanism called slicing to allow up to 256 8MB CP/M filesystems on a
-single large storage device.  To say it another way, the media is
-"sliced up" into many 8MB CP/M filesystems.  Each slice is a complete
-CP/M filesystem.  This allows up to 2GB of usable space on
-one media. You can think of slices as a way to refer to any of
-the first 256 8MB chunks of space on a single media.  Each chunk
-is a CP/M filesystem.
-
-Note that slices are **not** the same thing as a hard disk partition.
-In fact, these slices all live inside of a single hard disk partition.
-Normally, a RomWBW hard disk will have one partition (called the
-RomWBW partition) containing 64 slices.  Optionally, there may be
-a second partition which contains a FAT filesystem.  For now, we
-are just talking about the slices within the single RomWBW partition.
+### Partition Setup
 
-Although you can use up to 256 slices per physical disk, this large 
-number of slices is rarely used.  The recommended RomWBW disk layout 
-provides for 64 slices which is more than enough for most use cases.
-
-Of course, the problem is that CP/M-like operating systems have only
-16 drive letters (A:-P:) available. Under the covers, RomWBW allows
-you to use any drive letter to refer to any slice of any media. The
-`ASSIGN` command is used to view or change the current drive letter
-mappings at any time. At startup, the operating system will
-automatically allocate a reasonable number of drive letters to the
-available storage devices. The allocation will depend on the number of
-mass storage devices available at boot. For example, if you have
-only one hard disk type media, you will see that 8 drive letters are
-assigned to the first 8 slices of that media. If you have two large
-storage devices, you will see that each device is allocated 4 drive
-letters.
+To setup a partition you must run the `FDISK80` utility.
+After FDISK80 starts, enter the disk unit number of the new media.
+The disk unit number was assigned at boot See [Device Unit Assignments]
 
-Referring to slices within a storage device is done by appending a
-`:<n>` where \<n\> is the device relative slice number from 0-255. 
-For example, if you have an IDE device, it will show up as IDE0: in the 
-boot messages meaning the first IDE device. To refer to the fourth slice
-of IDE0, you would type "IDE0:3". Here are some examples:
+Refer to $doc_apps$ for more information on use of the `FDISK80` utility. 
 
-|          |                              |
-|----------|------------------------------|
-| `IDE0:0` | First slice of disk in IDE0  |
-| `IDE0:`  | First slice of disk in IDE0  |
-| `IDE0:3` | Fourth slice of disk in IDE0 |
+If you want to use the legacy hd512 layout skip down to the [Legacy (hd512)] section
 
-So, if you wanted to use drive letter L: to refer to the fourth slice of
-IDE0, you could use the command `ASSIGN L:=IDE0:3`. There are a couple 
-of rules to be aware of when assigning drive letters. First, you may 
-only refer to a specific device/slice with one drive letter at a time. 
-Said another way, you cannot have multiple drive letters referring to a 
-the same device/slice at the same time. Second, there must always be a 
-drive assigned to A:. Any attempt to violate these rules will be blocked
-by the `ASSIGN` command.
+#### Modern (hd1k)
 
-As you see, the name of a slice does not reference the hard disk 
-partition containing the slices.  Since there can only be a single 
-RomWBW partition containing slices on any disk, the partition is 
-determined automatically.
+At this point, use the `I` command to initialize (reset)
+the partition table to an empty state.
 
-In case this wasn't already clear, you **cannot** refer directly
-to slices using CP/M.  CP/M only understands drive letters, so
-to access a given slice, you must assign a drive letter to it first.
+You must create a partition for the RomWBW CP/M slices. 
+Then create a partition using the `N` command. Importantly:
 
-While it may be obvious, you cannot use slices on any media less than 
-8MB in size. Specifically, you cannot slice RAM disks, ROM disks, floppy
- disks, etc.  All of these are considered to have a single slice (slice 
-0) and any attempt to ASSIGN a drive letter to a slice beyond that will 
-fail and produce an error message.
+*  The partition number should typically be `1` the first partition
+*  The partition can be placed anywhere you want, 
+   The typical location for the RomWBW partition is at 1MB. 
+*  The partition size should be the total size of all the slices you require, 
+   and must be at least 8MB in size, in increments of 8MB makes sense.
 
-It is very important to understand that RomWBW slices are not
-individually created or allocated on your hard disk.  RomWBW uses a
-single, large chunk of space (partition) on your hard disk to contain
-the slices. You should think of slices as just an index into a
-sequential set of 8MB areas that exist in this large chunk of space.
-The next section will go into more detail on how slices are located on
-your hard disk.
-
-Although you do not need to allocate slices individually, you do need to
-initialize each slice for CP/M to use it.  This is somewhat analogous
-to doing a FORMAT operation on other systems.  With RomWBW you use the
-`CLRDIR` command to do this. This command is merely "clearing out" the
-directory space of the slice referred to by a drive letter and setting
-up the new empty directory.  Since `CLRDIR` works on drive letters, make
-absolutely sure you know what media and slice are assigned to that
-drive letter before using `CLRDIR` because CLRDIR will wipe out any
-pre-existing contents of the slice.
+You **must** then set the type of partition to `2E` using the `T` command.
+The `P` command can be used to display the partition before it is written
+Finally the partition can be written to disk using the `W` write command.
 
-**WARNING**: Earlier versions of the `CLRDIR` application does not 
-appear to check for disk errors when it runs.  If you attempt to run 
-`CLRDIR` on a drive that is mapped to a slice that does not actually fit
-on the physical disk, it may behave erratically.
+**WARNING**: Modifying the partition table of existing media will
+make any data on the media inaccessible.
 
-Here is an example of using `CLRDIR`.  In this example, the `ASSIGN`
-command is used to show the current drive letter assignments.  Then
-the `CLRDIR` command is used to initialize the directory of drive 'G'
-which is slice 2 of hard disk device IDE0 ("IDE0:2").
+Below is an example of creating a RomWBW
+partition following these guidelines.
 
 ```
-B>assign
-
-   A:=MD0:0
-   B:=MD1:0
-   C:=FD0:0
-   D:=FD1:0
-   E:=IDE0:0
-   F:=IDE0:1
-   G:=IDE0:2
-   H:=IDE0:3
-
-B>clrdir G:
-CLRDIR Version 1.2B May 2024 by Max Scane
+FDISK80 for RomWBW, UNA, Mini-M68k, KISS-68030, SBC-188  ----
+       Version 1.1-22 created 7-May-2020
+                 (Running under RomWBW HBIOS)
 
-Warning - this utility will overwrite the directory sectors of Drive: G
-Type CAPITAL Y to proceed, any key other key to exit. Y
-Directory cleared.
-B>
+HBIOS unit number [0..11]: 4
+Capacity of disk 4:  (  4G)  7813120      Geom 77381010
+Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
+ 1             00       *** empty ***
+ 2             00       *** empty ***
+ 3             00       *** empty ***
+ 4             00       *** empty ***
+>>i
+>>n
+New partition number: 1
+Starting Cylinder (default 0): 1Mb
+Ending Cylinder (or Size= "+nnn"): +512Mb
+>>t
+Change type of partition number: 1
+New type (in hex), "L" lists types: 2e
+>>p
+Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
+ 1    RomWBW   2e      8:0:1  1023:15:16        2048    1048576  512M
+ 2             00       *** empty ***
+ 3             00       *** empty ***
+ 4             00       *** empty ***
+>>w
+Do you really want to write to disk? [N/y]: y
+Okay
+FDISK exit.
 ```
 
-## Hard Disk Layouts
+At this point, it is best to restart your system to make sure that
+the operating system is aware of the partition table updates.  Start
+CP/M 2.2 or Z-System from ROM again.
 
-As previously discussed, when RomWBW uses a hard disk, it utilizes a
-chunk of space for a sequential series of slices that contain the
-actual CP/M filesystems referred to by drive letters.
+#### Legacy (hd512)
 
-Originally, RomWBW always used the very start of the hard disk media
-for the location of the slices.  In this layout, slice 0 referred to
-the first chunk of ~8MB on the disk, slice 1 referred to the second
-chunk of ~8MB on the disk, and so on.  The number of slices is limited
-to the size of the disk media -- if you attempted to read/write to a
-slice that would exceed the disk size, you would see I/O errors.  This
-is considered the "legacy" disk layout for RomWBW.
+At this point, use the `I` command to initialize (reset) 
+the partition table to an empty state.
 
-Starting with v3.2, RomWBW has been enhanced to support the concept of
-partitioning.  The partition mechanism is entirely compliant with Master
-Boot Record (MBR) Partition Tables introduced by IBM for the PC.  The
-Wikipedia article on the
-[Master Boot Record](https://en.wikipedia.org/wiki/Master_boot_record)
-is excellent if you are not familiar with them.  This is considered the
-"modern" disk layout for RomWBW.  RomWBW uses the partition type id
-0x2E.  This partition type id does not equate to any existing well-known
-partition types -- it was chosen because it is not generally used.
-RomWBW does not support extended partitions -- only a single
-primary partition can be used.
+To use the hd512 layout, use `W` to write the empty table to the disk 
+and exit.  Remember that the lack of a partition for RomWBW implies the 
+legacy (hd512) layout.
 
-Both the legacy and modern disk layouts continue to be fully supported
-by RomWBW.  There are no plans to deprecate the legacy layout.  In fact,
-the legacy format takes steps to allow a partition table to still be
-used for other types of filesystems such as DOS/FAT.  It just does not
-use a partition table entry to determine the start of the RomWBW slices.
+At this point, it is best to restart your system to make sure that
+the operating system is aware of the partition table updates.  Start
+CP/M 2.2 or Z-System from ROM again.
 
-There is one more difference between the legacy and modern disk layouts
-that should be highlighted.  The CP/M filesystem in the slices of
-the legacy disk layout contain 512 directory entries.  The modern disk
-layout filesystems provide 1024 directory entries.  In fact, you will
-subsequently see that the prefixes "hd512" and "hd1k" are used to
-identify disk images appropriate for the legacy and modern format.
-These prefixes were chosen specifically to highlight the number of
-directory entries supported.
-
-You **cannot** mix disk layouts on a single disk device.  To say it
-another way, the existence of a partition table entry for RomWBW on
-a hard disk makes it behave in the modern mode.  The lack of a RomWBW
-partition table entry will cause legacy behavior.  Adding a partition
-table entry on an existing legacy RomWBW hard disk will cause the
-existing data to be unavailable and/or corrupted.  Likewise, removing
-the RomWBW partition entry from a modern hard disk layout will cause
-the same problems.  It is perfectly fine for one system to have
-multiple hard disks with different layouts -- each physical disk
-device is handled separately.
+#### FAT Partition
 
-If you are setting up a new disk, the modern (hd1k) layout is
-recommended for the following reasons:
+At this point you may want to consider creating a FAT partition
+Please see the section [FAT Filesystem Preparation] for detils on how
+to setup the FAT partition.
 
-* Larger number of directory entries per filesystem
-* Simplifies creation of coresident FAT filesystem
-* Reduces chances of data corruption
+### Slice Initialization
 
-### Checking Hard Disk Layout
+You need to initialize each slice for CP/M to use it. 
+This is somewhat analogous to doing a FORMAT operation on other systems,
+and is done using the `CLRDIR` command. 
 
-If you are not sure which hard disk layout was used for your existing
-media, you can use the OSes command to display the number of directory
-entries for a drive letter on the corresponding hard disk.  For example,
-the `STAT` command is used in CP/M 2.2 to determine this.  This
-command displays the number of directory entries on a filesystem.  If
-it indicates 512, your disk layout is legacy (hd512).  If it indicates
-1024, your disk layout is modern (hd1k).
+This is covered in the section [Clearing (Formatting) Drives]
 
-Here is an example of checking the disk layout.  We want to check the
-CompactFlash Card inserted in IDE interface 0.  We start the system
-and boot to Z-System in ROM by using the 'Z' command at the Boot Loader.
-As Z-System starts, we see the following disk assignments:
+**WARNING**: Earlier versions of the `CLRDIR` application do not
+appear to check for disk errors when it runs.  If you attempt to run
+`CLRDIR` on a drive that is mapped to a slice that does not actually fit
+on the physical disk, it may behave erratically.
 
-```
-Boot [H=Help]: c
+Assuming you want to use additional slices, you should initialize them
+using the same process.  You may need to reassign drive letters to
+access some slices that are beyond the ones automatically assigned.
+You can use the `ASSIGN` command to handle this.
 
-Loading CP/M 2.2...
+## Post Disk Preparation
 
-CBIOS v3.1.1-pre.194 [WBW]
+Once a disk (either floppy or hard disk) has been initialised and 
+formattted you may optionally;
+* Make the disk bootable
+* Copy system (or other) files to the disk
 
-Configuring Drives...
+### Making a Disk Bootable
 
-        A:=MD0:0
-        B:=MD1:0
-        C:=FD0:0
-        D:=FD1:0
-        E:=IDE0:0
-        F:=IDE0:1
-        G:=IDE0:2
-        H:=IDE0:3
-        I:=PRPSD0:0
-        J:=PRPSD0:1
-        K:=PRPSD0:2
-        L:=PRPSD0:3
+To make a disk bootable you will need to follow the specific instructions
+in [Operating Systems], as each operating system will be different.
 
-        1081 Disk Buffer Bytes Free
+Generally you will need to use `SYSCOPY` to setup the system track(s) 
+of the disk.As an example, If you wanted to setup C: as a bootable 
+Z-System disk you would use:
 
-CP/M-80 v2.2, 54.0K TPA
 ```
+B>SYSCOPY C:=B:ZSYS.SYS
 
-You can see that the IDE0 interface (which contains the CF Card) has
-been assigned to drive letters E: to H:.  We can use the STAT command
-on any of these drive letters.  So, for example:
-
-```
-B>stat e:dsk:
+SYSCOPY v2.0 for RomWBW CP/M, 17-Feb-2020 (CP/M 2 Mode)
+Copyright 2020, Wayne Warthen, GNU GPL v3
 
-    E: Drive Characteristics
-65408: 128 Byte Record Capacity
- 8176: Kilobyte Drive  Capacity
- 1024: 32  Byte Directory Entries
-    0: Checked  Directory Entries
-  256: Records/ Extent
-   32: Records/ Block
-   64: Sectors/ Track
-    2: Reserved Tracks
+Transfer system image from B:ZSYS.SYS to C: (Y/N)? Y
+Reading image... Writing image... Done
 ```
 
-It is critical that you include "dsk:" after the drive letter in the
-`STAT` command line.  The important line to look at is labelled "32 Byte
-Directory Entries".  In this case, the value is 1024 which implies that
-this drive is located on a modern (hd1k) disk layout.  If the value
-was 512, it would indicate a legacy (hd512) disk layout.
-
-## Hard Disk Capacity
-
-Although RomWBW can support many CP/M filesystem slices on a single
-hard disk, you are still constrained by the physical capacity of the
-actual hard disk.  RomWBW does not prevent you from assigning slices
-to drive letters even if the location of the slice does not fit on the
-physical disk.  Any attempt to access a drive letter mapped to a slice
-that does not fit will result in an error such as "no disk" from the
-operating system.
-
-The exact number of CP/M filesystem slices that will fit on your 
-specific physical hard disk can be determined as follows:
-
-- For hd512 disk layouts, it is slices * 8,320KB.
-- For hd1k disk layouts, it is 1024KB + (slices * 8192KB).  Since
-  1024KB is exactly 1MB, it is equivalent to say 1MB + (slices * 8MB).
-
-**WARNING**: In this document KB means 1024 bytes and MB means 1048576 
-bytes (frequently expressed as KiB and MiB in modern terminology).
-In general, hard disk capacities use KB to mean 1000 bytes and MB
-to mean 1,000,000 bytes.
-
-As an example, hardware distributors frequently supply a "64MB"
-CF Card with a RomWBW system.  Such a hard disk probably has
-less than 62.5MB of actual space (using the RomWBW definition that
-1MB is 1048576 bytes).  Such a drive will not support 8 slices.  It
-will support 7 slices just fine because 7 * 8,320KB = 58.24MB (hd512)
-or 1024KB + (7 * 8192MB) = 57MB (hd1k).
+Once this process succeeds, you will be able to boot directly to the
+disk slice from the boot loader prompt. See the instructions in
+[Starting Operating Systems from Disk] for details on this.
 
-The cost of high capacity CF/SD/USB Media has become very reasonable.
-I highly recommend upgrading to 1GB or greater media.  This size will
-support all features of the RomWBW Combo Disk Image with 64 slices
-and a 384MB FAT filesystem (see [Combo Hard Disk Image]).
+### Copying System Files
 
-# Disk Content Preparation
+As well as making the disk bootable, you may need to transfer other
+system and application files to your disks.
+Refer to [Transferring Files] for more information on getting
+files onto your disks.
 
-With some understanding of how RomWBW presents disk space to the
-operating systems, we need to go over the options for actually setting
-up your disk(s) with content.
+# Disk Images
 
 Since it would be quite a bit of work to transfer over all the files you
-might want initially to your disk(s), RomWBW provides a much easier way
-to get initial contents on your disks.  You can use your modern
-Windows, Linux, or Mac computer to copy a disk image onto the disk
-media, then just move the media over to your RomWBW computer. RomWBW
-comes with a variety of disk images that are ready to use and have a
-much more complete set of files than you will find on the ROM disk. This
-process is covered below under [Disk Images].
-
-If you do not want to start with pre-built disk images, you can
-alternatively initialize the media in-place using your RomWBW system.
-Essentially, this means you are creating a set of blank directories on
-your disk so that files can be saved there.  This process is described
-below under Disk Initialization. In this scenario, you will need to
-subsequently copy any files you want to use onto the newly initialized
-disk (see [Transferring Files]).
-
-You will notice that in the following instructions there is no mention 
-of specific hardware.  Because the RomWBW firmware provides a hardware 
-abstraction layer, all disk images will work on all hardware variations.
-Yes, this means you can remove disk media from one RomWBW system and 
-put it in a different RomWBW system. The only constraint is that the 
-applications on the disk media must be up to date with the firmware on 
-the system being used.
+might want initially to your disk(s), It is generally easier to use 
+these disk images than transferring your files over individually. RomWBW
+comes with a variety of ready to use disk images.
 
-## Disk Images
-
-As mentioned previously, RomWBW includes a variety of disk images
-that contain a full set of applications for the operating systems
-supported. It is generally easier to use these disk images than
-transferring your files over individually. You use your modern
-computer (Windows, Linux, MacOS) to write the disk image onto the
-disk media, then just move the media over to your system.
+You can use your modern
+Windows, Linux, or Mac computer to copy a disk image onto the disk
+media, then just move the media over to your RomWBW computer.
 
-The disk image files are found in the Binary directory of the 
-distribution. Floppy disk images are prefixed with "fd_" and hard disk 
-images are prefixed with either "hd512_" or "hd1k_" depending on the 
-hard disk layout they are for.
+The disk image files are found in the Binary directory of the
+distribution. 
 
-Each disk image has the complete set of normal applications and tools 
+Each disk image has the complete set of normal applications and tools
 distributed with the associated operating system or application suite.
 The following table shows the disk images available.
 
-| **Disk Image**  | **Description**                        | **Boot** |
-|-----------------|----------------------------------------|----------|
-| xxx_cpm22.img   | DRI CP/M 2.2 Operating System          | Yes      |
-| xxx_zsdos.img   | ZCPR-DJ & ZSDOS 1.1 Operating System   | Yes      |
-| xxx_nzcom.img   | NZCOM ZCPR 3.4 Operating System        | Yes      |
-| xxx_cpm3.img    | DRI CP/M 3 Operating System            | Yes      |
-| xxx_zpm3.img    | ZPM3 Operating System                  | Yes      |
-| xxx_qpm.img     | QPM Operating System                   | Yes      |
-| xxx_dos65.img   | DOS/65 Operating System                | Yes      |
-| xxx_ws4.img     | WordStar v4 & ZDE Applications         | No       |
+| **Disk Image**    | **Description**                      | **Boot** |
+|-------------------|--------------------------------------|----------|
+| xxx_aztec.img     | Aztec C Compiler                     | No       |
+| xxx_bascomp.img   | Microsoft Basic-80 Compiler          | No       |
+| xxx_blank.img     | _empty image_                        | No       |
+| xxx_cowgol.img    | Cowgol 2.0 Compiler                  | No       |
+| xxx_cpm22.img     | DRI CP/M 2.2 Operating System        | Yes      |
+| xxx_cpm3.img      | DRI CP/M 3 Operating System          | Yes      |
+| xxx_dos65.img     | DOS/65 Operating System              | Yes      |
+| xxx_fortran.img   | Microsoft Fortran-80 Compiler        | No       |
+| xxx_games.img     | Games Disk for CP/M                  | No       |
+| xxx_hitechc.img   | HI-TECH Z80 CP/M C compiler          | No       |
+| xxx_msxroms1.img  | MSX ROMs Disk 1                      | No       |
+| xxx_msxroms2.img  | MSX ROMs Disk 2                      | No       |
+| xxx_nzcom.img     | NZCOM ZCPR 3.4 Operating System      | Yes      |
+| xxx_qpm.img       | QPM Operating System                 | Yes      |
+| xxx_tpascal.img   | Borland Turbo Pascal Compiler        | No       |
+| xxx_ws4.img       | WordStar v4 & ZDE Applications       | No       |
+| xxx_z80asm.img    | Relocating macro assembler for CP/M  | No       |
+| xxx_zpm3.img      | ZPM3 Operating System                | Yes      |
+| xxx_zsdos.img     | ZCPR-DJ & ZSDOS 1.1 Operating System | Yes      |
 
 You will find 3 sets of these .img files in the distribution.  The
-"xxx" portion of the filename will be "fd_" for a floppy image,
-"hd512" for a legacy layout hard disk image, and "hd1K" for a modern
-layout hard disk image.
+"xxx" portion of the filename will be:
+
+*  "fd_" for a floppy image.
+*  "hd1k_" for a modern layout hard disk image.
+*  "hd512_" for a legacy layout hard disk image.
 
 In the case of xxx_dos65.img, only an hd512 variant is provided.  This
 is a constraint of the DOS65 distribution.
 
-There is also an image file called "psys.img" which contains a bootable 
+There is also an image file called "psys.img" which contains a bootable
 p-System hard disk image.  It contains 6 p-System filesystem slices, but
 these are not interoperable with the CP/M slices described above.  This
-file is discussed separately under p-System in the [Operating Systems] 
+file is discussed separately under [UCSD p-System] in Operating Systems
 section.
 
-### Floppy Disk Images
+## Floppy Disk Images
 
 The floppy disk images are all intended to be used with 3.5" high-density,
 double-sided 1.44 MB floppy disk media.  This is ideal for the default
-floppy drive support included in RomWBW standard ROMs.
+floppy disk drive support included in RomWBW standard ROMs.
 
-For floppy disks, the .img file is written directly to the floppy media 
-as is.  The floppy .img files are 1.44 MB which is the exact size of a 
+For floppy disks, the .img file is written directly to the floppy media
+as is.  The floppy .img files are 1.44 MB which is the exact size of a
 single 3.5" high density floppy disk.  You will need a floppy disk
 drive of the same type connected to your modern computer to write this
-image.  Although modern computers do not come equipped with a floppy
+image.  Although modern computers do not come equipped with a floppy disk
 drive, you can still find USB floppy drives that work well for this.
 
 The floppy disk must be physically formatted **before** writing the
-image onto it.  You can do this with RomWBW using FDU as described
-in the [Floppy Disks] section of this document.  You can also format
-the floppy using your modern computer, but using FDU on RomWBW is
-preferable because it will allow you to use optimal physical sector
-interleaving.  FDU defaults to a sector interleave of 2 which will
-result in faster floppy disk I/O.  Other interleaves will work, but
-will be slower.
-
-RomWBW includes a Windows application called RawWriteWin in the Tools 
-directory of the distribution.  This simple application will let you 
-choose a file and write it to an attached floppy drive. For Linux/MacOS,
-I think you can use the dd command (but I have not actually tried 
-this).  It is probably obvious, but writing an image to a floppy disk 
+image onto it.  You can do this with RomWBW using `FDU` as described
+in the [Floppy Disk Formatting] section of this document.
+While you can also format the floppy using your modern computer, 
+using `FDU` is preferable.
+
+RomWBW includes a Windows application called RawWriteWin in the Tools
+directory of the distribution.  This simple application will let you
+choose a file and write it to an attached floppy disk drive. For Linux/MacOS,
+I think you can use the dd command (but I have not actually tried
+this).  It is probably obvious, but writing an image to a floppy disk
 will overwrite and destroy all previous contents.
 
 Once the image has been written to the floppy disk, you can insert
 the floppy disk in your RomWBW floppy disk and read/write files
 on it according to the specific operating system instructions.  If the
 image is bootable, then you will be able to boot from it by entering
-the floppy drive's corresponding unit number at the RomWBW Boot Loader
+the floppy disk drive's corresponding unit number at the RomWBW Boot Loader
 command prompt.
 
-### Hard Disk Images
+## Hard Disk Images
 
 Keeping in mind that a RomWBW hard disk (including CF/SD/USB devices)
 allows you to have multiple slices (CP/M filesystems), there are a
-couple ways to image hard disk media.  The easiest approach is to 
+couple ways to image hard disk media. The easiest approach is to 
 use the "combo" disk image.  This image is already prepared
 with 6 slices containing 5 ready-to-run OSes and a slice with
-the WordStar application files.  Alternatively, you can create your own
+the WordStar application files.  
+
+Alternatively, you can create your own
 hard disk image with the specific slice contents you choose.
 
-#### Standard Hard Disk Physical Layout
+### Standard Hard Disk Physical Layout
 
 As previously described in [Hard Disk Layouts], the exact placement of
 slices and optional FAT partition will vary depending on which disk
@@ -1881,80 +2089,101 @@ of the individual filesystem images (slices) already concatenated
 together. The combo disk image contains the following 6 slices in the 
 positions indicated:
 
-| **Slice** | **Description**                                                  |
-|-----------|------------------------------------------------------------------|
-| Slice 0   | DRI CP/M 2.2 Operating System                                    |
-| Slice 1   | ZCPR-DJ & ZSDOS 1.1 Operating System                             |
-| Slice 2   | NZCOM ZCPR 3.4 Operating System                                  |
-| Slice 3   | DRI CP/M 3 Operating System                                      |
-| Slice 4   | ZPM3 Operating System                                            |
-| Slice 5   | WordStar v4 & ZDE Applications                                   |
-
-You will notice that there are actually 2 combo disk images in the 
+| **Slice**  | **Description**                         |
+|------------|-----------------------------------------|
+| Slice 0    | DRI CP/M 2.2 Operating System           |
+| Slice 1    | ZCPR-DJ & ZSDOS 1.1 Operating System    |
+| Slice 2    | NZCOM ZCPR 3.4 Operating System         |
+| Slice 3    | DRI CP/M 3 Operating System             |
+| Slice 4    | ZPM3 Operating System                   |
+| Slice 5    | WordStar v4 & ZDE Applications          |
+| Slice 6-63 | _blank unformatted_                     |
+
+There are actually 2 primary combo disk images in the 
 distribution.  One for an hd512 disk layout (hd512_combo.img) and one 
 for an hd1k disk layout (hd1k_combo.img). Simply use the image file that
 corresponds to your desired hard disk layout.  Review the information
 in [Hard Disk Layouts] if you need more information of the disk layout
 options.
 
-Although the combo disk images contain only 6 slices of content, they
-reserve space to store 64 CP/M filesystem slices as well as a
-single 384MB FAT filesystem.  Keep in mind that the slices beyond the
-first 6 are not yet initialized.  You will need to use the `CLRDIR`
-application to initialize them before their first use.  Likewise, the
-pre-allocated FAT partition must still be formatted using `FAT FORMAT`
-in order to actually use it (see [FAT Filesystem Preparation]).
-Alternatively, the FAT partition can be formatted on a modern computer.
+> **Note**: Apart from the hd512 and hd1k combo disk images (mentioned above)
+> there are actaully a number of other `hd1k_*_combo.img` files. These 
+> additional combo files are platform (generally romless) specific, 
+> and should be ignored unless you are on one of these platforms.
+> If you are on one of these platforms you must use the correct combo file
+
+The combo disk image actaully only contains the initial partition table, 
+and the first 6 slices (Slice 0 to 5), this is approximately 49MB in size. 
+While the partition table reserves space to store 64 CP/M filesystem 
+slices as well as a single 384MB FAT filesystem, these area remain
+empty, and must be manuall initialized manually.
+
+#### Combo Image Capacity
 
 The combo disk image layout was designed to fit well on a 1GB hard disk.
 The 64 CP/M slices (approximately 512MB) and 384MB FAT filesystem all 
 fit well within a 1GB hard disk.  This size choice was a bit arbitrary, 
 but based on the idea that 1GB CF/SD/USB Media is easy and cheap to 
-acquire.  It is fine if your hard disk is smaller than 1GB.  It just 
-means that it will not be possible to use the pre-allocated FAT 
-filesystem partition and any CP/M filesystem slices that don't fit.  You
-will get "no disk" errors if you attempt to access a slice past the 
-end of the physical hard disk.
+acquire.  
 
-**WARNING**: Your hard disk may be too small to contain the full 64
-CP/M filesystem slices.  The true number of CP/M filesystem slices that
+It is fine if your hard disk is smaller than 1GB.  It just 
+means that it will not be possible to use the pre-allocated FAT 
+filesystem partition and any CP/M filesystem slices that don't fit. 
+The true number of CP/M filesystem slices that
 will fit on your specific physical hard disk can be calculated as
 described in [Hard Disk Capacity].
 
-For RomWBW systems with a single hard disk (typical), you will notice 
-that the OS will pre-allocate 8 drive letters to the hard disk.  If the 
-combo disk image is being used, only the first 6 drive letters 
-(typically C: - H:) will have any content because the combo disk image 
-only provides 6 slices. The subsequent drives (typically I: - J:) will 
-have no content and will not be pre-initialized.  If you want to use any
-slices beyond the first 6 on the hard disk, then you must initialize 
-them using `CLRDIR` first.
+If you attempt to access a slice past the end of the 
+physical hard disk you will get "no disk" errors.
+You should calculate the maximum number of slices your hard disk
+will support and do not exceed this number.
+
+#### Combo Image Advice
 
 A great way to maintain your own data on a hard disk is to put this
 data in slices beyond the first 6.  By doing so, you can always
-"re-image" your drive with the combo image without overlaying the data
+"re-image" your drive media with the combo image without overlaying the data
 stored in the slices beyond the first 6.  Just be very careful to use
 the same combo image layout (hd512 or hd1k) as you used originally.
-Also remember to calculate the maximum number of slices your hard disk
-will support and do not exceed this number.
-
-**WARNING**: The combo disk image includes a partition table at the 
-start of the image.  If you re-image drive with the combo image, you 
-will overwrite this partition table.  This is fine as long as you don't 
-make any changes to the partition table.  If you manually customize the 
-partition table (using `FDISK80` or other partition management 
-software), those changes will be lost if you re-image your disk with a 
-new combo disk image.
 
-#### Custom Hard Disk Image
-
-If you want to use specific slices in a specific order, you can easily
-generate a custom hard disk image file.
+### Custom Hard Disk Image
 
 For hard disks, each .img file represents a single slice (CP/M 
 filesystem).  Since a hard disk can contain many slices, you can just 
 concatenate the slices (.img files) together to create your desired hard
-disk image.  For example, if you want to create a hard disk image that 
+disk image.  
+
+If you look in the Binary directory of the distribution, you will see
+that there are more disk (slice) images than the 6 that are included
+in the "combo" disk images.  These images are identified by looking
+for the files that start with hd1k_ or hd512_.
+
+#### Adding Slices to Combo Image
+
+You can add slices to the combo disk images simply by tacking
+slices onto the end.  For example, if you want to add a slice
+containing the MSX ROMs to the end of the combo image, you could
+use one of the following command lines depending on your operating
+system:
+
+Windows:
+
+`COPY /B hd1k_combo.img + hd1k_msxroms.img my_hd.img` 
+
+Linus/MaxOS:
+
+`cat hd1k_combo.img hd1k_msxroms.img >my_hd.img`
+
+Note that you **must** be sure to use either the hd1k_ or hd512_
+prefixed files together.  You cannot mix them.
+
+#### Creating a new Custom Image
+
+If you want to create a completely custom hard disk image that is not
+based on the existing combo image, you can generate a disk image entirely
+from scratch using whatever slices you want in whatever order you like.
+
+For example, if you want to create a hard disk image that 
 has slices for CP/M 2.2, CP/M 3, and WordStar in the hd512 format, you 
 would use the command line of your modern computer to create the final 
 image:
@@ -1979,6 +2208,12 @@ Linux/MacOS:
 
 `cat hd1k_prefix.dat hd1k_cpm22.img hd1k_cpm3.img hd1k_ws >hd.img`
 
+> **Note**: Apart from the hd1k_prefix.dat file (mentioned above)
+> there are actaully a number of other `hd1k_*_prefix.dat` files. These
+> additional prefix files are platform (generally romless) specific,
+> and should be ignored unless you are on one of these platforms.
+> If you are on one of these platforms you must use the correct prefix file
+
 In all of the examples above, the resulting file (hd.img) would now be 
 written to your hard disk media and would be ready to use in a RomWBW 
 system.
@@ -1986,35 +2221,26 @@ system.
 If you wish to further customize or create new disk image definitions,
 please refer to the ReadMe.txt file in the Source/Images directory.
 
-#### Writing Hard Disk Images
+### Writing Hard Disk Images
 
 Once you have chosen a combo hard disk image file or prepared your own 
 custom hard disk image file, it will need to be written to the media 
-using your modern computer.  Note that you **do not** run `CLRDIR` or 
-`SYSCOPY` on the slices that contain the data.  When using this method, 
+using your modern computer.  When using this method, 
 the disk will be partitioned and setup with 1 or more slices containing 
-ready-to-run bootable operating systems.  You **do** need to run
-`CLRDIR` and optionally `SYSCOPY` on slices that are not part of the
-image (slices beyond the ones included with the image).
+ready-to-run bootable operating systems. 
 
 To write a hard disk image file onto your actual media (actual hard disk
 or CF/SD/USB Media), you need to use an image writing utility on your 
 modern computer. Your modern computer will need to have an appropriate 
-interface or slot that accepts the media. To actually copy the image, 
-you can use the `dd` command on Linux or MacOS. On Windows, in the 
-"Tools" directory of the distribution, there is an application called 
-Win32DiskImager. In all cases, the image file should be written to the 
-media starting at the very first block or sector of the media.
+interface or slot that accepts the media. To actually copy the image 
 
-You are not limited to the number of slices that are contained in the 
-image that you write to your hard disk media.  You can use additional 
-slices as long your media has room for them.  However, writing the disk 
-image will not initialize the additional slices.  If these additional 
-slices were previously initialized, they will not be corrupted when you 
-write the new image and will still contain their previous contents.  If 
-the additional slices were not previously initialized, you can use 
-`CLRDIR` to do so and optionally `SYSCOPY` if you want them to be 
-bootable.
+* On Linux or MacOS , you can use the `dd` command. 
+* On Windows, in the "Tools" directory of the distribution, there is
+  an application called Win32DiskImager. 
+ 
+In all cases, the image file should be written to the 
+media starting at the very first block or sector of the media.
+This is the default behaviour on all software.
 
 To be entirely clear, writing a disk image file to your hard disk media
 will overwrite an pre-existing partition table and the number of slices
@@ -2024,180 +2250,120 @@ slices as a place to maintain your personal data because these slices
 will survive re-imaging of the media.  If you setup a FAT partition
 on your media, it will also survive the imaging process.
 
-**WARNING**: In order for your additional slices and/or FAT partition to
-survive re-imaging, you **must** follow these rules:
-
-* Do not modify the partition table of the media using FDISK80 or any
-  other partition management tools.
-* Ensure that your hard disk image file uses the same disk layout
-  approach (hd512 or hd1k) as previously used on the media.
+#### Media Usage and Initialization
 
 Once you have copied the image onto the hard disk media, you can
 move the media over to your RomWBW system.  You can then boot to the
-operating system slices by specifying "<unitnum>.<slicenum>" at the
+operating system slices by specifying (***\<diskunit\>.\<slice\>***) at the
 RomWBW Boot Loader command prompt.
+See the section [Starting Operating Systems from Disk] for further details
+
+You are not limited to the number of slices that are contained in the
+image that you write to your hard disk media.  You can use additional
+slices as long your media has room for them.
+
+However, writing the disk image will not initialize the additional slices.
+You will need to use the `CLRDIR` application to initialize
+any un-initialized slice before its first use, 
+and and optionally `SYSCOPY` if you want th slice to be bootable.
+If you use the combo image this applies to slices 6 thru 63.
+The procedure for this is documented in the
+[Clearing (Formatting) Drives] section.
+
+Likewise, the pre-allocated FAT partition must still be formatted using 
+`FAT FORMAT` in order to actually use it (see [FAT Filesystem Preparation]).
+Alternatively, the FAT partition can be formatted on a modern computer.
 
-## In-situ Disk Preparation
-
-If you do not wish to use the pre-built disk images, it is entirely
-possible to setup your disks manually and transfer contents to them.
-
-In this scenario, you will initialize the disk media entirely from
-your RomWBW system.  So, you need to start by inserting the disk
-media, booting RomWBW, and confirming that the media is being
-recognized.  If RomWBW recognizes the media, it will indicate this
-in the boot messages even though the media has not yet been prepared
-for use.
-
-The following instructions are one way to proceed.  This does not mean
-to imply it is the only possible way.  Also, note that RAM/ROM disk
-media is prepared automatically.  ROM disks are part of the ROM image
-and RAM disks are initialized when an operating system is started.
+#### Re-Imaging Existing Media
 
-Start by booting RomWBW and launching either CP/M 2.2 or Z-System
-from ROM using the Boot Loader 'C' or 'Z' commands respectively.  You
-can now use the tools on the ROM disk to prepare your disks.  Note
-that you will see the operating system assign disks/slices to
-drives even though the disks/slices are not yet initialized.  This is
-normal and does not mean the disks/slices are ready to use.
+In order for your additional slices and/or FAT partition to
+survive re-imaging, you **must** follow these rules:
 
-Preparation of floppy disk media is very simple.  The floppy disk must 
-be physically formatted as discussed in [Floppy Disks] previously using 
-`FDU`. If a floppy is already physically formatted, you can wipe out 
-it's contents (make it empty again) by running `CLRDIR` on it.  You can 
-confirm a floppy disk is ready for content by simply running a `DIR` 
-command on it.  The `DIR` command should complete without error and 
-should list no files.  At this point, you can  proceed to copy files to 
-the floppy disk and (optionally) make the floppy bootable using 
-`SYSCOPY`.
+* Do not modify the partition table of the media using FDISK80 or any
+  other partition management tools.
+* Ensure that your hard disk image file uses the same disk layout
+  approach (hd512 or hd1k) as previously used on the media.
 
-The rest of this section will cover preparation of hard disk media.  To
-start, it is critical that you decide which disk layout approach to use
-(either hd512 or hd1k).  Review the [Hard Disk Layouts] section if you
-are not sure.
+### Writing Hard Disk Slices
 
-#### Partition Setup
+This section covers techniques to copy partial images onto pre-existing media,
+in effect performing a selective slice copy. These techniques currently **only** apply to 
+hd1k formatted media, which has a convienient 1MB size metric. 
+However adapting to hd512 is possible.
 
-**WARNING**: Modifying the partition table of existing media will
-make the data on the media inaccessible.
-
-Since the disk layout is determined by the existence (or lack) of
-a RomWBW partition, you must start by running `FDISK80`.  When FDISK80
-starts, enter the disk unit number of the new media.  At this point,
-use the 'I' command to initialize (reset) the partition table to an
-empty state.  If you are going to use the hd512 layout, then use 'W' to
-write the empty table to the disk and exit.  Remember that the lack of a
-partition for RomWBW implies the legacy (hd512) layout.
-
-If you are going to use an hd1k layout, then you must create a partition
-for the RomWBW CP/M slices.  The partition can be placed anywhere you 
-want and can be any size >= 8MB.  Keeping the size of the partition to 
-increments of 8MB makes sense.  The partition type **must** be set to 
-'2e'.  The typical location for the RomWBW partition is at 1MB with a 
-size of 512MB (64 slices).  Below is an example of creating a RomWBW 
-partition following these guidelines.
+On Linux/MacOS the `dd` command can be used to write data in a controlled manner.
+The `dd` command supports options to define precisly souce 
+and destination offsets and sizes to copy. 
+From the documentation of `dd` the following options are important.
 
 ```
-FDISK80 for RomWBW, UNA, Mini-M68k, KISS-68030, SBC-188  ----
-       Version 1.1-22 created 7-May-2020
-                 (Running under RomWBW HBIOS)
+     if=file  Read input from file instead of the standard input.
+     of=file  Write output to file instead of the standard output.  
+     skip=n   Skip n blocks from the beginning of the input before
+              copying. 
+     seek=n   Seek n blocks from the beginning of the output before
+              copying.
+     count=n  Copy only n input blocks.
+     bs=n     Set both input and output block size to n bytes instead
+              of the default 512
+ ```
+
+In the following examples we use the above options, noting the `of=` option
+is specific to your computer but defines the block device that the target
+media is mounted to in the operating system, 
+and `bs=1MB` defines the block size used in other parameters which is convienient 
+since it aligns perfectly with slices which are exactly 8MB 
+and the initial partition table is exactly 1MB. 
+
+The commands in the examples below are run from the `Binary` folder of RomWBW distribution.
+
+#### Example 1 : Copy the Combo Image without replacing partition table
+
+In this example we will copy the (hd1k) combo image over our media 
+without replacing the partition table. In this example we assume the media
+has already been formated with the combo image, and we have modified
+the partition table, which we do not want to overrite.
 
-HBIOS unit number [0..11]: 4
-Capacity of disk 4:  (  4G)  7813120      Geom 77381010
-Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
- 1             00       *** empty ***
- 2             00       *** empty ***
- 3             00       *** empty ***
- 4             00       *** empty ***
->>i
->>n
-New partition number: 1
-Starting Cylinder (default 0): 1Mb
-Ending Cylinder (or Size= "+nnn"): +512Mb
->>t
-Change type of partition number: 1
-New type (in hex), "L" lists types: 2e
->>p
-Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
- 1    RomWBW   2e      8:0:1  1023:15:16        2048    1048576  512M
- 2             00       *** empty ***
- 3             00       *** empty ***
- 4             00       *** empty ***
->>w
-Do you really want to write to disk? [N/y]: y
-Okay
-FDISK exit.
 ```
+Binary % sudo dd if=hd1k_combo.img of=/dev/disk9 skip=1 seek=1 bs=1M
 
-At this point, it is best to restart your system to make sure that
-the operating system is aware of the partition table updates.  Start
-CP/M 2.2 or Z-System from ROM again.
-
-You are now ready to initialize the individual slices of your hard disk 
-media.  On RomWBW, slice initialization is done using the CLRDIR 
-application.  Since the CLRDIR application works on OS drive letters, 
-you must pay attention to how the OS drive letters are mapped to your 
-disk devices which is listed when the OS starts.  Let's assume that C: 
-has been assigned to slice 0 of the disk you are initializing.  You 
-would use `CLRDIR C:` to initialize C: and prepare it hold files. Note 
-that CLRDIR will prompt you for confirmation and you must respond with a
-**capital** 'Y' to confirm.
-
-After CLRDIR completes, the slice should be ready to use by the operating
-system via the drive letter assigned.  Start by using the `DIR` command
-on the drive (`DIR C:`).  This should return without error, but list
-no files.  Next, use the `STAT` command to confirm that the disk is
-using the layout you intended.  For example, use `STAT C:DSK:` and
-look at the number of "32  Byte Directory Entries".  It should say
-512 for a legacy (hd512) disk layout and 1024 for a modern (hd1024)
-disk layout.
-
-Assuming you want to use additional slices, you should initialize them
-using the same process.  You may need to reassign OS drive letters to
-access some slices that are beyond the ones automatically assigned.
-You can use the `ASSIGN` command to handle this.
+Password:
 
-Once you have your slice(s) initialized, you can begin transferring 
-files to the associated drive letters.  Refer to the [Transferring 
-Files] chapter for options to do this.  If you want to make a slice
-bootable, you will need to use `SYSCOPY` to setup the system track(s)
-of the slice.  The use of `SYSCOPY` depends on the operating system
-and is described in the [Operating Systems] chapter of this document.
+48+0 records in
+48+0 records out
+50331648 bytes transferred in 11.503776 secs (4745528 bytes/sec)
+```
 
-As an example, let's assume you want to setup C: as a bootable
-Z-System disk and add to it all the files from the ROM disk.  To
-setup the system track you would use:
+The `skip=1` skips the first 1MB in the input file, and likewise 
+`seek=1` skips the first 1MB of the target media file we are writing to,
+tus in effect we are skipping the first 1MB,  which contains the 
+partition table itself.
 
-```
-B>SYSCOPY C:=B:ZSYS.SYS
+#### Example 2 : Copy the Games image to an empty slice of our media
 
-SYSCOPY v2.0 for RomWBW CP/M, 17-Feb-2020 (CP/M 2 Mode)
-Copyright 2020, Wayne Warthen, GNU GPL v3
+In this example we will copy the (hd1k) games image to Slice 6 (free)
+of our existing media. In this example we assume the media 
+has already been formated with the combo image, which already 
+contains 6 slices (numbered from 0 to 5)
+We are just coping the needed slice to this existing media
+as a new slice (number 6) after the existing slices making it the 7th slice.
 
-Transfer system image from B:ZSYS.SYS to C: (Y/N)? Y
-Reading image... Writing image... Done
 ```
+Binary % sudo dd if=hd1k_games.img of=/dev/disk9 seek=49 bs=1M
 
-Then, to copy all of the files from the ROM disk to C:, you could use
-the `COPY` command as shown below.  In this example, the list of files
-being copied has been truncated.
+Password:
 
-```
-B>copy *.* m:
-COPY  Version 1.73 (for ZSDOS)   2 Jul 2001
-Copying B0:????????.??? to M0:
- -> ASM     .COM..Ok  Verify..Ok
- -> ASSIGN  .COM..Ok  Verify..Ok
- -> CLRDIR  .COM..Ok  Verify..Ok
- -> COMPARE .COM..Ok  Verify..Ok
- -> COPY    .COM..Ok  Verify..Ok
- -> CPM     .SYS..Ok  Verify..Ok
- 0 Errors
+8+0 records in
+8+0 records out
+8388608 bytes transferred in 1.917296 secs (4375228 bytes/sec)
 ```
 
-Once this process succeeds, you will be able to boot directly to the
-disk slice from the boot loader prompt. See the instructions in
-[Starting Operating Systems from Disk] for details on this.
+The `seek=49` skips the first 49MB of the media file we are writing to.
+49 is calculated as `(slice number * 8) + 1`, 
+where 8 is the size of a slice 
+and 1 is the size of the partition table im megabytes.
+Thus we are skipping 6 slices (in the combo image) 
+and writing to the 7th slice.
 
 # Operating Systems
 
@@ -2222,8 +2388,8 @@ same basic filesystem format from DRI CP/M 2.2 (except for p-System). As
 a result, a formatted filesystem will be accessible to any operating 
 system. The only possible issue is that if you turn on date/time 
 stamping using the newer OSes, the older OSes will not understand this. 
-Files will not be corrupted, but the date/time stamps will not be 
-maintained.
+The older OS will not corrupt the files, but the date/time stamps will
+not be maintained.
 
 The following sections briefly describe the operating system options
 currently available and brief operating notes.
@@ -2241,7 +2407,7 @@ less likely to encounter compatibility issues.
 
 #### Documentation
 
-* [CPM Manual]($doc_root$/CPM Manual.pdf)
+* [CPM Manual]($doc_root$/CPM/CPM Manual.pdf)
 
 #### Boot Disk
 
@@ -2252,6 +2418,88 @@ call "CPM.SYS".  For example:
 
 `SYSCOPY C:=B:CPM.SYS`
 
+#### Character Device Mapping
+
+Character device mapping under CP/M 2.2 has 3 layers:
+
+CP/M Logical Device --> CP/M Physical Device --> RomWBW HBIOS Device
+
+The CP/M Logical Devices are:
+
+| Device | Description                                                              |
+|--------|--------------------------------------------------------------------------|
+| `CON:` | System console device, used by CCP for communication with the operator   |
+| `RDR:` | Paper tape reader device                                                 |
+| `PUN:` | Paper tape punch device                                                  |
+| `LST:` | Output list device                                                       |
+
+The CP/M Physical Devices are:
+
+| Device | Description                                                              |
+|--------|--------------------------------------------------------------------------|
+| `TTY:` | Teletype device (slow speed console)                                     |
+| `CRT:` | Cathode ray tube device (high speed console)                             |
+| `BAT:` | Batch processing (input from `RDR:`, output to `LST:`)                   |
+| `UC1:` | User-defined console                                                     |
+| `PTR:` | Paper tape reader (high speed reader)                                    |
+| `UR1:` | User-defined reader #1                                                   |
+| `UR2:` | User-defined reader #2                                                   |
+| `PTP:` | Paper tape punch (high speed punch)                                      |
+| `UP1:` | User-defined punch #1                                                    |
+| `UP2:` | User-defined punch #2                                                    |
+| `LPT:` | Line printer                                                             |
+| `UL1:` | User-defined list device #1                                              |
+
+CP/M Logical Devices are mapped to CP/M Physical Devices via the
+IOBYTE at 0x0003 as shown below.
+
++----------------+----------+----------+----------+----------+
+| Logical Device | `LST:`   | `PUN:`   | `RDR:`   | `CON:`   |
++----------------+----------+----------+----------+----------+
+| IOBYTE Bits    | 7 6      | 5 4      | 3 2      | 1 0      |
++================+==========+==========+==========+==========+
+| 0 (0b00)       | `TTY:`   | `TTY:`   | `TTY:`   | `TTY:`   |
++----------------+----------+----------+----------+----------+
+| 1 (0b01)       | `CRT:`   | `PTP:`   | `PTR:`   | `CRT:`   |
++----------------+----------+----------+----------+----------+
+| 2 (0b10)       | `LPT:`   | `UP1:`   | `UR1:`   | `BAT:`   |
++----------------+----------+----------+----------+----------+
+| 3 (0b11)       | `UL1:`   | `UP2:`   | `UR2:`   | `UC1:`   |
++----------------+----------+----------+----------+----------+
+
+The mappings above can be managed using the `STAT` command.  This
+command essentially just modifies the IOBYTE value.
+
+CP/M Physical Devices are mapped to RomWBW HBIOS devices during
+the boot process depending on the number of HBIOS Char devices
+in the system.
+
+All CP/M Physical Devices are initially mapped to HBIOS Char 0.
+If additional HBIOS Char devices are available in the system, they will
+be mapped as below:
+
+| CP/M   | RomWBW HBIOS     |
+|--------|------------------|
+| `TTY:` | Char 0           |
+| `CRT:` | CRT              |
+| `BAT:` | CP/M RDR/LST     |
+| `UC1:` | Char 1           |
+| `PTR:` | Char 1           |
+| `UR1:` | Char 2           |
+| `UR2:` | Char 3           |
+| `PTP:` | Char 1           |
+| `UP1:` | Char 2           |
+| `UP2:` | Char 3           |
+| `LPT:` | Char 1           |
+| `UL1:` | Char 2           |
+
+Normally, the HBIOS Console device (Loader prompt) is on HBIOS Device
+Char 0.  If it has been reassigned to a different HBIOS character
+device before launching CP/M, then the above mapping will be modified.
+TTY: will be assigned to the current HBIOS console Char device.  The
+remaining assignments will be filled in with the other Char devices
+as available.
+
 #### Notes
 
 * You can change media, but it must be done while at the OS
@@ -2287,9 +2535,9 @@ via the NZ-COM adaptation (see below).
 
 #### Documentation
 
-* [ZCPR Manual]($doc_root$/ZCPR Manual.pdf)
-* [ZCPR-DJ]($doc_root$/ZCPR-DJ.doc)
-* [ZSDOS Manual]($doc_root$/ZSDOS Manual.pdf)
+* [ZCPR Manual]($doc_root$/CPM/ZCPR Manual.pdf)
+* [ZCPR-DJ]($doc_root$/CPM/ZCPR-DJ.doc)
+* [ZSDOS Manual]($doc_root$/CPM/ZSDOS Manual.pdf)
 
 #### Boot Disk
 
@@ -2300,6 +2548,12 @@ call "ZSYS.SYS".  For example:
 
 `SYSCOPY C:=B:ZSYS.SYS`
 
+#### Character Device Mapping
+
+Mapping of character devices to RomWBW HBIOS Character devices
+operates exactly the same as described in [Digital Research CP/M 2.2].
+The CP/M 2.2 `STAT` command is used to manipulate the device mappings.
+
 #### Notes
 
 * Although most CP/M 2.2 applications will run under Z-System, some
@@ -2312,32 +2566,16 @@ call "ZSYS.SYS".  For example:
 
 * ZSDOS has a concept of fast relog of drives. This means that after a 
   warm start, it avoids the overhead of relogging all the disk drives. 
-  There are times when this causes issues. After using tools like CLRDIR 
+  There are times when this causes issues. After using tools like `CLRDIR` 
   or MAP, you may need to run “RELOG” to get the drive properly 
   recognized by ZSDOS.
 
-* RomWBW fully supports both DateStamper and P2DOS file date/time
-  stamping.  You must load the desired stamping module (`LDDS` for
-  DateStamper or `LDP2D` for P2DOS).  This could be automated using
-  a `PROFILE.SUB` file.  Follow the ZSDOS documentation to initialize
-  a disk for stamping.
-
 * ZSVSTAMP expects to be running under the ZCPR 3.X command processor. 
   By default, RomWBW uses ZCPR 1.0 (intentionally, to reduce space usage) 
   and ZSVSTAMP will just abort in this case. It will work fine if you 
   implement NZCOM. ZSVSTAMP is included solely to facilitate usage 
   if/when you install NZCOM.
 
-* FILEDATE only works with DateStamper style date stamping. If you run 
-  it on a drive that is not initialized for DateStamper, it will complain 
-  `FILEDATE, !!!TIME&.DAT missing`. This is normal and just means that 
-  you have not initialized that drive for DateStamper (using PUTDS).
-
-* ZXD will handle either DateStamper or P2DOS type date stamping. 
-  However, it **must** be configured appropriately. As distributed, it will 
-  look for P2DOS date stamps. Use ZCNFG to reconfigure it for P2DOS if 
-  that is what you are using.
-
 * Many of the tools can be configured (using either ZCNFG or DSCONFIG). 
   The configuration process modifies the actual application file itself. 
   This will fail if you try to modify one that is on the ROM disk because 
@@ -2348,10 +2586,6 @@ call "ZSYS.SYS".  For example:
   SETTERM. So, run SETTERM on DSCONFIG before using DSCONFIG to configure 
   DATSWEEP!
 
-* After using PUTDS to initialize a directory for ZDS date stamping, I 
-  am finding that it is necessary to run RELOG before the stamping 
-  routines will actually start working.
-
 * Generic CP/M PIP and ZSDOS path searching do not mix well if you use 
   PIP to copy to or from a directory in the ZSDOS search path. Best to 
   use COPY from the ZSDOS distribution.
@@ -2366,6 +2600,11 @@ a host OS. On the RomWBW NZCOM disk images, the boot OS is ZSDOS 1.1.
 A `PROFILE.SUB` file is included which automatically launches NZCOM
 as soon as ZSDOS loads.
 
+NZCOM is a companion product to Z3PLUS, they are almost identical having
+been written by the same team. The only difference is the base operating
+system on which they run, but the architecture, the tools, libraries,
+files, etc are all primarily the same.
+
 NZCOM is highly configurable.  The RomWBW distribution has been
 configured in the most basic way possible.  You should refer to the
 documentation and use `MKZCM` as desired to customize your system.
@@ -2376,7 +2615,9 @@ Manual.pdf" document in order to use this operating system effectively.
 
 #### Documentation
 
-* [NZCOM Users Manual]($doc_root$/NZCOM Users Manual.pdf)
+* [NZCOM Users Manual]($doc_root$/CPM/NZCOM Users Manual.pdf)
+* [Z-System Users Guide]($doc_root$/CPM/Z-System Users Guide.pdf)
+* [ZCPR3.3 User Guide]($doc_root$/CPM/ZCPR3.3 User Guide.pdf)
 
 #### Boot Disk
 
@@ -2384,6 +2625,18 @@ Since NZ-COM boots via Z-System, you can make a bootable
 NZ-COM disk using `ZSYS.SYS` as described in [Z-System] above.  You
 will need to add a `PROFILE.SUB` file to auto-start NZ-COM itself.
 
+#### Character Device Mapping
+
+Mapping of character devices to RomWBW HBIOS Character devices
+operates exactly the same as described in [Digital Research CP/M 2.2].
+However, it is **not** possible to manipulate the CP/M Logical to
+Physical device mapping using the `STAT` command.  The mapping is
+static.
+
+Note: A custom ZCPR IOP module could theoretically be used to manage
+the character device mappings.  RomWBW does not provide this module
+and writing an IOP module is beyond the scope of this document.
+
 #### Notes
 
 * All of the notes for [Z-System] above generally apply to NZCOM.
@@ -2391,6 +2644,10 @@ will need to add a `PROFILE.SUB` file to auto-start NZ-COM itself.
 * There is no `DIR` command, you must use `SDZ` instead.  If you don't
   like this, look into the `ALIAS` facility.
 
+* For consistency with other ZCPR3 operating systems (ZPM3, Z3PLUS) 
+  the SHOW.COM and HELP.COM command files were renamed to ZSHOW.COM
+  and ZHELP.COM
+
 ## Digital Research CP/M 3
 
 This is the Digital Research follow-up product to their very popular 
@@ -2401,10 +2658,10 @@ has a new suite of support tools and help system.
 
 #### Documentation
 
-* [CPM3 Users Guide]($doc_root$/CPM3 Users Guide.pdf)
-* [CPM3 Command Summary]($doc_root$/CPM3 Command Summary.pdf)
-* [CPM3 Programmers Guide]($doc_root$/CPM3 Programmers Guide.pdf)
-* [CPM3 System Guide]($doc_root$/CPM3 System Guide.pdf)
+* [CPM3 Users Guide]($doc_root$/CPM/CPM3 Users Guide.pdf)
+* [CPM3 Command Summary]($doc_root$/CPM/CPM3 Command Summary.pdf)
+* [CPM3 Programmers Guide]($doc_root$/CPM/CPM3 Programmers Guide.pdf)
+* [CPM3 System Guide]($doc_root$/CPM/CPM3 System Guide.pdf)
 
 #### Boot Disk
 
@@ -2450,6 +2707,36 @@ COPY A:CCP.COM F:
 Note in the example above that `CPM3BNK.SYS` is renamed to `CPM3.SYS`
 in the copy command.
 
+#### Character Device Mapping
+
+Character device mapping under CP/M 3 has 3 layers:
+
+CP/M Logical Device --> CP/M Physical Device --> RomWBW HBIOS Device
+
+The primary CP/M Logical Devices are:
+
+| Device | Description                                                              |
+|--------|--------------------------------------------------------------------------|
+| `CON:` | Console input or output device                                           |
+| `AUX:` | Auxiliary Input or Output Device                                         |
+| `LST:` | List output device, usually the printer                                  |
+
+There are various aliases for these devices.  Please refer to the CP/M 3
+Users Guide for more information.
+
+The mapping of CP/M 3 Logical Devices to Physical Devices is performed
+using the `DEVICE` command.
+
+CP/M 3 refers to Physical Character Devices using the `COM` device 
+label.  These `COM` devices are mapped directly to the RomWBW HBIOS Char
+devices as described below:
+
+|       `COM0:` --> HBIOS Char 0
+|       `COM1:` --> HBIOS Char 1
+|       `COM2:` --> HBIOS Char 2
+|       . . .
+|       `COMn:` --> HBIOS Char n
+
 #### Notes
 
 - The `COPYSYS` command described in the DRI CP/M 3 documentation is
@@ -2467,6 +2754,58 @@ in the copy command.
   has not been performed on the CP/M 3 disk image.  Follow the 
   CP/M 3 documentation to complete this process, if desired.
 
+## Z3PLUS Z-System for CP/M-Plus
+
+Z3PLUS is a much further refined version of Z-System (ZCPR 3.4). Z3PLUS
+was sold as an enhancement for existing users of CP/M 3.
+For this reason, (by design) Z3PLUS does not provide a way to boot
+directly from disk. Rather, it is loaded after the system boots into
+CP/M 3. A `PROFILE.SUB` file is included which automatically launches 
+Z3PLUS as soon as CP/M 3 loads.
+
+Z3PLUS is a companion product to NZ-COM, they are almost identical having
+been written by the same team. The only difference is the base operating 
+system on which they run, but the architecture, the tools, libraries,
+files, etc are all primarily the same.
+
+Z3PLUS is highly configurable.  The RomWBW distribution has been
+configured in the most basic way possible.  You should refer to the
+documentation to customize your system.
+
+Z3PLUS has substantially more functionality than CP/M 3 or the basic
+Z-System.  It is important to read the "Z3PLUS Users Manual.pdf" 
+document in order to use this operating system effectively.
+
+#### Documentation
+
+* [Z3PLUS Users Manual]($doc_root$/CPM/Z3PLUS Users Manual.pdf)
+* [Z-System Users Guide]($doc_root$/CPM/Z-System Users Guide.pdf)
+* [ZCPR3.3 User Guide]($doc_root$/CPM/ZCPR3.3 User Guide.pdf)
+
+#### Boot Disk
+
+Since Z3PLUS boots via CP/M 3, you first must make the disk CP/M 3
+bootable. This is not a simple process, as well as placing `CPMLDR.SYS` on
+the system track of the disk there are several files that are required 
+on the disk itself.This is described in [Digital Research CP/M 3]
+section above.
+
+You will need to add a `PROFILE.SUB` file to auto-start Z3PLUS itself.
+
+#### Character Device Mapping
+
+Mapping of character devices to RomWBW HBIOS Character devices
+operates exactly the same as described in [Digital Research CP/M 3].
+The CP/M 3 `DEVICE` command is used to manipulate the device mappings.
+
+#### Notes
+
+* All of the notes for [Digital Research CP/M 3] above generally 
+  apply to Z3PLUS.
+
+* Some applications in the Z3PLUS distribution have been upgraded 
+  with newer versions. This is done with in 
+
 ## ZPM3
 
 Simeon Cran's ZPM3 is an interesting combination of the features of both
@@ -2536,6 +2875,12 @@ COPY A:ZINSTAL.ZPM F:
 COPY A:STARTZPM.COM F:
 ```
 
+#### Character Device Mapping
+
+Mapping of character devices to RomWBW HBIOS Character devices
+operates exactly the same as described in [Digital Research CP/M 3].
+The CP/M 3 `DEVICE` command is used to manipulate the device mappings.
+
 #### Notes
 
 - The ZPM3 operating system is contained in the file called CPM3.SYS 
@@ -2553,13 +2898,12 @@ regarding the RomWBW adaptation and customizations.
 
 #### Documentation
 
-* [QP/M 2.7 Installation Guide and Supplements]($doc_root$/qpm27.pdf)
-* [QP/M 2.7 Interface Guide]($doc_root$/qdos27.pdf)
-* [QP/M 2.7 Features and Facilities]($doc_root$/qcp27.pdf)
+* [QP/M 2.7 Installation Guide and Supplements]($doc_root$/CPM/qpm27.pdf)
+* [QP/M 2.7 Interface Guide]($doc_root$/CPM/qdos27.pdf)
+* [QP/M 2.7 Features and Facilities]($doc_root$/CPM/qcp27.pdf)
 
 #### Boot Disk
 
-
 To create or update a bootable QP/M Z-System disk, a special process
 is required.  QP/M is not provided in source format.  You are expected
 to install QP/M over an existing CP/M installation using the
@@ -2590,6 +2934,14 @@ pre-built RomWBW QP/M disk image includes a couple of specific
 non-default settings to optimize use with RomWBW.  Please review the
 notes in the ReadMe.txt file in Source/Images/d_qpm.
 
+#### Character Device Mapping
+
+Mapping of character devices to RomWBW HBIOS Character devices operates 
+exactly the same as described in [Digital Research CP/M 2.2]. The 
+mappings can be viewed or modified using the QP/M `QSTAT` command which 
+is analogous to the CP/M 2.2 `STAT` command.  Do **not** use the CP/M 
+2.2 `STAT` command under QP/M.
+
 #### Notes
 
 - QPM is not available as source.  This implementation was based
@@ -2628,7 +2980,19 @@ selecting slice 0 of the corresponding hard disk unit at
 the RomWBW Boot Loader prompt.  Do not attempt to use
 CP/M slices on the same disk.
 
-Refer to the ReadMe.txt file in Source/pSys for more details.
+Due to limitations in the p-System configuration mechanism, it does
+not recognize the arrow keys of an ANSI Terminal.  To work around
+this, the following control keys have been defined:
+
+| Function   | Key        |
+|------------|------------|
+| Up         | ctrl+E     |
+| Down       | ctrl+X     |
+| Left       | ctrl+S     |
+| Right      | ctrl+D     |
+
+Refer to [Source/pSys/ReadMe.txt]($file_root$/Source/pSys/ReadMe.txt)
+for more details about the p-System adaptation.
 
 #### Documentation
 
@@ -2641,6 +3005,13 @@ scratch under RomWBW.  This has already been done as part of the
 porting process.  You must use the provided p-System hard disk image
 file which is bootable.
 
+#### Character Device Mapping
+
+RomWBW Character Devices are automatically assigned to p-System devices 
+at startup.  The current HBIOS Console device is assigned to CONSOLE:.  
+The next available HBIOS Char device is assigned to REMIN:/REMOUT:.  The
+next available HBIOS Char devices is assigned to PRINTER:
+
 #### Notes
 
 * There is no floppy support at this time.
@@ -2844,202 +3215,16 @@ floppy disk and hard disk images.
 | TUNE            | Play .PT2, .PT3, .MYM audio files.                                 |
 | INTTEST         | Test interrupt vector hooking.                                     |
 
-# FAT Filesystem
-
-The FAT filesystem format that originated with MS-DOS is almost
-ubiquitous across modern computers.  Virtually all operating systems
-now support reading and writing files to a FAT filesystem.  For this
-reason, RomWBW now has the ability to read and write files on FAT
-filesystems.
-
-This is accomplished by running a RomWBW custom application called `FAT`.
-This application understands both FAT filesystems as well as CP/M filesystems.
-
-* Files can be copied between a FAT filesystem and a CP/M filesystem,
-  but you cannot execute files directly from a FAT filesystem.
-* FAT12, FAT16, and FAT32 formats are supported.
-* Long filenames are not supported.  Files with long filenames will
-  show up with their names truncated into the older 8.3 convention.
-* A FAT filesystem can be located on floppy or hard disk media.  For
-  hard disk media, a valid FAT Filesystem partition must exist.
-* Note that CP/M (and compatible) OSes do not support all of the
-  filename characters that a modern computer does.  The following
-  characters are **not permitted** in a CP/M filename:
-
-  `< > . , ; : = ? * [ ] _ % | ( ) / \`
-
-  The FAT application does not auto-rename files when it encounters
-  invalid filenames.  It will just issue an error and quit.
-  Additionally, the error message is not very clear about the problem.
-
-## FAT Filesystem Preparation
-
-In general, you can create media formatted with a FAT filesystem on
-your RomWBW computer or on your modern computer.  We will only be
-discussing the RomWBW-based approach here.
-
-In the case of a floppy disk, you can use the `FAT` application to 
-format the floppy disk.  The floppy disk must already be physically 
-formatted using RomWBW FDU or equivalent.  If your floppy disk is on 
-RomWBW disk unit 2, you could use `FAT FORMAT 2:`.  This will overwrite 
-the floppy with a FAT filesystem and all previous contents will be lost.
-Once formatted this way, the floppy disk can be used in a floppy drive 
-attached to a modern computer or it can be used on RomWBW using the 
-other `FAT` tool commands.
-
-In the case of hard disk media, it is necessary to have a FAT
-partition.  If you prepared your RomWBW hard disk media using the
-disk image process, then this partition will already be defined and
-you do not need to recreate it.  This default FAT partition is located
-at approximately 512MB from the start of your disk and it is 384MB in
-size.  So, your hard disk media must be 1GB or greater to use this
-default FAT partition.
-
-You can confirm the existence of the FAT partition with `FDISK80` by 
-using the 'P' command to show the current partition table.  Here is an 
-example of a partition table listing from `FDISK80` that includes the 
-FAT partition (labelled "FAT16"):
-
-```
-Capacity of disk 4:  (  4G)  7813120      Geom 77381010
-Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
- 1    RomWBW   2e      8:0:1  1023:15:16        2048    1048576  512M
- 2     FAT16   06   1023:0:1  1023:15:16     1050624     786432  384M
- 3             00       *** empty ***
- 4             00       *** empty ***
-```
-
-If your hard disk media does not have a FAT partition already defined,
-you will need to define one using FDISK80 by using the 'N' command.
-Ensure that the location and size of the FAT partition does not
-overlap any of the CP/M slice area and that it fits within the size
-of your media.
-
-Once the partition is defined, you will still need to format it.  Just
-as with a floppy disk, you use the `FAT` tool to do this.  If your
-hard disk media is on RomWBW disk unit 4, you would use `FAT FORMAT 4:`.
-This will look something like this:
-
-```
-E>fat format 4:
-
-About to format FAT Filesystem on Disk Unit #4.
-All existing FAT partition data will be destroyed!!!
-
-Continue (y/n)?
-
-Formatting... Done
-```
-
-Your FAT filesystem is now ready to use.
-
-If your RomWBW system has multiple disk drives/slots, you can also just 
-create a disk with your modern computer that is a dedicated FAT 
-filesystem disk.  You can use your modern computer to format the disk 
-(floppy, CF Card, SD Card, etc.), then insert the disk in your RomWBW 
-computer and access it using `FAT` based on its RomWBW unit number.
-
-**WARNING**: Microsoft Windows will sometimes suggest reformatting 
-partitions that it does not recognize.  If you are prompted to format a 
-partition of your SD/CF/USB Media when inserting the card into a Windows
-computer, you probably want to select Cancel.
-
-## FAT Application Usage
-
-Complete instructions for the `FAT` application are found in $doc_apps$.
-Here, we will just provide a couple of simple examples.  Note that the 
-FAT application is not on the ROM disk because it is too large to 
-include there.
-
-The most important thing to understand about the `FAT` application is
-how it refers to FAT filesystems vs. CP/M filesystems.  It infers this
-based on the file specification provided.  If you use a specification
-like `C:SAMPLE.TXT`, it will use the C: drive of your CP/M operating
-system.  If you use a specification like `4:SAMPLE.TXT`, it will use
-the FAT filesystem on the disk in RomWBW disk unit 4.  Basically, if
-you start your file or directory specification with a number followed
-by a colon, it means FAT filesystem.  Anything else will mean CP/M
-filesystem.
-
-Here are a few examples.  This first example shows how to get a FAT
-directory listing from RomWBW disk unit 4:
-
-```
-E>fat dir 4:
-
-Directory of 4:
-
-
-E>
-```
-
-As you can see, there are currently no files there.  Now let's copy
-a file from CP/M to the FAT directory:
-
-```
-E>fat copy sample.txt 4:
-
-Copying...
-
-SAMPLE.TXT ==> 4:/SAMPLE.TXT ... [OK]
-
-    1 File(s) Copied
-```
-
-If we list the FAT directory again, you will see the file:
-
-```
-E>fat dir 4:
-
-Directory of 4:
-
-01/30/2023  17:50:14         29952  ---A  SAMPLE.TXT
-
-```
-
-Now let's copy the file from the FAT filesystem back to CP/M.  This
-time we will get a warning about overwriting the file.  For this
-example, we don't want to do that, so we abort and reissue the
-command specifying a new filename to use:
-
-```
-E>fat copy 4:sample.txt e:
-
-Copying...
-
-4:/SAMPLE.TXT ==> E:SAMPLE.TXT Overwrite? (Y/N) [Skipped]
-
-    0 File(s) Copied
-
-E>fat copy 4:sample.txt e:sample2.txt
-
-Copying...
-
-4:/SAMPLE.TXT ==> E:SAMPLE2.TXT ... [OK]
-
-    1 File(s) Copied
-```
-
-Finally, let's try using wildcards:
-
-```
-E>fat copy sample*.* 4:
-
-Copying...
-
-SAMPLE.TXT ==> 4:/SAMPLE.TXT Overwrite? (Y/N) ... [OK]
-SAMPLE2.TXT ==> 4:/SAMPLE2.TXT ... [OK]
-
-    2 File(s) Copied
-```
-
 # Real Time Clock
 
 RomWBW supports a variety of real time clock hardware.  If your
 system has this hardware, then it will be able to maintain the
 current date and time even while your system is turned off.
+
 Additionally, depending on the operating system being used, you may be
 able to utilize date/time stamping of files.
+To facilitate this a CP/M clock driver (WBWCLK) has been included 
+inside `CLOCKS.DAT` that will read the clock via a RomWBW HBIOS call
 
 You can determine if your system has a real time clock present (and
 functioning) by looking at the boot messages.  Here is an example of
@@ -3065,6 +3250,8 @@ RomwWBW includes two utilities for displaying or setting the date/time
 stored by the RTC.  They are both a bit different and are briefly
 described below.
 
+A third utility `TESTCLOK` is also included as part of ZSDOS
+
 ### WDATE Utility
 
 The `WDATE` utility (contributed by Kevin Boone) is an application
@@ -3144,6 +3331,57 @@ Do **not** enable charging unless you are sure that your system
 supports this.  If your RTC is being powered by a normal battery, it
 would be dangerous to enable charging.
 
+### TESTCLOK Utility
+
+The `TESTCLOK` utility is used to test a selected CPM clock driver 
+loaded from the CLOCKS.DAT file. After selecting the location of CLOCKS.DAT 
+and the clock driver (45. WBWCLK) it displays the currently configured time 
+until a key is pressed. 
+
+```
+A>testclok
+
+TESTCLOK V1.0    Copyright (C) 1988    H.F. Bower / C.W. Cotrill
+
+Extract Clock from Library ([Y]/N) : Y
+Location of CLOCKS.DAT [A0:] : <RETURN> 
+
+  1. ACTRIX             2. ALSPA              3. AMPRO-LB         
+  4. ANLYTCL-PRD        5. AP2-CDZ180         6. AP2-THND/MT      
+  7. AP2-TIMASTR        8. AP2E+PCP-TM        9. AP2E+PCPI        
+ 10. AP2E-THUNDR       11. AP2E-TMASTR       12. BIG-BD-II        
+ 13. BP-BIOS           14. CCS-WALLCLK       15. CPUPRO-SSB1      
+ 16. ELECTR-MFIO       17. EPSON-QX10        18. ETS180IO+        
+ 19. H19-SUPER19       20. H19-ULTRA         21. H19-WATZMAN      
+ 22. H89-BITZERO       23. H89-PC12          24. H89-WIDGET       
+ 25. H89-WISE          26. H89UTI            27. HEATH-BIOS       
+ 28. HOUSEMASTER       29. K83-HOLMES        30. KAYPRO-84        
+ 31. KENMOR-ZTIM       32. KPRO-ADVENT       33. KPRO-LEGACY      
+ 34. MD3-MACK          35. MTN100K-DAY       36. ONEAC-ON!        
+ 37. OTRANA-ATCH       38. P&T-HEARTBT       39. QTSYS-S100       
+ 40. RELATIVE          41. S100-5832         42. SB180-HRTBT      
+ 43. SB180-XBIOS       44. SIMHCLOK          45. WBWCLK           
+ 46. XEROX-820         47. ZSDOS-BIOS       
+
+Enter Clock Driver Selection : 45
+
+..Loading : WBWCLK      ... 
+Linking Clock Module... OK
+RomWBW HBIOS Clock      1.1
+
+RomWBW Series HBIOS Clock
+
+Press any key to quit...
+
+ 19 Oct 2023  14:24:34
+```
+
+Since this runs at the CPM driver level it is useful as an end-to-end test
+to prove that date time stamping is able to read the correct time
+
+The `TESTCLOK` utility is provided by ZSDOS, plese see the ZSDOS Manual 
+for further information
+
 ## Date/Time File Stamping
 
 If an RTC is available in your system, then most operating systems
@@ -3152,10 +3390,16 @@ date/time of file creation, update, and or access in the directory.
 This capability is available in all of the RomWBW operating system
 except the original DRI CP/M 2.2.
 
-In some cases (such as ZSDOS), you must load an RSX (memory resident
-utility) to enable date/time stamping of files.  Additionally, you
-will need to initialize the directory.  The procedure varies in each
-operation system, so you must review the associated documentation.
+Three types of date/time stamping are supported using realtime clock 
+supported by RomWBW HBIOS. DateStamper, NZT and P2DOS.
+
+In some cases (such as ZSDOS), you must load an RSX (memory resident 
+utility) to enable date/time stamping of files. This could be automated 
+using a `PROFILE.SUB` file.
+Preconfigured loaders are provided, bypassing the need to use SETUPZST.
+
+Additionally, you will need to initialize the directory. The procedure varies
+depending on the date/time stamping mechanism, so you must review the associated documentation.
 
 The date/time stamping mechanisms for each operating system are
 generally not compatible.  If you initialize a directory for a type
@@ -3166,6 +3410,71 @@ mechanism.  Doing so may corrupt the directory.
 The RomWBW disk images do not have date/time stamping initialized.  This
 is to avoid any chance of directory corruption.
 
+### DateStamper
+
+DateStamper datestamping follows the standard set by Plu*Perfect Systems. 
+This method stores stamps in a disk file named `!!!TIME&.DAT`. 
+Only DateStamper stamping stores full time and date stamps for
+file Creation, Last Modification, and Last Access, 
+and may be used with any CP/M diskette format. In addition, 
+the DateStamper protocol is supported by a mature set of compatible utilities.
+
+Key Utilities
+
+* LDDS.COM - Load DateStamper date/time stamping resident extension. (RomWBW Provided)
+* PUTDS.COM - Prepare disk for DateStamper date/time stamping.
+
+After using PUTDS to initialize a directory for ZDS date stamping,
+it may be necessary to run RELOG before the stamping routines 
+will actually start working.
+
+### P2DOS (CP/M Plus compatible)
+
+CP/M Plus-type datestamping is also widely used due to the popularity 
+of CP/M Plus (also know as CP/M 3). CP/M Plus-type file datestamping uses 
+directory sectors to store file datestamps which may be accessed more quickly 
+by programs, but there is no Last File Access stamp. Finally, the range of 
+utilities for this type of stamps is more limited than for the DateStamper protocol.
+
+Key Utilities
+
+* LDP2D.COM - Load P2DOS date/time stamping resident extension. (RomWBW Provided)
+* INITDIR.COM - Prepares disks for P2DOS-type file stamping.
+
+### NZT
+
+_The use of NZT needs to be further documented_
+
+Key Utilities
+
+* LDNZT.COM - Load NZT date/time stamping resident extension. (RomWBW Provided)
+
+### Additional Notes
+
+The following files have been provided, customised and tested for for use in RomWBW
+
+* `CLOCKS.DAT` - Library of clock drivers, which has been updated to include 
+   the RomWBW clock driver WBWCLK, and also includes the SIMHCLOK clock driver.
+   The file is just a standard LU type library and is easily updated using NULU. 
+   The members are the relocatable binaries, but with the .REL extension removed.
+* `STAMPS.DAT` - Library of available date/time stamping modules for SETUPZST.
+   The file has been replaced with an updated version from the Walnut Creek CP/M CDROM. 
+   The original version has a bug that prevents RSX (resident system extension) mode 
+   to load properly.
+
+Additional Notes
+
+* `SETUPZST` (provided by ZSDOS) Should not normally be needed since the 
+   creation of the appropriate LDTIM loaders has already been performed.
+* `FILEDATE` only works with DateStamper style date stamping. If you run
+   it on a drive that is not initialized for DateStamper, it will complain
+   `FILEDATE, !!!TIME&.DAT missing`. This is normal and just means that
+   you have not initialized that drive for DateStamper (using PUTDS).
+* `ZXD` will handle either DateStamper or P2DOS type date stamping.
+   However, it **must** be configured appropriately. As distributed, it will
+   look for P2DOS date stamps. Use ZCNFG to reconfigure it for P2DOS if
+   that is what you are using.
+
 ## Timezone
 
 None of the operating systems distributed with RomWBW have any concept
@@ -3682,35 +3991,222 @@ detail in the Source/Images directory of the distribution.
 
 ## FAT Filesystem Transfers
 
-The ability to interact with FAT filesystems was covered in
-[FAT Filesystem].  This capability means that you can generally use your
- modern computer to make an SD Card, CF Card, or USB Drive with a 
-standard FAT32 filesystem on it, then place that media in your RomWBW 
-computer and access the files.
+The FAT filesystem format that originated with MS-DOS is almost
+ubiquitous across modern computers.  Virtually all operating systems
+now support reading and writing files to a FAT filesystem.  For this
+reason, RomWBW now has the ability to read and write files on FAT
+filesystems.
+
+This capability means that you can generally use your modern computer 
+to make an SD Card, CF Card, or USB Drive with a standard FAT filesystem 
+on it, then place that media in your RomWBW computer and access the files.
+
+* Files can be copied between a FAT filesystem and a CP/M filesystem,
+  but you cannot execute files directly from a FAT filesystem.
+
+* FAT12, FAT16, and FAT32 formats are supported.
+
+* Long filenames are not supported.  Files with long filenames will
+  show up with their names truncated into the older 8.3 convention.
+  If you have files on your modern computer with long filenames, 
+  it is usually easiest to rename them on the modern computer.
+
+* A FAT filesystem can be located on floppy or hard disk media.  For
+  hard disk media, a valid FAT Filesystem partition must exist.
+
+Some additional **Notes** and **WARNINGS** Things to be careful about
+
+* CP/M (and compatible) OSes do not support all of the
+  filename characters that a modern computer does.  The following
+  characters are **not permitted** in a CP/M filename:
+
+  `< > . , ; : = ? * [ ] _ % | ( ) / \`
+
+  The FAT application does not auto-rename files when it encounters
+  invalid filenames.  It will just issue an error and quit.
+  Additionally, the error message is not very clear about the problem.
+
+* Microsoft Windows will sometimes suggest **reformatting**
+  partitions that it does not recognize (e.g. RomWBW).
+  If you are using media that contains both a FAT partition
+  and a RomWBW partition you may prompted to format a partition of your 
+  SD/CF/USB Media when inserting the card into a Windows computer, 
+  you probably want to select Cancel.
+
+### FAT Filesystem Preparation
+
+In general, you can create media formatted with a FAT filesystem on
+your RomWBW computer or on your modern computer.  We will only be
+discussing the RomWBW-based approach here.
+
+#### Floppy Disk
+
+In the case of a floppy disk, you can use the `FAT` application to
+format the floppy disk.  The floppy disk must already be physically
+formatted using RomWBW FDU or equivalent.  If your floppy disk is on
+RomWBW disk unit 2, you could use `FAT FORMAT 2:`.  This will overwrite
+the floppy with a FAT filesystem and all previous contents will be lost.
+Once formatted this way, the floppy disk can be used in a floppy drive
+attached to a modern computer or it can be used on RomWBW using the
+other `FAT` tool commands.
+
+#### Hard Disk
+
+In the case of hard disk media, it is necessary to have a FAT
+partition.  If you prepared your RomWBW hard disk media using the
+disk image process, then this partition will already be defined and
+you do not need to recreate it.  This default FAT partition is located
+at approximately 512MB from the start of your disk and it is 384MB in
+size.  So, your hard disk media must be 1GB or greater to use this
+default FAT partition.
+
+You can confirm the existence of the FAT partition with `FDISK80` by
+using the 'P' command to show the current partition table.  Here is an
+example of a partition table listing from `FDISK80` that includes the
+FAT partition (labelled "FAT16"):
+
+```
+Capacity of disk 4:  (  4G)  7813120      Geom 77381010
+Nr  ---Type- A --      Start         End   LBA start  LBA count  Size
+ 1    RomWBW   2e      8:0:1  1023:15:16        2048    1048576  512M
+ 2     FAT16   06   1023:0:1  1023:15:16     1050624     786432  384M
+ 3             00       *** empty ***
+ 4             00       *** empty ***
+```
+
+If your hard disk media does not have a FAT partition already defined,
+you will need to define one using FDISK80 by using the 'N' command.
+Ensure that the location and size of the FAT partition does not
+overlap any of the CP/M slice area and that it fits within the size
+of your media.
+
+Once the partition is defined, you will still need to format it.  Just
+as with a floppy disk, you use the `FAT` tool to do this.  If your
+hard disk media is on RomWBW disk unit 4, you would use `FAT FORMAT 4:`.
+This will look something like this:
+
+```
+E>fat format 4:
+
+About to format FAT Filesystem on Disk Unit #4.
+All existing FAT partition data will be destroyed!!!
+
+Continue (y/n)?
+
+Formatting... Done
+```
+
+Your FAT filesystem is now ready to use.
+
+If your RomWBW system has multiple disk drives/slots, you can also just
+create a disk with your modern computer that is a dedicated FAT
+filesystem disk.  You can use your modern computer to format the disk
+(floppy, CF Card, SD Card, etc.), then insert the disk in your RomWBW
+computer and access it using `FAT` based on its RomWBW unit number.
+
+### FAT Application Usage
 
-When formatting the media on your modern computer, be sure to pick the 
-FAT filesystem. NTFS and other filesystems will not work.  As previously
-mentioned, the `FAT` application does not understand long filenames, 
-only the traditional 8.3 filenames.  If you have files on your modern 
-computer with long filenames, it is usually easiest to rename them on 
-the modern computer.
+Transferring files is accomplished by running a RomWBW custom application 
+called `FAT`. This application understands both FAT filesystems as well 
+as CP/M filesystems.
 
 To copy files from your modern computer to your RomWBW computer, start 
 by putting the disk media with the FAT filesystem in your modern 
 computer.  The modern computer should recognize it. Then copy the files 
 you want to get to your RomWBW computer onto this media.  Once done, 
 remove the media from your modern computer and insert it in the RomWBW 
-computer.  Finally, use the `FAT` tool to copy the files onto a CP/M 
-drive.
+computer.  
 
-This process works just fine in reverse if you want to copy files from a
+Finally, use the `FAT` tool to copy the files onto a CP/M 
+drive. This process works just fine in reverse if you want to copy files from a
 CP/M filesystem to your modern computer.
 
-**WARNING**: If you are using media that contains both a FAT partition 
-and a RomWBW partition, your modern computer may be confused by the 
-RomWBW partition.  In some cases, it will prompt you to format the 
-RomWBW partition because it doesn't know what it is. You will be 
-prompted before it does this -- just be careful not to allow it.
+Complete instructions for the `FAT` application are found in $doc_apps$.
+Here, we will just provide a couple of simple examples.  Note that the
+FAT application is not on the ROM disk because it is too large to
+include there.
+
+The most important thing to understand about the `FAT` application is
+how it refers to FAT filesystems vs. CP/M filesystems.  It infers this
+based on the file specification provided.  If you use a specification
+like `C:SAMPLE.TXT`, it will use the C: drive of your CP/M operating
+system.  If you use a specification like `4:SAMPLE.TXT`, it will use
+the FAT filesystem on the disk in RomWBW disk unit 4.  Basically, if
+you start your file or directory specification with a number followed
+by a colon, it means FAT filesystem.  Anything else will mean CP/M
+filesystem.
+
+Here are a few examples.  This first example shows how to get a FAT
+directory listing from RomWBW disk unit 4:
+
+```
+E>fat dir 4:
+
+Directory of 4:
+
+
+E>
+```
+
+As you can see, there are currently no files there.  Now let's copy
+a file from CP/M to the FAT directory:
+
+```
+E>fat copy sample.txt 4:
+
+Copying...
+
+SAMPLE.TXT ==> 4:/SAMPLE.TXT ... [OK]
+
+    1 File(s) Copied
+```
+
+If we list the FAT directory again, you will see the file:
+
+```
+E>fat dir 4:
+
+Directory of 4:
+
+01/30/2023  17:50:14         29952  ---A  SAMPLE.TXT
+
+```
+
+Now let's copy the file from the FAT filesystem back to CP/M.  This
+time we will get a warning about overwriting the file.  For this
+example, we don't want to do that, so we abort and reissue the
+command specifying a new filename to use:
+
+```
+E>fat copy 4:sample.txt e:
+
+Copying...
+
+4:/SAMPLE.TXT ==> E:SAMPLE.TXT Overwrite? (Y/N) [Skipped]
+
+    0 File(s) Copied
+
+E>fat copy 4:sample.txt e:sample2.txt
+
+Copying...
+
+4:/SAMPLE.TXT ==> E:SAMPLE2.TXT ... [OK]
+
+    1 File(s) Copied
+```
+
+Finally, let's try using wildcards:
+
+```
+E>fat copy sample*.* 4:
+
+Copying...
+
+SAMPLE.TXT ==> 4:/SAMPLE.TXT Overwrite? (Y/N) ... [OK]
+SAMPLE2.TXT ==> 4:/SAMPLE2.TXT ... [OK]
+
+    2 File(s) Copied
+```
 
 # Customizing RomWBW
 
@@ -3820,7 +4316,7 @@ for more information on UNA.
 
 - The disk images created and distributed with RomWBW do not have the
   correct system track code for UNA.  In order to boot to disk under
-  UNA, you must first use SYSCOPY to update the system track of the
+  UNA, you must first use `SYSCOPY` to update the system track of the
   target disk.  The UNA ROM disk has the correct system track files
   for UNA: `CPM.SYS` and `ZSYS.SYS`.  So, you can boot a ROM OS and
   then use one of these files to update the system track.
@@ -4167,8 +4663,8 @@ please let me know if I missed you!
 
 * Tasty Basic is a product of Dimitri Theulings.
 
-* Dean Netherton contributed the sound driver interface and
-  the SN76489 sound driver.
+* Dean Netherton contributed eZ80 CPU support, the sound driver
+  interface, and the SN76489 sound driver.
 
 * The RomWBW Disk Catalog document was produced by Mykl Orders.
 
@@ -4178,7 +4674,11 @@ please let me know if I missed you!
   compendium.
 
 * Martin R has provided substantial help reviewing and improving the
-  User Guide.
+  User Guide and Applications documents.
+  
+* Mark Pruden has also contributed a great deal of content to the
+  Disk Catalog, User Guide as well as contributing the disk image
+  for the Z3PLUS operating system, and the COPYSL utility.
 
 * Jacques Pelletier has contributed the DS1501 RTC driver code.
 
@@ -4599,7 +5099,7 @@ the RomWBW HBIOS configuration.
 
 `\clearpage`{=latex}
 
-#### ROM Image File:  RCZ80_kio.rom
+#### ROM Image File:  RCZ80_kio_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4642,7 +5142,7 @@ the RomWBW HBIOS configuration.
 
 ### RCBus Z180 CPU Module
 
-#### ROM Image File:  RCZ180_ext.rom
+#### ROM Image File:  RCZ180_ext_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4687,7 +5187,7 @@ the RomWBW HBIOS configuration.
 
 `\clearpage`{=latex}
 
-#### ROM Image File:  RCZ180_nat.rom
+#### ROM Image File:  RCZ180_nat_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4734,7 +5234,7 @@ the RomWBW HBIOS configuration.
 
 ### RCBus Z280 CPU Module
 
-#### ROM Image File:  RCZ280_ext.rom
+#### ROM Image File:  RCZ280_ext_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4777,7 +5277,7 @@ the RomWBW HBIOS configuration.
 
 `\clearpage`{=latex}
 
-#### ROM Image File:  RCZ280_nat.rom
+#### ROM Image File:  RCZ280_nat_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4819,9 +5319,46 @@ the RomWBW HBIOS configuration.
 
 `\clearpage`{=latex}
 
+### RCBus eZ80 CPU Module
+
+#### ROM Image File:  RCEZ80_std.rom
+
+|                   |               |
+|-------------------|---------------|
+| Default CPU Speed | 20.000 MHz    |
+| Interrupts        | Mode 1        |
+| System Timer      | EZ80          |
+| Serial Default    | 115200 Baud   |
+| Memory Manager    | Z2            |
+| ROM Size          | 512 KB        |
+| RAM Size          | 512 KB        |
+
+##### Supported Hardware (see [Appendix B - Device Summary]):
+
+- FP: LEDIO=0, SWIO=0
+- LCD: IO=218
+- CH: IO=62
+- CH: IO=60
+- CHUSB: IO=62
+- CHUSB: IO=60
+- MD: TYPE=RAM
+- MD: TYPE=ROM
+- FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
+- FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
+- IDE: MODE=RC, IO=16, MASTER
+- IDE: MODE=RC, IO=16, SLAVE
+- PPIDE: IO=32, MASTER
+- PPIDE: IO=32, SLAVE
+- CTC: IO=136
+- EZ80 DRIVERS
+
+##### Notes:
+
+`\clearpage`{=latex}
+
 ### Easy Z80 SBC
 
-#### ROM Image File:  RCZ80_easy.rom
+#### ROM Image File:  RCZ80_easy_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4866,7 +5403,7 @@ the RomWBW HBIOS configuration.
 
 ### Tiny Z80 SBC
 
-#### ROM Image File:  RCZ80_tiny.rom
+#### ROM Image File:  RCZ80_tiny_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4910,7 +5447,7 @@ the RomWBW HBIOS configuration.
 
 ### Z80-512K CPU/RAM/ROM Module
 
-#### ROM Image File:  RCZ80_skz.rom
+#### ROM Image File:  RCZ80_skz_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -4955,7 +5492,7 @@ the RomWBW HBIOS configuration.
 
 ### Small Computer SC126 Z180 SBC
 
-#### ROM Image File:  SCZ180_sc126.rom
+#### ROM Image File:  SCZ180_sc126_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5003,7 +5540,7 @@ the RomWBW HBIOS configuration.
 
 ### Small Computer SC130 Z180 SBC
 
-#### ROM Image File:  SCZ180_sc130.rom
+#### ROM Image File:  SCZ180_sc130_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5049,9 +5586,9 @@ the RomWBW HBIOS configuration.
 
 `\clearpage`{=latex}
 
-### Small Computer SC131 Z180 Pocket Computer
+### Small Computer SC131 Z180 Pocket Comp
 
-#### ROM Image File:  SCZ180_sc131.rom
+#### ROM Image File:  SCZ180_sc131_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5078,7 +5615,7 @@ the RomWBW HBIOS configuration.
 
 ### Small Computer SC140 Z180 CPU Module
 
-#### ROM Image File:  SCZ180_sc140.rom
+#### ROM Image File:  SCZ180_sc140_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5125,7 +5662,7 @@ the RomWBW HBIOS configuration.
 
 ### Small Computer SC503 Z180 CPU Module
 
-#### ROM Image File:  SCZ180_sc503.rom
+#### ROM Image File:  SCZ180_sc503_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5172,7 +5709,7 @@ the RomWBW HBIOS configuration.
 
 ### Small Computer SC700 Z180 CPU Module
 
-#### ROM Image File:  SCZ180_sc700.rom
+#### ROM Image File:  SCZ180_sc700_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5201,7 +5738,7 @@ the RomWBW HBIOS configuration.
 - CH: IO=60
 - CHUSB: IO=62
 - CHUSB: IO=60
-S- MD: TYPE=RAM
+- MD: TYPE=RAM
 - MD: TYPE=ROM
 - FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
 - FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
@@ -5332,7 +5869,7 @@ S- MD: TYPE=RAM
 
 ### Z80 ZRC CPU Module
 
-#### ROM Image File:  RCZ80_zrc.rom
+#### ROM Image File:  RCZ80_zrc_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5379,7 +5916,7 @@ S- MD: TYPE=RAM
 
 `\clearpage`{=latex}
 
-#### ROM Image File:  RCZ80_zrc_ram.rom
+#### ROM Image File:  RCZ80_zrc_ram_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5426,7 +5963,7 @@ S- MD: TYPE=RAM
 
 ### Z80 ZRC512 CPU Module
 
-#### ROM Image File:  RCZ80_zrc512.rom
+#### ROM Image File:  RCZ80_zrc512_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5473,7 +6010,7 @@ S- MD: TYPE=RAM
 
 ### Z180 Z1RCC CPU Module
 
-#### ROM Image File:  RCZ180_z1rcc.rom
+#### ROM Image File:  RCZ180_z1rcc_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5519,7 +6056,7 @@ S- MD: TYPE=RAM
 
 ### Z280 ZZRCC CPU Module
 
-#### ROM Image File:  RCZ280_zzrcc.rom
+#### ROM Image File:  RCZ280_zzrcc_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5565,7 +6102,7 @@ S- MD: TYPE=RAM
 
 `\clearpage`{=latex}
 
-#### ROM Image File:  RCZ280_zzrcc_ram.rom
+#### ROM Image File:  RCZ280_zzrcc_ram_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5611,7 +6148,7 @@ S- MD: TYPE=RAM
 
 ### Z280 ZZ80MB SBC
 
-#### ROM Image File:  RCZ280_zz80mb.rom
+#### ROM Image File:  RCZ280_zz80mb_std.rom
 
 |                   |               |
 |-------------------|---------------|
@@ -5879,6 +6416,73 @@ S- MD: TYPE=RAM
 
 `\clearpage`{=latex}
 
+### S100 FPGA Z80
+
+#### ROM Image File:  FZ80_std.rom
+
+|                   |               |
+|-------------------|---------------|
+| Default CPU Speed | 8.000 MHz     |
+| Interrupts        | None          |
+| System Timer      | None          |
+| Serial Default    | 9600 Baud     |
+| Memory Manager    | Z2            |
+| ROM Size          | 0 KB          |
+| RAM Size          | 512 KB        |
+
+##### Supported Hardware (see [Appendix B - Device Summary]):
+
+FP: LEDIO=255
+SSER: IO=52
+SCON: IO=0
+MD: TYPE=RAM
+PPIDE: IO=48, MASTER
+PPIDE: IO=48, SLAVE
+
+
+FP: LEDIO=255
+DS5RTC: RTCIO=104, IO=104
+SSER: IO=52
+SCON: IO=0
+MD: TYPE=RAM
+PPIDE: IO=48, MASTER
+PPIDE: IO=48, SLAVE
+SD: MODE=FZ80, IO=108, UNITS=2
+
+##### Notes:
+
+- Requires matching FPGA code
+
+### Genesis STD Z180
+
+#### ROM Image File:  GMZ180_std.rom
+
+|                   |               |
+|-------------------|---------------|
+| Default CPU Speed | 18.432 MHz    |
+| Interrupts        | Mode 2        |
+| System Timer      | Z180          |
+| Serial Default    | 115200 Baud   |
+| Memory Manager    | Z180          |
+| ROM Size          | 512 KB        |
+| RAM Size          | 512 KB        |
+
+##### Supported Hardware (see [Appendix B - Device Summary]):
+
+DSRTC: MODE=STD, IO=132
+INTRTC: ENABLED
+ASCI: IO=192, INTERRUPTS ENABLED
+ASCI: IO=193, INTERRUPTS ENABLED
+MD: TYPE=RAM
+MD: TYPE=ROM
+IDE: MODE=GIDE, IO=32, MASTER
+IDE: MODE=GIDE, IO=32, SLAVE
+SD: MODE=GM, IO=132, UNITS=1
+
+##### Notes:
+
+- CPU speed will be dynamically measured at startup if DSRTC is present
+
 ## Appendix B - Device Summary
 
 The table below briefly describes each of the possible devices that
@@ -5896,7 +6500,8 @@ may be discovered by RomWBW in your system.
 | CTC       | System   | Zilog Clock/Timer                                      |
 | CVDU      | Video    | MC8563-based Video Display Controller                  |
 | DMA       | System   | Zilog DMA Controller                                   |
-| DS1307    | RTC      | Maxim DS1307 PCF I2C Real-Time Clock w/ NVRAM          |
+| DS5RTC    | RTC      | Maxim DS1305 SPI Real-Time Clock w/ NVRAM              |
+| DS7RTC    | RTC      | Maxim DS1307 PCF I2C Real-Time Clock w/ NVRAM          |
 | DS1501RTC | RTC      | Maxim DS1501/DS1511 Watchdog Real-Time Clock           |
 | DSRTC     | RTC      | Maxim DS1302 Real-Time Clock w/ NVRAM                  |
 | DUART     | Char     | SCC2681 or compatible Dual UART                        |
@@ -5904,6 +6509,7 @@ may be discovered by RomWBW in your system.
 | EMM       | Disk     | Disk drive on Parallel Port emm interface (Zip Drive)  |
 | FD        | Disk     | 8272 or compatible Floppy Disk Controller              |
 | FP        | System   | Simple LED & Switch Front Panel                        |
+| FV        | Video    | S100 FPGA Z80 Onboard VGA/Keyboard                     |
 | GDC       | Video    | uPD7220 Video Display Controller                       |
 | HDSK      | Disk     | SIMH Simulator Hard Disk                               |
 | ICM       | DsKy     | ICM7218-based Display/Keypad on PPI                    |
@@ -5912,6 +6518,7 @@ may be discovered by RomWBW in your system.
 | INTRTC    | RTC      | Interrupt-based Real Time Clock                        |
 | KBD       | Keyboard | 8242 PS/2 Keyboard Controller                          |
 | KIO       | System   | Zilog Serial/ Parallel Counter/Timer                   |
+| LCD       | System   | Hitachi HD44780-based LCD Display                      |
 | LPT       | Char     | Parallel I/O Controller                                |
 | MD        | Disk     | ROM/RAM Disk                                           |
 | MSXKYB    | Keyboard | MSX Compliant Matrix Keyboard                          |
@@ -5936,6 +6543,7 @@ may be discovered by RomWBW in your system.
 | SN76489   | Sound    | SN76489 Programmable Sound Generator                   |
 | SPK       | Sound    | Bit-bang Speaker                                       |
 | SYQ       | Disk     | Iomega SparQ Drive on PPI                              |
+| SSER      | Char     | Simple Serial Interface                                |
 | TMS       | Video    | TMS9918/38/58 Video Display Controller                 |
 | UART      | Char     | 16C550 Family Serial Interface                         |
 | USB-FIFO  | Char     | FT232H-based ECB USB FIFO                              |
diff --git a/Source/FZ80/Bank Layout.txt b/Source/FZ80/Bank Layout.txt
new file mode 100644
index 00000000..e911afb7
--- /dev/null
+++ b/Source/FZ80/Bank Layout.txt	
@@ -0,0 +1,18 @@
+FPGA Z80 has no real ROM.  It has a single 512K RAM chip.
+
+The ROMless startup mode treats the entire 512KB as RAM.  384KB of RAM 
+must be preloaded by the FPGA Monitor CF Loader.  There will be no ROM 
+disk available under RomWBW.  There will be a RAM Disk and it's initial 
+contents will be seeded by the image loaded by the CF Loader.
+
+Bank		Contents	Description
+--------	--------	-----------
+0x0		BIOS		HBIOS Bank (operating)
+0x1		IMG0		ROM Loader, Monitor, ROM OSes
+0x2		IMG1		ROM Applications
+0x3		IMG2		Reserved
+0x4-0xB		RAMD		RAM Disk Banks
+0xC		BUF		OS Buffers (CP/M3)
+0xD		AUX		Aux Bank (CP/M 3, BPBIOS, etc.)
+0xE		USR		User Bank (CP/M TPA, etc.)
+0xF		COM		Common Bank, Upper 32KB
diff --git a/Source/FZ80/Build.cmd b/Source/FZ80/Build.cmd
new file mode 100644
index 00000000..8ca4f6c3
--- /dev/null
+++ b/Source/FZ80/Build.cmd
@@ -0,0 +1,24 @@
+@echo off
+setlocal
+
+set TOOLS=../../Tools
+
+set PATH=%TOOLS%\srecord;%PATH%
+
+for %%f in (..\..\Binary\FZ80_*.rom) do call :build %%~nf
+
+goto :eof
+
+:build
+echo.
+echo Creating %1 disk image...
+echo.
+
+srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 fz80_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x80000 0xE0000 ..\..\Binary\%1.rom -binary -offset 0x80000 -o temp.dat -binary
+move temp.dat ..\..\Binary\%1_hd1k_prefix.dat
+
+copy /b ..\..\Binary\%1_hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\%1_hd1k_combo.img || exit /b
+
+goto :eof
diff --git a/Source/FZ80/Clean.cmd b/Source/FZ80/Clean.cmd
new file mode 100644
index 00000000..fa12c5c7
--- /dev/null
+++ b/Source/FZ80/Clean.cmd
@@ -0,0 +1,3 @@
+@echo off
+setlocal
+
diff --git a/Source/FZ80/FZ80 Disk Layout.txt b/Source/FZ80/FZ80 Disk Layout.txt
new file mode 100644
index 00000000..61f1db1e
--- /dev/null
+++ b/Source/FZ80/FZ80 Disk Layout.txt	
@@ -0,0 +1,19 @@
+FZ80 Disk Prefix Layout
+=======================
+
+---- Bytes ----   --- Sectors ---
+Start   Length    Start   Length    Description
+------- -------   ------- -------   ---------------------------
+0x00000 0x001BE   0       1         Unused
+0x001B8 0x00048                     RomWBW Partition Table
+0x00200 0x1EE00   1       7FE00     Unused
+0x80000 0x60000   1024    768       RomWBW
+0x100000          2048              Start of slices (partition 0x1E)
+
+Notes
+-----
+
+- FPGA Z80 Monitor reads 384KB (RomWBW) from sectors 1024-1791 of CF into first 384KB of physical RAM
+- FPGA Z80 ZRC Monitor maps first 32KB of physical RAM to first 32KB of CPU RAM and starts execution at 0x0000
+
+-- WBW 3:18 PM 6/30/2024
\ No newline at end of file
diff --git a/Source/FZ80/Makefile b/Source/FZ80/Makefile
new file mode 100644
index 00000000..3614280f
--- /dev/null
+++ b/Source/FZ80/Makefile
@@ -0,0 +1,25 @@
+DEST=../../Binary
+
+HD1KIMGS = $(DEST)/hd1k_cpm22.img $(DEST)/hd1k_zsdos.img $(DEST)/hd1k_nzcom.img \
+	$(DEST)/hd1k_cpm3.img $(DEST)/hd1k_zpm3.img $(DEST)/hd1k_ws4.img
+
+ROMS := $(wildcard $(DEST)/FZ80_*.rom)
+ROMS := $(patsubst $(DEST)/%.rom,%,$(ROMS))
+
+OBJECTS := $(patsubst %,%_hd1k_prefix.dat,$(ROMS))
+OBJECTS += $(patsubst %,%_hd1k_combo.img,$(ROMS))
+
+TOOLS = ../../Tools
+
+include $(TOOLS)/Makefile.inc
+
+DIFFPATH = $(DIFFTO)/Binary
+
+%_hd1k_prefix.dat: $(DEST)/%.rom
+	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 fz80_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x80000 0xE0000 $< -binary -offset 0x80000 -o temp.dat -binary
+	mv temp.dat $@
+
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
+	cat $^ > $@
diff --git a/Source/FZ80/fz80_ptbl.bin b/Source/FZ80/fz80_ptbl.bin
new file mode 100644
index 00000000..5e9fc41d
Binary files /dev/null and b/Source/FZ80/fz80_ptbl.bin differ
diff --git a/Source/HBIOS/Bank Layout.txt b/Source/HBIOS/Bank Layout.txt
index a3a40d57..f7f957cb 100644
--- a/Source/HBIOS/Bank Layout.txt	
+++ b/Source/HBIOS/Bank Layout.txt	
@@ -43,8 +43,8 @@ Standard RAM Bank Layout (512K)
 Bank ID         Usage
 -------         ------
 0x80            RomWBW HBIOS
-0x81-0x88       RAM Disk Data (3)
-0x89-0x8B	App Banks (8)
+0x81-0x88       RAM Disk Data (8)
+0x89-0x8B	App Banks (3)
 0x8C		CP/M 3 Buffers
 0x8D            CP/M 3 OS
 0x8E            User TPA
diff --git a/Source/HBIOS/Build.cmd b/Source/HBIOS/Build.cmd
index 4d101a96..88a3c701 100644
--- a/Source/HBIOS/Build.cmd
+++ b/Source/HBIOS/Build.cmd
@@ -72,7 +72,7 @@ copy ..\Fonts\font*.asm . || exit /b
 
 tasm -t%CPUType% -g3 -dROMBOOT hbios.asm hbios_rom.bin hbios_rom.lst || exit /b
 tasm -t%CPUType% -g3 -dAPPBOOT hbios.asm hbios_app.bin hbios_app.lst || exit /b
-tasm -t%CPUType% -g3 -dIMGBOOT hbios.asm hbios_img.bin hbios_img.lst || exit /b
+::tasm -t%CPUType% -g3 -dIMGBOOT hbios.asm hbios_img.bin hbios_img.lst || exit /b
 
 ::
 :: Build ROM Components
@@ -89,6 +89,11 @@ call :asm usrrom || exit /b
 call :asm updater || exit /b
 call :asm imgpad2 || exit /b
 
+::
+:: Build components in Sub folders
+::
+pushd SysConfig && call Build || exit /b & popd
+
 ::
 :: Create additional ROM bank images by assembling components into
 :: 32K chunks which can be concatenated later.  Note that
@@ -97,7 +102,7 @@ call :asm imgpad2 || exit /b
 ::
 
 copy /b romldr.bin + dbgmon.bin + ..\zsdos\zsys_wbw.bin + ..\cpm22\cpm_wbw.bin osimg.bin || exit /b
-copy /b ..\Forth\camel80.bin + nascom.bin + ..\tastybasic\src\tastybasic.bin + game.bin + eastaegg.bin + netboot.mod + updater.bin + usrrom.bin osimg1.bin || exit /b
+copy /b ..\Forth\camel80.bin + nascom.bin + ..\tastybasic\src\tastybasic.bin + game.bin + eastaegg.bin + netboot.mod + updater.bin + SysConfig\sysconfig.bin + usrrom.bin osimg1.bin || exit /b
 
 if %Platform%==S100 (
     zxcc slr180 -s100mon/fh
@@ -204,45 +209,45 @@ goto :eof
 :dist
 
 call Build SBC std || exit /b
-call Build SBC simh || exit /b
+call Build SBC simh_std || exit /b
 call Build MBC std || exit /b
 call Build ZETA std || exit /b
 call Build ZETA2 std || exit /b
 call Build N8 std || exit /b
 call Build MK4 std || exit /b
 call Build RCZ80 std || exit /b
-call Build RCZ80 kio || exit /b
-call Build RCZ80 easy || exit /b
-call Build RCZ80 tiny || exit /b
-call Build RCZ80 skz || exit /b
-:: call Build RCZ80 mt || exit /b
-:: call Build RCZ80 duart || exit /b
-call Build RCZ80 zrc || exit /b
-call Build RCZ80 zrc_ram || exit /b
-call Build RCZ80 zrc512 || exit /b
-call Build RCZ180 ext || exit /b
-call Build RCZ180 nat || exit /b
-call Build RCZ180 z1rcc || exit /b
-call Build RCZ280 ext || exit /b
-call Build RCZ280 nat || exit /b
-call Build RCZ280 zz80mb || exit /b
-call Build RCZ280 zzrcc || exit /b
-call Build RCZ280 zzrcc_ram || exit /b
-call Build SCZ180 sc126 || exit /b
-call Build SCZ180 sc130 || exit /b
-call Build SCZ180 sc131 || exit /b
-call Build SCZ180 sc140 || exit /b
-call Build SCZ180 sc503 || exit /b
-call Build SCZ180 sc700 || exit /b
+call Build RCZ80 kio_std || exit /b
+call Build RCZ80 easy_std || exit /b
+call Build RCZ80 tiny_std || exit /b
+call Build RCZ80 skz_std || exit /b
+call Build RCZ80 zrc_std || exit /b
+call Build RCZ80 zrc_ram_std || exit /b
+call Build RCZ80 zrc512_std || exit /b
+call Build RCZ180 ext_std || exit /b
+call Build RCZ180 nat_std || exit /b
+call Build RCZ180 z1rcc_std || exit /b
+call Build RCZ280 ext_std || exit /b
+call Build RCZ280 nat_std || exit /b
+call Build RCZ280 zz80mb_std || exit /b
+call Build RCZ280 zzrcc_std || exit /b
+call Build RCZ280 zzrcc_ram_std || exit /b
+call Build SCZ180 sc126_std || exit /b
+call Build SCZ180 sc130_std || exit /b
+call Build SCZ180 sc131_std || exit /b
+call Build SCZ180 sc140_std || exit /b
+call Build SCZ180 sc503_std || exit /b
+call Build SCZ180 sc700_std || exit /b
+call Build GMZ180 std || exit /b
 call Build DYNO std || exit /b
-call Build UNA std || exit /b
 call Build RPH std || exit /b
 call Build Z80RETRO std || exit /b
 call Build S100 std || exit /b
 call Build DUO std || exit /b
 call Build HEATH std || exit /b
 call Build EPITX std || exit /b
-call Build NABU std || exit /b
 :: call Build MON std || exit /b
+call Build NABU std || exit /b
+call Build FZ80 std || exit /b
+call Build UNA std || exit /b
 
 goto :eof
diff --git a/Source/HBIOS/Build.ps1 b/Source/HBIOS/Build.ps1
index ec8bf51d..9e390302 100644
--- a/Source/HBIOS/Build.ps1
+++ b/Source/HBIOS/Build.ps1
@@ -27,8 +27,8 @@ $ErrorAction = 'Stop'
 # UNA BIOS is simply imbedded, it is not built here.
 #
 
-$PlatformListZ80 = "SBC", "MBC", "ZETA", "ZETA2", "RCZ80", "Z80RETRO", "DUO", "UNA", "HEATH", "MON", "NABU"
-$PlatformListZ180 = "N8", "MK4", "RCZ180", "SCZ180", "DYNO", "RPH", "S100", "EPITX"
+$PlatformListZ80 = "SBC", "MBC", "ZETA", "ZETA2", "RCZ80", "Z80RETRO", "DUO", "UNA", "HEATH", "MON", "NABU", "FZ80", "RCEZ80"
+$PlatformListZ180 = "N8", "MK4", "RCZ180", "SCZ180", "DYNO", "RPH", "S100", "EPITX", "GMZ180"
 $PlatformListZ280 = "RCZ280"
 
 #
diff --git a/Source/HBIOS/Build.sh b/Source/HBIOS/Build.sh
index 892640d0..1684d8d5 100755
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@@ -11,47 +11,47 @@ export CPUFAM
 
 if [ "${ROM_PLATFORM}" == "dist" ] ; then
 	echo "!!!DISTRIBUTION BUILD!!!"
-	ROM_PLATFORM="DYNO"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="MK4"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="N8"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="RCZ180"; ROM_CONFIG="ext"; bash Build.sh
-	ROM_PLATFORM="RCZ180"; ROM_CONFIG="nat"; bash Build.sh
-	ROM_PLATFORM="RCZ180"; ROM_CONFIG="z1rcc"; bash Build.sh
-	ROM_PLATFORM="RCZ280"; ROM_CONFIG="ext"; bash Build.sh
-	ROM_PLATFORM="RCZ280"; ROM_CONFIG="nat"; bash Build.sh
-	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zz80mb"; bash Build.sh
-	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zzrcc"; bash Build.sh
-	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zzrcc_ram"; bash Build.sh
-#	ROM_PLATFORM="RCZ80"; ROM_CONFIG="mt"; bash Build.sh
-#	ROM_PLATFORM="RCZ80"; ROM_CONFIG="duart"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="kio"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="easy"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="tiny"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="skz"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc_ram"; bash Build.sh
-	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc512"; bash Build.sh
-	ROM_PLATFORM="RPH"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="SBC"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="SBC"; ROM_CONFIG="simh"; bash Build.sh
+	ROM_PLATFORM="SBC"; ROM_CONFIG="simh_std"; bash Build.sh
 	ROM_PLATFORM="MBC"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="DUO"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc126"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc130"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc131"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc140"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc503"; bash Build.sh
-	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc700"; bash Build.sh
-	ROM_PLATFORM="S100"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="UNA"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="Z80RETRO"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="ZETA"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="ZETA2"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="N8"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="MK4"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="kio_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="easy_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="tiny_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="skz_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc_ram_std"; bash Build.sh
+	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc512_std"; bash Build.sh
+	ROM_PLATFORM="RCZ180"; ROM_CONFIG="ext_std"; bash Build.sh
+	ROM_PLATFORM="RCZ180"; ROM_CONFIG="nat_std"; bash Build.sh
+	ROM_PLATFORM="RCZ180"; ROM_CONFIG="z1rcc_std"; bash Build.sh
+	ROM_PLATFORM="RCZ280"; ROM_CONFIG="ext_std"; bash Build.sh
+	ROM_PLATFORM="RCZ280"; ROM_CONFIG="nat_std"; bash Build.sh
+	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zz80mb_std"; bash Build.sh
+	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zzrcc_std"; bash Build.sh
+	ROM_PLATFORM="RCZ280"; ROM_CONFIG="zzrcc_ram_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc126_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc130_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc131_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc140_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc503_std"; bash Build.sh
+	ROM_PLATFORM="SCZ180"; ROM_CONFIG="sc700_std"; bash Build.sh
+	ROM_PLATFORM="GMZ180"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="DYNO"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="RPH"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="Z80RETRO"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="S100"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="DUO"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="HEATH"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="EPITX"; ROM_CONFIG="std"; bash Build.sh
-	ROM_PLATFORM="NABU"; ROM_CONFIG="std"; bash Build.sh
 #	ROM_PLATFORM="MON"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="NABU"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="FZ80"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="UNA"; ROM_CONFIG="std"; bash Build.sh
 	exit
 fi
 
diff --git a/Source/HBIOS/Clean.cmd b/Source/HBIOS/Clean.cmd
index a291a724..94b8d008 100644
--- a/Source/HBIOS/Clean.cmd
+++ b/Source/HBIOS/Clean.cmd
@@ -16,3 +16,5 @@ if exist build.inc del build.inc
 if exist font*.asm del font*.asm
 if exist build_env.cmd del build_env.cmd
 if exist hbios_env.cmd del hbios_env.cmd
+
+pushd SysConfig && call Clean & popd
diff --git a/Source/HBIOS/Config/DUO_std.asm b/Source/HBIOS/Config/DUO_std.asm
index f6e91f0b..2078b07e 100644
--- a/Source/HBIOS/Config/DUO_std.asm
+++ b/Source/HBIOS/Config/DUO_std.asm
@@ -1,51 +1,66 @@
 ;
 ;==================================================================================================
-;   DUODYNE STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR DUODYNE
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
 ;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
 ;
-#include "cfg_duo.asm"
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
 ;
-CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
 ;
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
 ;
-DMAENABLE	.SET	TRUE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_DUO.asm"
 ;
 BATCOND		.SET	TRUE		; ENABLE LOW BATTERY WARNING MESSAGE
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
-ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
 RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ;
 PCFENABLE	.SET	TRUE		; ENABLE PCF8584 I2C CONTROLLER
 ;
-MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-;
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
 ;
 CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
 ;
-ESPENABLE	.SET	FALSE 		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+DMAENABLE	.SET	TRUE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
diff --git a/Source/HBIOS/Config/DYNO_std.asm b/Source/HBIOS/Config/DYNO_std.asm
index bc4b677d..91e72918 100644
--- a/Source/HBIOS/Config/DYNO_std.asm
+++ b/Source/HBIOS/Config/DYNO_std.asm
@@ -1,37 +1,57 @@
 ;
 ;==================================================================================================
-;   DYNO STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR DYNO
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_dyno.asm"
+#INCLUDE "cfg_DYNO.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 ;
diff --git a/Source/HBIOS/Config/EPITX_std.asm b/Source/HBIOS/Config/EPITX_std.asm
index 62dc73e7..b5f9f8fa 100644
--- a/Source/HBIOS/Config/EPITX_std.asm
+++ b/Source/HBIOS/Config/EPITX_std.asm
@@ -1,34 +1,52 @@
 ;
 ;==================================================================================================
-;   Z180 Mini ITX STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR Z180 MINI ITX
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	PLATFORM_NAME	"Z180 MiniITX"
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_epitx.asm"
-;
-CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+#INCLUDE "cfg_EPITX.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
 ;
@@ -36,9 +54,8 @@ Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
-HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-;
-LEDENABLE	.SET	FALSE		; ENABLE STATUS LED (SINGLE LED)
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
@@ -50,10 +67,8 @@ SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 ;
 TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 ;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-FDMODE		.SET	FDMODE_EPFDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|DIDE|N8|DIO3]
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_EPFDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
 ;
@@ -62,3 +77,4 @@ PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM
 SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
 ;
 PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/FZ80_std.asm b/Source/HBIOS/Config/FZ80_std.asm
new file mode 100644
index 00000000..baf75793
--- /dev/null
+++ b/Source/HBIOS/Config/FZ80_std.asm
@@ -0,0 +1,50 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR S100 FPGA Z80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_FZ80.asm"
+;
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
diff --git a/Source/HBIOS/Config/GMZ180_std.asm b/Source/HBIOS/Config/GMZ180_std.asm
new file mode 100644
index 00000000..eef7023c
--- /dev/null
+++ b/Source/HBIOS/Config/GMZ180_std.asm
@@ -0,0 +1,90 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR GENESIS STD Z180
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "GM STD BUS Z180", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_GMZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_GM	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/HEATH_std.asm b/Source/HBIOS/Config/HEATH_std.asm
index 4ca7f5b9..1f4cd3c8 100644
--- a/Source/HBIOS/Config/HEATH_std.asm
+++ b/Source/HBIOS/Config/HEATH_std.asm
@@ -1,69 +1,47 @@
 ;
 ;==================================================================================================
-;   HEATH H8 Z80 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR HEATH H8 Z80
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
 ;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-DSKYENABLE	.SET	TRUE		; ENABLES DSKY FUNCTIONALITY
-H8PENABLE	.SET	TRUE		; ENABLES HEATH H8 FRONT PANEL
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
 ;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
 ;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
 ;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
 ;
-LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+#INCLUDE "cfg_HEATH.asm"
diff --git a/Source/HBIOS/Config/MBC_std.asm b/Source/HBIOS/Config/MBC_std.asm
index 9ae980c8..b12d382e 100644
--- a/Source/HBIOS/Config/MBC_std.asm
+++ b/Source/HBIOS/Config/MBC_std.asm
@@ -1,59 +1,75 @@
 ;
 ;==================================================================================================
-;   MBC CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR NHYODYNE
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
 ;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
 ;
-#include "cfg_mbc.asm"
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
 ;
-CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
 ;
-INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
 ;
-DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
-BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_MBC.asm"
 ;
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
 CPUSPDDEF	.SET	SPD_LOW		; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
-ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
 RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-;
-MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ;
 DSKYENABLE	.SET	TRUE		; ENABLES DSKY FUNCTIONALITY
 ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
 PKDENABLE	.SET	TRUE		; ENABLES DSKY NG PKD DRIVER (8259)
 ;
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
 ;
-ESPENABLE	.SET	TRUE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
 LPTENABLE	.SET	TRUE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
 ;
 CVDUMON		.SET	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
 ;
 PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+ESPENABLE	.SET	TRUE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
diff --git a/Source/HBIOS/Config/MK4_std.asm b/Source/HBIOS/Config/MK4_std.asm
index a37a7f87..8ec298e6 100644
--- a/Source/HBIOS/Config/MK4_std.asm
+++ b/Source/HBIOS/Config/MK4_std.asm
@@ -1,57 +1,74 @@
 ;
 ;==================================================================================================
-;   MARK IV STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR MARK IV
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_mk4.asm"
+#INCLUDE "cfg_MK4.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTCAS		.SET	TRUE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.SET	TRUE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.SET	TRUE		; UART: AUTO-DETECT 4UART UART
 SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 ;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
 CVDUENABLE	.SET	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 VGAENABLE	.SET	TRUE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
+FDMODE		.SET	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC]
+SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
 ;
 PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/MON_std.asm b/Source/HBIOS/Config/MON_std.asm
index 5a9ca047..b7b19578 100644
--- a/Source/HBIOS/Config/MON_std.asm
+++ b/Source/HBIOS/Config/MON_std.asm
@@ -1,30 +1,50 @@
 ;
 ;==================================================================================================
-;   MONSPUTER Z80 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR MONSPUTER Z80
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_mon.asm"
+#INCLUDE "cfg_MON.asm"
 ;
 CPUOSC		.SET	4000000		; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
diff --git a/Source/HBIOS/Config/N8_std.asm b/Source/HBIOS/Config/N8_std.asm
index 9c632cdb..d0a7215e 100644
--- a/Source/HBIOS/Config/N8_std.asm
+++ b/Source/HBIOS/Config/N8_std.asm
@@ -1,44 +1,65 @@
 ;
 ;==================================================================================================
-;   N8 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR N8
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_n8.asm"
+#INCLUDE "cfg_N8.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
 ;
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDMODE		.SET	SDMODE_CSIO	; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
 ;
-AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+;
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/NABU_std.asm b/Source/HBIOS/Config/NABU_std.asm
index 8731dc6a..6a5c40a5 100644
--- a/Source/HBIOS/Config/NABU_std.asm
+++ b/Source/HBIOS/Config/NABU_std.asm
@@ -1,32 +1,51 @@
 ;
 ;==================================================================================================
-;   NABU Z80 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR NABU Z80
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_nabu.asm"
+#INCLUDE "cfg_NABU.asm"
 ;
 CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
-TMSMODE		.SET	TMSMODE_NABU80	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-
+TMS80COLS	.SET	TRUE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
diff --git a/Source/HBIOS/Config/RCEZ80_std.asm b/Source/HBIOS/Config/RCEZ80_std.asm
new file mode 100644
index 00000000..ecebca31
--- /dev/null
+++ b/Source/HBIOS/Config/RCEZ80_std.asm
@@ -0,0 +1,82 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS EZ80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCEZ80.asm"
+;
+CPUOSC		.SET	20000000	; CPU OSC FREQ IN MHZ
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ180_ext.asm b/Source/HBIOS/Config/RCZ180_ext.asm
deleted file mode 100644
index 3f8c7744..00000000
--- a/Source/HBIOS/Config/RCZ180_ext.asm
+++ /dev/null
@@ -1,69 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z180 STANDARD CONFIGURATION (EXTERNAL MMU ON 512K RAM/ROM BANKED MEMORY MODULE)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ180_ext_std.asm b/Source/HBIOS/Config/RCZ180_ext_std.asm
new file mode 100644
index 00000000..76d9d400
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ180_ext_std.asm
@@ -0,0 +1,88 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z180 W/ EXTERNAL Z2 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ180_nat.asm b/Source/HBIOS/Config/RCZ180_nat.asm
deleted file mode 100644
index d8bd155b..00000000
--- a/Source/HBIOS/Config/RCZ180_nat.asm
+++ /dev/null
@@ -1,68 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z180 STANDARD CONFIGURATION (NATIVE Z180 MMU W/ LINEAR MEMORY MODULE)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ180_nat_std.asm b/Source/HBIOS/Config/RCZ180_nat_std.asm
new file mode 100644
index 00000000..aa985d40
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ180_nat_std.asm
@@ -0,0 +1,88 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z180 W/ NATIVE Z180 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ180_z1rcc.asm b/Source/HBIOS/Config/RCZ180_z1rcc.asm
deleted file mode 100644
index 5556b6ac..00000000
--- a/Source/HBIOS/Config/RCZ180_z1rcc.asm
+++ /dev/null
@@ -1,77 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z180 Z1RCC CONFIGURATION (ROMLESS)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Z1RCC", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
-MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ180_z1rcc_std.asm b/Source/HBIOS/Config/RCZ180_z1rcc_std.asm
new file mode 100644
index 00000000..89707e10
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ180_z1rcc_std.asm
@@ -0,0 +1,96 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z180 ROMLESS Z1RCC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Z1RCC", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ280_ext.asm b/Source/HBIOS/Config/RCZ280_ext.asm
deleted file mode 100644
index 035b37a1..00000000
--- a/Source/HBIOS/Config/RCZ280_ext.asm
+++ /dev/null
@@ -1,67 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z280 STANDARD CONFIGURATION (EXTERNAL MMU ON 512K RAM/ROM BANKED MEMORY MODULE)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz280.asm"
-;
-CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
-;
-Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ280_ext_std.asm b/Source/HBIOS/Config/RCZ280_ext_std.asm
new file mode 100644
index 00000000..ddf384a4
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ280_ext_std.asm
@@ -0,0 +1,87 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z280 W/ EXTERNAL Z2 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ280.asm"
+;
+CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ280_nat.asm b/Source/HBIOS/Config/RCZ280_nat.asm
deleted file mode 100644
index 2d74551c..00000000
--- a/Source/HBIOS/Config/RCZ280_nat.asm
+++ /dev/null
@@ -1,67 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z280 STANDARD CONFIGURATION (NATIVE Z280 MMU W/ LINEAR MEMORY)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz280.asm"
-;
-CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
-;
-Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
-;
-Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ280_nat_std.asm b/Source/HBIOS/Config/RCZ280_nat_std.asm
new file mode 100644
index 00000000..8d19c52e
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ280_nat_std.asm
@@ -0,0 +1,88 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z280 W/ NATIVE Z280 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ280.asm"
+;
+CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ280_zz80mb.asm b/Source/HBIOS/Config/RCZ280_zz80mb.asm
deleted file mode 100644
index 7a54bc23..00000000
--- a/Source/HBIOS/Config/RCZ280_zz80mb.asm
+++ /dev/null
@@ -1,72 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z280 STANDARD CONFIGURATION (NATIVE Z280 MMU W/ LINEAR MEMORY ON ZZ80MB)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZZ80MB", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz280.asm"
-;
-CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
-;
-RAMBIAS		.SET	8192		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
-;
-Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-Z2U0HFC		.SET	TRUE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ280_zz80mb_std.asm b/Source/HBIOS/Config/RCZ280_zz80mb_std.asm
new file mode 100644
index 00000000..31a17a72
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ280_zz80mb_std.asm
@@ -0,0 +1,91 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS ZZ80MB Z280 W/ NATIVE Z280 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZZ80MB", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ280.asm"
+;
+CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	8192		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+Z2U0HFC		.SET	TRUE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ280_zzrcc.asm b/Source/HBIOS/Config/RCZ280_zzrcc.asm
deleted file mode 100644
index db8067b8..00000000
--- a/Source/HBIOS/Config/RCZ280_zzrcc.asm
+++ /dev/null
@@ -1,78 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z280 ZZRCC CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZZRCC", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz280.asm"
-;
-CPUOSC		.SET	29491200	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
-;
-RAMSIZE		.SET	256		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	256		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
-;
-MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
-;
-Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-Z2UOSC		.SET	(CPUOSC / 16)	; Z2U: OSC FREQUENCY IN MHZ
-Z2U0HFC		.SET	TRUE		; Z2U0: ENABLE HARDWARE FLOW CONTROL
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm b/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm
deleted file mode 100644
index 957535d2..00000000
--- a/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm
+++ /dev/null
@@ -1,78 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z280 ZZRCC CONFIGURATION (ROMLESS)
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZZRCC", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz280.asm"
-;
-CPUOSC		.SET	29491200	; CPU OSC FREQ IN MHZ
-INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
-;
-RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
-;
-MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
-MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
-;
-Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-Z2UOSC		.SET	(CPUOSC / 16)	; Z2U: OSC FREQUENCY IN MHZ
-Z2U0HFC		.SET	TRUE		; Z2U0: ENABLE HARDWARE FLOW CONTROL
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ280_zzrcc_ram_std.asm b/Source/HBIOS/Config/RCZ280_zzrcc_ram_std.asm
new file mode 100644
index 00000000..99ee7dc1
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ280_zzrcc_ram_std.asm
@@ -0,0 +1,99 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z280 ROMLESS ZZRCC W/ NATIVE Z280 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZZRCC", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ280.asm"
+;
+CPUOSC		.SET	29491200	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+Z2UOSC		.SET	(CPUOSC / 16)	; Z2U: OSC FREQUENCY IN MHZ
+Z2U0HFC		.SET	TRUE		; Z2U0: ENABLE HARDWARE FLOW CONTROL
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ280_zzrcc_std.asm b/Source/HBIOS/Config/RCZ280_zzrcc_std.asm
new file mode 100644
index 00000000..d7a6bec0
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ280_zzrcc_std.asm
@@ -0,0 +1,100 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z280 ZZRCC W/ NATIVE Z280 MMU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZZRCC", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ280.asm"
+;
+CPUOSC		.SET	29491200	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+RAMSIZE		.SET	256		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	256		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+Z2UENABLE	.SET	TRUE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+Z2UOSC		.SET	(CPUOSC / 16)	; Z2U: OSC FREQUENCY IN MHZ
+Z2U0HFC		.SET	TRUE		; Z2U0: ENABLE HARDWARE FLOW CONTROL
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_easy.asm b/Source/HBIOS/Config/RCZ80_easy.asm
deleted file mode 100644
index ae6a1d8b..00000000
--- a/Source/HBIOS/Config/RCZ80_easy.asm
+++ /dev/null
@@ -1,82 +0,0 @@
-;
-;==================================================================================================
-;   EASY Z80 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Easy-Z80", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-PLATFORM	.SET	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
-CPUOSC		.SET	10000000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP]
-SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_easy_std.asm b/Source/HBIOS/Config/RCZ80_easy_std.asm
new file mode 100644
index 00000000..d77c57dc
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_easy_std.asm
@@ -0,0 +1,105 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR EASY Z80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Easy-Z80", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+PLATFORM	.SET	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+;
+CPUOSC		.SET	10000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
+WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP]
+SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_jbl.asm b/Source/HBIOS/Config/RCZ80_jbl.asm
deleted file mode 100644
index e43b54a8..00000000
--- a/Source/HBIOS/Config/RCZ80_jbl.asm
+++ /dev/null
@@ -1,80 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 COLECOVISION-COMPATIBLE CONFIGURATION FOR J.B. LANGSTON'S GAME BOARDS
-;==================================================================================================
-;
-; THIS CONFIGURATION ENABLES DRIVERS FOR THE TMS9918 AND SN76489 BOARDS BY J.B. LANGSTON
-; AND THE YM2149 BOARD BY ED BRINDLEY. THE TMS9918 IS CONFIGURED TO USE THE COLECOVISION
-; PORTS AND HAS INTERRUPTS DISABLED BECAUSE COLECOVISION USES NMI, WHICH WOULD BREAK CP/M
-; WHEN ENABLED. IT IS CONFIGURED FOR A 3.686MHZ CPU CLOCK IN ORDER TO BE COMPATIBLE WITH
-; COLECOVISION GAMES. THE FIRST SIO PORT IS CONFIGURED TO RUN AT 115200 BPS WITH THE CPU
-; RUNNING AT THIS SPEED. THE SECOND SIO PORT IS CONFIGURED TO RUN AT 115200 BPS WITH THE
-; SECOND CLOCK SET TO 7.373MHZ. LOWER BAUD RATES CAN BE ACHIEVED ON THE SECOND PORT BY
-; MOVING THE SECONDARY CLOCK DIVIDER JUMPER (E.G., 38400 @ 2.458MHZ). THE BAUD RATE DOES
-; NOT NEED TO BE CHANGED IN THIS CONFIGURATION FILE IN ORDER TO DO THIS, BUT THE DEVICE
-; LIST WILL INCORRECTLY SHOW THE PORT RUNNING AT 115200 REGARDLESS OF THE CLOCK DIVIDER.
-; UNCOMMENT THE LINE THAT SETS BOOTCON TO 1 TO BOOT ON THE SECOND SIO PORT BY DEFAULT.
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"Z"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	3686400		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;BOOTCON         .SET    1               ; BOOT CONSOLE DEVICE
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP]
-SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_COLECO	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	1		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	TRUE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_jbl_std.asm b/Source/HBIOS/Config/RCZ80_jbl_std.asm
new file mode 100644
index 00000000..1e84ef5b
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_jbl_std.asm
@@ -0,0 +1,104 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 W/ JBL GAME BOARDS
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+; NOTES:
+;
+; THIS CONFIGURATION ENABLES DRIVERS FOR THE TMS9918 AND SN76489 BOARDS BY J.B. LANGSTON
+; AND THE YM2149 BOARD BY ED BRINDLEY. THE TMS9918 IS CONFIGURED TO USE THE COLECOVISION
+; PORTS AND HAS INTERRUPTS DISABLED BECAUSE COLECOVISION USES NMI, WHICH WOULD BREAK CP/M
+; WHEN ENABLED. IT IS CONFIGURED FOR A 3.686MHZ CPU CLOCK IN ORDER TO BE COMPATIBLE WITH
+; COLECOVISION GAMES. THE FIRST SIO PORT IS CONFIGURED TO RUN AT 115200 BPS WITH THE CPU
+; RUNNING AT THIS SPEED. THE SECOND SIO PORT IS CONFIGURED TO RUN AT 115200 BPS WITH THE
+; SECOND CLOCK SET TO 7.373MHZ. LOWER BAUD RATES CAN BE ACHIEVED ON THE SECOND PORT BY
+; MOVING THE SECONDARY CLOCK DIVIDER JUMPER (E.G., 38400 @ 2.458MHZ). THE BAUD RATE DOES
+; NOT NEED TO BE CHANGED IN THIS CONFIGURATION FILE IN ORDER TO DO THIS, BUT THE DEVICE
+; LIST WILL INCORRECTLY SHOW THE PORT RUNNING AT 115200 REGARDLESS OF THE CLOCK DIVIDER.
+; UNCOMMENT THE LINE THAT SETS BOOTCON TO 1 TO BOOT ON THE SECOND SIO PORT BY DEFAULT.
+;
+; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
+; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
+; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
+; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
+; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
+; YOUR FILE IN THE BUILD PROCESS.
+;
+#DEFINE	BOOT_DEFAULT	"Z"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "Config/RCZ80_std.asm"
+;
+CPUOSC		.SET	3686400		; CPU OSC FREQ IN MHZ
+;
+VDAEMU_SERKBD	.SET	1		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_COLECO	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SN76489ENABLE	.SET	TRUE		; SN: ENABLE SN76489 SOUND DRIVER
+;
+AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
diff --git a/Source/HBIOS/Config/RCZ80_kio.asm b/Source/HBIOS/Config/RCZ80_kio.asm
deleted file mode 100644
index df822ed8..00000000
--- a/Source/HBIOS/Config/RCZ80_kio.asm
+++ /dev/null
@@ -1,78 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 STANDARD CONFIGURATION W/ KIO
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-KIOENABLE	.SET	TRUE		; ENABLE ZILOG KIO SUPPORT
-;
-CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCBASE		.SET	KIOBASE+$04	; CTC BASE I/O ADDRESS
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP]
-SIO0BASE	.SET	KIOBASE+$08	; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACTCC	.SET	0		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCTCC	.SET	1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_kio_std.asm b/Source/HBIOS/Config/RCZ80_kio_std.asm
new file mode 100644
index 00000000..f2fea1fb
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_kio_std.asm
@@ -0,0 +1,65 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 W/ KIO
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "Config/RCZ80_std.asm"
+;
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+KIOENABLE	.SET	TRUE		; ENABLE ZILOG KIO SUPPORT
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCBASE		.SET	KIOBASE+$04	; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	KIOBASE+$08	; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACTCC	.SET	0		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCTCC	.SET	1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
diff --git a/Source/HBIOS/Config/RCZ80_skz.asm b/Source/HBIOS/Config/RCZ80_skz.asm
deleted file mode 100644
index b2b804c6..00000000
--- a/Source/HBIOS/Config/RCZ80_skz.asm
+++ /dev/null
@@ -1,73 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 STANDARD CONFIGURATION W/ SERGEY KISELEV Z80 + 512K CPU
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-SKZENABLE	.SET	TRUE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.SET	DIV_12		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-WDOGMODE	.SET	WDOG_SKZ	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
-LEDPORT		.SET	$6E		; STATUS LED PORT ADDRESS
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIO0BCLK	.SET	CPUOSC / 12	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.SET	SER_38400_8N1	; SIO 0B: SERIAL LINE CONFIG
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_skz_std.asm b/Source/HBIOS/Config/RCZ80_skz_std.asm
new file mode 100644
index 00000000..b7911fd8
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_skz_std.asm
@@ -0,0 +1,90 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 W/ SERGEY KISELEL Z80+512K CPU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
+;
+SKZENABLE	.SET	TRUE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_12		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+WDOGMODE	.SET	WDOG_SKZ	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDPORT		.SET	$6E		; STATUS LED PORT ADDRESS
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIO0BCLK	.SET	CPUOSC / 12	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_38400_8N1	; SIO 0B: SERIAL LINE CONFIG
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_std.asm b/Source/HBIOS/Config/RCZ80_std.asm
index 13689758..9b9fa20f 100644
--- a/Source/HBIOS/Config/RCZ80_std.asm
+++ b/Source/HBIOS/Config/RCZ80_std.asm
@@ -1,67 +1,91 @@
 ;
 ;==================================================================================================
-;   RCBUS Z80 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_rcz80.asm"
+#INCLUDE "cfg_RCZ80.asm"
 ;
 CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
 FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
 ;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
 UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
 ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
 SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
 ;
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
 VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
 PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
 ;
 PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_tiny.asm b/Source/HBIOS/Config/RCZ80_tiny.asm
deleted file mode 100644
index 81935820..00000000
--- a/Source/HBIOS/Config/RCZ80_tiny.asm
+++ /dev/null
@@ -1,88 +0,0 @@
-;
-;==================================================================================================
-;   TINY Z80 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Tiny-Z80", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-PLATFORM	.SET	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
-CPUOSC		.SET	16000000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-EIPCENABLE	.SET	TRUE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
-;
-LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
-LEDPORT		.SET	$6E		; STATUS LED PORT ADDRESS
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCBASE		.SET	$10		; CTC BASE I/O ADDRESS
-CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP]
-SIO0BASE	.SET	$18		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_tiny_std.asm b/Source/HBIOS/Config/RCZ80_tiny_std.asm
new file mode 100644
index 00000000..d03c28be
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_tiny_std.asm
@@ -0,0 +1,108 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR TINY Z80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Tiny-Z80", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+PLATFORM	.SET	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+;
+CPUOSC		.SET	16000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCBASE		.SET	$10		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
+EIPCENABLE	.SET	TRUE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDPORT		.SET	$6E		; STATUS LED PORT ADDRESS
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIO0MODE	.SET	SIOMODE_STD	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$18		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	1843200		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCLK	.SET	1843200		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_user.asm b/Source/HBIOS/Config/RCZ80_user.asm
new file mode 100644
index 00000000..9966f297
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_user.asm
@@ -0,0 +1,57 @@
+;
+;==================================================================================================
+;   ROMWBW CUSTOM USER BUILD SETTINGS EXAMPLE FOR RCBUS Z80
+;==================================================================================================
+;
+; THIS FILE IS AN EXAMPLE OF A CUSTOM USER SETTINGS FILE.  THESE
+; SETTINGS OVERRIDE THE DEFAULT SETTINGS OF THE INHERITED FILES AS
+; DESIRED BY A USER.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; THIS FILE EXEMPLIFIES THE IDEAL WAY TO CREATE A USER SPECIFIC BUILD
+; CONFIGURATION.  NOTICE THAT IT INCLUDES THE DEFAULT BUILD SETTINGS
+; FILE AND OVERRIDES SOME DESIRED SETTINGS.
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+; THIS EXAMPLE CUSTOM USER SETTINGS FILE DOES THE FOLLOWING:
+;
+; 1. SETS A CUSTOM NAME USED IN THE BOOT LOADER BANNER
+; 2. BOOTS ZSDOS BY DEFAULT AFTER 10 SECOND DELAY
+; 3. ENABLES LPT PRINTER SUPPORT
+;
+#DEFINE PLATFORM_NAME "My Custom RCBus Computer", " [", CONFIG, "]"
+#DEFINE	BOOT_DEFAULT "Z"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "Config/RCZ80_std.asm"		; INHERIT FROM OFFICIAL BUILD SETTINGS
+;
+BOOT_TIMEOUT	.SET	10		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+;
+LPTENABLE	.SET	TRUE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_zrc.asm b/Source/HBIOS/Config/RCZ80_zrc.asm
deleted file mode 100644
index 35770df3..00000000
--- a/Source/HBIOS/Config/RCZ80_zrc.asm
+++ /dev/null
@@ -1,67 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 ZRC CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZRC", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-RAMSIZE		.SET	1536		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_zrc512.asm b/Source/HBIOS/Config/RCZ80_zrc512.asm
deleted file mode 100644
index cf1eed89..00000000
--- a/Source/HBIOS/Config/RCZ80_zrc512.asm
+++ /dev/null
@@ -1,69 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 ZRC512 CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZRC512", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	22000000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_zrc512_std.asm b/Source/HBIOS/Config/RCZ80_zrc512_std.asm
new file mode 100644
index 00000000..452ec099
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_zrc512_std.asm
@@ -0,0 +1,91 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 ZRC512
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZRC512", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+CPUOSC		.SET	22000000	; CPU OSC FREQ IN MHZ
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_zrc_ram.asm b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
deleted file mode 100644
index 3e3e3ef4..00000000
--- a/Source/HBIOS/Config/RCZ80_zrc_ram.asm
+++ /dev/null
@@ -1,69 +0,0 @@
-;
-;==================================================================================================
-;   RCBUS Z80 ZRC CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "ZRC", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_rcz80.asm"
-;
-CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
-;
-MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/RCZ80_zrc_ram_std.asm b/Source/HBIOS/Config/RCZ80_zrc_ram_std.asm
new file mode 100644
index 00000000..8f1d73d9
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_zrc_ram_std.asm
@@ -0,0 +1,90 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 ROMLESS ZRC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZRC", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RCZ80_zrc_std.asm b/Source/HBIOS/Config/RCZ80_zrc_std.asm
new file mode 100644
index 00000000..d0a6531e
--- /dev/null
+++ b/Source/HBIOS/Config/RCZ80_zrc_std.asm
@@ -0,0 +1,88 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RCBUS Z80 ZRC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "ZRC", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_RCZ80.asm"
+;
+CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
+;
+RAMSIZE		.SET	1536		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/RPH_std.asm b/Source/HBIOS/Config/RPH_std.asm
index 3dedea59..cfffc3c9 100644
--- a/Source/HBIOS/Config/RPH_std.asm
+++ b/Source/HBIOS/Config/RPH_std.asm
@@ -1,40 +1,59 @@
 ;
 ;==================================================================================================
-;   RHYOPHYRE STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR RHYOPHYRE
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_rph.asm"
+#INCLUDE "cfg_RPH.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
 INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
-RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
diff --git a/Source/HBIOS/Config/S100_std.asm b/Source/HBIOS/Config/S100_std.asm
index e3846c73..92b43a18 100644
--- a/Source/HBIOS/Config/S100_std.asm
+++ b/Source/HBIOS/Config/S100_std.asm
@@ -1,38 +1,58 @@
 ;
 ;==================================================================================================
-;   S100 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR S100
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_s100.asm"
+#INCLUDE "cfg_S100.asm"
 ;
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	1		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	2		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
+CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
 ;
@@ -42,5 +62,5 @@ SCONENABLE	.SET	TRUE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
 IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
diff --git a/Source/HBIOS/Config/SBC_max.asm b/Source/HBIOS/Config/SBC_max.asm
deleted file mode 100644
index f2ff533d..00000000
--- a/Source/HBIOS/Config/SBC_max.asm
+++ /dev/null
@@ -1,72 +0,0 @@
-;
-;==================================================================================================
-;   SBC MAXIMUM CONFIGURATION
-;==================================================================================================
-;
-; THIS CONFIGURATION FILE IS *NOT* MEANT TO GENERATE A FUNCTIONAL ROM.
-; IT IS USED TO HELP TEST BUILDS WITH MOST FEATURES ENABLED.
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .SET OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .SET BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_sbc.asm"
-;
-BATCOND		.SET	TRUE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.SET	TRUE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
-;
-KIOENABLE	.SET	TRUE		; ENABLE ZILOG KIO SUPPORT
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-DSKYENABLE	.SET	TRUE		; ENABLES DSKY (DO NOT COMBINE WITH PPIDE)
-ICMENABLE	.SET	TRUE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-PKDENABLE	.SET	TRUE		; ENABLES DSKY NG PKD DRIVER (8259)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-;
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-VDUENABLE	.SET	TRUE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.SET	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-VGAENABLE	.SET	TRUE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-;
-RFENABLE	.SET	TRUE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-;
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-;
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-;
-PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER (AY38910.ASM)
-;
-SN76489ENABLE	.SET	TRUE		; SN: ENABLE SN76489 SOUND DRIVER (SN76489.ASM)
-;
-YM2612ENABLE	.SET	TRUE		; YM2612: ENABLE ECB VGM YM2612 SOUND DRIVER (YM2612.ASM)
diff --git a/Source/HBIOS/Config/SBC_simh.asm b/Source/HBIOS/Config/SBC_simh.asm
deleted file mode 100644
index 328d6eed..00000000
--- a/Source/HBIOS/Config/SBC_simh.asm
+++ /dev/null
@@ -1,39 +0,0 @@
-;
-;==================================================================================================
-;   SBC SIMH EMULATOR CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_sbc.asm"
-;
-INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-;
-HTIMENABLE	.SET	TRUE		; ENABLE SIMH TIMER SUPPORT
-;
-SIMRTCENABLE	.SET	TRUE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTSBCFORCE	.SET	TRUE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-;
-HDSKENABLE	.SET	TRUE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
diff --git a/Source/HBIOS/Config/SBC_simh_std.asm b/Source/HBIOS/Config/SBC_simh_std.asm
new file mode 100644
index 00000000..a07330c6
--- /dev/null
+++ b/Source/HBIOS/Config/SBC_simh_std.asm
@@ -0,0 +1,65 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR N8VEM SBC W/SIMH SUPPORT
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SBC.asm"
+;
+INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+HTIMENABLE	.SET	TRUE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	TRUE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+SSERENABLE	.SET	TRUE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$6D		; SSER: STATUS PORT
+SSERDATA	.SET	$68		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00100000	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+;
+HDSKENABLE	.SET	TRUE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
diff --git a/Source/HBIOS/Config/SBC_std.asm b/Source/HBIOS/Config/SBC_std.asm
index 27c0f5fd..0a519655 100644
--- a/Source/HBIOS/Config/SBC_std.asm
+++ b/Source/HBIOS/Config/SBC_std.asm
@@ -1,55 +1,70 @@
 ;
 ;==================================================================================================
-;   SBC STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR N8VEM SBC
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_sbc.asm"
+#INCLUDE "cfg_SBC.asm"
 ;
 CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTSBC		.SET	TRUE		; UART: AUTO-DETECT SBC/ZETA ONBOARD UART
-UARTCAS		.SET	TRUE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.SET	TRUE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.SET	TRUE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.SET	FALSE		; UART: AUTO-DETECT RC UART
 SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 ;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
 CVDUENABLE	.SET	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 VGAENABLE	.SET	TRUE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
+FDMODE		.SET	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
 PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC]
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
 ;
 PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/SCZ180_sc126.asm b/Source/HBIOS/Config/SCZ180_sc126.asm
deleted file mode 100644
index 785580e9..00000000
--- a/Source/HBIOS/Config/SCZ180_sc126.asm
+++ /dev/null
@@ -1,71 +0,0 @@
-;
-;==================================================================================================
-;   SC126 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC126", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-FPLED_IO	.SET	$0D		; FP: PORT ADDRESS FOR FP LEDS
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/SCZ180_sc126_std.asm b/Source/HBIOS/Config/SCZ180_sc126_std.asm
new file mode 100644
index 00000000..85978ec5
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc126_std.asm
@@ -0,0 +1,92 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR SC126
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC126", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$0D		; FP: PORT ADDRESS FOR FP LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/SCZ180_sc130.asm b/Source/HBIOS/Config/SCZ180_sc130.asm
deleted file mode 100644
index 9987bf39..00000000
--- a/Source/HBIOS/Config/SCZ180_sc130.asm
+++ /dev/null
@@ -1,72 +0,0 @@
-;
-;==================================================================================================
-;   SC130 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC130", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/SCZ180_sc130_std.asm b/Source/HBIOS/Config/SCZ180_sc130_std.asm
new file mode 100644
index 00000000..7d73f2f8
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc130_std.asm
@@ -0,0 +1,93 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR SC130
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC130", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+;
+LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/SCZ180_sc131.asm b/Source/HBIOS/Config/SCZ180_sc131.asm
deleted file mode 100644
index 8d224875..00000000
--- a/Source/HBIOS/Config/SCZ180_sc131.asm
+++ /dev/null
@@ -1,55 +0,0 @@
-;
-;==================================================================================================
-;   SC131 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC131", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
-;
-DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
-CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
diff --git a/Source/HBIOS/Config/SCZ180_sc131_std.asm b/Source/HBIOS/Config/SCZ180_sc131_std.asm
new file mode 100644
index 00000000..535149db
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc131_std.asm
@@ -0,0 +1,81 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR SC131
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC131", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+;
+;
+LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+;
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+
+LCDENABLE	.SET	FALSE		; DISABLE LCD DISPLAY
diff --git a/Source/HBIOS/Config/SCZ180_sc140.asm b/Source/HBIOS/Config/SCZ180_sc140.asm
deleted file mode 100644
index 755975d4..00000000
--- a/Source/HBIOS/Config/SCZ180_sc140.asm
+++ /dev/null
@@ -1,66 +0,0 @@
-;
-;==================================================================================================
-;   SC140 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC140", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.SET	$A0		; FP: PORT ADDRESS FOR FP LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.SET	$A0		; FP: PORT ADDRESS FOR FP SWITCHES
-;
-LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_LINC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
diff --git a/Source/HBIOS/Config/SCZ180_sc140_std.asm b/Source/HBIOS/Config/SCZ180_sc140_std.asm
new file mode 100644
index 00000000..fb754bbd
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc140_std.asm
@@ -0,0 +1,87 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR PLATFORM: SBC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC140", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$A0		; FP: PORT ADDRESS FOR FP LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$A0		; FP: PORT ADDRESS FOR FP SWITCHES
+;
+LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_LINC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/SCZ180_sc503.asm b/Source/HBIOS/Config/SCZ180_sc503.asm
deleted file mode 100644
index 543d2be7..00000000
--- a/Source/HBIOS/Config/SCZ180_sc503.asm
+++ /dev/null
@@ -1,66 +0,0 @@
-;
-;==================================================================================================
-;   SC503 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC503", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.SET	$A0		; FP: PORT ADDRESS FOR FP LEDS
-FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.SET	$A0		; FP: PORT ADDRESS FOR FP SWITCHES
-;
-LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_LINC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
diff --git a/Source/HBIOS/Config/SCZ180_sc503_std.asm b/Source/HBIOS/Config/SCZ180_sc503_std.asm
new file mode 100644
index 00000000..ea11038d
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc503_std.asm
@@ -0,0 +1,89 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR SC503
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC503", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$A0		; FP: PORT ADDRESS FOR FP LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$A0		; FP: PORT ADDRESS FOR FP SWITCHES
+;
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+;
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDE0BASE	.SET	$90		; IDE 0: IO BASE ADDRESS
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_LINC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/SCZ180_sc700.asm b/Source/HBIOS/Config/SCZ180_sc700.asm
deleted file mode 100644
index d3d6284c..00000000
--- a/Source/HBIOS/Config/SCZ180_sc700.asm
+++ /dev/null
@@ -1,73 +0,0 @@
-;
-;==================================================================================================
-;   SC700 STANDARD CONFIGURATION
-;==================================================================================================
-;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
-;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
-;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
-;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
-;
-#DEFINE PLATFORM_NAME "Small Computer SC700", " [", CONFIG, "]"
-;
-#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
-;
-#include "cfg_scz180.asm"
-;
-CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
-CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-;
-Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-;
-LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
-LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
-;
-FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
-;
-DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
-MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-;
-AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
-SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-;
-FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPWDC]
-;
-IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR]
-SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
-;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
diff --git a/Source/HBIOS/Config/SCZ180_sc700_std.asm b/Source/HBIOS/Config/SCZ180_sc700_std.asm
new file mode 100644
index 00000000..486dfdce
--- /dev/null
+++ b/Source/HBIOS/Config/SCZ180_sc700_std.asm
@@ -0,0 +1,92 @@
+;
+;==================================================================================================
+;   ROMWBW DEFAULT BUILD SETTINGS FOR SC700
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer SC700", " [", CONFIG, "]"
+;
+#DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
+;
+#INCLUDE "cfg_SCZ180.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPWDC]
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
diff --git a/Source/HBIOS/Config/UNA_std.asm b/Source/HBIOS/Config/UNA_std.asm
index ee28f83a..ba3e6b18 100644
--- a/Source/HBIOS/Config/UNA_std.asm
+++ b/Source/HBIOS/Config/UNA_std.asm
@@ -1,27 +1,47 @@
 ;
 ;==================================================================================================
-;   UNA STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR UNA
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_una.asm"
+#INCLUDE "cfg_UNA.asm"
diff --git a/Source/HBIOS/Config/Z80RETRO_std.asm b/Source/HBIOS/Config/Z80RETRO_std.asm
index 29475b6a..c3a920c5 100644
--- a/Source/HBIOS/Config/Z80RETRO_std.asm
+++ b/Source/HBIOS/Config/Z80RETRO_std.asm
@@ -1,33 +1,54 @@
 ;
 ;==================================================================================================
-;   ZETA2 STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR Z80 RETRO
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_z80retro.asm"
+#INCLUDE "cfg_Z80RETRO.asm"
 ;
 CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
+;
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
diff --git a/Source/HBIOS/Config/ZETA2_std.asm b/Source/HBIOS/Config/ZETA2_std.asm
index 0245bfd5..413457db 100644
--- a/Source/HBIOS/Config/ZETA2_std.asm
+++ b/Source/HBIOS/Config/ZETA2_std.asm
@@ -1,40 +1,57 @@
 ;
 ;==================================================================================================
-;   ZETA2 STANDARD CONFIGURATION
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: ZETA 2
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_zeta2.asm"
+#INCLUDE "cfg_ZETA2.asm"
 ;
 CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTSBC		.SET	TRUE		; UART: AUTO-DETECT SBC/ZETA ONBOARD UART
-;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
+FDMODE		.SET	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
diff --git a/Source/HBIOS/Config/ZETA_std.asm b/Source/HBIOS/Config/ZETA_std.asm
index d422cab9..3984e5a1 100644
--- a/Source/HBIOS/Config/ZETA_std.asm
+++ b/Source/HBIOS/Config/ZETA_std.asm
@@ -1,40 +1,58 @@
 ;
 ;==================================================================================================
-;   ZETA STANDARD CONFIGURATION
+;   ROMWBW DEFAULT BUILD SETTINGS FOR ZETA
 ;==================================================================================================
 ;
-; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
-; CFG_<PLT>.ASM INCLUDED FILE WHICH IS FOUND IN THE PARENT DIRECTORY.  THIS FILE CONTAINS
-; COMMON CONFIGURATION SETTINGS THAT OVERRIDE THE DEFAULTS.  IT IS INTENDED THAT YOU MAKE
-; YOUR CUSTOMIZATIONS IN THIS FILE AND JUST INHERIT ALL OTHER SETTINGS FROM THE DEFAULTS.
-; EVEN BETTER, YOU CAN MAKE A COPY OF THIS FILE WITH A NAME LIKE <PLT>_XXX.ASM AND SPECIFY
-; YOUR FILE IN THE BUILD PROCESS.
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE.  THESE SETTINGS DEFINE THE OFFICIAL BUILD FOR THIS
+; PLATFORM AS DISTRIBUTED IN ROMWBW RELEASES.
 ;
-; THE SETTINGS BELOW ARE THE SETTINGS THAT ARE MOST COMMONLY MODIFIED FOR THIS PLATFORM.
-; MANY OF THEM ARE EQUAL TO THE SETTINGS IN THE INCLUDED FILE, SO THEY DON'T REALLY DO
-; ANYTHING AS IS.  THEY ARE LISTED HERE TO MAKE IT EASY FOR YOU TO ADJUST THE MOST COMMON
-; SETTINGS.
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
 ;
-; N.B., SINCE THE SETTINGS BELOW ARE REDEFINING VALUES ALREADY SET IN THE INCLUDED FILE,
-; TASM INSISTS THAT YOU USE THE .SET OPERATOR AND NOT THE .EQU OPERATOR BELOW. ATTEMPTING
-; TO REDEFINE A VALUE WITH .EQU BELOW WILL CAUSE TASM ERRORS!
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
 ;
-; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
-; DIRECTORIES ABOVE THIS ONE).
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THIS FILE, THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
 ;
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_zeta.asm"
+#INCLUDE "cfg_ZETA.asm"
 ;
 CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
-CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTSBC		.SET	TRUE		; UART: AUTO-DETECT SBC/ZETA ONBOARD UART
+CRTACT		.SET	TRUE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.SET	FDMODE_ZETA	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC]
+FDMODE		.SET	FDMODE_ZETA	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
 ;
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
diff --git a/Source/HBIOS/Makefile b/Source/HBIOS/Makefile
index d684aa1f..4370db84 100644
--- a/Source/HBIOS/Makefile
+++ b/Source/HBIOS/Makefile
@@ -3,10 +3,11 @@ MOREDIFF = game.bin hbios_rom.bin nascom.bin usrrom.bin \
 	dbgmon.bin hbios_app.bin imgpad2.bin osimg1.bin osimg2.bin romldr.bin \
 	eastaegg.bin hbios_img.bin osimg.bin game.bin updater.bin usrrom.bin
 
-SUBDIRS =
+# SUBDIRS = SysConfig
 DEST = ../../Binary
 TOOLS =../../Tools
-OTHERS =  *.img *.rom *.com *.upd *.bin *.hex cpm.sys zsys.sys Build.inc font*.asm *.dat hbios_env.sh
+OTHERS =  *.img *.rom *.com *.upd *.bin *.hex cpm.sys zsys.sys Build.inc font*.asm *.dat hbios_env.sh \
+	SysConfig/*.com SysConfig/*.bin SysConfig/*.lst
 
 # DIFFMAKE = 1
 
@@ -18,7 +19,7 @@ endif
 
 ifeq ($(OBJECTS),)
 start:
-	chmod +x Build.sh
+	@chmod +x Build.sh
 	bash Build.sh $(DIFFBUILD)
 endif
 
@@ -59,10 +60,10 @@ ROMNAME=${ROM_PLATFORM}_${ROM_CONFIG}
 # $(info TASM=$(TASM))
 
 $(OBJECTS) : $(ROMDEPS)
-	cat romldr.bin dbgmon.bin ../ZSDOS/zsys_$(BIOS).bin ../CPM22/cpm_$(BIOS).bin >osimg.bin
+	@cat romldr.bin dbgmon.bin ../ZSDOS/zsys_$(BIOS).bin ../CPM22/cpm_$(BIOS).bin >osimg.bin
 	cat romldr.bin dbgmon.bin ../ZSDOS/zsys_$(BIOS).bin >osimg_small.bin
 	if [ $(ROM_PLATFORM) != UNA ] ; then \
-		cat camel80.bin nascom.bin tastybasic.bin game.bin eastaegg.bin netboot.mod updater.bin usrrom.bin >osimg1.bin ; \
+		cat camel80.bin nascom.bin tastybasic.bin game.bin eastaegg.bin netboot.mod updater.bin SysConfig/sysconfig.bin usrrom.bin >osimg1.bin ; \
 		if [ $(ROM_PLATFORM) = S100 ] ; then \
 			cat s100mon.bin >osimg2.bin ; \
 		else \
@@ -88,7 +89,7 @@ $(OBJECTS) : $(ROMDEPS)
 		fi \
 	fi
 
-prereq: $(FONTS) camel80.bin tastybasic.bin
+prereq: $(FONTS) camel80.bin tastybasic.bin syscon
 
 font%.asm:
 	cp ../Fonts/$@ .
@@ -96,27 +97,30 @@ font%.asm:
 camel80.bin:
 	cp ../Forth/$@ .
 
+syscon:
+	$(MAKE) --directory SysConfig
+
 s100mon.bin:
 	$(ZXCC) $(CPM)/SLR180 -s100mon/FH
 	$(ZXCC) $(CPM)/MLOAD25 -s100mon.bin=s100mon
 
 tastybasic.bin:
 	cp ../TastyBasic/src/$@ .
-	
+
 hbios_rom.bin:	hbios.asm build.inc  $(DEPS)
-	$(TASM) -dROMBOOT hbios.asm hbios_rom.bin hbios_rom.lst
+	@$(TASM) -dROMBOOT hbios.asm hbios_rom.bin hbios_rom.lst
 
 hbios_app.bin:	hbios.asm build.inc  $(DEPS)
-	$(TASM) -dAPPBOOT hbios.asm hbios_app.bin hbios_app.lst
+	@$(TASM) -dAPPBOOT hbios.asm hbios_app.bin hbios_app.lst
 
 hbios_img.bin:	hbios.asm build.inc  $(DEPS)
-	$(TASM) -dIMGBOOT hbios.asm hbios_img.bin hbios_img.lst
+	@$(TASM) -dIMGBOOT hbios.asm hbios_img.bin hbios_img.lst
 
 hbios_env.com:	hbios_env.asm build.inc
-	$(TASM) -dBASH hbios_env.asm hbios_env.com hbios_env.lst
-	
+	@$(TASM) -dBASH hbios_env.asm hbios_env.com hbios_env.lst
+
 hbios_env.sh: hbios_env.com
-	$(ZXCC) hbios_env.com >hbios_env.sh
+	@$(ZXCC) hbios_env.com >hbios_env.sh
 
 romldr.bin:	build.inc
 dbgmon.bin:	build.inc
diff --git a/Source/HBIOS/Makefile.new b/Source/HBIOS/Makefile.new
index 16d7f26e..21191551 100644
--- a/Source/HBIOS/Makefile.new
+++ b/Source/HBIOS/Makefile.new
@@ -5,8 +5,8 @@ DIST_OBJECTS := \
 	RCZ80_zrc_ram RCZ80_zrc512 RPH_std SBC_std SBC_simh MBC_std \
 	DUO_std SCZ180_sc126 SCZ180_sc130 SCZ180_sc131 SCZ180_sc140 \
 	SCZ180_sc503 SCZ180_sc700 S100_std UNA_std Z80RETRO_std \
-	ZETA_std ZETA2_std HEATH_std EPITX_std
-#	RCZ80_mt RCZ80_duart MON_std 
+	ZETA_std ZETA2_std HEATH_std EPITX_std GMZ180_std
+#	RCZ80_mt RCZ80_duart MON_std
 
 OBJECTS := $(DIST_OBJECTS)
 # OBJECTS := SBC_std MK4_std UNA_std S100_std
@@ -41,6 +41,9 @@ camel80.bin:
 tastybasic.bin:
 	cp ../TastyBasic/src/$@ .
 
+sysconfig.bin:
+	cp SysConfig/$@ .
+
 s100mon.bin:
 	$(ZXCC) $(CPM)/SLR180 -s100mon/FH
 	$(ZXCC) $(CPM)/MLOAD25 -s100mon.bin=s100mon
@@ -100,8 +103,8 @@ UNA_%.osimg.bin: UNA_%.romldr.bin UNA_%.dbgmon.bin
 %.osimg_small.bin: %.romldr.bin %.dbgmon.bin
 	cat $(*F).romldr.bin $(*F).dbgmon.bin ../ZSDOS/zsys_wbw.bin >$@
 
-%.osimg1.bin: camel80.bin %.nascom.bin tastybasic.bin %.game.bin %.eastaegg.bin netboot.mod %.updater.bin %.usrrom.bin
-	cat camel80.bin $(*F).nascom.bin tastybasic.bin $(*F).game.bin $(*F).eastaegg.bin netboot.mod $(*F).updater.bin $(*F).usrrom.bin >$@
+%.osimg1.bin: camel80.bin %.nascom.bin tastybasic.bin %.game.bin %.eastaegg.bin netboot.mod %.updater.bin sysconfig.bin %.usrrom.bin
+	cat camel80.bin $(*F).nascom.bin tastybasic.bin $(*F).game.bin $(*F).eastaegg.bin netboot.mod $(*F).updater.bin sysconfig.bin $(*F).usrrom.bin >$@
 	srec_cat $@ -Binary -Crop 0 0x7FFF -Checksum_Negative_Big_Endian 0x7FFF 1 1 -o $@ -Binary
 
 S100_%.imgpad2.bin: s100mon.bin
diff --git a/Source/HBIOS/SysConfig/Build.cmd b/Source/HBIOS/SysConfig/Build.cmd
new file mode 100644
index 00000000..3b609070
--- /dev/null
+++ b/Source/HBIOS/SysConfig/Build.cmd
@@ -0,0 +1,11 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t80 -g3 -fFF -dCPM sysconfig.asm sysconfig.com sysconfig.lst || exit /b
+tasm -t80 -g3 -fFF -dROMWBW sysconfig.asm sysconfig.bin sysconfig.lst || exit /b
+
+copy /Y sysconfig.com ..\..\..\Binary\Apps\ || exit /b
diff --git a/Source/HBIOS/SysConfig/Clean.cmd b/Source/HBIOS/SysConfig/Clean.cmd
new file mode 100644
index 00000000..f408cf0e
--- /dev/null
+++ b/Source/HBIOS/SysConfig/Clean.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst
+if exist *.bin del *.bin
diff --git a/Source/HBIOS/SysConfig/Makefile b/Source/HBIOS/SysConfig/Makefile
new file mode 100644
index 00000000..c44a90e0
--- /dev/null
+++ b/Source/HBIOS/SysConfig/Makefile
@@ -0,0 +1,12 @@
+OBJECTS = sysconfig.com sysconfig.bin
+DEST = ../../../Binary/Apps
+NOCOPY = sysconfig.bin
+TOOLS = ../../../Tools
+
+include $(TOOLS)/Makefile.inc
+
+USETASM=1
+
+sysconfig.bin: TASMFLAGS=-dROMWBW
+
+sysconfig.com: TASMFLAGS=-dCPM
diff --git a/Source/HBIOS/SysConfig/README.md b/Source/HBIOS/SysConfig/README.md
new file mode 100644
index 00000000..e9269771
--- /dev/null
+++ b/Source/HBIOS/SysConfig/README.md
@@ -0,0 +1,21 @@
+# System Configuration
+
+## Introduction
+
+An utility applicaton that sets NVR Attributes that affect HBIOS and 
+RomWBW Operation. Write to RTC NVRAM to store config is reliant on HBIOS
+
+## Building
+
+TASM (Telemark Assembler) ([Anderson, 1998](##References)).
+
+### RomWBW Version
+
+Is part of the SBCv2 RomWBW distribution. And deployed as a Rom Application
+It is included in Rom Bank 1
+
+### CP/M Version
+
+The resulting `sysconfig.com` command file can be run in CP/M.
+It is copied in the Binary/Apps folder.
+
diff --git a/Source/HBIOS/SysConfig/sysconfig.asm b/Source/HBIOS/SysConfig/sysconfig.asm
new file mode 100644
index 00000000..c2ca2827
--- /dev/null
+++ b/Source/HBIOS/SysConfig/sysconfig.asm
@@ -0,0 +1,1032 @@
+;
+;=======================================================================
+; HBIOS System Configuration via NVRAM
+; ALLOWS CONFIG OF NVR TO SET OPTIONS FOR HBIOS CONFIGURATION
+;=======================================================================
+;
+; Simple utility that sets NVR Attributes that affect HBIOS
+; and RomWBW Operation. Write to RTC NVRAM to store config
+; is reliant on HBIOS
+;
+; NOTE: This program is built as both a CP/M COM and Rom WBW Applicaton
+;
+; ROM APPLICATION THAT IS AUTOMATICALLY INCLUDED IN THE ROMWBW ROM.
+; IT IS INVOKED FROM THE BOOT LOADER USING THE 'W' OPTION. (See RomLDR)
+;
+;	Author:  Mark Pruden
+;
+; BASED ON USEROM.ASM
+; THANKS AND CREDIT TO MARTIN R. FOR PROVIDING THIS APPLICATION!
+; Also Based on The Tasty Basic Configuration
+; Utilitity function were also copied from RomLdr, Assign.
+;
+#include "../../ver.inc"
+#include "../hbios.inc"
+;
+;=======================================================================
+;
+#ifdef CPM
+#define PLATFORM "CP/M"
+NVR_LOC		.equ	0100h
+#endif
+;
+#ifdef ROMWBW
+;
+#define PLATFORM "ROMWBW"
+#include "../layout.inc"
+#endif
+;
+;=======================================================================
+;
+cmdmax		.EQU	$20		; Max cmd input length
+stksiz		.EQU	$40		; Working stack size
+restart		.EQU	$0000		; CP/M restart vector
+bdos		.EQU	$0005		; BDOS invocation vector
+ident		.EQU	$FFFE		; loc of RomWBW HBIOS ident ptr
+;
+ETX		.EQU	3		; CTRL-C
+BEL		.EQU	7		; ASCII bell
+BS		.EQU	8		; ASCII backspace
+LF		.EQU	10
+CR		.EQU	13
+DEL		.EQU	127		; ASCII del/rubout
+;
+;=======================================================================
+;
+		.ORG	NVR_LOC
+;
+#ifdef ROMWBW
+	; PLACE STACK AT THE TOP OF AVAILABLE RAM (JUST BELOW THE HBIOS PROXY).
+	LD	SP,HBX_LOC
+#endif
+#ifdef CPM
+	; setup stack (save old value)
+	ld	(stksav),sp		; save stack
+	ld	sp,stack		; set new stack
+	; initialization
+	call	init			; initialize
+	jr	nz,exit			; abort if init fails
+#endif
+;
+	call	main			; do the real work
+;
+exit:
+	; clean up and return to command processor
+	; call	crlf			; formatting
+;
+#ifdef ROMWBW
+	LD	B,BF_SYSRESET		; SYSTEM RESTART
+	LD	C,BF_SYSRES_WARM	; WARM START
+	RST	08			; CALL HBIOS (DOES NOT RETURN)
+#endif
+#ifdef CPM
+;
+	ld	sp,(stksav)		; restore stack
+	jp	restart			; return to CP/M via restart
+;
+;=======================================================================
+; CPM Specific Init
+;=======================================================================
+;
+init:
+	; check for UNA (UBIOS)
+	ld	a,($FFFD)	; fixed location of UNA API vector
+	cp	$C3		; jp instruction?
+	jr	nz,initwbw	; if not, not UNA
+	ld	hl,($FFFE)	; get jp address
+	ld	a,(hl)		; get byte at target address
+	cp	$FD		; first byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+	inc	hl		; point to next byte
+	ld	a,(hl)		; get next byte
+	cp	$E5		; second byte of UNA push ix instruction
+	jr	nz,initwbw	; if not, not UNA
+	jp	err_una		; UNA not supported
+;
+initwbw:
+	; get location of config data and verify integrity
+	ld	hl,(ident)	; HL := adr or RomWBW HBIOS ident
+	ld	a,(hl)		; get first byte of RomWBW marker
+	cp	'W'		; match?
+	jp	nz,err_inv	; abort with invalid config block
+	inc	hl		; next byte (marker byte 2)
+	ld	a,(hl)		; load it
+	cp	~'W'		; match?
+	jp	nz,err_inv	; abort with invalid config block
+	inc	hl		; next byte (major/minor version)
+	ld	a,(hl)		; load it
+	cp	rmj << 4 | rmn	; match?
+	jp	nz,err_ver	; abort with invalid os version
+;
+initz:
+	; initialization complete
+	xor	a		; signal success
+	ret			; return
+;
+err_una:
+	ld	de,str_err_una
+	jp	err_ret
+err_inv:
+	ld	de,str_err_inv
+	jp	err_ret
+err_ver:
+	ld	de,str_err_ver
+	jp	err_ret
+;
+str_err_una		.db	"  ERROR: UNA not supported by application",0
+str_err_inv		.db	"  ERROR: Invalid BIOS (signature missing)",0
+str_err_ver		.db	"  ERROR: Unexpected HBIOS version",0
+;
+#endif
+;
+;=======================================================================
+; Main Program and Loop
+;
+; TODO Potentially turn this into CP/M command line driven app.
+; TODO Ie it just processes a single command (if provided) by CPM.
+;=======================================================================
+;
+main:
+	call	prtcrlf
+	ld	de,str_banner		; banner
+	call	prtstr
+;
+	CALL	PRT_STATUS		; PRINT STATUS
+	ld	de,MSG_MENU		; Print the Main Menu
+	CALL	prtstr
+;
+mainloop:
+	ld	DE,MSG_PROMPT
+	CALL	prtstr			; Print a prompt >
+	CALL	rdln			; READ INPUT
+;
+	; accept and pare input
+	ld	de,cmdbuf		; point to start of buf
+	call	skipws			; skip whitespace
+	JR	z,mainloop		; if empty line, just loop back
+	call	upcase
+;
+	; MENU OPTIONS (documented)
+	cp	'H'
+	JR	Z,helpandloop		; get help
+	cp	'P'
+	JR	Z,statusandloop		; print status
+	cp	'Q'
+	ret	Z			; finished
+	cp	'R'
+	JR	Z,resetandloop		; reset NVRAM
+	cp	'S'
+	JR	Z,setvalueandloop	; todo set Value
+;
+	; COMMON ALTERNATES (undocumented)
+	cp	'L'
+	JR	Z,statusandloop		; print status
+	cp	'X'
+	ret	Z			; finished
+	cp	'Z'
+	ret	Z			; finished
+	cp	'?'
+	JR	Z,helpandloop		; get help
+	cp	'/'
+	JR	Z,helpandloop		; get help
+;
+	; Main Loop
+	JR	mainloop		; Noting Valid was entered
+;
+;=======================================================================
+; General Functional Routines Called By Menu Options
+;=======================================================================
+;
+; Print Help Menu
+;
+helpandloop:				; HELP MENU
+	CALL	findskipws		; skip over WS to first char
+	JR	z,printmainhelp		; if empty line, print main help
+	call	upcase
+;
+	; the folloiwng is just testing a single charater
+	cp	'A'			; Auto Boot help menu
+	JP	Z,HELP_AB
+	cp	'D'			; Default Boot help menu
+	JP	Z,HELP_DB
+;
+printmainhelp:
+	ld	de,MSG_MENU		; nothing found Print the Main Menu
+printhelp:
+	CALL	prtstr			; print the selected help message
+	JR	mainloop
+;
+; -----------
+; RESET NVRAM
+;
+resetandloop:				; RESET NVRAM
+	LD	BC,BC_SYSSET_SWITCH
+	LD	D,$FF			; RESET SWITCH
+	RST	08			; Reset NV RAM
+	JR	statusandloop		; now reprint the status
+;
+; -------------
+; Set NV Ram Value
+;
+setvalueandloop:
+	CALL	findskipws		; skip over WS to first char
+	JR	z,setvalueerror		; if empty line, print ?
+	call	upcase
+;
+	; the folloiwng is just testing a single charater
+	cp	'A'			; Auto Boot help menu
+	JP	Z,SET_AB
+	cp	'D'			; Default Boot help menu
+	JP	Z,SET_DB
+;
+setvalueerror:
+	ld	de,MSG_QUESTION		; nothing found Print the Main Menu
+	CALL	prtstr			; print the selected help message
+	JR	mainloop
+;
+setvaluesave:
+	LD	BC,BC_SYSSET_SWITCH	; SET THE VALUE
+	RST	08			; HL is savd
+	; JR	statusandloop		; finish display status (FALL THROUGH)
+;
+; ------------
+; Print Status
+;
+statusandloop:
+	CALL	PRT_STATUS		; print status
+	JR	mainloop
+;
+; Call with Return to print status
+;
+PRT_STATUS:
+	LD	de,MSG_STAT		; print status open mesg
+	CALL	prtstr
+	LD	BC,BC_SYSGET_SWITCH
+	LD	D,$FF			; check for existence of switches
+	RST	08
+	JR	NZ,STAT_NOTFOUND	; error means switchs are not enabled
+;
+; print invdividual stats, on all per switch
+;
+	CALL	STAT_DEFBOOT
+	CALL	STAT_AUTOB
+;
+; end individual stats
+;
+	CALL	prtcrlf
+	RET
+STAT_NOTFOUND:
+	LD	de,MSG_NOTF
+	CALL	prtstr
+	RET
+;
+; ======================================================================
+; Specific Switches Below
+; ======================================================================
+;
+; DEFAULT BOOT
+;   Byte 1: (L)
+;     Bit 7-0 DISK BOOT SLice Number to Boot -> default = 0
+;     Bit 7-0 ROM BOOT (alpha character) Application to boot -> default = 0 translates to "H"
+;   Byte 2: (H)
+;     Bit 7 - DISK/ROM - Disk or Rom Boot -> Default=ROM (BOOT_DEFAULT is Numeric/Alpha)
+;     Bit 6-0 - DISK BOOT Disk Unit to Boot (0-127) -> default = 0
+;
+; PRINT CURRENT SWITCH VALUE
+;
+STAT_DEFBOOT:
+	LD	BC,BC_SYSGET_SWITCH
+	LD	D,NVSW_DEFBOOT
+	RST	08			; Should return auto Boot in HL
+	RET	NZ			; return if error
+	LD	de,MSG_DEFBOOT
+	CALL	prtstr
+	LD	A,H			; Byte 2
+	AND	DBOOT_ROM		; DISK/ROM
+	JR	NZ,STAT_AUTOROM		; is it ROM
+STAT_AUTODISK:
+	LD	de,MSG_DISK		; disk
+	CALL	prtstr
+	LD	A,H			; Byte 2
+	AND	DBOOT_UNIT		; Unit
+	CALL	prtdecb
+	LD	de,MSG_DISK2		; Slice
+	CALL	prtstr
+	LD	A,L			; SLICE
+	CALL	prtdecb
+	LD	de,MSG_DISK3		; close bracket
+	CALL	prtstr
+	RET
+STAT_AUTOROM:
+	LD	de,MSG_ROM		; ROM
+	CALL	prtstr
+	LD	A,L			; ROM APP
+	call	prtchr
+	LD	de,MSG_ROM2		; close bracket
+	CALL	prtstr
+	RET
+;
+; SET SWITCH VALUE
+;
+SET_DB:
+	CALL	findskipws		; skip over WS to first char
+	JR	z,SET_DB_ERR		; if empty line, print main help
+	call	upcase
+	cp	'R'			; ROM
+	JR	Z,SET_DB_ROM
+	cp	'D'			; DISK
+	JR	Z,SET_DB_DISK
+	JR	SET_DB_ERR
+SET_DB_ROM:
+	CALL	findskipcomma
+	CALL	skipws
+	JR	z,SET_DB_ERR		; if empty line, print main help
+	LD	L,A			; LOW BYTE ; next CHAR is the ROM App Name
+	LD	A,DBOOT_ROM
+	LD	H,A			; HIGH BYTE, has constant. DBOOT_ROM = $80
+	JR	SET_DB_SAVE		; SAVE
+SET_DB_DISK:
+	CALL	findskipcomma
+	CALL	skipws
+	JR	z,SET_DB_ERR		; if empty line, print main help
+	CALL	getnum			; next CHAR is the DISK UNIT
+	JR	C,SET_DB_ERR		; overflow
+	BIT	7,A			; is > 127
+	JR	NZ, SET_DB_ERR
+	LD	H,A			; HIGH BYTE, has disk unit < $80
+	CALL	findskipcomma
+	CALL	skipws
+	JR	z,SET_DB_ERR		; if empty line, print main help
+	CALL	getnum			; next CHAR is the SLICE
+	JR	C,SET_DB_ERR		; overflow
+	LD	L,A			; LOW BYTE, has the slice number
+	;JR	SET_DB_SAVE		; SAVE - Fall Through
+SET_DB_SAVE:
+	LD	D,NVSW_DEFBOOT		; DEFAULT BOOT
+	JP	setvaluesave		; SAVE THE VALUE
+SET_DB_ERR:
+	JP	setvalueerror		; ERROR. Added this so can use JR above
+;
+; PRINT HELP TEST FOR SWITCH
+;
+HELP_DB:
+	ld	de,MSG_DEFB_H
+	JP	printhelp
+;
+MSG_DEFBOOT	.DB	CR,LF, "  [DB] / Default Boot: ",0
+MSG_DISK	.DB	"Disk (Unit = ",0
+MSG_DISK2	.DB	", Slice = ",0
+MSG_DISK3	.DB	")",0
+MSG_ROM		.DB	"ROM (App = \"",0
+MSG_ROM2	.DB	"\")",0
+;
+MSG_DEFB_H	.DB	"\r\nDefault Boot - Disk or Rom App (DB):\r\n"
+		.DB	"  DB [R|D],[{romapp}|{unit},{slice}]\r\n"
+		.DB	"    e.g. S DB D,2,14 ; Disk Boot, unit 2, slice 14\r\n"
+		.DB	"         S DB R,M    ; Rom Application 'M'onitor\r\n"
+		.DB	"  Note: Disk: Unit (0-127); Slice (0-255)\r\n",0
+;
+;=======================================================================
+;
+; AUTO BOOT
+;   Byte 0: (L)
+;     Bit 7-6 - Reserved
+;     Bit 5 - AUTO BOOT Auto boot, default=false (i.e. BOOT_TIMEOUT != -1)
+;     Bit 4 - Reserved
+;     Bit 3-0 - BOOT_TIMEOUT in seconds (0-15) 0=immediate -> default=3
+;
+; PRINT CURRENT SWITCH VALUE
+;
+STAT_AUTOB:
+	LD	BC,BC_SYSGET_SWITCH
+	LD	D,NVSW_AUTOBOOT
+	RST	08			; Should return auto Boot in HL
+	RET	NZ			; return if error
+	LD	de,MSG_AUTOB
+	CALL	prtstr
+	LD	A,L			; Byte 1
+	LD	de,MSG_DISABLED
+	AND	ABOOT_AUTO		; enabled
+	JR	Z, STAT_AUTOB1		; disabled
+	LD	de,MSG_ENABLED		; enabled
+	CALL	prtstr
+	LD	A,L			; Byte 1
+	AND	ABOOT_TIMEOUT		; timeout
+	CALL	prtdecb			; print timeout
+	LD	de,MSG_ENABLED2		; and closing bracket
+STAT_AUTOB1:
+	CALL	prtstr
+	RET
+;
+; SET SWITCH VALUE
+;
+SET_AB:
+	CALL	findskipws		; skip over WS to first char
+	JR	z,SET_AB_ERR		; if empty line, print main help
+	call	upcase
+	cp	'E'			; Enabled
+	JR	Z,SET_AB_ENAB
+	cp	'D'			; Disabled
+	JR	Z,SET_AB_DISAB
+	JR	SET_AB_ERR
+SET_AB_ENAB:
+	CALL	findskipcomma
+	CALL	skipws
+	JR	z,SET_AB_ERR		; if empty line, print main help
+	CALL	getnum			; next NUMBER is the timout
+	JR	C,SET_AB_ERR		; overflow
+	AND	$F0			; mask just the upper bits
+	JR	NZ,SET_AB_ERR		; if any upper bit set > 15 then Error
+	LD	A,C			; NOTE getnum also returns Value in C
+	OR	ABOOT_AUTO		; set the enabled bit for auto boot
+	LD	L,A			; LOW BYTE, has the timeout from getNum
+	JR	SET_AB_SAVE		; SAVE
+SET_AB_DISAB:
+	LD	L,0
+	;JR	SET_AB_SAVE		; SAVE - Fall Through
+SET_AB_SAVE:
+	LD	D,NVSW_AUTOBOOT		; AUTO BOOT
+	JP	setvaluesave		; SAVE THE VALUE
+SET_AB_ERR:
+	JP	setvalueerror		; ERROR. Added this so can use JR above
+;
+; PRINT HELP TEST FOR SWITCH
+;
+HELP_AB:
+	ld	de,MSG_AUTOB_H
+	JP	printhelp
+;
+MSG_AUTOB:	.DB	CR,LF,"  [AB] / Auto Boot: ",0
+MSG_ENABLED:	.DB	"Enabled (Timeout = ",0
+MSG_ENABLED2:	.DB	")",0
+MSG_DISABLED:	.DB	"Disabled",0
+;
+MSG_AUTOB_H	.DB	"\r\nAutomatic Boot (AB):\r\n"
+		.DB	"  AB <D|E>[,{timeout}]\r\n"
+		.DB	"    e.g. S AB E,3 ; enabled (show menu) with 3 second timout before boot\r\n"
+		.DB	"         S AB E,0 ; enabled with immediate effect, bypass menu\r\n"
+		.DB	"         S AB D   ; disabled, just display menu\r\n",0
+;
+;=======================================================================
+; Error Handlers
+;=======================================================================
+;
+err_unknown:
+	ld	de,str_err_unknown
+	jr	err_ret
+;
+err_ret:
+	call	prtcrlf2
+	call	prtstr
+	or	$FF			; signal error
+	ret
+;
+;=======================================================================
+; GENERAL CONSTANTS
+;=======================================================================
+;
+str_banner	.db	"\r\n"
+		.db	"RomWBW System Config Utility, Version 1.0 Nov-2024\r\n",0
+;
+MSG_MENU	.DB	"\r\n"
+		.DB	"Commands:\r\n"
+		.DB	"  (P)rint - Display Current settings\r\n"
+		.DB	"  (S)et {SW},{val}[,{val}[,{val}]]- Set a switch value(s)\r\n"
+		.DB	"  (R)eset - Init NVRAM to Defaults\r\n"
+		.DB	"  (H)elp [{SW}] - This help menu, or help on a switch\r\n"
+		.DB	"  (Q)uit - Quit\r\n"
+		.DB	0
+MSG_PROMPT:	.DB	"\r\n"
+		.DB	"$", 0
+MSG_STAT:	.DB	"\r\nCurrent Configuration: ",0
+MSG_NOTF:	.DB	"Config Not Found.\r\n",0
+MSG_QUESTION	.DB	"\r\n?\r\n",0
+;
+;MSG_PAK:	.DB	"\r\nPress Any Key ...",0
+;
+str_err_unknown	.db	"\r\nUnknown Error\r\n",0
+;
+;=======================================================================
+; Utility Routines
+;=======================================================================
+;
+; Print a dot character without destroying any registers
+;
+prtdot:
+	; shortcut to print a dot preserving all regs
+	push	af		; save af
+	ld	a,'.'		; load dot char
+	call	prtchr		; print it
+	pop	af		; restore af
+	ret			; done
+;
+; Print Cr LF
+;
+prtcrlf2:
+	call	prtcrlf		; two of them
+prtcrlf:
+	; shortcut to print a dot preserving all regs
+	push	af		; save af
+	ld	a,13
+	call	prtchr		; print it
+	ld	a,10
+	call	prtchr		; print it
+	pop	af		; restore af
+	ret			; done
+;
+; Print a zero terminated string at (de) without destroying any registers
+;
+prtstr:
+	push	af
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	pop	af
+	ret
+;
+; Print a hex value prefix "0x"
+;
+prthexpre:
+	push	af
+	ld	a,'0'
+	call	prtchr
+	ld	a,'x'
+	call	prtchr
+	pop	af
+	ret
+;
+; Print the value in A in hex without destroying any registers
+;
+;prthex:
+;	call	prthexpre
+;prthex1:
+;	push	af		; save AF
+;	push	de		; save DE
+;	call	hexascii	; convert value in A to hex chars in DE
+;	ld	a,d		; get the high order hex char
+;	call	prtchr		; print it
+;	ld	a,e		; get the low order hex char
+;	call	prtchr		; print it
+;	pop	de		; restore DE
+;	pop	af		; restore AF
+;	ret			; done
+;
+; print the hex word value in hl
+;
+;prthexword:
+;	call	prthexpre
+;prthexword1:
+;	push	af
+;	ld	a,h
+;	call	prthex1
+;	ld	a,l
+;	call	prthex1
+;	pop	af
+;	ret
+;
+; print the hex dword value in de:hl
+;
+;prthex32:
+;	call	prthexpre
+;	push	bc
+;	push	de
+;	pop	bc
+;	call	prthexword1
+;	push	hl
+;	pop	bc
+;	call	prthexword1
+;	pop	bc
+;	ret
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+;hexascii:
+;	ld	d,a		; save A in D
+;	call	hexconv		; convert low nibble of A to hex
+;	ld	e,a		; save it in E
+;	ld	a,d		; get original value back
+;	rlca			; rotate high order nibble to low bits
+;	rlca
+;	rlca
+;	rlca
+;	call	hexconv		; convert nibble
+;	ld	d,a		; save it in D
+;	ret			; done
+;
+; Convert low nibble of A to ascii hex
+;
+;hexconv:
+;	and	$0F	     	; low nibble only
+;	add	a,$90
+;	daa
+;	adc	a,$40
+;	daa
+;	ret
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+prtdecb:
+	push	hl
+	ld	h,0
+	ld	l,a
+	call	prtdecw		; print it
+	pop	hl
+	ret
+;
+prtdecw:
+	push	af
+	push	bc
+	push	de
+	push	hl
+	call	prtdec0
+	pop	hl
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+prtdec0:
+	ld	e,'0'
+	ld	bc,-10000
+	call	prtdec1
+	ld	bc,-1000
+	call	prtdec1
+	ld	bc,-100
+	call	prtdec1
+	ld	c,-10
+	call	prtdec1
+	ld	e,0
+	ld	c,-1
+prtdec1:
+	ld	a,'0' - 1
+prtdec2:
+	inc	a
+	add	hl,bc
+	jr	c,prtdec2
+	sbc	hl,bc
+	cp	e
+	ret	z
+	ld	e,0
+	call	prtchr
+	ret
+;
+; Print value of HL as thousandths, ie. 0.000
+;
+;prtd3m:
+;	push	bc
+;	push	de
+;	push	hl
+;	ld	e,'0'
+;	ld	bc,-10000
+;	call	prtd3m1
+;	ld	e,0
+;	ld	bc,-1000
+;	call	prtd3m1
+;	call	prtdot
+;	ld	bc,-100
+;	call	prtd3m1
+;	ld	c,-10
+;	call	prtd3m1
+;	ld	c,-1
+;	call	prtd3m1
+;	pop	hl
+;	pop	de
+;	pop	bc
+;	ret
+;prtd3m1:
+;	ld	a,'0' - 1
+;prtd3m2:
+;	inc	a
+;	add	hl,bc
+;	jr	c,prtd3m2
+;	sbc	hl,bc
+;	cp	e
+;	jr	z,prtd3m3
+;	ld	e,0
+;	call	prtchr
+;prtd3m3:
+;	ret
+;
+; -------------------------------------------------------
+;
+; Get the next non-blank character from (HL).
+;
+;nonblank:
+;	ld	a,(ix)		; load next character
+;	or	a		; string ends with a null
+;	ret	z		; if null, return pointing to null
+;	cp	' '		; check for blank
+;	ret	nz		; return if not blank
+;	inc	ix		; if blank, increment character pointer
+;	jr	nonblank	; and loop
+;
+; Get alpha chars and save in tmpstr
+; Length of string returned in A
+;
+;getalpha:
+;
+;	ld	hl,tmpstr	; location to save chars
+;	ld	b,8		; length counter (tmpstr max chars)
+;	ld	c,0		; init character counter
+;
+;getalpha1:
+;	ld	a,(ix)		; get active char
+;	call	upcase		; lower case -> uppper case, if needed
+;	cp	'A'		; check for start of alpha range
+;	jr	c,getalpha2	; not alpha, get out
+;	cp	'Z' + 1		; check for end of alpha range
+;	jr	nc,getalpha2	; not alpha, get out
+;	; handle alpha char
+;	ld	(hl),a		; save it
+;	inc	c		; bump char count
+;	inc	hl		; inc string pointer
+;	inc	ix		; increment buffer ptr
+;	djnz	getalpha1	; if space, loop for more chars
+;
+;getalpha2:	; non-alpha, clean up and return
+;	ld	(hl),0		; terminate string
+;	ld	a,c		; string length to A
+;	or	a		; set flags
+;	ret			; and return
+;
+;tmpstr	.fill	9,0		; temp string (8 chars, 0 term)
+;
+; Determine if byte in A is a numeric '0'-'9'
+; Return with CF clear if it is numeric
+;
+isnum:
+	cp	'0'
+	jr	c,isnum1	; too low
+	cp	'9' + 1
+	jr	nc,isnum1	; too high
+	or	a		; clear CF
+	ret
+isnum1:
+	or	a		; clear CF
+	ccf			; set CF
+	ret
+;
+; Get numeric chars at DE and convert to number returned in A
+; Carry flag set on overflow
+;
+getnum:
+	ld	c,0		; C is working register
+getnum1:
+	ld	a,(de)		; get the active char
+	cp	'0'		; compare to ascii '0'
+	jr	c,getnum2	; abort if below
+	cp	'9' + 1		; compare to ascii '9'
+	jr	nc,getnum2	; abort if above
+;
+	; valid digit, add new digit to C
+	ld	a,c		; get working value to A
+	rlca			; multiply by 10
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	add	a,c		; ...
+	ret	c		; overflow, return with carry set
+	rlca			; ...
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+	ld	a,(de)		; get new digit
+	sub	'0'		; make binary
+	add	a,c		; add in working value
+	ret	c		; overflow, return with carry set
+	ld	c,a		; back to C
+;
+	inc	de		; bump to next char
+	jr	getnum1		; loop
+;
+getnum2:	; return result
+	ld	a,c		; return result in A
+	or	a		; with flags set, CF is cleared
+	ret
+;
+; Find (AND SKIP) whitespace at buffer adr in DE, returns with first
+; NON whitespace character in A.
+;
+findskipws:
+	ld	a,(de)		; get next char
+	or	a		; check for eol
+	ret	z		; done if so
+	cp	' '		; blank?
+	JR	z,skipws	; nope, done
+	inc	de		; bump buffer pointer
+	jr	findskipws	; and loop
+;
+; Skip whitespace at buffer adr in DE, returns with first
+; non-whitespace character in A.
+;
+skipws:
+	ld	a,(de)		; get next char
+	or	a		; check for eol
+	ret	z		; done if so
+	cp	' '		; blank?
+	ret	nz		; nope, done
+	inc	de		; bump buffer pointer
+	jr	skipws		; and loop
+;
+; Find (AND SKIP) "," at buffer adr in DE, returns with first
+; NON "," character in A.
+;
+findskipcomma:
+	ld	a,(de)		; get next char
+	or	a		; check for eol
+	ret	z		; done if so
+	cp	','		; blank?
+	JR	z,skipcomma	; nope, done
+	inc	de		; bump buffer pointer
+	jr	findskipcomma	; and loop
+;
+; Skip "," at buffer adr in DE, returns with first
+; non-comma character in A.
+;
+skipcomma:
+	ld	a,(de)		; get next char
+	or	a		; check for eol
+	ret	z		; done if so
+	cp	','		; blank?
+	ret	nz		; nope, done
+	inc	de		; bump buffer pointer
+	jr	skipcomma	; and loop
+;
+; Uppercase character in A
+;
+upcase:
+	cp	'a'			; below 'a'?
+	ret	c			; if so, nothing to do
+	cp	'z'+1			; above 'z'?
+	ret	nc			; if so, nothing to do
+	and	~$20			; convert character to lower
+	ret				; done
+;
+; -----------------------------
+; Add hl,a
+;   A register is destroyed!
+;
+;addhla:
+;	add	a,l
+;	ld	l,a
+;	ret	nc
+;	inc	h
+;	ret
+;
+;=======================================================================
+; Read a string on the console
+; (Code originally from RomLDR)
+;
+; Uses address $0080 in page zero for buffer
+; Input is zero terminated
+;
+rdln:
+	ld	de,cmdbuf		; init buffer address ptr
+rdln_nxt:
+ 	call	CIN			; get a character
+ 	cp	BS			; backspace?
+ 	jr	z,rdln_bs		; handle it if so
+ 	cp	DEL			; del/rubout?
+ 	jr	z,rdln_bs		; handle as backspace
+ 	cp	CR			; return?
+ 	jr	z,rdln_cr		; handle it if so
+;
+ 	; check for non-printing characters
+ 	cp	' '			; first printable is space char
+ 	jr	c,rdln_bel		; too low, beep and loop
+ 	cp	'~'+1			; last printable char
+ 	jr	nc,rdln_bel		; too high, beep and loop
+;
+ 	; need to check for buffer overflow here!!!
+ 	ld	hl,cmdbuf+cmdmax	; max cmd length
+ 	or	a			; clear carry
+ 	sbc	hl,de			; test for max
+ 	jr	z,rdln_bel		; at max, beep and loop
+;
+ 	; good to go, echo and store character
+ 	call	COUT			; echo character input
+ 	ld	(de),a			; save in buffer
+ 	inc	de			; inc buffer ptr
+ 	jr	rdln_nxt		; loop till done
+;
+rdln_bs:
+ 	ld	hl,cmdbuf		; start of buffer
+ 	or	a			; clear carry
+ 	sbc	hl,de			; subtract from cur buf ptr
+ 	jr	z,rdln_bel		; at buf start, just beep
+ 	;ld	hl,str_bs		; backspace sequence
+	ld	a,BS
+	call	COUT
+	ld	a,' '
+	call 	COUT
+	ld	a,BS
+	call	COUT
+ 	;call	prtstr			; send it
+ 	dec	de			; backup buffer pointer
+ 	jr	rdln_nxt		; and loop
+;
+rdln_bel:
+ 	ld	a,BEL			; Bell characters
+ 	call	COUT			; send it
+ 	jr	rdln_nxt		; and loop
+;
+rdln_cr:
+ 	xor	a			; null to A
+ 	ld	(de),a			; store terminator
+ 	ret
+;
+str_bs		.db	BS,' ',BS,0
+;
+;=======================================================================
+; Basic Input Output (Specific to Target)
+;=======================================================================
+;
+; Print character in A without destroying any registers
+;
+COUT:
+prtchr:
+	push	af
+	push	bc		; save registers
+	push	de
+	push	hl
+#ifdef ROMWBW
+	LD	BC, BF_CIOOUT<<8 | CIO_CONSOLE
+	LD	E,A
+	RST	08
+#endif
+#ifdef CPM
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+#endif
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+; WAIT FOR A CHARACTER FROM THE CONSOLE DEVICE AND RETURN IT IN A
+;
+CIN:	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+#ifdef ROMWBW
+	LD	BC, BF_CIOIN << 8 | CIO_CONSOLE
+	RST	08
+	LD	A,E
+#endif
+#ifdef CPM
+	; todo CONVERT TO BDOS CALL
+	LD	BC, BF_CIOIN << 8 | CIO_CONSOLE
+	RST	08
+	LD	A,E
+#endif
+	POP	HL
+	POP	DE
+	POP	BC
+	RET
+;
+;=======================================================================
+; General Working data
+;=======================================================================
+;
+stksav		.dw	0		; stack pointer saved at start
+;
+cmdbuf:		.FILL	cmdmax,0	; cmd inut buffer
+;
+		.fill	stksiz,0	; stack
+stack		.equ	$		; stack top
+;
+#ifdef ROMWBW
+;
+;=======================================================================
+; IT IS CRITICAL THAT THE FINAL BINARY BE EXACTLY NVR_SIZ BYTES.
+; THIS GENERATES FILLER AS NEEDED.  IT WILL ALSO FORCE AN ASSEMBLY
+; ERROR IF THE SIZE EXCEEDS THE SPACE ALLOCATED.
+;=======================================================================
+;
+SLACK	.EQU	(NVR_END - $)
+;
+#IF (SLACK < 0)
+	.ECHO	"*** NVRCONFIG APP IS TOO BIG!!!\n"
+	!!!	; FORCE AN ASSEMBLY ERROR
+#endif
+;
+	.FILL	SLACK,$00
+	.ECHO	"NVRCONFIG space remaining: "
+	.ECHO	SLACK
+	.ECHO	" bytes.\n"
+;
+	.NOLIST
+;
+#endif
+	.END
diff --git a/Source/HBIOS/ay38910.asm b/Source/HBIOS/ay38910.asm
index bd2671b9..6006b2a9 100644
--- a/Source/HBIOS/ay38910.asm
+++ b/Source/HBIOS/ay38910.asm
@@ -19,6 +19,15 @@
 ;  UNUSED BITS CAN BE READ BACK AND WRITTEN ON YM.
 ;  VOLTAGE LEVEL OUTPUT ON A AY-3-8910 IS LOW AND AROUND 2V ON YM2149.
 ;
+; THERE ARE TWO VARIANTS OF AY-3-8910 SOUND CARDS THAT HAVE BEEN
+; PRODUCED FOR THE RCBUS.  THE ONE PRODUCED BY ED BRINDLEY (EB) USES
+; THE SAME PORT FOR REGISTER SELECT (RSEL) AND REGISTER IN (RIN).
+; THE ONE PRODUCED BY MARTEN FELDTMANN (MF) USES THE PORT FOLLOWING
+; REGISTER SELECT (RSEL) FOR THE REGISTER IN (RIN) PORT.  THE FOLLOWING
+; EQUATE MUST BE SET CORRECTLY FOR THE HARDWARE BEING USED.  THIS
+; HAS NOT BEEN MOVED TO A CONFIG VARIABLE BECAUSE THE MF MODULE IS
+; RARELY ENCOUNTERED IN THE WILD.
+;
 AY_RCSND	.EQU	0		; 0 = EB MODULE, 1=MF MODULE
 ;
 	DEVECHO	"AY38910: MODE="
@@ -118,6 +127,7 @@ AY_FNTBL:
 	.DW	AY_QUERY
 	.DW	AY_DURATION
 	.DW	AY_DEVICE
+	.DW	AY_BEEP
 ;
 #IF (($ - AY_FNTBL) != (SND_FNCNT * 2))
 	.ECHO	"*** INVALID SND FUNCTION TABLE ***\n"
@@ -147,7 +157,6 @@ AY_NOISECNT	.EQU	1		; COUNT NUMBER OF NOISE CHANNELS
 ;
 ;	ANNOUNCE DEVICE ON CONSOLE. ACTIVATE DEVICE IF REQUIRED.
 ;	SETUP FUNCTION TABLES. SETUP THE DEVICE.
-;	ANNOUNCE DEVICE WITH BEEP. SET VOLUME OFF.
 ;	RETURN INITIALIZATION STATUS
 ;
 AY38910_INIT:
@@ -212,72 +221,22 @@ AY38910_INIT:
 	LD	A,$FF			; UNSUCCESSFULL INIT
 	RET
 ;
-AY_FND:	LD	IY, AY_IDAT		; SETUP FUNCTION TABLE
+AY_FND:
+	LD	IY, AY_IDAT		; SETUP FUNCTION TABLE
 	LD	BC, AY_FNTBL		; POINTER TO INSTANCE DATA
 	LD	DE, AY_IDAT		; BC := FUNCTION TABLE ADDRESS
 	CALL	SND_ADDENT		; DE := INSTANCE DATA PTR
 ;
-	CALL	AY_INIT			; SET DEFAULT CHIP CONFIGURATION
-;
-	LD	E,$07			; SET VOLUME TO 50%
-	CALL	AY_SETV			; ON ALL CHANNELS
-;
-;	LD	DE,(AY_R2CHBP*256)+$55	; BEEP ON CHANNEL B (CENTER)
-;	CALL	AY_WRTPSG		; R02 = $55 = 01010101
-	LD	DE,(AY_R3CHBP*256)+$00
-	CALL	AY_WRTPSG		; R03 = $00 = XXXX0000
-;
-#IF ((SYSTIM != TM_NONE) & (AYMODE != AYMODE_DUO))
-	LD	A, TICKFREQ / 3		; SCHEDULE IN 1/3 SECOND TO TURN OFF SOUND
-	LD	(AY_TIMTIK), A
-;
-	LD	HL, (VEC_TICK + 1)	; GET CUR TICKS VECTOR
-	LD	(AY_TIMHOOK), HL	; SAVE IT INTERNALLY
-	LD	HL, AY_TIMER		; INSTALL TIMER HOOK HANDLER
-	LD	(VEC_TICK + 1), HL
-;
-	LD	A, $02			; NOT READY & IN INTERUPT HANDLER
-	LD	(AY_READY), A
-#ELSE
- 	CALL	LDELAY			; HALF SECOND DELAY
- 	LD	E,$00			; SET VOLUME OFF
-	CALL	AY_SETV			; ON ALL CHANNELS
-	LD	A, $01			; READY & NOT IN INTERUPT HANDLER
-	LD	(AY_READY), A
-#ENDIF
-;
+	CALL	AY_RESET		; SET DEFAULT CHIP CONFIGURATION
 	XOR	A			; SUCCESSFULL INIT
 	RET
 ;
-#IF ((SYSTIM != TM_NONE) & (AYMODE != AYMODE_DUO))
-AY_TIMER:
-	LD	A, (AY_TIMTIK)
-	DEC	A
-	LD	(AY_TIMTIK), A
-	JR	NZ, AY_TIMER1
-;
-	LD	E,$00			; SET VOLUME OFF
-	CALL	AY_SETV			; ON ALL CHANNELS
-	LD	A, $01			; READY & NOT IN INTERUPT HANDLER
-	LD	(AY_READY), A
-;
-	LD	DE, AY_TIMER		; MAKE AY_TIMER A NO_OP HANDLER
-	LD	HL, AY_TIMER1
-	LD	BC, 3
-	LDIR
-;
-AY_TIMER1:
-	JP	0			; OVERWRITTEN WITH NEXT HANDLER
-AY_TIMHOOK:	.EQU	$ - 2
-
-AY_TIMTIK	.DB	0		; COUNT DOWN TO FINISH BOOT BEEP
-#ENDIF
-;
 ;======================================================================
 ;	INITIALIZE DEVICE
 ;======================================================================
 ;
 AY_INIT:
+	; HANDLE R7 SPECIAL
 #IF (AYMODE == AYMODE_NABU)
 	; I/O B=INPUT, I/O A=OUTPUT, NOISE CHANNEL C, B, A DISABLE, TONE CHANNEL C, B, A ENABLE
 	LD	DE,(AY_R7ENAB*256)+$78	; SET MIXER CONTROL / IO ENABLE.  $78 - 01 111 000
@@ -285,29 +244,21 @@ AY_INIT:
 	; I/O PORTS = OUTPUT, NOISE CHANNEL C, B, A DISABLE, TONE CHANNEL C, B, A ENABLE
 	LD	DE,(AY_R7ENAB*256)+$F8	; SET MIXER CONTROL / IO ENABLE.  $F8 - 11 111 000
 #ENDIF
-	JP	AY_WRTPSG		
-;
-AY_CHKREDY:
-	LD	A, (AY_READY)
-	BIT	0, A
-	RET	NZ
-
-	POP	HL			; REMOVE LAST RETURN ADDRESS
-	OR	$FF
-	RET				; RETURN NZ
-;
-;======================================================================
-;	SET VOLUME ALL CHANNELS
-;======================================================================
-;
-AY_SETV:
-	PUSH	BC
-	LD	B,AY_TONECNT		; NUMBER OF CHANNELS
-	LD	D,AY_R8AVOL		; BASE REGISTER FOR VOLUME
-AY_SV:	CALL	AY_WRTPSG		; CYCLING THROUGH ALL CHANNELS
-	INC	D
-	DJNZ	AY_SV
-	POP	BC
+	CALL	AY_WRTPSG		; SETUP R7
+;
+	; THEN JUST SET ALL OTHER REGISTERS TO ZERO
+	LD	E,0			; VALUE ZERO
+	LD	D,0			; START W/ R0
+	LD	B,7			; DO 7 REGISTERS (R0-R6)
+	CALL	AY_INIT1		; DO IT
+	INC	D			; SKIP R7
+	LD	B,6			; DO 6 MORE REGISTERS (R8-R13)
+	; FALL THRU TO DO IT
+;	
+AY_INIT1:
+	CALL	AY_WRTPSG		; WRITE REGISTER
+	INC	D			; BUMP TO NEXT
+	DJNZ	AY_INIT1		; LOOP
 	RET
 ;
 ;======================================================================
@@ -319,25 +270,15 @@ AY_SV:	CALL	AY_WRTPSG		; CYCLING THROUGH ALL CHANNELS
 ;
 AY_RESET:
 	AUDTRACE(AYT_INIT)
-	CALL	AY_CHKREDY		; RETURNS TO OUR CALLER IF NOT READY
-;
-	PUSH	DE
-	PUSH	HL
 	CALL	AY_INIT			; SET DEFAULT CHIP CONFIGURATION
 ;
-	AUDTRACE(AYT_VOLOFF)
-	LD	E,0			; SET VOLUME OFF
-	CALL	AY_SETV			; ON ALL CHANNELS
-;
+	; RESET DEFAULTS IN CASE OF AN IN-PLACE HBIOS RESTART
+	LD	HL,0
+	LD	(AY_PENDING_PERIOD),HL	; SET TONE PERIOD TO ZERO
+	LD	(AY_PENDING_DURATION),HL; SET DURATION TO ZERO
 	XOR	A			; SIGNAL SUCCESS
 	LD	(AY_PENDING_VOLUME),A	; SET VOLUME TO ZERO
-	LD	H,A
-	LD	L,A
-	LD	(AY_PENDING_PERIOD),HL	; SET TONE PERIOD TO ZERO
-;
-	POP	HL
-	POP	DE
-	RET
+	RET				; DONE, A=0 ABOVE
 ;
 ;======================================================================
 ;	SOUND DRIVER FUNCTION - VOLUME
@@ -400,12 +341,14 @@ AY_PLAY:
 	AUDTRACE(AYT_PLAY)
 	AUDTRACE_D
 	AUDTRACE_CR
-	CALL	AY_CHKREDY		; RETURNS TO OUR CALLER IF NOT READY
 ;
 	LD	A, (AY_PENDING_PERIOD + 1)	; CHECK THE HIGH BYTE OF THE PERIOD
 	INC	A
-	JR	Z, AY_PLAY1		; PERIOD IS TOO LARGE, UNABLE TO PLAY
+	JR	NZ, AY_PLAY1		; PERIOD IS OK, CONTINUE
+	OR	$FF			; ELSE TOO LARGE, SIGNAL FAILURE
+	RET				; AND RETURN
 ;
+AY_PLAY1:
 	PUSH	HL
 	PUSH	DE
 	LD	A,D			; LIMIT CHANNEL 0-2
@@ -418,7 +361,7 @@ AY_PLAY:
 	AUDTRACE_CR
 ;
 	LD	HL,AY_PENDING_PERIOD	; WRITE THE LOWER
-	ld	E,(HL)			; 8-BITS OF THE TONE PERIOD
+	LD	E,(HL)			; 8-BITS OF THE TONE PERIOD
 	CALL	AY_WRTPSG
 	INC	D			; NEXT REGISTER
 	INC	HL			; NEXT BYTE
@@ -453,18 +396,6 @@ AY_PLAY:
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
-AY_PLAY1:
-	PUSH	DE			; TURN VOLUME OFF TO STOP PLAYING
-	LD	A,D			; LIMIT CHANNEL 0-2
-	AND	$3			; AND INDEX TO THE
-	ADD	A,AY_R8AVOL		; CHANNEL VOLUME
-	LD	D,A			; REGISTER
-	LD	E,0
-	CALL	AY_WRTPSG		; SET VOL (E) IN CHANNEL REG (D)
-	POP	DE
-	OR	$FF			; SIGNAL FAILURE
-	RET
-;
 ;======================================================================
 ;	SOUND DRIVER FUNCTION - QUERY AND SUBFUNCTIONS
 ;======================================================================
@@ -532,22 +463,11 @@ AY_DEVICE:
 	RET
 ;
 ;======================================================================
-;	NON-BLOCKING INTERRUPT CODE
+;	SOUND DRIVER FUNCTION - BEEP
 ;======================================================================
 ;
-AY_DI:
-	LD	A, (AY_READY)
-	BIT	1, A
-	RET	NZ
-	HB_DI
-	RET
-;
-AY_EI:
-	LD	A, (AY_READY)
-	BIT	1, A
-	RET	NZ
-	HB_EI
-	RET
+AY_BEEP:
+	JP	SND_BEEP		; DEFER TO GENERIC CODE IN HBIOS
 ;
 ;======================================================================
 ;
@@ -557,7 +477,6 @@ AY_EI:
 ;======================================================================
 ;
 AY_WRTPSG:
-	CALL	AY_DI
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)		; GET CURRENT RTC LATCH VALUE
 	OR	%00001000		; SBC-V2-004 CHANGE
@@ -570,8 +489,10 @@ AY_WRTPSG:
 	OUT0	(Z180_DCNTL),A		; AND UPDATE DCNTL
 #ENDIF
 	LD	A,D			; SELECT THE REGISTER WE
+	EZ80_IO
 	OUT	(AY_RSEL),A		; WANT TO WRITE TO
 	LD	A,E			; WRITE THE VALUE TO
+	EZ80_IO
 	OUT	(AY_RDAT),A		; THE SELECTED REGISTER
 #IF (CPUFAM == CPU_Z180)
 	POP	AF			; GET SAVED DCNTL VALUE
@@ -581,14 +502,13 @@ AY_WRTPSG:
 	LD	A,(HB_RTCVAL)		; SBC-V2-004 CHANGE TO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
-	JP	AY_EI
+	RET
 ;
 ;======================================================================
 ;
 ;	READ FROM REGISTER D AND RETURN WITH RESULT IN E
 ;
 AY_RDPSG:
-	CALL	AY_DI
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)		; GET CURRENT RTC LATCH VALUE
 	OR	%00001000		; SBC-V2-004 CHANGE
@@ -601,7 +521,9 @@ AY_RDPSG:
 	OUT0	(Z180_DCNTL),A		; AND UPDATE DCNTL
 #ENDIF
 	LD	A,D			; SELECT THE REGISTER WE
+	EZ80_IO
 	OUT	(AY_RSEL),A		; WANT TO READ
+	EZ80_IO
 	IN	A,(AY_RIN)		; READ SELECTED REGISTER
 	LD	E,A
 #IF (CPUFAM == CPU_Z180)
@@ -612,15 +534,13 @@ AY_RDPSG:
 	LD	A,(HB_RTCVAL)		; SBC-V2-004 CHANGE TO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
-	JP	AY_EI
+	RET
 ;
 ;======================================================================
 ;
 AY_PENDING_PERIOD	.DW	0	; PENDING PERIOD (12 BITS)	; ORDER
 AY_PENDING_VOLUME	.DB	0	; PENDING VOL (8 BITS)		; SIGNIFICANT
 AY_PENDING_DURATION	.DW	0	; PENDING DURATION (16 BITS)
-AY_READY		.DB	0	; BIT 0 -> NZ DRIVER IS READY TO RECEIVE PLAY COMMAND
-					; BIT 1 -> NZ EXECUTING WITHIN TIMER HANDLER = DO NOT DIS/ENABLE INT
 ;
 #IF AUDIOTRACE
 AYT_INIT		.DB	"\r\nAY_INIT\r\n$"
diff --git a/Source/HBIOS/cfg_DUO.asm b/Source/HBIOS/cfg_DUO.asm
new file mode 100644
index 00000000..0e85f07a
--- /dev/null
+++ b/Source/HBIOS/cfg_DUO.asm
@@ -0,0 +1,380 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: DUO
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Duodyne", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_DUO		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	FALSE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_UNSUP	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$50		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$51		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$52		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$53		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$54		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$94		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$60		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	(7372800/8)	; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$56		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$42		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$42		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$88		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$88		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	7372800		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$58		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$A8		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$70		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$78		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$60		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	(7372800/4)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	0		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	(7372800/4)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_MBC	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_DUO	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	TRUE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_DUO	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$88		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$20		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$14		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	TRUE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	1		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$4E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	TRUE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$FF		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	FALSE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+ESPCONENABLE	.SET	TRUE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+HDSKTRACE	.SET	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$68		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$6C		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	TRUE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_SPP	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$48		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$EC		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_SPP	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_SPP	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_SPP	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_DUO	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_DUO	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	TRUE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	TRUE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$40		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_DUO	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_DYNO.asm b/Source/HBIOS/cfg_DYNO.asm
new file mode 100644
index 00000000..b3f7c09f
--- /dev/null
+++ b/Source/HBIOS/cfg_DYNO.asm
@@ -0,0 +1,360 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: DYNO
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Dyno", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_DYNO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$0C		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	TRUE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_DYNO	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$4C		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_NONE	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_EPITX.asm b/Source/HBIOS/cfg_EPITX.asm
new file mode 100644
index 00000000..6c1fdae5
--- /dev/null
+++ b/Source/HBIOS/cfg_EPITX.asm
@@ -0,0 +1,386 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: EPITX
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "MiniITX"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_EPITX	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$0C		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+; TODO - ADD PS/2 BITBANGER
+VDAEMU_SERKBD	.SET	$00		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	2		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	2		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$A0		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$A8		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_EPFDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_EPITX	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$40		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	2		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_FZ80.asm b/Source/HBIOS/cfg_FZ80.asm
new file mode 100644
index 00000000..ed907a20
--- /dev/null
+++ b/Source/HBIOS/cfg_FZ80.asm
@@ -0,0 +1,395 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: FZ80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "S100 FPGA Z80", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_FZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$FF		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	TRUE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	TRUE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$34		; SSER: STATUS PORT
+SSERDATA	.SET	$35		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	TRUE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	TRUE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	TRUE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	FALSE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$30		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_FZ80	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	TRUE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_S100	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$C7		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_GMZ180.asm b/Source/HBIOS/cfg_GMZ180.asm
new file mode 100644
index 00000000..8539cbe8
--- /dev/null
+++ b/Source/HBIOS/cfg_GMZ180.asm
@@ -0,0 +1,391 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: GMZ180
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "GM STD BUS Z180", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_GMZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$84		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	TRUE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	TRUE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+GM7303BASE	.SET	$30		; BASE ADDRESS FOR GM3703 BOARD  
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	TRUE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_GIDE	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_GM	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$18		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_HEATH.asm b/Source/HBIOS/cfg_HEATH.asm
new file mode 100644
index 00000000..aeec7d78
--- /dev/null
+++ b/Source/HBIOS/cfg_HEATH.asm
@@ -0,0 +1,385 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: HEATH
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "HEATHKIT", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_HEATH	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	FALSE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	16384000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	FALSE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	TRUE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$E8		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$E0		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$D8		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$D0		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	TRUE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_MSX	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_MASTER.asm b/Source/HBIOS/cfg_MASTER.asm
new file mode 100644
index 00000000..a4986b94
--- /dev/null
+++ b/Source/HBIOS/cfg_MASTER.asm
@@ -0,0 +1,488 @@
+;
+;==================================================================================================
+;   ROMWBW GLOBAL MASTER CONFIGURATION FILE
+;==================================================================================================
+;
+; THIS FILE IS THE GLOBAL MASTER CONFIGURATION FILE FOR THE ROMWBW
+; BUILD PROCESS.  IT DEFINES ALL POSSIBLE CONFIGURATION SETTINGS
+; AVAILABLE WITHIN ROMWBW.  MANY SETTINGS WILL NOT BE APPLICABLE TO
+; ALL OF THE DIFFERENT ROMWBW PLATFORMS.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; EACH FILE BELOW THIS TOP MASTER CONFIGURATION FILE INHERITS THE
+; CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY OVERRIDE THESE
+; SETTINGS AS DESIRED.
+;
+; OTHER THAN THIS TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE.  THE TOP TWO FILES SHOULD NOT BE MODIFIED.  TO CUSTOMIZE YOUR
+; BUILD SETTINGS, YOU SHOULD MODIFY THE DEFAULT BUILD SETTINGS
+; (Config/<platform>_std.asm) OR PREFERABLY CREATE AN OPTIONAL CUSTOM
+; USER SETTINGS FILE THAT INCLUDES THE DEFAULT BUILD SETTINGS FILE (SEE
+; EXAMPLE Config/SBC_custom.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** NOTE: THIS FILE USES ".EQU" TO DEFINE ALL SETTINGS.  ALL OTHER
+; CONFIGURATION FILES BELOW THIS FILE MUST USE ".SET" TO OVERRIDE
+; SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT TO USE ".EQU"
+; TO REDEFINE A PREVIOUS DEFINITION.
+;
+#DEFINE PLATFORM_NAME "RomWBW", " [", CONFIG, "]"
+;
+#INCLUDE "hbios.inc"
+;
+PLATFORM	.EQU	PLT_NONE	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.EQU	CPU_NONE	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.EQU	BIOS_NONE	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.EQU	FALSE		; ENABLE FONT COMPRESSION
+TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.EQU	FALSE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.EQU	1000000		; CPU OSC FREQ IN MHZ
+INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.EQU	SER_9600_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.EQU	MM_NONE		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
+MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
+MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.EQU	FALSE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+Z280_MEMLOWAIT	.EQU	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.EQU	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.EQU	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.EQU	0		; Z280: INT ACK WAIT STATUS (0-3)
+Z280_TIMER	.EQU	FALSE		; Z280: ENABLE INTERNAL Z280 SYSTEM PERIODIC TIMER
+;
+N8_PPI0		.EQU	$80		; N8: FIRST PARALLEL PORT REGISTERS BASE ADR
+N8_PPI1		.EQU	$84		; N8: SECOND PARALLEL PORT REGISTERS BASE ADR
+N8_RTC		.EQU	$88		; N8: RTC LATCH REGISTER ADR
+N8_ACR		.EQU	$94		; N8: AUXILLARY CONTROL REGISTER (ACR) ADR
+N8_RMAP		.EQU	$96		; N8: ROM PAGE REGISTER ADR
+N8_DEFACR	.EQU	$1B		; N8: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
+RPH_PPI0	.EQU	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
+RPH_RTC		.EQU	$84		; RPH: RTC LATCH REGISTER ADR
+RPH_ACR		.EQU	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
+RPH_DEFACR	.EQU	$00		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
+MK4_IDE		.EQU	$80		; MK4: IDE REGISTERS BASE ADR
+MK4_XAR		.EQU	$88		; MK4: EXTERNAL ADDRESS REGISTER (XAR) ADR
+MK4_SD		.EQU	$89		; MK4: SD CARD CONTROL REGISTER ADR
+MK4_RTC		.EQU	$8A		; MK4: RTC LATCH REGISTER ADR
+;
+RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
+CTCOSC		.EQU	614400		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.EQU	$6F		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.EQU	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.EQU	FALSE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.EQU	FALSE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.EQU	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.EQU	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.EQU	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+GM7303BASE	.EQU	$30		; BASE ADDRESS FOR GM3703 BOARD  
+;
+BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
+SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTCMODE_[PCF]
+;
+DS5RTCENABLE	.EQU	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.EQU	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.EQU	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.EQU	$FF		; SSER: STATUS PORT
+SSERDATA	.EQU	$FF		; SSER: DATA PORT
+SSERIRDY	.EQU	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.EQU	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.EQU	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.EQU	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.EQU	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.EQU	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.EQU	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.EQU	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.EQU	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.EQU	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.EQU	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.EQU	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.EQU	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.EQU	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.EQU	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.EQU	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.EQU	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.EQU	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.EQU	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.EQU	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.EQU	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.EQU	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.EQU	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+Z2UOSC		.EQU	1843200		; Z2U: OSC FREQUENCY IN MHZ
+Z2UOSCEXT	.EQU	TRUE		; Z2U: USE EXTERNAL OSCILLATOR
+Z2U0BASE	.EQU	$10		; Z2U 0: BASE I/O ADDRESS
+Z2U0CFG		.EQU	DEFSERCFG	; Z2U 0: SERIAL LINE CONFIG
+Z2U0HFC		.EQU	FALSE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
+;
+ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.EQU	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.EQU	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+GDCMODE		.EQU	GDCMODE_RPH	; GDC: GDC MODE: GDCMODE_[NONE|ECB|RPH]
+GDCMON		.EQU	GDCMON_EGA      ; GDC: GDC MONITOR SETUP: GDCMON_[NONE|CGA|EGA]
+TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.EQU	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.EQU	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.EQU	FDMODE_NONE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.EQU	IDEMODE_NONE	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.EQU	$14		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.EQU	SDMODE_NONE	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.EQU	FALSE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.EQU	FALSE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.EQU	FALSE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.EQU	FALSE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
+;
+ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+ESPCONENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
+;
+HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+HDSKTRACE	.EQU	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+;
+PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.EQU	LPTMODE_NONE	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.EQU	$E8		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.EQU	$EC		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.EQU	PPAMODE_NONE	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.EQU	IMMMODE_NONE	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.EQU	IMMMODE_NONE	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+SN76489CHNOUT	.EQU	SNCHAN_BOTH	; SN: CHANNEL OUTPUTS: SNCHAN_[BOTH|LEFT|RIGHT]
+AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.EQU	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.EQU	AYMODE_NONE	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.EQU	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
+;
+; EZ80 SETTINGS
+;
+EZ80TMR_NONE	.EQU	0		; DO NOT USE ON-BOARD TIMER TO GENERATE TICKS
+EZ80TMR_INT	.EQU	1		; MARSHALL TIMER TICK INTERRUPTS FROM EZ80 TO HBIOS
+EZ80TMR_FIRM	.EQU	2		; DELEGATE SYS TIMER HBIOS CALL TO EZ80 FIRMWARE (TIMER TICK INTS DISABLED)
+;
+EZ80UARTENABLE	.EQU	FALSE		; EZ80 UART: ENABLE EZ80 UART0 DRIVER (EZ80UART.ASM)
+EZ80RTCENABLE	.EQU	FALSE		; EZ80 ON CHIP RTC
+EZ80TIMER	.EQU	EZ80TMR_FIRM	; EZ80: TIMER TICK MODEL: EZ80TMR_[INT|FIRM]
+EZ80IOBASE	.EQU	$FF		; EZ80 I/O BASE ADDRESS FOR EXTERNAL IO
+;
+; BUS TIMING FOR PAGED MEMORY ACCESS (CS3)
+EZ80_MEM_CYCLES	.EQU	3		; MEMORY BUS CYCLES (1-15) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CYCLES
+EZ80_MEM_MIN_NS	.EQU	100		; CALCULATE AT BOOT TIME THE REQUIRED W/S OR B/C, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+EZ80_MEM_WS	.EQU	5		; MEMORY WAIT STATES (0-7) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_WAIT
+EZ80_MEM_MIN_WS	.EQU	0		; MINIMUM WAIT STATES TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+;
+; BUS TIMING FOR EXTERNAL I/O ACCESS (CS2)
+EZ80_IO_CYCLES	.EQU	4		; IO BUS CYCLES (1-15) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CYCLES
+EZ80_IO_WS	.EQU	5		; IO WAIT STATES (0-7) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_WAIT
+EZ80_IO_MIN_NS	.EQU	320		; CALCULATE AT BOOT TIME THE REQUIRED W/S OR B/C, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+EZ80_IO_MIN_WS	.EQU	6		; MINIMUM WAIT STATES TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+;
+; APPLY CYCLES, W/S OR CALCULATE CYCLES BASED ON DESIRED PERIOD
+EZ80_WSMD_TYP	.EQU	EZ80WSMD_CALC	; BUS WAIT STATE CONFIG: EZ80WSMD_[CALC|CYCLES|WAIT]
+;
+; BUS TIMING FOR ON CHIP ROM
+;
+EZ80_FLSH_WS		.EQU	1		; WAIT STATES FOR ON CHIP FLASH (0-7)
+EZ80_FLSH_MIN_NS	.EQU	60		; MINIMUM WAIT STATES TO APPLY TO ON-CHIP FLASH, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+EZ80_FWSMD_TYP		.EQU	EZ80WSMD_CALC	; WAIT STATE TYPE: EZ80RMMD_[CALC|WAIT] (CYCLES NOT ALLOWED)
diff --git a/Source/HBIOS/cfg_MBC.asm b/Source/HBIOS/cfg_MBC.asm
new file mode 100644
index 00000000..b523be30
--- /dev/null
+++ b/Source/HBIOS/cfg_MBC.asm
@@ -0,0 +1,366 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: MBC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Nhyodyne", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_MBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_HILO	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_LOW		; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_MBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPCL_RAM	.SET	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
+MPCL_ROM	.SET	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
+;
+RTCIO		.SET	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	(4915200/8)	; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	3		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$68		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$80		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$88		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$B0		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_MBC	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MBC	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	TRUE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_MBC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$20		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$14		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+ESPCONENABLE	.SET	TRUE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+HDSKTRACE	.SET	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+;
+PIOENABLE	.SET	TRUE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_SPP	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$E8		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$EC		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_SPP	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_SPP	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_SPP	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_MBC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	TRUE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_MBC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_MK4.asm b/Source/HBIOS/cfg_MK4.asm
new file mode 100644
index 00000000..f2990440
--- /dev/null
+++ b/Source/HBIOS/cfg_MK4.asm
@@ -0,0 +1,363 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: MK4
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Mark IV", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_MK4		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+MK4_IDE		.SET	$80		; MK4: IDE REGISTERS BASE ADR
+MK4_XAR		.SET	$88		; MK4: EXTERNAL ADDRESS REGISTER (XAR) ADR
+MK4_SD		.SET	$89		; MK4: SD CARD CONTROL REGISTER ADR
+MK4_RTC		.SET	$8A		; MK4: RTC LATCH REGISTER ADR
+;
+RTCIO		.SET	MK4_RTC		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	6		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	TRUE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$18		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$80		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$C0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$C8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$D0		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$D8		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$B0		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_MK4	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$80		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_DIDE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$20		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$28		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$28		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	FALSE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	FALSE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_DIDE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$30		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$38		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$38		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	FALSE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	FALSE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	2		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$14		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$20		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	TRUE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_NONE	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$E8		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$EC		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_SCG	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_ECB	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_MON.asm b/Source/HBIOS/cfg_MON.asm
new file mode 100644
index 00000000..fea9559d
--- /dev/null
+++ b/Source/HBIOS/cfg_MON.asm
@@ -0,0 +1,390 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: MON
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Monsputer", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_MON		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	4000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_MON		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_N8.asm b/Source/HBIOS/cfg_N8.asm
new file mode 100644
index 00000000..92653bb0
--- /dev/null
+++ b/Source/HBIOS/cfg_N8.asm
@@ -0,0 +1,356 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: N8
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RetroBrew N8", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_N8		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_N8		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+N8_PPI0		.SET	$80		; N8: FIRST PARALLEL PORT REGISTERS BASE ADR
+N8_PPI1		.SET	$84		; N8: SECOND PARALLEL PORT REGISTERS BASE ADR
+N8_RTC		.SET	$88		; N8: RTC LATCH REGISTER ADR
+N8_ACR		.SET	$94		; N8: AUXILLARY CONTROL REGISTER (ACR) ADR
+N8_RMAP		.SET	$96		; N8: ROM PAGE REGISTER ADR
+N8_DEFACR	.SET	$1B		; N8: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
+RTCIO		.SET	N8_RTC		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	N8_PPI0		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	N8_PPI0		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	5		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	TRUE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$C0		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$C8		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$D0		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$D8		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$B0		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_N8	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	N8_PPI0		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	N8_PPI0		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	N8_PPI0		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_NABU.asm b/Source/HBIOS/cfg_NABU.asm
new file mode 100644
index 00000000..eb6a7742
--- /dev/null
+++ b/Source/HBIOS/cfg_NABU.asm
@@ -0,0 +1,395 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: NABU
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "NABU Personal Computer", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_NABU	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	3580000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_NABU	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$00		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	TRUE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$48		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_NABU	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	TRUE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	TRUE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_NABU	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_RCEZ80.asm b/Source/HBIOS/cfg_RCEZ80.asm
new file mode 100644
index 00000000..edb7f22c
--- /dev/null
+++ b/Source/HBIOS/cfg_RCEZ80.asm
@@ -0,0 +1,430 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: RCZE80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_RCEZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_EZ80	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	20000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	TRUE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	CPUOSC/4	; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	CPUOSC/4	; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
+;
+; EZ80 SETTINGS
+;
+EZ80TMR_NONE	.SET	0		; DO NOT USE ON-BOARD TIMER TO GENERATE TICKS
+EZ80TMR_INT	.SET	1		; MARSHALL TIMER TICK INTERRUPTS FROM EZ80 TO HBIOS
+EZ80TMR_FIRM	.SET	2		; DELEGATE SYS TIMER HBIOS CALL TO EZ80 FIRMWARE (TIMER TICK INTS DISABLED)
+;
+EZ80UARTENABLE	.SET	TRUE		; EZ80 UART: ENABLE EZ80 UART0 DRIVER (EZ80UART.ASM)
+EZ80RTCENABLE	.SET	TRUE		; EZ80 ON CHIP RTC
+EZ80TIMER	.SET	EZ80TMR_FIRM	; EZ80: TIMER TICK MODEL: EZ80TMR_[INT|FIRM]
+EZ80IOBASE	.SET	$FF		; EZ80 I/O BASE ADDRESS FOR EXTERNAL IO
+;
+; BUS TIMING FOR PAGED MEMORY ACCESS (CS3)
+EZ80_MEM_CYCLES	.SET	3		; MEMORY BUS CYCLES (1-15) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CYCLES
+EZ80_MEM_MIN_NS	.SET	100		; CALCULATE AT BOOT TIME THE REQUIRED W/S OR B/C, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+EZ80_MEM_WS	.SET	5		; MEMORY WAIT STATES (0-7) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_WAIT
+EZ80_MEM_MIN_WS	.SET	0		; MINIMUM WAIT STATES TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+;
+; BUS TIMING FOR EXTERNAL I/O ACCESS (CS2)
+EZ80_IO_CYCLES	.SET	4		; IO BUS CYCLES (1-15) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CYCLES
+EZ80_IO_WS	.SET	7		; IO WAIT STATES (0-7) TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_WAIT
+EZ80_IO_MIN_NS	.SET	250		; CALCULATE AT BOOT TIME THE REQUIRED W/S OR B/C, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+
+; THE MINMUM W/S SHOULD BE AT LEAST 1 GREATER THAN THE HOLD TRIGGER COUNT PROGRAMMED WITHIN THE PLD OF THE
+; EZ80 INTERFACE MODULE.  SEE THE EZ80-CPU.PLD FILE WITHIN THE EZ80 FIRMWARE CODE BASE
+EZ80_IO_MIN_WS	.SET	7		; MINIMUM WAIT STATES TO APPLY, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+;
+; APPLY CYCLES, W/S OR CALCULATE CYCLES BASED ON DESIRED PERIOD
+EZ80_WSMD_TYP	.SET	EZ80WSMD_CALC	; BUS WAIT STATE CONFIG: EZ80WSMD_[CALC|CYCLES|WAIT]
+;
+; BUS TIMING FOR ON CHIP ROM
+;
+EZ80_FLSH_WS		.SET	1		; WAIT STATES FOR ON CHIP FLASH (0-7)
+EZ80_FLSH_MIN_NS	.SET	60		; MINIMUM WAIT STATES TO APPLY TO ON-CHIP FLASH, IF EZ80_WSMD_TYP = EZ80WSMD_CALC
+EZ80_FWSMD_TYP		.SET	EZ80WSMD_CALC	; WAIT STATE TYPE: EZ80RMMD_[CALC|WAIT] (CYCLES NOT ALLOWED)
diff --git a/Source/HBIOS/cfg_RCZ180.asm b/Source/HBIOS/cfg_RCZ180.asm
new file mode 100644
index 00000000..e9bbc699
--- /dev/null
+++ b/Source/HBIOS/cfg_RCZ180.asm
@@ -0,0 +1,390 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: RCZ180
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_RCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$0C		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	TRUE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$AA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_RCZ280.asm b/Source/HBIOS/cfg_RCZ280.asm
new file mode 100644
index 00000000..bf6ce0c1
--- /dev/null
+++ b/Source/HBIOS/cfg_RCZ280.asm
@@ -0,0 +1,400 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: RCZ280
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_RCZ280	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z280	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	24000000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z280_MEMLOWAIT	.SET	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
+Z280_MEMHIWAIT	.SET	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
+Z280_IOWAIT	.SET	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z280_INTWAIT	.SET	0		; Z280: INT ACK WAIT STATUS (0-3)
+Z280_TIMER	.SET	TRUE		; Z280: ENABLE INTERNAL Z280 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	TRUE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+Z2UOSC		.SET	1843200		; Z2U: OSC FREQUENCY IN MHZ
+Z2UOSCEXT	.SET	TRUE		; Z2U: USE EXTERNAL OSCILLATOR
+Z2U0BASE	.SET	$10		; Z2U 0: BASE I/O ADDRESS
+Z2U0CFG		.SET	DEFSERCFG	; Z2U 0: SERIAL LINE CONFIG
+Z2U0HFC		.SET	FALSE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
+;
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	7372800		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	7372800		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z280	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_RCZ80.asm b/Source/HBIOS/cfg_RCZ80.asm
new file mode 100644
index 00000000..d7cf922c
--- /dev/null
+++ b/Source/HBIOS/cfg_RCZ80.asm
@@ -0,0 +1,395 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: RCZ80
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_RCZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	CPUOSC		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+SKZDIV		.SET	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+WDOGIO		.SET	$6E		; WATCHDOG REGISTER ADR
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	TRUE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+ACIADEBUG	.SET	FALSE		; ACIA: ENABLE DEBUG OUTPUT
+ACIACNT		.SET	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
+ACIA0BASE	.SET	$80		; ACIA 0: REGISTERS BASE ADR
+ACIA0CLK	.SET	CPUOSC		; ACIA 0: OSC FREQ IN HZ
+ACIA0DIV	.SET	1		; ACIA 0: SERIAL CLOCK DIVIDER
+ACIA0CFG	.SET	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
+ACIA1BASE	.SET	$40		; ACIA 1: REGISTERS BASE ADR
+ACIA1CLK	.SET	CPUOSC		; ACIA 1: OSC FREQ IN HZ
+ACIA1DIV	.SET	1		; ACIA 1: SERIAL CLOCK DIVIDER
+ACIA1CFG	.SET	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$0C		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_RPH.asm b/Source/HBIOS/cfg_RPH.asm
new file mode 100644
index 00000000..1365f5e7
--- /dev/null
+++ b/Source/HBIOS/cfg_RPH.asm
@@ -0,0 +1,344 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: RPH
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Rhyophyre", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_RPH		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	TRUE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_RPH		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+;
+Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RPH_PPI0	.SET	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
+RPH_RTC		.SET	$84		; RPH: RTC LATCH REGISTER ADR
+RPH_ACR		.SET	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
+RPH_DEFACR	.SET	$20		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
+RTCIO		.SET	RPH_RTC		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	RPH_PPI0	; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	RPH_PPI0	; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	TRUE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+GDCMODE		.SET	GDCMODE_RPH	; GDC: GDC MODE: GDCMODE_[NONE|ECB|RPH]
+GDCMON		.SET	GDCMON_EGA      ; GDC: GDC MONITOR SETUP: GDCMON_[NONE|CGA|EGA]
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_N8	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	RPH_PPI0	; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	RPH_PPI0	; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	FALSE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	FALSE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	RPH_PPI0	; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_S100.asm b/Source/HBIOS/cfg_S100.asm
new file mode 100644
index 00000000..4fbfc00c
--- /dev/null
+++ b/Source/HBIOS/cfg_S100.asm
@@ -0,0 +1,380 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: S100
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "S100", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_S100	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_57600_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	1		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	2		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$0C		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_SC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$18		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_SBC.asm b/Source/HBIOS/cfg_SBC.asm
new file mode 100644
index 00000000..ded55bd7
--- /dev/null
+++ b/Source/HBIOS/cfg_SBC.asm
@@ -0,0 +1,345 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: SBC
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "RetroBrew SBC", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPCL_RAM	.SET	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
+MPCL_ROM	.SET	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
+;
+RTCIO		.SET	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	2		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	3		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	614400		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	7		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	TRUE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$68		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$80		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$18		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$C0		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$C8		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$D0		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$D8		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$B0		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.SET	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.SET	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.SET	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.SET	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.SET	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$20		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$14		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+HDSKTRACE	.SET	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.SET	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.SET	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+UFBASE		.SET	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_SCG	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_ECB	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_SCZ180.asm b/Source/HBIOS/cfg_SCZ180.asm
new file mode 100644
index 00000000..280e9b21
--- /dev/null
+++ b/Source/HBIOS/cfg_SCZ180.asm
@@ -0,0 +1,390 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: SCZ180
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Small Computer", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_SCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.SET	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RTCIO		.SET	$0C		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	TRUE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_SC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$0E		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	TRUE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$AA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+DUARTCNT	.SET	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
+DUART0BASE	.SET	$A0		; DUART 0: BASE ADDRESS OF CHIP
+DUART0ACFG	.SET	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
+DUART0BCFG	.SET	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
+DUART1BASE	.SET	$40		; DUART 1: BASE ADDRESS OF CHIP
+DUART1ACFG	.SET	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
+DUART1BCFG	.SET	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	4		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$80		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$88		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$A0		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$A8		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCIINTS	.SET	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+ASCISWAP	.SET	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.SET	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.SET	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.SET	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.SET	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.SET	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.SET	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE0BASE	.SET	$10		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.SET	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.SET	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.SET	TRUE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.SET	TRUE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.SET	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE1BASE	.SET	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.SET	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.SET	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.SET	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.SET	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.SET	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC|GIDE]
+IDE2BASE	.SET	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.SET	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.SET	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.SET	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.SET	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$20		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.SET	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.SET	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.SET	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.SET	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
+CHTRACE		.SET	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHUSBTRACE	.SET	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHSDTRACE	.SET	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+CHCNT		.SET	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
+CH0BASE		.SET	$3E		; CH 0: BASE I/O ADDRESS
+CH0USBENABLE	.SET	TRUE		; CH 0: ENABLE USB DISK
+CH0SDENABLE	.SET	FALSE		; CH 0: ENABLE SD DISK
+CH1BASE		.SET	$3C		; CH 1: BASE I/O ADDRESS
+CH1USBENABLE	.SET	TRUE		; CH 1: ENABLE USB DISK
+CH1SDENABLE	.SET	FALSE		; CH 1: ENABLE SD DISK
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.SET	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+LPTMODE		.SET	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
+LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
+LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+LPT0BASE	.SET	$18		; LPT 0: REGISTERS BASE ADR
+LPT1BASE	.SET	$00		; LPT 1: REGISTERS BASE ADR
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+PPACNT		.SET	1		; PPA: NUMBER OF PPA DEVICES (1-2)
+PPATRACE	.SET	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPAMODE		.SET	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
+PPA0BASE	.SET	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
+PPA1BASE	.SET	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+IMMCNT		.SET	1		; IMM: NUMBER OF IMM DEVICES (1-2)
+IMMTRACE	.SET	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IMMMODE		.SET	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
+IMM0BASE	.SET	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
+IMM1BASE	.SET	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+SYQCNT		.SET	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
+SYQTRACE	.SET	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SYQMODE		.SET	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
+SYQ0BASE	.SET	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
+SYQ1BASE	.SET	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AUDIOTRACE	.SET	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.SET	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
+SNMODE		.SET	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
+;
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
+AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+;
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_UNA.asm b/Source/HBIOS/cfg_UNA.asm
new file mode 100644
index 00000000..4fe90615
--- /dev/null
+++ b/Source/HBIOS/cfg_UNA.asm
@@ -0,0 +1,42 @@
+;
+;==================================================================================================
+;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR UNA
+;==================================================================================================
+;
+; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
+; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
+; UNDER THIS DIRECTORY.
+;
+; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
+; FOR THE PLATFORM.
+;
+#DEFINE PLATFORM_NAME "UNA", " [", CONFIG, "]"
+;
+#INCLUDE "../UBIOS/ubios.inc"
+;
+;PLATFORM	.EQU	PLT_UNA		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.EQU	BIOS_UNA	; HARDWARE BIOS: BIOS_[WBW|UNA]
+;
+FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+;
+DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+;
+CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.EQU	0		; NOT SUPPORTED ON UNA
+;
+MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
+;
+RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
+;
+DSKYENABLE	.EQU	FALSE		; ENABLES DSKY (DO NOT COMBINE WITH PPIDE)
diff --git a/Source/HBIOS/cfg_Z80RETRO.asm b/Source/HBIOS/cfg_Z80RETRO.asm
new file mode 100644
index 00000000..a6c9d088
--- /dev/null
+++ b/Source/HBIOS/cfg_Z80RETRO.asm
@@ -0,0 +1,311 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: Z80RETRO
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Z80Retro", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_Z80RETRO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$60		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$61		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$62		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$63		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$64		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$40		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER (too fast for RomWBW right now)
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	0		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	1		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	7372800		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	$00		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$FF		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	DEFSERCFG	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIODEBUG	.SET	FALSE		; SIO: ENABLE DEBUG OUTPUT
+SIOBOOT		.SET	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
+SIOCNT		.SET	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+SIOINTS		.SET	TRUE		; SIO: INCLUDE SIO INTERRUPT SUPPORT UNDER IM1/2/3
+SIO0MODE	.SET	SIOMODE_Z80R	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO0BASE	.SET	$80		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.SET	CPUOSC/2	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACFG	.SET	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
+SIO0ACTCC	.SET	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.SET	CPUOSC/2	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BCFG	.SET	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
+SIO0BCTCC	.SET	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1MODE	.SET	SIOMODE_Z80R	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
+SIO1BASE	.SET	$84		; SIO 1: REGISTERS BASE ADR
+SIO1ACLK	.SET	CPUOSC/2	; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1ACFG	.SET	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
+SIO1ACTCC	.SET	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO1BCLK	.SET	CPUOSC/2	; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO1BCFG	.SET	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
+SIO1BCTCC	.SET	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_Z80R	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_ZETA.asm b/Source/HBIOS/cfg_ZETA.asm
new file mode 100644
index 00000000..7640bf05
--- /dev/null
+++ b/Source/HBIOS/cfg_ZETA.asm
@@ -0,0 +1,281 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: ZETA
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Zeta", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_ZETA	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPCL_RAM	.SET	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
+MPCL_ROM	.SET	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
+;
+RTCIO		.SET	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$68		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_ZETA	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_ZETA2.asm b/Source/HBIOS/cfg_ZETA2.asm
new file mode 100644
index 00000000..11662620
--- /dev/null
+++ b/Source/HBIOS/cfg_ZETA2.asm
@@ -0,0 +1,292 @@
+;
+;==================================================================================================
+;   ROMWBW PLATFORM CONFIGURATION DEFAULTS FOR PLATFORM: ZETA2
+;==================================================================================================
+;
+; THIS FILE DEFINES THE DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD,
+; YOU SHOULD OVERRIDE SETTINGS YOU WANT USING A CONFIGURATION FILE IN
+; THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.  IT IS MAINTAINED BY THE
+; AUTHORS OF ROMWBW.  TO OVERRIDE SETTINGS YOU SHOULD USE A
+; CONFIGURATION FILE IN THE CONFIG DIRECTORY UNDER THIS DIRECTORY.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.  TO CUSTOMIZE YOUR BUILD SETTINGS YOU SHOULD MODIFY THE
+; DEFAULT BUILD SETTINGS (Config/<platform>_std.asm) OR PREFERABLY
+; CREATE AN OPTIONAL CUSTOM USER SETTINGS FILE THAT INCLUDES THE DEFAULT
+; BUILD SETTINGS FILE (SEE EXAMPLE Config/SBC_user.asm).
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+#DEFINE PLATFORM_NAME "Zeta 2", " [", CONFIG, "]"
+;
+#INCLUDE "cfg_MASTER.asm"
+;
+PLATFORM	.SET	PLT_ZETA2	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCEZ80|RCZ180|EZZ80|SCZ180|GMZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|EPITX|MON|STDZ180|NABU|FZ80]
+CPUFAM		.SET	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280|EZ80]
+BIOS		.SET	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.SET	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.SET	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.SET	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.SET	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+BOOT_DELAY	.SET	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
+AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+;
+CPUSPDCAP	.SET	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.SET	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.SET	8000000		; CPU OSC FREQ IN MHZ
+INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.SET	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE		.SET	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
+APP_BNKS	.SET	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
+MPGSEL_0	.SET	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_1	.SET	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_2	.SET	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
+MPGSEL_3	.SET	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
+MPGENA		.SET	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
+;
+RTCIO		.SET	$70		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.SET	$20		; CTC BASE I/O ADDRESS
+CTCTIMER	.SET	TRUE		; ENABLE CTC PERIODIC TIMER
+CTCMODE		.SET	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
+CTCPRE		.SET	256		; PRESCALE CONSTANT (1-256)
+CTCPRECH	.SET	0		; PRESCALE CHANNEL (0-3)
+CTCTIMCH	.SET	1		; TIMER CHANNEL (0-3)
+CTCOSC		.SET	921600		; CTC CLOCK FREQUENCY
+;
+PCFENABLE	.SET	FALSE		; ENABLE PCF8584 I2C CONTROLLER
+PCFBASE		.SET	$F0		; PCF8584 BASE I/O ADDRESS
+;
+EIPCENABLE	.SET	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.SET	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.SET	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+FPLED_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL LEDS
+FPLED_IO	.SET	$00		; FP: PORT ADDRESS FOR FP LEDS
+FPLED_INV	.SET	FALSE		; FP: LED BITS ARE INVERTED
+FPLED_DSKACT	.SET	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
+FPSW_ENABLE	.SET	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
+FPSW_IO		.SET	$00		; FP: PORT ADDRESS FOR FP SWITCHES
+FPSW_INV	.SET	FALSE		; FP: SWITCH BITS ARE INVERTED
+;
+DIAGLVL		.SET	DL_CRITICAL	; ERROR LEVEL REPORTING
+;
+LEDENABLE	.SET	FALSE		; ENABLES STATUS LED (SINGLE LED)
+LEDMODE		.SET	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
+LEDPORT		.SET	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.SET	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+DSKYDSKACT	.SET	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+ICMPPIBASE	.SET	$60		; BASE I/O ADDRESS OF ICM PPI
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
+PKDPPIBASE	.SET	$60		; BASE I/O ADDRESS OF PKD PPI
+PKDOSC		.SET	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
+H8PENABLE	.SET	FALSE		; ENABLES HEATH H8 FRONT PANEL
+LCDENABLE	.SET	FALSE		; ENABLE LCD DISPLAY
+LCDBASE		.SET	$DA		; BASE I/O ADDRESS OF LCD CONTROLLER
+GM7303ENABLE	.SET	FALSE		; ENABLES THE GM7303 BOARD WITH 16X2 LCD
+;
+BOOTCON		.SET	0		; BOOT CONSOLE DEVICE
+SECCON		.SET	$FF		; SECONDARY CONSOLE DEVICE
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.SET	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
+ANSITRACE	.SET	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.SET	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.SET	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.SET	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYKBLOUT	.SET	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.SET	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTCMODE_[STD|MFPIC|K80W]
+DSRTCCHG	.SET	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+DS1501RTCENABLE	.SET	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
+DS1501RTC_BASE	.SET	$50		; DS1501RTC: I/O BASE ADDRESS
+;
+BQRTCENABLE	.SET	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.SET	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
+;
+SSERENABLE	.SET	FALSE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
+SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
+SSERSTATUS	.SET	$FF		; SSER: STATUS PORT
+SSERDATA	.SET	$FF		; SSER: DATA PORT
+SSERIRDY	.SET	%00000001	; SSER: INPUT READY BIT MASK
+SSERIINV	.SET	FALSE		; SSER: INPUT READY BIT INVERTED
+SSERORDY	.SET	%00000010	; SSER: OUTPUT READY BIT MASK
+SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
+;
+DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTCNT		.SET	1		; UART: NUMBER OF CHIPS TO DETECT (1-8)
+UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UART4UART	.SET	FALSE		; UART: SUPPORT 4UART ECB BOARD
+UART4UARTBASE	.SET	$C0		; UART: BASE IO ADDRESS OF 4UART ECB BOARD
+UART0BASE	.SET	$68		; UART 0: REGISTERS BASE ADR
+UART0CFG	.SET	DEFSERCFG	; UART 0: SERIAL LINE CONFIG
+UART1BASE	.SET	$FF		; UART 1: REGISTERS BASE ADR
+UART1CFG	.SET	SER_300_8N1	; UART 1: SERIAL LINE CONFIG
+UART2BASE	.SET	$FF		; UART 2: REGISTERS BASE ADR
+UART2CFG	.SET	DEFSERCFG	; UART 2: SERIAL LINE CONFIG
+UART3BASE	.SET	$FF		; UART 3: REGISTERS BASE ADR
+UART3CFG	.SET	DEFSERCFG	; UART 3: SERIAL LINE CONFIG
+UART4BASE	.SET	$FF		; UART 4: REGISTERS BASE ADR
+UART4CFG	.SET	DEFSERCFG	; UART 4: SERIAL LINE CONFIG
+UART5BASE	.SET	$FF		; UART 5: REGISTERS BASE ADR
+UART5CFG	.SET	DEFSERCFG	; UART 5: SERIAL LINE CONFIG
+UART6BASE	.SET	$FF		; UART 6: REGISTERS BASE ADR
+UART6CFG	.SET	DEFSERCFG	; UART 6: SERIAL LINE CONFIG
+UART7BASE	.SET	$FF		; UART 7: REGISTERS BASE ADR
+UART7CFG	.SET	DEFSERCFG	; UART 7: SERIAL LINE CONFIG
+;
+ASCIENABLE	.SET	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+;
+Z2UENABLE	.SET	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.SET	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+XIOCFG		.SET	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+GDCENABLE	.SET	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
+TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.SET	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MSX|MSXKBD|MSXMKY|MBC|COLECO|DUO|NABU]
+TMS80COLS	.SET	FALSE		; TMS: ENABLE 80 COLUMN SCREEN, REQUIRES V9958
+TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+SCONENABLE	.SET	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
+FVENABLE	.SET	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+;
+MDENABLE	.SET	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.SET	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.SET	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.SET	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.SET	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.SET	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.SET	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMAUTO		.SET	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
+;
+RFENABLE	.SET	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+;
+IDEENABLE	.SET	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.SET	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.SET	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.SET	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.SET	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.SET	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDPPIBASE	.SET	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
+SDTRACE		.SET	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.SET	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
+;
+CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
+;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
+;
+ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
+;
+HDSKENABLE	.SET	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.SET	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+;
+LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
+;
+PPAENABLE	.SET	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
+;
+IMMENABLE	.SET	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
+;
+SYQENABLE	.SET	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
+;
+PIO_4P		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO_ZP		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIO_SBC		.SET	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.SET	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.SET	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+;
+SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
+AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
+SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.SET	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+;
+YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
+VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_duo.asm b/Source/HBIOS/cfg_duo.asm
deleted file mode 100644
index 4843f81b..00000000
--- a/Source/HBIOS/cfg_duo.asm
+++ /dev/null
@@ -1,324 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR DUODYNE
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Duodyne", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_DUO		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	FALSE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_UNSUP	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$50		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$51		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$52		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$53		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$54		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$94		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$60		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	(7372800/8)	; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$56		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$42		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$42		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	TRUE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$88		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	TRUE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$88		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	7372800		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	TRUE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	TRUE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$60		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(7372800/4)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	0		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(7372800/4)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_MBC	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_DUO	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_DUO	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$88		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$14		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	TRUE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	1		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$4E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	TRUE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$FF		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	FALSE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-ESPCONENABLE	.EQU	TRUE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-HDSKTRACE	.EQU	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-;
-PIOENABLE	.EQU	TRUE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$68		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$6C		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	TRUE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_SPP	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$48		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$EC		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_SPP	; PPA: DRIVER MODE: PPAMODE_[NONE|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_SPP	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_SPP	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_DUO	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
-;
-AY38910ENABLE	.EQU	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_DUO	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	TRUE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	TRUE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$40		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_DUO	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_dyno.asm b/Source/HBIOS/cfg_dyno.asm
deleted file mode 100644
index dd3f3c05..00000000
--- a/Source/HBIOS/cfg_dyno.asm
+++ /dev/null
@@ -1,303 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR DYNO
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Dyno", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_DYNO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z180_BASE	.EQU	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$0C		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	TRUE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_DYNO	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$4C		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_NONE	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_epitx.asm b/Source/HBIOS/cfg_epitx.asm
deleted file mode 100644
index 4002c7d1..00000000
--- a/Source/HBIOS/cfg_epitx.asm
+++ /dev/null
@@ -1,335 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 2.X CONFIGURATION DEFAULTS FOR SC Z180 VARIANTS (SC126, SC130, ETC.)
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "MiniITX"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_EPITX	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z180_BASE	.EQU	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$0C		; RTC LATCH REGISTER ADR - TODO
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPENABLE	.EQU	FALSE		; ENABLES FRONT PANEL SWITCHES
-FPBASE		.EQU	$00		; FRONT PANEL I/O PORT BASE ADDRESS
-DIAGENABLE	.EQU	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
-DIAGPORT	.EQU	$00		; DIAGNOSTIC PORT ADDRESS
-DIAGDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON DIAGNOSTIC LEDS
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-; TODO - ADD PS/2 BITBANGER
-VDAEMU_SERKBD	.EQU	$00		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	2		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_EPFDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_EPITX	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|EPITX]
-SDPPIBASE	.EQU	$40		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
-SDTRACE		.EQU	2		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_heath.asm b/Source/HBIOS/cfg_heath.asm
deleted file mode 100644
index 41f6cb6a..00000000
--- a/Source/HBIOS/cfg_heath.asm
+++ /dev/null
@@ -1,328 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR RCBUS Z80
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_HEATH	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	7372800		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$C0		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	CPUOSC		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.EQU	$6E		; WATCHDOG REGISTER ADR
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_SC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_master.asm b/Source/HBIOS/cfg_master.asm
deleted file mode 100644
index e10cda1d..00000000
--- a/Source/HBIOS/cfg_master.asm
+++ /dev/null
@@ -1,395 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION MASTER
-;==================================================================================================
-;
-; THIS FILE IS *NOT* A REAL CONFIGURATION FILE.	 IT IS A MASTER TEMPLATE FILE
-; CONTAINING ALL POSSIBLE CONFIGURATION SETTINGS ACROSS ALL PLATFORMS.	IT IS
-; USED ONLY AS A REFERENCE TO HELP MANAGE THE FULL SET OF POSSIBLE SETTINGS AND
-; KEEP THINGS CONSISTENT.
-;
-#DEFINE PLATFORM_NAME "RomWBW", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_NONE		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
-MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	FALSE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-Z280_MEMLOWAIT	.EQU	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.EQU	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.EQU	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.EQU	0		; Z280: INT ACK WAIT STATUS (0-3)
-Z280_TIMER	.EQU	FALSE		; Z280: ENABLE INTERNAL Z280 SYSTEM PERIODIC TIMER
-;
-N8_PPI0		.EQU	$80		; N8: FIRST PARALLEL PORT REGISTERS BASE ADR
-N8_PPI1		.EQU	$84		; N8: SECOND PARALLEL PORT REGISTERS BASE ADR
-N8_RTC		.EQU	$88		; N8: RTC LATCH REGISTER ADR
-N8_ACR		.EQU	$94		; N8: AUXILLARY CONTROL REGISTER (ACR) ADR
-N8_RMAP		.EQU	$96		; N8: ROM PAGE REGISTER ADR
-N8_DEFACR	.EQU	$1B		; N8: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
-;
-RPH_PPI0	.EQU	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
-RPH_RTC		.EQU	$84		; RPH: RTC LATCH REGISTER ADR
-RPH_ACR		.EQU	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
-RPH_DEFACR	.EQU	$00		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
-;
-MK4_IDE		.EQU	$80		; MK4: IDE REGISTERS BASE ADR
-MK4_XAR		.EQU	$88		; MK4: EXTERNAL ADDRESS REGISTER (XAR) ADR
-MK4_SD		.EQU	$89		; MK4: SD CARD CONTROL REGISTER ADR
-MK4_RTC		.EQU	$8A		; MK4: RTC LATCH REGISTER ADR
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	614400		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.EQU	$6F		; WATCHDOG REGISTER ADR
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 8255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-Z2UOSC		.EQU	1843200		; Z2U: OSC FREQUENCY IN MHZ
-Z2UOSCEXT	.EQU	TRUE		; Z2U: USE EXTERNAL OSCILLATOR
-Z2U0BASE	.EQU	$10		; Z2U 0: BASE I/O ADDRESS
-Z2U0CFG		.EQU	DEFSERCFG	; Z2U 0: SERIAL LINE CONFIG
-Z2U0HFC		.EQU	FALSE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-GDCMODE		.EQU	GDCMODE_RPH	; GDC: GDC MODE: GDCMODE_[NONE|ECB|RPH]
-GDCMON		.EQU	GDCMON_EGA      ; GDC: GDC MONITOR SETUP: GDCMON_[NONE|CGA|EGA]
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_NONE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_NONE	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$14		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_NONE	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
-PPPSDENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
-PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPPCONENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-ESPCONENABLE	.EQU	TRUE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-HDSKTRACE	.EQU	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_NONE	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$E8		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$EC		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_SPP	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_SPP	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_SPP	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_NONE	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_mbc.asm b/Source/HBIOS/cfg_mbc.asm
deleted file mode 100644
index bc37a51f..00000000
--- a/Source/HBIOS/cfg_mbc.asm
+++ /dev/null
@@ -1,311 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR MBC
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Nhyodyne", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_MBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_HILO	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_LOW		; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_MBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
-MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	(4915200/8)	; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	TRUE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	TRUE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$B0		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_MBC	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_CGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MBC	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_MBC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$14		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-ESPCONENABLE	.EQU	TRUE		; ESP: ENABLE ESP32 CONSOLE IO DRIVER VIDEO/KBD SUPPORT
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-HDSKTRACE	.EQU	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-;
-PIOENABLE	.EQU	TRUE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_SPP	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$E8		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$EC		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_SPP	; PPA: DRIVER MODE: PPAMODE_[NONE|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_SPP	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_SPP	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_MBC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	TRUE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_MBC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_mk4.asm b/Source/HBIOS/cfg_mk4.asm
deleted file mode 100644
index 691440e6..00000000
--- a/Source/HBIOS/cfg_mk4.asm
+++ /dev/null
@@ -1,307 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION FOR MARK IV
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Mark IV", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_MK4		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-MK4_IDE		.EQU	$80		; MK4: IDE REGISTERS BASE ADR
-MK4_XAR		.EQU	$88		; MK4: EXTERNAL ADDRESS REGISTER (XAR) ADR
-MK4_SD		.EQU	$89		; MK4: SD CARD CONTROL REGISTER ADR
-MK4_RTC		.EQU	$8A		; MK4: RTC LATCH REGISTER ADR
-;
-RTCIO		.EQU	MK4_RTC		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	TRUE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	TRUE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$B0		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	TRUE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_MK4	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$80		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_DIDE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$20		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$28		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$28		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	FALSE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	FALSE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_DIDE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$30		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$38		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$38		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	FALSE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	FALSE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	2		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$14		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	TRUE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
-PPPSDENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
-PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPPCONENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_NONE	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$E8		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$EC		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_SCG	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_ECB	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_mon.asm b/Source/HBIOS/cfg_mon.asm
deleted file mode 100644
index 00f7b408..00000000
--- a/Source/HBIOS/cfg_mon.asm
+++ /dev/null
@@ -1,333 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR MONSPUTER Z80
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Monsputer", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_MON		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	4000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_MON		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-;
-RTCIO		.EQU	$C0		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	CPUOSC		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.EQU	$6E		; WATCHDOG REGISTER ADR
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_n8.asm b/Source/HBIOS/cfg_n8.asm
deleted file mode 100644
index d810827d..00000000
--- a/Source/HBIOS/cfg_n8.asm
+++ /dev/null
@@ -1,300 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION FOR N8
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RetroBrew N8", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_N8		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_N8		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-N8_PPI0		.EQU	$80		; N8: FIRST PARALLEL PORT REGISTERS BASE ADR
-N8_PPI1		.EQU	$84		; N8: SECOND PARALLEL PORT REGISTERS BASE ADR
-N8_RTC		.EQU	$88		; N8: RTC LATCH REGISTER ADR
-N8_ACR		.EQU	$94		; N8: AUXILLARY CONTROL REGISTER (ACR) ADR
-N8_RMAP		.EQU	$96		; N8: ROM PAGE REGISTER ADR
-N8_DEFACR	.EQU	$1B		; N8: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
-;
-RTCIO		.EQU	N8_RTC		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	N8_PPI0		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	N8_PPI0		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	TRUE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	TRUE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$B0		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_N8	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	N8_PPI0		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	N8_PPI0		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	N8_PPI0		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-FIFO_BASE	.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_nabu.asm b/Source/HBIOS/cfg_nabu.asm
deleted file mode 100644
index 372a26cd..00000000
--- a/Source/HBIOS/cfg_nabu.asm
+++ /dev/null
@@ -1,338 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR NABU Z80 W/ OPTION BOARD
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "NABU Personal Computer", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_NABU	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	3580000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$C0		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	CPUOSC		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.EQU	$6E		; WATCHDOG REGISTER ADR
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	FALSE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	TRUE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_NABU	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$00		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_NABU80	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	TRUE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_NABU	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_rcz180.asm b/Source/HBIOS/cfg_rcz180.asm
deleted file mode 100644
index d1f2da99..00000000
--- a/Source/HBIOS/cfg_rcz180.asm
+++ /dev/null
@@ -1,339 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR RCBUS Z180 CPU
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_RCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z180_BASE	.EQU	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$0C		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPENABLE	.EQU	FALSE		; ENABLES FRONT PANEL SWITCHES
-FPBASE		.EQU	$00		; FRONT PANEL I/O PORT BASE ADDRESS
-DIAGENABLE	.EQU	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
-DIAGPORT	.EQU	$00		; DIAGNOSTIC PORT ADDRESS
-DIAGDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON DIAGNOSTIC LEDS
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_rcz280.asm b/Source/HBIOS/cfg_rcz280.asm
deleted file mode 100644
index f97f7033..00000000
--- a/Source/HBIOS/cfg_rcz280.asm
+++ /dev/null
@@ -1,343 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR RCBUS Z280 CPU
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_RCZ280	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z280	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	24000000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z280_MEMLOWAIT	.EQU	0		; Z280: LOW 8MB MEMORY WAIT STATES (0-3)
-Z280_MEMHIWAIT	.EQU	0		; Z280: HIGH 8MB MEMORY WAIT STATES (0-3)
-Z280_IOWAIT	.EQU	1		; Z280: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z280_INTWAIT	.EQU	0		; Z280: INT ACK WAIT STATUS (0-3)
-Z280_TIMER	.EQU	TRUE		; Z280: ENABLE INTERNAL Z280 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$C0		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-Z2UOSC		.EQU	1843200		; Z2U: OSC FREQUENCY IN MHZ
-Z2UOSCEXT	.EQU	TRUE		; Z2U: USE EXTERNAL OSCILLATOR
-Z2U0BASE	.EQU	$10		; Z2U 0: BASE I/O ADDRESS
-Z2U0CFG		.EQU	DEFSERCFG	; Z2U 0: SERIAL LINE CONFIG
-Z2U0HFC		.EQU	FALSE		; Z2U 0: ENABLE HARDWARE FLOW CONTROL
-;
-ACIAENABLE	.EQU	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	7372800		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	7372800		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z280	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_rcz80.asm b/Source/HBIOS/cfg_rcz80.asm
deleted file mode 100644
index 7224ff1d..00000000
--- a/Source/HBIOS/cfg_rcz80.asm
+++ /dev/null
@@ -1,338 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR RCBUS Z80
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RCBus", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_RCZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	7372800		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$C0		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_TIM16	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	CPUOSC		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-SKZDIV		.EQU	DIV_1		; UART CLK (CLK2) DIVIDER FOR Z80-512K
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-WDOGIO		.EQU	$6E		; WATCHDOG REGISTER ADR
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	TRUE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-ACIADEBUG	.EQU	FALSE		; ACIA: ENABLE DEBUG OUTPUT
-ACIACNT		.EQU	1		; ACIA: NUMBER OF CHIPS TO DETECT (1-2)
-ACIA0BASE	.EQU	$80		; ACIA 0: REGISTERS BASE ADR
-ACIA0CLK	.EQU	CPUOSC		; ACIA 0: OSC FREQ IN HZ
-ACIA0DIV	.EQU	1		; ACIA 0: SERIAL CLOCK DIVIDER
-ACIA0CFG	.EQU	DEFSERCFG	; ACIA 0: SERIAL LINE CONFIG  (SEE STD.ASM)
-ACIA1BASE	.EQU	$40		; ACIA 1: REGISTERS BASE ADR
-ACIA1CLK	.EQU	CPUOSC		; ACIA 1: OSC FREQ IN HZ
-ACIA1DIV	.EQU	1		; ACIA 1: SERIAL CLOCK DIVIDER
-ACIA1CFG	.EQU	DEFSERCFG	; ACIA 1: SERIAL LINE CONFIG  (SEE STD.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	2		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$0C		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ80	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_RC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_rph.asm b/Source/HBIOS/cfg_rph.asm
deleted file mode 100644
index fbf1ebbf..00000000
--- a/Source/HBIOS/cfg_rph.asm
+++ /dev/null
@@ -1,289 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION FOR RHYOPHYRE
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Rhyophyre", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_RPH		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	TRUE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_RPH		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-;
-Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RPH_PPI0	.EQU	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
-RPH_RTC		.EQU	$84		; RPH: RTC LATCH REGISTER ADR
-RPH_ACR		.EQU	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
-RPH_DEFACR	.EQU	$20		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
-;
-RTCIO		.EQU	RPH_RTC		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	RPH_PPI0	; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	RPH_PPI0	; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	TRUE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-GDCMODE		.EQU	GDCMODE_RPH	; GDC: GDC MODE: GDCMODE_[NONE|ECB|RPH]
-GDCMON		.EQU	GDCMON_EGA      ; GDC: GDC MONITOR SETUP: GDCMON_[NONE|CGA|EGA]
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_N8	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	RPH_PPI0	; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	RPH_PPI0	; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	RPH_PPI0	; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-FIFO_BASE	.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_NONE	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_s100.asm b/Source/HBIOS/cfg_s100.asm
deleted file mode 100644
index 70800cf8..00000000
--- a/Source/HBIOS/cfg_s100.asm
+++ /dev/null
@@ -1,323 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR S100 Z180
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "S100", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_S100	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_57600_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z180_BASE	.EQU	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	1		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	2		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$0C		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	TRUE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_SC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$18		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_sbc.asm b/Source/HBIOS/cfg_sbc.asm
deleted file mode 100644
index 76cd046b..00000000
--- a/Source/HBIOS/cfg_sbc.asm
+++ /dev/null
@@ -1,289 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR SBC
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "RetroBrew SBC", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
-MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	614400		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	TRUE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	TRUE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	TRUE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$B0		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON		.EQU	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$14		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-HDSKTRACE	.EQU	1		; HDSK: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-UFBASE		.EQU	$0C		; UF: REGISTERS BASE ADR
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_SCG	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_ECB	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_scz180.asm b/Source/HBIOS/cfg_scz180.asm
deleted file mode 100644
index 52849489..00000000
--- a/Source/HBIOS/cfg_scz180.asm
+++ /dev/null
@@ -1,333 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR SC Z180 VARIANTS (SC126, SC130, ETC.)
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Small Computer", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_SCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-RAMBIAS		.EQU	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-Z180_BASE	.EQU	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
-Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
-Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
-Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
-Z180_TIMER	.EQU	TRUE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
-;
-RTCIO		.EQU	$0C		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$88		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	TRUE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED (SINGLE LED)
-LEDMODE		.EQU	LEDMODE_SC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$0E		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
-KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-DUARTCNT	.EQU	1		; DUART: NUMBER OF CHIPS TO DETECT (1-2)
-DUART0BASE	.EQU	$A0		; DUART 0: BASE ADDRESS OF CHIP
-DUART0ACFG	.EQU	DEFSERCFG	; DUART 0A: SERIAL LINE CONFIG
-DUART0BCFG	.EQU	DEFSERCFG	; DUART 0B: SERIAL LINE CONFIG
-DUART1BASE	.EQU	$40		; DUART 1: BASE ADDRESS OF CHIP
-DUART1ACFG	.EQU	DEFSERCFG	; DUART 1A: SERIAL LINE CONFIG
-DUART1BCFG	.EQU	DEFSERCFG	; DUART 1B: SERIAL LINE CONFIG
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG | SER_RTS	; UART: LINE CONFIG FOR UART PORTS
-UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	TRUE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-ASCIINTS	.EQU	TRUE		; ASCI: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
-ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
-ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
-ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	2		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_RC	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	7372800		; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	SER_115200_8N1	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	7372800		; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	SER_115200_8N1	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_RC	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	7372800		; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	SER_115200_8N1	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	7372800		; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	SER_115200_8N1	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
-IDE0MODE	.EQU	IDEMODE_RC	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE0BASE	.EQU	$10		; IDE 0: IO BASE ADDRESS
-IDE0DATLO	.EQU	$00		; IDE 0: DATA LO PORT FOR 16-BIT I/O
-IDE0DATHI	.EQU	$00		; IDE 0: DATA HI PORT FOR 16-BIT I/O
-IDE0A8BIT	.EQU	TRUE		; IDE 0A (MASTER): 8 BIT XFER
-IDE0B8BIT	.EQU	TRUE		; IDE 0B (MASTER): 8 BIT XFER
-IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
-IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
-IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
-IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
-IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
-IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
-IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
-IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
-IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
-IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
-IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$20		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
-PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
-PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
-PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
-PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	TRUE		; CH: ENABLE CH375/376 USB SUPPORT
-CHTRACE		.EQU	1		; CH: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHUSBTRACE	.EQU	1		; CHUSB: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHSDTRACE	.EQU	1		; CHSD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-CHCNT		.EQU	2		; CH: NUMBER OF BOARDS TO DETECT (1-2)
-CH0BASE		.EQU	$3E		; CH 0: BASE I/O ADDRESS
-CH0USBENABLE	.EQU	TRUE		; CH 0: ENABLE USB DISK
-CH0SDENABLE	.EQU	FALSE		; CH 0: ENABLE SD DISK
-CH1BASE		.EQU	$3C		; CH 1: BASE I/O ADDRESS
-CH1USBENABLE	.EQU	TRUE		; CH 1: ENABLE USB DISK
-CH1SDENABLE	.EQU	FALSE		; CH 1: ENABLE SD DISK
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-PRPSDENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
-PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PRPCONENABLE	.EQU	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
-PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.EQU	LPTMODE_MG014	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.EQU	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.EQU	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.EQU	$18		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.EQU	$00		; LPT 1: REGISTERS BASE ADR
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-PPACNT		.EQU	1		; PPA: NUMBER OF PPA DEVICES (1-2)
-PPATRACE	.EQU	1		; PPA: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPAMODE		.EQU	PPAMODE_MG014	; PPA: DRIVER MODE: PPAMODE_[NONE|SPP|MG014]
-PPA0BASE	.EQU	LPT0BASE	; PPA 0: BASE I/O ADDRESS OF PPI FOR PPA
-PPA1BASE	.EQU	LPT1BASE	; PPA 1: BASE I/O ADDRESS OF PPI FOR PPA
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-IMMCNT		.EQU	1		; IMM: NUMBER OF IMM DEVICES (1-2)
-IMMTRACE	.EQU	1		; IMM: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-IMMMODE		.EQU	IMMMODE_MG014	; IMM: DRIVER MODE: IMMMODE_[NONE|SPP|MG014]
-IMM0BASE	.EQU	LPT0BASE	; IMM 0: BASE I/O ADDRESS OF PPI FOR IMM
-IMM1BASE	.EQU	LPT1BASE	; IMM 1: BASE I/O ADDRESS OF PPI FOR IMM
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-SYQCNT		.EQU	1		; SYQ: NUMBER OF SYQ DEVICES (1-2)
-SYQTRACE	.EQU	1		; SYQ: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SYQMODE		.EQU	IMMMODE_MG014	; SYQ: DRIVER MODE: SYQMODE_[NONE|SPP|MG014]
-SYQ0BASE	.EQU	LPT0BASE	; SYQ 0: BASE I/O ADDRESS OF PPI FOR SYQ
-SYQ1BASE	.EQU	LPT1BASE	; SYQ 1: BASE I/O ADDRESS OF PPI FOR SYQ
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
-AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
-SN7CLK		.EQU	3579545		; SN: PSG CLOCK FREQ, ASSUME MSX STD
-SNMODE		.EQU	SNMODE_RC	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM]
-;
-AY38910ENABLE	.EQU	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
-AYMODE		.EQU	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
-;
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_una.asm b/Source/HBIOS/cfg_una.asm
deleted file mode 100644
index ca57b1f3..00000000
--- a/Source/HBIOS/cfg_una.asm
+++ /dev/null
@@ -1,42 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR UNA
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "UNA", " [", CONFIG, "]"
-;
-#INCLUDE "../UBIOS/ubios.inc"
-;
-;PLATFORM	.EQU	PLT_UNA		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_UNA	; HARDWARE BIOS: BIOS_[WBW|UNA]
-;
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	0		; NOT SUPPORTED ON UNA
-;
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY (DO NOT COMBINE WITH PPIDE)
diff --git a/Source/HBIOS/cfg_z80retro.asm b/Source/HBIOS/cfg_z80retro.asm
deleted file mode 100644
index e95c80ae..00000000
--- a/Source/HBIOS/cfg_z80retro.asm
+++ /dev/null
@@ -1,250 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR SIMPLE Z80 RETRO
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Z80Retro", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_Z80RETRO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	14745600	; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$60		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$61		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$62		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$63		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$64		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$40		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER (too fast for RomWBW right now)
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	0		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	1		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	7372800		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	$00		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-;
-DSRTCENABLE	.EQU	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
-SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
-SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
-SIO0MODE	.EQU	SIOMODE_Z80R	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$80		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	CPUOSC/2	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	CPUOSC/2	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1MODE	.EQU	SIOMODE_Z80R	; SIO 1: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO1BASE	.EQU	$84		; SIO 1: REGISTERS BASE ADR
-SIO1ACLK	.EQU	CPUOSC/2	; SIO 1A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1ACFG	.EQU	DEFSERCFG	; SIO 1A: SERIAL LINE CONFIG
-SIO1ACTCC	.EQU	-1		; SIO 1A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO1BCLK	.EQU	CPUOSC/2	; SIO 1B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
-SIO1BCFG	.EQU	DEFSERCFG	; SIO 1B: SERIAL LINE CONFIG
-SIO1BCTCC	.EQU	-1		; SIO 1B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_Z80R	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
-PPPSDENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
-PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPPCONENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN76489 SOUND DRIVER
-AY38910ENABLE	.EQU	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_zeta.asm b/Source/HBIOS/cfg_zeta.asm
deleted file mode 100644
index 0b3c409f..00000000
--- a/Source/HBIOS/cfg_zeta.asm
+++ /dev/null
@@ -1,221 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR ZETA V1
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Zeta", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_ZETA	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; BIOS_[WBW|UNA]: HARDWARE BIOS
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
-MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_ZETA	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
-PPPSDENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
-PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPPCONENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN76489 SOUND DRIVER
-AY38910ENABLE	.EQU	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_zeta2.asm b/Source/HBIOS/cfg_zeta2.asm
deleted file mode 100644
index 7e3c6f10..00000000
--- a/Source/HBIOS/cfg_zeta2.asm
+++ /dev/null
@@ -1,232 +0,0 @@
-;
-;==================================================================================================
-;   ROMWBW 3.X CONFIGURATION DEFAULTS FOR ZETA V2
-;==================================================================================================
-;
-; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
-; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
-; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
-; UNDER THIS DIRECTORY.
-;
-; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
-; FOR THE PLATFORM.
-;
-#DEFINE PLATFORM_NAME "Zeta 2", " [", CONFIG, "]"
-;
-#INCLUDE "hbios.inc"
-;
-PLATFORM	.EQU	PLT_ZETA2	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH|Z80RETRO|S100|DUO|HEATH|MON]
-CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
-BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
-BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
-HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
-USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
-TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
-;
-BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
-BOOT_DELAY	.EQU	0		; FIXED BOOT DELAY IN SECONDS PRIOR TO CONSOLE OUTPUT
-AUTOCON		.EQU	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
-;
-CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
-CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
-CPUOSC		.EQU	8000000		; CPU OSC FREQ IN MHZ
-INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
-DEFSERCFG	.EQU	SER_38400_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
-;
-RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
-ROMSIZE		.EQU	512		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
-APP_BNKS	.EQU	$FF		; BANKS TO RESERVE FOR APP USE ($FF FOR AUTO SIZING)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON]
-MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
-MPGSEL_3	.EQU	$7B		; Z2 MEM MGR BANK 3 PAGE SELECT REG (WRITE ONLY)
-MPGENA		.EQU	$7C		; Z2 MEM MGR PAGING ENABLE REGISTER (BIT 0, WRITE ONLY)
-;
-RTCIO		.EQU	$70		; RTC LATCH REGISTER ADR
-;
-KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
-KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
-;
-CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
-CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$20		; CTC BASE I/O ADDRESS
-CTCTIMER	.EQU	TRUE		; ENABLE CTC PERIODIC TIMER
-CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
-CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
-CTCPRECH	.EQU	0		; PRESCALE CHANNEL (0-3)
-CTCTIMCH	.EQU	1		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	921600		; CTC CLOCK FREQUENCY
-;
-PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
-PCFBASE		.EQU	$F0		; PCF8584 BASE I/O ADDRESS
-;
-EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
-;
-SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
-;
-WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
-;
-FPLED_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL LEDS
-FPLED_IO	.EQU	$00		; FP: PORT ADDRESS FOR FP LEDS
-FPLED_INV	.EQU	FALSE		; FP: LED BITS ARE INVERTED
-FPLED_DSKACT	.EQU	TRUE		; FP: ENABLES DISK I/O ACTIVITY ON FP LEDS
-FPSW_ENABLE	.EQU	FALSE		; FP: ENABLES FRONT PANEL SWITCHES
-FPSW_IO		.EQU	$00		; FP: PORT ADDRESS FOR FP SWITCHES
-FPSW_INV	.EQU	FALSE		; FP: SWITCH BITS ARE INVERTED
-;
-DIAGLVL		.EQU	DL_CRITICAL	; ERROR LEVEL REPORTING
-;
-LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
-LEDMODE		.EQU	LEDMODE_STD	; LEDMODE_[STD|SC|RTC|NABU]
-LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
-LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
-;
-DSKYENABLE	.EQU	FALSE		; ENABLES DSKY FUNCTIONALITY
-DSKYDSKACT	.EQU	TRUE		; ENABLES DISK ACTIVITY ON DSKY DISPLAY
-ICMENABLE	.EQU	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
-ICMPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF ICM PPI
-PKDENABLE	.EQU	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
-PKDPPIBASE	.EQU	$60		; BASE I/O ADDRESS OF PKD PPI
-PKDOSC		.EQU	3000000		; OSCILLATOR FREQ FOR PKD (IN HZ)
-H8PENABLE	.EQU	FALSE		; ENABLES HEATH H8 FRONT PANEL
-;
-BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
-SECCON		.EQU	$FF		; SECONDARY CONSOLE DEVICE
-CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
-VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
-VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
-ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
-;
-DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
-DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC|K80W]
-DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
-;
-DS1501RTCENABLE	.EQU	FALSE		; DS1501RTC: ENABLE DS-1501 CLOCK DRIVER (DS1501RTC.ASM)
-DS1501RTC_BASE	.EQU	$50		; DS1501RTC: I/O BASE ADDRESS
-;
-BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
-BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
-;
-INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
-;
-RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
-;
-HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
-SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
-;
-DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
-;
-DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
-;
-UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
-UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
-UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
-UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
-UARTSBC		.EQU	TRUE		; UART: AUTO-DETECT SBC/ZETA/DUO/NABU ONBOARD UART
-UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
-UARTAUX		.EQU	FALSE		; UART: AUTO-DETECT AUX UART
-UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
-UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
-UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
-UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
-;
-ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
-;
-Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
-;
-ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
-;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
-;
-XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
-;
-VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
-GDCENABLE	.EQU	FALSE		; GDC: ENABLE 7220 GDC VIDEO/KBD DRIVER (GDC.ASM)
-TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO|DUO|NABU40|NABU80]
-TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
-VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
-SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
-EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
-;
-MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
-MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
-MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
-MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-FDMODE		.EQU	FDMODE_ZETA2	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
-FDCNT		.EQU	1		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
-FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
-FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
-FD0TYPE		.EQU	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-FD1TYPE		.EQU	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
-;
-RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
-;
-IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
-;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
-PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
-PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
-;
-SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-SDMODE		.EQU	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|PIO|Z80R|USR]
-SDPPIBASE	.EQU	$60		; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
-SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
-SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
-SDMTSWAP	.EQU	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
-;
-CHENABLE	.EQU	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
-;
-PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
-;
-PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
-PPPBASE		.EQU	$60		; PPP: PPI REGISTERS BASE ADDRESS
-PPPSDENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
-PPPSDTRACE	.EQU	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPPCONENABLE	.EQU	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
-;
-ESPENABLE	.EQU	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
-;
-HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
-;
-PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
-;
-LPTENABLE	.EQU	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-;
-PPAENABLE	.EQU	FALSE		; PPA: ENABLE PPA DISK DRIVER (PPA.ASM)
-;
-IMMENABLE	.EQU	FALSE		; IMM: ENABLE IMM DISK DRIVER (IMM.ASM)
-;
-SYQENABLE	.EQU	FALSE		; SYQ: ENABLE IMM DISK DRIVER (SYQ.ASM)
-;
-PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
-PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
-PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
-PIOSBASE	.EQU	$60		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
-;
-UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
-;
-SN76489ENABLE	.EQU	FALSE		; SN76489 SOUND DRIVER
-AY38910ENABLE	.EQU	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
-DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_NONE	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
-;
-YM2612ENABLE	.EQU	FALSE		; YM2612: ENABLE YM2612 DRIVER (MUTE STUB)
-VGMBASE		.EQU	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/ch.asm b/Source/HBIOS/ch.asm
index 0bfb877d..b7f52caa 100644
--- a/Source/HBIOS/ch.asm
+++ b/Source/HBIOS/ch.asm
@@ -236,6 +236,7 @@ CH_INIT4:
 CH_CMD:
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
 	INC	C			; BUMP TO CMD PORT
+	EZ80_IO
 	OUT	(C),A			; SEND COMMAND
 	CALL	CH_NAP			; *DEBUG*
 	RET
@@ -245,6 +246,7 @@ CH_CMD:
 CH_STAT:
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
 	INC	C			; BUMP TO CMD PORT
+	EZ80_IO
 	IN	A,(C)			; READ STATUS
 	RET
 ;
@@ -252,6 +254,7 @@ CH_STAT:
 ;
 CH_RD:
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO
 	IN	A,(C)			; READ BYTE
 	RET
 ;
@@ -259,6 +262,7 @@ CH_RD:
 ;
 CH_WR:
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO
 	OUT	(C),A			; READ BYTE
 	RET
 ;
diff --git a/Source/HBIOS/chsd.asm b/Source/HBIOS/chsd.asm
index c4b38194..2b217b80 100644
--- a/Source/HBIOS/chsd.asm
+++ b/Source/HBIOS/chsd.asm
@@ -19,7 +19,7 @@
 ;
 #DEFINE	CHSD_IMGFILE "DISK.IMG"
 ;
-CHSD_FASTIO	.EQU	TRUE		; USE INIR/OTIR?
+CHSD_FASTIO	.EQU	FALSE		; USE INIR/OTIR?
 ;
 ; CHUSB DEVICE STATUS
 ;
@@ -196,6 +196,7 @@ CHSD_READ1:
 #IF (CHSD_FASTIO)
 	LD	B,A			; BYTE COUNT TO READ
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO ;!! NOT SUPPORT INIR YET
 	INIR				; DO IT FAST
 #ELSE
 	LD	B,A			; SAVE IT
@@ -263,6 +264,7 @@ CHSD_WRITE1:
 #IF (CHSD_FASTIO)
 	LD	B,A			; BYTE COUNT TO WRITE
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO ;!! NOT SUPPORT OTIR YET
 	OTIR				; DO IT FAST
 #ELSE
 	LD	B,A			; SAVE IT
diff --git a/Source/HBIOS/chusb.asm b/Source/HBIOS/chusb.asm
index 175a00b2..d77f3f64 100644
--- a/Source/HBIOS/chusb.asm
+++ b/Source/HBIOS/chusb.asm
@@ -196,6 +196,7 @@ CHUSB_READ1:
 	PUSH	BC			; SAVE LOOP CONTROL
 	LD	B,64			; READ 64 BYTES
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO
 	INIR				; DO IT FAST
 	POP	BC			; RESTORE LOOP CONTROL
 #ELSE
@@ -260,6 +261,7 @@ CHUSB_WRITE1:
 	PUSH	BC			; SAVE LOOP CONTROL
 	LD	B,64			; WRITE 64 BYTES
 	LD	C,(IY+CH_IOBASE)	; BASE PORT
+	EZ80_IO
 	OTIR				; DO IT FAST
 	POP	BC			; RESTORE LOOP CONTROL
 #ELSE
diff --git a/Source/HBIOS/dbgmon.asm b/Source/HBIOS/dbgmon.asm
index 2d0231d8..2a041e73 100644
--- a/Source/HBIOS/dbgmon.asm
+++ b/Source/HBIOS/dbgmon.asm
@@ -1290,8 +1290,8 @@ DSKY_ENTRY:
 ;_____________________________________________________________________________
 ;
 FRONTPANELLOOP:
-	LD	HL,CPUUP		; SET POINTER TO CPU UP MSG
-	CALL	DSKY_SHOW		; DISPLAY UNENCODED
+	LD	C,DSKY_MSG_MON_RDY
+	CALL	DSKY_MSG
 	CALL 	DSKY_HIGHLIGHTCMDKEYS
 	CALL 	DSKY_L1ON
 	CALL	KB_GET			; GET KEY FROM DSKY
@@ -1321,8 +1321,8 @@ FRONTPANELLOOP1:
 ;_____________________________________________________________________________
 ;
 DOBOOT:
-	LD	HL,MSGBOOT		; SET POINTER TO BOOT MESSAGE
-	CALL	DSKY_SHOW		; DISPLAY UNENCODED
+	LD	C,DSKY_MSG_MON_BOOT
+	CALL	DSKY_MSG
 	JP	BOOT			; DO BOOT
 ;
 ;__DOPORTREAD_________________________________________________________________
@@ -1343,7 +1343,7 @@ PORTREADLOOP:
 	INC	DE			; ADVANCE BUF PTR
 	INC	DE			; ... TO LAST TWO POSITIONS
 	CALL	PUTVALUE		; DISPLAY PORT VALUE
-	CALL	ENCDISPLAY		; DISPLAY BUFFER CONTENTS
+	CALL	DISPLAY			; DISPLAY BUFFER CONTENTS
 PORTREADGETKEY:
 	CALL	KB_GET			; GET KEY FROM KB
 	JR	PORTREADGETKEY		; NO VALID KEY, LOOP
@@ -1367,7 +1367,7 @@ PORTWRITELOOP:
 	OUT	(C),A			; OUTPUT VALUE TO PORT STORED IN "C"
 	LD	DE,DISPLAYBUF+6		; DISPLAY WRITTEN PORT VALUE
 	CALL	PUTVALUE		; ... WITHOUT DP'S
-	CALL	ENCDISPLAY		; DISPLAY BUFFER CONTENTS
+	CALL	DISPLAY			; DISPLAY BUFFER CONTENTS
 PORTWRITEGETKEY:
 	CALL	KB_GET			; GET KEY FROM KB
 	JR	PORTWRITEGETKEY		; NO VALID KEY, LOOP
@@ -1379,18 +1379,18 @@ PORTWRITEGETKEY:
 ;
 DOGO:
 	CALL 	DSKY_HIGHLIGHTNUMKEYS
-	CALL 	GETADDR			; GET ADDRESS INTO HL
-	PUSH	HL
-	CALL 	DSKY_HIGHLIGHTKEYSOFF
 	LD	HL,GOTO			; POINT TO "GO" MSG
 	CALL	INITBUF
+	CALL	GETVALW			; GET ADDRESS TO JUMP TO
+	PUSH	HL
+	CALL 	DSKY_HIGHLIGHTKEYSOFF
 	POP	HL
 	LD	DE,DISPLAYBUF+4
 	LD	A,H
 	CALL	PUTVALUE
 	LD	A,L
 	CALL	PUTVALUE
-	CALL	ENCDISPLAY		; DISPLAY
+	CALL	DISPLAY			; DISPLAY
 	JP	(HL)			; AND RUN
 ;
 ;__DOEXAMINE__________________________________________________________________
@@ -1416,7 +1416,7 @@ EXAMINELOOP:
 	INC	DE
 	LD	A,(HL)			; GET VALUE FROM ADDRESS IN HL
 	CALL	PUTVALUE
-	CALL	ENCDISPLAY		; DISPLAY BUFFER ON DISPLAYS
+	CALL	DISPLAY			; DISPLAY BUFFER ON DISPLAYS
 	CALL 	DSKY_HIGHLIGHTFWDKEYS
 EXAMINEGETKEY:
 	CALL	KB_GET			; GET KEY FROM KB
@@ -1451,7 +1451,7 @@ DEPOSITLOOP:
 	LD	(HL),A			;
 	LD	DE,DISPLAYBUF+6		; DISPLAY WRITTEN MEM VALUE
 	CALL	PUTVALUE		; ... WITHOUT DP'S
-	CALL	ENCDISPLAY		; DISPLAY BUFFER CONTENTS
+	CALL	DISPLAY			; DISPLAY BUFFER CONTENTS
 	CALL 	DSKY_HIGHLIGHTFWDKEYS
 DEPOSITGETKEY:
 	CALL	KB_GET			; GET KEY FROM KB
@@ -1488,7 +1488,7 @@ GETVALW:
 	LD	(DISPLAYBUF+6),A	;
 	LD	(DISPLAYBUF+7),A	;
 GETVALW1:
-	CALL	ENCDISPLAY		;
+	CALL	DISPLAY			;
 GETVALWLOOP:
 	CALL	KB_GET			;
 	CP	$10			;
@@ -1557,7 +1557,7 @@ GETVALUE:
 	LD	(DISPLAYBUF+6),A	;
 	LD	(DISPLAYBUF+7),A	;
 GETVALUE1:
-	CALL	ENCDISPLAY		;
+	CALL	DISPLAY			;
 GETVALUELOOP:
 	CALL	KB_GET			;
 	CP	$10			;
@@ -1644,52 +1644,22 @@ INITBUF:
 	LDIR
 	RET
 ;
-;__ENCDISPLAY_________________________________________________________________
+;__DISPLAY   _________________________________________________________________
 ;
-;  DISPLAY CONTENTS OF DISPLAYBUF ENCODED PER SEGDECODE TABLE
+;  DISPLAY CONTENTS OF DISPLAYBUF
 ;_____________________________________________________________________________
 ;
-ENCDISPLAY:
+DISPLAY:
+	PUSH	AF
+	PUSH	BC
+	PUSH	DE
 	PUSH	HL
 	LD	HL,DISPLAYBUF
-	JR	ENCBUF0
-;
-;__ENCBUF_____________________________________________________________________
-;
-;  DISPLAY CONTENTS OF BUFFER AT HL ENCODED PER SEGDECODE TABLE
-;_____________________________________________________________________________
-;
-ENCBUF:
-	PUSH	HL			; SAVE HL
-ENCBUF0:
-	PUSH	AF			; SAVE AF
-	PUSH	BC			; SAVE BC
-	PUSH	DE			; SAVE DE
-	LD	DE,DSKY_BUF		; DESTINATION FOR DECODED BYTES
-	LD	B,8			; NUMBER OF BYTES TO DECODE
-ENCBUF1:
-	LD	A,(HL)			; GET SOURCE BYTE
-	INC	HL			; BUMP TO NEXT BYTE FOR NEXT PASS
-	PUSH	AF			; SAVE IT
-	AND	$80			; ISOLATE HI BIT (DP)
-	LD	C,A			; SAVE IN C
-	POP	AF			; RECOVER ORIGINAL
-	AND	$7F			; REMOVE HI BIT (DP)
-	PUSH	HL			; SAVE POINTER
-	LD	HL,SEGDECODE		; POINT TO DECODE TABLE
-	CALL	ADDHLA			; OFFSET BY INCOMING VALUE
-	LD	A,(HL)			; GET DECODED VALUE
-	OR	C			; RECOMBINE WITH DP VALUE
-	LD	(DE),A			; SAVE IN DEST BUF
-	INC	DE			; INC DEST BUF PTR
-	POP	HL			; RESTORE POINTER
-	DJNZ	ENCBUF1			; LOOP THRU ALL BUF POSITIONS
-	LD	HL,DSKY_BUF		; POINT TO DECODED BUFFER
-	CALL	DSKY_SHOW		; DISPLAY IT
-	POP	DE			; RESTORE DE
-	POP	BC			; RESTORE BC
-	POP	AF			; RESTORE AF
-	POP	HL			; RESTORE HL
+	CALL	DSKY_SHOW
+	POP	HL
+	POP	DE
+	POP	BC
+	POP	AF
 	RET
 ;
 ;_____________________________________________________________________________
@@ -1751,38 +1721,21 @@ DSKY_HIGHLIGHT:
 	POP	HL
 	RET
 ;
+DSKY_MSG:
+	LD	B,BF_DSKYMESSAGE
+	RST	08
+	RET
+
 DSKY_HIGHLIGHTFWDKEYLEDS	.DB 	$00,$00,$00,$30,$00,$00,$00,$00
 DSKY_HIGHLIGHTCMDKEYLEDS	.DB 	$20,$00,$20,$3F,$00,$00,$00,$00
 DSKY_HIGHLIGHTNUMKEYLEDS	.DB 	$1F,$3F,$1F,$30,$00,$00,$00,$00
 DSKY_HIGHLIGHTKEYLEDSOFF	.DB 	$00,$00,$00,$00,$00,$00,$00,$00
 ;
-CPUUP	.DB 	$40,$39,$73,$3E,$00,$3E,$73,$40	; "-CPU UP-" (RAW SEG)
-MSGBOOT	.DB	$7F,$5C,$5C,$78,$82,$00,$00,$00 ; "Boot!   " (RAW SEG)
-ADDR	.DB	$17,$18,$19,$10,$00,$00,$00,$00	; "Adr 0000" (ENCODED)
-PORT	.DB	$13,$14,$15,$16,$10,$10,$00,$00	; "Port  00" (ENCODED)
-GOTO	.DB	$1A,$14,$10,$10,$00,$00,$00,$00	; "Go  0000" (ENCODED)
-;
-;_HEX_7_SEG_DECODE_TABLE______________________________________________________
-;
-; SET BIT 7 TO DISPLAY W/ DECIMAL POINT
-;_____________________________________________________________________________
-;
-SEGDECODE:
-;
-	; POS	$00  $01  $02  $03  $04  $05  $06  $07
-	; GLYPH '0'  '1'  '2'  '3'  '4'  '5'  '6'  '7'
-	.DB	$3F, $06, $5B, $4F, $66, $6D, $7D, $07
-;
-	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
-	; GLYPH	'8'  '9'  'A'  'B'  'C'  'D'  'E'  'F'
-	.DB	$7F, $67, $77, $7C, $39, $5E, $79, $71
-;
-	; POS	$10  $11  $12  $13  $14  $15  $16  $17  $18  $19  $1A
-	; GLYPH	' '  '-'  '.'  'P'  'o'  'r'  't'  'A'  'd'  'r'  'G'
-	.DB	$00, $40, $00, $73, $5C, $50, $78, $77, $5E, $50, $3D
+ADDR	.DB	$17,$18,$19,$10,$00,$00,$00,$00	; "Adr 0000" (ENCODED FOR SHOWSEG)
+PORT	.DB	$13,$14,$15,$16,$10,$10,$00,$00	; "Port  00" (ENCODED FOR SHOWSEG)
+GOTO	.DB	$1A,$14,$10,$10,$00,$00,$00,$00	; "Go  0000" (ENCODED FOR SHOWSEG)
 ;
 DISPLAYBUF:	.FILL	8,0
-DSKY_BUF	.FILL	8,0
 ;
 #ELSE
 ;
@@ -1795,7 +1748,6 @@ DSKY_ENTRY:
 ; UTILITY FUNCTIONS
 ;==================================================================================================
 ;
-;
 CHR_BEL		.EQU	07H
 CHR_CR		.EQU	0DH
 CHR_LF		.EQU	0AH
diff --git a/Source/HBIOS/ds5rtc.asm b/Source/HBIOS/ds5rtc.asm
new file mode 100644
index 00000000..1c67d55b
--- /dev/null
+++ b/Source/HBIOS/ds5rtc.asm
@@ -0,0 +1,566 @@
+;
+;==================================================================================================
+; MAXIM DS1305 RTC DRIVER
+;==================================================================================================
+;
+; THE DS1305 USES AN SPI INTERFACE.  THIS DRIVER CURRENTLY ASSUMES THE
+; FPGA-BASED SPI INTERFACE IMPLEMENTED IN THE S100 FPGA Z80.
+;
+; TRICKLE CHARGING IS NOT CURRENTLY IMPLEMENTED SINCE THE S100 FPGA Z80
+; DOES NOT SUPPORT THE USER OF A SUPER CAPACITOR.
+;
+;  REGISTER ADDRESSES (HEX / BCD):
+;
+;  +---+-----+---------------+-------------------+------------------+----------------+
+;  |ADR|  D7 | D6  | D5 | D4 | D3 | D2 | D1 | D0 | RANGE            | REGISTER       |
+;  +---+-----+---------------+-------------------+------------------+----------------+
+;  | 0 |  0  |     10-SECOND |          1-SECOND |            00-59 | SECONDS        |
+;  +---+-----+-----+---------+-------------------+------------------+----------------+
+;  | 1 |  0  |     10-MINUTE |          1-MINUTE |            00-59 | MINUTES        |
+;  +---+-----+-----+---------+-------------------+------------------+----------------+
+;  | 2 |  0  |  0  | 10-HOUR |            1-HOUR |            00-23 | HOURS          |
+;  +---+-----+-----+----+----+-------------------+------------------+----------------+
+;  | 3 |  0  |  0  |  0 |  0 |       DAY OF WEEK |            01-07 | DAY OF WEEK    |
+;  +---+-----+-----+----+----+----+--------------+------------------+----------------+
+;  | 4 |  0  |  0  | 10-DATE |            1-DATE |            01-31 | DATE           |
+;  +---+-----+-----+----+----+-------------------+------------------+----------------+
+;  | 5 |  0  |  0  |10-MONTH |           1-MONTH |            01-12 | MONTH          |
+;  +---+-----+-----+----+----+-------------------+------------------+----------------+
+;  | 6 |             10-YEAR |            1-YEAR |            00-99 | YEAR           |
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;                        --- ALARM 0 ---
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  | 7 |  M  |     10-SECOND |          1-SECOND |            00-59 | SECONDS ALARM  |
+;  +---+-----+---------------+-------------------+------------------+----------------+
+;  | 8 |  M  |     10-MINUTE |          1-MINUTE |            00-59 | MINUTES ALARM  |
+;  +---+-----+-----+---------+-------------------+------------------+----------------+
+;  | 9 |  M  |  0  | 10-HOUR |            1-HOUR |            00-23 | HOURS ALARM    |
+;  +---+-----+-----+----+----+-------------------+------------------+----------------+
+;  | A |  M  |  0  | 0  | 0  |               DAY |              1-7 | DAY ALARM      |
+;  +---+-----+-----+----+----+----+--------------+------------------+----------------+
+;                        --- ALARM 1 ---
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  | B |  M  |     10-SECOND |          1-SECOND |            00-59 | SECONDS ALARM  |
+;  +---+-----+---------------+-------------------+------------------+----------------+
+;  | C |  M  |     10-MINUTE |          1-MINUTE |            00-59 | MINUTES ALARM  |
+;  +---+-----+-----+---------+-------------------+------------------+----------------+
+;  | D |  M  |  0  | 10-HOUR |            1-HOUR |            00-23 | HOURS ALARM    |
+;  +---+-----+-----+----+----+-------------------+------------------+----------------+
+;  | E |  M  |  0  | 0  | 0  |               DAY |              1-7 | DAY ALARM      |
+;  +---+-----+-----+----+----+----+--------------+------------------+----------------+
+;
+;  +---+-----+-----+---------+-------------------+------------------+----------------+
+;  | F |/EOSC| WP  | 0  | 0  | 0  |INTC|AIE1|AIE0|                  | CONTROL REG    |
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  |10 |  0  |  0  | 0  | 0  | 0  | 0  |IRQ1|IRQ0|                  | STATUS REG     |
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  |11 | TRICKLE CHG ENABLE  |  DIODE  |RESISTOR |                  | TRICKLE CHG REG|
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  |12-1F |              RESERVED                |                  |                |
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;  |20-7F |              USER NVRAM              |            00-FF |                |
+;  +---+-----+-----+----+----+----+----+----+----+------------------+----------------+
+;
+;  0 = SHOULD BE SET TO 0 FOR VALID TIME/CALENDAR RANGE.
+;  CLOCK CALENDAR DATA IS BCD. AUTOMATIC LEAP YEAR ADJUSTMENT.
+;  DAY-OF-WEEK CODED AS SUNDAY = 1 THROUGH SATURDAY = 7.
+;
+; CONSTANTS
+;
+DS5RTC_BASE	.EQU	$68
+DS5RTC_DATA	.EQU	DS5RTC_BASE + 0
+DS5RTC_SELECT	.EQU	DS5RTC_BASE + 2	; WRITE
+DS5RTC_STATUS	.EQU	DS5RTC_BASE + 2	; READ
+DS5RTC_RUN	.EQU	DS5RTC_BASE + 3	; START READ/WRITE USING IN/OUT OPCODE
+;
+; IO PORTS
+;
+DS5NVM_BASE		.EQU	DS5RTC_BASE + $20
+
+DS5RTC_REG_SEC		.EQU	$00
+DS5RTC_REG_MIN		.EQU	$01
+DS5RTC_REG_HOUR		.EQU	$02
+DS5RTC_REG_WEEKDAY	.EQU	$03
+DS5RTC_REG_DATE		.EQU	$04
+DS5RTC_REG_MONTH	.EQU	$05
+DS5RTC_REG_YEAR		.EQU	$06
+DS5RTC_REG_ALM0_SEC	.EQU	$07
+DS5RTC_REG_ALM0_MIN	.EQU	$08
+DS5RTC_REG_ALM0_HOUR	.EQU	$09
+DS5RTC_REG_ALM0_DAY	.EQU	$0A
+DS5RTC_REG_ALM1_SEC	.EQU	$0B
+DS5RTC_REG_ALM1_MIN	.EQU	$0C
+DS5RTC_REG_ALM1_HOUR	.EQU	$0D
+DS5RTC_REG_ALM1_DAY	.EQU	$0E
+DS5RTC_REG_CONTROL	.EQU	$0F
+DS5RTC_REG_STATUS	.EQU	$10
+DS5RTC_REG_TCHG		.EQU	$11
+DS5RTC_REG_NVM_BASE	.EQU	$20
+;
+; VALUES FOR DIFFERENT BATTERY OR SUPERCAPACITOR CHARGE RATES
+;
+DS5RTC_TC1D2K	.EQU	%10100101	; 1 DIODE 2K RESISTOR (DEFAULT)
+DS5RTC_TC1D4K	.EQU	%10100110	; 1 DIODE 4K RESISTOR
+DS5RTC_TC1D8K	.EQU	%10100111	; 1 DOIDE 8K RESISTOR
+DS5RTC_TC2D2K	.EQU	%10101001	; 2 DIODES 2K RESISTOR
+DS5RTC_TC2D4K	.EQU	%10101010	; 2 DIODES 4K RESISTOR
+DS5RTC_TC2D8K	.EQU	%10101011	; 2 DIODES 8K RESISTOR
+;
+;
+;
+DS5RTC_BUFSIZE	.EQU	6		; 6 BYTE BUFFER (YYMMDDHHMMSS)
+;
+	DEVECHO	"DS5RTC: RTCIO="
+	DEVECHO	DS5RTC_BASE
+	DEVECHO	", IO="
+	DEVECHO	DS5RTC_BASE
+	DEVECHO	"\n"
+;
+; RTC DEVICE INITIALIZATION ENTRY
+;
+DS5RTC_INIT:
+	LD	A,(RTC_DISPACT)		; RTC DISPATCHER ALREADY SET?
+	OR	A			; SET FLAGS
+	RET	NZ			; IF ALREADY ACTIVE, ABORT
+;
+	CALL	NEWLINE			; FORMATTING
+	PRTS("DS5RTC: IO=0x$")
+	LD	A, DS5RTC_BASE
+	CALL	PRTHEXBYTE
+;
+	CALL	DS5RTC_DETECT		; HARDWARE DETECTION
+	JR	Z,DS5RTC_INIT1		; IF ZERO, ALL GOOD
+	PRTS(" NOT PRESENT$")		; NOT ZERO, H/W NOT PRESENT
+	OR	$FF			; SIGNAL FAILURE
+	RET				; BAIL OUT
+;
+DS5RTC_INIT1:
+	; DISPLAY CURRENT TIME
+	CALL	PC_SPACE		; FORMATTING
+	LD	HL,DS5RTC_BUF		; USE INTERNAL BUFFER
+	CALL	DS5RTC_RDCLK		; GET RAW RTC DATE/TIME
+	LD	HL,DS5RTC_TIMBUF	; POINT TO HBIOS TIME BUF
+	CALL	DS5RTC_CLK2TIM		; CONVERT TO HBIOS FMT
+	LD	HL,DS5RTC_TIMBUF	; POINT TO HBIOS TIME BUF
+	CALL	PRTDT			; PRINT FORMATTED DATE/TIME
+;
+	; ADD OURSELVES TO RTC DISPATCHER
+	LD	BC,DS5RTC_DISPATCH
+	CALL	RTC_SETDISP
+;
+	XOR	A
+	RET
+;
+; RTC DEVICE FUNCTION DISPATCH ENTRY
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   B: FUNCTION (IN)
+;
+DS5RTC_DISPATCH:
+	LD	A, B				; Get requested function
+	AND	$0F				; Isolate Sub-Function
+	JP	Z, DS5RTC_GETTIM		; Get Time
+	DEC	A
+	JP	Z, DS5RTC_SETTIM		; Set Time
+	DEC	A
+	JP	Z, DS5RTC_GETBYT		; Get NVRAM Byte Value
+	DEC	A
+	JP	Z, DS5RTC_SETBYT		; Set NVRAM Byte Value
+	DEC	A
+	JP	Z, DS5RTC_GETBLK		; Get NVRAM Data Block Value
+	DEC	A
+	JP	Z, DS5RTC_SETBLK		; Set NVRAM Data Block Value
+	DEC	A
+	JP	Z, DS5RTC_GETALM		; Get Alarm
+	DEC	A
+	JP	Z, DS5RTC_SETALM		; Set Alarm
+;
+; RTC GET TIME
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: DATE/TIME BUFFER (OUT)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSS
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+DS5RTC_GETTIM:
+	PUSH	HL			; SAVE ADR OF OUTPUT BUF
+;
+	; READ THE CLOCK
+	LD	HL,DS5RTC_BUF		; POINT TO CLOCK BUFFER
+	CALL	DS5RTC_RDCLK		; READ THE CLOCK
+	LD	HL,DS5RTC_TIMBUF	; POINT TO TIME BUFFER
+	CALL	DS5RTC_CLK2TIM		; CONVERT CLOCK TO TIME
+;
+	; NOW COPY TO REAL DESTINATION (INTERBANK SAFE)
+	LD	A,BID_BIOS		; COPY FROM BIOS BANK
+	LD	(HB_SRCBNK),A           ; SET IT
+	LD	A,(HB_INVBNK)		; COPY TO CURRENT USER BANK
+	LD	(HB_DSTBNK),A           ; SET IT
+	LD	HL,DS5RTC_TIMBUF	; SOURCE ADR
+	POP	DE			; DEST ADR
+	LD	BC,6			; LENGTH IS 6 BYTES
+#IF (INTMODE == 1)
+	DI
+#ENDIF
+	CALL	HB_BNKCPY		; COPY THE CLOCK DATA
+#IF (INTMODE == 1)
+	EI
+#ENDIF
+;
+	; CLEAN UP AND RETURN
+	XOR	A			; SIGNAL SUCCESS
+	RET				; AND RETURN
+;
+; RTC SET TIME
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: DATE/TIME BUFFER (IN)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSS
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+DS5RTC_SETTIM:
+	; COPY INCOMING TIME DATA TO OUR TIME BUFFER
+	LD	A,(HB_INVBNK)		; COPY FROM CURRENT USER BANK
+	LD	(HB_SRCBNK),A		; SET IT
+	LD	A,BID_BIOS		; COPY TO BIOS BANK
+	LD	(HB_DSTBNK),A		; SET IT
+	LD	DE,DS5RTC_TIMBUF	; DEST ADR
+	LD	BC,6			; LENGTH IS 6 BYTES
+#IF (INTMODE == 1)
+	DI
+#ENDIF
+	CALL	HB_BNKCPY		; COPY THE CLOCK DATA
+#IF (INTMODE == 1)
+	EI
+#ENDIF
+;
+	; WRITE TO CLOCK
+	LD	HL,DS5RTC_TIMBUF	; POINT TO TIME BUFFER
+	CALL	DS5RTC_TIM2CLK		; CONVERT TO CLOCK FORMAT
+	LD	HL,DS5RTC_BUF		; POINT TO CLOCK BUFFER
+	CALL	DS5RTC_WRCLK		; WRITE TO THE CLOCK
+;
+	; CLEAN UP AND RETURN
+	XOR	A			; SIGNAL SUCCESS
+	RET				; AND RETURN
+;
+; RTC GET NVRAM BYTE
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   C: INDEX (IN)
+;   E: VALUE (OUT)
+;
+DS5RTC_GETBYT:
+	LD	A,C			; INDEX TO A
+	ADD	A,$20			; NVRAM STARTS AT REG $20
+	LD	C,A			; BACK TO REG C
+	CALL	DS5RTC_GET		; DO IT
+	LD	E,A			; MOVE RESULT TO E
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+; RTC SET NVRAM BYTE
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   C: INDEX (IN)
+;   E: VALUE (IN)
+;
+DS5RTC_SETBYT:
+	LD	A,C			; INDEX TO A
+	ADD	A,$20			; NVRAM STARTS AT REG $20
+	LD	C,A			; BACK TO REG C
+	CALL	DS5RTC_WPOFF		; DISABLE WRITE PROTECT
+	CALL	DS5RTC_PUT		; DO IT
+	CALL	DS5RTC_WPOFF		; ENABLE WRITE PROTECT
+	LD	E,A			; MOVE RESULT TO E
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+; RTC GET BLOCK
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: BUFFER ADDRESS (IN)
+;
+DS5RTC_GETBLK:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+; RTC GET BLOCK
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: BUFFER ADDRESS (IN)
+;
+DS5RTC_SETBLK:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+; RTC GET ALARM
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERROR
+;   HL: DATE/TIME BUFFER ADDRESS (IN)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSS
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+DS5RTC_GETALM:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+; RTC SET ALARM
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERROR
+;   HL: DATE/TIME BUFFER ADDRESS (IN)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSS
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+DS5RTC_SETALM:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+;==================================================================================================
+; INTERNAL PROCEDURES
+;==================================================================================================
+;
+; TURN ON WRITE PROTECT
+;
+DS5RTC_WPON:
+	PUSH	AF
+	PUSH	BC
+	LD	A,%01000000		; CONTROL REGISTER W/P ON VALUE
+	LD	C,DS5RTC_REG_CONTROL	; CONTROL REGISTER ADR
+	CALL	DS5RTC_PUT		; SET CONTROL REGISTER
+	POP	BC
+	POP	AF
+	RET
+;
+; TURN OFF WRITE PROTECT
+;
+DS5RTC_WPOFF:
+	PUSH	AF
+	PUSH	BC
+	XOR	A			; CONTROL REGISTER W/P OFF VALUE
+	LD	C,DS5RTC_REG_CONTROL	; CONTROL REGISTER ADR
+	CALL	DS5RTC_PUT		; SET CONTROL REGISTER
+	POP	BC
+	POP	AF
+	RET
+;
+; DETECT RTC HARDWARE PRESENCE
+;
+DS5RTC_DETECT:
+	CALL	DS5RTC_WPOFF		; DISABLE WRITE PROTECT
+;
+	; TEST AN NVRAM BYTE (NON-DESTRUCTIVE)
+	LD	C,$7F			; LAST NVRAM BYTE
+	CALL	DS5RTC_GET		; GET CURRENT VALUE
+	LD	B,A			; SAVE IN B
+	XOR	$FF			; FLIP ALL BITS
+	CALL	DS5RTC_PUT		; SAVE TO RTC NVRAM
+	CALL	DS5RTC_GET		; GET UPDATED VALUE
+	XOR	$FF			; FLIP ALL BITS
+	CP	B			; COMPARE W/ ORIGINAL READ
+	PUSH	AF			; SAVE FLAGS
+	CALL	DS5RTC_PUT		; RESAVE ORIGINAL VALUE
+;
+	CALL	DS5RTC_WPON		; RESTORE WRITE PROTECT
+	POP	AF			; RESTORE FLAGS
+	RET				; ZF INDICATES PRESENCE
+;
+; READ RTC DATE/TIME INTO INTERNAL BUFFER
+;
+DS5RTC_RDCLK:
+	LD	B,7			; 7 BYTE DATE/TIME BUFFER
+	LD	C,DS5RTC_REG_SEC	; START W/ SECONDS REGISTER
+	LD	HL,DS5RTC_BUF		; USE INTERNAL BUFFER
+	CALL	DS5RTC_GETBUF		; FILL THE BUFFER
+	XOR	A			; SIGNAL SUCCESS
+	RET				; RETURN
+;
+; WRITE RTC DATE/TIME FROM INTERNAL BUFFER
+;
+DS5RTC_WRCLK:
+	CALL	DS5RTC_WPOFF		; DISABLE WRITE PROTECT
+	LD	B,7			; 7 BYTE DATE/TIME BUFFER
+	LD	C,DS5RTC_REG_SEC	; START W/ SECONDS REGISTER
+	LD	HL,DS5RTC_BUF		; USE INTERNAL BUFFER
+	CALL	DS5RTC_PUTBUF		; FILL THE BUFFER
+	CALL	DS5RTC_WPON		; RESTORE WRITE PROTECT
+	XOR	A			; SIGNAL SUCCESS
+	RET				; RETURN
+;
+; CONVERT DATA IN CLOCK BUFFER TO TIME BUFFER AT HL
+;
+DS5RTC_CLK2TIM:
+	LD	A,(DS5RTC_YR)
+	LD	(HL),A
+	INC	HL
+	LD	A,(DS5RTC_MON)
+	LD	(HL),A
+	INC	HL
+	LD	A,(DS5RTC_DT)
+	LD	(HL),A
+	INC	HL
+	LD	A,(DS5RTC_HR)
+	LD	(HL),A
+	INC	HL
+	LD	A,(DS5RTC_MIN)
+	LD	(HL),A
+	INC	HL
+	LD	A,(DS5RTC_SEC)
+	LD	(HL),A
+	RET
+;
+; CONVERT DATA IN TIME BUFFER AT HL TO CLOCK BUFFER
+;
+DS5RTC_TIM2CLK:
+	PUSH	HL
+	LD	A,(HL)
+	LD	(DS5RTC_YR),A
+	INC	HL
+	LD	A,(HL)
+	LD	(DS5RTC_MON),A
+	INC	HL
+	LD	A,(HL)
+	LD	(DS5RTC_DT),A
+	INC	HL
+	LD	A,(HL)
+	LD	(DS5RTC_HR),A
+	INC	HL
+	LD	A,(HL)
+	LD	(DS5RTC_MIN),A
+	INC	HL
+	LD	A,(HL)
+	LD	(DS5RTC_SEC),A
+	POP	HL
+	CALL	TIMDOW
+	INC	A			; CONVERT FROM 0-6 TO 1-7
+	LD	(DS5RTC_DAY),A
+	RET
+;
+; READ A BUFFER OF BYTES FROM THE RTC
+; START RTC ADR IN C, COUNT IN B, BUF PTR IN HL
+;
+DS5RTC_GETBUF:
+	LD	A,1
+	OUT	(DS5RTC_SELECT),A	; SELECT RTC
+	LD	A,C			; ADDRESS TO A
+	OUT	(DS5RTC_DATA),A		; SEND TO INTERFACE
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO WRITE ADR
+	CALL	DS5RTC_WAITBSY		; WAIT FOR COMPLETION
+DS5RTC_GETBUF1:
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO READ DATA
+	CALL	DS5RTC_WAITBSY		; WAIT FOR DATA
+	IN	A,(DS5RTC_DATA)		; GET VALUE
+	LD	(HL),A			; SAVE BYTE IN BUFFER
+	INC	HL			; BUMP BUF PTR
+	DJNZ	DS5RTC_GETBUF1		; LOOP FOR REQUESTED BYTES
+	LD	A,0
+	OUT	(DS5RTC_SELECT),A	; DESELECT DEVICE
+	RET
+;
+; WRITE A BUFFER OF BYTES TO THE RTC
+; START RTC ADR IN C, COUNT IN B, BUF PTR IN HL
+;
+DS5RTC_PUTBUF:
+	LD	A,1
+	OUT	(DS5RTC_SELECT),A	; SELECT RTC
+	LD	A,C			; ADDRESS TO A
+	SET	7,A			; SET WRITE BIT
+	OUT	(DS5RTC_DATA),A		; SEND TO INTERFACE
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO WRITE ADR
+	CALL	DS5RTC_WAITBSY		; WAIT FOR COMPLETION
+DS5RTC_PUTBUF1:
+	LD	A,(HL)			; NEXT BYTE TO WRITE
+	INC	HL			; BUMP BUF PTR
+	OUT	(DS5RTC_DATA),A		; SEND TO INTERFACE
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO WRITE BYTE
+	CALL	DS5RTC_WAITBSY		; WAIT FOR COMPLETION
+	DJNZ	DS5RTC_PUTBUF1		; LOOP FOR REQUESTED BYTES
+	LD	A,0
+	OUT	(DS5RTC_SELECT),A	; DESELECT DEVICE
+	RET
+;
+; GET A BYTE FROM THE RTC
+; ADDRESS IN C, RETURN VALLUE IN A
+;
+DS5RTC_GET:
+	LD	A,1
+	OUT	(DS5RTC_SELECT),A	; SELECT RTC
+	LD	A,C			; ADDRESS TO A
+	OUT	(DS5RTC_DATA),A		; SEND TO INTERFACE
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO WRITE ADR
+	CALL	DS5RTC_WAITBSY		; WAIT FOR COMPLETION
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO READ DATA
+	CALL	DS5RTC_WAITBSY		; WAIT FOR DATA
+	IN	A,(DS5RTC_DATA)		; GET VALUE
+	PUSH	AF			; SAVE VALUE
+	LD	A,0
+	OUT	(DS5RTC_SELECT),A	; DESELECT DEVICE
+	POP	AF			; RESTORE VALUE
+	RET
+;
+; PUT A BYTE TO THE RTC
+; ADDRESS IN C, VALUE IN A
+;
+DS5RTC_PUT:
+	PUSH	AF			; SAVE VALUE TO PUT
+	LD	A,1
+	OUT	(DS5RTC_SELECT),A	; SELECT RTC
+	LD	A,C			; ADDRESS TO A
+	SET	7,A			; SET WRITE BIT
+	OUT	(DS5RTC_DATA),A		; SEND TO INTERFACE
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTION TO WRITE ADR
+	CALL	DS5RTC_WAITBSY		; WAIT FOR COMPLETION
+	POP	AF			; RECOVER VALUE TO PUT
+	OUT	(DS5RTC_DATA),A		; VALUE TO OUTPUT
+	OUT	(DS5RTC_RUN),A		; SPI TRANSACTOIN TO WRITE VALUE
+	CALL	DS5RTC_WAITBSY		; WAIT FOR WRITE TO COMPLETE
+	LD	A,0
+	OUT	(DS5RTC_SELECT),A	; DESELECT DEVICE
+	RET
+;
+; WAIT UNTIL SPI INTERFACE IS NO LONGER BUSY
+;
+DS5RTC_WAITBSY:
+	PUSH	AF			; PRESERVE AF
+	PUSH	BC			; PRESERVE BC
+;
+	; AFTER INITIATING A SPI TRANSACTION, IT MAY TAKE A WHILE
+	; FOR THE BUSY STATUS TO BE REFLECTED.  THE DELAYS BELOW
+	; ENSURE ENOUGH TIME HAS ELAPSED.
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+;
+	; SINCE THIS ROUTINE MAY BE USED TO DETECT AN RTC THAT DOES
+	; NOT EXIST, WE PROTECT THE WAIT WITH A TIMEOUT LOOP TO
+	; PREVENT A SYSTEM STALL.
+	LD	B,0
+DS5RTC_WAITBSY1:
+	IN	A,(DS5RTC_STATUS)	; GET STATUS BYTE
+	OR	A			; SET FLAGS
+	JR	Z,DS5RTC_WAITBSY2	; IF ZERO, WE ARE DONE
+	DJNZ	DS5RTC_WAITBSY1		; TRY TILL COUNTER EXHAUSTED
+DS5RTC_WAITBSY2:
+	POP	BC			; RECOVER BC
+	POP	AF			; RECOVER AF
+	RET
+;
+; DS5RTC_BUF IS USED FOR BURST READ/WRITE OF CLOCK DATA TO DS1305
+; FIELDS BELOW MATCH ORDER OF DS1305 FIELDS (BCD)
+;
+DS5RTC_BUF:
+DS5RTC_SEC	.DB	0		; SECOND
+DS5RTC_MIN	.DB	0		; MINUTE
+DS5RTC_HR	.DB	0		; HOUR
+DS5RTC_DAY	.DB	0		; DAY OF WEEK
+DS5RTC_DT	.DB	0		; DATE
+DS5RTC_MON	.DB	0		; MONTH
+DS5RTC_YR	.DB	0		; YEAR
+;
+; DS5RTC_TIMBUF IS TEMP BUF USED TO STORE TIME TEMPORARILY TO DISPLAY
+; IT.
+;
+DS5RTC_TIMBUF	.FILL	6,0		; 6 BYTES FOR GETTIM
+;
+; DS5RTC_TIMDEF IS DEFAULT TIME VALUE TO INITIALIZE CLOCK IF IT IS
+; NOT RUNNING.
+;
+DS5RTC_TIMDEF:	; DEFAULT TIME VALUE TO INIT CLOCK
+		.DB	$00,$01,$01	; 2000-01-01
+		.DB	$00,$00,$00	; 00:00:00
diff --git a/Source/HBIOS/dsrtc.asm b/Source/HBIOS/dsrtc.asm
index f7e89631..ecce36ee 100644
--- a/Source/HBIOS/dsrtc.asm
+++ b/Source/HBIOS/dsrtc.asm
@@ -165,14 +165,6 @@ DSRTC_BUFSIZ	.EQU	7		; 7 BYTE BUFFER (YYMMDDHHMMSSWW)
 ; RTC DEVICE PRE-INITIALIZATION ENTRY
 ;
 DSRTC_PREINIT:
-;
-	;; SET RELEVANT BITS IN RTC LATCH SHADOW REGISTER
-	;; TO THEIR QUIESENT STATE
-	;LD	A,(DSRTC_OPRVAL)	; GET CURRENT SHADOW REG VAL
-	;AND	~DSRTC_MASK		; CLEAR OUR BITS
-	;OR	DSRTC_IDLE		; SET OUR IDLE BITS
-	;LD	(DSRTC_OPRVAL),A	; SAVE IT
-;
 	XOR	A			; ZERO
 	LD	(DSRTC_STAT),A		; CLEAR STATUS
 	CALL	DSRTC_DETECT		; HARDWARE DETECTION
diff --git a/Source/HBIOS/esp.asm b/Source/HBIOS/esp.asm
index 5a76ffb7..e8820e1d 100644
--- a/Source/HBIOS/esp.asm
+++ b/Source/HBIOS/esp.asm
@@ -364,7 +364,8 @@ ESPCON_INIT:
 	PUSH	IY			; COPY CONFIG ENTRY PTR
 	POP	DE			; ... TO DE
 	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
-	LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	;;;LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	CALL	CIO_SETCRT		; SET OURSELVES AS THE CRT DEVICE
 ;
 ; ANNOUNCE OURSLEVES
 ;
diff --git a/Source/HBIOS/ez80cpudrv.asm b/Source/HBIOS/ez80cpudrv.asm
new file mode 100644
index 00000000..494f717b
--- /dev/null
+++ b/Source/HBIOS/ez80cpudrv.asm
@@ -0,0 +1,333 @@
+;
+;==================================================================================================
+; RCBUS EZ80 CPU DRIVER
+;==================================================================================================
+;
+; Driver code designed for the RCBus eZ80 CPU Module.  
+; The driver expects the eZ80 firmware to manage the initial booting of the system.
+; Details for the platform and the software for the on-chip firmware can be found at:
+; https://github.com/dinoboards/ez80-for-rc
+;
+; Although the eZ80 firmware is booted before HBIOS, the eZ80 CPU driver is still required
+; to communicate with the firmware to perform a number of initialisation tasks.
+; See also the associated ez80 platform drivers (ez80rtc, ez80systmr, ez80uart).
+;
+; The driver 'exports' the following:
+; 1. EZ80_PREINIT - This function is called by the HBIOS boot code to initialise the eZ80 firmware.
+; 2. EZ80_RPT_TIMINGS - This function is called by the HBIOS boot code to report the platform timings.
+; 3. DELAY - pause for approx 17us
+; 4. VDELAY - pause for approx 17us * DE
+;
+; EZ80_PREINIT performs the following:
+; 1. Exchange platform version numbers
+; 2. Retrieve CPU Frequency
+; 3. Set Memory and I/O Bus Timings
+; 4. Set Timer Tick Frequency
+;
+
+EZ80_PREINIT:
+	EZ80_TMR_INT_DISABLE()
+
+	; PROVIDE THE EZ80 FIRMWARE WITH PLATFORM CONFIGUATIONS
+	LD	C, 1			; RomWBW'S ASSIGNED CODE
+	LD	D, RMJ
+	LD	E, RMN
+	LD	H, RUP
+	LD	L, RTP
+
+	EZ80_UTIL_VER_EXCH()
+	; TODO: MAP THE FIRMWARE CPU TO HBIOS (eZ80 ONLY HAS ONE CPU TYPE AS OF NOW)
+	LD	A, 5
+	LD	(HB_CPUTYPE),A
+
+	; DETECT IF USING ALT-FIRMWARE
+	LD	A, C
+	AND	$80
+	LD	(EZ80_ALT_FIRM), A
+	LD	(EZ80_PLT_VERSION), HL
+	LD	(EZ80_PLT_VERSION+2), DE
+
+	EXX
+	LD	A, C
+	LD	(EZ80_BUILD_DATE), A		; DAY
+	LD	A, D
+	LD	(EZ80_BUILD_DATE+1), A		; MONTH
+	LD	A, E
+	LD	(EZ80_BUILD_DATE+2), A		; YEAR
+
+	EZ80_UTIL_GET_CPU_FQ()
+	LD	A, E
+	LD	(CB_CPUMHZ), A
+	LD	(CB_CPUKHZ), HL
+	LD	(HB_CPUOSC), HL
+
+#IF (EZ80_FWSMD_TYP == EZ80WSMD_WAIT)
+	LD	L, EZ80_FLSH_WS
+	EZ80_UTIL_FLSHWS_SET()
+	LD	A, L
+	LD	(EZ80_PLT_FLSHWS), A
+#ENDIF
+
+#IF (EZ80_FWSMD_TYP == EZ80WSMD_CALC)
+	LD	HL, EZ80_FLSH_MIN_NS
+	LD	E, 0
+	EZ80_CPY_EHL_TO_UHL
+	EZ80_UTIL_FLSHFQ_SET()
+	LD	A, L
+	LD	(EZ80_PLT_FLSHWS), A
+#ENDIF
+
+
+#IF (EZ80_WSMD_TYP == EZ80WSMD_CYCLES)
+	LD	L, EZ80_MEM_CYCLES | $80
+	EZ80_UTIL_MEMTM_SET()
+	LD	A, L
+	LD	(EZ80_PLT_MEMWS), A
+
+	LD	L, EZ80_IO_CYCLES | $80
+	EZ80_UTIL_IOTM_SET()
+	LD	A, L
+	LD	(EZ80_PLT_IOWS), A
+
+	RET
+#ENDIF
+
+#IF (EZ80_WSMD_TYP == EZ80WSMD_CALC)
+	LD	HL, EZ80_MEM_MIN_NS
+	LD	E, 0
+	EZ80_CPY_EHL_TO_UHL
+	LD	E, EZ80_MEM_MIN_WS
+	EZ80_UTIL_MEMTMFQ_SET
+	LD	A, L
+	LD	(EZ80_PLT_MEMWS), A
+
+	LD	HL, EZ80_IO_MIN_NS
+	LD	E, 0
+	EZ80_CPY_EHL_TO_UHL
+	LD	E, EZ80_IO_MIN_WS
+	EZ80_UTIL_IOTMFQ_SET
+
+	LD	A, L
+	LD	(EZ80_PLT_IOWS), A
+#ENDIF
+#IF (EZ80_WSMD_TYP == EZ80WSMD_WAIT)
+	LD	L, EZ80_MEM_WS
+	EZ80_UTIL_MEMTM_SET()
+	LD	A, L
+	LD	(EZ80_PLT_MEMWS), A
+
+	LD	L, EZ80_IO_WS
+	EZ80_UTIL_IOTM_SET()
+	LD	A, L
+	LD	(EZ80_PLT_IOWS), A
+#ENDIF
+
+	LD	C, TICKFREQ
+	EZ80_TMR_SET_FREQTICK
+
+	RET
+;
+; --------------------------------
+; eZ80 CPU DRIVER REPORT TIMINGS
+; --------------------------------
+EZ80_RPT_TIMINGS:
+	LD	A, (EZ80_PLT_MEMWS)
+	BIT	7, A
+	JR	NZ, EZ80_RPT_MCYC
+
+	CALL	PRTDECB
+	CALL	PRTSTRD
+	.TEXT	" MEM W/S, $"
+	JR	EZ80_RPT_IOTIMING
+
+EZ80_RPT_MCYC:
+	AND	$7F
+	CALL	PRTDECB
+	CALL	PRTSTRD
+	.TEXT	" MEM B/C, $"
+
+EZ80_RPT_IOTIMING:
+	LD	A, (EZ80_PLT_IOWS)
+	BIT	7, A
+	JR	NZ, EZ80_RPT_ICYC
+
+	CALL	PRTDECB
+	CALL	PRTSTRD
+	.TEXT	" I/O W/S, $"
+	JR	EZ80_RPT_FSH_TIMINGS
+
+EZ80_RPT_ICYC:
+	AND	$7F
+	CALL	PRTDECB
+	CALL	PRTSTRD
+	.TEXT	" I/O B/C, $"
+
+EZ80_RPT_FSH_TIMINGS:
+	LD	A, (EZ80_PLT_FLSHWS)
+	CALL	PRTDECB
+	CALL	PRTSTRD
+	.TEXT	" FSH W/S$";
+
+;--------------------------------------------------------------------------------------------------
+; DELAY LOOP TEST CALIBRATION
+;--------------------------------------------------------------------------------------------------
+;
+; IF ENABLED, THE GPIO PCBx PINS OF THE EZ80 WILL BE TOGGLED AT 'DELAY' RATE * 16 
+; CAN BE USED TO VERIFY DELAY WORKS SUFFICIENT FOR DIFFERENT EZ80 CLOCK SPEEDS
+; AND BUS CYCLES
+;
+#IF FALSE
+
+;   7.3728 MHZ -- 1 MEM W/S, 6 I/O W/S, 0 FSH W/S - 428 - 26.7us
+;  18.4320 MHZ -- 2 MEM W/S, 6 I/O W/S, 1 FSH W/S - 284 - 17.8us
+;  20.0000 MHZ -- 2 MEM W/S, 6 I/O W/S, 1 FSH W/S - 281 - 17.6us
+;  25.0000 MHZ -- 2 MEM W/S, 3 I/O B/C, 1 FSH W/S - 271 - 16.9us
+;  32.0000 MHZ -- 3 MEM W/S, 4 I/O B/C, 2 FSH W/S - 289 - 18.0us
+
+
+PC_DR:		.equ	$009E
+PC_DDR:		.equ	$009F
+	DI
+
+	; ENABLE PC5 GPIO AS OUTPUT
+	LD	BC, PC_DDR
+	XOR	A
+	OUT	(C), A
+	PUSH	AF
+
+	LD	BC, PC_DR
+LOOP:
+
+	POP	AF
+	OUT	(C), A
+	CPL
+	PUSH	AF
+
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+	CALL	DELAY
+
+	JR	LOOP
+#ENDIF
+	RET
+
+DELAY:
+	EZ80_DELAY
+	EZ80_DELAY
+	EZ80_DELAY
+	RET
+
+VDELAY:
+	EZ80_DELAY
+	EZ80_DELAY
+	EZ80_DELAY
+	DEC	DE
+	LD	A,D
+	OR	E
+	JR	NZ, VDELAY
+	RET
+
+EZ80_RPT_FIRMWARE:
+	CALL	PRTSTRD
+	.TEXT	"\r\neZ80 Firmware: $"
+
+	LD	A, (EZ80_PLT_VERSION+3) 	; MAJOR VERSION NUMBER
+	CALL	PRTDECB
+	CALL	PC_PERIOD
+	LD	A, (EZ80_PLT_VERSION+2) 	; MINOR VERSION NUMBER
+	CALL	PRTDECB
+	CALL	PC_PERIOD
+	LD	A, (EZ80_PLT_VERSION+1) 	; REVISION NUMBER
+	CALL	PRTDECB
+	CALL	PC_PERIOD
+	LD	A, (EZ80_PLT_VERSION) 		; PATCH NUMBER
+	CALL	PRTDECB
+
+	CALL	PRTSTRD
+	.TEXT	" 20$"
+	LD	A, (EZ80_BUILD_DATE+2)		; YEAR
+	CALL	PRTDECB
+	CALL	PC_DASH
+	LD	A, (EZ80_BUILD_DATE+1)		; MONTH
+	CALL	PC_LEADING_ZERO
+	CALL	PRTDECB
+	CALL	PC_DASH
+	LD	A, (EZ80_BUILD_DATE)		; DAY
+	CALL	PC_LEADING_ZERO
+	CALL	PRTDECB
+
+	LD	A, (EZ80_ALT_FIRM)
+	OR	A
+	RET	Z
+	CALL	PRTSTRD
+	.TEXT	" (ALT)$"
+	RET
+
+PC_LEADING_ZERO:
+	CP	10
+	RET	NC
+
+	PUSH	AF
+	LD 	A, '0'
+	JP	PC_PRTCHR
+
+PC_DASH:
+	PUSH	AF
+	LD	A, '-'
+	JP	PC_PRTCHR
+
+EZ80_PLT_MEMWS:
+	.DB	EZ80_MEM_WS
+EZ80_PLT_IOWS:
+	.DB	EZ80_IO_WS
+EZ80_PLT_FLSHWS:
+	.DB	EZ80_FLSH_WS
+
+EZ80_PLT_VERSION:
+	.DB	0, 0, 0, 0
+
+EZ80_ALT_FIRM:
+	.DB	0
+
+EZ80_BUILD_DATE:
+	.DB	0, 0, 0					; DAY, MONTH, YEAR
+
+; ez80 helper functions/instructions
+
+_EZ80_CPY_EHL_TO_UHL:
+	PUSH	IX
+	PUSH	AF
+	.DB 	$5B, $DD, $21, $00, $00, $00		; LD.LIL	IX, 0
+	.DB 	$49, $DD, $39				; ADD.L		IX, SP
+	.DB 	$49, $E5				; PUSH.L	HL
+	.DB 	$5B, $DD, $73, $FF			; LD.LIL	(IX-1), E
+	.DB 	$49, $E1				; POP.L		HL
+	POP	AF
+	POP	IX
+	RET
+
+_EZ80_CPY_UHL_TO_EHL:
+	PUSH	IX
+	.DB	$5B, $DD, $21, $00, $00, $00		; LD.LIL	IX, 0
+	.DB	$49, $DD, $39				; ADD.L		IX, SP
+	.DB	$49, $E5				; PUSH.L	HL
+	.DB	$5B, $DD, $5E, $FF			; LD.LIL	E, (IX-1)
+	.DB	$49, $E1				; POP.L		HL
+	POP	IX
+	RET
diff --git a/Source/HBIOS/ez80instr.inc b/Source/HBIOS/ez80instr.inc
new file mode 100644
index 00000000..5da3db4d
--- /dev/null
+++ b/Source/HBIOS/ez80instr.inc
@@ -0,0 +1,141 @@
+;
+;==================================================================================================
+;   HELPER MACROS FOR TARGETING EZ80 CPU INSTRUCTIONS
+;==================================================================================================
+
+;
+; EMIT PREFIX REQUIRED BY EZ80 TO ENSURE CORRECT 16 BIT IO OPERATION
+;
+#IF (CPUFAM == CPU_EZ80)
+  ; RST.L $08
+  #DEFINE EZ80_IO	.DB 	$49, $CF
+  ; RST.L $10
+  #DEFINE EZ80_FN 	.DB	$49, $D7
+  ; RST.L $18
+  #DEFINE EZ80_DELAY	.DB	$49, $DF
+
+  #DEFINE EZ80_UTIL_VER_EXCH		XOR A \ LD B, 0 \ EZ80_FN
+  #DEFINE EZ80_UTIL_DELAY 		XOR A \ LD B, 1 \ EZ80_FN
+  #DEFINE EZ80_UTIL_SET_BUSTM 		XOR A \ LD B, 3 \ EZ80_FN
+  #DEFINE EZ80_UTIL_SET_BUSFQ 		XOR A \ LD B, 4 \ EZ80_FN
+  #DEFINE EZ80_UTIL_GET_CPU_FQ 		XOR A \ LD B, 5 \ EZ80_FN
+  #DEFINE EZ80_UTIL_DEBUG 		XOR A \ LD B, 7 \ EZ80_FN
+  #DEFINE EZ80_UTIL_MEMTM_SET 		XOR A \ LD B, 8 \ EZ80_FN
+  #DEFINE EZ80_UTIL_IOTM_SET 		XOR A \ LD B, 9 \ EZ80_FN
+  #DEFINE EZ80_UTIL_MEMTM_GET 		XOR A \ LD B, 10 \ EZ80_FN
+  #DEFINE EZ80_UTIL_IOTM_GET 		XOR A \ LD B, 11 \ EZ80_FN
+  #DEFINE EZ80_UTIL_MEMTMFQ_SET		XOR A \ LD B, 12 \ EZ80_FN
+  #DEFINE EZ80_UTIL_IOTMFQ_SET		XOR A \ LD B, 13 \ EZ80_FN
+  #DEFINE EZ80_UTIL_FLSHWS_SET		XOR A \ LD B, 14 \ EZ80_FN
+  #DEFINE EZ80_UTIL_FLSHWS_GET		XOR A \ LD B, 15 \ EZ80_FN
+  #DEFINE EZ80_UTIL_FLSHFQ_SET		XOR A \ LD B, 16 \ EZ80_FN
+
+  #DEFINE EZ80_RTC_INIT 		LD A, 1 \ LD B, 0 \ EZ80_FN
+  #DEFINE EZ80_RTC_GET_TIME 		LD A, 1	\ LD B, 1 \ EZ80_FN
+  #DEFINE EZ80_RTC_SET_TIME 		LD A, 1	\ LD B, 2 \ EZ80_FN
+
+  #DEFINE EZ80_TMR_GET_TICKS		LD A, 2 \ LD B,  0 \ EZ80_FN
+  #DEFINE EZ80_TMR_GET_SECONDS		LD A, 2 \ LD B,  1 \ EZ80_FN
+  #DEFINE EZ80_TMR_SET_TICKS		LD A, 2 \ LD B,  2 \ EZ80_FN
+  #DEFINE EZ80_TMR_SET_SECONDS		LD A, 2 \ LD B,  3 \ EZ80_FN
+  #DEFINE EZ80_TMR_GET_FREQTICK		LD A, 2 \ LD B,  4 \ EZ80_FN
+  #DEFINE EZ80_TMR_SET_FREQTICK		LD A, 2 \ LD B,  5 \ EZ80_FN
+  #DEFINE EZ80_TMR_THROTTLE_START	LD A, 2 \ LD B,  6 \ EZ80_FN
+  #DEFINE EZ80_TMR_THROTTLE_WAIT	LD A, 2 \ LD B,  7 \ EZ80_FN
+  #DEFINE EZ80_TMR_INT_DISABLE		LD A, 2 \ LD B,  8 \ EZ80_FN
+  #DEFINE EZ80_TMR_INT_ENABLE		LD A, 2 \ LD B,  9 \ EZ80_FN
+  #DEFINE EZ80_TMR_IS_TICK_ISR		LD A, 2 \ LD B, 10 \ EZ80_FN
+  #DEFINE EZ80_TMR_DELAY		LD A, 2 \ LD B, 11 \ EZ80_FN
+
+  #DEFINE EZ80_THROTTLE_START(p,store) \
+  #DEFCONT \ PUSH AF
+  #DEFCONT \ PUSH BC
+  #DEFCONT \ PUSH HL
+  #DEFCONT \ LD A, 2
+  #DEFCONT \ LD BC, (6 * 256) + p
+  #DEFCONT \ EZ80_FN
+  #DEFCONT \ LD (store), HL
+  #DEFCONT \ POP HL
+  #DEFCONT \ POP BC
+  #DEFCONT \ POP AF
+
+  #DEFINE EZ80_THROTTLE_WAIT(p,store) \
+  #DEFCONT \ PUSH AF
+  #DEFCONT \ PUSH BC
+  #DEFCONT \ PUSH HL
+  #DEFCONT \ LD A, 2
+  #DEFCONT \ LD BC, (7 * 256) + p
+  #DEFCONT \ LD HL, (store)
+  #DEFCONT \ EZ80_FN
+  #DEFCONT \ LD (store), HL
+  #DEFCONT \ POP HL
+  #DEFCONT \ POP BC
+  #DEFCONT \ POP AF
+
+  #DEFINE EZ80_UART_IN		LD A, 3 \ LD B, 0 \ EZ80_FN
+  #DEFINE EZ80_UART_OUT		LD A, 3 \ LD B, 1 \ EZ80_FN
+  #DEFINE EZ80_UART_IN_STAT	LD A, 3 \ LD B, 2 \ EZ80_FN
+  #DEFINE EZ80_UART_OUT_STAT	LD A, 3 \ LD B, 3 \ EZ80_FN
+  #DEFINE EZ80_UART_CONFIG	LD A, 3 \ LD B, 4 \ EZ80_FN
+  #DEFINE EZ80_UART_QUERY	LD A, 3 \ LD B, 5 \ EZ80_FN
+  #DEFINE EZ80_UART_RESET	LD A, 3 \ LD B, 6 \ EZ80_FN
+
+  #DEFINE RET.L		.DB	$49 \ RET
+
+  #DEFINE IN0_A(p)	.DB	$ED,$38,p
+  #DEFINE IN0_B(p)	.DB	$ED,$00,p
+  #DEFINE IN0_C(p)	.DB	$ED,$08,p
+  #DEFINE IN0_D(p)	.DB	$ED,$10,p
+  #DEFINE IN0_E(p)	.DB	$ED,$18,p
+  #DEFINE IN0_H(p)	.DB	$ED,$20,p
+  #DEFINE IN0_L(p)	.DB	$ED,$28,p
+
+  #DEFINE OUT0_A(p)	.DB	$ED,$39,p
+  #DEFINE OUT0_B(p)	.DB	$ED,$01,p
+  #DEFINE OUT0_C(p)	.DB	$ED,$09,p
+  #DEFINE OUT0_D(p)	.DB	$ED,$11,p
+  #DEFINE OUT0_E(p)	.DB	$ED,$19,p
+  #DEFINE OUT0_H(p)	.DB	$ED,$21,p
+  #DEFINE OUT0_L(p)	.DB	$ED,$29,p
+
+  #DEFINE LDHLMM.LIL(Mmn)	\
+  #defcont \	.DB	$5B
+  #defcont \	LD	HL, Mmn
+  #defcont \	.DB	(Mmn >> 16) & $FF
+
+  #DEFINE LDBCMM.LIL(Mmn)	\
+  #defcont \	.DB	$5B
+  #defcont \	LD	BC, Mmn & $FFFF
+  #defcont \	.DB	(Mmn >> 16) & $FF
+
+  #DEFINE SBCHLBC.LIL \
+  #defcont \	.DB	$49
+  #defcont \	SBC	HL, BC
+
+IO_SEGMENT	.EQU		$FF		; THE UPPER 8-BIT ADDRESS FOR I/O
+
+  #DEFINE OUT_NN_A(addr) \
+  #DEFCONT \ PUSH	BC
+  #DEFCONT \ LD	BC, IO_SEGMENT << 8 | addr
+  #DEFCONT \ OUT	(C), A
+  #DEFCONT \ POP	BC
+
+  #DEFINE IN_A_NN(addr) \
+  #DEFCONT \ LD A, IO_SEGMENT
+  #DEFCONT \ IN A, (addr)
+
+#define EZ80_CPY_EHL_TO_UHL 	CALL _EZ80_CPY_EHL_TO_UHL
+#define EZ80_CPY_UHL_TO_EHL	CALL _EZ80_CPY_UHL_TO_EHL
+
+#ELSE
+  #DEFINE EZ80_IO
+
+  #DEFINE EZ80_THROTTLE_START(p,store)
+  #DEFINE EZ80_THROTTLE_WAIT(p,store)
+
+IO_SEGMENT	.EQU		$FF		; THE UPPER 8-BIT ADDRESS FOR I/O
+
+  #DEFINE OUT_NN_A(addr) OUT (addr), A
+  #DEFINE IN_A_NN(addr)  IN A, (addr)
+
+#ENDIF
diff --git a/Source/HBIOS/ez80rtc.asm b/Source/HBIOS/ez80rtc.asm
new file mode 100644
index 00000000..483739e1
--- /dev/null
+++ b/Source/HBIOS/ez80rtc.asm
@@ -0,0 +1,173 @@
+;
+;==================================================================================================
+; EZ80 ON-CHIP RTC DRIVER
+;==================================================================================================
+;
+EZ80RTC_BUFSIZ	.EQU	6	; SIX BYTE BUFFER (YYMMDDHHMMSS)
+;
+; RTC DEVICE INITIALIZATION ENTRY
+
+EZ80RTC_INIT:
+	; display driver install message
+	; delegate init function to firmware
+	; install dispatcher
+	; dispatch local routine that delgates to firmware routines
+
+	LD	A, (RTC_DISPACT)	; RTC DISPATCHER ALREADY SET?
+	OR	A			; SET FLAGS
+	RET	NZ			; IF ALREADY ACTIVE, ABORT
+
+	CALL	NEWLINE			; FORMATTING
+	CALL	PRTSTRD
+	.TEXT	"EZ80 RTC: $"
+
+	EZ80_RTC_INIT()
+	JR	Z, RTC_POWERED
+
+	PUSH	AF
+	CALL	PRTSTRD
+	.TEXT	"NOT POWERED$"
+	POP	AF
+	RET
+
+RTC_POWERED:
+	CALL	PRTSTRD
+	.TEXT	"POWERED $"
+
+	; DISPLAY CURRENT TIME
+	LD	HL, EZ80RTC_BCDBUF_EXT	; POINT TO BCD BUF EXTENDED
+	EZ80_RTC_GET_TIME()
+
+	LD	HL, EZ80RTC_BCDBUF	; POINT TO BCD BUF
+	CALL	PRTDT			; DISPLAY THIS TIME
+;
+	LD	BC, EZ80RTC_DISPATCH
+	CALL	RTC_SETDISP
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET
+
+;
+; RTC DEVICE FUNCTION DISPATCH ENTRY
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   B: FUNCTION (IN)
+;
+EZ80RTC_DISPATCH:
+	LD	A,B			; GET REQUESTED FUNCTION
+	AND	$0F			; ISOLATE SUB-FUNCTION
+	JP	Z,EZ80RTC_GETTIM		; GET TIME
+	DEC	A
+	JP	Z,EZ80RTC_SETTIM		; SET TIME
+	DEC	A
+	JP	Z,EZ80RTC_GETBYT		; GET NVRAM BYTE VALUE
+	DEC	A
+	JP	Z,EZ80RTC_SETBYT		; SET NVRAM BYTE VALUE
+	DEC	A
+	JP	Z,EZ80RTC_GETBLK		; GET NVRAM DATA BLOCK VALUES
+	DEC	A
+	JP	Z,EZ80RTC_SETBLK		; SET NVRAM DATA BLOCK VALUES
+	DEC	A
+	JP	Z,EZ80RTC_GETALM		; GET ALARM
+	DEC	A
+	JP	Z,EZ80RTC_SETALM		; SET ALARM
+	DEC	A
+	JP	Z,EZ80RTC_DEVICE		; REPORT RTC DEVICE INFO
+	SYSCHKERR(ERR_NOFUNC)
+	RET
+;
+; RTC GET TIME
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: DATE/TIME BUFFER (OUT)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSS
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+EZ80RTC_GETTIM:
+	PUSH	HL
+	LD	HL, EZ80RTC_BCDBUF_EXT	; POINT TO BCD BUF EXTENDED
+	EZ80_RTC_GET_TIME()		; (HL) <- TIME
+
+	LD	A, BID_BIOS		; COPY FROM BIOS BANK
+	LD	(HB_SRCBNK), A		; SET IT
+	LD	A, (HB_INVBNK)		; COPY TO CURRENT USER BANK
+	LD	(HB_DSTBNK), A		; SET IT
+	LD	HL, EZ80RTC_BCDBUF	; SOURCE ADR
+	POP	DE			; DEST ADR
+	LD	BC, EZ80RTC_BUFSIZ	; LENGTH
+	CALL	HB_BNKCPY		; COPY THE CLOCK DATA
+
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+;
+; RTC SET TIME
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   HL: DATE/TIME BUFFER (IN)
+; BUFFER FORMAT IS BCD: YYMMDDHHMMSSWW
+; 24 HOUR TIME FORMAT IS ASSUMED
+;
+EZ80RTC_SETTIM:
+	; COPY TO BCD BUF
+	LD	A,(HB_INVBNK)		; COPY FROM CURRENT USER BANK
+	LD	(HB_SRCBNK),A		; SET IT
+	LD	A,BID_BIOS		; COPY TO BIOS BANK
+	LD	(HB_DSTBNK),A		; SET IT
+	LD	DE,EZ80RTC_BCDBUF	; DEST ADR
+	LD	BC,EZ80RTC_BUFSIZ	; LENGTH
+	CALL	HB_BNKCPY		; COPY THE RPC DATA
+
+	LD	HL, EZ80RTC_BCDBUF_EXT	; POINT TO BCD BUF EXTENDED
+	LD	(HL), $20		; CENTURY NOT SUPPORT BY HBIOS
+	EZ80_RTC_SET_TIME()		; (HL) -> SYSTEM TIME
+
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; RTC GET NVRAM BYTE
+;   C: INDEX
+;   E: VALUE (OUTPUT)
+;   A:0 IF OK, ERR_RANGE IF OUT OF RANGE
+;
+EZ80RTC_GETBYT:
+	SYSCHKERR(ERR_NOTIMPL)
+	; XOR	A			; SIGNAL SUCCESS
+	RET				; AND RETURN
+
+
+; RTC SET NVRAM BYTE
+;   C: INDEX
+;   E: VALUE
+;   A:0 IF OK, ERR_RANGE IF OUT OF RANGE
+;
+EZ80RTC_SETBYT:
+	SYSCHKERR(ERR_NOTIMPL)
+	; XOR	A			; SIGNAL SUCCESS
+	RET
+
+EZ80RTC_GETBLK:
+EZ80RTC_SETBLK:
+EZ80RTC_GETALM:
+EZ80RTC_SETALM:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+; REPORT RTC DEVICE INFO
+;
+EZ80RTC_DEVICE:
+	LD	D, RTCDEV_EZ80		; D := DEVICE TYPE
+	LD	E, 0			; E := PHYSICAL DEVICE NUMBER
+	LD	HL, 00			; H := 0, DRIVER HAS NO MODES,  L := 0, NO I/O ADDRESS
+	XOR	A			; SIGNAL SUCCESS
+	RET
+
+
+; REGISTER EXTRACTED VALUES
+;
+EZ80RTC_BCDBUF_EXT:
+EZ80RTC_CN	.DB	20	; CENTURY
+EZ80RTC_BCDBUF:
+EZ80RTC_YR	.DB	24
+EZ80RTC_MO	.DB	01
+EZ80RTC_DT	.DB	01
+EZ80RTC_HH	.DB	00
+EZ80RTC_MM	.DB	00
+EZ80RTC_SS	.DB	00
diff --git a/Source/HBIOS/ez80systmr.asm b/Source/HBIOS/ez80systmr.asm
new file mode 100644
index 00000000..7663a13d
--- /dev/null
+++ b/Source/HBIOS/ez80systmr.asm
@@ -0,0 +1,88 @@
+;
+;==================================================================================================
+; EZ80 50/60HZ TIMER TICK DRIVER
+;==================================================================================================
+;
+; Configuration options:
+; EZ80TIMER:
+;   0 -> No timer tick interrupts MARSHALLED to HBIOS.
+;	 HBIOS System calls SYS_GETTIMER, SYS_GETSECS, SYS_SETTIMER, SYS_SETSECS are implemented here and DELEGATED to eZ80 firmware functions
+;   1 -> Timer tick interrupts MARSHALLED to HBIOS.
+;	 HBIOS System calls SYS_GETTIMER, SYS_GETSECS, SYS_SETTIMER, SYS_SETSECS are implemented within HBIOS
+;
+
+#IF (EZ80TIMER == EZ80TMR_INT)
+EZ80_TMR_INIT:
+	CALL	NEWLINE			; FORMATTING
+	CALL	PRTSTRD
+	.TEXT	"EZ80 TIMER: INTERRUPTS ENABLED$"
+
+	LD	HL,EZ80_TMR_INT		; GET INT VECTOR
+	CALL	HB_ADDIM1		; ADD TO IM1 CALL LIST
+
+	EZ80_TMR_INT_ENABLE()		; INSTALL TIMER HOOK
+	RET
+
+EZ80_TMR_INT:
+	EZ80_TMR_IS_TICK_ISR()
+	RET	Z			; NOT A EZ80 TIMER TICK
+
+	CALL	HB_TIMINT		; RETURN NZ - HANDLED
+	OR	$FF
+	RET
+#ENDIF
+#IF (EZ80TIMER == EZ80TMR_FIRM)
+
+EZ80_TMR_INIT:
+	CALL	NEWLINE			; FORMATTING
+	CALL	PRTSTRD
+	.TEXT	"EZ80 TIMER: FIRMWARE$"
+	RET
+; -----------------------------------------------
+; Implementation of HBIOS SYS TIMER functions to
+; delegate to eZ80 firmware functions
+
+; GET TIMER
+;   RETURNS:
+;     DE:HL: TIMER VALUE (32 BIT)
+;
+SYS_GETTIMER:
+	EZ80_TMR_GET_TICKS()
+	RET
+;
+; GET SECONDS
+;   RETURNS:
+;     DE:HL: SECONDS VALUE (32 BIT)
+;     C: NUM TICKS WITHIN CURRENT SECOND
+;
+SYS_GETSECS:
+	EZ80_TMR_GET_SECONDS()
+
+	EZ80_CPY_UHL_TO_EHL		; E:HL{15:0} <- HL{23:0}
+	LD	D, 0
+	RET
+;
+; SET TIMER
+;   ON ENTRY:
+;     DE:HL: TIMER VALUE (32 BIT)
+;
+SYS_SETTIMER:
+	EZ80_CPY_EHL_TO_UHL		; HL{23:0} <- E:HL{15:0}
+	EZ80_TMR_SET_TICKS()
+	RET
+;
+; SET SECS
+;   ON ENTRY:
+;     DE:HL: SECONDS VALUE (32 BIT)
+;
+SYS_SETSECS:
+	EZ80_CPY_EHL_TO_UHL		; HL{23:0} <- E:HL{15:0}
+
+	EZ80_TMR_SET_SECONDS()
+	RET
+
+#ENDIF
+#IF (EZ80TIMER == EZ80TMR_NONE)
+EZ80_TMR_INIT:
+	RET
+#ENDIF
diff --git a/Source/HBIOS/ez80uart.asm b/Source/HBIOS/ez80uart.asm
new file mode 100644
index 00000000..2bc68322
--- /dev/null
+++ b/Source/HBIOS/ez80uart.asm
@@ -0,0 +1,324 @@
+;
+;==================================================================================================
+; eZ80 UART DRIVER (SERIAL PORT)
+;==================================================================================================
+;
+;
+; Supported Line Characteristics are encoded as follows in the DE register pair:
+;
+; | **Bits** | **Characteristic**                     |
+; |---------:|----------------------------------------|
+; | 15-14    | Reserved (set to 0)                    |
+; | 13       | RTS (Not implemented)                  |
+; | 12-8     | Baud Rate* (see below)                 |
+; | 7        | DTR (Not implemented)                  |
+; | 6        | XON/XOFF Flow Control (not implemented)|
+; | 5        | Stick Parity (not implemented)         |
+; | 4        | Even Parity (set for true)             |
+; | 3        | Parity Enable (set for true)           |
+; | 2        | Stop Bits (0-> 1 BIT, 1-> 2 BITS)      |
+; | 1-0      | Data Bits (5-8 encoded as 0-3)         |
+;
+; * The 5-bit Baud Rate value (V) is encoded as V = 75 * 2^X * 3^Y. The
+; bits are defined as YXXXX.
+;
+; STICK & EVEN & PARITY -> MARK PARITY -> NOT SUPPORTED
+; STICK & !EVEN & PARITY -> SPACE PARITY -> NOT SUPPORTED
+; THEREFORE, MARK PARITY WILL BE INTERPRETED AS EVEN PARITY
+; AND SPACE PARITY WILL BE INTERPRETED AS ODD PARITY
+
+UART0_LSR	.EQU	$C5
+UART0_THR	.EQU	$C0
+UART0_RBR	.EQU	$C0
+
+LSR_THRE	.EQU	$20
+LSR_DR		.EQU	$01
+
+EZUART_PREINIT:
+	LD	BC, EZUART_FNTBL
+	LD	DE, EZUART_CFG		
+	CALL	CIO_ADDENT
+	LD	(EZUART_ID), A
+
+	XOR	A
+	RET
+
+EZUART_INIT:
+	CALL	NEWLINE			; FORMATTING
+	CALL	PRTSTRD
+	.TEXT	"EZ80 UART: UART0$"
+
+	XOR	A
+	RET
+;
+; ### Function 0x00 -- Character Input (CIOIN)
+;
+; Read and return a Character (E).  If no character(s) are available in the
+; input buffer, this function will wait indefinitely.  The returned Status
+; (A) is a standard HBIOS result code.
+;
+; Outputs:
+;  E: Character
+;  A: Status (0-OK, else error)
+;
+EZUART_IN:
+	EZ80_UART_IN()			; CHAR RETURNED IN E
+	RET
+;
+; ### Function 0x01 -- Character Output (CIOOUT)
+;
+; Send the Character (E).  If there is no space available in the unit's output
+; buffer, the function will wait indefinitely.  The returned Status (A) is a
+; standard HBIOS result code.
+;
+; Inputs:
+;  E: Character
+;
+; Outputs:
+;  A: Status (0-OK, else error)
+;
+EZUART_OUT:
+	EZ80_UART_OUT()
+	RET
+;
+; ### Function 0x02 -- Character Input Status (CIOIST)
+;
+; Return the count of Characters Pending (A) in the input buffer.
+;
+; The value returned in register A is used as both a Status (A) code and
+; the return value. Negative values (bit 7 set) indicate a standard HBIOS
+; result (error) code.  Otherwise, the return value represents the number
+; of characters in the input buffer.
+;
+; Outputs:
+;  A: Status / Characters Pending
+;
+EZUART_IST:
+	EZ80_UART_IN_STAT()
+	RET
+;
+; ### Function 0x03 -- Character Output Status (CIOOST)
+;
+; Return the status of the output FIFO.  0 means the output FIFO is full and
+; no more characters can be sent. 1 means the output FIFO is not full and at
+; least one character can be sent.  Negative values (bit 7 set) indicate a
+; standard HBIOS result (error) code.
+;
+; Outputs
+;   A: Status (0 -> Full, 1 -> OK to send, < 0 -> HBIOS error code)
+;
+EZUART_OST:
+	EZ80_UART_OUT_STAT()
+	RET
+
+BAUD_RATE	.EQU	115200
+;
+; ### Function 0x04 -- Character I/O Initialization (CIOINIT)
+;
+; Apply the requested line Characteristics in (DE). The definition of the
+; line characteristics value is described above.  If DE contains -1 (0xFFFF),
+; then the input and output buffers will be flushed and reset.
+; The Status (A) is a standard HBIOS result code.
+;
+; Inputs:
+;   DE: Line Characteristics
+;
+; Outputs:
+;   A: Status (0-OK, else error)
+;
+EZUART_INITDEV:
+	LD	A, D
+	CP	E
+	JR	NZ, NOT_RESET
+	CP	$FF
+	JR	NZ, NOT_RESET
+
+	EZ80_UART_RESET()
+	RET
+
+NOT_RESET:
+	PUSH	DE			; SAVE LINE CHARACTERISTICS
+	LD	A, D
+	AND	$1F			; ISOLATE ENCODED BAUD RATE
+	LD	L, A			; PUT IN L
+	LD	H, 0			; H IS ALWAYS ZERO
+	LD	DE, 75			; BAUD RATE DECODE CONSTANT
+	CALL	DECODE			; DE:HL := BAUD RATE
+
+	EZ80_CPY_EHL_TO_UHL		; HL{23:0} <- E:HL{15:0}
+
+	POP	DE			; RESTORE REQUESTED LINE CHARACTERISTICS
+	LD	A, E
+	AND	3			; MASK FOR DATA BITS
+	RLCA
+	RLCA
+	RLCA				; SHIFT TO BITS 4:3
+	LD	D, A			; SAVE INTO D
+
+	BIT	2, E			; STOP BITS (1 OR 2)
+	JR	Z, ISKIP1
+	SET	2, D			; APPLY TO D
+ISKIP1:
+
+	BIT	3, E			; PARITY ENABLE
+	JR	Z, ISKIP2
+	SET	1, D			; APPLY TO D
+ISKIP2:
+
+	BIT	4, E			; EVEN PARITY
+	JR	Z, ISKIP3
+	SET	0, D			; APPLY TO D
+ISKIP3:
+
+	; D NOW CONTAINS THE LINE CONTROL BITS AS PER EZ80 FUNCTION
+
+	EZ80_UART_CONFIG()
+	RET
+
+#DEFINE	TRANSLATE(nnn,rrr) \
+#defcont \		LDBCMM.LIL(nnn)
+#defcont \		SBCHLBC.LIL
+#defcont \		JR	NC, $+7
+#defcont \		LD	D, rrr
+#defcont \		JP	uart_query_end
+;
+; ### Function 0x05 -- Character I/O Query (CIOQUERY)
+;
+; Returns the current Line Characteristics (DE). The definition of the line
+; characteristics value is described above. The returned status (A) is a
+; standard HBIOS result code.
+;
+; As the eZ80 UART driver supports more than the defined HBIOS baud rates, the
+; returned baud rate may be an approximation of the actual baud rate.
+;
+; Outputs:
+;  DE: Line Characteristics
+;  A: Status (0-OK, else error)
+;
+EZUART_QUERY:
+	EZ80_UART_QUERY()
+					; HL{23:0} := BAUD RATE
+					; D = LINE CONTROL BITS
+	PUSH	DE			; SAVE D
+
+	OR	A
+	; HL24 bit has the baud rate, we need to convert to the 5 bit representation?
+	TRANSLATE(112, 			00000b)	; BAUDRATE=75 (BETWEEN 0 AND 112)
+	TRANSLATE(187-112, 		00001b)	; BAUDRATE=150 (BETWEEN 113 AND 187)
+	TRANSLATE(262-187, 		10000b)	; BAUDRATE=225 (BETWEEN 188 AND 262)
+	TRANSLATE(375-262, 		00010b)	; BAUDRATE=300 (BETWEEN 263 AND 375)
+	TRANSLATE(525-375, 		10001b)	; BAUDRATE=450 (BETWEEN 376 AND 525)
+	TRANSLATE(750-525, 		00011b)	; BAUDRATE=600 (BETWEEN 526 AND 750)
+	TRANSLATE(1050-750, 		10010b)	; BAUDRATE=900 (BETWEEN 751 AND 1050)
+	TRANSLATE(1500-1050, 		00100b)	; BAUDRATE=1200 (BETWEEN 1051 AND 1500)
+	TRANSLATE(2100-1500, 		10011b)	; BAUDRATE=1800 (BETWEEN 1501 AND 2100)
+	TRANSLATE(3000-2100, 		00101b)	; BAUDRATE=2400 (BETWEEN 2101 AND 3000)
+	TRANSLATE(4200-3000, 		10100b)	; BAUDRATE=3600 (BETWEEN 3001 AND 4200)
+	TRANSLATE(6000-4200, 		00110b)	; BAUDRATE=4800 (BETWEEN 4201 AND 6000)
+	TRANSLATE(8400-6000, 		10101b)	; BAUDRATE=7200 (BETWEEN 6001 AND 8400)
+	TRANSLATE(12000-8400, 		00111b)	; BAUDRATE=9600 (BETWEEN 8401 AND 12000)
+	TRANSLATE(16800-12000, 		10110b)	; BAUDRATE=14400 (BETWEEN 12001 AND 16800)
+	TRANSLATE(24000-16800, 		01000b)	; BAUDRATE=19200 (BETWEEN 16801 AND 24000)
+	TRANSLATE(33600-24000, 		10111b)	; BAUDRATE=28800 (BETWEEN 24001 AND 33600)
+	TRANSLATE(48000-33600, 		01001b)	; BAUDRATE=38400 (BETWEEN 33601 AND 48000)
+	TRANSLATE(67200-48000, 		11000b)	; BAUDRATE=57600 (BETWEEN 48001 AND 67200)
+	TRANSLATE(96000-67200, 		01010b)	; BAUDRATE=76800 (BETWEEN 67201 AND 96000)
+	TRANSLATE(134400-96000, 	11001b)	; BAUDRATE=115200 (BETWEEN 96001 AND 134400)
+	TRANSLATE(192000-134400, 	01011b)	; BAUDRATE=153600 (BETWEEN 134401 AND 192000)
+	TRANSLATE(268800-192000, 	11010b)	; BAUDRATE=230400 (BETWEEN 192001 AND 268800)
+	TRANSLATE(384000-268800, 	01100b)	; BAUDRATE=307200 (BETWEEN 268801 AND 384000)
+	TRANSLATE(537600-384000, 	11011b)	; BAUDRATE=460800 (BETWEEN 384001 AND 537600)
+	TRANSLATE(768000-537600, 	01101b)	; BAUDRATE=614400 (BETWEEN 537601 AND 768000)
+	TRANSLATE(1075200-768000,	11100b)	; BAUDRATE=921600 (BETWEEN 768001 AND 1075200)
+	TRANSLATE(1536000-1075200,	01110b)	; BAUDRATE=1228800 (BETWEEN 1075201 AND 1536000)
+	TRANSLATE(2150400-1536000,	11101b)	; BAUDRATE=1843200 (BETWEEN 1536001 AND 2150400)
+	TRANSLATE(3072000-2150400,	01111b)	; BAUDRATE=2457600 (BETWEEN 2150401 AND 3072000)
+	TRANSLATE(5529600-3072000,	11110b)	; BAUDRATE=3686400 (BETWEEN 3072001 AND 5529600)
+
+	LD	D, 11111b			; BAUDRATE=7372800 (>=5529601)
+uart_query_end:
+
+	POP	BC				; B = LINE CONTROL BITS
+
+; Convert from line control settings from:
+;
+;     B{0:1} = Parity    (00 -> NONE, 01 -> NONE, 10 -> ODD, 11 -> EVEN)
+;     B{2}   = Stop Bits (0 -> 1, 1 -> 2)
+;     B{3:4} = Data Bits (00 -> 5, 01 -> 6, 10 -> 7, 11 -> 8)
+;     B{5:5} = Hardware Flow Control CTS (0 -> OFF, 1 -> ON)
+;
+; to
+;
+;     E{7}   = TODO: DTR
+;     E{6}   = NOT IMPLEMENTED: XON/XOFF Flow Control
+;     E{5}   = NOT SUPPORTED: Stick Parity (set for true)
+;     E{4}   = Even Parity (set for true)
+;     E{3}   = Parity Enable (set for true)
+;     E{2}   = Stop Bits (set for true)
+;     E{1:0} = Data Bits (5-8 encoded as 0-3)
+
+	XOR	A
+	OR	3 << 3		; ISOLATE DATA BITS
+	AND	B		; MASK IN DATA BITS
+
+	RRCA			; SHIFT TO BITS 1:0
+	RRCA
+	RRCA
+	LD	H, A		; H{1:0} DATA BITS
+
+	BIT	2, B		; STOP BITS
+	JR	Z, SKIP1
+	SET	2, H		; APPLY TO H
+
+SKIP1:
+	BIT	1, B		; PARITY ENABLE
+	JR	Z, SKIP2
+	SET	3, H		; APPLY TO H
+
+SKIP2:
+	BIT	0, B		; EVEN PARITY
+	JR	Z, SKIP3
+	SET	4, H		; APPLY TO H
+
+SKIP3:
+	LD	E, H
+	XOR	A
+	RET
+;
+; ### Function 0x06 -- Character I/O Device (CIODEVICE)
+;
+; Returns device information.  The status (A) is a standard HBIOS result
+; code.
+;
+; Outputs
+;  A: Status (0 - OK)
+;  C: Device Attribute (0 - RS/232)
+;  D: Device Type (CIODEV_EZ80UART)
+;  E: Physical Device Number
+;  H: Device Mode (0)
+;  L: Device I/O Base Address - Not Supported (0)
+;
+EZUART_DEVICE:
+	LD	D, CIODEV_EZ80UART	; D := DEVICE TYPE
+	LD	E, (IY)			; E := PHYSICAL UNIT
+	LD	C, 0			; C := DEVICE TYPE, 0x00 IS RS-232
+	LD	HL, 0			; H := MODE, L := BASE I/O ADDRESS
+	
+	XOR	A			; SIGNAL SUCCESS
+	RET
+
+EZUART_CFG:
+EZUART_ID:	.DB	0
+
+	
+EZUART_FNTBL:
+	.DW	EZUART_IN
+	.DW	EZUART_OUT
+	.DW	EZUART_IST
+	.DW	EZUART_OST
+	.DW	EZUART_INITDEV
+	.DW	EZUART_QUERY
+	.DW	EZUART_DEVICE
+#IF (($ - EZUART_FNTBL) != (CIO_FNCNT * 2))
+	.ECHO	"*** INVALID EZUART FUNCTION TABLE ***\n"
+#ENDIF
diff --git a/Source/HBIOS/fd.asm b/Source/HBIOS/fd.asm
index 5888f4a1..5edc02d1 100644
--- a/Source/HBIOS/fd.asm
+++ b/Source/HBIOS/fd.asm
@@ -883,30 +883,43 @@ FD_DETECT:
 	LD	(FST_DOR),A	; AND PUT IN SHADOW REGISTER
 	CALL	FC_RESETFDC	; RESET FDC
 	
-	IN	A,(FDC_MSR)	; READ MSR
+	IN_A_NN(FDC_MSR)	; READ MSR
 	;CALL	PC_SPACE	; *DEBUG*
 	;CALL	PRTHEXBYTE	; *DEBUG*
 	
 	CP	$D0		; SPECIAL CASE: DATA PENDING?
 	JR	NZ,FD_DETECT1	; NOPE, MOVE ALONG
-	IN	A,(FDC_DATA)	; SWALLOW THE PENDING DATA
+	IN_A_NN(FDC_DATA)	; SWALLOW THE PENDING DATA
 	CALL	DLY32		; SETTLE
-	IN	A,(FDC_MSR)	; ... AND REREAD THE STATUS
+	IN_A_NN(FDC_MSR)	; ... AND REREAD THE STATUS
 	;CALL	PC_SPACE	; *DEBUG*
 	;CALL	PRTHEXBYTE	; *DEBUG*
-
+;
 FD_DETECT1:
 	CP	$80		; WE EXPECT $80
-	RET	Z		; IF SO, ALL DONE
-
+	JR	Z,FD_DETECT2	; IF SO, CONTINUE CHECKING
+;
 	; WE HAVE SEEN AN FDC THAT NEEDS A SECOND READ TO GET
 	; DESIRED VALUE, SO TRY ONE MORE TIME
 	CALL	DLY32		; WAIT A BIT
-	IN	A,(FDC_MSR)	; ... AND REREAD THE STATUS
+	IN_A_NN(FDC_MSR)	; ... AND REREAD THE STATUS
 	;CALL	PC_SPACE	; *DEBUG*
 	;CALL	PRTHEXBYTE	; *DEBUG*
 	CP	$80		; CHECK FOR CORRECT VALUE
-	RET			; RETURN WITH ZF ACCORDING TO RESULT
+	RET	NZ		; RETURN IF FAILED WITH ZF RESET
+;
+FD_DETECT2:
+	; AS A FINAL TEST, WE REREAD THE MSR USING A DIFFERENT
+	; OPCODE.  THIS SHOULD ELIMINATE ANY FALSE POSITIVES FROM
+	; A FLOATING BUS.
+	CALL	DLY32		; WAIT A BIT
+	LD	C,FDC_MSR	; POINT TO MSR PORT
+	EZ80_IO
+	IN	A,(C)		; READ USING (C) FORM OF INPUT
+	;CALL	PC_SPACE	; *DEBUG*
+	;CALL	PRTHEXBYTE	; *DEBUG*
+	CP	$80		; CHECK FOR CORRECT VALUE
+	RET			; RETURN WITH ZF SET CORRECTLY
 ;
 ; UNIT INITIALIZATION
 ;
@@ -1212,13 +1225,13 @@ FD_RETRY1:
 ;
 FD_START:
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;#IF (DSKYDSKACT)
 	LD	A,4
 	CALL	LDHLIYA
 	CALL	HB_DSKACTCHS		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;#ENDIF
+;;;#ENDIF
 ;
 	LD	A,(FCD_FDCRDY)
 	CP	TRUE
@@ -1452,7 +1465,7 @@ FC_SETUPSPECIFY:
 ;
 FC_SETDOR:
 	LD	(FST_DOR),A
-	OUT	(FDC_DOR),A
+	OUT_NN_A(FDC_DOR)
 #IF (FDTRACE >= 3)
 	CALL	NEWLINE
 	LD	DE,FDSTR_DOR
@@ -1471,7 +1484,7 @@ FC_SETDOR:
 ;
 FC_SETDCR
 	LD	(FST_DCR),A
-	OUT	(FDC_DCR),A
+	OUT_NN_A(FDC_DCR)
 #IF (FDTRACE >= 3)
 	CALL	NEWLINE
 	LD	DE,FDSTR_DCR
@@ -1644,11 +1657,11 @@ FOP:
 	LD	B,0			; B IS LOOP COUNTER
 FOP_CLR1:
 	CALL	DELAY			; FDC MAY TAKE UP TO 12us TO UPDATE MSR
-	IN	A,(FDC_MSR)		; GET STATUS
+	IN_A_NN(FDC_MSR)		; GET STATUS
 	AND	0C0H			; ISOLATE HIGH NIBBLE, RQM/DIO/NDM/CB
 	CP	0C0H			; LOOKING FOR RQM=1, DIO=1, BYTES PENDING
 	JR	NZ,FOP_CMD1		; NO BYTES PENDING, GO TO NEXT PHASE
-	IN	A,(FDC_DATA)		; GET THE PENDING BYTE AND DISCARD
+	IN_A_NN(FDC_DATA)		; GET THE PENDING BYTE AND DISCARD
 	DJNZ	FOP_CLR1
 	JP	FOP_TOFDCRDY		; OTHERWISE, TIMEOUT
 ;
@@ -1664,7 +1677,7 @@ FOP_CMD2:	; START OF LOOP TO SEND NEXT BYTE
 
 FOP_CMD4:	; START OF STATUS LOOP, WAIT FOR FDC TO BE READY FOR BYTE
 	CALL	DELAY			; FDC MAY TAKE UP TO 12us TO UPDATE MSR
-	IN	A,(FDC_MSR)		; READ MAIN STATUS REGISTER
+	IN_A_NN(FDC_MSR)		; READ MAIN STATUS REGISTER
 	AND	0C0H			; ISOLATE RQM/DIO
 	CP	080H			; LOOKING FOR RQM=1, DIO=0 (FDC READY FOR A BYTE)
 	JR	Z,FOP_CMD6		; GOOD, GO TO SEND BYTE
@@ -1675,7 +1688,7 @@ FOP_CMD4:	; START OF STATUS LOOP, WAIT FOR FDC TO BE READY FOR BYTE
 
 FOP_CMD6:	; SEND NEXT BYTE
 	LD	A,(HL)			; POINT TO NEXT BYTE TO SEND
-	OUT	(FDC_DATA),A		; PUSH IT TO FDC
+	OUT_NN_A(FDC_DATA)		; PUSH IT TO FDC
 	INC	HL			; INCREMENT POINTER FOR NEXT TIME
 	DEC	D			; DECREMENT NUM BYTES LEFT TO SEND
 	JR	NZ,FOP_CMD2		; DO NEXT BYTE
@@ -1706,7 +1719,7 @@ FXR_NULL:
 	LD	BC,$7000		; LOOP COUNTER, $7000 * 16us = ~485ms
 FXR_NULL1:
 	CALL	DELAY			; FDC MAY TAKE UP TO 12us TO UPDATE MSR
-	IN	A,(FDC_MSR)		; GET MSR
+	IN_A_NN(FDC_MSR)		; GET MSR
 	AND	0E0H			; ISOLATE RQM/DIO/NDM
 	CP	0C0H			; WE WANT RQM=1,DIO=1,NDM=0 (READY TO READ A BYTE W/ EXEC INACTIVE)
 	JP	Z,FOP_RES		; EXEC DONE, EXIT CLEAN W/O PULSING TC
@@ -1737,13 +1750,13 @@ FXR_READ:
 	LD	(FCD_TO),A		; INIT TIMEOUT COUNTER
 FXRR1	LD	C,0			; OUTER LOOP TIMEOUT COUNTER
 FXRR2:	LD	B,0			; SETUP FOR 256 ITERATIONS
-FXRR3:	IN	A,(FDC_MSR)		; GET MSR
+FXRR3:	IN_A_NN(FDC_MSR)		; GET MSR
 	CP	0F0H			; WE WANT RQM=1,DIO=1,NDM=1,BUSY=1 (READY TO RECEIVE A BYTE W/ EXEC ACTIVE)
 	JR	Z,FXRR4			; GOT IT, DO BYTE READ
 	DJNZ	FXRR3			; NOT READY, LOOP IF COUNTER NOT ZERO
 	JR	FXRR5			; COUNTER ZERO, GO TO OUTER LOOP LOGIC
 
-FXRR4:	IN	A,(FDC_DATA)		; GET PENDING BYTE
+FXRR4:	IN_A_NN(FDC_DATA)		; GET PENDING BYTE
 	LD	(HL),A			; STORE IT IN BUFFER
 	INC	HL			; INCREMENT THE BUFFER POINTER
 	DEC	DE			; DECREMENT BYTE COUNT
@@ -1780,13 +1793,13 @@ FXR_WRITE:
 	LD	(FCD_TO),A
 FXRW1	LD	C,0			; OUTER LOOP TIMEOUT COUNTER
 FXRW2:	LD	B,0			; SETUP FOR 256 ITERATIONS
-FXRW3:	IN	A,(FDC_MSR)		; GET MSR
+FXRW3:	IN_A_NN(FDC_MSR)		; GET MSR
 	CP	0B0H			; WE WANT RQM=1,DIO=0,NDM=1,BUSY=1 (READY TO SEND A BYTE W/ EXEC ACTIVE)
 	JR	Z,FXRW4			; GOT IT, DO BYTE WRITE
 	DJNZ	FXRW3			; NOT READY, LOOP IF COUNTER NOT ZERO
 	JR	FXRW5			; COUNTER ZERO, GO TO OUTER LOOP LOGIC
 FXRW4:	LD	A,(HL)			; GET NEXT BYTE TO WRITE
-	OUT	(FDC_DATA),A		; WRITE IT
+	OUT_NN_A(FDC_DATA)		; WRITE IT
 	INC	HL			; INCREMENT THE BUFFER POINTER
 	DEC	DE			; DECREMENT LOOP COUNTER
 	LD	A,D
@@ -1830,7 +1843,7 @@ FOP_RES0:
 
 FOP_RES1:
 	CALL	DELAY			; FDC MAY TAKE UP TO 12us TO UPDATE MSR
-	IN	A,(FDC_MSR)		; READ MAIN STATUS REGISTER
+	IN_A_NN(FDC_MSR)		; READ MAIN STATUS REGISTER
 	AND	0F0H			; ISOLATE RQM/DIO/EXEC/BUSY
 	CP	0D0H			; LOOKING FOR RQM/DIO/BUSY
 	JR	Z,FOP_RES2		; GOOD, GO TO RECEIVE BYTE
@@ -1848,7 +1861,7 @@ FOP_RES2:	; PROCESS NEXT PENDING BYTE
 	LD	A,FRB_SIZ		; GET BUF SIZE
 	CP	D			; REACHED MAX?
 	JR	Z,FOP_BUFMAX		; HANDLE BUF MAX/EXIT
-	IN	A,(FDC_DATA)		; GET THE BYTE
+	IN_A_NN(FDC_DATA)		; GET THE BYTE
 	LD	(HL),A			; SAVE VALUE
 	INC	HL			; INCREMENT BUF POS
 	INC	D			; INCREMENT BYTES RECEIVED
@@ -2225,4 +2238,4 @@ FCD_FDCRDY	.DB	0		; FALSE MEANS FDC RESET NEEDED
 FD_DSKBUF	.DW	0
 FD_CURGEOM	.EQU	$		; TWO BYTES BELOW
 FD_CURSPT	.DB	0		; CURRENT SECTORS PER TRACK
-FD_CURHDS	.DB	0		; CURRENT HEADS
\ No newline at end of file
+FD_CURHDS	.DB	0		; CURRENT HEADS
diff --git a/Source/HBIOS/fv.asm b/Source/HBIOS/fv.asm
new file mode 100644
index 00000000..57041386
--- /dev/null
+++ b/Source/HBIOS/fv.asm
@@ -0,0 +1,497 @@
+;======================================================================
+;	VIDEO DRIVER FOR FPGA VGA
+;	http://s100computers.com/My%20System%20Pages/FPGA%20Z80%20SBC/FPGA%20Z80%20SBC.htm
+;
+;	WRITTEN BY: WAYNE WARTHEN -- 9/2/2024
+;======================================================================
+;
+; FPGA VGA EXPOSES A FRAME BUFFER STARTING AT $E000.
+; PORT $08 CONTROLS ACCESS TO THE FRAME BUFFER.
+;   - WHEN $01, FRAME BUFFER APPEARS AT $E000 IN CPU ADDRESS SPACE
+;   - WHEN $00, FRAME BUFFER IS INACCESSIBLE BY CPU
+; PORT $C0: SET/GET CURSOR COL
+; PORT $C1: SET/GET CURSOR ROW
+; PORT $C2: CONTROLS VGA OUTPUT
+;  BIT 0: BLUE
+;  BIT 1: GREEN
+;  BIT 2: RED
+;  BIT 3: UNUSED?
+;  BIT 4: CURSOR MODE
+;  BIT 5: CURSOR BLINK
+;  BIT 6: CURSOR ENABLE
+;  BIT 7: VGA SIGNAL OUTPUT ENABLE
+; PORT $08: BUFFER SELECT, 1=SELECTED
+;
+; TODO:
+;
+;======================================================================
+; FPGA VGA DRIVER - CONSTANTS
+;======================================================================
+;
+FV_FBUF		.EQU	$E000		; ADDRESS OF FRAME BUFFER
+FV_BASE		.EQU	$C0		; BASE I/O ADDRESS
+FV_CCOL		.EQU	FV_BASE+0	; CUR COL PORT
+FV_CROW		.EQU	FV_BASE+1	; CUR ROW PORT
+FV_CTL		.EQU	FV_BASE+2	; VGA CONTROL PORT
+;
+FV_BUFCTL	.EQU	$08
+;
+FV_KBDDATA	.EQU	$03
+FV_KBDST	.EQU	$02
+;
+FV_ROWS	.EQU	40
+FV_COLS	.EQU	80
+;
+TERMENABLE	.SET	TRUE		; INCLUDE TERMINAL PSEUDODEVICE DRIVER
+;;;KBDENABLE	.SET	TRUE		; INCLUDE KBD KEYBOARD SUPPORT
+;
+		DEVECHO	"FV: IO="
+		DEVECHO	FV_BASE
+		DEVECHO	", KBD MODE=FV"
+		DEVECHO	", KBD IO="
+		DEVECHO	FV_KBDDATA
+		DEVECHO	"\n"
+;
+;======================================================================
+; FPGA VGA DRIVER - INITIALIZATION
+;======================================================================
+;
+FV_INIT:
+	LD	IY,FV_IDAT		; POINTER TO INSTANCE DATA
+;
+	CALL	NEWLINE			; FORMATTING
+	PRTS("FV: IO=0x$")
+	LD	A,FV_BASE
+	CALL	PRTHEXBYTE
+	CALL	FV_PROBE		; CHECK FOR HW PRESENCE
+	JR	Z,FV_INIT1		; CONTINUE IF HW PRESENT
+;
+	; HARDWARE NOT PRESENT
+	PRTS(" NOT PRESENT$")
+	OR	$FF			; SIGNAL FAILURE
+	RET
+;
+FV_INIT1:
+	; RECORD DRIVER ACTIVE
+	OR	$FF
+	LD	(FV_ACTIVE),A
+	; DISPLAY CONSOLE DIMENSIONS
+	LD	A,FV_COLS
+	CALL	PC_SPACE
+	CALL	PRTDECB
+	LD	A,'X'
+	CALL	COUT
+	LD	A,FV_ROWS
+	CALL	PRTDECB
+	PRTS(" TEXT$")
+
+	; HARDWARE INITIALIZATION
+	CALL 	FV_CRTINIT		; SETUP THE FPGA VGA CHIP REGISTERS
+	CALL	FV_VDAINI		; INITIALIZE
+	;CALL	KBD_INIT		; INITIALIZE KEYBOARD DRIVER
+
+	; ADD OURSELVES TO VDA DISPATCH TABLE
+	LD	BC,FV_FNTBL		; BC := FUNCTION TABLE ADDRESS
+	LD	DE,FV_IDAT		; DE := FPGA VGA INSTANCE DATA PTR
+	CALL	VDA_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
+
+	; INITIALIZE EMULATION
+	LD	C,A			; C := ASSIGNED VIDEO DEVICE NUM
+	LD	DE,FV_FNTBL		; DE := FUNCTION TABLE ADDRESS
+	LD	HL,FV_IDAT		; HL := FPGA VGA INSTANCE DATA PTR
+	CALL	TERM_ATTACH		; DO IT
+
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+;======================================================================
+; FPGA VGA DRIVER - VIDEO DISPLAY ADAPTER (VDA) FUNCTIONS
+;======================================================================
+;
+FV_FNTBL:
+	.DW	FV_VDAINI
+	.DW	FV_VDAQRY
+	.DW	FV_VDARES
+	.DW	FV_VDADEV
+	.DW	FV_VDASCS
+	.DW	FV_VDASCP
+	.DW	FV_VDASAT
+	.DW	FV_VDASCO
+	.DW	FV_VDAWRC
+	.DW	FV_VDAFIL
+	.DW	FV_VDACPY
+	.DW	FV_VDASCR
+	.DW	FV_STAT
+	.DW	FV_FLUSH
+	.DW	FV_READ
+	.DW	FV_VDARDC
+#IF (($ - FV_FNTBL) != (VDA_FNCNT * 2))
+	.ECHO	"*** INVALID FV FUNCTION TABLE ***\n"
+	!!!!!
+#ENDIF
+
+FV_VDAINI:
+	; RESET VDA
+	CALL	FV_VDARES	; RESET VDA
+	LD	HL,0		; ZERO
+	LD	(FV_POS),HL	; ... TO POSITION
+	LD	A,' '		; BLANK THE SCREEN
+	LD	DE,FV_ROWS*FV_COLS	; FILL ENTIRE BUFFER
+	CALL	FV_FILL		; DO IT
+	LD	DE,0		; ROW = 0, COL = 0
+	CALL	FV_XY		; SEND CURSOR TO TOP LEFT
+	CALL	FV_SHOWCUR	; NOW SHOW THE CURSOR
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDAQRY:
+	LD	C,$00		; MODE ZERO IS ALL WE KNOW
+	LD	D,FV_ROWS	; ROWS
+	LD	E,FV_COLS	; COLS
+	LD	HL,0		; EXTRACTION OF CURRENT BITMAP DATA NOT SUPPORTED
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDARES:
+	CALL	 FV_CRTINIT
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDADEV:
+	LD	D,VDADEV_FV	; D := DEVICE TYPE
+	LD	E,0		; E := PHYSICAL UNIT IS ALWAYS ZERO
+	LD	H,0		; H := 0, DRIVER HAS NO MODES
+	LD	L,FV_BASE	; L := BASE I/O ADDRESS
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDASCS:
+	SYSCHKERR(ERR_NOTIMPL)	; NOT IMPLEMENTED (YET)
+	RET
+
+FV_VDASCP:
+	CALL	FV_XY		; SET CURSOR POSITION
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDASAT:
+	; ATTRIBUTES NOT SUPPORTED BY HARDWARE
+	XOR	A
+	RET
+
+FV_VDASCO:
+	; CHARACTER COLOR NOT SUPPORT BY HARDWARE
+	XOR	A		; SIGNAL SUCCESS
+	RET			; DONE
+
+FV_VDAWRC:
+	LD	A,E		; CHARACTER TO WRITE GOES IN A
+	CALL	FV_PUTCHAR	; PUT IT ON THE SCREEN
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDAFIL:
+	LD	A,E		; FILL CHARACTER GOES IN A
+	EX	DE,HL		; FILL LENGTH GOES IN DE
+	CALL	FV_FILL		; DO THE FILL
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+FV_VDACPY:
+	; LENGTH IN HL, SOURCE ROW/COL IN DE, DEST IS FV_POS
+	; BLKCPY USES: HL=SOURCE, DE=DEST, BC=COUNT
+	PUSH	HL		; SAVE LENGTH
+	CALL	FV_XY2IDX	; ROW/COL IN DE -> SOURCE ADR IN HL
+	POP	BC		; RECOVER LENGTH IN BC
+	LD	DE,(FV_POS)	; PUT DEST IN DE
+	JP	FV_BLKCPY	; DO A BLOCK COPY
+
+FV_VDASCR:
+	LD	A,E		; LOAD E INTO A
+	OR	A		; SET FLAGS
+	RET	Z		; IF ZERO, WE ARE DONE
+	PUSH	DE		; SAVE E
+	JP	M,FV_VDASCR1	; E IS NEGATIVE, REVERSE SCROLL
+	CALL	FV_SCROLL	; SCROLL FORWARD ONE LINE
+	POP	DE		; RECOVER E
+	DEC	E		; DECREMENT IT
+	JR	FV_VDASCR	; LOOP
+FV_VDASCR1:
+	CALL	FV_RSCROLL	; SCROLL REVERSE ONE LINE
+	POP	DE		; RECOVER E
+	INC	E		; INCREMENT IT
+	JR	FV_VDASCR	; LOOP
+
+FV_STAT:
+	IN	A,(FV_KBDST)		; GET STATUS
+	AND	$01			; ISOLATE DATA WAITING BIT
+	JP	Z,CIO_IDLE		; NO DATA, EXIT VIA IDLE PROCESS
+	RET
+
+FV_FLUSH:
+	XOR	A			; SIGNAL SUCCESS
+	RET
+
+FV_READ:
+	CALL	FV_STAT			; GET STATUS
+	JR	Z,FV_READ		; LOOP TILL DATA READY
+	IN	A,(FV_KBDDATA)		; GET BYTE
+	LD	E,A			; PUT IN E FOR RETURN
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+
+;----------------------------------------------------------------------
+; READ VALUE AT CURRENT VDU BUFFER POSITION
+; RETURN E = CHARACTER, B = COLOUR, C = ATTRIBUTES
+;----------------------------------------------------------------------
+
+FV_VDARDC:
+	CALL	FV_GETCHAR	; GET THE CHARACTER AT CUR CUR POS
+	LD	E,A		; PUT IN E
+	LD	BC,0		; COLOR AND ATTR NOT SUPPORTED
+	XOR	A		; SIGNAL SUCCESS
+	RET
+;
+;======================================================================
+; FPGA VGA DRIVER - PRIVATE DRIVER FUNCTIONS
+;======================================================================
+;
+;
+;----------------------------------------------------------------------
+; PROBE FOR FPGA VGA HARDWARE
+;----------------------------------------------------------------------
+;
+; ON RETURN, ZF SET INDICATES HARDWARE FOUND
+;
+FV_PROBE:
+	XOR	A			; ASSUME H/W EXISTS
+	RET
+;
+;----------------------------------------------------------------------
+; CRTC DISPLAY CONTROLLER CHIP INITIALIZATION
+;----------------------------------------------------------------------
+;
+FV_CRTINIT:
+	LD	A,%11001111		; WHITE ON BLACK, CURSOR ON, ENABLE OUTPUT
+	OUT	(FV_CTL),A		; WRITE TO CONTROL PORT
+	XOR	A			; ZERO ACCUM
+	RET				; DONE
+;
+;----------------------------------------------------------------------
+; SET CURSOR POSITION TO ROW IN D AND COLUMN IN E
+;----------------------------------------------------------------------
+;
+FV_XY:
+	CALL	FV_HIDECUR		; HIDE THE CURSOR
+	PUSH	DE			; SAVE NEW POSITION FOR NOW
+	CALL	FV_XY2IDX		; CONVERT ROW/COL TO BUF IDX
+	LD	(FV_POS),HL		; SAVE THE RESULT (DISPLAY POSITION)
+	POP	DE			; RECOVER INCOMING ROW/COL
+	LD	A,D			; GET ROW
+	OUT	(FV_CROW),A		; SET ROW REGISTER
+	LD	A,E			; GET COL
+	INC	A			; 1..79,0 (WHY???)
+	CP	80			; COL 80?
+	JR	NZ, FV_XY1		; SKIP IF NOT
+	XOR	A			; ELSE MAKE IT ZERO!
+FV_XY1:
+	OUT	(FV_CCOL),A		; SET COL REGISTER
+	JP	FV_SHOWCUR		; SHOW THE CURSOR AND EXIT
+;
+;----------------------------------------------------------------------
+; CONVERT XY COORDINATES IN DE INTO LINEAR INDEX IN HL
+; D=ROW, E=COL
+;----------------------------------------------------------------------
+;
+FV_XY2IDX:
+	LD	A,E			; SAVE COLUMN NUMBER IN A
+	LD	H,D			; SET H TO ROW NUMBER
+	LD	E,FV_COLS		; SET E TO ROW LENGTH
+	CALL	MULT8			; MULTIPLY TO GET ROW OFFSET, H * E = HL, E=0, B=0
+	LD	E,A			; GET COLUMN BACK
+	ADD	HL,DE			; ADD IT IN
+	RET				; RETURN
+;
+;----------------------------------------------------------------------
+; SHOW OR HIDE CURSOR
+;----------------------------------------------------------------------
+;
+FV_SHOWCUR:
+	LD	A,%11001111		; CONTROL PORT VALUE
+	;;;LD	A,%11111111		; CONTROL PORT VALUE
+	OUT	(FV_CTL),A		; SET REGISTER
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+FV_HIDECUR:
+	LD	A,%11001111		; CONTROL PORT VALUE
+	;;;LD	A,%11111111		; CONTROL PORT VALUE
+	OUT	(FV_CTL),A		; SET REGISTER
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+;----------------------------------------------------------------------
+; (DE)SELECT FRAME BUFFER
+;----------------------------------------------------------------------
+;
+FV_BUFSEL:
+	PUSH	AF
+	LD	A,$01
+	OUT	(FV_BUFCTL),A
+	POP	AF
+	RET
+;
+FV_BUFDESEL:
+	PUSH	AF
+	XOR	A
+	OUT	(FV_BUFCTL),A
+	POP	AF
+	RET
+;
+;----------------------------------------------------------------------
+; WRITE VALUE IN A TO CURRENT VDU BUFFER POSITION, ADVANCE CURSOR
+;----------------------------------------------------------------------
+;
+FV_PUTCHAR:
+	; WRITE CHAR AT CURRENT CURSOR POSITION.
+	PUSH	AF			; SAVE INCOMING CHAR
+	CALL	FV_HIDECUR		; HIDE CURSOR
+	CALL	FV_BUFSEL		; SELECT FRAME BUFFER
+	POP	AF
+	LD	HL,(FV_POS)		; GET CUR BUF POSITION
+	LD	DE,FV_FBUF		; START OF FRAME BUF
+	ADD	HL,DE			; ADD IT IN
+	LD	(HL),A			; PUT THE CHAR
+;
+	; SET NEW POSITION
+	LD	HL,(FV_POS)		; GET POSITION
+	INC	HL			; BUMP POSITION
+	LD	(FV_POS),HL		; SAVE NEW POSITION
+;
+	; PUT CUROR IN PLACE
+	LD	DE,FV_COLS		; COLS PER LINE
+	CALL	DIV16			; BC=ROW, HL=COL
+	LD	D,C
+	LD	E,L
+	CALL	FV_XY
+	CALL	FV_BUFDESEL		; DESELECT FRAME BUFFER
+	JP	FV_SHOWCUR		; SHOW IT AND RETURN
+;
+;----------------------------------------------------------------------
+; GET CHAR VALUE TO A FROM CURRENT VDU BUFFER POSITION
+;----------------------------------------------------------------------
+;
+FV_GETCHAR:
+	XOR	A
+	RET
+;
+;----------------------------------------------------------------------
+; FILL AREA IN BUFFER WITH SPECIFIED CHARACTER AND CURRENT COLOR/ATTRIBUTE
+; STARTING AT THE CURRENT FRAME BUFFER POSITION
+;   A: FILL CHARACTER
+;   DE: NUMBER OF CHARACTERS TO FILL
+;----------------------------------------------------------------------
+;
+FV_FILL:
+	PUSH	AF			; SAVE INCOMING FILL CHAR
+	CALL	FV_HIDECUR		; HIDE CURSOR
+	CALL	FV_BUFSEL		; SELECT BUFFER
+	LD	HL,(FV_POS)		; CUR POS TO HL
+	LD	BC,FV_FBUF		; ADR OF FRAME
+	ADD	HL,BC			; ADD IT IN
+	POP	AF
+	LD	C,A			; FILL CHAR TO C
+FV_FILL1:
+	LD	A,D			; CHECK FILL
+	OR	E			; ... COUNTER
+	JR	Z,FV_FILL2		; DONE IF ZERO
+	LD	(HL),C			; FILL ONE CHAR
+	INC	HL			; BUMP BUF PTR
+	DEC	DE			; DEC FILL COUNTER
+	JR	FV_FILL1		; LOOP
+;
+FV_FILL2:
+	CALL	FV_BUFDESEL		; DESELECT BUFFER
+	JP	FV_SHOWCUR		; EXIT VIA SHOW CURSOR
+;
+;----------------------------------------------------------------------
+; SCROLL ENTIRE SCREEN FORWARD BY ONE LINE (CURSOR POSITION UNCHANGED)
+;----------------------------------------------------------------------
+;
+FV_SCROLL:
+	CALL	FV_BUFSEL				; SELECT FRAME BUFFER
+;
+	; COPY "UP" ONE LINE
+	LD	HL,FV_FBUF + FV_COLS 			; FROM SECOND LINE
+	LD	DE,FV_FBUF				; TO FIRST LINE
+	LD	BC,+(FV_ROWS - 1) * FV_COLS		; ALL BUT ONE LINE
+	LDIR						; DO IT
+;
+	; FILL LAST LINE OF SCREEN
+	LD	HL,FV_FBUF + ((FV_ROWS - 1) * FV_COLS)	; LAST LINE
+	LD	A,' '					; FILL CHAR
+	LD	(HL),A					; COPY 1 CHAR
+	LD	DE,FV_FBUF + ((FV_ROWS - 1) * FV_COLS) + 1	; SECOND POS IN LAST LINE
+	LD	BC,FV_COLS - 1				; COLS PER LINE - 1
+	LDIR						; FILL IT
+;
+	CALL	FV_BUFDESEL				; DESELECT FRAME BUFFER
+	RET						; DONE
+;
+;----------------------------------------------------------------------
+; REVERSE SCROLL ENTIRE SCREEN BY ONE LINE (CURSOR POSITION UNCHANGED)
+;----------------------------------------------------------------------
+;
+FV_RSCROLL:
+	CALL	FV_BUFSEL				; SELECT FRAME BUFFER
+;
+	; COPY "DOWN" ONE LINE
+	LD	HL,FV_FBUF + (FV_COLS * (FV_ROWS - 1)) - 1 	; FROM END OF SECOND TO LAST LINE
+	LD	DE,FV_FBUF + (FV_COLS * FV_ROWS) - 1	; TO END OF LAST LINE
+	LD	BC,+(FV_ROWS - 1) * FV_COLS		; ALL BUT ONE LINE
+	LDDR						; DO IT IN REVERSE
+;
+	; FILL FIRST LINE OF SCREEN
+	LD	HL,FV_FBUF				; FIRST LINE
+	LD	A,' '					; FILL CHAR
+	LD	(HL),A					; COPY 1 CHAR
+	LD	DE,FV_FBUF + 1				; SECOND POS IN FIRST LINE
+	LD	BC,FV_COLS - 1				; COLS PER LINE - 1
+	LDIR						; FILL IT
+;
+	CALL	FV_BUFDESEL				; DESELECT FRAME BUFFER
+	RET						; DONE
+;
+;----------------------------------------------------------------------
+; BLOCK COPY BC BYTES FROM HL TO DE
+;----------------------------------------------------------------------
+;
+FV_BLKCPY:
+
+	CALL	FV_BUFSEL				; SELECT FRAME BUFFER
+	PUSH	BC					; SAVE LENGTH
+	LD	BC,FV_FBUF				; FRAME BUFFER ADR
+	ADD	HL,BC					; ADD TO SOURCE
+	EX	DE,HL					; EXCHANGE
+	ADD	HL,BC					; ADD TO DEST
+	EX	DE,HL					; EXCHANGE
+	POP	BC					; RECOVER LENGTH
+	LDIR						; LDIR DOES THE COPY
+	CALL	FV_BUFDESEL				; DESELECT FRAME BUFFER
+	RET						; DONE
+;
+;==================================================================================================
+;   FPGA VGA DRIVER - DATA
+;==================================================================================================
+;
+FV_POS		.DW 	0	; CURRENT DISPLAY POSITION
+FV_ACTIVE	.DB	FALSE	; FLAG FOR DRIVER ACTIVE
+;
+;==================================================================================================
+;   VGA DRIVER - INSTANCE DATA
+;==================================================================================================
+;
+FV_IDAT:
+	.DB	KBDMODE_FV	; FPGA VGA KEYBOARD CONTROLLER
+	.DB	FV_KBDST
+	.DB	FV_KBDDATA
diff --git a/Source/HBIOS/gm7303.asm b/Source/HBIOS/gm7303.asm
new file mode 100644
index 00000000..732926c0
--- /dev/null
+++ b/Source/HBIOS/gm7303.asm
@@ -0,0 +1,641 @@
+;
+;==================================================================================================
+; HARDWARE SUPPORT FOR GENESS MODULES 7303 STD BUS KEYBOARD/GM7303
+;  - INCORPORATES HITACHI HD44780 AS 2 X 16 DISPLAY AND 24 KEY HEX KEYPAD
+;==================================================================================================
+; 
+; Heavily derived from the lcd.asm driver, but forked because the 7303 card has keyboard 
+; functionality as well.  Eventually will be used as a Z80/180 monitor tool
+;
+; The GM7303 supports an LCD display while the original has 2 DL1416 starburst displays. 
+;==================================================================================================
+;
+; CARD FUNCTIONS:	(BASE_IO = 0x30)
+;
+; 20X2 LCD 		0X30 OUTPUT (D0-D7)
+;			0X31 OUTPUT (D0 - LCD E)
+;					(D1 - LCD R/W*)
+;					(D2 - LCD RS)
+; S1 & S2 INPUT	0x30 INPUT  (BIT 6,7)
+; 8 OUTPUT LEDS	0x30 OUTPUT 
+; KEYBOARD		0X30 OUTPUT (COLUMN BIT 0-3)
+;			0X30 INPUT  (ROW BIT 0-5)
+;
+; GM7303 SCAN CODES ARE ONE BYTE: CCRRRRRR
+; BITS 7-6 IDENTFY THE COLUMN OF THE KEY PRESSED
+; BITS 5-0 ARE A BITMAP, WITH A BIT OFF TO INDICATE ROW KEY PRESSED
+;    ROW INPUTS ARE HELD lOW (NOTING I/P OF ROW BUFFER IS INVERTING) 
+;
+;      ___Col0_______Col1______Col2_______Col3____
+; Row5|	 $20 [14]   $60 [15]   $A0 [16]	  $E0 [17]
+; Row4|	 $10 [10]   $50 [11]   $90 [12]	  $D0 [13]
+; Row3|	 $08 [C]    $48 [D]    $88 [E]	  $C8 [F]
+; Row2|	 $04 [8]    $44 [9]    $84 [A]	  $C4 [B]
+; Row1|	 $02 [4]    $42 [5]    $82 [6]	  $C2 [7]
+; Row0|	 $01 [0]    $41 [1]    $81 [2]	  $C1 [3]
+;
+;===================================================================================================
+;
+;  Date		Change
+;  05Sep2024	Initial development - basic init functions
+;  06Sep2024 	Working - Cleaned out functions that wont be used - TODO - Implement keyboard
+;
+;
+GM7303_DATA	.EQU	GM7303BASE + 0	; WRITE
+GM7303_CTRL	.EQU	GM7303BASE + 1	; WRITE
+GM7303_KYBD	.EQU	GM7303BASE + 0	; READ/WRITE
+;
+GM7303_FUNC_CLEAR	.EQU	$01		; CLEAR DISPLAY
+GM7303_FUNC_HOME	.EQU	$02		; HOME CURSOR & REMOVE ALL SHIFTING
+GM7303_FUNC_ENTRY	.EQU	$04		; SET CUR DIR AND DISPLAY SHIFT
+GM7303_FUNC_DISP	.EQU	$08		; DISP, CUR, BLINK ON/OFF
+GM7303_FUNC_SHIFT	.EQU	$10		; MOVE CUR / SHIFT DISP
+GM7303_FUNC_SET		.EQU	$20		; SET INTERFACE PARAMS
+GM7303_FUNC_CGADR	.EQU	$40		; SET CGRAM ADRESS
+GM7303_FUNC_DDADR	.EQU	$80		; SET DDRAM ADDRESS
+;
+	DEVECHO	"GM7303: IO="
+	DEVECHO	GM7303BASE
+	DEVECHO	"\n"
+;
+; HARDWARE RESET PRIOR TO ROMWBW CONSOLE INITIALIZATION
+;
+GM7303_PREINIT:
+	
+; TEST FOR PRESENCE...
+	CALL	GM7303_DETECT		; PROBE FOR HARDWARE
+	LD	A,(GM7303_PRESENT)	; GET PRESENCE FLAG
+	OR	A			; SET FLAGS
+	RET	Z			; BAIL OUT IF NOT PRESENT	
+
+	; REGISTER DRIVER WITH HBIOS
+	LD	BC,GM7303_DISPATCH
+	CALL	DSKY_SETDISP
+;
+; INITIALISE LCD
+	CALL	GM7303_RESETLCD		; RESET THE LCD
+	PUSH 	HL
+	LD	HL,GM7303_INIT_TBL
+	LD	D,04H			; 4 BYTES TO SEND
+NEXT_INIT:
+	LD	A,(HL)			; GET COMMAND
+	OUT	(GM7303_DATA),A		; WRITE TO TO DISPLAY
+	CALL	CMD_STROBE		; COMMAND STROBE
+	PUSH	DE
+	LD	DE,5000/16		; WAIT >4MS, WE USE 5MS
+	CALL	VDELAY			; DO IT
+	POP	DE
+	INC	HL
+	DEC	D			; (D)=00 -> COMMAND
+	JR	NZ,NEXT_INIT		;   NO - DO NEXT INIT COMMAND
+	POP  HL
+;
+; PUT SOMETHING ON THE DISPLAY
+	LD	DE,GM7303_STR_BAN	; DISPLAY BANNER
+	CALL	GM7303_OUTDS
+
+; SECOND LINE
+	LD	HL,$0100		; ROW 2, COL 0
+	CALL	GM7303_GOTORC
+	LD	DE,GM7303_STR_CFG	; DISPLAY CONFIG
+	CALL	GM7303_OUTDS
+
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+; POST CONSOLE INITIALIZATION
+;
+GM7303_INIT:
+	CALL	NEWLINE			; FORMATTING
+	PRTS("GM7303: IO=$")
+	LD	A,GM7303BASE
+	CALL	PRTHEXBYTE
+;
+	LD	A,(GM7303_PRESENT)	; GET PRESENCE FLAG
+	OR	A			; SET FLAGS
+	JR	Z,GM7303_INIT1		; HANDLE NOT PRESENT
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+GM7303_INIT1:
+	PRTS(" NOT PRESENT$")
+	OR	$FF
+	RET
+
+
+GM7303_DISPATCH:
+	LD	A,B			; GET REQUESTED FUNCTION
+	AND	$0F			; ISOLATE SUB-FUNCTION
+	JP	Z,GM7303_RESET		; RESET DSKY HARDWARE
+	DEC	A	
+	JP	Z,GM7303_STAT		; GET KEYPAD STATUS
+	DEC	A	
+	JP	Z,GM7303_GETKEY		; READ A KEY FROM THE KEYPAD
+	DEC	A	
+	JP	Z,GM7303_SHOWHEX	; DISPLAY A 32-BIT BINARY VALUE IN HEX
+	DEC	A	                
+	;;;JP	Z,GM7303_SHOWASCII	; DISPLAY ASCII TEXT
+	JP	Z,GM7303_SHOWSEG	; DISPLAY SEGMENT MAPPED TEXT
+	DEC	A	
+	JP	Z,GM7303_KEYLEDS	; SET KEYPAD LEDS
+	DEC	A	
+	JP	Z,GM7303_STATLED	; SET STATUS LED
+	DEC	A	
+	JP	Z,GM7303_BEEP		; BEEP DSKY SPEAKER
+	DEC	A
+	JP	Z,GM7303_DEVICE		; DEVICE INFO
+	DEC	A
+	JP	Z,GM7303_MESSAGE	; HANDLE MESSAGE
+	DEC	A
+	JP	Z,GM7303_EVENT		; HANDLE EVENT
+	SYSCHKERR(ERR_NOFUNC)
+	RET
+
+;
+; RESET 7303 -- CLEAR AND HOME LCD
+;
+GM7303_RESET:
+GM7303_CLEAR:
+	LD	A,GM7303_FUNC_CLEAR	; CLEAR SCREEN COMMAND
+	CALL	GM7303_COMMAND		; SEND IT 
+	JP	GM7303_CLEARDELAY	; LONG DELAY FOR CLEAR - RETURN HAPPENS IN STROBE ROUTINE
+;
+;  CHECK FOR KEY PRESS, SAVE RAW VALUE, RETURN STATUS
+;
+GM7303_STAT:
+	LD	A,(GM7303_KEYBUF)	; GET CURRENT BUF VAL
+	CP	$FF			; $FF MEANS WE ARE WAITING FOR PREV KEY TO BE RELEASED
+	JR	Z,GM7303_STAT1		; CHECK FOR PREV KEY RELEASE
+	OR	A			; DO WE HAVE A SCAN CODE BUFFERED ALREADY?
+	RET	NZ			; IF SO, WE ARE DONE
+	JR	GM7303_STAT2		; OTHERWISE, DO KEY CHECK
+	
+GM7303_STAT1:
+	; WAITING FOR PREVIOUS KEY RELEASE
+	CALL	GM7303_KEY		; SCAN
+	JR	Z,GM7303_STAT2		; IF ZERO, PREV KEY RELEASED, CONTINUE
+	XOR	A			; SIGNAL NO KEY PRESSED
+	RET				; AND DONE
+
+GM7303_STAT2:
+	CALL	GM7303_KEY		; SCAN
+	LD	(GM7303_KEYBUF),A	; SAVE RESULT
+	RET				; RETURN WITH ZF SET APPROPRIATELY
+;
+;
+; WAIT FOR A GM7303 KEYPRESS AND RETURN     
+;
+GM7303_GETKEY:
+	CALL	GM7303_STAT		; CHECK STATUS
+	JR	Z,GM7303_GETKEY		; LOOP IF NOTHING READY
+	LD	A,(GM7303_KEYBUF)
+	LD	B,24			; SIZE OF DECODE TABLE
+	LD	C,0			; INDEX
+	LD	HL,GM7303_KEYMAP	; POINT TO BEGINNING OF TABLE
+GM7303_GETKEY1:
+	CP	(HL)			; MATCH?
+	JR	Z,GM7303_GETKEY2	; FOUND, DONE
+	INC	HL
+	INC	C			; BUMP INDEX
+	DJNZ	GM7303_GETKEY1		; LOOP UNTIL EOT
+GM7303_GETKEY1A:
+	LD	A,$FF			; NOT FOUND ERR, RETURN $FF
+	RET
+GM7303_GETKEY2:
+	LD	A,$FF			; SET KEY BUF TO $FF
+	LD	(GM7303_KEYBUF),A	; DO IT
+	; RETURN THE INDEX POSITION WHERE THE SCAN CODE WAS FOUND
+	LD	E,C			; RETURN INDEX VALUE
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; DISPLAY HEX VALUE FROM DE:HL
+; To be written <--- DRJ
+
+GM7303_SHOWHEX:
+	RET
+	
+
+GM7303_DISP_2N_HEX:			;  DISPLAY N 2HEX VALUES FROM
+	CALL	GM7303_DISP_2HEX        ;  MEMORY ON 2N DISPLAYS 
+	DEC	C
+	JP	NZ,GM7303_DISP_2N_HEX
+	RET
+
+GM7303_DISP_2HEX:		;  DISPLAY 2 HEX CHARACTERS IN MEMORY LOCATIONS
+	LD	D,(HL)		;  (HL), IN DISPLAY POSITIONS (E),(E)+1
+	CALL	GM7303_DISP_HEX
+	INC	E
+	LD	A,(HL)
+	RRC	A
+	RRC	A
+	RRC	A
+	RRC	A
+	LD	D,A
+	CALL	GM7303_DISP_HEX
+	INC	E
+	INC	HL		;  (E)EXIT=(E)+2   (WAS INX H)
+	RET			;  (HL)EXIT=(HL)+1
+	
+GM7303_DISP_HEX:
+	LD	A,D		;  DISPLAY LEAST SIGNIFICANT HEX DIGIT IN REGISTER D
+	CALL	GM7303_HEX_ASC
+	LD	D,A
+	JP	GM7303_OUTD
+	
+GM7303_HEX_ASC:
+	AND	$0F		;  CONVERT LSD IN REG A TO ASCII
+	CP	$0A		;  IS A>9
+	JP	C,GM7303_NUM_TEST
+	ADD	A,$B7		;  YES - CONVERT TO C1-C6
+	RET			;  EXIT
+GM7303_NUM_TEST:	             
+	ADD	A,$B0		;  NO, CONVERT TO B0-B9
+	RET			;  EXIT	
+
+GM7303_SHOWSEG:
+	; CONVERT FROM SEG ALPHABET TO DISPLAY CODES
+	LD	B,8			; DO FOR ALL CHARS
+	LD	DE,GM7303_BUF		; DESTINATION BUFFER
+GM7303_SHOWSEG1:
+	LD	A,(HL)			; GET SOURCE VALUE
+	INC	HL			; BUMP FOR NEXT TIME
+	AND	$7F			; REMOVE HI BIT (DP)
+	PUSH	HL			; SAVE IT
+	LD	HL,GM7303_SEGMAP	; POINT TO XLAT MAP
+	CALL	ADDHLA			; OFFSET BY VALUE
+	LD	A,(HL)			; GET NEW VALUE
+	LD	(DE),A			; SAVE IT
+	INC	DE			; BUMP PTR
+	POP	HL			; RESTORE SOURCE PTR
+	DJNZ	GM7303_SHOWSEG1		; LOOP TILL DONE
+;	
+	; DISPLAY CONVERTED BUFFER
+	LD	HL,GM7303_BUF		; BUFFER
+	; FALL THRU
+
+
+GM7303_SHOWASCII:		; DISPLAY AN ASCII STRING ON THE GM7303 DISPLAY
+				; ENTER WITH HL- DATA TO PRINT (NULL TERMINATED)
+	PUSH	HL		; SAVE THE POINTER TO THE STRING
+	CALL	GM7303_CLEAR	; CLEAR THE DISPLAY
+	POP 	DE		; OUTDS EXPECTS STRING POINTER IN DE
+	CALL	GM7303_OUTDS
+	XOR	A		; RETURN SUCCESS	
+	RET
+;
+;
+;
+GM7303_KEYLEDS:
+GM7303_STATLED:
+GM7303_BEEP:
+	XOR	A			; UNSUPPORTED ROUTINES - PRETEND SUCCESS
+	RET
+;
+; DEVICE INFORMATION
+;
+GM7303_DEVICE:
+	LD	D,DSKYDEV_GM7303	; D := DEVICE TYPE
+	LD	E,0			; E := PHYSICAL DEVICE NUMBER
+	LD	H,0			; H := MODE
+	LD	L,GM7303BASE		; L := BASE I/O ADDRESS
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; MESSAGE HANDLER
+;
+GM7303_MESSAGE:
+	LD	A,C			; GET MESSAGE ID
+	ADD	A,A			; WORD OFFSET
+	LD	HL,GM7303_MSGTBL		; START OF MESSAGE TABLE
+	CALL	ADDHLA			; ADD OFFSET
+	LD	A,(HL)			; SAVE LSB
+	INC	HL			; BUMP TO MSB
+	LD	H,(HL)			; GET MSB
+	LD	L,A			; GET LSB
+	JR	GM7303_SHOWASCII	; SHOW MESSAGE AND RETURN
+;
+; EVENT HANDLER
+;
+GM7303_EVENT:
+	LD	A,C			; EVENT ID
+	OR	A			; 0=CPUSPD
+	JR	Z,GM7303_EVT_CPUSPD	; HANDLE CPU SPD CHANGE
+	DEC	A			; 1=DSKACT
+	JR	Z,GM7303_EVT_DSKACT	; HANDLE DISK ACTIVITY
+	XOR	A
+	RET
+;
+; CPU SPEED CHANGE
+;
+GM7303_EVT_CPUSPD:
+	XOR	A
+	RET
+;
+; DISK ACTIVITY
+;
+; CALLED FROM HBIOS RIGHT BEFORE A DISK ACCESS
+;
+; FORMAT: "Dsk99 R:12345678"
+;          0123456789012345
+;
+GM7303_EVT_DSKACT:
+;
+	PUSH	HL
+	LD	HL,$0100		; ROW 1, COL 0
+	CALL	GM7303_GOTORC		; SET DISPLAY ADDRESS
+	POP	HL
+;
+	LD	DE,GM7303_STR_IO	; PREFIX
+	CALL	GM7303_OUTDS		; SEND TO DISPLAY (COLS 0-5)
+
+	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
+	CALL	GM7303_DSKACT_BYTE	; SEND TO DISPLAY (COLS 6-7) HEX???
+;
+	LD	A,' '			; SEPARATOR
+	CALL	GM7303_OUTD		; SEND TO DISPLAY (COL 8)
+;
+	LD	A,(HB_DSKFUNC)		; ACTIVE DISK FUNCTION
+	CP	BF_DIOWRITE		; WRITE?
+	LD	A,'W'			; ASSUME WRITE
+	JR	Z,GM7303_DSKACT0	; GO AHEAD
+	LD	A,'R'			; OTHERWISE READ
+GM7303_DSKACT0:
+	CALL	GM7303_OUTD		; SEND CHAR (COL 10)
+
+	LD	A,':'			; SEPARATOR
+	CALL	GM7303_OUTD		; SEND TO DISPLAY (COL 11)
+;
+	LD	HL,HB_DSKADR+3		; INPUT POINTER
+	LD	B,4			; DO 4 BYTES
+;
+GM7303_DSKACT1:
+	LD	A,(HL)			; GET BYTE
+	CALL	GM7303_DSKACT_BYTE	; SEND TO DISPLAY (COLS 12-19)
+	DEC	HL			; DEC PTR
+	DJNZ	GM7303_DSKACT1		; DO ALL 4 BYTES
+;
+GM7303_DSKACT_Z:
+	RET
+;;
+GM7303_DSKACT_BYTE:
+	PUSH	AF			; SAVE BYTE
+	RRCA				; DO TOP NIBBLE FIRST
+	RRCA
+	RRCA
+	RRCA
+	CALL	HEXCONV		; CONVERT NIBBLE TO ASCII
+	CALL	GM7303_OUTD		; SEND TO DISPLAY
+	POP	AF			; RECOVER CURRENT BYTE
+	CALL	HEXCONV		; CONVERT NIBBLE TO ASCII
+	CALL	GM7303_OUTD		; SEND TO DISPLAY
+	RET				; DONE
+
+;
+;__GM7303_KEY___________________________________________________________________________________________
+;
+;  CHECK FOR KEY PRESS W/ DEBOUNCE
+;____________________________________________________________________________________________________
+;
+GM7303_KEY:
+	CALL	GM7303_SCAN		; INITIAL KEY PRESS SCAN
+	LD	E,A			; SAVE INITIAL SCAN VALUE
+GM7303_KEY1:
+	; MAX BOUNCE TIME FOR OMRON B3F IS 3MS
+	PUSH	DE			; SAVE DE
+	LD	DE,300			; ~3MS DELAY
+	CALL	VDELAY			; DO IT
+	CALL	GM7303_SCAN		; REPEAT SCAN
+	POP	DE			; RESTORE DE
+	RET	Z			; IF NOTHING PRESSED, DONE
+	CP	E			; SAME?
+	JR	GM7303_KEY2		; YES, READY TO RETURN
+	LD	E,A			; OTHERWISE, SAVE NEW SCAN VAL
+	JR	GM7303_KEY1		; AND LOOP UNTIL STABLE VALUE
+GM7303_KEY2:
+	OR	A			; SET FLAGS BASED ON VALUE
+	RET				; AND DONE
+;
+;__GM7303_SCAN__________________________________________________________________________________________
+;
+;  SCAN KEYPAD AND RETURN RAW SCAN CODE (RETURNS ZERO IF NO KEY PRESSED)
+;____________________________________________________________________________________________________
+;
+GM7303_SCAN:   
+	LD	B,4			; 4 COLUMNS
+	LD	C,$01			; FIRST COLUMN
+	LD	E,0			; INITIAL COL ID
+GM7303_SCAN1:
+	LD	A,C			; COL TO A
+	AND	$0F			; DON'T CHANGE THE LCD CONTROL BITS
+	OUT	(GM7303_KYBD),A		; ACTIVATE COL
+	IN	A,(GM7303_KYBD)		; READ ROW BITS
+	AND	$3F			; MASK, WE ONLY HAVE 6 ROWS, 
+					;   OTHERS USED FOR STATUS SWITCHES
+	JR	NZ,GM7303_SCAN2		; IF NOT ZERO, GOT SOMETHING
+	RLC	C			; NEXT COL
+	INC	E			; BUMP COL ID
+	DJNZ	GM7303_SCAN1		; LOOP THROUGH ALL COLS
+	XOR	A			; NOTHING FOUND, RETURN ZERO
+	RET
+GM7303_SCAN2:
+	RRC	E			; MOVE COL ID
+	RRC	E			; ... TO HIGH BITS 6 & 7
+	OR	E			; COMBINE WITH ROW
+	RET
+	
+;
+;_ _TABLE_____________________________________________________________________________________________________________
+;
+GM7303_KEYMAP:
+	; POS	$00  $01  $02  $03  $04  $05  $06  $07
+	; KEY   [0]  [1]  [2]  [3]  [4]  [5]  [6]  [7]
+	.DB	$01, $41, $81, $C1, $02, $42, $82, $C2
+;                                                  
+	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
+	; KEY   [8]  [9]  [A]  [B]  [C]  [D]  [E]  [F]
+	.DB	$04, $44, $84, $C4, $08, $48, $88, $C8
+;                                                  
+	; POS	$10  $11  $12  $13  $14  $15  $16  $17
+	; KEY   [FW] [BK] [CL] [EN] [DE] [EX] [GO] [BO]
+	.DB	$10, $50, $90, $D0, $20, $60, $A0, $E0
+	
+
+
+; DETECT PRESENCE OF GM7303 CONTROLLER 
+; WE CAN'T USE CONTROLLER RAM AS THE GM7303 DOES NOT SUPPORT LCD READS
+; SIMPLY TEST FOR THE EXISTANCE OF BUS PULLDOWN AT THE SWITCH PORT
+;
+GM7303_DETECT:
+	IN	A,(GM7303_DATA)	; GET VALUE OF DATA INPUTS 
+	CP	00			; GM7303 PULLS DATA TO GROUND
+	JR	Z,GM7303_AVAILABLE
+GM7303_MISSING:
+	LD	A,00
+	LD	(GM7303_PRESENT),A
+	RET
+GM7303_AVAILABLE:
+	LD	A,$FF
+	LD	(GM7303_PRESENT),A
+	RET
+;
+; DELAY ROUTINE - SHORT
+;
+GM7303_DELAY:
+	PUSH	AF
+	PUSH	DE
+	LD	DE,3	; WAIT PERIOD
+	CALL	VDELAY	; DO IT
+	POP	DE
+	POP	AF
+	RET	
+;
+; CLEAR DELAY ROUTINE - LONG
+;
+GM7303_CLEARDELAY:
+	PUSH	AF
+	PUSH	DE
+	LD	DE,140	; WAIT PERIOD
+	CALL	VDELAY	; DO IT
+	POP	DE
+	POP	AF
+	RET	
+
+	
+CMD_STROBE:		;  Send a command to the LCD
+	LD	A,01H	;  (A) = (X,X,X,X,X,RS,R/W*, E)
+			;  SET R/W* LINE low (BIT 1=0)
+			;  SET RS line LOW FOR COMMAND (BIT 2=0)
+			;  SET ENABLE LINE HIGH (BIT 0=1)
+	; CARRY ON THROUGH THE STROBE ROUTINE
+STROBE:
+	OR	01H             ;  SET ENABLE LINE HIGH (BIT 0=1)
+	OUT 	(GM7303_CTRL),A
+	CALL	GM7303_DELAY
+	
+	XOR	01H             ;  SET ENABLE LINE LOW (BIT 0=0)
+	OUT 	(GM7303_CTRL),A
+	CALL	GM7303_DELAY
+	RET                   ;  EXIT
+								   
+GM7303_OUTD:			; OUTPUT ASCII CHARACTER TO LCD DISPLAY
+				; CHAR IN A
+	AND	07FH
+	OUT 	(GM7303_DATA),A	; OUTPUT TO THE DATA PORT
+				;    AND STROBE IT IN
+DATA_STROBE:
+	LD	A,04H		; SET R/W* LINE low (BIT 1=0)
+				; SET RS line HIGH FOR DATA (BIT 2=1)
+				; (A) = (X,X,X,X,X,RS,R/W*, E)
+	JP	STROBE		; DO THE STROBE  
+				; RETURN THROUGH THE STROBE ROUTINE
+	
+GM7303_COMMAND:			; OUTPUT COMMAND TO 7303 MODULE LCD
+	OUT	(GM7303_DATA),A	; WRITE TO TO DISPLAY
+	JP	CMD_STROBE	; COMMAND STROBE (STROBE ROUTING LETS US RETURN)
+	
+; SEND DATA STRING
+; DE=STRING ADDRESS, NULL TERMINATED
+;
+GM7303_OUTDS:
+	LD	A,(DE)		; NEXT BYTE TO SEND
+	OR	A		; SET FLAGS
+	RET	Z		; DONE WHEN NULL REACHED
+	INC	DE		; BUMP POINTER
+	CALL	GM7303_OUTD	; SEND IT
+	JR	GM7303_OUTDS	; LOOP AS NEEDED
+;
+; GOTO ROW(H),COL(L)
+;
+GM7303_GOTORC:
+	PUSH	HL			; SAVE INCOMING
+	LD	A,H			; ROW # TO A
+	LD	HL,GM7303_ROWS		; POINT TO ROWS TABLE
+	CALL	ADDHLA			; INDEX TO ROW ENTRY
+	LD	A,(HL)			; GET ROW START
+	POP	HL			; RECOVER INCOMING
+	ADD	A,L			; ADD COLUMN
+	ADD	A,GM7303_FUNC_DDADR	; ADD SET DDRAM COMMAND
+	JR	GM7303_COMMAND		; AND SEND IT
+;
+
+; 		LCD CONTROLLER MANUAL RESET METHOD
+;
+GM7303_RESETLCD:
+	LD	A,GM7303_FUNC_SET | %11000    ;   8 BIT INTERFACE, COMMAND MODE, 2 LINES
+	OUT	(GM7303_DATA),A
+	LD	A,01            ;  SET ENABLE LINE HIGH (BIT 0=1)
+	OUT 	(GM7303_CTRL),A
+	LD	DE,5000/16	; WAIT >40MS, WE USE 50MS
+	CALL	VDELAY		; DO IT
+	LD	A,00            ;  SET ENABLE LINE LOW (BIT 0=0)
+	OUT 	(GM7303_CTRL),A
+
+	LD	A,01            ;  SET ENABLE LINE HIGH (BIT 0=1)
+	OUT 	(GM7303_CTRL),A
+	LD	DE,500/16	; WAIT >4MS, WE USE 5MS
+	CALL	VDELAY		; DO IT
+	LD	A,00            ;  SET ENABLE LINE LOW (BIT 0=0)
+	OUT 	(GM7303_CTRL),A
+
+	LD	A,01            ;  SET ENABLE LINE HIGH (BIT 0=1)
+	OUT 	(GM7303_CTRL),A
+	LD	DE,500/16	; WAIT >4MS, WE USE 5MS
+	CALL	VDELAY		; DO IT
+	LD	A,00            ;  SET ENABLE LINE LOW (BIT 0=0)
+	OUT 	(GM7303_CTRL),A
+	RET
+
+;
+; DATA STORAGE
+;
+GM7303_PRESENT	.DB	0	; NON-ZERO WHEN HARDWARE DETECTED
+;
+GM7303_BUF	.FILL	8	; USED BY SHOWSEG
+		.DB	0	; NULL TERMINATOR FOR ABOVE
+;
+; KBD WORKING STORAGE
+;
+GM7303_KEYBUF	.DB	0
+;
+;
+GM7303_ROWS	.DB	$00,$40	; ROW START INDEX FOR 2 LINE DISPLAY
+;
+GM7303_INIT_TBL:	; TABLE OF INITIALISATION COMMANDS FOR THE LCD
+	.DB 38H	;   8 BIT OPERATION, 2 LINE DISPLAY, 8X5 FONT
+	.DB 0EH	;   TURN ON DISPLAY, CURSOR AND BLINK
+	.DB 06H	;   SET CURSOR MOVE FROM LEFT TO RIGHT
+	.DB 01H	;   CLEAR DISPLAY
+;
+GM7303_STR_BAN	.DB	"RomWBW ", BIOSVER, 0
+GM7303_STR_CFG	.DB	"Build:", CONFIG, 0
+GM7303_STR_IO	.DB	"Dsk", 0
+;
+GM7303_SEGMAP:
+;
+	; POS	$00  $01  $02  $03  $04  $05  $06  $07
+	; GLYPH '0'  '1'  '2'  '3'  '4'  '5'  '6'  '7'
+	.DB	"01234567"
+;
+	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
+	; GLYPH	'8'  '9'  'A'  'B'  'C'  'D'  'E'  'F'
+	.DB	"89ABCDEF"
+;
+	; POS	$10  $11  $12  $13  $14  $15  $16  $17  $18  $19  $1A
+	; GLYPH	' '  '-'  '.'  'P'  'o'  'r'  't'  'A'  'd'  'r'  'G'
+	.DB	" -.PortAdrG"
+;
+GM7303_MSGTBL:
+	.DW	GM7303_MSG_LDR_SEL
+	.DW	GM7303_MSG_LDR_BOOT
+	.DW	GM7303_MSG_LDR_LOAD
+	.DW	GM7303_MSG_LDR_GO
+	.DW	GM7303_MSG_MON_RDY
+	.DW	GM7303_MSG_MON_BOOT
+;
+GM7303_MSG_LDR_SEL	.DB	"Ready",0
+GM7303_MSG_LDR_BOOT	.DB	"Boot...",0
+GM7303_MSG_LDR_LOAD	.DB	"Load...",0
+GM7303_MSG_LDR_GO	.DB	"Go...",0
+GM7303_MSG_MON_RDY	.DB	"-CPU UP-",0
+GM7303_MSG_MON_BOOT	.DB	"Boot!",0
diff --git a/Source/HBIOS/h8p.asm b/Source/HBIOS/h8p.asm
index 234283f5..0996b5b3 100644
--- a/Source/HBIOS/h8p.asm
+++ b/Source/HBIOS/h8p.asm
@@ -12,8 +12,31 @@
 ;	+--10--+  80
 ;
 ;
-	DEVECHO	"H8P: IO=??"
-	;DEVECHO	0
+H8PKEYNONE	.EQU	$FF		; NONE
+H8PKEY0		.EQU	$FE
+H8PKEY1		.EQU	$FC
+H8PKEY2		.EQU	$FA
+H8PKEY3		.EQU	$F8
+H8PKEY4		.EQU	$F6
+H8PKEY5		.EQU	$F4
+H8PKEY6		.EQU	$F2
+H8PKEY7		.EQU	$F0
+H8PKEY8		.EQU	$EF
+H8PKEY9		.EQU	$CF
+H8PKEYPLUS	.EQU	$AF		; PLUS
+H8PKEYMINUS	.EQU	$8F		; MINUS
+H8PKEYMUL	.EQU	$6F		; MULTIPLY
+H8PKEYDIV	.EQU	$4F		; DIVIDE
+H8PKEYNUM	.EQU	$2F		; NUMBER
+H8PKEYDOT	.EQU	$0F		; DOT
+;
+H8P_TICCNT	.EQU	$FFEA		; TICCNT AT $FFEA IS COPIED DOWN TO $000B FOR HEATH COMPATIBILITY
+H8P_SPEED	.EQU	$FFEC		; SPEED CONTROL VALUE IS STORED HERE
+H8P_SPDIO	.EQU	$30
+H8FPIO		.EQU	$F0
+;
+	DEVECHO	"H8P: IO="
+	DEVECHO	H8FPIO
 	DEVECHO	"\n"
 ;
 ;__H8P_PREINIT_______________________________________________________________________________________
@@ -24,144 +47,928 @@
 ; HARDWARE RESET PRIOR TO ROMWBW CONSOLE INITIALIZATION
 ;
 H8P_PREINIT:
-	LD	A,(DSKY_DISPACT)	; DSKY DISPATCHER ALREADY SET?
-	OR	A			; SET FLAGS
-	RET	NZ			; IF ALREADY ACTIVE, ABORT
-;
-	; REGISTER DRIVER WITH HBIOS
-	LD	BC,H8P_DISPATCH
-	CALL	DSKY_SETDISP
+	; HEATH H8 PLATFORM IMPLEMENTS A CPU SPEED DIVISOR AS SET BY THE
+	; 2 LS BITS OF PORT H8PSPDIO.  THE OSCILLATOR IS NORMALLY 16MHZ.
+	; 0=FULL (16MHZ), 1=1/2 (8MHZ), 2=1/4 (4 MHZ), 3=1/8 (2 MHZ)
+	; FOR BOOT, WE SET THE DIVISOR TO HALF (8MHZ)WHICH IS THE FASTEST
+	; SPEED WE CAN USE THAT STILL ENSURES ALL HARDWARE CAN BE DETECTED.
+	; E.G., MSX BOARD MAXES OUT AT 8MHZ.
+	LD	A,$01			; 8 MHZ OPERATION
+	OUT	(H8P_SPDIO),A		; IMPLEMENT IT
+	LD	(H8P_SPEED),A		; UPDATE FP SHADOW
+;
+	; HOOK INTERRUTPS FOR FRONT PANEL OPERATION
+	LD	HL,H8P_INTR
+	CALL	HB_ADDIM1
 ;
 	RET
 ;
 ;__H8P_INIT__________________________________________________________________________________________
 ;
-;  DISPLAY DSKY INFO ON ROMWBW CONSOLE
+;  DISPLAY H8 FRONT PANEL INFO ON ROMWBW CONSOLE
 ;____________________________________________________________________________________________________
 ;
 H8P_INIT:
 	CALL	NEWLINE			; FORMATTING
-	PRTS("H8P:$")			; DRIVER TAG
+	PRTS("H8FP:$")			; FORMATTING
+;
+	PRTS(" IO=0x$")			; FORMATTING
+	LD	A,H8FPIO		; GET BASE PORT
+	CALL	PRTHEXBYTE		; PRINT BASE PORT
 ;
 	RET				; DONE
 ;
-; DSKY DEVICE FUNCTION DISPATCH ENTRY
-;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
-;   B: FUNCTION (IN)
-;
-H8P_DISPATCH:
-	LD	A,B			; GET REQUESTED FUNCTION
-	AND	$0F			; ISOLATE SUB-FUNCTION
-	JP	Z,H8P_RESET		; RESET DSKY HARDWARE
-	DEC	A	
-	JP	Z,H8P_STAT		; GET KEYPAD STATUS
-	DEC	A	
-	JP	Z,H8P_GETKEY		; READ A KEY FROM THE KEYPAD
-	DEC	A	
-	JP	Z,H8P_SHOWHEX		; DISPLAY A 32-BIT BINARY VALUE IN HEX
-	DEC	A	
-	JP	Z,H8P_SHOWSEG		; DISPLAY SEGMENTS
-	DEC	A	
-	JP	Z,H8P_KEYLEDS		; SET KEYPAD LEDS
-	DEC	A	
-	JP	Z,H8P_STATLED		; SET STATUS LED
-	DEC	A	
-	JP	Z,H8P_BEEP		; BEEP DSKY SPEAKER
-	DEC	A
-	JP	Z,H8P_DEVICE		; DEVICE INFO
-	SYSCHKERR(ERR_NOFUNC)
-	RET
-;
-; RESET DSKY -- CLEAR DISPLAY AND KEYPAD FIFO
-;
-H8P_RESET:
-	XOR	A			; SIGNAL SUCCESS
+; H8 FRONT PANEL INTERRUPT
+;
+H8P_INTR:
+	LD	(H8P_BCVAL),BC
+	LD	(H8P_DEVAL),DE
+	LD	(H8P_HLVAL),HL
+	LD	HL,(H8P_TICCNT)		; 2MS TIC COUNTER
+	INC	HL
+	LD	(H8P_TICCNT),HL
+	CALL	H8P_TIMER		; UP TIMER
+	CALL	H8P_STAT		; CHECK KEYPAD PRESS
+	CALL	H8P_GETSEGIDX		; SEGMENT INDEX IN (C)
+	CALL	H8P_HORN
+	OR	C
+	OUT	(H8FPIO),A		; CLEAR INTERRUPT AND SET LED IDX
+	LD	C,A
+	LD	A,(H8P_FPENA)
+	OR	A
+	LD	A,$FF
+	CALL	NZ,H8P_GETSEGPAT
+	OUT	(H8FPIO+1),A		; SET LED PATTERN
+;
+	CALL	H8P_KEYPAD
+	LD	A,(H8P_STTIMER)
+	INC	A
+	AND	$1F			; UPDATE LEDS EVERY 32 TICKS
+	LD	(H8P_STTIMER),A
+	CALL	Z,H8P_HDLSTATE
+	LD	A,(H8P_HBTICK)		; ROMWBW TIMER
+	INC	A
+	LD	(H8P_HBTICK),A
+	CP	10
+	RET	NZ
+	CALL	HB_TICK
+	XOR	A
+	LD	(H8P_HBTICK),A
+	INC	A			; INTERRUPT HANDLED
+	RET
+;
+; HANDLE FRONT PANEL SPEAKER SOUNDS
+;
+H8P_HORN:
+	LD	HL,(H8P_HORNDUR)
+	LD	A,H
+	OR	L
+	LD	A,$D0			; HORN OFF
+	RET	Z
+	DEC	HL
+	LD	(H8P_HORNDUR),HL
+	LD	A,$50			; HORN ON
+	RET
+;
+; HANDLE UP-TIME TIMER
+;
+H8P_TIMER:
+	LD	HL,(H8P_ONESEC)
+	DEC	HL
+	LD	(H8P_ONESEC),HL
+	LD	A,H
+	OR	L
+	RET	NZ
+	LD	HL,(H8P_UPTIME)
+	INC	HL
+	LD	(H8P_UPTIME),HL
+	LD	HL,500
+	LD	(H8P_ONESEC),HL
+	CALL	H8P_TIMER1
+	LD	A,(H8P_STATE)
+	OR	A
+	CALL	Z,H8P_TIMER2
+	RET
+; ADVANCE DIGITS
+H8P_TIMER1:
+	LD	C,9
+	LD	HL,H8P_UPTDIG+8
+	CALL	H8P_ADVDIG
+	RET
+; SHOW DIGITS
+H8P_TIMER2:
+	LD	DE,H8P_UPTDIG+8
+	LD	HL,H8P_SEGBUF+8
+	LD	C,9
+H8P_TIMER3:
+	PUSH	BC
+	PUSH	HL
+	LD	A,C
+	CP	7
+	JR	Z,H8P_TIMER4
+	CP	4
+	JR	Z,H8P_TIMER4
+	JR	H8P_TIMER5
+H8P_TIMER4:
+	LD	A,$80
+	JR	H8P_TIMER6
+H8P_TIMER5:
+	LD	HL,H8P_DIGMAP
+	LD	A,(DE)
+	LD	C,A
+	LD	B,0
+	ADD	HL,BC
+	LD	A,(HL)
+H8P_TIMER6:
+	POP	HL
+	LD	(HL),A
+	DEC	HL
+	DEC	DE
+	POP	BC
+	DEC	C
+	JR	NZ,H8P_TIMER3
+	RET
+H8P_ADVDIG:
+	LD	A,(HL)			; 000.000.00X
+	INC	A
+	LD	(HL),A
+	CP	10			; 0-9
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	LD	A,(HL)			; 000.000.0X0
+	INC	A
+	LD	(HL),A
+	CP	6			; 0-5
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	DEC	HL
+	LD	A,(HL)			; 000.00X.000
+	INC	A
+	LD	(HL),A
+	CP	10			; 0-9
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	LD	A,(HL)			; 000.0X0.000
+	INC	A
+	LD	(HL),A
+	CP	6			; 0-5
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	DEC	HL
+	LD	A,(HL)			; 00X.000.000
+	INC	A
+	LD	(HL),A
+	CP	10			; 0-9
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	LD	A,(HL)			; 0X0.000.000
+	INC	A
+	LD	(HL),A
+	CP	10			; 0-9
+	RET	NZ
+	LD	(HL),0
+	DEC	HL
+	LD	A,(HL)			; X00.000.000
+	INC	A
+	LD	(HL),A
+	CP	10			; 0-9
+	RET	NZ
+	LD	(HL),0
 	RET
 ;
-;  CHECK FOR KEY PRESS, SAVE RAW VALUE, RETURN STATUS
+;  CHECK FOR KEY PRESS, SAVE RAW VALUE
 ;
 H8P_STAT:
-	XOR	A			; ZERO KEYS PENDING (FOR NOW)
+	IN	A,(H8FPIO)
+	LD	(H8P_KEYBUF),A
 	RET
 ;
-;  WAIT FOR A DSKY KEYPRESS AND RETURN
+;  GET KEY AND RESET KEYBUF
 ;
 H8P_GETKEY:
-	; PUT KEY VALUE IN REGISTER E
-	XOR	A			; SIGNAL SUCCESS	
+	LD	A,(H8P_KEYBUF)
 	RET
 ;
-; DISPLAY HEX VALUE FROM DE:HL
+H8P_KEYPAD:
+	CALL	H8P_GETKEY
+	LD	C,A
+	LD	A,(H8P_LSTKEY)
+	CP	C
+	RET	Z
+	LD	A,C
+	LD	(H8P_LSTKEY),A
+	CP	H8PKEYNONE
+	RET	Z
+	LD	HL,$04
+	LD	(H8P_HORNDUR),HL
+	CP	H8PKEYDIV		; / KEY (ALTER)
+	JP	Z,H8P_KEYPADALT
+	CP	H8PKEYMUL		; * KEY (CANCEL)
+	JP	Z,H8P_KEYPADCAN
+	CP	H8PKEYNUM		; MEM KEY
+	JP	Z,H8P_KEYPADMEM
+	CP	H8PKEYDOT		; REG KEY
+	JP	Z,H8P_KEYPADREG
+	CP	H8PKEY9
+	JP	Z,H8P_KEYPAD9
+	CP	H8PKEY8
+	JP	Z,H8P_KEYPAD8
+	CP	H8PKEY7
+	JP	Z,H8P_KEYPAD7
+	CP	H8PKEY6
+	JP	Z,H8P_KEYPAD6
+	CP	H8PKEY5
+	JP	Z,H8P_KEYPAD5
+	CP	H8PKEY4
+	JP	Z,H8P_KEYPAD4
+	CP	H8PKEY3
+	JP	Z,H8P_KEYPAD3
+	CP	H8PKEY2
+	JP	Z,H8P_KEYPAD2
+	CP	H8PKEY1
+	JP	Z,H8P_KEYPAD1
+	CP	H8PKEY0
+	JP	Z,H8P_KEYPAD0
+	CP	H8PKEYPLUS
+	JP	Z,H8P_KEYPADPLUS
+	CP	H8PKEYMINUS
+	JP	Z,H8P_KEYPADMINUS
+	RET
+; RESET TIMER
+H8P_KEYPADALT:
+	LD	A,(H8P_FPENA)
+	OR	A
+	RET	Z
+	LD	A,(H8P_STATE)
+	OR	A
+	RET	NZ
+	XOR	A
+	LD	C,9
+	LD	HL,H8P_UPTDIG
+H8P_KEYPADALTL:
+	LD	(HL),A
+	INC	HL
+	DEC	C
+	JR	NZ,H8P_KEYPADALTL
+	RET
+; ENABLE FRONT PANEL DISPLAY
+H8P_KEYPADCAN:
+	LD	A,(H8P_FPENA)
+	CPL
+	LD	(H8P_FPENA),A
+	RET
+; SET MEM STATE
+H8P_KEYPADMEM:
+	LD	A,2
+	LD	(H8P_STATE),A
+	LD	(H8P_MEMENTER),A
+	XOR	A
+	LD	(H8P_MEMADRIDX),A
+	CALL	H8P_UPDMEMLOC
+	RET
+; SET REG STATE
+H8P_KEYPADREG:
+	LD	A,1
+	LD	(H8P_STATE),A
+	XOR	A
+	LD	(H8P_MEMENTER),A
+	RET
+; NOTHING
+H8P_KEYPAD9:
+;	RET
+; TIMER
+H8P_KEYPAD8:
+	LD	A,(H8P_STATE)
+	CP	2
+	RET	Z
+	LD	A,0
+	LD	(H8P_STATE),A
+	RET
+; SPEED CONTROL
+H8P_KEYPAD7:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,7
+	JP	Z,H8P_KEYPADDIG
+	LD	A,3
+	LD	(H8P_STATE),A
+	RET
+; PC (OUT)
+H8P_KEYPAD6:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,6
+	JP	Z,H8P_KEYPADDIG
+	LD	A,5
+	LD	(H8P_REGNUM),A
+	RET
+; HL (IN)
+H8P_KEYPAD5:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,5
+	JP	Z,H8P_KEYPADDIG
+	LD	A,3
+	LD	(H8P_REGNUM),A
+	RET
+; DE
+H8P_KEYPAD4:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,4
+	JP	Z,H8P_KEYPADDIG
+	LD	A,2
+	LD	(H8P_REGNUM),A
+	RET
+; BC
+H8P_KEYPAD3:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,3
+	JP	Z,H8P_KEYPADDIG
+	LD	A,1
+	LD	(H8P_REGNUM),A
+	RET
+; AF
+H8P_KEYPAD2:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,2
+	JP	Z,H8P_KEYPADDIG
+	LD	A,0
+	LD	(H8P_REGNUM),A
+	RET
+; SP
+H8P_KEYPAD1:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	LD	A,1
+	JP	Z,H8P_KEYPADDIG
+	LD	A,4
+	LD	(H8P_REGNUM),A
+	RET
+; NOTHING
+H8P_KEYPAD0:
+	LD	A,(H8P_STATE)
+	CP	2			; MEM MODE
+	JP	NZ,H8P_KEYPAD8
+	LD	A,0
+;
+H8P_KEYPADDIG:
+	LD	C,A
+	LD	A,(H8P_MEMENTER)
+	OR	A
+	JR	Z,H8P_KEYPADDIG1
+	LD	A,(H8P_MEMADRIDX)
+	OR	A
+	CALL	Z,H8P_SETDIG0
+	DEC	A
+	CALL	Z,H8P_SETDIG1
+	DEC	A
+	CALL	Z,H8P_SETDIG2
+	DEC	A
+	CALL	Z,H8P_SETDIG3
+	DEC	A
+	CALL	Z,H8P_SETDIG4
+	DEC	A
+	CALL	Z,H8P_SETDIG5
+	CALL	H8P_UPDMEMLOC
+; NEXT MEMORY ADR INDEX
+	LD	A,(H8P_MEMADRIDX)
+	INC	A
+	LD	(H8P_MEMADRIDX),A
+	CP	6
+	RET	NZ
+	XOR	A
+	LD	(H8P_MEMADRIDX),A
+	RET
+; CHECK FOR IN/OUT TO PORT
+H8P_KEYPADDIG1:
+	LD	A,C
+	CP	5			; IN PORT
+	JR	Z,H8P_KEYPADINP
+	CP	6			; OUT PORT
+	JR	Z,H8P_KEYPADOUT
+	RET
+H8P_KEYPADINP:
+	LD	BC,(H8P_MEMLOC)
+	IN	A,(C)
+	LD	B,A
+	LD	(H8P_MEMLOC),BC
+	JP	H8P_UPDMEMLOC
+H8P_KEYPADOUT:
+	LD	BC,(H8P_MEMLOC)
+	LD	A,B
+	OUT	(C),A
+	RET
+H8P_UPDMEMLOC:
+	LD	BC,H8P_MEMLOC
+	LD	HL,H8P_SEGBUF
+	CALL	H8P_FILLOCT
+	RET
+; C=VAL
+H8P_SETDIG0:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,H
+	CALL	H8P_SETOCTH
+	LD	H,A
+	LD	(H8P_MEMLOC),HL
+	LD	A,$FF
+	RET
+H8P_SETDIG1:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,H
+	CALL	H8P_SETOCTM
+	LD	H,A
+	LD	(H8P_MEMLOC),HL
+	LD	A,$FF
+	RET
+H8P_SETDIG2:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,H
+	CALL	H8P_SETOCTL
+	LD	H,A
+	LD	(H8P_MEMLOC),HL
+	LD	A,$FF
+	RET
+H8P_SETDIG3:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,L
+	CALL	H8P_SETOCTH
+	LD	L,A
+	LD	(H8P_MEMLOC),HL
+	LD	A,$FF
+	RET
+H8P_SETDIG4:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,L
+	CALL	H8P_SETOCTM
+	LD	L,A
+	LD	(H8P_MEMLOC),HL
+	LD	A,$FF
+	RET
+H8P_SETDIG5:
+	LD	HL,(H8P_MEMLOC)
+	LD	B,L
+	CALL	H8P_SETOCTL
+	LD	L,A
+	LD	(H8P_MEMLOC),HL
+	XOR	A
+	LD	(H8P_MEMENTER),A
+	LD	A,$FF
+	RET
+H8P_SETDIGD:
+	LD	A,(H8P_MEMVAL)
+	PUSH	AF
+	CALL	H8P_GETOCTH
+	LD	(H8P_SEGBUF+6),A
+	POP	AF
+	PUSH	AF
+	CALL	H8P_GETOCTM
+	LD	(H8P_SEGBUF+7),A
+	POP	AF
+	CALL	H8P_GETOCTL
+	LD	(H8P_SEGBUF+8),A
+	RET
+; MEM/SPEED INCREASE
+H8P_KEYPADPLUS:
+	LD	A,(H8P_STATE)
+	CP	3
+	JR	Z,H8P_KEYPADPLUS3
+	CP	2
+	RET	NZ
+	LD	HL,(H8P_MEMLOC)
+	INC	HL
+	LD	(H8P_MEMLOC),HL
+	JP	H8P_UPDMEMLOC
+H8P_KEYPADPLUS3:
+	LD	A,(H8P_SPEED)
+	OR	A
+	RET	Z
+	DEC	A
+	;;;LD	(H8P_SPEED),A
+	;;;OUT	(H8P_SPDIO),A
+	;;;RET
+	; EXIT VIA HBIOS SPEED CHANGE, W/ L=NEW SPEED
+	JP	H8P_SETSPD		; SEE HBIOS.ASM
+; MEM/SPEED DECREASE
+H8P_KEYPADMINUS:
+	LD	A,(H8P_STATE)
+	CP	3
+	JR	Z,H8P_KEYPADMINUS3
+	CP	2
+	RET	NZ
+	LD	HL,(H8P_MEMLOC)
+	DEC	HL
+	LD	(H8P_MEMLOC),HL
+	JP	H8P_UPDMEMLOC
+H8P_KEYPADMINUS3:
+	LD	A,(H8P_SPEED)
+	CP	3
+	RET	Z
+	INC	A
+	;;;LD	(H8P_SPEED),A
+	;;;OUT	(H8P_SPDIO),A
+	;;;RET
+	; EXIT VIA HBIOS H8P SPEED CHANGE, W/ A=NEW SPEED
+	JP	H8P_SETSPD		; SEE HBIOS.ASM
+;
+; HANDLE FRONT PANEL STATE
+;
+H8P_HDLSTATE:
+	LD	A,(H8P_STATE)
+	OR	A
+	RET	Z			; UP-TIME TIMER
+	DEC	A
+	JP	Z,H8P_HDLREG		; SHOWING REGISTER VALUES
+	DEC	A
+	JP	Z,H8P_HDLMEM		; SHOWING MEMORY LOCATION VALUE
+	DEC	A
+	JP	Z,H8P_HDLSPD		; MODIFYING SPEED
+	RET
 ;
-H8P_SHOWHEX:
-	LD	BC,DSKY_HEXBUF		; POINT TO HEX BUFFER
-	CALL	ST32			; STORE 32-BIT BINARY THERE
-	LD	HL,DSKY_HEXBUF		; FROM: BINARY VALUE (HL)
-	LD	DE,DSKY_BUF		; TO: SEGMENT BUFFER (DE)
-	CALL	DSKY_BIN2SEG		; CONVERT
-	LD	HL,DSKY_BUF		; POINT TO SEGMENT BUFFER
-	; AND FALL THRU TO DISPLAY IT
+H8P_HDLREG:
+	LD	A,(H8P_REGNUM)
+	LD	HL,H8P_REGAF
+	OR	A
+	JP	Z,H8P_HDLREGAF
+	DEC	A
+	LD	HL,H8P_REGBC
+	JP	Z,H8P_HDLREGBC
+	DEC	A
+	LD	HL,H8P_REGDE
+	JP	Z,H8P_HDLREGDE
+	DEC	A
+	LD	HL,H8P_REGHL
+	JP	Z,H8P_HDLREGHL
+	DEC	A
+	LD	HL,H8P_REGSP
+	JP	Z,H8P_HDLREGSP
+	DEC	A
+	LD	HL,H8P_REGPC
+	JP	Z,H8P_HDLREGPC
+	RET
+H8P_HDLREGAF:
+	CALL	H8P_UPDLEDS
+	LD	HL,HBX_INTSTK
+	DEC	HL
+	LD	A,(HL)			; (HL)=AF LOW
+	LD	(H8P_AFVAL),A
+	DEC	HL
+	LD	A,(HL)			; (HL)=AF HIGH
+	LD	(H8P_AFVAL+1),A
+	LD	BC,H8P_AFVAL
+	LD	HL,H8P_SEGBUF
+	JP	H8P_FILLOCT
+H8P_HDLREGBC:
+	LD	BC,H8P_BCVAL
+	CALL	H8P_FILLOCT
+	JP	H8P_UPDLEDS
+H8P_HDLREGDE:
+	LD	BC,H8P_DEVAL
+	CALL	H8P_FILLOCT
+	JP	H8P_UPDLEDS
+H8P_HDLREGHL:
+	CALL	H8P_UPDLEDS
+;
+	;;;LD	HL,(HBX_INT_SP)
+	;;;LD	A,(HL)
+	;;;LD	(H8P_HLVAL),A
+	;;;INC	HL
+	;;;LD	A,(HL)
+	;;;LD	(H8P_HLVAL+1),A
+;
+	LD	A,(HB_CURBNK)		; GET PRE-INT BANK
+	LD	D,A			; PUT IN D
+;
+	; HORRIBLE HACK TO MAKE PEEK RETURN TO OUR BANK!!!
+	PUSH	AF			; SAVE ORIG HB_CURBNK
+	LD	A,BID_BIOS		; MAKE IT OUR BANK
+	LD	(HB_CURBNK),A		; OVERRIDE FOR PEEK
+;
+	; FOLLOW STACK TO GET PC, USE PEEK IN CASE STACK IN ALT BANK
+	LD	HL,(HBX_INT_SP)		; PRE-INT SP HAS HL AT TOS
+	CALL	HBX_PEEK		; GET LSB TO E
+	LD	C,E			; PUT IN C
+	INC	HL			; POINT TO MSB
+	CALL	HBX_PEEK		; GET MSB TO E
+	LD	B,E			; PUT IN B
+	LD	(H8P_HLVAL),BC		; SAVE FOR DISPLAY
+;
+	; UNDO HACK!!!
+	POP	AF			; RECOVER HB_CURBNK
+	LD	(HB_CURBNK),A		; SAVE RESTORE IT
+;
+	LD	BC,H8P_HLVAL
+	LD	HL,H8P_SEGBUF
+	JP	H8P_FILLOCT
+H8P_HDLREGSP:
+	CALL	H8P_UPDLEDS
+	LD	HL,(HBX_INT_SP)		; GET INT SAVED SP
+	INC	HL			; BUMP TO VAL
+	INC	HL			; ... OF SP
+	INC	HL			; ... AT TIME
+	INC	HL			; ... OF INTERRUPT
+	LD	(H8P_SPVAL),HL		; SAVE FOR DISPLAY
+	LD	BC,H8P_SPVAL
+	LD	HL,H8P_SEGBUF
+	JP	H8P_FILLOCT
+H8P_HDLREGPC:
+	CALL	H8P_UPDLEDS
+;
+	;;;LD	HL,(HBX_INT_SP)		; (HL)=HL LOW
+	;;;INC	HL			; (HL)=HL HIGH
+	;;;INC	HL			; (HL)=PC LOW
+	;;;LD	A,(HL)
+	;;;LD	(H8P_PCVAL),A
+	;;;INC	HL			; (HL)=PC HIGH
+	;;;LD	A,(HL)
+	;;;LD	(H8P_PCVAL+1),A
+;
+	LD	A,(HB_CURBNK)		; GET PRE-INT BANK
+	LD	D,A			; PUT IN D
+;
+	; HORRIBLE HACK TO MAKE PEEK RETURN TO OUR BANK!!!
+	PUSH	AF			; SAVE ORIG HB_CURBNK
+	LD	A,BID_BIOS		; MAKE IT OUR BANK
+	LD	(HB_CURBNK),A		; OVERRIDE FOR PEEK
+;
+	; FOLLOW STACK TO GET PC, USE PEEK IN CASE STACK IN ALT BANK
+	LD	HL,(HBX_INT_SP)		; PRE-INT SP
+	INC	HL			; REMOVE 1 LEVEL TO
+	INC	HL			; ... POINT TO PRE-INT PC
+	CALL	HBX_PEEK		; GET LSB TO E
+	LD	C,E			; PUT IN C
+	INC	HL			; POINT TO MSB
+	CALL	HBX_PEEK		; GET MSB TO E
+	LD	B,E			; PUT IN B
+	LD	(H8P_PCVAL),BC		; SAVE FOR DISPLAY
+;
+	; UNDO HACK!!!
+	POP	AF			; RECOVER HB_CURBNK
+	LD	(HB_CURBNK),A		; SAVE RESTORE IT
+;
+	LD	BC,H8P_PCVAL
+	LD	HL,H8P_SEGBUF
+	JP	H8P_FILLOCT
+H8P_HDLMEM:
+	CALL	H8P_SETDIGD
+	RET
+H8P_HDLSPD:
+	LD	HL,H8P_SPD16
+	LD	A,(H8P_SPEED)
+	OR	A
+	JR	Z,H8P_UPDLEDS
+	LD	HL,H8P_SPD08
+	DEC	A
+	JR	Z,H8P_UPDLEDS
+	LD	HL,H8P_SPD04
+	DEC	A
+	JR	Z,H8P_UPDLEDS
+	LD	HL,H8P_SPD02
+H8P_UPDLEDS:
+	LD	C,9
+	LD	DE,H8P_SEGBUF
+H8P_UPDLEDS1:
+	LD	A,(HL)
+	INC	HL
+	LD	(DE),A
+	INC	DE
+	DEC	C
+	JR	NZ,H8P_UPDLEDS1
+	RET
 ;
-; DISPLAY BYTE VALUES POINTED TO BY DE.  THE INCOMING BYTES ARE IN
-; THE STANDARD ROMWBW SEGMENT ENCODING AND MUST BE TRANSLATED TO THE
-; HEATH ENCODING (SEE ICM.ASM FOR EXAMPLE):
+H8P_GETSEGIDX:
+	LD	A,(H8P_SEGIDX)
+	DEC	A
+	LD	(H8P_SEGIDX),A
+	LD	C,A
+	RET	NZ
+	LD	A,9
+	LD	(H8P_SEGIDX),A
+	LD	C,A
+	RET
 ;
+;	A = SEG IDX
 ;
-;	From:		To:
-;	+--01--+	+--02--+
-;	20    02	40    04
-;	+--40--+	+--01--+
-;	10    04	20    08
-;	+--08--+  80	+--10--+  80
+;	+--02--+
+;	40    04
+;	+--01--+
+;	20    08
+;	+--10--+  80
 ;
-H8P_SHOWSEG:
-	XOR	A			; SIGNAL SUCCESS
+H8P_GETSEGPAT:
+	LD	A,C
+	AND	$0F			; IDX=1 THRU 9
+	DEC	A
+	LD	C,A
+	LD	B,0
+	LD	HL,H8P_SEGBUF
+	ADD	HL,BC
+	LD	E,(HL)
+	LD	A,(H8P_MEMENTER)
+	OR	A
+	JR	Z,H8P_GETSEGPATX
+	LD	A,(H8P_MEMADRIDX)
+	CP	C
+	JR	NZ,H8P_GETSEGPATX
+	LD	A,$80
+	OR	E
+	LD	E,A
+H8P_GETSEGPATX:
+	LD	A,E
+	CPL
 	RET
-;
-; UPDATE KEY LEDS (H8 HAS NONE)
-;
-H8P_KEYLEDS:
-	XOR	A			; SIGNAL SUCCESS
+; BC=MEMLOC, HL=LED BUFFER
+H8P_FILLOCT:
+	PUSH	HL
+	INC	BC			; POINT TO HIGH BYTE
+	LD	A,(BC)
+	CALL	H8P_GETOCTH
+	LD	(HL),A
+	INC	HL
+	LD	A,(BC)
+	CALL	H8P_GETOCTM
+	LD	(HL),A
+	INC	HL
+	LD	A,(BC)
+	CALL	H8P_GETOCTL
+	LD	(HL),A
+	INC	HL
+	DEC	BC			; POINT TO LOW BYTE
+	LD	A,(BC)
+	CALL	H8P_GETOCTH
+	LD	(HL),A
+	INC	HL
+	LD	A,(BC)
+	CALL	H8P_GETOCTM
+	LD	(HL),A
+	INC	HL
+	LD	A,(BC)
+	CALL	H8P_GETOCTL
+	LD	(HL),A
+	POP	HL
 	RET
-;
-; SET STATUS LEDS BASED ON BITS IN E
-;
-H8P_STATLED:
-	XOR	A			; SIGNAL SUCCESS
+; HIGH OCTAL BITS
+H8P_GETOCTH:
+	AND	$C0
+	RRA
+	RRA
+	RRA
+	RRA
+	RRA
+	RRA
+	JR	H8P_GETOCTX
+; MEDIUM OCTAL BITS
+H8P_GETOCTM:
+	AND	$38
+	RRA
+	RRA
+	RRA
+	JR	H8P_GETOCTX
+; LOW OCTAL BITS
+H8P_GETOCTL:
+	AND	$07
+H8P_GETOCTX:
+	PUSH	HL
+	LD	E,A
+	LD	D,0
+	LD	HL,H8P_DIGMAP
+	ADD	HL,DE
+	LD	A,(HL)			; VALUE CONVERTED TO LED SEGMENT PATTERN
+	POP	HL
+	RET
+; B=CURVAL, C=NEWVAL
+H8P_SETOCTH:
+	LD	A,C
+	AND	$03
+	RLA
+	RLA
+	RLA
+	RLA
+	RLA
+	RLA
+	LD	C,A
+	LD	A,B
+	AND	$3F
+	OR	C
+	RET
+H8P_SETOCTM:
+	LD	A,C
+	AND	$07
+	RLA
+	RLA
+	RLA
+	LD	C,A
+	LD	A,B
+	AND	$C7
+	OR	C
+	RET
+H8P_SETOCTL:
+	LD	A,C
+	AND	$07
+	LD	C,A
+	LD	A,B
+	AND	$F8
+	OR	C
+	CALL	H8P_BEEP
 	RET
-;
-; BEEP THE SPEAKER ON THE H8P
 ;
 H8P_BEEP:
-	POP	BC
-	XOR	A			; SIGNAL SUCCESS
+	PUSH	HL
+	LD	HL,16
+	LD	(H8P_HORNDUR),HL
+	POP	HL
 	RET
 ;
 ; DEVICE INFORMATION
 ;
 H8P_DEVICE:
-	LD	D,DSKYDEV_H8P		; D := DEVICE TYPE
+;	LD	D,DSKYDEV_H8P		; D := DEVICE TYPE
 	LD	E,0			; E := PHYSICAL DEVICE NUMBER
 	LD	H,0			; H := MODE
-	LD	L,0			; L := BASE I/O ADDRESS
+	LD	L,H8FPIO		; L := BASE I/O ADDRESS
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
-;_KEYMAP_TABLE_____________________________________________________________________________________________________________
-;
-H8P_KEYMAP:	; *** NEEDS TO BE UPDATED ***
-	; POS	$00  $01  $02  $03  $04  $05  $06  $07
-	; KEY   [0]  [1]  [2]  [3]  [4]  [5]  [6]  [7]
-	.DB	$0D, $04, $0C, $14, $03, $0B, $13, $02
-;
-	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
-	; KEY   [8]  [9]  [A]  [B]  [C]  [D]  [E]  [F]
-	.DB	$0A, $12, $01, $09, $11, $00, $08, $10
+; DIGITS TO LED PATTERNS
+;	+--02--+
+;	40    04
+;	+--01--+
+;	20    08
+;	+--10--+  80
 ;
-	; POS	$10  $11  $12  $13  $14  $15  $16  $17
-	; KEY   [FW] [BK] [CL] [EN] [DE] [EX] [GO] [BO]
-	.DB	$05, $15, $1D, $1C, $1B, $1A, $19, $18
-
-	; POS	$18  $19  $1A  $1B
-	; KEY   [F4] [F3] [F2] [F1]
-	.DB	$23, $22, $21, $20
+H8P_DIGMAP:
+	;	  0    1    2    3    4    5    6    7
+	.DB	$7E, $0C, $37, $1F, $4D, $5B, $7B, $0E
+	;	  8    9    A    B    C    D    E    F
+	.DB	$7F, $5F, $6F, $79, $72, $3D, $73, $63
+;
+H8P_REGNUM:
+	.DB	0
+H8P_REGAF:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $6F, $63
+H8P_REGBC:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $79, $72
+H8P_REGDE:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $3D, $73
+H8P_REGHL:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $6D, $70
+H8P_REGSP:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $5B, $67
+H8P_REGPC:
+	.DB	$00, $00, $00, $00, $00, $00, $00, $67, $72
+H8P_SPD16:
+	.DB	$00, $00, $00, $00, $0C, $7B, $5B, $67, $3D
+H8P_SPD08:
+	.DB	$00, $00, $00, $00, $00, $7F, $5B, $67, $3D
+H8P_SPD04:
+	.DB	$00, $00, $00, $00, $00, $4D, $5B, $67, $3D
+H8P_SPD02:
+	.DB	$00, $00, $00, $00, $00, $37, $5B, $67, $3D
+H8P_MEMADRIDX:
+	.DB	0
+H8P_MEMENTER:
+	.DB	0
+H8P_SPVAL:
+	.DW	0
+H8P_AFVAL:
+	.DW	0
+H8P_BCVAL:
+	.DW	0
+H8P_DEVAL:
+	.DW	0
+H8P_HLVAL:
+	.DW	0
+H8P_PCVAL:
+	.DW	0
+;
+H8P_STATE:
+	.DB	00
+H8P_STTIMER:
+	.DB	00
+H8P_FPENA:
+	.DB	$FF
+H8P_SEGIDX:
+	.DB	09
+H8P_HBTICK:
+	.DB	00
+H8P_KEYBUF:
+	.DB	00
+H8P_LSTKEY:
+	.DB	00
+H8P_SEGBUF:
+	.DB	$FF,$FF,$FF,$FF,$FF,$FF,$FF,$FF,$FF
+H8P_HORNDUR:
+	.DW	$0080
+H8P_ONESEC:
+	.DW	500
+H8P_UPTIME:
+	.DW	0
+H8P_UPTDIG:
+	.DB	0,0,0,0,0,0,0,0,0
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index 8f340c68..eaa43d09 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -32,40 +32,43 @@
 ;   HBIOS APPLICATION BINARY.  THE APPENDED OS IMAGES ARE COPIED TO THE AUX RAM
 ;   BANK AND LAUNCHED AFTER HBIOS HAS INSTALLED ITSELF.
 ;
-;;;; - IMGBOOT: BOOT FROM AN IMAGE FILE THAT HAS BEEN PLACED IN THE USER BANK
-;;;;
-;;;;   WHEN IMGBOOT IS DEFINED, THE FILE IS ASSEMBLED SUCH THAT IT CAN BE PRELOADED
-;;;;   INTO THE RAM USER BANK BY AN EXTERNAL PROCESS THAT SUBSEQUENTLY LAUNCHES
-;;;;   THE CODE AT ADDRESS 0.  THE MOST COMMON EXAMPLE OF THIS IS THE UNA FSFAT
-;;;;   TOOL WHICH CAN LOAD AN IMAGE FROM A DOS FAT FILESYSTEM PROVIDING A SIMPLE
-;;;;   WAY TO LOAD A TEST COPY OF HBIOS.  AS IS THE CASE WITH APPBOOT, IT IS ASSUMED
-;;;;   THAT AN OS IMAGES FILE IS APPENDED TO THE END OF THE IMAGE AND IS LAUNCHED
-;;;;   AFTER HBIOS IS INSTALLED.
+; - IMGBOOT: BOOT FROM AN IMAGE FILE THAT HAS BEEN PLACED IN THE USER BANK
+;
+;   NOTE: THIS BOOT MODE IS DEPRECATED.
+;
+;   WHEN IMGBOOT IS DEFINED, THE FILE IS ASSEMBLED SUCH THAT IT CAN BE PRELOADED
+;   INTO THE RAM USER BANK BY AN EXTERNAL PROCESS THAT SUBSEQUENTLY LAUNCHES
+;   THE CODE AT ADDRESS 0.  THE MOST COMMON EXAMPLE OF THIS IS THE UNA FSFAT
+;   TOOL WHICH CAN LOAD AN IMAGE FROM A DOS FAT FILESYSTEM PROVIDING A SIMPLE
+;   WAY TO LOAD A TEST COPY OF HBIOS.  AS IS THE CASE WITH APPBOOT, IT IS ASSUMED
+;   THAT AN OS IMAGES FILE IS APPENDED TO THE END OF THE IMAGE AND IS LAUNCHED
+;   AFTER HBIOS IS INSTALLED.
 ;
 ; INCLUDE FILE NESTING:
 ;
-; hbios.asm
-;  - std.asm
-;    - ver.inc
-;    - hbios.inc
-;    - build.inc
-;      - config/<plt>_<cfg>.asm
-;        - cfg_<plt>.asm
-;      - [z180.inc|z280.inc]
-;      - [eipc.inc]
-;  - <drivers>.asm
-;  - <fonts>.asm
-;  - util.asm
-;  - time.asm
-;  - bcd.asm
-;  - decode.asm
-;  - encode.asm
-;  - [xio|mio].asm
-;  - unlzsa2s.asm
+; - std.asm
+;   - ../ver.inc
+;   - build.inc
+;     - Config/<plt>_std.asm
+;       - cfg_<plt>.asm
+;         - cfg_MASTER.asm
+;           - hbios.inc
+;   - [z180.inc]
+;   - [z280.inc]
+;   - [eipc.inc]
+; - util.asm
+; - time.asm
+; - bcd.asm
+; - decode.asm
+; - encode.asm
+; - [xio.asm]
+; - [mio.asm]
+; - [unlzsa2s.asm]
+; - <drivers...>.asm
+; - <fonts...>.asm
 ;
 ; MEMORY LAYOUT:
 ;
-; 
 ; DESCRIPTION			START	LENGTH
 ; ----------------------------- ------- -------
 ; Page Zero			0x0000	0x0100
@@ -75,8 +78,8 @@
 ; Interrupt Vector Table	0x0500	Varies
 ; System Initialization		Varies	Varies
 ; Function Dispatching		Varies	Varies
-; System API                    Varies	Varies
 ; Z280 Int Vector Table         Varies	Varies
+; System API                    Varies	Varies
 ; Internal Functions            Varies	Varies
 ; Utility Functions             Varies	Varies
 ; Print Summary Function        Varies	Varies
@@ -95,31 +98,46 @@
 ; D4	~PSG_RES	~PSG_RES			~PSG_RES	ROM_A19		~PSG_RES
 ; D3	STATUS_LED	STATUS_LED	VDP_LED		PSG_LED		ROM_A18		PSG_LED
 ; D2	VDP_A14		VDP_A14						ROM_A17		VDP_LED
-; D1	~VDP_SYN	~VDP_SYN					ROM_A16	
+; D1	~VDP_SYN	~VDP_SYN					ROM_A16
 ; D0	~VDP_RES	~VDP_RES	VDP_RES				ROM_A15		VDP_RES
 ;
 ; PORT	SCG:0x9C	0x94		VDP:0x92	PSG:0xA2	0x80		MEDIA:0xA6
 ;
 #DEFINE	HBIOS
 ;
-; MAKE SURE EXACTLY ONE OF ROMBOOT, APPBOOT, IMGBOOT IS DEFINED.
+; IF BUILDING FULL BOOT ROM, INCLUDE INFO MACROS
 ;
-MODCNT	.EQU	0
 #IFDEF ROMBOOT
-MODCNT	.SET	MODCNT + 1
-;
   #DEFINE BNKINFO
   #DEFINE MEMINFO
   #DEFINE DEVINFO
   #DEFINE SYSINFO
+#ENDIF
+;
+; INCLUDE GENERIC STUFF
+;
+#INCLUDE "std.asm"
+;
+; MAKE SURE EXACTLY ONE OF ROMBOOT, APPBOOT, IMGBOOT IS DEFINED.
+;
+MODCNT		.EQU	0
+BOOTMODE	.EQU	0
 ;
+#IFDEF ROMBOOT
+BOOTMODE	.SET	BM_ROMBOOT
+MODCNT		.SET	MODCNT + 1
 #ENDIF
+;
 #IFDEF APPBOOT
-MODCNT	.SET	MODCNT + 1
+BOOTMODE	.SET	BM_APPBOOT
+MODCNT		.SET	MODCNT + 1
 #ENDIF
-#IFDEF IMGBOOT
-MODCNT	.SET	MODCNT + 1
+;
+#IFDEF IMGBOOT		; *** DEPRECATED ***
+BOOTMODE	.SET	BM_IMGBOOT
+MODCNT		.SET	MODCNT + 1
 #ENDIF
+;
 #IF (MODCNT != 1)
 	.ECHO	"*** ERROR: PLEASE DEFINE ONE AND ONLY ONE OF ROMBOOT, APPBOOT, IMGBOOT!!!\n"
 	!!!	; FORCE AN ASSEMBLY ERROR
@@ -141,10 +159,6 @@ MODCNT	.SET	MODCNT + 1
   #DEFINE MEMECHO \;
 #ENDIF
 ;
-; INCLUDE GENERIC STUFF
-;
-#INCLUDE "std.asm"
-;
 SUPCTS	.EQU	FALSE		; SUPPRESS CTS DURING HBIOS BOOT
 ;
 ; HELPER MACROS
@@ -154,7 +168,11 @@ SUPCTS	.EQU	FALSE		; SUPPRESS CTS DURING HBIOS BOOT
 #IF (FPLED_ENABLE)
   #DEFINE FPLEDS(N)	PUSH	AF
   #DEFCONT \		LD	A,N
-  #DEFCONT \		CALL	FP_SETLEDS
+  #IF (FPLED_INV)
+    #DEFCONT \		XOR	$FF	; INVERT BITS IF NEEDED
+  #ENDIF
+  #DEFCONT \		EZ80_IO
+  #DEFCONT \		OUT	(FPLED_IO),A
   #DEFCONT \		POP	AF
 #ELSE
   #DEFINE		FPLEDS(N)	\;
@@ -163,14 +181,14 @@ SUPCTS	.EQU	FALSE		; SUPPRESS CTS DURING HBIOS BOOT
 ; SET DIAGNOSTIC LEDS
 ;
 ; SCxxx: LED Port=0x0E, bit 2, inverted, dedicated port (LEDMODE_SC)
-; SC7xx: LED Port=0x0E, bit 0, inverted, dedicated port (LEDMODE_STD)
+; SC7xx/SC5xx: LED Port=0x0E, bit 0, inverted, dedicated port (LEDMODE_STD)
 ; TinyZ80: LED Port=0x6E, bit 0, inverted, dedicated port (LEDMODE_STD)
 ; Z80-512K: LED Port=0x6E, bit 0, inverted, dedicated port (LEDMODE_STD)
 ; MBC: LED Port=0x70, bits 1-0, normal, shared w/ RTC port (LEDMODE_RTC)
 ; DUO: LED Port=0x94, bits 1-0, normal, shared w/ RTC port (LEDMODE_RTC)
 ; S100: LED Port = $0E, bit 2, inverted, dedicated port (LEDMODE_SC)
 ; NABU: LED Port = $00, bits 5-3, normal, shared w/ control port (LEDMODE_NABU)
-; 
+;
 #IF (LEDENABLE)
   #IF (LEDMODE == LEDMODE_STD)
     #DEFINE DIAG(N)	PUSH	AF
@@ -195,7 +213,8 @@ SUPCTS	.EQU	FALSE		; SUPPRESS CTS DURING HBIOS BOOT
   #ENDIF
   #IF (LEDMODE == LEDMODE_NABU)
     #DEFINE DIAG(N)	PUSH	AF
-    #DEFCONT \		LD	A,+((N << 3) & %00011000)
+    ;#DEFCONT \		LD	A,+((N << 3) & %00011000)
+    #DEFCONT \		LD	A,+((N << 3) & %00111000)
     #DEFCONT \		OUT	(LEDPORT),A
     #DEFCONT \		POP	AF
   #ENDIF
@@ -339,6 +358,9 @@ RTCDEF	.SET	RTCDEF | %00001000	; INITIAL SPEED LOW
   #ENDIF
 	DEVECHO	"\n"
 #ENDIF
+
+#INCLUDE "ez80instr.inc"
+
 ;
 ;==================================================================================================
 ; Z80 PAGE ZERO, VECTORS, ETC.
@@ -427,6 +449,7 @@ CB_CRTDEV	.DB	$FF		; PRIMARY CRT UNIT, $FF UNTIL AFTER HBIOS INIT
 CB_CONDEV	.DB	$FF		; CONSOLE UNIT, $FF UNTIL AFTER HBIOS INIT
 ;
 CB_DIAGLVL	.DB	DIAGLVL		; ROMWBW HBIOS DIAGNOSTIC LEVEL
+CB_BOOTMODE	.DB	BOOTMODE	; HBIOS BOOTMODE
 ;
 ; MEMORY MANAGEMENT VARIABLES START AT $20
 ;
@@ -435,6 +458,33 @@ CB_DIAGLVL	.DB	DIAGLVL		; ROMWBW HBIOS DIAGNOSTIC LEVEL
 CB_HEAP		.DW	0
 CB_HEAPTOP	.DW	0
 ;
+; SWITCHES SHADOW COPY (FROM RTC/NVR) START AT $30
+;
+		.FILL	(HCB + $30 - $),0
+;
+; First byte (header) of NVRAM = "W" if fully initialised, or a ststus byte
+; = 0 if no NVRAM detected, or = 1 If NVR exists, but not configured
+CB_SWITCHES	.DB	0		; this byte is set during init
+;
+;   Byte 0: (L)
+;     Bit 7-0 DISK BOOT SLice Number to Boot -> default = 0
+;     Bit 7-0 ROM BOOT (alpha character) Application to boot -> default = "H"
+;   Byte 1: (H)
+;     Bit 7 - ROM/DISK - Rom or Disk Boot -> Default=ROM=1 (BOOT_DEFAULT is Numeric/Alpha)
+;     Bit 6-0 - DISK BOOT Disk Unit to Boot (0-127) -> default = 0
+CB_SWDEFBOOT	.DB	'H'		; (WORD) DEFAULT BOOT NVR OPTIONS. USED By ROMLDR
+		.DB	DBOOT_ROM	; Default Boot - ROM Application
+;
+;   Byte 0: (L)
+;     Bit 7-6 - Reserved
+;     Bit 5 - AUTO BOOT Auto boot, default=false (BOOT_TIMEOUT != -1)
+;     Bit 4 - Reserved
+;     Bit 3-0 - BOOT_TIMEOUT in seconds (0-15) 0=immediate -> default=3
+CB_SWAUTOB	.DB	0		; AUTO BOOT NVR OPTIONS. USED By ROMLDR
+;
+; CHECKSUM
+CB_SWITCHCK	.DB	0		; CHECKSUM (XOR=0), INCLUDES HEADER and CB_VERSION
+;
 ; STANDARD BANK ID'S START AT $D8. DEFAULT VALUES FOR 512KB SYSTEM WITH NO RESERVED BANKS
 ;
 		.FILL	(HCB + $D8 - $),0
@@ -497,6 +547,13 @@ HBX_IDENT:
 ;
 HBX_INVOKE:
 ;
+#IF (INTMODE == 0)
+	; IF SOMETHING IN USERLAND ENABLES INTERRUPTS AND WE ARE NOT
+	; CONFIGURED TO USE THEM, THEN SHUT THEM BACK OFF AGAIN FOR
+	; SAFETY.
+	DI
+#ENDIF
+;
 #IF (HBIOS_MUTEX == TRUE)
 	PUSH	HL			; SAVE HL
 	LD	HL,HB_LOCK		; POINT TO LOCK
@@ -593,25 +650,44 @@ HBX_ROM:
 #ENDIF
 ;
 #IF (MEMMGR == MM_Z2)
+
+#IF (CPUFAM == CPU_EZ80)
+	BIT	7,A			; BIT 7 SET REQUESTS RAM PAGE
+	JR	Z,HBX_ROM		; NOT SET, SELECT ROM PAGE
+	RES	7,A			; RAM PAGE REQUESTED: CLEAR ROM BIT
+	ADD	A,16			; ADD 16 x 32K - RAM STARTS FROM 512K
+;
+HBX_ROM:
+	RLCA				; TIMES 2 - GET 16K PAGE INSTEAD OF 32K
+	OUT_NN_A(MPGSEL_0)		; BANK_0: 0K - 16K
+	INC	A			;
+	OUT_NN_A(MPGSEL_1)		; BANK_1: 16K - 32K
+	RET				; DONE
+
+#ELSE
+
 	BIT	7,A			; BIT 7 SET REQUESTS RAM PAGE
 	JR	Z,HBX_ROM		; NOT SET, SELECT ROM PAGE
 	RES	7,A			; RAM PAGE REQUESTED: CLEAR ROM BIT
   #IF (PLATFORM == PLT_DUO)
 	ADD	A,64			; ADD 64 x 32K - RAM STARTS FROM 2048K
   #ELSE
-	ADD	A,16			; ADD 16 x 32K - RAM STARTS FROM 512K
+	ADD	A,ROMSIZE / 32		; STARTING RAM BANK NUMBER OFFSET
   #ENDIF
 ;
 HBX_ROM:
 	RLCA				; TIMES 2 - GET 16K PAGE INSTEAD OF 32K
+ 	EZ80_IO()
 	OUT	(MPGSEL_0),A		; BANK_0: 0K - 16K
 	INC	A			;
+	EZ80_IO()
 	OUT	(MPGSEL_1),A		; BANK_1: 16K - 32K
   #IF (CPUFAM == CPU_Z280)
 	PCACHE
   #ENDIF
 	RET				; DONE
 #ENDIF
+#ENDIF
 ;
 #IF (MEMMGR == MM_N8)
 	BIT	7,A			; TEST BIT 7 FOR RAM VS. ROM
@@ -991,7 +1067,8 @@ HBX_BNKCALL_ADR:
 ;
 HBX_PEEK:
 	LD	(HBX_PPSP),SP		; SAVE ORIGINAL STACK FRAME
-	LD	SP,HBX_BUF_END		; BORROW HBX_BUF FOR TEMP STACK
+	;;;LD	SP,HBX_BUF_END		; BORROW HBX_BUF FOR TEMP STACK
+	LD	SP,HBX_BUF_END - $20	; BORROW HBX_BUF FOR TEMP STACK
 	LD	A,(HB_CURBNK)
 	PUSH	AF
 	LD	A,D
@@ -1001,7 +1078,8 @@ HBX_PEEK:
 ;
 HBX_POKE:
 	LD	(HBX_PPSP),SP		; SAVE ORIGINAL STACK FRAME
-	LD	SP,HBX_BUF_END		; BORROW HBX_BUF FOR TEMP STACK
+	;;;LD	SP,HBX_BUF_END		; BORROW HBX_BUF FOR TEMP STACK
+	LD	SP,HBX_BUF_END - $20	; BORROW HBX_BUF FOR TEMP STACK
 	LD	A,(HB_CURBNK)
 	PUSH	AF
 	LD	A,D
@@ -1023,6 +1101,22 @@ HBX_PPSP	.EQU	$ - 2
 ;
 #IF (MEMMGR != MM_Z280)
 ;
+; HEATH FRONT PANEL WORK SPACE (4 BYTES)
+;
+  #IF (H8PENABLE)
+H8P_MEMLOC:
+	.DW	0
+H8P_MEMVAL:
+	.DB	0
+H8P_MEMCPY:
+	LD	HL,(H8P_TICCNT)
+	LD	($000B),HL
+	LD	HL,(H8P_MEMLOC)
+	LD	A,(HL)
+	LD	(H8P_MEMVAL),A
+	RET
+  #ENDIF
+;
 HBX_INTSTKSIZ	.EQU	$FF00 - $
 		MEMECHO	"HBIOS INT STACK space: "
 		MEMECHO	HBX_INTSTKSIZ
@@ -1037,26 +1131,26 @@ HBX_INTSTK	.EQU	$
 ;
 #ENDIF
 ;
-; HBIOS INTERRUPT SLOT ASSIGNMENTS
-;
-; #	Z80		Z180
-; ---	--------------	--------------
-; 0	CTC0A		INT1 -+
-; 1	CTC0B		INT2  |
-; 2	CTC0C		TIM0  |
-; 3	CTC0D		TIM1  |
-; 4	UART0		DMA0  +- Z180 INTERNAL
-; 5	UART1		DMA1  |
-; 6			CSIO  |
-; 7	SIO0		SER0  |
-; 8	SIO1		SER1 -+
-; 9	PIO0A		PIO0A
-; 10	PIO0B		PIO0B
-; 11	PIO1A		PIO1A
-; 12	PIO1B		PIO1B
-; 13			SIO0
-; 14			SIO1
-; 15
+; HBIOS INTERRUPT MODE 2 SLOT ASSIGNMENTS (SEE STD.ASM)
+;
+; #	Z80/Z280	Z180            MBC		DUO		NABU
+; ---	--------------	--------------  --------------	--------------	--------------
+; 0	CTC0A		INT1 -+               -+	      -+	HCCARCV -+
+; 1	CTC0B		INT2  |                |	       |	HCCASND  |
+; 2	CTC0C		TIM0  |                | IM2	       | IM2	NABUKB	 | IM2
+; 3	CTC0D		TIM1  |                | INT	       | INT	VDP	 | INT
+; 4	UART0		DMA0  | Z180	UART0  | VEC	UART0  | VEC	OPTCRD0  | VEC
+; 5	UART1		DMA1  | CPU	UART1  | GEN	UART1  | GEN	OPTCRD1  | GEN
+; 6			CSIO  |                |	       |	OPTCRD2  |
+; 7	SIO0		SER0  |               -+	      -+	OPTCRD3 -+
+; 8	SIO1		SER1 -+         SIO0		SIO0
+; 9	PIO0A		PIO0A           SIO1		SIO1
+; 10	PIO0B		PIO0B           PIO0A		PIO0A
+; 11	PIO1A		PIO1A           PIO0B		PIO0B
+; 12	PIO1B		PIO1B           CTC0A		CTC0A
+; 13			SIO0            CTC0B		CTC0B
+; 14			SIO1            CTC0C		CTC0C
+; 15					CTC0D		CTC0D
 ;
 	; IVT MUST START AT PAGE BOUNDARY
 	ALIGN($100)
@@ -1155,13 +1249,6 @@ HBX_RETI:
 	PUSH	BC			; SAVE BC
 	PUSH	DE			; SAVE DE
 	PUSH	IY			; SAVE IY
-;
-#IF (PLATFORM == PLT_NABU)
-	PUSH	HL
-	LD	HL,($FFEA)		; TICCNT COPIED TO...
-	LD	($000B),HL		; ...LOW MEMORY FOR CP/M
-	POP	HL
-#ENDIF
 ;
 	LD	A,BID_BIOS		; HBIOS BANK
 	CALL	HBX_BNKSEL_INT		; SELECT IT
@@ -1173,6 +1260,10 @@ HBX_RETI:
 ;
 	LD	A,(HB_CURBNK)		; GET PRE-INT BANK
 	CALL	HBX_BNKSEL		; SELECT IT
+;
+  #IF (H8PENABLE)
+	CALL	H8P_MEMCPY
+  #ENDIF
 ;
 	; RESTORE STATE
 	POP	IY			; RESTORE IY
@@ -1185,8 +1276,15 @@ HBX_INT_SP	.EQU	$ - 2
 ;
 	POP	HL			; RESTORE HL
 ;
+
+#IF (CPUFAM == CPU_EZ80)
+	RET.L				; INTERRUPTS WILL BE ENABLED BY BY EZ80 FIRMWARE
+					; CAN THEY BE ENABLED HERE - DOES THAT RISK RE-ENTRANT OF THE HANDLER?
+#ELSE
 	HB_EI				; ENABLE INTERRUPTS
 	RETI				; AND RETURN
+#ENDIF
+
 ;
   #ENDIF
 ;
@@ -1341,12 +1439,27 @@ HB_START:
 	CALL	HB_APPBOOT		; PREPARE APP BOOT
 	RET	NZ			; RETURN ON ERROR
 ;
-HB_APPBOOT_Z:
-;
 #ENDIF
+;
+HB_RESTART:
 ;
 	DI				; NO INTERRUPTS
+#IF (CPUFAM != CPU_EZ80)
 	IM	1			; INTERRUPT MODE 1
+#ENDIF
+;
+#IFDEF APPBOOT
+;
+	; IF THIS IS AN APPLICATION BOOT, WE CAPTURE THE CURRENT BANK ID
+	; AND UPDATE THE PROXY IMAGE.  LATER, WHEN THE PROXY IMAGE IS COPIED
+	; TO IT'S RUNNING LOCATION AT TOP OF RAM, THE CORRECT HB_CURBNK
+	; VALUE WILL BE INSTALLED. NOTE: THE ADDRESSES IN THE PROXY
+	; IMAGE ARE FOR IT'S RUNNING LOCATION, SO WE NEED TO USE *MATH*
+	; TO DERIVE THE LOCATION OF HB_CURBNK IN THE IMAGE.
+	LD	A,(HB_CURBNK)
+	LD	(HB_CURBNK - HBX_LOC + HBX_IMG),A
+;
+#ENDIF
 ;
 #IF ((PLATFORM == PLT_DUO) & TRUE)
 	; THIS ARBITRARY DELAY SEEMS TO HELP DUODYNE CPU V1.0 SYSTEMS
@@ -1372,6 +1485,7 @@ BOOTWAIT:
 ;
 	;LD	A,(RTCDEFVAL)		; GET DEFAULT VALUE
 	LD	A,RTCDEF		; DEFAULT VALUE
+	EZ80_IO()
 	OUT	(RTCIO),A		; SET IT
 ;
 #IF (PLATFORM == PLT_N8)
@@ -1383,6 +1497,7 @@ BOOTWAIT:
 	LD	A,RPH_DEFACR		; ENSURE RPH ACR
 	OUT0	(RPH_ACR),A		; ... REGISTER IS INITIALIZED
 #ENDIF
+
 ;
 ; INITIALIZE DIAGNOSTIC AND/OR FRONT PANEL LED(S) TO INDICATE THE
 ; SYSTEM IS ALIVE. WE HAVE NO RAM AT THIS TIME, SO WE CANNOT USE
@@ -1396,9 +1511,12 @@ BOOTWAIT:
 	LD	A,DIAG_01
   #ENDIF
 ;
+	EZ80_IO()
 	OUT	(FPLED_IO),A
+
 #ENDIF
 ;
+
 #IF (LEDENABLE)
   #IF ((LEDMODE == LEDMODE_STD) | (LEDMODE == LEDMODE_SC))
 	XOR	A			; LED IS INVERTED, TURN IT ON
@@ -1429,7 +1547,7 @@ BOOTWAIT:
 	LD	C,Z280_MSR		; MASTER STATUS REGISTER
 	LD	HL,$0000		; SYS MODE, NO INTERRUPTS
 	LDCTL	(C),HL			; DO IT
-;	
+;
 	; SET MAXIMUM I/O WAIT STATES FOR NOW
 	LD	C,Z280_BTCR		; BUS TIMING AND CONTROL REGISTER
 	LD	HL,$0033		; 3 I/O WAIT STATES ADDED
@@ -1460,11 +1578,11 @@ BOOTWAIT:
 	; LEFT ALONE.
 ;
 	; INITIALIZE ALL OF THE USER PAGE DESCRIPTORS WITH BLOCK MOVE
-#IFDEF APPBOOT
+    #IFDEF APPBOOT
 	LD	A,$08			; FIRST USER PDR IN HI MEM
-#ELSE
+    #ELSE
 	LD	A,$00			; FIRST USER PDR
-#ENDIF
+    #ENDIF
 	OUT	(Z280_MMUPDRPTR),A	; SET THE PDR POINTER
 	LD	HL,Z280_BOOTPDRTBL	; START OF PDR VALUES TABLE
 	LD	C,Z280_MMUBLKMOV	; PDR BLOCK MOVE PORT
@@ -1472,11 +1590,11 @@ BOOTWAIT:
 	OTIRW				; OTIRW PROGS PDRS SEQUENTIALLY
 ;
 	; INITIALIZE ALL OF THE SYSTEM PAGE DESCRIPTORS WITH BLOCK MOVE
-#IFDEF APPBOOT
+    #IFDEF APPBOOT
 	LD	A,$18			; FIRST SYSTEM PDR IN HI MEM
-#ELSE
+    #ELSE
 	LD	A,$10			; FIRST SYSTEM PDR
-#ENDIF
+    #ENDIF
 	OUT	(Z280_MMUPDRPTR),A	; SET THE PDR POINTER
 	LD	HL,Z280_BOOTPDRTBL	; START OF PDR VALUES TABLE
 	LD	C,Z280_MMUBLKMOV	; PDR BLOCK MOVE PORT
@@ -1493,7 +1611,7 @@ BOOTWAIT:
 	ALIGN(2)			; WORD ALIGN THE PDR TABLE
 ;
 Z280_BOOTPDRTBL:
-#IFNDEF APPBOOT
+    #IFNDEF APPBOOT
 	; LOWER 32 K (BANKED)
 	.DW	((Z2_BANK(BID_BOOT) + 0) << 4) | $A
 	.DW	((Z2_BANK(BID_BOOT) + 1) << 4) | $A
@@ -1503,7 +1621,7 @@ Z280_BOOTPDRTBL:
 	.DW	((Z2_BANK(BID_BOOT) + 5) << 4) | $A
 	.DW	((Z2_BANK(BID_BOOT) + 6) << 4) | $A
 	.DW	((Z2_BANK(BID_BOOT) + 7) << 4) | $A
-#ENDIF
+    #ENDIF
 	; UPPER 32 K (COMMON)
 	.DW	((Z2_BANK(BID_COM) + 0) << 4) | $A
 	.DW	((Z2_BANK(BID_COM) + 1) << 4) | $A
@@ -1670,9 +1788,12 @@ ROMRESUME:
 	; REDUNDANT BECAUSE WE ARE ALREADY RUNNING IN THIS AREA.  THE
 	; MAPPING OF THE SECOND 16K IS CRITICAL BECAUSE ALL ZETA 2
 	; MMU REGISTERS WILL BE 0 AT RESET!
+
 	XOR	A
+	EZ80_IO()
 	OUT	(MPGSEL_0),A		; PROG FIRST 16K MMU REGISTER
 	INC	A
+	EZ80_IO()
 	OUT	(MPGSEL_1),A		; PROG SECOND 16K MMU REGISTER
   #ENDIF
 ;
@@ -1683,16 +1804,27 @@ ROMRESUME:
   #ELSE
 	; NORMAL ZETA 2 SYSTEM HAS FIXED 512K OF RAM.  SETUP COMMON
 	; FOR TOP 32K OF THIS.
-	LD	A,64 - 2
+	;LD	A,64 - 2
+	LD	A,((ROMSIZE + RAMSIZE) / 16) - 2
   #ENDIF
 ;
+	EZ80_IO()
 	OUT	(MPGSEL_2),A		; PROG THIRD 16K MMU REGISTER
 	INC	A
+	EZ80_IO()
 	OUT	(MPGSEL_3),A		; PROG FOURTH 16K MMU REGISTER
 	; ENABLE PAGING
 	LD	A,1
+	EZ80_IO()
 	OUT	(MPGENA),A		; ENABLE MMU NOW
+;
+  #IF (PLATFORM == PLT_FZ80)
+	; REMOVE FPGA ROM MONITOR FROM THE CPU ADDRESS SPACE
+	LD	A,%00000010
+	OUT	($07),A
+  #ENDIF
 #ENDIF
+
 ;
 ;--------------------------------------------------------------------------------------------------
 ; PROXY INSTALLATION
@@ -1703,7 +1835,7 @@ ROMRESUME:
 ;
 ; WE USE THE TWO BYTES IMMEDIATELY BELOW THE PROXY TO STORE A COUPLE
 ; VALUES TEMPORARILY BECAUSE WE MAY BE OPERATING IN ROM AT THIS POINT.
-; (HBX_LOC - 1) = BATCOND, (HBX_LOC - 2) = APPBANK
+; (HBX_LOC - 1) = BATCOND, (HBX_LOC - 2) = LOADBANK
 ; THERE IS NOTHING ON THE STACK AT THIS POINT SO, HERE, WE JUST RESET
 ; THE STACK TO HBX_LOC - 2.
 ;
@@ -1725,7 +1857,7 @@ ROMRESUME:
 	XOR	A			; ZERO MEANS LOW BAT
 	LD	(HL),A			; FIRST RAM ACCESS
 	INC	A			; 1 MEANS BAT OK
-	LD	(HL),A			; SECOND RAM ACCESS (BLOLCKED IF BATTERY ISSUE)
+	LD	(HL),A			; SECOND RAM ACCESS (BLOCKED IF BATTERY ISSUE)
 ;
 ; INSTALL PROXY IN UPPER MEMORY
 ;
@@ -1783,8 +1915,10 @@ S100MON_SKIP:
 ; SEE COMMENTS ABOVE REGARDING THE FUNKY WAY THAT THE RTCDEFVAL IS
 ; CREATED.
 ;
+
 	LD	A,(RTCDEFVAL)
 	LD	(HB_RTCVAL),A
+	EZ80_IO()
 	OUT	(RTCIO),A		; SET IT
 	DIAG(1)				; REAPPLY CURRENT DIAG LED SETUP
 ;
@@ -1825,23 +1959,23 @@ S100MON_SKIP:
 ; MBC BANK SELECT MASK SETUP
 ;--------------------------------------------------------------------------------------------------
 ;
-; THE MBC RAM BOARD CAN CONTAIN 1 OR 2 RAM CHIPS.  THE COMMON RAM BANK IS 
+; THE MBC RAM BOARD CAN CONTAIN 1 OR 2 RAM CHIPS.  THE COMMON RAM BANK IS
 ; FIXED BY HARDWARE TO BE THE TOP 32K OF THE *FIRST* RAM CHIP.  WHEN THERE
-; ARE 2 RAM CHIPS INSTALLED, THE HARDWARE WILL THUS PLACE THE COMMON RAM IN 
-; THE MIDDLE OF PHYSICAL RAM.  HBIOS REQUIRES THAT THE COMMON RAM BANK BE 
-; MAPPED TO THE VERY LAST 32K OF PHYSICAL RAM.  THIS IS REQUIRED SO THAT 
-; THE RAM DISK BANKS CAN BE SEQUENTIAL.  TO WORK AROUND THIS, WE USE AN 
-; XOR MASK THAT IS APPLIED DURING BANK SELECT.  THIS MASK WILL FLIP THE 
-; HIGH ORDER BANK SELECT BIT (WHEN 2 RAM CHIPS ARE USED) SO THAT THE TWO 
-; RAM CHIPS WIND UP "REVERSED" AND THE FIXED COMMON BANK WINDS UP AT THE 
+; ARE 2 RAM CHIPS INSTALLED, THE HARDWARE WILL THUS PLACE THE COMMON RAM IN
+; THE MIDDLE OF PHYSICAL RAM.  HBIOS REQUIRES THAT THE COMMON RAM BANK BE
+; MAPPED TO THE VERY LAST 32K OF PHYSICAL RAM.  THIS IS REQUIRED SO THAT
+; THE RAM DISK BANKS CAN BE SEQUENTIAL.  TO WORK AROUND THIS, WE USE AN
+; XOR MASK THAT IS APPLIED DURING BANK SELECT.  THIS MASK WILL FLIP THE
+; HIGH ORDER BANK SELECT BIT (WHEN 2 RAM CHIPS ARE USED) SO THAT THE TWO
+; RAM CHIPS WIND UP "REVERSED" AND THE FIXED COMMON BANK WINDS UP AT THE
 ; END OF THE RAM BANKS.  THE MASK IS SETUP HERE BASED ON THE NUMBER OF RAM
 ; CHIPS AND THEIR SIZE.  NOTE THAT THE NUMBER OF RAM CHIPS IS INFERRED BY
 ; THE TOTAL RAM SIZE.  A SINGLE CHIP WILL BE EITHER 128K OR 512K.  IF THE
 ; TOTAL RAM SIZE OF THE SYSTEM IS 256K OR 1M, THEN THERE MUST BE TWO CH
-; IPS.  THE RESULTING BANK SELECT MASK IS INSERTED INTO THE MBC BANK 
+; IPS.  THE RESULTING BANK SELECT MASK IS INSERTED INTO THE MBC BANK
 ; SELECT ROUTINE.
-; 
-#IF (MEMMGR == MM_MBC) 
+;
+#IF (MEMMGR == MM_MBC)
 ;
 	; ALTHOUGH DYNAMIC SYSTEM RAM SIZING IS NOT POSSIBLE FOR MBC
 	; (SEE COMMENTS ABOVE), WE ARE STILL DOING THE MASK SETUP
@@ -1875,6 +2009,7 @@ MBC_SINGLE:
 ; COPY OURSELVES TO HBIOS BANK IN RAM
 ;
 	LD	A,(HB_CURBNK)		; GET CURRENT BANK ID
+	LD	(HBX_LOC - 2),A		; SAVE THE LOAD BANK
 ;
 	; CHECK TO SEE IF WE ARE ALREADY RUNNING IN THE HBIOS RAM
 	; BANK AND SKIP THE COPY IF SO (DON'T COPY OVER OURSELVES).
@@ -1882,7 +2017,7 @@ MBC_SINGLE:
 	; FULL RESTART OF A SYSTEM USING THE EXISTING HBIOS COPY.
 	; NOTE THAT THIS TEST WORKS BECAUSE BID_BIOS == BID_BOOT
 	; IN THESE SCENARIOS.
-	CP	BID_BIOS		; SAVE AS BIOS BANK?
+	CP	BID_BIOS		; SAME AS BIOS BANK?
 	JR	Z,HB_START1		; IF SO, SKIP
 ;
 	LD	(HB_SRCBNK),A		; CURRENT BANK IS SOURCE
@@ -1939,11 +2074,96 @@ HB_START1:				; BNKCALL ARRIVES HERE, BUT NOW RUNNING IN RAM BANK
 	LD	A,H			; GET FIRST BYTE PUSHED
 	LD	(HB_BATCOND),A		; ... AND SAVE AS BAT COND
 ;
-; IF APPBOOT, WE NEED TO FIX UP A FEW THINGS IN PAGE ZERO
-; ;;; SHOULD THIS BE DONE FOR AN HBIOS RESTART IN PLACE???
+#IF FALSE
+;
+; POPULATE THE CRITICAL RAM BANK NUMBERS.
+;
+; ASSUME THAT CB_RAMBANKS IS THE NUMBER OF 32K RAM BANKS THAT HAS BEEN SET EITHER
+; AT ASSEMBLY TIME OR BY PROBING THE ACTUAL AVAILABLE MEMORY (NOT IMPLEMENTED YET).
+;
+	LD	A,(CB_RAMBANKS)			; CALCULATE TOP RAMBANK
+	ADD	A,BID_RAM0			; AS FIRST RAMBANK +
+	DEC	A				; #RAMBANKS - 1
+;
+	LD	HL,CB_BIDCOM
+	LD	B,4
+CB_IDS:	LD	(HL),A				; POPULATE CB_BIDCOM
+	INC	HL				; POPULATE CB_BIDUSR
+	DEC	A				; POPULATE CB_BIDBIOS
+	DJNZ	CB_IDS				; POPULATE CB_BIDAUX
+;
+	LD	A,(CB_BIDUSR)
+	LD	(HB_SRCBNK),A			; POPULATE HB_SRCBNK
+	LD	(HB_DSTBNK),A			; POPULATE HB_DSTBNK
+;
+	LD	A,BID_RAM0			; POPULATE CB_BIDRAMD0	; START RAMBANK
+	LD	(HL),A
+	INC	HL
+;
+	LD	A,(CB_RAMBANKS)			; POPULATE CB_BIDRAMDN	; END RAMBANK
+	DEC	A
+	SUB	TOT_RAM_RB
+	LD	(HL),A
+;
+#ENDIF
+;
+;--------------------------------------------------------------------------------------------------
+; INTERRUPT MANAGEMENT SETUP
+;--------------------------------------------------------------------------------------------------
+;
+; SETUP INTERRUPT VECTOR TABLE ADDRESS(ES) AND TRANSITION TO
+; OPERATING INTERRUPT MODE.  NOTE THAT INTERRUPTS REMAIN
+; DISABLED AT THIS POINT.
+;
+#IF (CPUFAM != CPU_EZ80)
+#IF ((INTMODE == 2) | ((INTMODE == 1) & (CPUFAM == CPU_Z180)))
+	; SETUP Z80 IVT AND INT MODE 2
+	LD	A,HBX_IVT >> 8		; SETUP HI BYTE OF IVT ADDRESS
+	LD	I,A			; ... AND PLACE IT IN I REGISTER
+
+  #IF (CPUFAM == CPU_Z180)
+	; SETUP Z180 IVT
+	XOR	A			; SETUP LO BYTE OF IVT ADDRESS
+	OUT0	(Z180_IL),A		; ... AND PLACE IN Z180 IL REGISTER
+  #ENDIF
+
+  #IF (INTMODE == 2)
+	IM	2			; SWITCH TO INT MODE 2
+  #ENDIF
+#ENDIF
+;
+#IF (MEMMGR == MM_Z280)
+	; NOW POINT TO RAM COPY OF Z280 INT/TRAP TABLE
+	; HL IS TOP 16 BITS OF PHYSICAL ADDRESS OF IVT
+	; IVT *MUST* BE ON A 4K BOUNDARY
+	LD	C,Z280_VPR
+	LD	HL,0 + (((PBANK(BID_BIOS) << 15) + Z280_IVT) >> 8)
+	LDCTL	(C),HL
+#ENDIF
+;
+#IF (INTMODE == 3)
+;
+	; SETUP Z280 INT A FOR VECTORED INTERRUPTS
+	LD	HL,%0010000000000000
+	LD	C,Z280_ISR
+	LDCTL	(C),HL
+;
+	; TRANSITION TO INTERRUPT MODE 3
+	IM	3
+;
+#ENDIF
+#ENDIF
+;
+;--------------------------------------------------------------------------------------------------
+; APPLICATION BOOT INITIALIZATION
+;--------------------------------------------------------------------------------------------------
+;
+; IF APPBOOT, WE NEED TO FIX UP A FEW THINGS IN PAGE ZERO AND
+; COPY THE PAYLOAD CONTAINING ROMLDR, MONITOR, AND ZSDOS TO AUX BANK.
 ;
 #IFDEF APPBOOT
 ;
+	;;; SHOULD THIS BE DONE FOR AN HBIOS RESTART IN PLACE???
 	; MAKE SURE RST 08 VECTOR IS RIGHT
 	LD	A,$C3
 	LD	($0008),A
@@ -1967,40 +2187,37 @@ HB_START1:				; BNKCALL ARRIVES HERE, BUT NOW RUNNING IN RAM BANK
 	INC	HL
 	LD	(HL),$4D
   #ENDIF
-#ENDIF
-;
-#IF FALSE
-;
-; POPULATE THE CRITICAL RAM BANK NUMBERS.
-;
-; ASSUME THAT CB_RAMBANKS IS THE NUMBER OF 32K RAM BANKS THAT HAS BEEN SET EITHER
-; AT ASSEMBLY TIME OR BY PROBING THE ACTUAL AVAILABLE MEMORY (NOT IMPLEMENTED YET).
 ;
-	LD	A,(CB_RAMBANKS)			; CALCULATE TOP RAMBANK
-	ADD	A,BID_RAM0			; AS FIRST RAMBANK +
-	DEC	A				; #RAMBANKS - 1
+	; CHECK TO SEE IF THIS IS AN IN-PLACE RESTART.  IF SO,
+	; WE NEED TO SKIP THE COPY OF THE CONCATENATED OS IMAGES BELOW.
+	LD	A,(HB_RAMFLAG)		; GET THE FLAG
+	OR	A			; TEST IT
+	JR	NZ,HB_START2		; IF SET, SKIP
+	DEC	A			; SET FLAG
+	LD	(HB_RAMFLAG),A		; SAVE IT
 ;
-	LD	HL,CB_BIDCOM
-	LD	B,4
-CB_IDS:	LD	(HL),A				; POPULATE CB_BIDCOM
-	INC	HL				; POPULATE CB_BIDUSR
-	DEC	A				; POPULATE CB_BIDBIOS
-	DJNZ	CB_IDS				; POPULATE CB_BIDAUX
+	; FOR AN APPLICATION BOOT, WE ALSO COPY THE CONCATENATED OS
+	; IMAGES TO THE AUX BANK WHERE WE WILL JUMP TO ROMLDR LATER.
+	LD	A,(HB_CURBNK)		; GET CURRENT BANK ID
+	LD	(HB_SRCBNK),A		; SETUP SOURCE BANK
+	LD	A,BID_AUX		; DEST BANK IS AUX BANK
+	LD	(HB_DSTBNK),A		; SETUP DESTINATION BANK
+	LD	HL,HB_END		; COPY FROM END OF HBIOS
+	LD	DE,0			; TO START OF TARGET BANK
+	LD	BC,$8000		; COPY ENTIRE 32KB BANK
+	CALL	HBX_BNKCPY		; ELSE NORMAL BANK COPY
+	JR	HB_START2		; CONTINUE
 ;
-	LD	A,(CB_BIDUSR)
-	LD	(HB_SRCBNK),A			; POPULATE HB_SRCBNK
-	LD	(HB_DSTBNK),A			; POPULATE HB_DSTBNK		
+;;; RELOCATE THIS DATA FIELD
+HB_RAMFLAG	.DB	$00
 ;
-	LD	A,BID_RAM0			; POPULATE CB_BIDRAMD0	; START RAMBANK
-	LD	(HL),A
-	INC	HL
+#ENDIF
 ;
-	LD	A,(CB_RAMBANKS)			; POPULATE CB_BIDRAMDN	; END RAMBANK
-	DEC	A
-	SUB	TOT_RAM_RB
-	LD	(HL),A
+HB_START2:
 ;
-#ENDIF
+;--------------------------------------------------------------------------------------------------
+; GENERAL HBIOS INITIALIZATION
+;--------------------------------------------------------------------------------------------------
 ;
 ; CLEAR DISPATCH TABLE ENTRIES
 ;
@@ -2011,6 +2228,50 @@ CB_IDS:	LD	(HL),A				; POPULATE CB_BIDCOM
 	LD	(SND_CNT),A		; SND DEVICES
 	LD	(RTC_DISPACT),A		; RTC DEVICE
 	LD	(DSKY_DISPACT),A	; DSKY DEVICE
+	LD	HL,RTC_DISPERR		; DEFAULT RTC DISPADR
+	LD	(RTC_DISPADR),HL	; SET IT
+	LD	HL,DSKY_DISPERR		; DEFAULT DSKY DISPADR
+	LD	(DSKY_DISPADR),HL	; SET IT
+;
+; INITIALIZE SOME HCB ENTRIES
+;
+	OR	$FF			; $FF TO ACCUM
+	LD	(CB_CRTDEV),A		; RESET CRT DEVICE
+;
+; CLEAR INTERRUPT VECTOR TABLES
+;
+; THIS IS REALLY ONLY REQUIRED ON A RESTART, BUT IT DOESN'T HURT TO
+; DO IT ALL THE TIME.
+;
+	LD	HL,HB_IVT + 1		; FIRST VECTOR (IM2)
+	LD	B,16			; CLEAR 16 VECTORS
+	CALL	HB_CLRIVT		; DO IT
+	LD	HL,HB_IM1INT + 1	; FIRST VECTOR (IM1)
+	LD	B,8			; CLEAR 8 VECTORS
+	CALL	HB_CLRIVT		; DO IT
+	XOR	A			; ZERO ACCUM
+	LD	(HB_IM1CNT),A		; ... TO CLEAR IM1 VECTOR CNT
+	LD	HL,HB_IM1INT		; POINTER TO START OF IM1 IVT
+	LD	(HB_IM1PTR),HL		; ... TO CLEAR IM1 PTR
+
+	LD	HL,HB_TICK
+	LD	(VEC_TICK + 1),HL
+	LD	HL,HB_SECOND
+	LD	(VEC_SECOND + 1),HL
+
+	JR	HB_CLRIVT_Z		; DONE, JUMP OVER SUBROUTINE
+;
+HB_CLRIVT:
+	LD	(HL),HB_BADINT & $FF
+	INC	HL
+	LD	(HL),HB_BADINT >> 8
+	INC	HL
+	INC	HL
+	INC	HL
+	DJNZ	HB_CLRIVT
+	RET
+;
+HB_CLRIVT_Z:
 ;
 ; INITIALIZE HEAP STORAGE
 ;
@@ -2036,6 +2297,7 @@ CB_IDS:	LD	(HL),A				; POPULATE CB_BIDCOM
 ;	2: Z8S180 - ORIGINAL S-CLASS, REV. K, AKA SL1960, NO ASCI BRG
 ;	3: Z8S180 - REVISED S-CLASS, REV. N, W/ ASCI BRG
 ;	4: Z8280
+;       5: eZ80
 ;
 	LD	HL,0		; L = 0 MEANS Z80
 ;
@@ -2089,6 +2351,10 @@ HB_CPU1:
 ; SOME DRIVERS NEED TO BE CALLED AS EARLY AS WE CAN ONE AN OPERATING
 ; ENVIRONMENT IS ESTABLISHED.
 ;
+#IF (CPUFAM == CPU_EZ80)
+	; THIS WILL RE-ASSIGN HB_CPUTYPE
+	CALL	EZ80_PREINIT
+#ENDIF
 #IF (SN76489ENABLE)
 	; SN76489 CHIP GENERATES UGLY NOISE AFTER HARDWARE RESET.
 	; WE CALL THIS DRIVER'S PREINIT ASAP TO SHUT OFF THE NOISE.
@@ -2104,38 +2370,45 @@ HB_CPU1:
 ; DSKY INITIALIZATION AND ANNOUNCEMENT
 ;--------------------------------------------------------------------------------------------------
 ;
-#IF (DSKYENABLE)
-  #IF (ICMENABLE)
+;;;#IF (DSKYENABLE)
+#IF (ICMENABLE)
 	CALL	ICM_PREINIT
-  #ENDIF
-  #IF (PKDENABLE)
+#ENDIF
+#IF (PKDENABLE)
 	CALL	PKD_PREINIT
-  #ENDIF
-  #IF (H8PENABLE)
+#ENDIF
+;
+	;;;; ANNOUNCE OURSELVES ON DSKY
+	;;;LD	HL,MSG_HBVER + 5
+	;;;LD	A,(DSKY_HEXMAP + RMJ)
+	;;;OR	$80
+	;;;LD	(HL),A
+	;;;INC	HL
+	;;;LD	A,(DSKY_HEXMAP + RMN)
+	;;;OR	$80
+	;;;LD	(HL),A
+	;;;INC	HL
+	;;;LD	A,(DSKY_HEXMAP + RUP)
+	;;;LD	(HL),A
+	;;;LD	HL,MSG_HBVER
+	;;;LD	B,BF_DSKYSHOWSEG
+	;;;CALL	DSKY_DISPATCH
+;;;#ENDIF
+#IF (LCDENABLE)
+	CALL	LCD_PREINIT
+#ENDIF
+#IF (H8PENABLE)
 	CALL	H8P_PREINIT
-  #ENDIF
-;
-	; ANNOUNCE OURSELVES ON DSKY
-	LD	HL,MSG_HBVER +  5
-	LD	A,(DSKY_HEXMAP + RMJ)
-	OR	$80
-	LD	(HL),A
-	INC	HL
-	LD	A,(DSKY_HEXMAP + RMN)
-	OR	$80
-	LD	(HL),A
-	INC	HL
-	LD	A,(DSKY_HEXMAP + RUP)
-	LD	(HL),A
-	LD	HL,MSG_HBVER
-	LD	B,BF_DSKYSHOWSEG
-	CALL	DSKY_DISPATCH
-#ENDIF
+#ENDIF
+#IF (GM7303ENABLE)
+	CALL GM7303_PREINIT
+#ENDIF
 ;
 	FPLEDS(DIAG_05)
 ;
 ; INIT OSCILLATOR SPEED FROM CONFIG
 ;
+#IF (CPUFAM != CPU_EZ80)
 	LD	HL,CPUOSC / 1000	; OSC SPD IN KHZ
 	LD	(HB_CPUOSC),HL		; INIT HB_CPUOSC DEFAULT
 ;
@@ -2150,9 +2423,11 @@ HB_CPU1:
 ;
 	; RECORD THE UPDATED CPU OSCILLATOR SPEED
 ;
-#IF ((CPUFAM == CPU_Z180) | (CPUSPDCAP == SPD_HILO))
+#IF ((CPUFAM == CPU_Z180) | (CPUSPDCAP == SPD_HILO) | (PLATFORM=PLT_HEATH))
 	; SPEED MEASURED WILL BE HALF OSCILLATOR SPEED
 	; SO RECORD DOUBLE THE MEASURED VALUE
+	; FOR HEATH, WE ARE ASSUMING THAT THE CPU SPEED DIVISOR WAS
+	; PREVIOUSLY SET TO $01 MEANING HALF OF OSCILLATOR SPEED.
 	SLA	L
 	RL	H
 #ENDIF
@@ -2160,6 +2435,7 @@ HB_CPU1:
 	LD	(HB_CPUOSC),HL		; RECORD MEASURED SPEED
 ;
 HB_CPU2:
+#ENDIF
 ;
 ;--------------------------------------------------------------------------------------------------
 ; FINALIZE OPERATING CPU SPEED
@@ -2185,6 +2461,12 @@ HB_CPU2:
   #ENDIF
 #ENDIF
 ;
+#IF (PLATFORM == PLT_HEATH)
+	; ADJUST HL TO REFLECT HALF SPEED OPERATION
+	SRL	H		; ADJUST HL ASSUMING
+	RR	L		; HALF SPEED OPERATION
+#ENDIF
+;
 #IF ((CPUSPDCAP==SPD_HILO) & (PLATFORM==PLT_SBC))
   #IF (CPUSPDDEF==SPD_HIGH)
 	; SET HIGH SPEED VIA RTC LATCH
@@ -2207,7 +2489,7 @@ HB_CPU2:
 	; ADJUST HL TO REFLECT HALF SPEED OPERATION
 	SRL	H		; ADJUST HL ASSUMING
 	RR	L		; HALF SPEED OPERATION
-;	
+;
   #IF (Z180_CLKDIV >= 1)
 	LD	A,(HB_CPUTYPE)	; GET CPU TYPE
 	CP	2		; Z8S180 REV K OR BETTER?
@@ -2322,52 +2604,9 @@ HB_CPU3:
 ;
 ;;; LOCATION OF THIS CODE???
 ;
+#IF (CPUFAM != CPU_EZ80)
 	LD	A,(CB_CPUMHZ)		; CPU SPEED TO ACCUM AND INIT
 	CALL	DELAY_INIT		; .. SPEED COMPENSATED DELAY
-;
-;--------------------------------------------------------------------------------------------------
-; INTERRUPT MANAGEMENT SETUP
-;--------------------------------------------------------------------------------------------------
-;
-; SETUP INTERRUPT VECTOR TABLE ADDRESS(ES) AND TRANSITION TO
-; OPERATING INTERRUPT MODE.  NOTE THAT INTERRUPTS REMAIN
-; DISABLED AT THIS POINT.
-;
-#IF ((INTMODE == 2) | ((INTMODE == 1) & (CPUFAM == CPU_Z180)))
-	; SETUP Z80 IVT AND INT MODE 2
-	LD	A,HBX_IVT >> 8		; SETUP HI BYTE OF IVT ADDRESS
-	LD	I,A			; ... AND PLACE IT IN I REGISTER
-
-  #IF (CPUFAM == CPU_Z180)
-	; SETUP Z180 IVT
-	XOR	A			; SETUP LO BYTE OF IVT ADDRESS
-	OUT0	(Z180_IL),A		; ... AND PLACE IN Z180 IL REGISTER
-  #ENDIF
-
-  #IF (INTMODE == 2)
-	IM	2			; SWITCH TO INT MODE 2
-  #ENDIF
-#ENDIF
-;
-#IF (MEMMGR == MM_Z280)
-	; NOW POINT TO RAM COPY OF Z280 INT/TRAP TABLE
-	; HL IS TOP 16 BITS OF PHYSICAL ADDRESS OF IVT
-	; IVT *MUST* BE ON A 4K BOUNDARY
-	LD	C,Z280_VPR
-	LD	HL,0 + (((PBANK(BID_BIOS) << 15) + Z280_IVT) >> 8)
-	LDCTL	(C),HL
-#ENDIF
-;
-#IF (INTMODE == 3)
-;
-	; SETUP Z280 INT A FOR VECTORED INTERRUPTS
-	LD	HL,%0010000000000000
-	LD	C,Z280_ISR
-	LDCTL	(C),HL
-;
-	; TRANSITION TO INTERRUPT MODE 3
-	IM	3
-;
 #ENDIF
 ;
 ;--------------------------------------------------------------------------------------------------
@@ -2707,34 +2946,21 @@ NXTMIO:	LD	A,(HL)
 NOT_REC_M2:
 ;
 	FPLEDS(DIAG_08)
-
-#IF (PLATFORM == PLT_NABU) & TRUE
-;
-	; GET CURRENT VALUE OF PSG ENABLE REGISTER
-	LD	A,7
-	OUT	(NABU_RSEL),A
-	NOP
-	IN	A,(NABU_RDAT)
-	LD	B,A
-;
-	; GET CURRENT VALUE OF PSG ENABLE REGISTER
-	LD	A,7
-	OUT	(NABU_RSEL),A
-	NOP
-	IN	A,(NABU_RDAT)
-	LD	C,A
-;
-	; DUMP IT
-	CALL	PC_ASTERISK
-	LD	A,B
-	CALL	PRTHEXBYTE
-	LD	A,C
-	CALL	PRTHEXBYTE
-	CALL	PC_ASTERISK
 ;
+#IF FALSE
+	LD	DE,$0123
+	LD	HL,$4567
+	LD	B,BF_DSKYSHOWHEX
+	CALL	DSKY_DISPATCH
+	CALL	LDELAY
+	CALL	LDELAY
+	LD	DE,$89AB
+	LD	HL,$CDEF
+	LD	B,BF_DSKYSHOWHEX
+	CALL	DSKY_DISPATCH
+	CALL	LDELAY
+	CALL	LDELAY
 #ENDIF
-
-
 ;
 ;--------------------------------------------------------------------------------------------------
 ; IO PORT SCAN
@@ -2840,13 +3066,24 @@ HB_Z280BUS:
 HB_Z280BUS1:
 	PRTS("MHz$")			; SUFFIX
 #ENDIF
+
+#IF (CPUFAM == CPU_EZ80)
+	CALL	EZ80_RPT_FIRMWARE
+#ENDIF
+
 ;
 ;--------------------------------------------------------------------------------------------------
 ; DISPLAY CPU CONFIGURATION
 ;--------------------------------------------------------------------------------------------------
 ;
 	CALL	NEWLINE
+;
+; DISPLAY MEMORY TIMINGS
+;
+#IF (CPUFAM == CPU_EZ80)
+	CALL	EZ80_RPT_TIMINGS
 
+#ELSE
 #IF (CPUFAM == CPU_Z280)
 	LD	A,Z280_MEMLOWAIT
 	CALL	PRTDECB
@@ -2865,6 +3102,13 @@ HB_Z280BUS1:
 	CALL	PRTSTRD
 	.TEXT	" MEM W/S, $"
 #ENDIF
+#ENDIF ; CPUFAM = CPU_EZ80
+;
+; DISPLAY I/O TIMINGS
+;
+#IF (CPUFAM == CPU_EZ80)
+	; ALREADY REPORTED BY DRIVER
+#ELSE
 	LD	A,1
 #IF (CPUFAM == CPU_Z180)
 	LD	A,Z180_IOWAIT + 1
@@ -2883,6 +3127,10 @@ HB_Z280BUS1:
 	CALL	PRTSTRD
 	.TEXT	" INT W/S$"
 #ENDIF
+#ENDIF //CPUFAM = CPU_EZ80
+;
+; DISPLAY INTERRUPT MODE
+;
 #IF (INTMODE > 0)
 	CALL	PRTSTRD
 	.TEXT	", INT MODE $"
@@ -2987,6 +3235,11 @@ HB_Z280BUS1:
 	LDCTL	HL,(C)
 	CALL	PRTHEXWORDHL
 	CALL	PC_SPACE
+	PRTS("ISR=$")
+	LD	C,Z280_ISR		; INTERRUPT STATUS REGISTER
+	LDCTL	HL,(C)
+	CALL	PRTHEXWORDHL
+	CALL	PC_SPACE
 	PRTS("BTCR=$")
 	LD	C,Z280_BTCR		; BUS TIMING AND CONTROL REGISTER
 	LDCTL	HL,(C)
@@ -3125,6 +3378,32 @@ IS_REC_M1:
 	CALL	CALLLIST
 ;
 ;--------------------------------------------------------------------------------------------------
+; NV-SWITCH INITITIALISATION
+; Requires functional RTC NVR
+;--------------------------------------------------------------------------------------------------
+;
+NVR_INIT:
+	; Check for the existence of NV RAM by attempting to read a byte
+	LD	B,BF_RTCGETBYT		; GET RTC BYTE
+	LD	C,0			; FIRST Byte address in RTC
+	CALL	RTC_DISPATCH		; CALL RTC
+	JR	NZ,NVR_INIT_END		; GET BYTE Failed; Noting to do, HCB is correct. Status =0
+	;
+	CALL	NVSW_READ		; read the full data into hcb
+	JR	NZ, NVR_INIT_DEF	; failed to correclty read data
+	;
+	CALL	NVSW_CHECKSUM		; checksum calc into A
+	LD	HL,CB_SWITCHCK		; address of HCB value
+	CP	(HL)			; compare Caculated Check, with hcb Check Value
+	JR	Z,NVR_INIT_END		; The same so success
+NVR_INIT_DEF:
+	; failed Read or Checksum
+	CALL	NVSW_DEFAULTS		; set defaults into HCB, which include the "W" first byte
+	LD 	HL,CB_SWITCHES		; which is incorrect, need the value of 1
+	LD	(HL),1			; to indicate we while not inited, we do have NVRAM
+NVR_INIT_END:
+;
+;--------------------------------------------------------------------------------------------------
 ; WATCHDOG ACTIVATION
 ;--------------------------------------------------------------------------------------------------
 ;
@@ -3217,6 +3496,28 @@ HB_WDZ:
 	JR	NZ,INITSYS3		; NOT SET, BYPASS CONSOLE SWITCH
   #ENDIF
 ;
+  #IF (PLATFORM == PLT_FZ80)
+	; IOBYTE: XXXXXVVC
+	;              00-	FORCE ONBOARD VGA/PS2 KBD (FV)
+	;              --1	FORCE PROPELLER CONSOLE (SCON)
+	;              110	NORMAL USB SERIAL BOOT
+	;
+	; WE ASSUME THAT THE ONBOARD VGA (FV) IS ALWAYS DETECTED AND
+	; WILL BE THE CURRENT CRTDEV.  SCON IS ASSUMED TO BE THE
+	; DEVICE AT CRTDEV + 1.  THESE ARE REASONABLE ASSUMPTIONS
+	; UNLESS THE DRIVER DETECTION OR DRIVER ORDER IS CHANGED.
+	IN	A,($36)			; GET IO BYTE
+	AND	%00000110		; ISOLATE BITS
+	JR	Z,HB_CRTACT		; FORCE ONBOARD CRT
+	IN	A,($36)			; GET IO BYTE
+	AND	%00000001		; ISOLATE BIT
+	JR	Z,INITSYS3		; NORMAL USB SERIAL BOOT
+	LD	A,(CB_CRTDEV)		; GET CRT DEV
+	INC	A			; SWITCH FROM FV -> SCON
+	LD	(CB_CRTDEV),A		; SAVE IT AND DO CONSOLE SWITCH
+  #ENDIF
+;
+HB_CRTACT:
 	LD	A,(CB_CRTDEV)		; GET CRT DISPLAY DEVICE
 	LD	(HB_NEWCON),A		; AND QUEUE TO SWITCH
 ;
@@ -3278,7 +3579,7 @@ HB_FP2:
 	LD	B,A			; MOVE TO B
 	LD	A,SECCON		; GET SEC CONSOLE SETTING
 	CP	$FF			; $FF MEANS USE INCREMENT
-	JR	NZ,HB_FP3		; BYPASS IF NOT $FF 
+	JR	NZ,HB_FP3		; BYPASS IF NOT $FF
 ;
 	; INCREMENT CONSOLE UNIT
 	LD	A,(HB_NEWCON)		; GET NEW CONSOLE UNIT
@@ -3446,11 +3747,12 @@ DBG_NOTE:
 ;
 #ENDIF
 ;
-; DIAGNOSTIC ROUTINE TO PLAY A BEEP
-;
-#IFDEF TESTING
-	CALL	SND_BEEP
-#ENDIF
+	; MAKE A LITTLE NOISE...
+	LD	B,BF_SNDBEEP		; HBIOS BEEP FUNCTION
+	LD	C,0			; SOUND UNIT 0
+	LD	A,(SND_CNT)		; GET SOUND UNIT COUNT
+	OR	A			; CHECK FOR ZERO
+	CALL	NZ,HB_DISPATCH		; DO IT IF WE HAVE A SOUND UNIT
 ;
 ;--------------------------------------------------------------------------------------------------
 ; TRANSITION TO USER LAND
@@ -3527,6 +3829,9 @@ HB_INITRLEN	.EQU	(($ - HB_INIT_REC) / 2)
 ;
 HB_PCINITTBL:
 ;
+#IF (SSERENABLE)
+	.DW	SSER_PREINIT
+#ENDIF
 #IF (ASCIENABLE)
 	.DW	ASCI_PREINIT
 #ENDIF
@@ -3542,18 +3847,12 @@ HB_PCINITTBL:
 #IF (SIOENABLE)
 	.DW	SIO_PREINIT
 #ENDIF
+#IF (EZ80UARTENABLE)
+	.DW	EZUART_PREINIT
+#ENDIF
 #IF (ACIAENABLE)
 	.DW	ACIA_PREINIT
 #ENDIF
-#IF (PIOENABLE)
-	.DW	PIO_PREINIT
-#ENDIF
-#IF LPTENABLE)
-	.DW	LPT_PREINIT
-#ENDIF
-#IF (PIO_4P | PIO_ZP)
-	.DW	PIO_PREINIT
-#ENDIF
 #IF (UFENABLE)
 	.DW	UF_PREINIT
 #ENDIF
@@ -3561,6 +3860,12 @@ HB_PCINITTBL:
 	.DW	TMS_PREINIT
 #ENDIF
 	.DW	TERM_PREINIT		; ALWAYS DO THIS ONE
+#IF (PIOENABLE)
+	.DW	PIO_PREINIT
+#ENDIF
+#IF (PIO_4P | PIO_ZP)
+	.DW	PIO_PREINIT
+#ENDIF
 ;
 HB_PCINITTBLLEN	.EQU	(($ - HB_PCINITTBL) / 2)
 ;
@@ -3579,16 +3884,22 @@ HB_INITTBL:
 #IF (PCFENABLE)
 	.DW	PCF_INIT
 #ENDIF
-#IF (DSKYENABLE)
-  #IF (ICMENABLE)
+;;;#IF (DSKYENABLE)
+#IF (ICMENABLE)
 	.DW	ICM_INIT
-  #ENDIF
-  #IF (PKDENABLE)
+#ENDIF
+#IF (PKDENABLE)
 	.DW	PKD_INIT
-  #ENDIF
-  #IF (H8PENABLE)
+#ENDIF
+;;;#ENDIF
+#IF (LCDENABLE)
+	.DW	LCD_INIT
+#ENDIF
+#IF (H8PENABLE)
 	.DW	H8P_INIT
-  #ENDIF
+#ENDIF
+#IF (GM7303ENABLE)
+	.DW	GM7303_INIT
 #ENDIF
 #IF (PLATFORM == PLT_NABU)
 	.DW	NABU_INIT
@@ -3605,6 +3916,9 @@ HB_INITTBL:
 #IF (SPKENABLE)
 	.DW	SP_INIT			; AUDIBLE INDICATOR OF BOOT START
 #ENDIF
+#IF (SSERENABLE)
+	.DW	SSER_INIT
+#ENDIF
 #IF (ASCIENABLE)
 	.DW	ASCI_INIT
 #ENDIF
@@ -3620,18 +3934,12 @@ HB_INITTBL:
 #IF (SIOENABLE)
 	.DW	SIO_INIT
 #ENDIF
+#IF (EZ80UARTENABLE)
+	.DW	EZUART_INIT
+#ENDIF
 #IF (ACIAENABLE)
 	.DW	ACIA_INIT
 #ENDIF
-#IF (PIOENABLE)
-	.DW	PIO_INIT
-#ENDIF
-#IF (LPTENABLE)
-	.DW	LPT_INIT
-#ENDIF
-#IF (PIO_4P | PIO_ZP)
-	.DW	PIO_INIT
-#ENDIF
 #IF (UFENABLE)
 	.DW	UF_INIT
 #ENDIF
@@ -3653,9 +3961,19 @@ HB_INITTBL:
 #IF (DS7RTCENABLE)
 	.DW	DS7RTC_INIT
 #ENDIF
+#IF (DS5RTCENABLE)
+	.DW	DS5RTC_INIT
+#ENDIF
 #IF (RP5RTCENABLE)
 	.DW	RP5RTC_INIT
 #ENDIF
+#IF (EZ80RTCENABLE)
+	.DW	EZ80RTC_INIT
+#ENDIF
+#IF (CPUFAM == CPU_EZ80)
+	; INITALISE ONE OF THE SUPPORTED SYSTEM TIMER TICKS DRIVERS
+	.DW	EZ80_TMR_INIT
+#ENDIF
 #IF (VDUENABLE)
 	.DW	VDU_INIT
 #ENDIF
@@ -3677,6 +3995,21 @@ HB_INITTBL:
 #IF (VRCENABLE)
 	.DW	VRC_INIT
 #ENDIF
+#IF (FVENABLE)
+	.DW	FV_INIT
+#ENDIF
+#IF (SCONENABLE)
+	.DW	SCON_INIT
+#ENDIF
+#IF (LPTENABLE)
+	.DW	LPT_INIT
+#ENDIF
+#IF (PIOENABLE)
+	.DW	PIO_INIT
+#ENDIF
+#IF (PIO_4P | PIO_ZP)
+	.DW	PIO_INIT
+#ENDIF
 #IF (DMAENABLE)
 	.DW	DMA_INIT
 #ENDIF
@@ -3710,18 +4043,15 @@ HB_INITTBL:
 #IF (SYQENABLE)
 	.DW	SYQ_INIT
 #ENDIF
+#IF (CHENABLE)
+	.DW	CH_INIT
+#ENDIF
 #IF (PRPENABLE)
 	.DW	PRP_INIT
 #ENDIF
 #IF (PPPENABLE)
 	.DW	PPP_INIT
 #ENDIF
-#IF (SCONENABLE)
-	.DW	SCON_INIT
-#ENDIF
-#IF (CHENABLE)
-	.DW	CH_INIT
-#ENDIF
 #IF (ESPENABLE)
 	.DW	ESP_INIT
 #ENDIF
@@ -3786,10 +4116,13 @@ HB_DISPATCH1:
 	JP	C,DSKY_DISPATCH
 	CP	BF_VDA + $10		; $40-$4F: VIDEO DISPLAY ADAPTER
 	JP	C,VDA_DISPATCH
-	CP	BF_SND + $08		; $50-$58: SOUND DRIVERS
+	CP	BF_SND + $10		; $50-$5F: SOUND DRIVERS
 	JP	C,SND_DISPATCH
-	CP	BF_SYS			; SKIP TO BF_SYS VALUE AT $F0
-	JR	C,HB_DISPERR		; ERROR IF LESS THAN BF_SYS
+	; GAP TO E0
+	CP	BF_EXT			; SKIP TO BF_EXT VALUE AT $E0
+	JR	C,HB_DISPERR		; ERROR IF LESS THAN BF_EXT
+	CP	BF_EXT + $10		; $E0-$EF: EXTENDED
+	JP	C,EXT_DISPATCH
 	JP	SYS_DISPATCH		; OTHERWISE SYS CALL
 	; FALL THRU
 ;
@@ -3852,6 +4185,24 @@ CIO_SIZ		.EQU	CIO_MAX * 4	; EACH ENTRY IS 4 BYTES
 CIO_CNT		.DB	0		; ENTRY COUNT PREFIX
 CIO_TBL		.FILL	CIO_SIZ,0	; SPACE FOR ENTRIES
 ;
+; CRT TYPE CHAR DEVICES CALL THIS TO REGISTER THAT THEY WANT TO BE THE
+; DEFAULT CRT DEVICE.  THIS ROUTINE WILL SET CB_CRTDEV WHEN CALLED THE
+; FIRST TIME.  SUBSEQUENT CALLS ARE IGNORED.  THIS ENSURES THAT THE
+; *FIRST* CRT DEVICE WINS.
+;
+CIO_SETCRT:
+	PUSH	AF			; SAVE INCOMING CRT DEV NUM
+	LD	A,(CB_CRTDEV)		; GET CURRENT CRT DEV NUM
+	INC	A			; $FF -> $00
+	JR	NZ,CIO_SETCRT_Z		; IF ALREADY SET, LEAVE IT ALONE
+	POP	AF			; RESTORE AF
+	LD	(CB_CRTDEV),A		; SAVE CRT DEV NUM
+	RET				; AND DONE
+;
+CIO_SETCRT_Z:
+	POP	AF			; RESTORE AF
+	RET				; AND DONE
+;
 ;--------------------------------------------------------------------------------------------------
 ; DISK I/O DEVICE FUNCTION DISPATCHER
 ;--------------------------------------------------------------------------------------------------
@@ -4155,6 +4506,7 @@ HB_IOBNK	.DB	0		; CURRENT IO BUFFER BANK ID
 HB_DSKCMD:
 HB_DSKUNIT	.DB	0		; CURRENT DISK UNIT
 HB_DSKFUNC	.DB	0		; CURRENT DISK FUNCTION
+HB_DSKADR	.FILL	4,0		; CURRENT DISK BLOCK ADDRESS
 ;
 ;--------------------------------------------------------------------------------------------------
 ; DSKY DISK ACTIVITY MONITOR
@@ -4174,55 +4526,32 @@ HB_DSKFUNC	.DB	0		; CURRENT DISK FUNCTION
 ;   HL: ADDRESS OF 32-BIT SECTOR NUMBER (LITTLE-ENDIAN)
 ;   ALL REGISTERS PERSERVED
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
-;
+#IF (DSKYDSKACT)
 HB_DSKACT:
+;
 	; SAVE EVERYTHING
 	PUSH	AF
 	PUSH	BC
 	PUSH	DE
 	PUSH	HL
 ;
-	; COPY VALUE TO LOCAL HEXBUF
+	; COPY VALUE TO LOCAL HB_DSKADR
 	CALL	LD32
 ;
 HB_DSKACT1:
-	LD	BC,DSKY_HEXBUF
+	LD	BC,HB_DSKADR
 	CALL	ST32
 ;
-	; USE DISK UNIT NUMBER FOR MSB
-	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
-	LD	(DSKY_HEXBUF+3),A	; REPLACE HIGH BYTE W/ DISK #
-;
-	; CONVERT TO SEGMENT DISPLAY
-	LD	HL,DSKY_HEXBUF		; INPUT POINTER
-	LD	DE,DSKY_BUF		; TEMP BUF FOR OUTPUT
-	CALL	DSKY_BIN2SEG		; CONVERT TO SEG DISPLAY
-;
-	; DECIMAL POINT FOR DISK UNIT SEPARATION
-	LD	HL,DSKY_BUF+1		; SECOND CHAR OF DISP
-	SET	7,(HL)			; TURN ON DECIMAL PT
-;
-	; DECIMAL POINT TO INDICATE WRITE ACTION
-	LD	A,(HB_DSKFUNC)		; GET CURRENT I/O FUNCTION
-	CP	BF_DIOWRITE		; IS IT A WRITE?
-	JR	NZ,HB_DSKACT2		; IF NOT, SKIP
-	LD	HL,DSKY_BUF+7		; POINT TO CHAR 7
-	SET	7,(HL)			; SET WRITE DOT
-;
-HB_DSKACT2:
-	; UPDATE DISPLAY
-	LD	HL,DSKY_BUF		; SEG DISPLAY BUF TO HL
-	LD	B,BF_DSKYSHOWSEG	; SHOW SEG FUNCTION
-	CALL	DSKY_DISPATCH		; DO IT
+	LD	B,BF_DSKYEVENT
+	LD	C,DSKY_EVT_DSKACT
+	CALL	DSKY_DISPATCH
 ;
 	; CLEAN UP AND GO AWAY
 	POP	HL
 	POP	DE
 	POP	BC
 	POP	AF
-	RET				; DONE
+	JR	HB_DSKACT_Z		; DONE
 ;
 ; THIS IS THE CHS VARIANT OF THE ABOVE.  THIS IS USED BY CHS ORIENTED
 ; DISK DRIVERS (BASICALLY JUST FLOPPY).
@@ -4244,7 +4573,15 @@ HB_DSKACTCHS:
 	EX	DE,HL
 	JR	HB_DSKACT1
 ;
-  #ENDIF
+HB_DSKACT_Z:
+	RET
+;
+#ELSE
+;
+HB_DSKACT:
+HB_DSKACTCHS:
+	RET
+;
 #ENDIF
 ;
 ;--------------------------------------------------------------------------------------------------
@@ -4269,6 +4606,9 @@ RTC_DISPERR:
 ; WILL ONLY SAVE THE FIRST ADDRESS SET
 ;
 RTC_SETDISP:
+	LD	A,(RTC_DISPACT)		; GET ACTIVE FLAG
+	OR	A			; IS IT ACTIVE?
+	RET	NZ			; ABORT IF ALREADY ACTIVE
 	LD	(RTC_DISPADR),BC	; SAVE THE ADDRESS
 	OR	$FF			; FLAG ACTIVE VALUE
 	LD	(RTC_DISPACT),A		; SAVE IT
@@ -4299,6 +4639,9 @@ DSKY_DISPERR:
 ; WILL ONLY SAVE THE FIRST ADDRESS SET
 ;
 DSKY_SETDISP:
+	LD	A,(DSKY_DISPACT)	; GET ACTIVE FLAG
+	OR	A			; IS IT ACTIVE?
+	RET	NZ			; ABORT IF ALREADY ACTIVE
 	LD	(DSKY_DISPADR),BC	; SAVE THE ADDRESS
 	OR	$FF			; FLAG ACTIVE VALUE
 	LD	(DSKY_DISPACT),A	; SAVE IT
@@ -4384,7 +4727,7 @@ SND_ADDENT:
 ;	WORD	DRIVER FUNCTION TABLE ADDRESS
 ;	WORD	UNIT SPECIFIC DATA (TYPICALLY A DEVICE INSTANCE DATA ADDRESS)
 ;
-SND_FNCNT	.EQU	8		; NUMBER OF SND FUNCS (FOR RANGE CHECK)
+SND_FNCNT	.EQU	9		; NUMBER OF SND FUNCS (FOR RANGE CHECK)
 SND_MAX		.EQU	5		; UP TO 5 UNITS
 SND_SIZ		.EQU	SND_MAX * 4	; EACH ENTRY IS 4 BYTES
 ;
@@ -4397,47 +4740,61 @@ SND_TBL		.FILL	SND_SIZ,0	; SPACE FOR ENTRIES
 ;   SPEAKER BEEP ROUTINE
 ;--------------------------------------------------------------------------------------------------
 ;
-;;; RELOCATE
-;
-; ROUTINE TO BEEP THE DEFAULT SOUND UNIT
-; NEED TO CHECK FOR EXISTENCE OF SOUND UNIT
+; ROUTINE TO BEEP A SOUND UNIT
+; THE SOUND DRIVERS CAN DEFER THEIR BEEP FUNCTION TO THIS FUNCTION
+; ON ENTRY, B = SOUND UNIT
 ; WHICH CHANNEL SHOULD BE USED?  IS THERE A GOOD DEFAULT CHANNEL?
 ;
 SND_BEEP:
-	; CHECK FOR AT LEAST 1 SOUND DEVICE
-	LD	A,(SND_CNT)		; GET SOUND UNIT COUNT
-	OR	A			; CHECK FOR ZERO
-	RET	Z			; BAIL OUT IF NO SOUND UNITS
-	
-	; PLAY A BEEP ON SOUND DEVICE UNIT 0
+	; RESET THE SOUND DEVICE TO START
 	LD	B,$50			; SOUND RESET FUNCTION
-	LD	C,0			; SOUND UNIT NUMBER
-	CALL	SND_DISPATCH		; DO IT
+	CALL	SND_BEEP_DISP		; DO IT
+;
+	; SET VOLUME TO MAX
 	LD	B,$51			; VOLUME
-	LD	C,0			; SOUND UNIT NUMBER
 	LD	L,$FF			; MAX
-	CALL	SND_DISPATCH		; DO IT
+	CALL	SND_BEEP_DISP		; DO IT
+;
+	; SET NOTE TO PLAY
 	LD	B,$53			; SELECT NOTE
-	LD	C,0			; SOUND UNIT NUMBER
-	;LD	HL,0			; A0#
 	LD	HL,244			; B5 (CLOSE TO 1 KHZ)
-	CALL	SND_DISPATCH		; DO IT
-	;LD	B,$56			; DURATION
-	;LD	C,0			; SOUND UNIT NUMBER
-	;LD	HL,500			; 1/2 SECOND
-	;CALL	SND_DISPATCH		; DO IT
+	CALL	SND_BEEP_DISP		; DO IT
+;
+	; START PLAYING THE SOUND
 	LD	B,$54			; PLAY SOUND
-	LD	C,0			; SOUND UNIT NUMBER
 	LD	D,0			; CHANNEL 0
-	CALL	SND_DISPATCH		; DO IT
-	LD	DE,15625		; PLAY FOR 1/4 SECOND
+	CALL	SND_BEEP_DISP		; DO IT
+;
+	; WAIT A BIT FOR SOUND TO PLAY
+	LD	DE,23436		; PLAY FOR 1/3 SECOND
 	CALL	VDELAY			; WAIT WHILE TONE IS PLAYED
-	;CALL	LDELAY			; LET SOUND PLAY 1/2 SECOND
+;
 	LD	B,$50			; SOUND RESET FUNCTION
-	LD	C,0			; SOUND UNIT NUMBER
-	CALL	SND_DISPATCH		; DO IT
+	CALL	SND_BEEP_DISP		; DO IT
+;
+	XOR	A			; SIGNAL SUCCESS
 	RET				; DONE
 ;
+SND_BEEP_DISP:
+	; CALL SOUND DISPATCHER PRESERVING BC ACROSS CALL
+	PUSH	BC
+	CALL	SND_DISPATCH
+	POP	BC
+	RET
+;
+;--------------------------------------------------------------------------------------------------
+;   EXTENDED FUNCTION DISPATCHER
+;--------------------------------------------------------------------------------------------------
+;
+;   B: FUNCTION
+;
+EXT_DISPATCH:
+	LD	A,B			; GET REQUESTED FUNCTION
+	AND	$0F			; ISOLATE SUB-FUNCTION
+	JP	Z,EXT_SLICE		; $E0
+	DEC	A
+	JP	HB_DISPERR		; ERROR COULD NOT FIND FUNCTION
+;
 ;--------------------------------------------------------------------------------------------------
 ;   SYSTEM FUNCTION DISPATCHER
 ;--------------------------------------------------------------------------------------------------
@@ -4473,10 +4830,402 @@ SYS_DISPATCH:
 	DEC	A
 	JP	Z,SYS_INT		; $FC
 	DEC	A
+	JP	HB_DISPERR		; ERROR COULD NOT FIND FUNCTION
 ;
 HB_DISP_END	.EQU	$
 ;
 ;==================================================================================================
+;   Z280 INTERRUPT VECTOR TABLE
+;==================================================================================================
+;
+HB_Z280IVT_BEG	.EQU	$
+;
+; THE Z280 IVT MUST BE ON A 4K BOUNDARY.  IT HAS BEEN LOCATED
+; HERE IN AN EFFORT TO MINIMIZE WASTED SPACE.  THERE SHOULD BE
+; A LITTLE LESS THAN 4K OF CODE ABOVE.
+;
+#IF (MEMMGR == MM_Z280)
+;
+Z280_IVT_SLACK_ORG	.EQU	$
+	ALIGN($1000)
+Z280_IVT_SLACK		.EQU	$ - Z280_IVT_SLACK_ORG
+	.ECHO	"Z280 IVT SLACK = "
+	.ECHO	Z280_IVT_SLACK
+	.ECHO	" bytes.\n"
+;
+Z280_IVT:
+	.DW	0, 0			; RESERVED
+	.DW	0			; NMI MSR
+	.DW	0			; NMI VECTOR
+	.DW	$0000			; INT A MSR
+	.DW	Z280_BADINT		; INT A VECTOR
+	.DW	$0000			; INT B MSR
+	.DW	Z280_BADINT		; INT B VECTOR
+	.DW	$0000			; INT C MSR
+	.DW	Z280_BADINT		; INT C VECTOR
+	.DW	$0000			; COUNTER/TIMER 0 MSR
+	.DW	Z280_BADINT		; COUNTER/TIMER 0 VECTOR
+	.DW	$0000			; COUNTER/TIMER 1 MSR
+	.DW	Z280_BADINT		; COUNTER/TIMER 1 VECTOR
+	.DW	0, 0			; RESERVED
+	.DW	$0000			; COUNTER/TIMER 2 MSR
+	.DW	Z280_BADINT		; COUNTER/TIMER 2 VECTOR
+	.DW	$0000			; DMA CHANNEL 0 MSR
+	.DW	Z280_BADINT		; DMA CHANNEL 0 VECTOR
+	.DW	$0000			; DMA CHANNEL 1 MSR
+	.DW	Z280_BADINT		; DMA CHANNEL 1 VECTOR
+	.DW	$0000			; DMA CHANNEL 2 MSR
+	.DW	Z280_BADINT		; DMA CHANNEL 2 VECTOR
+	.DW	$0000			; DMA CHANNEL 3 MSR
+	.DW	Z280_BADINT		; DMA CHANNEL 3 VECTOR
+	.DW	$0000			; UART RECEIVER MSR
+	.DW	Z280_BADINT		; UART RECEIVER VECTOR
+	.DW	$0000			; UART TRANSMITTER MSR
+	.DW	Z280_BADINT		; UART TRANSMITTER VECTOR
+	.DW	$0000			; SINGLE STEP TRAP MSR
+	.DW	Z280_SSTEP		; SINGLE STEP TRAP VECTOR
+	.DW	$0000			; BREAK ON HALT TRAP MSR
+	.DW	Z280_BRKHLT		; BREAK ON HALT TRAP VECTOR
+	.DW	$0000			; DIVISION EXCEPTION TRAP MSR
+	.DW	Z280_DIVEXC		; DIVISION EXCEPTION TRAP VECTOR
+	.DW	$0000			; STACK OVERFLOW WARNING TRAP MSR
+	.DW	Z280_STKOVR		; STACK OVERFLOW WARNING TRAP VECTOR
+	.DW	$0000			; ACCESS VIOLATION TRAP MSR
+	.DW	Z280_ACCVIO		; ACCESS VIOLATION TRAP VECTOR
+	.DW	$0000			; SYSTEM CALL TRAP MSR
+	.DW	Z280_SYSCALL		; SYSTEM CALL TRAP VECTOR
+	.DW	$0000			; PRIVILEGED INSTRUCTION TRAP MSR
+	.DW	Z280_PRIVINST		; PRIVILEGED INSTRUCTION TRAP VECTOR
+	.DW	$0000			; EPU <- MEMORY EXTENDED INSTRUCTION TRAP MSR
+	.DW	$0000			; EPU <- MEMORY EXTENDED INSTRUCTION TRAP VECTOR
+	.DW	$0000			; MEMORY <- EPU EXTENDED INSTRUCTION TRAP MSR
+	.DW	$0000			; MEMORY <- EPU EXTENDED INSTRUCTION TRAP VECTOR
+	.DW	$0000			; A <- EPU EXTENDED INSTRUCTION TRAP MSR
+	.DW	$0000			; A <- EPU EXTENDED INSTRUCTION TRAP VECTOR
+	.DW	$0000			; EPU INTERNAL OPERATION EXTENDED INSTRUCTION TRAP MSR
+	.DW	$0000			; EPU INTERNAL OPERATION EXTENDED INSTRUCTION TRAP VECTOR
+	.DW	0, 0			; RESERVED
+	.DW	0, 0			; RESERVED
+	; PROGRAM COUNTER VALUES FOR NMI/INTA (16)
+	.DW	HBX_IV00
+	.DW	HBX_IV01
+	.DW	HBX_IV02
+	.DW	HBX_IV03
+	.DW	HBX_IV04
+	.DW	HBX_IV05
+	.DW	HBX_IV06
+	.DW	HBX_IV07
+	.DW	HBX_IV08
+	.DW	HBX_IV09
+	.DW	HBX_IV0A
+	.DW	HBX_IV0B
+	.DW	HBX_IV0C
+	.DW	HBX_IV0D
+	.DW	HBX_IV0E
+	.DW	HBX_IV0F
+;
+	; THE REMAINDER OF THE Z280 IVT IS TRUNCATED HERE BECAUSE IT
+	; TAKES A BUNCH OF SPACE AND IS NOT USED.  WE SUPPORT ONLY
+	; 16 VECTORED INTERRUPTS AND THEY MUST BE CONNECTED TO INTA.
+;
+#ENDIF
+;
+HB_Z280IVT_END	.EQU	$
+;
+;==================================================================================================
+; EXTENSION API FUNCTIONS
+;==================================================================================================
+;
+HB_EXTAPI_BEG	.EQU	$
+;
+;--------------------------------------------------------------------------------------------------
+; SLICE CALCULATE - GET DISK EXTENDED HARD DISK MEDIA INFORMATION
+;--------------------------------------------------------------------------------------------------
+;   This function is specificly intended for Hard Drives, where it will scan
+;   the partition table and return a Media ID, including hd1k (MID_HDNEW).
+;   It will also return the absolute LBA offset of the first sector in the slice
+;   If the slice number is invalid (wont fit) the Status will return an error
+;   If the Unit is not a hard disk the Media ID will be returned and slice ignored.
+;--------------------------------------------------------------------------------------------------
+;   ENTRY:
+;     B: FUNCTION       0xE0   EXT_SLICE
+;     D: DISK UNIT, preferably for a hard disk.
+;     E: SLICE, ignored if media is not a hard disk
+;   RETURNS:
+;     A: STATUS, -6 (parameter out of range) - if Slice is invalid
+;	Other errors Include ERR_NOUNIT, ERR_NOMEDIA,
+;	If any error is raised the other return values are undefined
+;     B: DEVICE ATTRIBUTES, as reported by DIODEVICE
+;     C: MEDIAID, including MID_HDNEW if hd1k partition is found
+;     DEHL: LBAOFFSET, of Slice if valid, 0 otherwise.
+;--------------------------------------------------------------------------------------------------
+;
+SLICE_SLICE	.DB	0		; SLICE ARGUMENT (E)
+SLICE_UNIT	.DB	0		; UNIT ARGUMENT  (D)
+SLICE_DEVATT	.DB	0		; DEVICE ATTRIBUTES
+SLICE_MID	.DB	0		; DISCOVERED MEDIAID
+;
+SLICE_WRKSTA	.EQU	$
+SLICE_LBAOFF	.FILL 4,0		; START OF PARTITION / SLICE (SECTORS)
+SLICE_LBASIZ	.FILL 4,0		; SIZE OF MEDIA / PARTITION (SECTORS)
+SLICE_SPS	.DW	0		; DISCOVERED SECTORS PER SLICE (16BIT)
+SLICE_FND	.DB	0		; DID WE FIND A NON CPM PARTITION
+SLICE_WRKSIZ	.EQU	$ - SLICE_WRKSTA ; SIZE OF WORKING DATA
+;
+EXT_SLICE:
+	; SAVE CALL ARGUMENTS
+	LD	(SLICE_SLICE),DE	; STORES DE -> SLICE/UNIT PARAMETERS
+
+	; READ DEVICE INFORMATION USING DIODEVICE FUNCTION
+	LD	A,(SLICE_UNIT)
+	LD	C,A			; UNIT ID PARAMETER INTO C
+	LD	B,BF_DIODEVICE		; DRIVER FUNCTION = DISK MEDIA
+	CALL	DIO_DISPATCH		; CALL DIO TO GET DEVICE ATTRIBUTES
+	RET	NZ			; ABORT ON ERROR
+;
+	; DEVICE ATTRIBUTES IN C
+	LD	A,C
+	LD	(SLICE_DEVATT),A	; STORE DEVICE ATTRIBUTES
+;
+	; DETERMINE MEDIA IN DRIVE USING DIOMEDIA FUNCTION
+	LD	A,(SLICE_UNIT)
+	LD	C,A			; UNIT ID PARAMETER INTO C
+	LD	E,1			; ENABLE MEDIA CHECK/DISCOVERY
+	LD	B,BF_DIOMEDIA		; DRIVER FUNCTION = DISK MEDIA
+	CALL	DIO_DISPATCH		; CALL DIO TO GET MEDIAID (RESULT IN E)
+	RET	NZ			; ABORT ON ERROR
+;
+	; CHECK MEDIA TYPE, ONLY HD IS APPLICABLE
+	LD	A,E			; RESULTANT MEDIA ID TO ACCUM
+	LD	(SLICE_MID),A		; INIT VALUE, MAY BE USED LATER
+	OR	A			; SET FLAGS
+	JR	Z,EXT_SLICE1A		; BAIL IF NO MEDIA
+	CP	MID_HD			; IS IT A HARD DISK
+	JR	Z,EXT_SLICE1B		; IS HD, CONTINUE TO PROCESS HD
+;
+	; NOT A HARD DISK, CHECK SLICE = 0
+	LD	A,(SLICE_SLICE)		; GET THE SLICE
+	OR	A			; SET FLAGS
+	JP	NZ,EXT_SLICE5C		; SLICE NOT ZERO - SIGNAL ERROR AND RETURN
+;
+EXT_SLICE1A:
+	; RETURN MEDIA ID (NOT HD) WITH SUCCESS
+	LD	DE,0			; LBA VALUE WILL BE ZERO
+	LD	HL,0
+	JP	EXT_SLICE6A		; RETURN SUCCESS
+;
+EXT_SLICE1B:
+	; FOUND HD, NEED TO PROCESS MBR / PART TABLE
+	; CLEAR WORKING STORAGE
+	LD	HL,SLICE_WRKSTA		; HL SET TO FIRST BYTE
+	LD	(HL),0			; CLEAR FIRST BYTE
+	LD	D,H
+	LD	E,L
+	INC	DE			; DE SET TO SECOND BYTE
+	LD	BC,SLICE_WRKSIZ - 1	; NUMBER OF LDIR COPIES
+	LDIR				; BLOCK COPY TO CLEAR WORKING STORAGE
+;
+	; SEEK TO SECTOR ZERO (MBR TABLE)
+	LD	B,BF_DIOSEEK		; SEEK FUNCTION
+	LD	A,(SLICE_UNIT)		; GET UNIT
+	LD	C,A			; PUT IN C
+	LD	DE,$8000		; LBA SECTOR ZERO
+	LD	HL,0			; ASSUME LBA ACCESS FOR NOW
+	CALL	DIO_DISPATCH		; DO IT
+	RET	NZ			; ABORT ON ERROR
+;
+	; READ SECTOR ZERO (MBR TABLE)
+	LD	B,BF_DIOREAD		; READ FUNCTION
+	LD	A,(SLICE_UNIT)		; GET UNIT
+	LD	C,A			; PUT IN C
+	LD	A,(HB_CURBNK)		; GET CURRENT BANK ID
+	LD	D,A			; PUT IN D
+	LD	E,1			; SECTOR COUNT
+	LD	HL,HB_WRKBUF		; IO BUFFER TO USE
+	CALL	DIO_DISPATCH		; DO IT
+	RET	NZ			; ABORT ON ERROR
+;
+	; CHECK MBR OF DISK TO SEE IF IT HAS A PARTITION TABLE.
+	LD	HL,HB_WRKBUF		; DSKBUF ADR
+	LD	DE,$1FE			; OFFSET TO SIGNATURE
+	ADD	HL,DE			; POINT TO SIGNATURE
+	LD	A,(HL)			; GET FIRST BYTE
+	CP	$55			; CHECK FIRST BYTE
+	JR	NZ,EXT_SLICE3C		; NO MATCH, NO PART TABLE
+	INC	HL			; NEXT BYTE
+	LD	A,(HL)			; GET SECOND BYTE
+	CP	$AA			; CHECK SECOND BYTE
+	JR	NZ,EXT_SLICE3C		; NO MATCH, NO PART TABLE
+;
+	; FOUND PARTITION TABLE - LOOP AND PROCESS PARTITION TABLE
+	LD	HL,HB_WRKBUF		; DSKBUF ADR
+	LD	DE,$1BE+4		; OFFSET OF FIRST ENTRY PART TYPE
+	ADD	HL,DE			; POINT TO IT
+	LD	B,4			; FOUR ENTRIES IN PART TABLE LOOP
+EXT_SLICE2A:
+	LD	A,(HL)			; GET PART TYPE
+	LD	DE,4
+	ADD	HL,DE			; MOVE HL FWD TO GET TO LBA OFFSET
+	CP	$2E			; CP/M PARTITION?
+	JR	Z,EXT_SLICE3B		; HD1K, GRAB THE LBA OFFSET
+	CP	$00			; IS ANOTHER PARTITION TYPE, NOT CPM
+	JR	NZ,EXT_SLICE3A		; OTHER VALID PART TYPE
+EXT_SLICE2B:
+	LD	DE,12			; REMAINING SIZE TO GET TO NEXT PARTITION
+EXT_SLICE2C:
+	ADD	HL,DE			; BUMP TO NEXT PARTITION ENTRY - TYPE
+	DJNZ	EXT_SLICE2A		; LOOP THRU TABLE
+	JR	EXT_SLICE3C		; READ ALL - NO CP/M PARTITION FOUND
+;
+EXT_SLICE3A
+	; FOUND OTHER (NOT CPM) PARTITION
+	LD	A,(SLICE_FND)		; HAVE WE ALREADY FOUND PROCESSED NON CPM
+	OR	A			; PARTITION, AND CAPTURED ITS START SECTOR, SO
+	JR	NZ,EXT_SLICE2B		; IGNORE AND CONTINUTE TO NEXT PARTITION ENTRY
+;
+; NOTE THERE SLIGHT ISSUE HERE THAT WE ONLY CONSIDER THE FIRST NON-CPM PARTITION
+; TO GET THE UPPER SIZE OF MEDIA, IDEALLY WE WOULD CONSIDER ALL, AND TAKE THE LOWEWST
+; STARTING SECTOR - THIS IS A COMPRIMISE - OUT OF SEQUENCE PARTITIONS ARE UNLIKELY.
+;
+	PUSH	BC			; SAVE IT, BEING USED IN PARTITION LOOP
+        LD      BC,4  			; IF NOT ALREADY SET - COPY 4 BYTES
+        LD      DE,SLICE_LBASIZ		; FROM PARTION LBA OFFSET (HL) - TO WORKING LBA SIZE (DE)
+        LDIR    			; COPY 4 BYTES
+        POP	BC			; RESTORE
+;
+	LD	A,$FF
+	LD	(SLICE_FND),A		; SET FOUND FLAG, SO DONT PROCESS ANY OTHERS
+	LD	DE,8			; AND INC HL BY 8 TO GET TO NEXT PARITION
+	JR	EXT_SLICE2C		; CONTINUE TO NEXT PARTITION
+;
+EXT_SLICE3B:
+	; FOUND CP/M (HD1K) PARTITION - RECORD THIS
+	LD	A,MID_HDNEW		; DISCOVERED HD1K MEDIA
+	LD	(SLICE_MID),A		; STORE IT
+	LD	BC,SPS_HD1K		; DISCOVERED HD1K MEDIA
+	LD	(SLICE_SPS),BC		; STORE IT
+;
+	; CAPTURE THE LBA OFFSET AND SECTOR COUNT FROM PARTITION
+	; HL POINTS TO PART LBA OFFSET FIELD OF PART ENTRY
+	LD	DE,SLICE_LBAOFF		; LOC TO STORE OFFSET AND SIZE
+	LD	BC,8			; 8 BYTES - LBA OFFSET AND SIZE
+	LDIR				; COPY IT
+;
+	JR	EXT_SLICE4A		; CONTINUE AND COMPUTE THE SLICE
+;
+EXT_SLICE3C:
+	; NO PARTITION TABLE FOUND / NO CPM PARTITION
+	LD	A,(SLICE_SLICE)		; IF SLICE = 0, WE BOOT THE DISK ITSELF. IGNORE SLICE(S)
+	OR      A           		; SET FLAGS FOR SLICE ARGUMENT, IF SLICE==0
+	JR	Z,EXT_SLICE5Z		; BYPASS ALL CALCS / CHECKS - JUST BOOT THE DISK
+
+	; BOOT SLICE WITH LEGACY SPS
+	LD	BC,SPS_HD512		; WITH HD512 SECTORS PER SLICE
+	LD	(SLICE_SPS),BC		; STORE IT
+
+	; DID WE FIND AN OTHER (NOT CPM) PARTITION
+	LD	A,(SLICE_FND)		; HAVE WE ALREADY FOUND PROCESSED NON CPM
+	OR	A			; PARTITION, AND CAPTURED ITS START SECTOR, SO
+	JR	NZ,EXT_SLICE4A		; MEDIA SIZE IS KNOWN BASED ON START OF PARTITION
+
+	; FIND THE PHYSICAL CAPCITY OF THE MEDIA CALL (DIOCAP)
+	LD      B,BF_DIOCAP    		; HBIOS FUNC: TO GET DISK LBA CAPACITY
+        LD      A,(SLICE_UNIT)
+	LD      C,A            		; PUT DISK UNIT IN C FOR FUNC CALL
+	CALL	DIO_DISPATCH		; DO IT - RETURNS SIZE in DE:HL
+	RET	NZ			; ABORT ON ERROR
+
+	; UPDATE LBA SIZE FROM MEDIA SIZE
+	LD	(SLICE_LBASIZ),HL	; LOWER ORDER BYTES - HL
+	EX	DE,HL
+	LD	(SLICE_LBASIZ+2),HL	; HIGHER ORDER BYTES - DE
+;
+EXT_SLICE4A:
+	; COMPUTE THE START SECTOR (RELATIVE) FOR SLICE -> DE:HL
+	LD      HL,0			; STARTING SECTOR NUMBER
+	LD      DE,0			; ASSUMING A 0 OFFSET, SO CAN COMPARE TO SIZE
+	LD	BC,(SLICE_SPS)
+	LD	A,(SLICE_SLICE)
+	OR      A           		; SLICE NUMBER - SET FLAGS TO CHECK LOOP CTR
+	JR      Z,EXT_SLICE5A 		; NOTHING TO COUNT
+EXT_SLICE4B:
+	ADD     HL,BC       		; ADD ONE SLICE (SPS) TO LOW WORD
+	JR      NC,EXT_SLICE4C 		; CHECK FOR CARRY
+	INC     DE          		; IF SO, BUMP HIGH WORD
+EXT_SLICE4C:
+	DEC     A           		; DEC LOOP (SLICE) COUNTER
+	JR      NZ,EXT_SLICE4B		; AND LOOP
+;
+EXT_SLICE5A:
+	; DE:HL NOW CONTAINS THE STARTING SECTOR FOR SLICE
+	PUSH    HL			; SAVE THE SECTOR OFFSET (SPS * SLICE NUMBER)
+	PUSH    DE
+;
+	ADD     HL,BC			; ADD SPS, GET REQUIRED CAPCITY (UPPER SECTOR)
+	JR      NC,EXT_SLICE5B
+	INC     DE
+EXT_SLICE5B:
+	; DEHL HAS THE REQUIRED NUMBER OF SECTORS (ON MEDIA) FOR THE SLICE
+	PUSH	DE			; SAVE DSK_REQ (MSW)
+	PUSH	HL			; SAVE DSK_REQ (LSW)
+;
+	; CHECK DSK_CAPACITY >= CAP_REQUIRED, CF SET ON OVERFLOW
+	; NO NEED SAVE ACTUAL RESULT
+	OR	A			; CLEAR CARRY FOR SBC
+	LD	HL,(SLICE_LBASIZ+0)	; CAPACITY LSW
+	POP	DE			; REQUIRED LSW
+	SBC	HL,DE			; CAPACITY - REQUIRED (LSW)
+	LD	HL,(SLICE_LBASIZ+2)	; CAPAITY MSW
+	POP	DE			; REQUIRED MSW
+	SBC	HL,DE			; CAPACITY - REQUIRED (MSW)
+;
+	; POP STARTING OFSETT SECTOR
+	POP     DE
+	POP     HL
+;
+	; REQUIRE - CAPACITY -> GENERATES BORROW IF CAPITY > REQUIREMENT
+	JR      NC,EXT_SLICE6 		; IF WE HAVE ENOUGH CAPACITY
+;
+EXT_SLICE5C:
+	; SLICE WONT FIT - STOP AND RETURN ERROR
+	LD	DE,0
+	LD	HL,0			; EMTY OFFSET IN DEHL
+	LD	A,(SLICE_DEVATT)
+	LD	B,A			; DEVICE ATTRIBUTES IN B
+	LD	A,(SLICE_MID)
+	LD	C,A			; RETURN MEDIA ID IN C
+	LD	A,ERR_RANGE		; OTHERWISE SIGNAL NOT ENOUGH CAPACITY
+	OR      A
+	RET
+;
+EXT_SLICE5Z:
+	LD      HL,0			; BOOT THE DISK TO LBA = 0
+	LD      DE,0			;
+;
+EXT_SLICE6:
+	; FINAL CALC AND RETURN SUCCESS
+	; ADD PARTITION OFFSET (START) TO DEHL TO GET ABSOLUTE SLICE OFFSET
+	LD      BC,(SLICE_LBAOFF+0)	; LSB OF LBA OFFSET
+	ADD     HL,BC			; ADD LSB OFFSET
+	EX      DE,HL			; FLIP DE INTO HL
+	LD      BC,(SLICE_LBAOFF+2)	; MSB OF LBA OFFSET
+	ADC     HL,BC			; ADD MSB
+	EX      DE,HL			; FLIP BACK DE:HL AS SLICE OFFSET
+;
+EXT_SLICE6A:
+	; SLICE FITS - RETURN CORRECTLY
+	LD	A,(SLICE_DEVATT)
+	LD	B,A			; DEVICE ATTRIBUTES IN B
+	LD	A,(SLICE_MID)
+	LD	C,A			; RETURN MEDIA ID IN C
+	XOR     A			; CLEAR FLAGS
+	RET				; RETUNING DE:HL AND C
+;
+;--------------------------------------------------------------------------------------------------
+;
+HB_EXTAPI_END	.EQU	$
+;
+;==================================================================================================
 ;   SYSTEM API FUNCTIONS
 ;==================================================================================================
 ;
@@ -4538,31 +5287,38 @@ SYS_RESWARM:
 ;
 SYS_RESCOLD:
 ;
-#IF (MEMMGR == MM_Z280)
+#IFDEF APPBOOT
+	JP	HB_RESTART
+#ELSE
+;
+; MAKE ROM BOOT BANK ACTIVE IN LOW SYS MEM
+;
+  #IF (MEMMGR == MM_Z280)
 	; FOR Z280, NEED TO REMAP THE LOW 32K IN SYSTEM MODE AND
 	; CONTINUE AT ADDRESS ZERO.  WE CANNOT RETURN HERE AFTER THE
 	; BNKSEL IS DONE BECAUSE THE SYSTEM BANK HAS BEEN CHANGED!
-	; SO, WE PRESET THE STACK TO CAUSE A JUMP TO ADDRESS ZERO
-	; ON RETURN FROM THE BNKSEL.  SLICK, RIGHT?
+	; SO, WE PRESET THE STACK TO CAUSE A JUMP TO THE RESTART
+	; ADDRESS ON RETURN FROM THE BNKSEL.  SLICK, RIGHT?
 	DI				; KILL INTERRUPTS
 	LD	SP,HBX_LOC		; STACK IN HIGH MEMORY
-	LD	HL,0			; VALUE TO RESUME
+	LD	HL,HB_RESTART		; RESUME AT RESTART ADDRESS
 	PUSH	HL			; ... IS PRESET ON STACK
-;
-	; MAKE ROM BOOT BANK ACTIVE IN LOW SYS MEM
-	LD	A,BID_BOOT		; BOOT BANK
+	LD	A,BID_BOOT		; BANK TO LAUNCH RESTART
 	LD	B,$10			; FIRST SYS PDR
 	JP	Z280_BNKSEL		; DO IT AND RESUME FROM STACK
-#ELSE
+  #ELSE
+	; FOR OTHER THAN Z280, JUST DO AN INTERBANK CALL TO THE
+	; RESTART ADDRESS.
 	DI
 	LD	SP,HBX_LOC		; STACK JUST BELOW HBIOS PROXY
-	LD	A,BID_BOOT		; BOOT BANK
-	LD	IX,0			; ADDRESS ZERO
+	LD	A,BID_BOOT		; BANK TO LAUNCH RESTART
+	LD	IX,HB_RESTART		; RESUME AT RESTART ADDRESS
 	CALL	HB_BNKCALL		; DOES NOT RETURN
+  #ENDIF
 #ENDIF
 ;
 ; HOOK CALLED WHEN A USERLAND RESET IS INVOKED, TYPICALLY VIA A JUMP
-; TO LOGICAL CPU ADDRESS $0000
+; TO CPU ADDRESS $0000
 ;
 ; CREDIT TO PHILLIP STEVENS FOR SUGGESTING AND SIGNIFICANT CONTRIBUTIONS
 ; TO THE Z180 INVALID OPCODE TRAP ENHANCEMENT.
@@ -4756,6 +5512,11 @@ SYS_GET:
 	JP	Z,SYS_GETDIOCNT
 	CP	BF_SYSGET_DIOFN
 	JP	Z,SYS_GETDIOFN
+	CP	$12		; LEFT FOR BACKWRD COMPATABILITY
+	JP	Z,EXT_SLICE	; FUNCTION MOVED TO TOP LEVEL $E0
+	; REMOVING THE ABOVE CAUSED UPGRADE ISSUES FOR EARLY ADOPTERS
+	; SINCE OS BOOT LOADERS DEPEND ON IT. WITHOUT CAN LEAVE OS
+	; UNBOOTABLE AND MIGRATION HARDER - Oct 2024
 	CP	BF_SYSGET_RTCCNT
 	JP	Z,SYS_GETRTCCNT
 	CP	BF_SYSGET_DSKYCNT
@@ -4768,6 +5529,8 @@ SYS_GET:
 	JP	Z, SYS_GETSNDCNT
 	CP	BF_SYSGET_SNDFN
 	JP	Z,SYS_GETSNDFN
+	CP	BF_SYSGET_SWITCH
+	JP	Z,SYS_GETSWITCH
 	CP	BF_SYSGET_TIMER
 	JP	Z,SYS_GETTIMER
 	CP	BF_SYSGET_SECS
@@ -4920,6 +5683,50 @@ SYS_GETFN:
 	POP	DE			; ... TO DE
 	RET				; AF STILL HAS RESULT OF CALC
 ;
+; GET SWITCH
+;   ON ENTRY:
+;     D: SWITCH KEY
+;	0    -> ILLEGAL / RESERVED
+;	1-FE -> SWITCH
+;	FF   -> DONT GET VALUE CHECK THE STATUS OF NVRAM -> Returning
+;		  A=0   if no NVRAM exists. with NZ flag set
+;		  A=1   if NVRAM is present. with Z flag set
+;		  A='W' if NVRAM is fullly inited. with Z flag set
+;		Note the NZ flag can be used to detect and return an error condition
+;   RETURNS:
+;     HL: SWITCH VALUE 8/16 BIT
+;
+SYS_GETSWITCH:
+;	PUSH	DE
+;	CALL	NVSW_CONFIG		; make sure shadow copy is inited
+;	POP	DE			;
+;	RET	NZ			; Configuration Failed, thus cant continue
+;
+	LD	A,D
+	CP	$FF			; test if want to just get NVRAM status
+	JP	Z,NVSW_STATUS		; Check the Status - Call and Return
+;
+	CALL	SWITCH_RES		; D SWITCH NUMBER -> OUT HL address, E FLAGS
+	RET	NZ			; IF NZ FLAG SET THEN ISSUE
+;
+	LD	B,0			; Clear upper byte
+	LD	C,(HL)			; Get LOW Order Switch Data
+	LD	A,1			; Compare with 1 (byte)
+	CP	E			; Compare The byte count from SWITCH_RES
+	JR	NC,SYS_GETSWITCH2	; 1 byte or less, skip over
+	INC	HL			; next byte pos in a 2 Byte Switch
+	LD	B,(HL)			; Get HIGH Order Switch Data
+;
+SYS_GETSWITCH2:
+	LD	H,B			; retun Result in HL
+	LD	L,C
+	XOR	A			; signal success
+	RET
+#IF ((CPUFAM == CPU_EZ80) & (EZ80TIMER == EZ80TMR_FIRM))
+; IMPLEMENTED IN EZ80DRV.ASM
+;
+#ELSE
+;
 ; GET TIMER
 ;   RETURNS:
 ;     DE:HL: TIMER VALUE (32 BIT)
@@ -4932,6 +5739,12 @@ SYS_GETTIMER:
 	LD	C, TICKFREQ
 	XOR	A
 	RET
+#ENDIF
+;
+#IF ((CPUFAM == CPU_EZ80) & (EZ80TIMER == EZ80TMR_FIRM))
+; IMPLEMENTED IN EZ80DRV.ASM
+;
+#ELSE
 ;
 ; GET SECONDS
 ;   RETURNS:
@@ -4944,11 +5757,12 @@ SYS_GETSECS:
 	CALL	LD32
 	LD	A,(HB_SECTCK)
 	HB_EI
-	NEG			; CONVERT DOWNCOUNTER TO UPCOUNTER
+	NEG				; CONVERT DOWNCOUNTER TO UPCOUNTER
 	ADD	A,TICKFREQ
 	LD	C,A
 	XOR	A
 	RET
+#ENDIF
 ;
 ; GET BOOT INFORMATION
 ;   RETURNS:
@@ -5016,9 +5830,9 @@ SYS_GETCPUSPD:
 ;
 #IF (((PLATFORM == PLT_SBC) | (PLATFORM == PLT_MBC)) & (CPUSPDCAP==SPD_HILO))
 	LD	A,(HB_RTCVAL)
-#IF (PLATFORM == PLT_SBC)
+  #IF (PLATFORM == PLT_SBC)
 	XOR	%00001000		; SBC SPEED BIT IS INVERTED
-#ENDIF
+  #ENDIF
 	BIT	3,A
 	LD	L,0			; ASSUME HALF SPEED
 	JR	Z,SYS_GETCPUSPD1
@@ -5030,6 +5844,16 @@ SYS_GETCPUSPD1:
 	RET
 #ENDIF
 ;
+#IF (PLATFORM == PLT_HEATH)
+	LD	A,(H8P_SPEED)		; GET HEATH SPEED BITS SHADOW
+	XOR	$03			; CONVERT TO HBIOS VALUE
+	LD	L,A			; PUT IN L FOR RETURN
+	LD	DE,$FFFF		; UNKNOWN WAIT STATES
+;
+	XOR	A
+	RET
+#ENDIF
+;
 #IF (CPUFAM == CPU_Z180)
 	LD	HL,0			; INIT CPU SPEED TO HALF
 	LD	A,(HB_CPUTYPE)		; LOAD CPUTYPE
@@ -5126,19 +5950,91 @@ SYS_GETAPPBNKS:
 ;
 SYS_SET:
 	LD	A,C			; GET REQUESTED SUB-FUNCTION
+	CP	BF_SYSSET_SWITCH
+	JP	Z,SYS_SETSWITCH
 	CP	BF_SYSSET_TIMER
-	JR	Z,SYS_SETTIMER
+	JP	Z,SYS_SETTIMER
 	CP	BF_SYSSET_SECS
-	JR	Z,SYS_SETSECS
+	JP	Z,SYS_SETSECS
 	CP	BF_SYSSET_BOOTINFO
-	JR	Z,SYS_SETBOOTINFO
+	JP	Z,SYS_SETBOOTINFO
 	CP	BF_SYSSET_CPUSPD
-	JR	Z,SYS_SETCPUSPD
+	JP	Z,SYS_SETCPUSPD
 	CP	BF_SYSSET_PANEL
 	JP	Z,SYS_SETPANEL
 	SYSCHKERR(ERR_NOFUNC)		; SIGNAL ERROR
 	RET
 ;
+; SET SWITCH
+;   ON ENTRY:
+;     D: SWITCH KEY
+;	0 -> ILLEGAL / RESERVED
+;	1-254 -> SWITCH
+;	FF -> REINIT DEFAULT VALUES
+;     HL: SWITCH VALUE 8/16 BIT
+;
+SYS_SETSWITCH:
+	CALL	NVSW_STATUS		; Check the status of NV RAM
+	RET	NZ			; IF NZ then we cant continue, return NZ at this point
+;
+	LD	A,D			; switch # argument
+	CP	$FF			; test if want to reset NVRAM
+	JP	Z,NVSW_RESET		; then perform reset function. CALL AND RETURN
+;
+	LD	B,H			; move value to write into BC
+	LD	C,L
+	CALL	SWITCH_RES		; IN D SWITCH NUMBER -> OUT HL address, E FLAGS
+	RET	NZ			; RETURN IF NZ - swich number illegal
+;
+	LD	(HL),C			; Save LOW Order Switch Data
+	LD	A,1			; Compare with 1 (byte) switch
+	CP	E			; Compare
+	JR	NC,SYS_SETSWITCH1	; 1 byte or less, skip over
+	INC	HL			; next byte pos
+	LD	(HL),B			; Save High Order Switch Data
+;
+SYS_SETSWITCH1:
+	JP	NVSW_UPDATE		; do a write to NVR, CALL AND RETURN
+;
+; Utility function to convert switch number into lookup
+; INPUT
+; 	D SWITCH NUMBER
+; OUTPUT
+; 	E with Byte count (1,2) for switch, or 0 if switch illegal
+; 	HL Memory Address (CB_SWITCHES + offset)
+SWITCH_RES:
+	LD	A,SWITCH_LEN		; lengt of target array (below)
+	CP	D			; check we fit in the loop
+	JR	C,SWITCH_RES1		; overflow table to abort
+;
+	LD	HL,SWITCH_TAB		; Lookup table below
+	LD	A,D			; plus the offset switch number
+	CALL	ADDHLA			; get address of lookup table
+	LD	E,(HL)			; E (OUT) nubmer of bytes in switch
+;
+	LD	HL,CB_SWITCHES		; BASE ADDRESS OF SHADDOW DATA
+	LD	A,D			; Add The offset to the address
+	CALL	ADDHLA			; Final address of Switch Data
+;
+	XOR	A			; signal success
+	RET
+SWITCH_RES1:
+	OR	$FF			; signal failure
+	RET
+;
+; Switch number maps drectly into the HCB data, so to account
+; for double bytes words, we need a table (loopkup)
+; to defines how to map Applicability of Each Swicth Number
+; 0->Cant be Used; 1->Single Byte Value; 2->Double Byte Value
+;
+SWITCH_TAB:
+	.DB	0	; Switch 0 is header, cant be used
+	.DB	2	; Switch 1 - (WORD)
+	.DB	0	; Switch (byte 2) of prior word, not used
+	.DB	1	; Switch 3 - (BYTE)
+	.DB	0	; Last byte is checksum, cant be used
+SWITCH_LEN	.EQU	$ - SWITCH_TAB - 2
+;
 ; SET BOOT INFORMATION
 ;   ON ENTRY:
 ;     L: BOOT BANK ID
@@ -5151,6 +6047,11 @@ SYS_SETBOOTINFO:
 	XOR	A
 	RET
 ;
+#IF ((CPUFAM == CPU_EZ80) & (EZ80TIMER == EZ80TMR_FIRM))
+; IMPLEMENTED IN EZ80DRV.ASM
+;
+#ELSE
+;
 ; SET TIMER
 ;   ON ENTRY:
 ;     DE:HL: TIMER VALUE (32 BIT)
@@ -5162,6 +6063,11 @@ SYS_SETTIMER:
 	HB_EI
 	XOR	A
 	RET
+#ENDIF
+#IF ((CPUFAM == CPU_EZ80) & (EZ80TIMER == EZ80TMR_FIRM))
+; IMPLEMENTED IN EZ80DRV.ASM
+;
+#ELSE
 ;
 ; SET SECS
 ;   ON ENTRY:
@@ -5174,10 +6080,11 @@ SYS_SETSECS:
 	HB_EI
 	XOR	A
 	RET
+#ENDIF
 ;
 ; SET SYSTEM CPU SPEED ATTRIBUTES
 ;   ON ENTRY:
-;     L: CLOCK MULT (0:HALF, 1:FULL, 2: DOUBLE)
+;     L: CLOCK MULT (0:HALF, 1:FULL, 2: DOUBLE, 3: QUAD)
 ;     D: MEMORY WAIT STATES
 ;     E: I/O WAIT STATES
 ;
@@ -5234,15 +6141,63 @@ SYS_SETCPUSPD2:
 	ADC	A,C			; C -> A; ADD CF FOR ROUNDING
 	LD	(CB_CPUMHZ),A		; SAVE IT
 ;
+#IF (CPUFAM != CPU_EZ80)
 	;  REINIT DELAY ROUTINE
 	LD	A,(CB_CPUMHZ)		; CPU SPEED TO ACCUM AND INIT
 	CALL	DELAY_INIT		; .. SPEED COMPENSATED DELAY
+#ENDIF
 ;
 SYS_SETCPUSPD3:
 	XOR	A
 	RET
 #ENDIF
 ;
+#IF (PLATFORM == PLT_HEATH)
+	; PORT $30:
+	;   0=16MHZ, 1=8MHZ, 2=4MHZ, 3=2MHZ
+	LD	A,L			; REQUESTED SPEED TO ACCUM
+	XOR	$03			; CONVERT TO HEATH BITS
+	AND	$03			; ONLY 2 LS BITS
+;
+H8P_SETSPD:	; INVOKED BY H8P.ASM WHEN SPEED CHANGED VIA FRONT PANEL
+	OUT	(H8P_SPDIO),A		; DO IT
+	LD	(H8P_SPEED),A		; UPDATE FP SHADOW
+;
+	; UPDATE CPUKHZ/CPMHZ
+	LD	HL,(HB_CPUOSC)		; START WITH OSC VALUE IN KHZ
+	LD	B,A			; USE BITS FOR LOOP COUNT
+	OR	A			; CHECK FOR ZERO
+	JR	Z,SYS_SETCPUSPD2	; IF SO, SKIP ADJUSTMENT LOOP
+SYS_SETCPUSPD1:
+	SRL	H			; DIVIDE
+	RR	L			; ... BY TWO
+	DJNZ	SYS_SETCPUSPD1		; LOOP AS NEEDED
+;
+SYS_SETCPUSPD2:
+;
+; HL SHOULD NOW HAVE FINAL CPU RUNNING SPEED IN KHZ.
+; UPDATE CB_CPUMHZ/CB_CPUKHZ WITH THIS VALUE.
+;
+	LD	(CB_CPUKHZ),HL		; UPDATE CPUKHZ
+	LD	DE,1000			; SET UP TO DIV BY 1000 FOR MHZ
+	CALL	DIV16			; BC=CPU MHZ, HL=REMAINDER
+	LD	DE,500			; SET UP TO ROUND UP
+	XOR	A			; IF WITHIN 500 KHZ
+	SBC	HL,DE			; REMAINDER - 500
+	CCF				; COMPLEMENT CF
+	ADC	A,C			; C -> A; ADD CF FOR ROUNDING
+	LD	(CB_CPUMHZ),A		; SAVE IT
+;
+#IF (CPUFAM != CPU_EZ80)
+	;  REINIT DELAY ROUTINE
+	LD	A,(CB_CPUMHZ)		; CPU SPEED TO ACCUM AND INIT
+	CALL	DELAY_INIT		; .. SPEED COMPENSATED DELAY
+#ENDIF
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET
+#ENDIF
+;
 #IF (CPUFAM == CPU_Z180)
 	; VERIFY THAT REQUESTED SETTINGS ARE ALLOWED BY HARDWARE
 	LD	A,L			; GET SPEED REQUESTED
@@ -5372,9 +6327,11 @@ SYS_SETCPUSPD4:
 	LD	A,L			; WORKING VALUE TO A
 	OUT0	(Z180_DCNTL),A		; IMPLEMENT NEW VALUE
 ;
+#IF (CPUFAM != CPU_EZ80)
 	;  REINIT DELAY ROUTINE
 	LD	A,(CB_CPUMHZ)		; CPU SPEED TO ACCUM AND INIT
 	CALL	DELAY_INIT		; .. SPEED COMPENSATED DELAY
+#ENDIF
 ;
   #IF ((INTMODE == 2) & (Z180_TIMER))
 	; THE Z180 TIMER IS BASED ON CPU SPEED.  SO HERE
@@ -5541,7 +6498,7 @@ SYS_INTINFO:
 	LD	A,(HB_IM1CNT)		; RETURN IM1 CALL LIST SIZE
 	LD	E,A
 #ENDIF
-#IF (INTMODE == 2)
+#IF ((INTMODE == 2) | (INTMODE == 3))
 	LD	E,HBX_IVTCNT		; RETURN INT VEC TABLE SIZE
 #ENDIF
 	XOR	A			; INDICATE SUCCESS
@@ -5560,7 +6517,7 @@ SYS_INTVECADR:
 	INC	A			; ALLOW FOR EXTRA ENTRY TO APPEND AT END
 	LD	C,A			; SAVE IN C FOR COMPARE
 #ENDIF
-#IF (INTMODE == 2)
+#IF ((INTMODE == 2) | (INTMODE == 3))
 	LD	C,HBX_IVTCNT		; GET CURRENT ENTRY COUNT
 #ENDIF
 	LD	A,E			; INCOMING INDEX POSITION TO A
@@ -5578,7 +6535,7 @@ SYS_INTGET1:
 #IF (INTMODE == 1)
 	LD	DE,HB_IM1INT		; DE := START OF VECTOR TABLE
 #ENDIF
-#IF (INTMODE == 2)
+#IF ((INTMODE == 2) | (INTMODE == 3))
 	LD	DE,HB_IVT		; DE := START OF VECTOR TABLE
 #ENDIF
 	ADD	HL,DE			; HL := ADR OF VECTOR
@@ -5628,104 +6585,6 @@ SYS_INTSET1:
 HB_SYSAPI_END	.EQU	$
 ;
 ;==================================================================================================
-;   Z280 INTERRUPT VECTOR TABLE
-;==================================================================================================
-;
-HB_Z280IVT_BEG	.EQU	$
-;
-; THE Z280 IVT MUST BE ON A 4K BOUNDARY.  IT HAS BEEN LOCATED
-; HERE IN AN EFFORT TO MINIMIZE WASTED SPACE.  THERE SHOULD BE
-; A LITTLE LESS THAN 4K OF CODE ABOVE.
-;
-#IF (MEMMGR == MM_Z280)
-;
-Z280_IVT_SLACK_ORG	.EQU	$
-	ALIGN($1000)
-Z280_IVT_SLACK		.EQU	$ - Z280_IVT_SLACK_ORG
-	.ECHO	"Z280 IVT SLACK = "
-	.ECHO	Z280_IVT_SLACK
-	.ECHO	" bytes.\n"
-;
-Z280_IVT:
-	.DW	0, 0			; RESERVED
-	.DW	0			; NMI MSR
-	.DW	0			; NMI VECTOR
-	.DW	$0000			; INT A MSR
-	.DW	Z280_BADINT		; INT A VECTOR
-	.DW	$0000			; INT B MSR
-	.DW	Z280_BADINT		; INT B VECTOR
-	.DW	$0000			; INT C MSR
-	.DW	Z280_BADINT		; INT C VECTOR
-	.DW	$0000			; COUNTER/TIMER 0 MSR
-	.DW	Z280_BADINT		; COUNTER/TIMER 0 VECTOR
-	.DW	$0000			; COUNTER/TIMER 1 MSR
-	.DW	Z280_BADINT		; COUNTER/TIMER 1 VECTOR
-	.DW	0, 0			; RESERVED
-	.DW	$0000			; COUNTER/TIMER 2 MSR
-	.DW	Z280_BADINT		; COUNTER/TIMER 2 VECTOR
-	.DW	$0000			; DMA CHANNEL 0 MSR
-	.DW	Z280_BADINT		; DMA CHANNEL 0 VECTOR
-	.DW	$0000			; DMA CHANNEL 1 MSR
-	.DW	Z280_BADINT		; DMA CHANNEL 1 VECTOR
-	.DW	$0000			; DMA CHANNEL 2 MSR
-	.DW	Z280_BADINT		; DMA CHANNEL 2 VECTOR
-	.DW	$0000			; DMA CHANNEL 3 MSR
-	.DW	Z280_BADINT		; DMA CHANNEL 3 VECTOR
-	.DW	$0000			; UART RECEIVER MSR
-	.DW	Z280_BADINT		; UART RECEIVER VECTOR
-	.DW	$0000			; UART TRANSMITTER MSR
-	.DW	Z280_BADINT		; UART TRANSMITTER VECTOR
-	.DW	$0000			; SINGLE STEP TRAP MSR
-	.DW	Z280_SSTEP		; SINGLE STEP TRAP VECTOR
-	.DW	$0000			; BREAK ON HALT TRAP MSR
-	.DW	Z280_BRKHLT		; BREAK ON HALT TRAP VECTOR
-	.DW	$0000			; DIVISION EXCEPTION TRAP MSR
-	.DW	Z280_DIVEXC		; DIVISION EXCEPTION TRAP VECTOR
-	.DW	$0000			; STACK OVERFLOW WARNING TRAP MSR
-	.DW	Z280_STKOVR		; STACK OVERFLOW WARNING TRAP VECTOR
-	.DW	$0000			; ACCESS VIOLATION TRAP MSR
-	.DW	Z280_ACCVIO		; ACCESS VIOLATION TRAP VECTOR
-	.DW	$0000			; SYSTEM CALL TRAP MSR
-	.DW	Z280_SYSCALL		; SYSTEM CALL TRAP VECTOR
-	.DW	$0000			; PRIVILEGED INSTRUCTION TRAP MSR
-	.DW	Z280_PRIVINST		; PRIVILEGED INSTRUCTION TRAP VECTOR
-	.DW	$0000			; EPU <- MEMORY EXTENDED INSTRUCTION TRAP MSR
-	.DW	$0000			; EPU <- MEMORY EXTENDED INSTRUCTION TRAP VECTOR
-	.DW	$0000			; MEMORY <- EPU EXTENDED INSTRUCTION TRAP MSR
-	.DW	$0000			; MEMORY <- EPU EXTENDED INSTRUCTION TRAP VECTOR
-	.DW	$0000			; A <- EPU EXTENDED INSTRUCTION TRAP MSR
-	.DW	$0000			; A <- EPU EXTENDED INSTRUCTION TRAP VECTOR
-	.DW	$0000			; EPU INTERNAL OPERATION EXTENDED INSTRUCTION TRAP MSR
-	.DW	$0000			; EPU INTERNAL OPERATION EXTENDED INSTRUCTION TRAP VECTOR
-	.DW	0, 0			; RESERVED
-	.DW	0, 0			; RESERVED
-	; PROGRAM COUNTER VALUES FOR NMI/INTA (16)
-	.DW	HBX_IV00
-	.DW	HBX_IV01
-	.DW	HBX_IV02
-	.DW	HBX_IV03
-	.DW	HBX_IV04
-	.DW	HBX_IV05
-	.DW	HBX_IV06
-	.DW	HBX_IV07
-	.DW	HBX_IV08
-	.DW	HBX_IV09
-	.DW	HBX_IV0A
-	.DW	HBX_IV0B
-	.DW	HBX_IV0C
-	.DW	HBX_IV0D
-	.DW	HBX_IV0E
-	.DW	HBX_IV0F
-;
-	; THE REMAINDER OF THE Z280 IVT IS TRUNCATED HERE BECAUSE IT
-	; TAKES A BUNCH OF SPACE AND IS NOT USED.  WE SUPPORT ONLY
-	; 16 VECTORED INTERRUPTS AND THEY MUST BE CONNECTED TO INTA.
-;
-#ENDIF
-;
-HB_Z280IVT_END	.EQU	$
-;
-;==================================================================================================
 ;   GLOBAL INTERNAL HBIOS FUNCTIONS
 ;==================================================================================================
 ;
@@ -5969,44 +6828,6 @@ HB_ADDIM1:
 #ENDIF
 ;
 ;--------------------------------------------------------------------------------------------------
-; DSKY SUPPORT
-;--------------------------------------------------------------------------------------------------
-;
-#IF (DSKYENABLE)
-;
-; CONVERT 32 BIT BINARY TO 8 BYTE HEX SEGMENT DISPLAY
-;
-;	HL: ADR OF 32 BIT BINARY
-;	DE: ADR OF DEST LED SEGMENT DISPLAY BUFFER (8 BYTES)
-;
-DSKY_BIN2SEG:
-	LD	B,4			; 4 BYTES OF INPUT
-	LD	A,B			; PUT IN ACCUM
-	CALL	ADDHLA			; PROCESS FROM END (LITTLE ENDIAN)
-DSKY_BIN2SEG1:
-	DEC	HL			; DEC PTR (LITTLE ENDIAN)
-	LD	A,(HL)			; HIGH NIBBLE
-	RRCA \ RRCA \ RRCA \ RRCA	; ROTATE BITS
-	CALL	DSKY_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
-	LD	A,(HL)			; LOW NIBBLE
-	CALL	DSKY_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
-	DJNZ	DSKY_BIN2SEG1		; LOOP FOR ALL INPUT BYTES
-	RET				; DONE
-;
-DSKY_BIN2SEG_NIB:
-	PUSH	HL			; SAVE HL
-	LD	HL,DSKY_HEXMAP		; POINT TO SEG MAP TABLE
-	AND	$0F			; ISOLATE LOW NIBBLE
-	CALL	ADDHLA			; OFFSET INTO TABLE
-	LD	A,(HL)			; LOAD VALUE FROM TABLE
-	POP	HL			; RESTORE HL
-	LD	(DE),A			; SAVE VALUE TO OUTPUT BUF
-	INC	DE			; BUMP TO NEXT OUTPUT BYTE
-	RET				; DONE
-;
-#ENDIF
-;
-;--------------------------------------------------------------------------------------------------
 ; SYSTEM TIMER INTERRUPT HANDLER
 ;--------------------------------------------------------------------------------------------------
 ;
@@ -6026,9 +6847,9 @@ HB_TIMDBG1:
 ; THESE CAN BE HOOKED AS DESIRED BY DRIVERS
 ;
 VEC_TICK:
-	JP	HB_TICK			; TICK PROCESSING VECTOR
+	JP	HB_TICK			; TICKS PROCESSING VECTOR
 VEC_SECOND:
-	JP	HB_SECOND		; SECOND PROCESSING VECTOR
+	JP	HB_SECOND		; SECONDS PROCESSING VECTOR
 ;
 ; TIMER HANDLERS
 ;
@@ -6055,10 +6876,6 @@ HB_TICK1:
 	; PULSE WATCHDOG
 	OUT	(WDOGIO),A		; VALUE IS IRRELEVANT
 #ENDIF
-;
-#IF MKYENABLE
-	CALL	MKY_INT
-#ENDIF
 ;
 	OR	$FF			; NZ SET TO INDICATE INT HANDLED
 	RET
@@ -6464,7 +7281,7 @@ Z280_PRIVINST:
 	;;;HB_DI			; DO THE DI
 	XOR	A			; NO INTERRUPTS
 	LD	(HB_MSRSAV),A		; UPDATE SAVED MSR LSB
-	
+
 	INC	HL			; BUMP PAST IT
 	JR	Z280_PRIVINSTX
 ;
@@ -6750,6 +7567,128 @@ Z2DMAADR2:
 ;
 #ENDIF
 ;
+;--------------------------------------------------------------------------------------------------
+; ROUTINES FOR NON VOLITILE (NVRAM) SWITCHES
+;--------------------------------------------------------------------------------------------------
+;
+; Return Status
+;  A=0   if no NVRAM exists. with NZ flag set
+;  A=1   if NVRAM is present. with Z flag set
+;  A='W' if NVRAM is fullly inited. with Z flag set
+; Note the NZ flag can be used to detect and return an error condition
+;
+NVSW_STATUS:
+	LD	A,(CB_SWITCHES)		; the status byte
+	LD	B,A			; save it
+	AND	1			; applies to 'W' and $01 status, -> 1
+	CP	1			; set NZ based on A = 1
+	LD	A,B			; return the
+	RET
+;
+; RESET CONTENTS OF NVRAM, STORING INTO
+; RETURN NONZERO IF WRITTEN - ZERO IF NOT WRITTEN
+;
+NVSW_RESET:
+	CALL	NVSW_DEFAULTS		; copy defaults into HCB
+	; Fall Through and Update (write) status
+	; JP	NVSW_UPDATE
+;
+; UPDATE HBIOS SHADOW TO NVRAM, AFTER SETTING HBIOS VALUE
+; RETURN NONZERO IF WRITTEN - ZERO IF NOT WRITTEN
+;
+NVSW_UPDATE:
+	CALL	NVSW_CHECKSUM		; CALC checksum into A
+	LD	(CB_SWITCHCK),A		; store checksum in hcb
+	CALL	NVSW_WRITE		; write the bytes to nvr
+	RET	Z			; Successful write, return
+	; write failed for some reason ???
+	LD	A,1
+	LD	(CB_SWITCHES),A		; ensure hcb signature=1
+	OR	$FF			; failure
+	RET				; return NZ flag
+;
+; PERFORM CHECKSUM CALC OF DATA IN HCB
+; RETURN A REGISTER -> CONTAINING THE CHECKSUM
+;
+NVSW_CHECKSUM:
+	XOR	A
+	LD	B,NVSW_SIZE		; NUMBER OF BYTES TO CHECK
+	LD	HL,CB_SWITCHES		; First Byte in HBIOS (HCB)
+NVSW_CHECKSM1:
+	XOR	(HL)			; XOR The Byte
+	INC	HL			; HL address
+	DJNZ	NVSW_CHECKSM1		; LOOP
+	XOR	RMJ << 4 | RMN		; FIRST BYTE OF VERSION INFO
+	XOR	RUP << 4 | RTP		; SECOND BYTE OF VERSION INFO
+	RET
+;
+; COPY DEFAULTS INTO HCB
+;
+NVSW_DEFAULTS:
+	LD	HL,NVSW_DEFAULT		; Copy default bytes from
+	LD	DE,CB_SWITCHES		; to hbios HCB location
+	LD	BC,NVSW_SIZE		; number of bytes top copy
+	LDIR		 		; copy bytes
+	RET
+;
+; LOAD BYTES FROM NVR - INTO HBIOS DCB
+; RETURN ZERO IF READ SUCCESS, NON-ZERO IF CANT READ
+;
+NVSW_READ:
+	LD	B,NVSW_SIZE + 1		; NUMBER OF BYTES, + 1 for CHECKSUM
+	LD	C,0			; FIRST Byte address in RTC
+	LD	HL,CB_SWITCHES		; First Byte in HBIOS (HCB)
+NVSW_READ1:
+	PUSH	HL			; SAVE ADDRESS
+	PUSH 	BC			; Save Loop counter
+	LD	B,BF_RTCGETBYT		; GET RTC BYTE (at a time), requires loop
+	CALL	RTC_DISPATCH		; CALL RTC
+	POP	BC			; Restore Loop
+	POP	HL			; restore Block pointer
+	RET	NZ			; ERROR JUST RETURN
+	LD	(HL),E			; store IT
+	INC	C			; RTC Byte address
+	INC	HL			; HL address
+	DJNZ	NVSW_READ1		; LOOP to the next byte
+NVSW_READ2:
+	LD	A,(CB_SWITCHES)		; FIRST BYTE
+	CP	'W'			; MUST BE 'W'
+	RET				; ZERO IF OK, NON-ZERO IF ISSUE
+;
+; SAVE BYTES FROM HBIOS DCB - INTO NVR
+; RETURN ZERO IF SUCCESS, NON-ZERO IF CANT WRITE
+;
+NVSW_WRITE:
+	LD	B,NVSW_SIZE + 1		; NUMBER OF BYTES, + 1 for CHECKSUM
+	LD	C,0			; FIRST Byte address in RTC
+	LD	HL,CB_SWITCHES		; First Byte in HBIOS (HCB)
+NVSW_WRITE1:
+	PUSH	HL			; SAVE ADDRESS
+	PUSH 	BC			; Save Loop counter
+	LD	E,(HL)			; Value to Write
+	LD	B,BF_RTCSETBYT		; SET RTC BYTE
+	CALL	RTC_DISPATCH		; CALL RTC
+	POP	BC			; Restore Loop
+	POP	HL			; restore Block pointer
+	RET	NZ			; ERROR JUST RETURN
+	INC	C			; RTC Byte address
+	INC	HL			; HL address
+	DJNZ	NVSW_WRITE1		; LOOP, One Byte at a Time
+NVSW_WRITE2:
+	XOR	A			; SUCCESS
+	RET				; ZERO IF OK, NON-ZERO IF ISSUE
+;
+; DEFAULT VALUES FOR NVRAM, USED TO RESET NVR
+;
+NVSW_DEFAULT:
+	.DB	'W'			; Signature Byte
+	.DB	'H'			; Default Boot - Rom Application [H]elp
+	.DB	DBOOT_ROM		; Default Boot - ROM Application
+	.DB	0			; Auto Boot - NO auto boot
+	; Configure above byte from (BOOT_TIMEOUT != -1)
+; SIZE OF NVR BYTES
+NVSW_SIZE	.EQU 	$ - NVSW_DEFAULT
+;
 HB_INTFUNC_END	.EQU	$
 ;
 ;==================================================================================================
@@ -6908,7 +7847,7 @@ RS_IMAGE:
 RS_START:
 	LD	A,(HB_CURBNK)		; GET CURRENT BANK
 	PUSH	AF			; SAVE IT
-	
+
 	LD	C,0			; RUNNING BANK COUNT
 	LD	HL,$7FFF		; BYTE TEST ADDRESS
 	LD	IX,RS_ARY		; ORIG BYTE STORAGE ARRAY PTR
@@ -6940,7 +7879,7 @@ RS_LOOP1:
 	LD	(HL),A
 	OR	A			; ZERO?
 	JR	Z,RS_NEXT		; SKIP STORED VALUE CHECK
-	
+
 	; VERIFY ALL STORED VALUES
 	LD	B,C			; INIT LOOP COUNTER
 	LD	E,0			; INIT BANK ID
@@ -6957,7 +7896,7 @@ RS_LOOP3:
 RS_NEXT:
 	INC	C			; ADD 1 TO RAM BANK COUNT
 	JR	RS_LOOP1		; AND LOOP TILL DONE
-;	
+;
 RS_DONE:
 	LD	E,C			; FINAL BANK COUNT TO E
 	LD	A,C
@@ -7044,7 +7983,9 @@ FP_DETECT1:
 	; ATTEMPT TO CONFIRM WE HAVE A VALID PORT.  CREDIT TO STEPHEN
 	; COUSINS FOR THIS APPROACH.
 	LD	C,FPSW_IO		; ADR OF SWITCH PORT
+	EZ80_IO
 	IN	C,(C)			; READ IT USING IN (C)
+	EZ80_IO
 	IN	A,(FPSW_IO)		; READ IT USING IN (PORT)
 	CP	C			; PORT FLOATING ON MISMATCH
 	JR	NZ,FP_DETECT2		; NO H/W, SET FLAG
@@ -7073,12 +8014,13 @@ FP_SETLEDS:
   #IF (FPLED_INV)
 	XOR	$FF			; INVERT BITS IF NEEDED
   #ENDIF
-	OUT	(FPLED_IO),A		; WRITE 
+
+	EZ80_IO
+	OUT	(FPLED_IO),A		; WRITE
 FP_SETLEDS1:
 	POP	HL			; RESTORE HL
 	RET				; DONE
 ;
-;
 #ENDIF
 ;
 #IF (FPSW_ENABLE)
@@ -7089,6 +8031,7 @@ FP_GETSWITCHES:
 	LD	A,(FPSW_ACTIVE)		; SWITCHES ACTIVE?
 	OR	A			; SET FLAGS
 	RET	Z			; BAIL OUT IF NOT ACTIVE
+	EZ80_IO
 	IN	A,(FPSW_IO)		; READ SWITCHES
   #IF (FPSW_INV)
 	XOR	$FF			; INVERT BITS IF NEEDED
@@ -7101,6 +8044,8 @@ FP_GETSWITCHES:
 FP_ACTIVE:
 FPSW_ACTIVE	.DB	TRUE
 FPLED_ACTIVE	.DB	TRUE
+
+#IF (CPUFAM != CPU_EZ80) ; eZ80 WILL RETURNED ITS MEASURED CPUOSC - SO NO NEED FOR DETECTION HERE
 ;
 ;==================================================================================================
 ; CPU SPEED DETECTION USING DS-1302 RTC
@@ -7219,6 +8164,7 @@ HB_CPUSPD2:
 	; HANDLE NO RTC OR NOT TICKING
 	OR	$FF			; SIGNAL ERROR
 	RET				; AND DONE
+#ENDIF ; CPUFAM != CPU_EZ80
 ;
 HB_UTIL_END	.EQU	$
 ;
@@ -7311,7 +8257,7 @@ PS_PRTDT:
 	LD	A,00001111B
 	CALL	PRTIDXMSK
 	CALL	PS_PAD18		; PAD TO 18 SPACES
-	RET	
+	RET
 ;
 ; PRINT DISK CAPACITY (UNIT IN C, ATTRIBUTE IN E)
 ;
@@ -7688,6 +8634,7 @@ HB_CPU_STR:	.TEXT	" Z80$"
 		.TEXT	" Z8S180-K$"
 		.TEXT	" Z8S180-N$"
 		.TEXT	" Z80280$"
+		.TEXT   " eZ80$"
 ;
 PS_STRNUL	.TEXT	"--$"		; DISPLAY STRING FOR NUL VALUE
 ;
@@ -7756,6 +8703,8 @@ PS_SDLPT	.TEXT	"LPT$"
 PS_SDESPCON	.TEXT	"ESPCON$"
 PS_SDESPSER	.TEXT	"ESPSER$"
 PS_SDSCON	.TEXT	"SCON$"
+PS_SDEF		.TEXT	"EF$"
+PS_SDSSER	.TEXT	"SSER$"
 ;
 ; CHARACTER SUB TYPE STRINGS
 ;
@@ -7780,6 +8729,8 @@ PS_VDGDC	.TEXT	"GDC$"
 PS_VDTMS	.TEXT	"TMS$"
 PS_VDVGA	.TEXT	"VGA$"
 PS_VDVRC	.TEXT	"VRC$"
+PS_VDEF		.TEXT	"EF$"
+PS_VDFV		.TEXT	"FV$"
 ;
 ; VIDEO TYPE STRINGS
 ;
@@ -7809,33 +8760,51 @@ HB_PRTSUM_END	.EQU	$
 ;
 HB_DRIVERS_BEG	.EQU	$
 ;
-#IF (DSKYENABLE)
-  #IF (ICMENABLE)
+;;;#IF (DSKYENABLE)
+#IF (ICMENABLE)
 ORG_ICM	.EQU	$
   #INCLUDE "icm.asm"
 SIZ_ICM	.EQU	$ - ORG_ICM
 		MEMECHO	"ICM occupies "
 		MEMECHO	SIZ_ICM
 		MEMECHO	" bytes.\n"
-  #ENDIF
+#ENDIF
 ;
-  #IF (PKDENABLE)
+#IF (PKDENABLE)
 ORG_PKD	.EQU	$
   #INCLUDE "pkd.asm"
 SIZ_PKD	.EQU	$ - ORG_PKD
 		MEMECHO	"PKD occupies "
 		MEMECHO	SIZ_PKD
 		MEMECHO	" bytes.\n"
-  #ENDIF
+#ENDIF
+;;;#ENDIF
 ;
-  #IF (H8PENABLE)
+#IF (LCDENABLE)
+ORG_LCD	.EQU	$
+  #INCLUDE "lcd.asm"
+SIZ_LCD	.EQU	$ - ORG_LCD
+		MEMECHO	"LCD occupies "
+		MEMECHO	SIZ_LCD
+		MEMECHO	" bytes.\n"
+#ENDIF
+;
+#IF (GM7303ENABLE)
+ORG_GM7303	.EQU	$
+  #INCLUDE "gm7303.asm"
+SIZ_GM7303	.EQU	$ - ORG_GM7303
+		MEMECHO	"GM7303 occupies "
+		MEMECHO	SIZ_GM7303
+		MEMECHO	" bytes.\n"
+#ENDIF
+;
+#IF (H8PENABLE)
 ORG_H8P	.EQU	$
   #INCLUDE "h8p.asm"
 SIZ_H8P	.EQU	$ - ORG_H8P
 		MEMECHO	"H8P occupies "
 		MEMECHO	SIZ_H8P
 		MEMECHO	" bytes.\n"
-  #ENDIF
 #ENDIF
 ;
 #IF (PLATFORM == PLT_NABU)
@@ -7892,12 +8861,12 @@ SIZ_PCF		.EQU	$ - ORG_PCF
 		MEMECHO	" bytes.\n"
 #ENDIF
 ;
-#IF (DS7RTCENABLE)
-ORG_DS7RTC	.EQU	$
-  #INCLUDE "ds7rtc.asm"
-SIZ_DS7RTC	.EQU	$ - ORG_DS7RTC
-		MEMECHO	"DS7RTC occupies "
-		MEMECHO	SIZ_DS7RTC
+#IF (DS5RTCENABLE)
+ORG_DS5RTC	.EQU	$
+  #INCLUDE "ds5rtc.asm"
+SIZ_DS5RTC	.EQU	$ - ORG_DS5RTC
+		MEMECHO	"DS5RTC occupies "
+		MEMECHO	SIZ_DS5RTC
 		MEMECHO	" bytes.\n"
 #ENDIF
 ;
@@ -7918,6 +8887,16 @@ SIZ_RP5RTC	.EQU	$ - ORG_RP5RTC
 		MEMECHO	SIZ_RP5RTC
 		MEMECHO	" bytes.\n"
 #ENDIF
+;
+#IF (SSERENABLE)
+ORG_SSER	.EQU	$
+  #INCLUDE "sser.asm"
+SIZ_SSER	.EQU	$ - ORG_SSER
+		MEMECHO	"SSER occupies "
+		MEMECHO	SIZ_SSER
+		MEMECHO	" bytes.\n"
+#ENDIF
+;
 #IF (ASCIENABLE)
 ORG_ASCI	.EQU	$
   #INCLUDE "asci.asm"
@@ -8071,6 +9050,15 @@ SIZ_VRC	.EQU	$ - ORG_VRC
 		MEMECHO	" bytes.\n"
 #ENDIF
 ;
+#IF (FVENABLE)
+ORG_FV	.EQU	$
+  #INCLUDE "fv.asm"
+SIZ_FV	.EQU	$ - ORG_FV
+		MEMECHO	"FV occupies "
+		MEMECHO	SIZ_FV
+		MEMECHO	" bytes.\n"
+#ENDIF
+;
 #IF (DMAENABLE)
 ORG_DMA	.EQU	$
 #INCLUDE "dma.asm"
@@ -8309,6 +9297,50 @@ SIZ_YM2612	.EQU	$ - ORG_YM2612
 		MEMECHO	" bytes.\n"
 #ENDIF
 ;
+;
+#IF (CPUFAM == CPU_EZ80)
+	MEMECHO	"EZ80 DRIVERS\n"
+ORG_EZ80DRVS	.EQU	$
+;
+ORG_EZ80CPUDRV	.EQU	$
+  #INCLUDE "ez80cpudrv.asm"
+SIZ_EZ80CPUDRV	.EQU	$ - ORG_EZ80CPUDRV
+		MEMECHO	"  EZ80 CPU DRIVER occupies "
+		MEMECHO	SIZ_EZ80CPUDRV
+		MEMECHO	" bytes.\n"
+;
+ORG_EZ80SYSTMR	.EQU	$
+  #INCLUDE "ez80systmr.asm"
+SIZ_EZ80SYSTMR	.EQU	$ - ORG_EZ80SYSTMR
+		MEMECHO	"  EZ80 SYS TIMER occupies "
+		MEMECHO	SIZ_EZ80SYSTMR
+		MEMECHO	" bytes.\n"
+;
+#IF (EZ80RTCENABLE)
+ORG_EZ80RTC	.EQU	$
+  #INCLUDE "ez80rtc.asm"
+SIZ_EZ80RTC	.EQU	$ - ORG_EZ80RTC
+		MEMECHO	"  EZ80 RTC occupies "
+		MEMECHO	SIZ_EZ80RTC
+		MEMECHO	" bytes.\n"
+#ENDIF
+;
+#IF (EZ80UARTENABLE)
+ORG_EZU	.EQU	$
+  #INCLUDE "ez80uart.asm"
+SIZ_EZU		.EQU	$ - ORG_EZU
+		MEMECHO	"  EZ80 UART occupies "
+		MEMECHO	SIZ_EZU
+		MEMECHO	" bytes.\n"
+#ENDIF
+
+SIZ_EZ80DRVS	.EQU	$ - ORG_EZ80DRVS
+		MEMECHO	"  Total "
+		MEMECHO	SIZ_EZ80DRVS
+		MEMECHO	" bytes.\n"
+
+#ENDIF
+
 		MEMECHO	"RTCDEF="
 		MEMECHO	RTCDEF
 		MEMECHO	"\n"
@@ -8399,7 +9431,7 @@ HB_TICKS	.FILL	4,0		; 32 BIT TICK COUNTER
 HB_SECTCK	.DB	TICKFREQ	; TICK COUNTER FOR FRACTIONAL SECONDS
 HB_SECS		.FILL	4,0		; 32 BIT SECONDS COUNTER
 ;
-HB_CPUTYPE	.DB	0		; 0=Z80, 1=80180, 2=SL1960, 3=ASCI BRG
+HB_CPUTYPE	.DB	0		; 0=Z80, 1=Z180, 2=Z180-K, 3=Z180-N, 4=Z280
 HB_CPUOSC	.DW	CPUOSC		; ACTUAL CPU HARDWARE OSC FREQ IN KHZ
 ;
 HB_BATCOND	.DB	0		; BATTERY CONDITION (0=LOW, 1=OK)
@@ -8424,10 +9456,6 @@ STR_PANIC	.TEXT	"\r\n>>> PANIC: $"
 STR_SYSCHK	.TEXT	"\r\n>>> SYSCHK: $"
 STR_CONTINUE	.TEXT	"\r\nContinue (Y/N)? $"
 ;
-#IF (DSKYENABLE)	;	'H','B','I','O',' ',' ',' ',' '
-MSG_HBVER		.DB	$76,$7F,$30,$3F,$00,$00,$00,$00	; "HBIO    "
-#ENDIF
-;
 HB_CURSEC	.DB	0		; CURRENT SECOND (TEMP)
 ;
 HB_BCDTMP	.FILL	5,0		; BCD NUMBER STORAGE (TEMP)
@@ -8474,50 +9502,54 @@ HB_APPBOOTERR:
 STR_APPBOOTERR	.DB	"\r\n\r\n*** App Boot is only possible on running RomWBW system!\r\n\r\n$"
 ;
 HB_APPBOOT1:
+	; APPBOOT REQUIRES THAT THE COMMON BANK IS NOT CHANGED BY
+	; THE NEW CONFIG.  TEST FOR THIS AND DIAGNOSE IF SO.
+	LD	A,(HCB_BIDCOM)		; RUNNING COMMON BANK ID
+
+	LD	B,BF_SYSGET		; HBIOS SYSGET
+	LD	C,BF_SYSGET_BNKINFO	; BANK INFORMATION
+	RST	08			; D = BIOS BANK ID
+	LD	B,BF_SYSPEEK		; HBIOS FUNC: PEEK
+	LD	HL,HCB_LOC + HCB_BIDCOM	; COMMON BANK ID
+	RST	08			; E = COMMON BANK ID
+	LD	A,E			; PUT IN A
+	CP	BID_COM			; COMPARE TO NEW CONFIG
+	JR	Z,HB_APPBOOT2		; IF SAME, CONTINUE
+;
+	; DIAGNOSE COMMON BANK ID MISMATCH
+	LD	DE,STR_COMBANKERR	; POINT TO ERROR MESSAGE
+	LD	C,9			; BDOS FUNC 9: WRITE STR
+	CALL	$0005			; DO IT
+	OR	$FF			; SIGNAL ERROR
+	RET				; AND RETURN
+;
+STR_COMBANKERR	.DB	"\r\n\r\n*** Common Bank Mismatch!\r\n\r\n$"
+;
+HB_APPBOOT2:
 	; ANNOUNCE THE APPLICATION BOOT
 	LD	DE,STR_APPBOOT		; POINT TO MESSAGE
 	LD	C,9			; BDOS FUNC 9: WRITE STR
 	CALL	$0005			; DO IT
-	JR	HB_APPBOOT2		; AND CONTINUE
+	CALL	LDELAY			; SERIAL PORT FLUSH TIME
+	JR	HB_APPBOOT3		; AND CONTINUE
 ;
 STR_APPBOOT	.DB	"\r\n\r\n*** Launching RomWBW HBIOS v", BIOSVER, ", ", TIMESTAMP, " for"
 		.DB	"\r\n\r\n    ", PLATFORM_NAME, "$"
 ;
-HB_APPBOOT2:
-	; IF THIS IS AN APPLICATION BOOT, WE CAPTURE THE CURRENT BANK ID
-	; AND UPDATE THE PROXY IMAGE.  LATER, WHEN THE PROXY IMAGE IS COPIED
-	; TO IT'S RUNNING LOCATION AT TOP OF RAM, THE CORRECT HB_CURBNK
-	; VALUE WILL BE INSTALLED. NOTE: THE ADDRESSES IN THE PROXY
-	; IMAGE ARE FOR IT'S RUNNING LOCATION.  WE NEED TO USE *MATH*
-	; TO DERIVE THE LOCATION OF HB_CURBNK IN THE IMAGE.
-	LD	A,(HB_CURBNK)
-	LD	(HB_CURBNK - HBX_LOC + HBX_IMG),A
-;
-	; FOR AN APPLICATION BOOT, WE ALSO COPY THE CONCATENATED OS
-	; IMAGES TO THE AUX BANK WHERE WE WILL JUMP TO ROMLDR LATER.
-	; THE AUX BANK WILL BE DESTROYED IF CP/M 3 IS LOADED.  WE DON'T
-	; LIVE IN A PERFECT WORLD.
-	LD	B,BF_SYSSETCPY		; HBIOS FUNC: SETUP BANK COPY
-	LD	D,BID_AUX		; D = DEST BANK = AUX BANK
-	LD	A,(HB_CURBNK)		; E = SRC BANK = CUR BANK
-	LD	E,A			; USE AS SOURCE
-	LD	HL,$8000		; HL = COPY LEN = ENTIRE BANK
-	RST	08			; DO IT
-	LD	B,BF_SYSBNKCPY		; HBIOS FUNC: PERFORM BANK COPY
-	LD	HL,HB_END		; COPY FROM END OF HBIOS
-	LD	DE,0			; TO START OF TARGET BANK
-	RST	08			; DO IT
+HB_APPBOOT3:
 ;
   #IF (MEMMGR == MM_Z280)
 	; WE NEED TO SWITCH FROM USER MODE TO SYSTEM MODE, BUT CONTINUE
 	; RUNNING IN THE CURRENT BANK.  THIS IS A LITTLE MESSY.
 ;
-	; FIRST, OVERLAY PROXY CODE WITH NEW CODE SO WE CAN USE THE
+	; FIRST, OVERLAY PROXY CODE WITH FRESH CODE SO WE CAN USE THE
 	; PROXY ROUTINES SAFELY.
+	LD	A,(HB_CURBNK)		; GET CURBNK
 	LD	DE,HBX_LOC		; RUNNING LOCATION
 	LD	HL,HBX_IMG		; LOCATION IN IMAGE
 	LD	BC,HBX_SIZ		; SIZE
 	LDIR				; INSTALL IT
+	LD	(HB_CURBNK),A		; RESTORE CURBNK
 ;
 	; NEXT, COPY A BIT OF CODE TO DO THE SYSTEM TRANSITION TO
 	; UPPER MEM. WE CAN BORROW THE PROXY BOUNCE BUFFER FOR THIS.
@@ -8527,7 +9559,7 @@ HB_APPBOOT2:
 	LDIR
 ;
 	; THEN SYSCALL IT.  NOTE THAT THE ROUTINE CALLED DOES NOT
-	; (RET)URN, IT JUMPS TO CONTINUE SO THAT THE SYSCALL DOES
+	; (RET)URN, IT JUMPS TO HB_RESTART SO THAT THE SYSCALL DOES
 	; NOT RETURN TO USER MODE.
 	SC	HBX_BUF			; SYSCALL ROUTINE
 ;
@@ -8541,7 +9573,7 @@ Z280_GOSYS:
 	LD	A,(HB_CURBNK)		; CURRENT BANK
 	LD	B,$10			; FIRST SYSTEM PDR
 	CALL	Z280_BNKSEL		; DO THE SWITCH
-	JP	HB_APPBOOT_Z		; AND RESUME BOOT
+	JP	HB_RESTART		; AND RESUME BOOT
 ;
 Z280_GOSYS_LEN	.EQU	$ - Z280_GOSYS
 ;
@@ -8599,37 +9631,6 @@ MG014_STATMAPHI:
 ;
 #ENDIF
 ;
-; CODES FOR NUMERICS
-; HIGH BIT ALWAYS CLEAR TO SUPPRESS DECIMAL POINT
-; SET HIGH BIT TO SHOW DECIMAL POINT
-;
-#IF (DSKYENABLE)
-;
-DSKY_HEXMAP:
-	.DB	$3F	; 0
-	.DB	$06	; 1
-	.DB	$5B	; 2
-	.DB	$4F	; 3
-	.DB	$66	; 4
-	.DB	$6D	; 5
-	.DB	$7D	; 6
-	.DB	$07	; 7
-	.DB	$7F	; 8
-	.DB	$67	; 9
-	.DB	$77	; A
-	.DB	$7C	; B
-	.DB	$39	; C
-	.DB	$5E	; D
-	.DB	$79	; E
-	.DB	$71	; F
-;
-DSKY_BUF	.FILL	8,0
-DSKY_BUFLEN	.EQU	$ - DSKY_BUF
-DSKY_HEXBUF	.FILL	4,0
-DSKY_HEXBUFLEN	.EQU	$ - DSKY_HEXBUF
-;
-#ENDIF
-;
 HB_DATA_END	.EQU	$
 ;
 HB_END		.EQU	$
@@ -8649,8 +9650,9 @@ SLACK		.EQU	BNKTOP - $
 	.ECHO "INTVEC         \t" \ .ECHO HB_INTVEC_BEG \ .ECHO "\t" \ .ECHO HB_INTVEC_END - HB_INTVEC_BEG \ .ECHO "\n"
 	.ECHO "SYSINIT        \t" \ .ECHO HB_SYSINIT_BEG \ .ECHO "\t" \ .ECHO HB_SYSINIT_END - HB_SYSINIT_BEG \ .ECHO "\n"
 	.ECHO "DISP           \t" \ .ECHO HB_DISP_BEG \ .ECHO "\t" \ .ECHO HB_DISP_END - HB_DISP_BEG \ .ECHO "\n"
-	.ECHO "SYSAPI         \t" \ .ECHO HB_SYSAPI_BEG \ .ECHO "\t" \ .ECHO HB_SYSAPI_END - HB_SYSAPI_BEG \ .ECHO "\n"
 	.ECHO "Z280IVT        \t" \ .ECHO HB_Z280IVT_BEG \ .ECHO "\t" \ .ECHO HB_Z280IVT_END - HB_Z280IVT_BEG \ .ECHO "\n"
+	.ECHO "EXTAPI         \t" \ .ECHO HB_EXTAPI_BEG \ .ECHO "\t" \ .ECHO HB_EXTAPI_END - HB_EXTAPI_BEG \ .ECHO "\n"
+	.ECHO "SYSAPI         \t" \ .ECHO HB_SYSAPI_BEG \ .ECHO "\t" \ .ECHO HB_SYSAPI_END - HB_SYSAPI_BEG \ .ECHO "\n"
 	.ECHO "INTFUNC        \t" \ .ECHO HB_INTFUNC_BEG \ .ECHO "\t" \ .ECHO HB_INTFUNC_END - HB_INTFUNC_BEG \ .ECHO "\n"
 	.ECHO "UTIL           \t" \ .ECHO HB_UTIL_BEG \ .ECHO "\t" \ .ECHO HB_UTIL_END - HB_UTIL_BEG \ .ECHO "\n"
 	.ECHO "PRTSUM         \t" \ .ECHO HB_PRTSUM_BEG \ .ECHO "\t" \ .ECHO HB_PRTSUM_END - HB_PRTSUM_BEG \ .ECHO "\n"
@@ -8682,7 +9684,7 @@ SLACK		.EQU	BNKTOP - $
 	!!!	; FORCE AN ASSEMBLY ERROR
 #ENDIF
 ;
-;;;#IF (SLACK < (1024 * 3))	
+;;;#IF (SLACK < (1024 * 3))
 ;;;	.ECHO	"*** ERROR: Low HEAP space!!!\n"
 ;;;	!!!	; FORCE AN ASSEMBLY ERROR
 ;;;#ENDIF
diff --git a/Source/HBIOS/hbios.inc b/Source/HBIOS/hbios.inc
index 9c00f6e2..bac1c903 100644
--- a/Source/HBIOS/hbios.inc
+++ b/Source/HBIOS/hbios.inc
@@ -46,6 +46,8 @@ BF_DSKYKEYLEDS	.EQU	BF_DSKY + 5	; SET/CLEAR KEYPAD LEDS
 BF_DSKYSTATLED	.EQU	BF_DSKY + 6	; SET/CLEAR STATUS LEDS
 BF_DSKYBEEP	.EQU	BF_DSKY + 7	; BEEP ONBOARD DSKY SPEAKER
 BF_DSKYDEVICE	.EQU	BF_DSKY + 8	; DSKY DEVICE INFO REPORT
+BF_DSKYMESSAGE	.EQU	BF_DSKY + 9	; DSKY MESSAGE HANDLING
+BF_DSKYEVENT	.EQU	BF_DSKY + 10	; DSKY EVENT HANDLING
 ;
 BF_VDA		.EQU	$40
 BF_VDAINI	.EQU	BF_VDA + 0	; INITIALIZE VDU
@@ -74,6 +76,7 @@ BF_SNDPLAY	.EQU	BF_SND + 4	; INITIATE THE REQUESTED SOUND COMMAND
 BF_SNDQUERY	.EQU	BF_SND + 5	; E IS SUBFUNCTION
 BF_SNDDURATION	.EQU	BF_SND + 6	; REQUEST DURATION HL MILLISECONDS
 BF_SNDDEVICE	.EQU	BF_SND + 7	; SOUND DEVICE INFO REQUEST
+BF_SNDBEEP	.EQU	BF_SND + 8	; PLAY A BEEP SOUND ON DEVICE
 ;
 ; BF_SNDQUERY SUBCOMMANDS
 BF_SNDQ_STATUS		.EQU	0
@@ -81,6 +84,11 @@ BF_SNDQ_CHCNT		.EQU	BF_SNDQ_STATUS + 1	; RETURN COUNT OF CHANNELS
 BF_SNDQ_VOLUME		.EQU	BF_SNDQ_STATUS + 2	; 8 BIT NUMBER
 BF_SNDQ_PERIOD		.EQU	BF_SNDQ_STATUS + 3	; 16 BIT NUMBER
 BF_SNDQ_DEV		.EQU	BF_SNDQ_STATUS + 4	; RETURN DEVICE TYPE CODE AND IO PORTS - TYPE IN B, PORTS IN DE, HL
+;
+; EXTENSION FUNCTIONS
+BF_EXT		.EQU	$E0
+BF_EXTSLICE	.EQU	BF_EXT + 0	; SLICE CALCULATION (WAS BF_SYSGET_DIOMED)
+
 ;
 BF_SYS		.EQU	$F0
 BF_SYSRESET	.EQU	BF_SYS + 0	; SOFT RESET HBIOS
@@ -112,6 +120,8 @@ BF_SYSGET_VDACNT	.EQU	$40	; GET VDA UNIT COUNT
 BF_SYSGET_VDAFN		.EQU	$41	; GET VDA UNIT FN/DATA ADR
 BF_SYSGET_SNDCNT	.EQU	$50	; GET VDA UNIT COUNT
 BF_SYSGET_SNDFN		.EQU	$51	; GET SND UNIT FN/DATA ADR
+;
+BF_SYSGET_SWITCH	.EQU	$C0	; GET NON VOLITILE SWITCH VALUE
 BF_SYSGET_TIMER		.EQU	$D0	; GET CURRENT TIMER VALUE
 BF_SYSGET_SECS		.EQU	$D1	; GET CURRENT SECONDS VALUE
 BF_SYSGET_BOOTINFO	.EQU	$E0	; GET BOOT INFORMATION
@@ -122,6 +132,7 @@ BF_SYSGET_CPUSPD	.EQU	$F3	; GET CLOCK SPEED & WAIT STATES
 BF_SYSGET_PANEL		.EQU	$F4	; GET FRONT PANEL SWITCHES VAL
 BF_SYSGET_APPBNKS	.EQU	$F5	; GET APP BANK INFORMATION
 ;
+BF_SYSSET_SWITCH	.EQU	$C0	; SET NON VOLITILE SWITCH VALUE
 BF_SYSSET_TIMER		.EQU	$D0	; SET TIMER VALUE
 BF_SYSSET_SECS		.EQU	$D1	; SET SECONDS VALUE
 BF_SYSSET_BOOTINFO	.EQU	$E0	; SET BOOT INFORMATION
@@ -132,10 +143,43 @@ BF_SYSINT_INFO		.EQU	$00	; GET INTERRUPT SYSTEM INFO
 BF_SYSINT_GET		.EQU	$10	; GET INT VECTOR ADDRESS
 BF_SYSINT_SET		.EQU	$20	; SET INT VECTOR ADDRESS
 ;
+; 2 BYTE FUNCTION/SUBFUNCTION : BC_ => BIOS CALL
+; e.g. LOAD BC, BC_SYSxxxx (avoid load B and C seperately)
+;
+BC_SYSGET_CIOCNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_CIOCNT
+BC_SYSGET_CIOFN		.EQU	BF_SYSGET * $100 + BF_SYSGET_CIOFN
+BC_SYSGET_DIOCNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_DIOCNT
+BC_SYSGET_DIOFN		.EQU	BF_SYSGET * $100 + BF_SYSGET_DIOFN
+BC_SYSGET_RTCCNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_RTCCNT
+BC_SYSGET_DSKYCNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_DSKYCNT
+BC_SYSGET_VDACNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_VDACNT
+BC_SYSGET_VDAFN		.EQU	BF_SYSGET * $100 + BF_SYSGET_VDAFN
+BC_SYSGET_SNDCNT	.EQU	BF_SYSGET * $100 + BF_SYSGET_SNDCNT
+BC_SYSGET_SNDFN		.EQU	BF_SYSGET * $100 + BF_SYSGET_SNDFN
+;
+BC_SYSGET_SWITCH	.EQU	BF_SYSGET * $100 + BF_SYSGET_SWITCH
+BC_SYSGET_TIMER		.EQU	BF_SYSGET * $100 + BF_SYSGET_TIMER
+BC_SYSGET_SECS		.EQU	BF_SYSGET * $100 + BF_SYSGET_SECS
+BC_SYSGET_BOOTINFO	.EQU	BF_SYSGET * $100 + BF_SYSGET_BOOTINFO
+BC_SYSGET_CPUINFO	.EQU	BF_SYSGET * $100 + BF_SYSGET_CPUINFO
+BC_SYSGET_MEMINFO	.EQU	BF_SYSGET * $100 + BF_SYSGET_MEMINFO
+BC_SYSGET_BNKINFO	.EQU	BF_SYSGET * $100 + BF_SYSGET_BNKINFO
+BC_SYSGET_CPUSPD	.EQU	BF_SYSGET * $100 + BF_SYSGET_CPUSPD
+BC_SYSGET_PANEL		.EQU	BF_SYSGET * $100 + BF_SYSGET_PANEL
+BC_SYSGET_APPBNKS	.EQU	BF_SYSGET * $100 + BF_SYSGET_APPBNKS
+;
+BC_SYSSET_SWITCH	.EQU	BF_SYSSET * $100 + BF_SYSSET_SWITCH
+BC_SYSSET_TIMER		.EQU	BF_SYSSET * $100 + BF_SYSSET_TIMER
+BC_SYSSET_SECS		.EQU	BF_SYSSET * $100 + BF_SYSSET_SECS
+BC_SYSSET_BOOTINFO	.EQU	BF_SYSSET * $100 + BF_SYSSET_BOOTINFO
+BC_SYSSET_CPUSPD	.EQU	BF_SYSSET * $100 + BF_SYSSET_CPUSPD
+BC_SYSSET_PANEL		.EQU	BF_SYSSET * $100 + BF_SYSSET_PANEL
+;
 CIO_CONSOLE		.EQU	$80	; CIO UNIT NUM FOR CUR CON
 ;
 ; PRIMARY HARDWARE PLATFORMS
 ;
+PLT_NONE	.EQU	0		; UNDEFINED PLATFORM
 PLT_SBC		.EQU	1		; SBC ECB Z80 SBC
 PLT_ZETA	.EQU	2		; ZETA Z80 SBC
 PLT_ZETA2	.EQU	3		; ZETA Z80 V2 SBC
@@ -156,26 +200,28 @@ PLT_DUO		.EQU	17		; DUODYNE Z80 SYSTEM
 PLT_HEATH	.EQU	18		; HEATHKIT H8 Z80 SYSTEM
 PLT_EPITX	.EQU	19		; Z180 MINI-ITX
 PLT_MON		.EQU	20		; MONSPUTER
-PLT_STDZ180	.EQU	21		; GENESIS Z180 SYSTEM
+PLT_GMZ180	.EQU	21		; GENESIS Z180 SYSTEM
 PLT_NABU	.EQU	22		; NABU PERSONAL COMPUTER
+PLT_FZ80	.EQU	23		; S100 FPGA Z80
+PLT_RCEZ80	.EQU	24		; RCBUS W/ eZ80
 ;
 ; HBIOS GLOBAL ERROR RETURN VALUES
 ;
-ERR_NONE		.EQU	0	; SUCCESS
-;
-ERR_UNDEF		.EQU	-1	; UNDEFINED ERROR
-ERR_NOTIMPL		.EQU	-2	; FUNCTION NOT IMPLEMENTED
-ERR_NOFUNC		.EQU	-3	; INVALID FUNCTION
-ERR_NOUNIT		.EQU	-4	; INVALID UNIT NUMBER
-ERR_NOMEM		.EQU	-5	; OUT OF MEMORY
-ERR_RANGE		.EQU	-6	; PARAMETER OUT OF RANGE
-ERR_NOMEDIA		.EQU	-7	; MEDIA NOT PRESENT
-ERR_NOHW		.EQU	-8	; HARDWARE NOT PRESENT
-ERR_IO			.EQU	-9	; I/O ERROR
-ERR_READONLY		.EQU	-10	; WRITE REQUEST TO READ-ONLY MEDIA
-ERR_TIMEOUT		.EQU	-11	; DEVICE TIMEOUT
-ERR_BADCFG		.EQU	-12	; INVALID CONFIGURATION
-ERR_INTERNAL		.EQU	-13	; INTERNAL ERROR
+ERR_NONE	.EQU	0		; SUCCESS
+;
+ERR_UNDEF	.EQU	-1		; UNDEFINED ERROR
+ERR_NOTIMPL	.EQU	-2		; FUNCTION NOT IMPLEMENTED
+ERR_NOFUNC	.EQU	-3		; INVALID FUNCTION
+ERR_NOUNIT	.EQU	-4		; INVALID UNIT NUMBER
+ERR_NOMEM	.EQU	-5		; OUT OF MEMORY
+ERR_RANGE	.EQU	-6		; PARAMETER OUT OF RANGE
+ERR_NOMEDIA	.EQU	-7		; MEDIA NOT PRESENT
+ERR_NOHW	.EQU	-8		; HARDWARE NOT PRESENT
+ERR_IO		.EQU	-9		; I/O ERROR
+ERR_READONLY	.EQU	-10		; WRITE REQUEST TO READ-ONLY MEDIA
+ERR_TIMEOUT	.EQU	-11		; DEVICE TIMEOUT
+ERR_BADCFG	.EQU	-12		; INVALID CONFIGURATION
+ERR_INTERNAL	.EQU	-13		; INTERNAL ERROR
 ;
 ; HBIOS DIAG OPTIONS
 ;
@@ -190,46 +236,46 @@ DIAG_TRIG	.EQU	6		; TRIGGER
 DIAG_DISP	.EQU	DIAG_PROG	; DEFAULT
 ;
 #IF (DIAG_DISP == DIAG_PROG)
-DIAG_00 .EQU 00000000B	
-DIAG_01 .EQU 00000001B 
-DIAG_02 .EQU 00000011B 
-DIAG_03 .EQU 00000111B 
-DIAG_04 .EQU 00001111B 
-DIAG_05 .EQU 00011111B 
-DIAG_06 .EQU 00111111B 
-DIAG_07 .EQU 01111111B 
-DIAG_08 .EQU 11111111B 
-DIAG_09 .EQU 11111111B   
+DIAG_00 .EQU 00000000B
+DIAG_01 .EQU 00000001B
+DIAG_02 .EQU 00000011B
+DIAG_03 .EQU 00000111B
+DIAG_04 .EQU 00001111B
+DIAG_05 .EQU 00011111B
+DIAG_06 .EQU 00111111B
+DIAG_07 .EQU 01111111B
+DIAG_08 .EQU 11111111B
+DIAG_09 .EQU 11111111B
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_STEP)
-DIAG_00 .EQU 00000000B	
-DIAG_01 .EQU 00000001B 
-DIAG_02 .EQU 00000010B 
-DIAG_03 .EQU 00000100B 
-DIAG_04 .EQU 00001000B 
-DIAG_05 .EQU 00010000B 
-DIAG_06 .EQU 00100000B 
-DIAG_07 .EQU 01000000B 
+DIAG_00 .EQU 00000000B
+DIAG_01 .EQU 00000001B
+DIAG_02 .EQU 00000010B
+DIAG_03 .EQU 00000100B
+DIAG_04 .EQU 00001000B
+DIAG_05 .EQU 00010000B
+DIAG_06 .EQU 00100000B
+DIAG_07 .EQU 01000000B
 DIAG_08 .EQU 10000000B
 DIAG_09 .EQU 11111111B
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_ASCII)
-DIAG_00 .EQU '0'	
+DIAG_00 .EQU '0'
 DIAG_01 .EQU '1'
-DIAG_02 .EQU '2' 
-DIAG_03 .EQU '3' 
+DIAG_02 .EQU '2'
+DIAG_03 .EQU '3'
 DIAG_04 .EQU '4'
 DIAG_05 .EQU '5'
-DIAG_06 .EQU '6' 
+DIAG_06 .EQU '6'
 DIAG_07 .EQU '7'
-DIAG_08 .EQU '8' 
-DIAG_09 .EQU '9' 
+DIAG_08 .EQU '8'
+DIAG_09 .EQU '9'
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_BINARY)
-DIAG_00 .EQU 0	
+DIAG_00 .EQU 0
 DIAG_01 .EQU 1
 DIAG_02 .EQU 2
 DIAG_03 .EQU 3
@@ -238,7 +284,7 @@ DIAG_05 .EQU 5
 DIAG_06 .EQU 6
 DIAG_07 .EQU 7
 DIAG_08 .EQU 8
-DIAG_09 .EQU 9 
+DIAG_09 .EQU 9
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_7SEG)
@@ -247,30 +293,30 @@ DIAG_00 .EQU 00000000B ; BLANK
 DIAG_01 .EQU 01111110B ; 0
 DIAG_02 .EQU 00110000B ; 1
 DIAG_03 .EQU 01101101B ; 2
-DIAG_04 .EQU 01111001B ; 3 
+DIAG_04 .EQU 01111001B ; 3
 DIAG_05 .EQU 00110011B ; 4
 DIAG_06 .EQU 01011011B ; 5
-DIAG_07 .EQU 00011111B ; 6 
+DIAG_07 .EQU 00011111B ; 6
 DIAG_08 .EQU 01110000B ; 7
 DIAG_09 .EQU 01111111B ; 8
 DIAG_10 .EQU 01110011B ; 9
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_FLASH)
-DIAG_00 .EQU 00000000B ; OFF	
+DIAG_00 .EQU 00000000B ; OFF
 DIAG_01 .EQU 11111111B ; ON
-DIAG_02 .EQU 00000000B ; OFF	
+DIAG_02 .EQU 00000000B ; OFF
 DIAG_03 .EQU 11111111B ; ON
-DIAG_04 .EQU 00000000B ; OFF	
+DIAG_04 .EQU 00000000B ; OFF
 DIAG_05 .EQU 11111111B ; ON
-DIAG_06 .EQU 00000000B ; OFF	
+DIAG_06 .EQU 00000000B ; OFF
 DIAG_07 .EQU 11111111B ; ON
-DIAG_08 .EQU 00000000B ; OFF	
-DIAG_09 .EQU 11111111B ; ON 
+DIAG_08 .EQU 00000000B ; OFF
+DIAG_09 .EQU 11111111B ; ON
 #ENDIF
 ;
 #IF (DIAG_DISP == DIAG_TRIG)
-DIAG_00 .EQU 11111111B ; ON	
+DIAG_00 .EQU 11111111B ; ON
 DIAG_01 .EQU 11111111B ; ON
 DIAG_02 .EQU 11111111B ; ON
 DIAG_03 .EQU 11111111B ; ON
@@ -279,7 +325,7 @@ DIAG_05 .EQU 11111111B ; ON
 DIAG_06 .EQU 11111111B ; ON
 DIAG_07 .EQU 11111111B ; ON
 DIAG_08 .EQU 11111111B ; ON
-DIAG_09 .EQU 11111111B ; ON 
+DIAG_09 .EQU 11111111B ; ON
 #ENDIF
 ;
 ; FRONT PANEL SWITCHES
@@ -291,6 +337,21 @@ SW_DISK		.EQU	%00010000	; DISK/ROM
 SW_FLOP		.EQU	%00001000	; FLOP/HD
 SW_OPT		.EQU	%00000111	; SLICE/ROM APP
 ;
+; NVRAM SWITCHES
+;
+; used for identifying Non Volitile Switches
+NVSW_DEFBOOT	.EQU	1		; Default Boot NVRAM Switch
+NVSW_AUTOBOOT	.EQU	3		; Auto Boot NVRAM Switch
+;
+; NVRAM SWITCH BIT MASKS
+;
+; AUTO BOOT MASKS
+ABOOT_AUTO	.EQU	%00100000	; AUTO=1/MANUAL=0 BOOT
+ABOOT_TIMEOUT	.EQU	%00001111	; MENU TIMEOUT IN SECONDS, 0=IMMEDIAGE
+; DEFAULT BOOT MASKS
+DBOOT_ROM	.EQU	%10000000	; ROM=1/DISK=0 FLAG
+DBOOT_UNIT	.EQU	%01111111	; DISK UNIT
+;
 ; MEDIA ID VALUES
 ;
 MID_NONE	.EQU	0
@@ -305,6 +366,11 @@ MID_FD120	.EQU	8
 MID_FD111	.EQU	9
 MID_HDNEW	.EQU	10
 ;
+; SECTORS PER SLICE
+;
+SPS_HD512	.EQU	$4100
+SPS_HD1K	.EQU	$4000
+;
 ; CHAR DEVICE IDS
 ;
 CIODEV_UART	.EQU	$00
@@ -323,6 +389,8 @@ CIODEV_ESPCON	.EQU	$0C
 CIODEV_ESPSER	.EQU	$0D
 CIODEV_SCON	.EQU	$0E
 CIODEV_EF	.EQU	$0F
+CIODEV_SSER	.EQU	$10
+CIODEV_EZ80UART	.EQU	$11
 ;
 ; SUB TYPES OF CHAR DEVICES
 ;
@@ -357,12 +425,16 @@ RTCDEV_SIMH	.EQU	$02		; SIMH
 RTCDEV_INT	.EQU	$03		; PERIODIC INT TIMER
 RTCDEV_DS7	.EQU	$04		; DS1307 (I2C)
 RTCDEV_RP5	.EQU	$05		; RP5C01
+RTCDEV_DS5	.EQU	$06		; DS1305 (SPI)
+RTCDEV_EZ80	.EQU	$07		; EZ80 ON-CHIP RTC
 ;
 ; DSKY DEVICE IDS
 ;
 DSKYDEV_ICM	.EQU	$00		; Intersil ICM7218
 DSKYDEV_PKD	.EQU	$01		; Intel P8279
 DSKYDEV_H8P	.EQU	$02		; Heath H8 Panel
+DSKYDEV_GM7303	.EQU	$03		; Genesis GM7303 LCD Panel
+DSKYDEV_LCD	.EQU	$04		; RCBus LCD Panel
 ;
 ; VIDEO DEVICE IDS
 ;
@@ -373,6 +445,7 @@ VDADEV_TMS	.EQU	$03		; N8 ONBOARD VDA SUBSYSTEM - TMS 9918
 VDADEV_VGA	.EQU	$04		; ECB VGA3 - HITACHI HD6445
 VDADEV_VRC	.EQU	$05		; VGARC
 VDADEV_EF	.EQU	$06		; EF9345
+VDADEV_FV	.EQU	$07		; S100 FPGA VGA
 ;
 ; SOUND DEVICE IDS
 ;
@@ -432,10 +505,14 @@ HCB_SERDEV	.EQU	$10		; PRIMARY SERIAL DEVICE/UNIT (BYTE)
 HCB_CRTDEV	.EQU	$11		; CRT DISPLAY DEVICE/UNIT (BYTE)
 HCB_CONDEV	.EQU	$12		; ACTIVE CONSOLE DEVICE/UNIT (BYTE)
 HCB_DIAGLVL	.EQU	$13		; HBIOS DIAGNOSTIC LEVEL (BYTE)
+HCB_BOOTMODE	.EQU	$14		; HBIOS BOOTMODE (BYTE)
 ;
 HCB_HEAP	.EQU	$20		; DWORD ADDRESS OF START OF HEAP
 HCB_HEAPTOP	.EQU	$22		; DWORD ADDRESS OF TOP OF HEAP
 ;
+HCB_SW_DBOOT	.EQU	$31		; DEFAULT BOOT CONFIG (WORD)
+HCB_SW_AUTOB	.EQU	$33		; AUTO BOOT CONFIG (BYTE)
+;
 ; MEMORY BANK IDS (ONE BYTE EACH)
 HCB_BIDCOM	.EQU	$D8		; COMMON BANK (UPPER 32K)
 HCB_BIDUSR	.EQU	$D9		; USER BANK (TPA)
diff --git a/Source/HBIOS/hdsk.asm b/Source/HBIOS/hdsk.asm
index 6dfc426f..af357564 100644
--- a/Source/HBIOS/hdsk.asm
+++ b/Source/HBIOS/hdsk.asm
@@ -239,13 +239,13 @@ HDSK_RW0:
 	XOR	A			; A = 0
 	LD	(HDSK_RC),A		; CLEAR RETURN CODE
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,HDSK_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; CONVERT LBA HHHH:LLLL (4 BYTES)
 	; TO HDSK TRACK/SECTOR TTTT:SS (3 BYTES)
diff --git a/Source/HBIOS/icm.asm b/Source/HBIOS/icm.asm
index a0490cd4..49b558f7 100644
--- a/Source/HBIOS/icm.asm
+++ b/Source/HBIOS/icm.asm
@@ -27,24 +27,32 @@
 ; PB0 |	 $01 [FW]   $41 [0]    $81 [BK]	  $C1 [CL]
 ;
 ;
-ICM_PPIA		.EQU 	ICMPPIBASE + 0	; PORT A
-ICM_PPIB		.EQU 	ICMPPIBASE + 1	; PORT B
-ICM_PPIC		.EQU 	ICMPPIBASE + 2	; PORT C
-ICM_PPIX	 	.EQU 	ICMPPIBASE + 3	; PPI CONTROL PORT
+ICM_PPIA	.EQU 	ICMPPIBASE + 0	; PORT A
+ICM_PPIB	.EQU 	ICMPPIBASE + 1	; PORT B
+ICM_PPIC	.EQU 	ICMPPIBASE + 2	; PORT C
+ICM_PPIX	.EQU 	ICMPPIBASE + 3	; PPI CONTROL PORT
+;
+ICM_ROWS	.EQU	1		; DISPLAY ROWS	
+ICM_COLS	.EQU	8		; DISPLAY COLUMNS
 ;
 	DEVECHO	"ICM: IO="
 	DEVECHO	ICMPPIBASE
+	DEVECHO	", SIZE="
+	DEVECHO	ICM_COLS
+	DEVECHO	"X"
+	DEVECHO	ICM_ROWS
 	DEVECHO	"\n"
 ;
-;__ICM_INIT__________________________________________________________________________________________
+;__ICM_INIT________________________________________________________________________________________
 ;
 ;  CONFIGURE PARALLEL PORT AND CLEAR KEYPAD BUFFER
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 ICM_PREINIT:
-	LD	A,(DSKY_DISPACT)	; DSKY DISPATCHER ALREADY SET?
-	OR	A			; SET FLAGS
-	RET	NZ			; IF ALREADY ACTIVE, ABORT
+;
+	; RESET PRESENCE FLAG
+	XOR	A			; ASSUME NOT PRESENT
+	LD	(ICM_PRESENT),A		; SAVE IT
 ;
 	OR	$FF			; SIGNAL TO WAIT FOR KEY RELEASE
 	LD	(ICM_KEYBUF),A		; SET IT
@@ -82,9 +90,36 @@ ICM_PREINIT:
 	; REGISTER DRIVER WITH HBIOS
 	LD	BC,ICM_DISPATCH
 	CALL	DSKY_SETDISP
+;
+	CALL	ICM_SHOWVER
 ;
 	RET
 ;
+ICM_SHOWVER:
+	LD	HL,ICM_VERSTR
+	LD	DE,ICM_BUF
+	LD	BC,ICM_COLS
+	LDIR
+	LD	HL,ICM_BUF + 5
+	LD	A,RMJ
+	LD	A,(ICM_SEGMAP + RMJ)
+	OR	$80
+	LD	(HL),A
+	INC	HL
+	LD	A,(ICM_SEGMAP + RMN)
+	OR	$80
+	LD	(HL),A
+	INC	HL
+	LD	A,(ICM_SEGMAP + RUP)
+	LD	(HL),A
+;
+	; DISPLAY VERSION ON ICM
+	LD	C,0
+	LD	B,8
+	LD	HL,ICM_BUF
+	CALL	ICM_PUTBUF
+	RET
+;
 ICM_INIT:
 	CALL	NEWLINE			; FORMATTING
 	PRTS("ICM:$")			; FORMATTING
@@ -95,9 +130,18 @@ ICM_INIT:
 ;
 	LD	A,(ICM_PRESENT)		; PRESENT?
 	OR	A			; SET FLAGS
-	RET	NZ			; YES, ALL DONE
+	JR	NZ,ICM_INIT1		; YES, CONTINUE
 	PRTS(" NOT PRESENT$")		; NOT PRESENT
+	RET
 ;
+ICM_INIT1:
+	CALL	PC_SPACE
+	LD	A,ICM_COLS
+	CALL	PRTDEC8
+	LD	A,'X'
+	CALL	COUT
+	LD	A,ICM_ROWS
+	CALL	PRTDEC8
 	RET
 ;
 ; ICM DEVICE FUNCTION DISPATCH ENTRY
@@ -124,6 +168,10 @@ ICM_DISPATCH:
 	JP	Z,ICM_BEEP		; BEEP DSKY SPEAKER
 	DEC	A
 	JP	Z,ICM_DEVICE		; DEVICE INFO
+	DEC	A
+	JP	Z,ICM_MESSAGE		; HANDLE MESSAGE
+	DEC	A
+	JP	Z,ICM_EVENT		; HANDLE EVENT
 	SYSCHKERR(ERR_NOFUNC)
 	RET
 ;
@@ -187,47 +235,44 @@ ICM_GETKEY2:
 ; DISPLAY HEX VALUE FROM DE:HL
 ;
 ICM_SHOWHEX:
-	LD	BC,DSKY_HEXBUF		; POINT TO HEX BUFFER
+	LD	BC,ICM_TMP32		; POINT TO HEX BUFFER
 	CALL	ST32			; STORE 32-BIT BINARY THERE
-	LD	HL,DSKY_HEXBUF		; FROM: BINARY VALUE (HL)
-	LD	DE,DSKY_BUF		; TO: SEGMENT BUFFER (DE)
-	CALL	DSKY_BIN2SEG		; CONVERT
-	LD	HL,DSKY_BUF		; POINT TO SEGMENT BUFFER
-	; AND FALL THRU TO DISPLAY IT
+	LD	HL,ICM_TMP32		; FROM: BINARY VALUE (HL)
+	LD	DE,ICM_BUF		; TO: SEGMENT BUFFER (DE)
+	CALL	ICM_BIN2SEG		; CONVERT
+	LD	HL,ICM_BUF		; POINT TO SEGMENT BUFFER
+	CALL	ICM_PUTBUF		; DO IT
+	XOR	A			; SUCCESS
+	RET				; AND RETURN
 ;
 ; ICM SHOW BUFFER
 ;   HL: ADDRESS OF BUFFER
 ;
 ICM_SHOWSEG:
-	LD	A,82H			; SETUP PPI
-	OUT	(ICM_PPIX),A
-	CALL	ICM_COFF
-	LD	A,$F0			; 7218 -> (DATA COMING, NO DECODE)
-	OUT	(ICM_PPIA),A
-	CALL	ICM_STROBEC		; STROBE COMMAND
-	LD	B,DSKY_BUFLEN		; NUMBER OF DIGITS
-	LD	C,ICM_PPIA
-ICM_HEXOUT2:
-	LD	A,(HL)
-	CALL	ICM_XLAT		; MAP SEGMENTS
-	XOR	$80			; FIX DOT POLARITY
-	OUT	(C),A
-	INC	HL
-	DEC	B
-	JP	Z,ICM_STROBE		; DO FINAL STROBE AND RETURN
-	CALL	ICM_STROBE		; STROBE BYTE VALUE
-	JR	ICM_HEXOUT2
-ICM_STROBEC:	; COMMAND STROBE
-	LD	A,80H | 30H
-	JP	ICM_STROBE0
-ICM_STROBE:	; DATA STROBE
-	LD	A,00H | 30H		; SET WRITE STROBE
-ICM_STROBE0:
-	OUT	(ICM_PPIC),A		; OUT TO PORTC
-	CALL	DLY2			; DELAY
-ICM_COFF:
-	LD	A,40H | 30H		; QUIESCE
-	OUT	(ICM_PPIC),A		; OUT TO PORTC
+	; CONVERT FROM DBG ALPHABET TO SEG CODES
+	LD	B,ICM_COLS		; DO FOR ALL CHARS
+	LD	DE,ICM_BUF		; DESTINATION BUFFER
+ICM_SHOWSEG1:
+	LD	A,(HL)			; GET SOURCE VALUE
+	INC	HL			; BUMP FOR NEXT TIME
+	PUSH	AF			; SAVE IT
+	AND	$80			; ISOLATE HI BIT (DP)
+	LD	C,A			; SAVE IN C
+	POP	AF			; RECOVER ORIGINAL
+	AND	$7F			; REMOVE HI BIT (DP)
+	PUSH	HL			; SAVE IT
+	LD	HL,ICM_SEGMAP		; POINT TO XLAT MAP
+	CALL	ADDHLA			; OFFSET BY VALUE
+	LD	A,(HL)			; GET NEW VALUE
+	OR	C			; RECOMBINE WITH DP BIT
+	LD	(DE),A			; SAVE IT
+	INC	DE			; BUMP PTR
+	POP	HL			; RESTORE SOURCE PTR
+	DJNZ	ICM_SHOWSEG1		; LOOP TILL DONE
+;	
+	; DISPLAY CONVERTED BUFFER
+	LD	HL,ICM_BUF		; BUFFER
+	CALL	ICM_PUTBUF		; DO IT
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
@@ -249,10 +294,76 @@ ICM_DEVICE:
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
-;__ICM_KEY___________________________________________________________________________________________
+; MESSAGE HANDLER
+;
+ICM_MESSAGE:
+	LD	A,C			; GET MESSAGE ID
+	ADD	A,A			; WORD OFFSET
+	LD	HL,ICM_MSGTBL		; START OF MESSAGE TABLE
+	CALL	ADDHLA			; ADD OFFSET
+	LD	A,(HL)			; SAVE LSB
+	INC	HL			; BUMP TO MSB
+	LD	H,(HL)			; GET MSB
+	LD	L,A			; GET LSB
+;
+	; HL HAS POINTER TO MESSAGE
+	CALL	ICM_PUTBUF		; DISPLAY IT
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; EVENT HANDLER
+;
+ICM_EVENT:
+	LD	A,C			; EVENT ID
+	OR	A			; 0=CPUSPD
+	JR	Z,ICM_EVT_CPUSPD	; HANDLE CPU SPD CHANGE
+	DEC	A			; 1=DSKACT
+	JR	Z,ICM_EVT_DSKACT	; HANDLE DISK ACTIVITY
+	XOR	A
+	RET
+;
+; CPU SPEED CHANGE
+;
+ICM_EVT_CPUSPD:
+	XOR	A
+	RET
+;
+; DISK ACTIVITY
+;
+ICM_EVT_DSKACT:
+;
+	; USE DISK UNIT NUMBER FOR MSB
+	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
+	LD	(HB_DSKADR+3),A		; REPLACE HIGH BYTE W/ DISK #
+;
+	; CONVERT TO SEGMENT DISPLAY
+	LD	HL,HB_DSKADR		; INPUT POINTER
+	LD	DE,ICM_BUF		; BUF FOR OUTPUT
+	CALL	ICM_BIN2SEG		; CONVERT TO SEG DISPLAY
+;
+	; DECIMAL POINT FOR DISK UNIT SEPARATION
+	LD	HL,ICM_BUF+1		; SECOND CHAR OF DISP
+	SET	7,(HL)			; TURN ON DECIMAL PT
+;
+	; DECIMAL POINT TO INDICATE WRITE ACTION
+	LD	A,(HB_DSKFUNC)		; GET CURRENT I/O FUNCTION
+	CP	BF_DIOWRITE		; IS IT A WRITE?
+	JR	NZ,ICM_EVT_DSKACT2	; IF NOT, SKIP
+	LD	HL,ICM_BUF+7		; POINT TO CHAR 7
+	SET	7,(HL)			; SET WRITE DOT
+;
+ICM_EVT_DSKACT2:
+	; UPDATE DISPLAY
+	LD	HL,ICM_BUF		; SEG DISPLAY BUF TO HL
+	CALL	ICM_PUTBUF
+;
+	XOR	A
+	RET
+;
+;__ICM_KEY_________________________________________________________________________________________
 ;
 ;  CHECK FOR KEY PRESS W/ DEBOUNCE
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 ICM_KEY:
 	CALL	ICM_SCAN		; INITIAL KEY PRESS SCAN
@@ -273,10 +384,10 @@ ICM_KEY2:
 	OR	A			; SET FLAGS BASED ON VALUE
 	RET				; AND DONE
 ;
-;__ICM_SCAN__________________________________________________________________________________________
+;__ICM_SCAN________________________________________________________________________________________
 ;
 ;  SCAN KEYPAD AND RETURN RAW SCAN CODE (RETURNS ZERO IF NO KEY PRESSED)
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 ICM_SCAN:
 	LD	B,4			; 4 COLUMNS
@@ -300,37 +411,44 @@ ICM_SCAN2:
 	OR	E			; COMBINE WITH ROW
 	JP	ICM_RESET		; RETURN VIA RESET
 ;
+;__ICM_PUTBUF______________________________________________________________________________________
 ;
-; CONVERT FORM STANDARD SEGMENT ENCODING TO ICM ENCODING
-;
-;	From:		To:
-;	+--01--+	+--40--+
-;	20    02	02    20
-;	+--40--+	+--04--+
-;	10    04	08    10
-;	+--08--+  80	+--01--+  80
+;  WRITE BUFFER AT HL TO SEGMENT DISPLAY
+;__________________________________________________________________________________________________
 ;
-ICM_XLAT:
-	PUSH	BC
-	PUSH	HL
-	LD	C,A			; ORIG VALUE TO C
-	XOR	A			; INIT RESULT VALUE
-	LD	B,8
-	LD	HL,ICM_XTBL
-ICM_XLAT1:
-	RRC	C			; SHIFT NEXT BIT TO CF
-	JR	NC,ICM_XLAT2		; SKIP IF BIT NOT SET
-	OR	(HL)
-ICM_XLAT2:
+ICM_PUTBUF:
+	LD	A,82H			; SETUP PPI
+	OUT	(ICM_PPIX),A
+	CALL	ICM_COFF
+	LD	A,$F0			; 7218 -> (DATA COMING, NO DECODE)
+	OUT	(ICM_PPIA),A
+	CALL	ICM_STROBEC		; STROBE COMMAND
+	LD	B,ICM_COLS		; NUMBER OF DIGITS
+	LD	C,ICM_PPIA
+ICM_HEXOUT2:
+	LD	A,(HL)
+	XOR	$80			; FIX DOT POLARITY
+	OUT	(C),A
 	INC	HL
-	DJNZ	ICM_XLAT1
-	POP	HL
-	POP	BC
+	DEC	B
+	JP	Z,ICM_STROBE		; DO FINAL STROBE AND RETURN
+	CALL	ICM_STROBE		; STROBE BYTE VALUE
+	JR	ICM_HEXOUT2
+ICM_STROBEC:	; COMMAND STROBE
+	LD	A,80H | 30H
+	JP	ICM_STROBE0
+ICM_STROBE:	; DATA STROBE
+	LD	A,00H | 30H		; SET WRITE STROBE
+ICM_STROBE0:
+	OUT	(ICM_PPIC),A		; OUT TO PORTC
+	CALL	DLY2			; DELAY
+ICM_COFF:
+	LD	A,40H | 30H		; QUIESCE
+	OUT	(ICM_PPIC),A		; OUT TO PORTC
+	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
-ICM_XTBL	.DB	$40, $20, $10, $01, $08, $02, $04, $80
-;
-;_ _TABLE_____________________________________________________________________________________________________________
+;_KEYMAP_TABLE_____________________________________________________________________________________
 ;
 ICM_KEYMAP:
 	; POS	$00  $01  $02  $03  $04  $05  $06  $07
@@ -353,6 +471,35 @@ ICM_KEYBUF	.DB	0
 ; UTILTITY FUNCTIONS
 ;==================================================================================================
 ;
+; CONVERT 32 BIT BINARY TO 8 BYTE HEX SEGMENT DISPLAY
+;
+;	HL: ADR OF 32 BIT BINARY
+;	DE: ADR OF DEST LED SEGMENT DISPLAY BUFFER (8 BYTES)
+;
+ICM_BIN2SEG:
+	LD	B,4			; 4 BYTES OF INPUT
+	LD	A,B			; PUT IN ACCUM
+	CALL	ADDHLA			; PROCESS FROM END (LITTLE ENDIAN)
+ICM_BIN2SEG1:
+	DEC	HL			; DEC PTR (LITTLE ENDIAN)
+	LD	A,(HL)			; HIGH NIBBLE
+	RRCA \ RRCA \ RRCA \ RRCA	; ROTATE BITS
+	CALL	ICM_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
+	LD	A,(HL)			; LOW NIBBLE
+	CALL	ICM_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
+	DJNZ	ICM_BIN2SEG1		; LOOP FOR ALL INPUT BYTES
+	RET				; DONE
+;
+ICM_BIN2SEG_NIB:
+	PUSH	HL			; SAVE HL
+	LD	HL,ICM_SEGMAP		; POINT TO SEG MAP TABLE
+	AND	$0F			; ISOLATE LOW NIBBLE
+	CALL	ADDHLA			; OFFSET INTO TABLE
+	LD	A,(HL)			; LOAD VALUE FROM TABLE
+	POP	HL			; RESTORE HL
+	LD	(DE),A			; SAVE VALUE TO OUTPUT BUF
+	INC	DE			; BUMP TO NEXT OUTPUT BYTE
+	RET				; DONE
 ;
 ;==================================================================================================
 ; STORAGE
@@ -361,3 +508,37 @@ ICM_KEYBUF	.DB	0
 ; SEG DISPLAY WORKING STORAGE
 ;
 ICM_PRESENT	.DB	0
+ICM_BUF		.FILL	ICM_COLS
+ICM_TMP32	.FILL	4,0		; TEMP DWORD
+;
+ICM_VERSTR	.DB	$3E,$7F,$0A,$7B,$57,$00,$00,$00	; "HBIOS   "
+;
+ICM_SEGMAP:
+;
+	; POS	$00  $01  $02  $03  $04  $05  $06  $07
+	; GLYPH '0'  '1'  '2'  '3'  '4'  '5'  '6'  '7'
+
+	.DB	$7B, $30, $6D, $75, $36, $57, $5F, $70
+;
+	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
+	; GLYPH	'8'  '9'  'A'  'B'  'C'  'D'  'E'  'F'
+	.DB	$7F, $76, $7E, $1F, $4B, $3D, $4F, $4E
+;
+	; POS	$10  $11  $12  $13  $14  $15  $16  $17  $18  $19  $1A
+	; GLYPH	' '  '-'  '.'  'P'  'o'  'r'  't'  'A'  'd'  'r'  'G'
+	.DB	$00, $04, $00, $6E, $1D, $0C, $0F, $7E, $3D, $0C, $5F
+;
+ICM_MSGTBL:
+	.DW	ICM_MSG_LDR_SEL
+	.DW	ICM_MSG_LDR_BOOT
+	.DW	ICM_MSG_LDR_LOAD
+	.DW	ICM_MSG_LDR_GO
+	.DW	ICM_MSG_MON_RDY
+	.DW	ICM_MSG_MON_BOOT
+;
+ICM_MSG_LDR_SEL		.DB	$7F,$1D,$1D,$0F,$6C,$00,$00,$00	; "Boot?   "
+ICM_MSG_LDR_BOOT	.DB	$7F,$1D,$1D,$0F,$80,$80,$80,$00	; "Boot... "
+ICM_MSG_LDR_LOAD	.DB	$0B,$1D,$7E,$3D,$80,$80,$80,$00	; "Load... "
+ICM_MSG_LDR_GO		.DB	$5F,$1D,$80,$80,$80,$00,$00,$00	; "Go...   "
+ICM_MSG_MON_RDY		.DB	$04,$4B,$6E,$3B,$00,$3B,$6E,$04	; "-CPU UP-"
+ICM_MSG_MON_BOOT	.DB	$7F,$1D,$1D,$0F,$B0,$00,$00,$00	; "Boot!   "
diff --git a/Source/HBIOS/ide.asm b/Source/HBIOS/ide.asm
index 388c3181..96d2626b 100644
--- a/Source/HBIOS/ide.asm
+++ b/Source/HBIOS/ide.asm
@@ -18,6 +18,7 @@
 ;	MK4	$80	N/A	N/A
 ;	RC	$10	N/A	N/A
 ;	SMB	$E0	N/A	N/A
+;	GIDE	$20	$20	$28  - Genesis IDE controller - Note Read Hi Low - Write - Low High   
 ;
 ;	+-----------------------------------------------------------------------+
 ;	| CONTROL BLOCK REGISTERS						|
@@ -224,6 +225,9 @@ IDE_DEV0M:	; DEVICE 0, MASTER
   #IF (IDE0MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE0MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE0MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -259,6 +263,9 @@ IDE_DEV0S:	; DEVICE 0, SLAVE
   #IF (IDE0MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE0MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE0MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -297,6 +304,9 @@ IDE_DEV1M:	; DEVICE 1, MASTER
   #IF (IDE1MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE1MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE1MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -332,6 +342,9 @@ IDE_DEV1S:	; DEVICE 1, SLAVE
   #IF (IDE1MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE1MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE1MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -370,6 +383,9 @@ IDE_DEV2M:	; DEVICE 2, MASTER
   #IF (IDE2MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE2MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE2MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -405,6 +421,9 @@ IDE_DEV2S:	; DEVICE 2, SLAVE
   #IF (IDE2MODE == IDEMODE_DIDE)
 	DEVECHO	"DIDE"
   #ENDIF
+  #IF (IDE2MODE == IDEMODE_GIDE)
+	DEVECHO	"GIDE"
+  #ENDIF
   #IF (IDE2MODE == IDEMODE_MK4)
 	DEVECHO	"MK4"
   #ENDIF
@@ -435,7 +454,8 @@ IDE_DEV2S:	; DEVICE 2, SLAVE
 ; PICO TO WAIT FOR THE PICO DEVICE TO INITIALIZE.
 ;
 IDE_TOSLOW	.EQU	200		; SLOW TIMEOUT IS 20 SECS
-IDE_TONORM	.EQU	5		; NORMAL TIMEOUT IS 0.5 SECS
+;IDE_TONORM	.EQU	5		; NORMAL TIMEOUT IS 0.5 SECS
+IDE_TONORM	.EQU	200		; NORMAL TIMEOUT IS 0.5 SECS
 IDE_TOPICO	.EQU	50		; RC2014 SD PICO (5 SECONDS)
 ;
 ;=============================================================================
@@ -490,6 +510,9 @@ IDE_INIT2:
 	LD	DE,IDE_STR_MODE_RC	; MODE LABEL
 	CP	IDEMODE_RC		; TEST FOR MODE
 	JR	Z,IDE_INIT2A		; IF SO, DISPLAY IT
+	LD	DE,IDE_STR_MODE_GIDE	; MODE LABEL
+	CP	IDEMODE_GIDE		; TEST FOR MODE
+	JR	Z,IDE_INIT2A		; IF SO, DISPLAY IT
 	JR	IDE_INIT4		; NO MODE?  BYPASS ENTRY
 IDE_INIT2A:
 	CALL	WRITESTR		; DISPLAY MODE
@@ -919,13 +942,13 @@ IDE_PKT_RDSEC:
 #ENDIF
 	; SETUP LBA
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,IDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
 	LD	HL,IDE_PKTCMD_RW10+3	; START OF LBA FIELD IN CDB (MSB)
@@ -988,13 +1011,13 @@ IDE_PKT_WRSEC:
 #ENDIF
 	; SETUP LBA
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,IDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
 	LD	HL,IDE_PKTCMD_RW10+3	; START OF LBA FIELD IN CDB (MSB)
@@ -1020,13 +1043,13 @@ IDE_PKT_WRSEC:
 ;
 IDE_SETADDR:
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,IDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	; SEND 3 LOWEST BYTES OF LBA IN REVERSE ORDER
 	; IDE_REG_LBA3 HAS ALREADY BEEN SET
 	; HSTLBA2-0 --> IDE_REG_LBA2-0
@@ -1238,8 +1261,10 @@ IDE_GET8:
 	;LD	C,IDE_REG_DATA
 	LD	C,(IY+IDE_IOBASE)
 	LD	B,A
+	EZ80_IO
 	INIR
 	LD	B,A
+	EZ80_IO
 	INIR
 	RET
 ;
@@ -1252,10 +1277,19 @@ IDE_GET16:
 	RET
 ;
 IDE_GET16A:
+#IF (IDE0MODE == IDEMODE_GIDE)		; GENESIS BOARD IS REVERSED
+	LD	C,E			; PORT FOR MSB
+	INI				; GET IT, SAVE IT, AND DEC B
+	LD	C,D			; PORT FOR LSB
+	INI				; GET IT, SAVE IT, AND DEC B
+#ELSE
 	LD	C,D			; PORT FOR LSB
+	EZ80_IO
 	INI				; GET IT, SAVE IT, AND DEC B
 	LD	C,E			; PORT FOR MSB
+	EZ80_IO
 	INI				; GET IT, SAVE IT, AND DEC B
+#ENDIF
 	DEC	A
 	JR	NZ,IDE_GET16A		; LOOP TILL COUNTER EXHAUSTED
 	RET
@@ -1303,8 +1337,10 @@ IDE_PUT8:
 	;LD	C,IDE_REG_DATA
 	LD	C,(IY+IDE_IOBASE)
 	LD	B,A
+	EZ80_IO
 	OTIR
 	LD	B,A
+	EZ80_IO
 	OTIR
 	RET
 ;
@@ -1317,11 +1353,20 @@ IDE_PUT16:
 	RET
 ;
 IDE_PUT16A:
+#IF (IDE0MODE == IDEMODE_GIDE)		; GENESIS BOARD IS REVERSED
+	LD	C,E			; PORT FOR MSB
+	OUTI				; PUT IT AND DEC B
 	LD	C,D			; PORT FOR LSB
 	OUTI				; PUT IT AND DEC B
+#ELSE
+	LD	C,D			; PORT FOR LSB
+	EZ80_IO
+	OUTI				; PUT IT AND DEC B
 	LD	C,E			; PORT FOR MSB
+	EZ80_IO
 	OUTI				; PUT IT AND DEC B
 	DEC	A
+#ENDIF
 	JR	NZ,IDE_PUT16A		; LOOP TILL COUNTER EXHAUSTED
 	RET
 ;
@@ -1553,7 +1598,19 @@ IDE_WAIT001:
 	LD	C,(IY+IDE_IOBASE)
 	LD	B,8			; NUMBER OF REGISTERS TO CHECK
 IDE_WAIT002:
-	IN	A,(C)			; GET REGISTER VALUE
+
+	; THE EZ80_IO ROUTINE SEEMS TO ALWAYS RETURN $00 FOR UNOCCUPIED
+	; PORTS.  THAT CAUSES AN INORDINATE DELAY HERE, SO WE HANDLE
+	; 16 BIT I/O OURSELVES.
+
+	;;;EZ80_IO
+	;;;IN	A,(C)			; GET REGISTER VALUE
+	
+	PUSH	BC			; SAVE LOOP CONTROL
+	LD	B,IO_SEGMENT		; MSB FOR I/O
+	IN	A,(C)			; READ PORT
+	POP	BC			; RESTORE LOOP CONTROL
+	
 	;CALL	PC_SPACE
 	;CALL	PRTHEXBYTE
 	OR	A			; SET FLAGS
@@ -1978,6 +2035,7 @@ IDE_IN:
 	LD	C,(IY+IDE_IOBASE)							; 19TS
 	ADD	A,C									; 4TS
 	LD	C,A									; 4TS
+	EZ80_IO
 	IN	A,(C)									; 12TS
 	POP	BC									; 10TS
 	EX	(SP),HL			; RESTORE STACK					; 19TS
@@ -1989,12 +2047,23 @@ IDE_OUT:
 	EX	(SP),HL			; GET PARM POINTER
 	PUSH	BC
 	PUSH	AF
+;
+#IF (IDE0MODE == IDEMODE_GIDE)    ; SET TOP BYTE TO 0 FOR GENESIS BOARD 
+	LD	A,(HL)
+	LD	C,(IY+IDE_DATAHI)
+	ADD	A,C
+	LD	C,A
+	LD    A,0
+	OUT	(C),A
+#ENDIF
+;
 	LD	A,(HL)
 	INC	HL
 	LD	C,(IY+IDE_IOBASE)
 	ADD	A,C
 	LD	C,A
 	POP	AF
+	EZ80_IO 
 	OUT	(C),A
 	POP	BC
 	EX	(SP),HL			; RESTORE STACK
@@ -2138,6 +2207,7 @@ IDE_REGDUMP:
 	LD	C,A
 	LD	B,7
 IDE_REGDUMP1:
+	EZ80_IO
 	IN	A,(C)
 	CALL	PRTHEXBYTE
 	DEC	C
@@ -2188,6 +2258,7 @@ IDE_STR_MODE_DIO	.TEXT	"DIO$"
 IDE_STR_MODE_DIDE	.TEXT	"DIDE$"
 IDE_STR_MODE_MK4	.TEXT	"MK4$"
 IDE_STR_MODE_RC		.TEXT	"RC$"
+IDE_STR_MODE_GIDE	.TEXT	"GIDE$"
 ;
 IDE_STR_TYPEATA		.TEXT	" ATA$"
 IDE_STR_TYPEATAPI	.TEXT	" ATAPI$"
diff --git a/Source/HBIOS/imm.asm b/Source/HBIOS/imm.asm
index 237c6ed4..5daf5cfd 100644
--- a/Source/HBIOS/imm.asm
+++ b/Source/HBIOS/imm.asm
@@ -239,6 +239,7 @@ IMM_DETECT:
 	ADD	A,IMM_IOSETUP		; BUMP TO SETUP PORT
 	LD	C,A			; MOVE TO C FOR I/O
 	LD	A,$82			; CONFIG A OUT, B IN, C OUT
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	CALL	DELAY			; BRIEF DELAY FOR GOOD MEASURE
 #ENDIF
@@ -343,13 +344,13 @@ IMM_IO:
 ;
 	LD	(IMM_DSKBUF),HL		; SAVE DISK BUFFER ADDRESS
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;; #IF (DSKYDSKACT)
 	LD	A,IMM_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; SETUP LBA
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
@@ -479,6 +480,7 @@ IMM_GEOM:
 ;
 IMM_WRITEDATA:
 	LD	C,(IY+IMM_IOBASE)	; DATA PORT IS AT IOBASE
+	EZ80_IO
 	OUT	(C),A			; WRITE THE BYTE
 	;CALL	DELAY			; IS THIS NEEDED???
 	RET				; DONE
@@ -501,6 +503,7 @@ IMM_WRITECTRL:
 	LD	C,(IY+IMM_IOBASE)	; GET BASE IO ADDRESS
 	INC	C			; BUMP TO CONTROL PORT
 	INC	C
+	EZ80_IO
 	OUT	(C),A			; WRITE TO CONTROL PORT
 	;CALL	DELAY			; IS THIS NEEDED?
 	RET				; DONE
@@ -519,6 +522,7 @@ IMM_WRITECTRL:
 IMM_READSTATUS:
 	LD	C,(IY+IMM_IOBASE)	; IOBASE TO C
 	INC	C			; BUMP TO STATUS PORT
+	EZ80_IO
 	IN	A,(C)			; READ IT
 ;
 #IF (IMMMODE == IMMMODE_MG014)
@@ -963,9 +967,11 @@ IMM_GETBLOCK:
 ;
 IMM_GETBLOCK1:
 	EXX				; ALT REGS
+	EZ80_IO
 	OUT	(C),D			; SEND FIRST CLOCK
-IMM_GETBLOCK_A	.EQU	$+1
+	EZ80_IO
 	IN	A,($FF)			; GET LOW NIBBLE
+IMM_GETBLOCK_A	.EQU	$-1
 #IF (IMMMODE == IMMMODE_MG014)
 	AND	$0F			; RELEVANT BITS ONLY
 	ADD	A,MG014_STATMAPLO & $FF	; LOW BYTE OF MAP PTR
@@ -981,9 +987,11 @@ IMM_GETBLOCK_A	.EQU	$+1
 	RLCA				; MOVE TO LOW NIBBLE
 	LD	L,A			; SAVE NIBBLE IN L
 #ENDIF
+	EZ80_IO
 	OUT	(C),E			; SEND SECOND CLOCK
-IMM_GETBLOCK_B	.EQU	$+1
+	EZ80_IO
 	IN	A,($FF)			; GET HIGH NIBBLE
+IMM_GETBLOCK_B	.EQU	$-1
 #IF (IMMMODE == IMMMODE_MG014)
 	AND	$0F			; RELEVANT BITS ONLY
 	ADD	A,MG014_STATMAPHI & $FF	; HIGH BYTE OF MAP PTR
@@ -1079,13 +1087,17 @@ IMM_PUTBLOCK:
 IMM_PUTBLOCK1:
 	LD	A,(DE)			; GET NEXT BYTE
 IMM_PUTBLOCK_A	.EQU	$+1
+	EZ80_IO
 	OUT	($FF),A			; PUT ON BUS
 	INC	DE			; INCREMENT BUF POS
+	EZ80_IO
 	OUT	(C),H			; FIRST CLOCK
 	LD	A,(DE)			; GET NEXT BYTE
 IMM_PUTBLOCK_B	.EQU	$+1
+	EZ80_IO
 	OUT	($FF),A			; PUT ON BUS
 	INC	DE			; INCREMENT BUF POS
+	EZ80_IO
 	OUT	(C),L			; SECOND CLOCK
 	DJNZ	IMM_PUTBLOCK1		; LOOP
 	RET				; DONE
diff --git a/Source/HBIOS/kbd.asm b/Source/HBIOS/kbd.asm
index 67014d2b..75171cb0 100644
--- a/Source/HBIOS/kbd.asm
+++ b/Source/HBIOS/kbd.asm
@@ -169,6 +169,7 @@ KBD_IST:
 ;   A=0, Z SET FOR NOTHING PENDING, OTHERWISE DATA PENDING
 ;
 	LD	C,(IY+KBD_ST)		; STATUS PORT
+	EZ80_IO
 	IN	A,(C)			; GET STATUS
 	AND	$01			; ISOLATE INPUT PENDING BIT
 	RET
@@ -180,6 +181,7 @@ KBD_OST:
 ;   A=0, Z SET FOR NOT READY, OTHERWISE READY TO WRITE
 ;
 	LD	C,(IY+KBD_ST)		; STATUS PORT
+	EZ80_IO
 	IN	A,(C)			; GET STATUS
 	AND	$02			; ISOLATE OUTPUT EMPTY BIT
 	XOR	$02			; FLIP IT FOR APPROPRIATE RETURN VALUES
@@ -210,6 +212,7 @@ KBD_PUTCMD1:
 	CALL	PRTHEXBYTE
 #ENDIF
 	LD	C,(IY+KBD_CMD)		; COMMAND PORT
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 KBD_PUTCMD2:
 	XOR	A			; SIGNAL SUCCESS
@@ -239,6 +242,7 @@ KBD_PUTDATA1:
 	CALL	PRTHEXBYTE
 #ENDIF
 	LD	C,(IY+KBD_DAT)		; DATA PORT
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 KBD_PUTDATA2:
 	XOR	A			; SIGNAL SUCCESS
@@ -259,6 +263,7 @@ KBD_GETDATA0:
 	RET
 KBD_GETDATA1:
 	LD	C,(IY+KBD_DAT)		; DATA PORT
+	EZ80_IO
 	IN	A,(C)			; GET THE DATA VALUE
 #IF (KBDTRACE >= 2)
 	PUSH	AF
diff --git a/Source/HBIOS/layout.inc b/Source/HBIOS/layout.inc
new file mode 100644
index 00000000..5b6f0143
--- /dev/null
+++ b/Source/HBIOS/layout.inc
@@ -0,0 +1,101 @@
+;
+; The was extracted out of STD.ASM, so can be included
+; in BIOS apps that are NOT in HBIOS directory!
+;
+; =============
+; MEMORY LAYOUT
+; =============
+;
+SYS_SIZ		.EQU	$3000			; COMBINED SIZE OF SYSTEM AREA (OS + HBIOS PROXY)
+HBBUF_SIZ	.EQU	1024			; INVARIANT HBIOS PHYSICAL DISK BUFFER, 1K
+HBX_SIZ		.EQU	$200			; HBIOS PROXY SIZE (SUBJECT TO CHANGE)
+CPM_SIZ		.EQU	SYS_SIZ - HBX_SIZ	; NET SIZE OF ALL OS COMPONENTS (EXCLUDING HBIOS PROXY)
+CCP_SIZ		.EQU	$800			; INVARIANT SIZE OF CCP
+BDOS_SIZ	.EQU	$E00			; INVARIANT SIZE OF BDOS
+CBIOS_SIZ	.EQU	CPM_SIZ - CCP_SIZ - BDOS_SIZ	; CBIOS IS THE REMAINDER
+;
+MEMTOP		.EQU	$10000			; INVARIANT TOP OF Z80 ADDRESSABLE MEMORY
+BNKTOP		.EQU	$8000			; BANK MEMORY BARRIER
+;
+HBX_IMG		.EQU	$200			; LOC OF HBX IMAGE IN HBIOS IMAGE BANK
+;
+HBBUF_END	.EQU	BNKTOP			; END OF PHYSICAL DISK BUFFER IN HBIOS
+HBBUF_LOC	.EQU	HBBUF_END - HBBUF_SIZ	; START OF PHYSICAL DISK BUFFER
+HBX_END		.EQU	MEMTOP			; END OF HBIOS PROXY
+HBX_LOC		.EQU	HBX_END - HBX_SIZ	; START OF HBIOS PROXY
+CPM_END		.EQU	HBX_LOC			; END OF CPM COMPONENTS (INCLUDING CBIOS)
+CPM_LOC		.EQU	CPM_END - CPM_SIZ	; START OF CPM COMPONENTS
+CBIOS_END	.EQU	HBX_LOC			; END OF CBIOS
+CBIOS_LOC	.EQU	CBIOS_END - CBIOS_SIZ	; START OF CBIOS
+;
+CPM_ENT		.EQU	CBIOS_LOC		; CPM ENTRY POINT (IN CBIOS)
+;
+CPM_IMGSIZ	.EQU	$3000
+;
+; =================
+; ROM BANK 1 LAYOUT
+; =================
+;
+LDR_LOC		.EQU	$0000
+LDR_SIZ		.EQU	$1000
+LDR_END		.EQU	LDR_LOC +LDR_SIZ
+LDR_IMGLOC	.EQU	$0000
+;
+MON_LOC		.EQU	$EE00			; LOCATION OF MONITOR FOR RUNNING SYSTEM
+MON_SIZ		.EQU	$1000			; SIZE OF MONITOR BINARY IMAGE
+MON_END		.EQU	MON_LOC + MON_SIZ	; END OF MONITOR
+MON_IMGLOC	.EQU	LDR_IMGLOC + LDR_SIZ
+;
+ZSYS_IMGLOC	.EQU	MON_IMGLOC + MON_SIZ
+;
+CPM_IMGLOC	.EQU	ZSYS_IMGLOC + CPM_IMGSIZ
+;
+; =================
+; ROM BANK 2 LAYOUT
+; =================
+;
+FTH_LOC		.EQU	$0200			; CAMEL FORTH
+FTH_SIZ		.EQU	$1700
+FTH_END		.EQU	FTH_LOC + FTH_SIZ
+FTH_IMGLOC	.EQU	$0000
+
+BAS_LOC		.EQU	$0200			; NASCOM BASIC
+BAS_SIZ		.EQU	$2000
+BAS_END		.EQU	BAS_LOC + BAS_SIZ
+BAS_IMGLOC	.EQU	FTH_IMGLOC + FTH_SIZ
+;
+; NOTE FOLLOWING ARE COPY/PASTED INTO tastybasic.asm !!!!!!!!
+TBC_LOC		.EQU	$0A00			; TASTYBASIC
+TBC_SIZ		.EQU	$0A00
+TBC_END		.EQU	TBC_LOC + TBC_SIZ
+TBC_IMGLOC	.EQU	BAS_IMGLOC + BAS_SIZ
+;
+GAM_LOC		.EQU	$0200			; GAME 2048
+GAM_SIZ		.EQU	$0900
+GAM_END		.EQU	GAM_LOC + GAM_SIZ
+GAM_IMGLOC	.EQU	TBC_IMGLOC + TBC_SIZ
+;
+EGG_LOC		.EQU	$F000			; EASTER EGG
+EGG_SIZ		.EQU	$0200
+EGG_END		.EQU	EGG_LOC + EGG_SIZ
+EGG_IMGLOC	.EQU	GAM_IMGLOC + GAM_SIZ
+;
+NET_LOC		.EQU	$0100			; NETWORK BOOT
+NET_SIZ		.EQU	$1000
+NET_END		.EQU	NET_LOC + NET_SIZ
+NET_IMGLOC	.EQU	EGG_IMGLOC + EGG_SIZ
+;
+UPD_LOC		.EQU	$0200			; ROM UPDATER
+UPD_SIZ		.EQU	$0D00
+UPD_END		.EQU	UPD_LOC + UPD_SIZ
+UPD_IMGLOC	.EQU	NET_IMGLOC + NET_SIZ
+;
+NVR_LOC		.EQU	$0100			; NVRAM CONFIG
+NVR_SIZ		.EQU	$0800
+NVR_END		.EQU	NVR_LOC + NVR_SIZ
+NVR_IMGLOC	.EQU	UPD_IMGLOC + UPD_SIZ
+;
+USR_LOC		.EQU	$0200			; USER
+USR_SIZ		.EQU	BNKTOP - NVR_IMGLOC - NVR_SIZ
+USR_END		.EQU	USR_LOC + USR_SIZ
+USR_IMGLOC	.EQU	NVR_IMGLOC + NVR_SIZ
diff --git a/Source/HBIOS/lcd.asm b/Source/HBIOS/lcd.asm
new file mode 100644
index 00000000..0a49df9b
--- /dev/null
+++ b/Source/HBIOS/lcd.asm
@@ -0,0 +1,519 @@
+;
+;==================================================================================================
+; HARDWARE SUPPORT FOR HITACHI HD44780 OR EQUIVALENT
+;==================================================================================================
+;
+; CURRENTLY ASSUMES A 20X4 DISPLAY
+;
+; TYPICAL PORTS USED ON RCBUS ECOSYSTEM:
+;
+;		PRIMARY		ALT
+; FUNCTION	$DA		$AA
+; DATA		$DB		$AB
+;
+LCD_FUNC	.EQU	LCDBASE + 0	; WRITE
+LCD_STAT	.EQU	LCDBASE + 0	; READ
+LCD_DATA	.EQU	LCDBASE + 1	; READ/WRITE
+;
+LCD_ROWS	.EQU	4
+LCD_COLS	.EQU	20
+;
+LCD_FUNC_CLEAR	.EQU	$01		; CLEAR DISPLAY
+LCD_FUNC_HOME	.EQU	$02		; HOME CURSOR & REMOVE ALL SHIFTING
+LCD_FUNC_ENTRY	.EQU	$04		; SET CUR DIR AND DISPLAY SHIFT
+LCD_FUNC_DISP	.EQU	$08		; DISP, CUR, BLINK ON/OFF
+LCD_FUNC_SHIFT	.EQU	$10		; MOVE CUR / SHIFT DISP
+LCD_FUNC_SET	.EQU	$20		; SET INTERFACE PARAMS
+LCD_FUNC_CGADR	.EQU	$40		; SET CGRAM ADRESS
+LCD_FUNC_DDADR	.EQU	$80		; SET DDRAM ADDRESS
+;
+	DEVECHO	"LCD: IO="
+	DEVECHO	LCDBASE
+	DEVECHO	", SIZE="
+	DEVECHO	LCD_COLS
+	DEVECHO	"X"
+	DEVECHO	LCD_ROWS
+	DEVECHO	"\n"
+;
+; HARDWARE RESET PRIOR TO ROMWBW CONSOLE INITIALIZATION
+;
+LCD_PREINIT:
+;
+	; RESET	LCD CONTROLLER, DELAYS ARE FIXED, BUSY FLAG
+	; CANNOT BE USED YET, CONTROLLER MAY NOT EXIST!
+	LD	A,LCD_FUNC_SET | %11000
+	EZ80_IO
+	OUT	(LCD_FUNC),A
+	LD	DE,50000/16		; WAIT >40MS, WE USE 50MS
+	CALL	VDELAY			; DO IT
+	LD	A,LCD_FUNC_SET | %11000
+	EZ80_IO
+	OUT	(LCD_FUNC),A
+	LD	DE,5000/16		; WAIT >4.1MS, WE USE 5MS
+	CALL	VDELAY			; DO IT
+	LD	A,LCD_FUNC_SET | %11000
+	EZ80_IO
+	OUT	(LCD_FUNC),A
+	LD	DE,5000/16		; WAIT >4.1MS, WE USE 5MS
+	CALL	VDELAY			; DO IT
+;
+	; TEST FOR PRESENCE...
+	CALL	LCD_DETECT		; PROBE FOR HARDWARE
+	LD	A,(LCD_PRESENT)		; GET PRESENCE FLAG
+	OR	A			; SET FLAGS
+	RET	Z			; BAIL OUT IF NOT PRESENT
+;
+	; REGISTER DRIVER WITH HBIOS
+	LD	BC,LCD_DISPATCH
+	CALL	DSKY_SETDISP
+;
+	; WE CAN NOW DO NORMAL I/O W/ BUSY FLAG
+	LD	DE,LCD_INIT_SEQ		; INIT SEQUENCE
+	CALL	LCD_OUTFS		; SEND IT
+;
+	; PUT SOMETHING ON THE DISPLAY
+	LD	DE,LCD_STR_BAN
+	CALL	LCD_OUTDS
+;
+	; SECOND LINE
+	; CPU TYPE
+	LD	HL,$0100		; ROW 2, COL 0
+	CALL	LCD_GOTORC
+	LD	HL,LCD_CPU
+	LD	A,(HB_CPUTYPE)		; GET CPU TYPE
+	RLCA				; WORD OFFSET
+	CALL	ADDHLA			; ADD OFFSET
+	LD	E,(HL)			; GET LSB
+	INC	HL			; BUMP
+	LD	D,(HL)			; GET MSB
+	CALL	LCD_OUTDS
+	LD	DE,LCD_STR_XPU
+	CALL	LCD_OUTDS
+;
+	; "12.345 MHz" RIGHT JUSTIFIED
+	LD	HL,$010A		; ROW 2, COL 10
+	CALL	LCD_GOTORC
+	LD	HL,(CB_CPUKHZ)
+	PUSH	HL
+	LD	BC,10000		; 10 MHZ
+	SBC	HL,BC			; SUBTRACT
+	JR	NC,LCD_PREINIT1
+	LD	A,' '			; EXTRA PAD
+	CALL	LCD_OUTD
+LCD_PREINIT1:
+	POP	HL
+	CALL	LCD_PRTD3M		; PRINT AS DECIMAL WITH 3 DIGIT MANTISSA
+	LD	DE,LCD_STR_MHZ
+	CALL	LCD_OUTDS
+;
+	; THIRD LINE
+	LD	HL,$0200		; ROW 2, COL 0
+	CALL	LCD_GOTORC
+	LD	DE,LCD_STR_CFG
+	CALL	LCD_OUTDS
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+; POST CONSOLE INITIALIZATION
+;
+LCD_INIT:
+	CALL	NEWLINE			; FORMATTING
+	PRTS("LCD: IO=0x$")
+	LD	A,LCDBASE
+	CALL	PRTHEXBYTE
+;
+	LD	A,(LCD_PRESENT)		; GET PRESENCE FLAG
+	OR	A			; SET FLAGS
+	JR	Z,LCD_INIT1		; HANDLE NOT PRESENT
+;
+	CALL	PC_SPACE
+	LD	A,LCD_COLS
+	CALL	PRTDEC8
+	PRTS("X$")
+	LD	A,LCD_ROWS
+	CALL	PRTDEC8
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+LCD_INIT1:
+	PRTS(" NOT PRESENT$")
+	OR	$FF
+	RET
+;
+; DSKY DEVICE FUNCTION DISPATCH ENTRY
+;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
+;   B: FUNCTION (IN)
+;
+LCD_DISPATCH:
+	LD	A,B			; GET REQUESTED FUNCTION
+	AND	$0F			; ISOLATE SUB-FUNCTION
+	JP	Z,LCD_NULL		; RESET DSKY HARDWARE
+	DEC	A	
+	JP	Z,LCD_NULL		; GET KEYPAD STATUS
+	DEC	A	
+	JP	Z,LCD_NULL		; READ A KEY FROM THE KEYPAD
+	DEC	A	
+	JP	Z,LCD_NULL		; DISPLAY A 32-BIT BINARY VALUE IN HEX
+	DEC	A	
+	JP	Z,LCD_SHOWSEG		; DISPLAY SEGMENTS
+	DEC	A	
+	JP	Z,LCD_NULL		; SET KEYPAD LEDS
+	DEC	A	
+	JP	Z,LCD_NULL		; SET STATUS LED
+	DEC	A	
+	JP	Z,LCD_NULL		; BEEP DSKY SPEAKER
+	DEC	A
+	JP	Z,LCD_DEVICE		; DEVICE INFO
+	DEC	A
+	JP	Z,LCD_MESSAGE		; HANDLE MESSAGE
+	DEC	A
+	JP	Z,LCD_EVENT		; HANDLE EVENT
+	SYSCHKERR(ERR_NOFUNC)
+	RET
+;
+;
+;
+LCD_NULL:
+	XOR	A
+	RET
+;
+; DRAW DISPLAY USING DEBUG ALPHABET
+; HL = SOURCE BUFFER
+;
+LCD_SHOWSEG:
+	XOR	A
+	RET
+;
+; DEVICE INFORMATION
+;
+LCD_DEVICE:
+	LD	D,DSKYDEV_LCD		; D := DEVICE TYPE
+	LD	E,0			; E := PHYSICAL DEVICE NUMBER
+	LD	H,0			; H := MODE
+	LD	L,LCDBASE		; L := BASE I/O ADDRESS
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; MESSAGE HANDLER
+;
+LCD_MESSAGE:
+	LD	A,C			; GET MESSAGE ID
+	ADD	A,A			; WORD OFFSET
+	LD	HL,LCD_MSGTBL		; START OF MESSAGE TABLE
+	CALL	ADDHLA			; ADD OFFSET
+	LD	A,(HL)			; SAVE LSB
+	INC	HL			; BUMP TO MSB
+	LD	H,(HL)			; GET MSB
+	LD	L,A			; GET LSB
+;
+	EX	DE,HL
+	LD	HL,$0300		; ROW 3, COL 0
+	CALL	LCD_GOTORC
+	CALL	LCD_LINEOUT
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; EVENT HANDLER
+;
+LCD_EVENT:
+	LD	A,C			; EVENT ID
+	OR	A			; 0=CPUSPD
+	JR	Z,LCD_EVT_CPUSPD	; HANDLE CPU SPD CHANGE
+	DEC	A			; 1=DSKACT
+	JR	Z,LCD_EVT_DSKACT	; HANDLE DISK ACTIVITY
+	XOR	A
+	RET
+;
+; CPU SPEED CHANGE
+;
+LCD_EVT_CPUSPD:
+	XOR	A
+	RET
+;
+; FORMAT: "Disk #99  R:12345678"
+;          01234567890123456789
+;
+LCD_EVT_DSKACT:
+;
+	LD	HL,$0300		; ROW 3, COL 0
+	CALL	LCD_GOTORC		; SET DISPLAY ADDRESS
+;
+	LD	DE,LCD_STR_IO		; PREFIX
+	CALL	LCD_OUTDS		; SEND TO DISPLAY (COLS 0-5)
+;
+	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
+	CALL	LCD_EVT_DSKACT_BYTE	; SEND TO DISPLAY (COLS 6-7) HEX???
+;
+	LD	A,' '			; SEPARATOR
+	CALL	LCD_OUTD		; SEND TO DISPLAY (COL 8)
+	CALL	LCD_OUTD		; SEND TO DISPLAY (COL 9)
+;
+	LD	A,(HB_DSKFUNC)		; ACTIVE DISK FUNCTION
+	CP	BF_DIOWRITE		; WRITE?
+	LD	A,'W'			; ASSUME WRITE
+	JR	Z,LCD_EVT_DSKACT0	; GO AHEAD
+	LD	A,'R'			; OTHERWISE READ
+LCD_EVT_DSKACT0:
+	CALL	LCD_OUTD		; SEND CHAR (COL 10)
+;
+	LD	A,':'			; SEPARATOR
+	CALL	LCD_OUTD		; SEND TO DISPLAY (COL 11)
+;
+	LD	HL,HB_DSKADR+3		; END OF DWORD (MSB)
+	LD	B,4			; DO 4 BYTES
+;
+LCD_EVT_DSKACT1:
+	LD	A,(HL)			; GET BYTE
+	CALL	LCD_EVT_DSKACT_BYTE	; SEND TO DISPLAY (COLS 12-19)
+	DEC	HL			; DEC PTR
+	DJNZ	LCD_EVT_DSKACT1		; DO ALL 4 BYTES
+	RET
+;
+LCD_EVT_DSKACT_BYTE:
+	PUSH	AF			; SAVE BYTE
+	RRCA				; DO TOP NIBBLE FIRST
+	RRCA
+	RRCA
+	RRCA
+	CALL	HEXCONV			; CONVERT NIBBLE TO ASCII
+	CALL	LCD_OUTD		; SEND TO DISPLAY
+	POP	AF			; RECOVER CURRENT BYTE
+	CALL	HEXCONV			; CONVERT NIBBLE TO ASCII
+	CALL	LCD_OUTD		; SEND TO DISPLAY
+	RET				; DONE
+;
+; DETECT PRESENCE OF LCD CONTROLLER BY WRITING AND READING BACK
+; TEST VALUES IN THE CONTROLLER RAM.
+; WE DO NOT USE THE NORMAL READ/WRITE ROUTINES BECAUSE WE DO
+; NOT WANT TO STALL WAITING ON THE BUSY FLAG IF THE CONTROLLER
+; IS NOT PRESENT
+;
+LCD_DETECT:
+	; FIRST PASS W/ TEST VALUE $AA
+	LD	C,$AA
+	CALL	LCD_DETECT_PASS
+	JR	NZ,LCD_DETECT1
+;
+	; SECOND PASS W/ TEST VALUE $55
+	LD	C,$55
+	CALL	LCD_DETECT_PASS
+	JR	NZ,LCD_DETECT1
+;
+	; LCD PRESENT
+	OR	$FF
+	JR	LCD_DETECT_Z
+;
+LCD_DETECT1:
+	; LCD NOT PRESENT
+	XOR	A
+	JR	LCD_DETECT_Z
+;
+LCD_DETECT_Z:
+	LD	(LCD_PRESENT),A
+	RET
+;
+; WRITE AND READBACK VALUE IN C TO THE FIRST BYTE OF DDRAM
+; RETURN WITH COMPARE RESULT
+;
+LCD_DETECT_PASS:
+	CALL	LCD_DELAY		; WAIT
+	LD	A,LCD_FUNC_DDADR
+	EZ80_IO
+	OUT	(LCD_FUNC),A		; POINT TO FIRST BYTE
+	CALL	LCD_DELAY		; WAIT
+	LD	A,C			; TEST VALUE
+	EZ80_IO
+	OUT	(LCD_DATA),A		; WRITE IT
+	CALL	LCD_DELAY		; WAIT
+	LD	A,LCD_FUNC_DDADR
+	EZ80_IO
+	OUT	(LCD_FUNC),A		; POINT TO FIRST BYTE
+	CALL	LCD_DELAY
+	EZ80_IO
+	IN	A,(LCD_DATA)		; GET VALUE
+	CP	C			; AS WRITTEN?
+	RET
+;
+; DELAY USED DURING DETECT, >37US
+;
+LCD_DELAY:
+	CALL	DELAY			; 16US
+	CALL	DELAY			; 16US
+	JP	DELAY			; 16US, TOTAL 48US
+;
+; SEND FUNCTION CODE IN A
+;
+LCD_OUTF:
+	PUSH	AF			; SAVE CODE
+LCD_OUTF1:
+	EZ80_IO
+	IN	A,(LCD_STAT)		; GET STATUS
+	AND	$80			; ISOLATE BUSY FLAG
+	JR	NZ,LCD_OUTF1		; LOOP TILL NOT BUSY
+	POP	AF			; RECOVER CODE
+	EZ80_IO
+	OUT	(LCD_FUNC),A		; SEND IT
+	RET				; DONE
+;
+; SEND FUNCTION STRING
+; DE=STRING ADDRESS, NULL TERMINATED
+;
+LCD_OUTFS:
+	LD	A,(DE)			; NEXT BYTE TO SEND
+	OR	A			; SET FLAGS
+	RET	Z			; DONE WHEN NULL REACHED
+	INC	DE			; BUMP POINTER
+	CALL	LCD_OUTF		; SEND IT
+	JR	LCD_OUTFS		; LOOP AS NEEDED
+;
+; SEND DATA BYTE IN A
+;
+LCD_OUTD:
+	PUSH	AF			; SAVE BYTE
+LCD_OUTD1:
+	EZ80_IO
+	IN	A,(LCD_STAT)		; GET STATUS
+	AND	$80			; ISOLATE BUSY FLAG
+	JR	NZ,LCD_OUTD1		; LOOP TILL NOT BUSY
+	POP	AF			; RECOVER BYTE
+	EZ80_IO
+	OUT	(LCD_DATA),A		; SEND IT
+	RET				; DONE
+;
+; SEND STRING, BLANK PAD TO END OF LINE
+; ASSUMES WRITING TO FIRST COLUMN
+;
+LCD_LINEOUT:
+	LD	B,LCD_COLS
+	CALL	LCD_OUTDS
+LCD_LINEOUT1:
+	LD	A,' '
+	CALL	LCD_OUTD
+	DJNZ	LCD_LINEOUT1
+	RET
+;
+; SEND DATA STRING
+; DE=STRING ADDRESS, NULL TERMINATED
+;
+LCD_OUTDS:
+	LD	A,(DE)			; NEXT BYTE TO SEND
+	OR	A			; SET FLAGS
+	RET	Z			; DONE WHEN NULL REACHED
+	INC	DE			; BUMP POINTER
+	DEC	B			; PADDING COUNTER FOR ABOVE
+	CALL	LCD_OUTD		; SEND IT
+	JR	LCD_OUTDS		; LOOP AS NEEDED
+;
+; GET DATA BYTE INTO A
+;
+LCD_IND:
+	EZ80_IO
+	IN	A,(LCD_STAT)		; GET STATUS
+	AND	$80			; ISOLATE BUSY FLAG
+	JR	NZ,LCD_IND		; LOOP TILL NOT BUSY
+	POP	AF			; RECOVER BYTE
+	EZ80_IO
+	IN	A,(LCD_DATA)		; GET IT
+	RET				; DONE
+;
+; GOTO ROW(H),COL(L)
+;
+LCD_GOTORC:
+	PUSH	HL			; SAVE INCOMING
+	LD	A,H			; ROW # TO A
+	LD	HL,LCD_ROWSIDX		; POINT TO ROWS INDEX TABLE
+	CALL	ADDHLA			; INDEX TO ROW ENTRY
+	LD	A,(HL)			; GET RWO START
+	POP	HL			; RECOVER INCOMING
+	ADD	A,L			; ADD COLUMN
+	ADD	A,LCD_FUNC_DDADR	; APPLY FUNCTION BIT
+	JR	LCD_OUTF		; AND SEND IT
+;
+; PRINT VALUE OF HL AS THOUSANDTHS, IE. 0.000
+;
+LCD_PRTD3M:
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	LD	E,'0'
+	LD	BC,-10000
+	CALL	LCD_PRTD3M1
+	LD	E,0
+	LD	BC,-1000
+	CALL	LCD_PRTD3M1
+	LD	A,'.'
+	CALL	LCD_OUTD
+	LD	BC,-100
+	CALL	LCD_PRTD3M1
+	LD	C,-10
+	CALL	LCD_PRTD3M1
+	LD	C,-1
+	CALL	LCD_PRTD3M1
+	POP	HL
+	POP	DE
+	POP	BC
+	RET
+LCD_PRTD3M1:
+	LD	A,'0' - 1
+LCD_PRTD3M2:
+	INC	A
+	ADD	HL,BC
+	JR	C,LCD_PRTD3M2
+	SBC	HL,BC
+	CP	E
+	JR	Z,LCD_PRTD3M3
+	LD	E,0
+	CALL	LCD_OUTD
+LCD_PRTD3M3:
+	RET
+;
+; DATA STORAGE
+;
+LCD_PRESENT	.DB	0		; NON-ZERO WHEN HARDWARE DETECTED
+;
+LCD_ROWSIDX	.DB	$00,$40,$14,$54	; ROW START INDEX
+;
+LCD_INIT_SEQ:
+	.DB	LCD_FUNC_SET | %11000	; FUNCTION SET, 2 LINES, 5X8 FONT
+	.DB	LCD_FUNC_DISP		; DISPLAY OFF
+	.DB	LCD_FUNC_CLEAR		; CLEAR DISPLAY, HOME CURSOR
+	.DB	LCD_FUNC_ENTRY | $02	; INCREMENT, NO SHIFT
+	.DB	LCD_FUNC_DISP | $04	; DISPLAY ON, NO CURSOR, NO BLINK
+	.DB	$00			; TERMINATOR
+;
+LCD_STR_BAN	.DB	"RomWBW v", BIOSVER, 0
+LCD_STR_CFG	.DB	"Build: ", CONFIG, 0
+LCD_STR_IO	.DB	"Disk #", 0
+LCD_STR_XPU	.DB	" CPU",0
+;;;LCD_STR_SPD	.DB	"12.345",0
+LCD_STR_MHZ	.DB	" MHz",0
+;
+LCD_CPU		.DW	LCD_CPU_Z80
+		.DW	LCD_CPU_Z180
+		.DW	LCD_CPU_Z180K
+		.DW	LCD_CPU_Z180N
+		.DW	LCD_CPU_Z280
+		.DW	LCD_CPU_EZ80
+;
+LCD_CPU_Z80	.DB	"Z80",0
+LCD_CPU_Z180	.DB	"Z180",0
+LCD_CPU_Z180K	.DB	"Z180-K",0
+LCD_CPU_Z180N	.DB	"Z180-N",0
+LCD_CPU_Z280	.DB	"Z280",0
+LCD_CPU_EZ80	.DB	"eZ80",0
+;
+LCD_MSGTBL:
+	.DW	LCD_MSG_LDR_SEL
+	.DW	LCD_MSG_LDR_BOOT
+	.DW	LCD_MSG_LDR_LOAD
+	.DW	LCD_MSG_LDR_GO
+	.DW	LCD_MSG_MON_RDY
+	.DW	LCD_MSG_MON_BOOT
+;
+LCD_MSG_LDR_SEL		.DB	"Ready",0
+LCD_MSG_LDR_BOOT	.DB	"Boot...",0
+LCD_MSG_LDR_LOAD	.DB	"Load...",0
+LCD_MSG_LDR_GO		.DB	"Go...",0
+LCD_MSG_MON_RDY		.DB	"-CPU UP-",0
+LCD_MSG_MON_BOOT	.DB	"Boot!",0
diff --git a/Source/HBIOS/lpt.asm b/Source/HBIOS/lpt.asm
index 917a5a38..0445b269 100644
--- a/Source/HBIOS/lpt.asm
+++ b/Source/HBIOS/lpt.asm
@@ -50,7 +50,7 @@
 ;
 ;	D7	D6	D5	D4	D3	D2	D1	D0
 ;     +-------+-------+-------+-------+-------+-------+-------+-------+
-;     |	      |	      |	      | /ERR  | SEL   | POUT  | BUSY  | /ACK  |
+;     |       |       |       | /ERR  | SEL   | POUT  | BUSY  | /ACK  |
 ;     +-------+-------+-------+-------+-------+-------+-------+-------+
 ;
 ;  PORT 2 (OUTPUT):
@@ -62,40 +62,60 @@
 ;
 ;==================================================================================================
 ;
-; PRE-CONSOLE INITIALIZATION - DETECT AND INIT HARDWARE
+;  S100 STYLE INTERFACE:
+;  - S100 FPGA Z80
 ;
-LPT_PREINIT:
+;  BASE I/O PORT (OUTPUT):
 ;
-; SETUP THE DISPATCH TABLE ENTRIES
-; NOTE: INTS WILL BE DISABLED WHEN PREINIT IS CALLED AND THEY MUST
-; REMAIN DISABLED.
+;	D7	D6	D5	D4	D3	D2	D1	D0
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;     | PD7   | PD6   | PD5   | PD4   | PD3   | PD2   | PD1   | PD0   |
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;
+;  STATUS PORT (INPUT, BASE I/O - 1):
+;
+;	D7	D6	D5	D4	D3	D2	D1	D0
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;     |       |       |       |       |       |       | BUSY  | /ACK  |
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;
+;  CONTROL PORT (OUTPUT, BASE I/O - 1):
+;
+;	D7	D6	D5	D4	D3	D2	D1	D0
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;     |       |       |       |       |       |       |       | /STB  |
+;     +-------+-------+-------+-------+-------+-------+-------+-------+
+;
+;==================================================================================================
 ;
+LPT_INIT:
 	LD	B,LPT_CFGCNT		; LOOP CONTROL
 	XOR	A			; ZERO TO ACCUM
 	LD	(LPT_DEV),A		; CURRENT DEVICE NUMBER
 	LD	IY,LPT_CFG		; POINT TO START OF CFG TABLE
-LPT_PREINIT0:
+LPT_INIT0:
 	PUSH	BC			; SAVE LOOP CONTROL
 	CALL	LPT_INITUNIT		; HAND OFF TO UNIT INIT CODE
 	POP	BC			; RESTORE LOOP CONTROL
 ;
 	LD	A,(IY+1)		; GET THE LPT TYPE DETECTED
 	OR	A			; SET FLAGS
-	JR	Z,LPT_PREINIT2		; SKIP IT IF NOTHING FOUND
+	JR	Z,LPT_INIT2		; SKIP IT IF NOTHING FOUND
 ;
 	PUSH	BC			; SAVE LOOP CONTROL
 	PUSH	IY			; CFG ENTRY ADDRESS
 	POP	DE			; ... TO DE
 	LD	BC,LPT_FNTBL		; BC := FUNCTION TABLE ADDRESS
 	CALL	NZ,CIO_ADDENT		; ADD ENTRY IF LPT FOUND, BC:DE
+	CALL	LPT_PRTCFG		; PRINT IF NOT ZERO
 	POP	BC			; RESTORE LOOP CONTROL
 ;
-LPT_PREINIT2:
+LPT_INIT2:
 	LD	DE,LPT_CFGSIZ		; SIZE OF CFG ENTRY
 	ADD	IY,DE			; BUMP IY TO NEXT ENTRY
-	DJNZ	LPT_PREINIT0		; LOOP UNTIL DONE
+	DJNZ	LPT_INIT0		; LOOP UNTIL DONE
 ;
-LPT_PREINIT3:
+LPT_INIT3:
 	XOR	A			; SIGNAL SUCCESS
 	RET				; AND RETURN
 ;
@@ -119,24 +139,6 @@ LPT_INITUNIT:
 	; THE INITDEV ENTRY POINT THAT DOES NOT ENABLE/DISABLE INTS!
 	JP	LPT_INITDEVX		; IMPLEMENT IT AND RETURN
 ;
-;
-;
-LPT_INIT:
-	LD	B,LPT_CFGCNT		; COUNT OF POSSIBLE LPT UNITS
-	LD	IY,LPT_CFG		; POINT TO START OF CFG TABLE
-LPT_INIT1:
-	PUSH	BC			; SAVE LOOP CONTROL
-	LD	A,(IY+1)		; GET LPT TYPE
-	OR	A			; SET FLAGS
-	CALL	NZ,LPT_PRTCFG		; PRINT IF NOT ZERO
-	POP	BC			; RESTORE LOOP CONTROL
-	LD	DE,LPT_CFGSIZ		; SIZE OF CFG ENTRY
-	ADD	IY,DE			; BUMP IY TO NEXT ENTRY
-	DJNZ	LPT_INIT1		; LOOP TILL DONE
-;
-	XOR	A			; SIGNAL SUCCESS
-	RET				; DONE
-;
 ; DRIVER FUNCTION TABLE
 ;
 LPT_FNTBL:
@@ -166,6 +168,7 @@ LPT_OUT:
 	CALL	LPT_OST			; READY TO SEND?
 	JR	Z,LPT_OUT		; LOOP IF NOT
 	LD	C,(IY+3)		; PORT 0 (DATA)
+	EZ80_IO
 	OUT	(C),E			; OUTPUT DATA TO PORT
 #IF (LPTMODE == LPTMODE_SPP)
 	LD	A,%00001101		; SELECT & STROBE, LEDS OFF
@@ -173,8 +176,17 @@ LPT_OUT:
 #IF (LPTMODE == LPTMODE_MG014)
 	LD	A,%00000100		; SELECT & STROBE, LED OFF
 #ENDIF
+#IF (LPTMODE == LPTMODE_S100)
+	LD	A,%00000000		; STROBE
+#ENDIF
+#IF ((LPTMODE == LPTMODE_SPP) | (LPTMODE == LPTMODE_MG014))
 	INC	C			; PUT CONTROL PORT IN C
 	INC	C
+#ENDIF
+#IF (LPTMODE == LPTMODE_S100)
+	DEC	C			; PUT CONTROL PORT IN C
+#ENDIF
+	EZ80_IO
 	OUT	(C),A			; OUTPUT DATA TO PORT
 	CALL	DELAY
 #IF (LPTMODE == LPTMODE_SPP)
@@ -183,6 +195,10 @@ LPT_OUT:
 #IF (LPTMODE == LPTMODE_MG014)
 	LD	A,%00000101		; SELECT, LED OFF
 #ENDIF
+#IF (LPTMODE == LPTMODE_S100)
+	LD	A,%11111111		; STROBE
+#ENDIF
+	EZ80_IO
 	OUT	(C),A			; OUTPUT DATA TO PORT
 	CALL	DELAY
 	XOR	A			; SIGNAL SUCCESS
@@ -199,7 +215,13 @@ LPT_IST:
 ;
 LPT_OST:
 	LD	C,(IY+3)		; BASE PORT
+#IF ((LPTMODE == LPTMODE_SPP) | (LPTMODE == LPTMODE_MG014))
 	INC	C			; SELECT STATUS PORT
+#ENDIF
+#IF (LPTMODE == LPTMODE_S100)
+	DEC	C			; SELECT STATUS PORT
+#ENDIF
+	EZ80_IO
 	IN	A,(C)			; GET STATUS INFO
 #IF (LPTMODE == LPTMODE_SPP)
 	AND	%10000000		; ISOLATE /BUSY
@@ -227,13 +249,16 @@ LPT_INITDEVX:
 ;
 	LD	C,(IY+3)		; PORT 0 (DATA)
 	XOR	A			; CLEAR ACCUM
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 	INC	C			; BUMP TO
 	INC	C			; ... PORT 2
 	LD	A,%00001000		; SELECT AND ASSERT RESET, LEDS OFF
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 	CALL	LDELAY			; HALF SECOND DELAY
 	LD	A,%00001100		; SELECT AND DEASSERT RESET, LEDS OFF
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 	XOR	A			; SIGNAL SUCCESS
 	RET				; RETURN
@@ -245,17 +270,29 @@ LPT_INITDEVX:
 	ADD	A,3			; BUMP TO CONTROL PORT
 	LD	C,A			; MOVE TO C FOR I/O
 	LD	A,$82			; CONFIG A OUT, B IN, C OUT
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	DEC	C			; OUTPUT PORT
 	LD	A,$81			; STROBE OFF, SELECT ON, RES ON, LED ON
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 	CALL	LDELAY			; HALF SECOND DELAY
 	LD	A,$05			; STROBE OFF, SELECT ON, RES OFF, LED OFF
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 	XOR	A			; SIGNAL SUCCESS
 	RET				; RETURN
 #ENDIF
 ;
+#IF (LPTMODE == LPTMODE_S100)
+	LD	C,(IY+3)		; BASE PORT
+	DEC	C			; DEC TO CONTROL PORT
+	LD	A,$FF			; INIT VALUE
+	EZ80_IO
+	OUT	(C),A			; DO IT
+	RET				; RETURN
+#ENDIF
+;
 ;
 ;
 LPT_QUERY:
@@ -304,6 +341,7 @@ LPT_DETECT2:
 	INC	C			; PORT C FOR I/O
 	INC	C			; ...
 	XOR	A			; DEFAULT VALUE (TRI-STATE OFF)
+	EZ80_IO
 	OUT	(C),A			; SEND IT
 ;
 	;IN	A,(C)			; READ IT
@@ -319,7 +357,9 @@ LPT_DETECT2:
 	DEC	C			; BACK TO BASE PORT
 	DEC	C			; ...
 	LD	A,$A5			; TEST VALUE
+	EZ80_IO
 	OUT	(C),A			; SEND IT
+	EZ80_IO
 	IN	A,(C)			; READ IT BACK
 	CP	$A5			; CORRECT?
 	RET				; RETURN (ZF SET CORRECTLY)
@@ -340,11 +380,14 @@ LPT_DETECT:
 	ADD	A,3			; BUMP TO CONTROL PORT
 	LD	C,A			; PUT IN C
 	LD	A,$80			; SET PORT A TO WRITE
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 ;
 	LD	C,(IY+3)		; PPI PORT A
 	LD	A,$A5			; TEST VALUE
+	EZ80_IO
 	OUT	(C),A			; PUSH VALUE TO PORT
+	EZ80_IO
 	IN	A,(C)			; GET PORT VALUE
   #IF (LPTTRACE >= 3)
 	CALL	PC_SPACE
@@ -361,6 +404,13 @@ LPT_DETECT1:
 	RET				; DONE
 #ENDIF
 ;
+#IF (LPTMODE == LPTMODE_S100)
+LPT_DETECT:
+	; PORT ALWAYS EXISTS ON FPGA
+	LD	A,LPTMODE_S100		; RETURN CHIP TYPE
+	RET				; DONE
+#ENDIF
+;
 ;
 ;
 LPT_PRTCFG:
@@ -400,10 +450,12 @@ LPT_TYPE_MAP:
 		.DW	LPT_STR_NONE
 		.DW	LPT_STR_SPP
 		.DW	LPT_STR_MG014
+		.DW	LPT_STR_S100
 ;
 LPT_STR_NONE	.DB	"<NOT PRESENT>$"
 LPT_STR_SPP	.DB	"SPP$"
 LPT_STR_MG014	.DB	"MG014$"
+LPT_STR_S100	.DB	"S100$"
 ;
 ; WORKING VARIABLES
 ;
@@ -427,6 +479,9 @@ LPT0_CFG:
   #ENDIF
   #IF (LPTMODE == LPTMODE_MG014)
 	DEVECHO	"MG014"
+  #ENDIF
+  #IF (LPTMODE == LPTMODE_S100)
+	DEVECHO	"S100"
   #ENDIF
 	DEVECHO	", IO="
 	DEVECHO	LPT0BASE
@@ -450,6 +505,9 @@ LPT1_CFG:
   #ENDIF
   #IF (LPTMODE == LPTMODE_MG014)
 	DEVECHO	"MG014"
+  #ENDIF
+  #IF (LPTMODE == LPTMODE_S100)
+	DEVECHO	"S100"
   #ENDIF
 	DEVECHO	", IO="
 	DEVECHO	LPT1BASE
diff --git a/Source/HBIOS/md.asm b/Source/HBIOS/md.asm
index 0d8b3378..e7e7fcea 100644
--- a/Source/HBIOS/md.asm
+++ b/Source/HBIOS/md.asm
@@ -64,6 +64,8 @@ MD_DEVCNT	.EQU	($ - MD_CFGTBL) / MD_CFGSIZ
 ;
 ;
 ;
+
+
 MD_INIT:
 #IF (MDFFENABLE)
 	CALL	MD_FINIT		; PROBE FLASH CAPABILITY
@@ -301,13 +303,13 @@ MD_RW:
 MD_RW1:
 	PUSH	BC			; SAVE COUNTERS
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,MD_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	LD	HL,(MD_RWFNADR)		; GET PENDING IO FUNCTION ADDRESS
 #IF (MDFFENABLE)
diff --git a/Source/HBIOS/mky.asm b/Source/HBIOS/mky.asm
index 34650e82..3d32c00e 100644
--- a/Source/HBIOS/mky.asm
+++ b/Source/HBIOS/mky.asm
@@ -211,9 +211,19 @@ MKY_INIT:
 	; C - OUTPUT (ROW LINE SELECTION)
 
 	LD	A, PPICMD_COMMAND | PPICMD_GA_MODE_0 | PPICMD_GB_MODE_0 | PPICMD_A_IN | PPICMD_B_IN | PPICMD_CLOW_OUT | PPICMD_CHIGH_OUT
+	EZ80_IO
 	OUT	(MKY_REGCMD), A
 	LD	A, 64			; CAPS OFF
+	EZ80_IO
 	OUT	(MKY_REGC), A
+
+	; INSTALL INTERRUPT HANDLER
+	LD	HL, (VEC_TICK+1)
+	LD	(VEC_TICK_MKY+1), HL
+
+	LD	HL, MKY_INT
+	LD	(VEC_TICK+1), HL
+
 	RET
 ;
 ;__________________________________________________________________________________________________
@@ -368,8 +378,10 @@ MKY_SETLEDS:
 ; TURN THE CAPS LED LIGHT ON
 ;
 MKY_LEDCAPSON:
+	EZ80_IO
 	IN	A, (MKY_REGC)
 	RES	6, A
+	EZ80_IO
  	OUT	(MKY_REGC), A
 	RET
 ;
@@ -378,8 +390,10 @@ MKY_LEDCAPSON:
 ; TURN THE CAPS LED LIGHT OFF
 ;
 MKY_LEDCAPSOFF:
+	EZ80_IO
 	IN	A, (MKY_REGC)
 	SET	6, A
+	EZ80_IO
  	OUT	(MKY_REGC), A
 	RET
 
@@ -733,13 +747,14 @@ MKY_INTSCAN1:
 	LD      A, (MKY_SCNCNT)			; SCAN THE KEYBOARD EVERY 'SCAN_INT_PERIOD' INTERRUPTS.
 	DEC     A
 	LD      (MKY_SCNCNT), A
-	RET	NZ
+	JR	NZ, VEC_TICK_MKY
 
 	LD      A, SCAN_INT_PERIOD
 	LD      (MKY_SCNCNT), A
 
 ; SCAN KEYBOARD AND STORE ALL COLUMN RESULTS PER ROW AT MKY_NEWKEY
 ;
+	EZ80_IO
 	IN      A, (MKY_REGC)			; READ AND MASK THE CURRENT STATE OF PPI PORT C
 	AND     $F0
 	LD      D, A
@@ -747,7 +762,9 @@ MKY_INTSCAN1:
 	LD      HL, MKY_NEWKEY
 	LD	C, MKY_REGC
 MKY_SCAN_LP:
+	EZ80_IO
 	OUT     (C), D				; SET ACTIVE ROW
+	EZ80_IO
 	IN      A, (MKY_REGB)			; READ ACTIVE COLUMN DATA
 	LD      (HL), A				; STORE COLUMN READ VALUE
 	INC     HL
@@ -756,7 +773,9 @@ MKY_SCAN_LP:
 
 	LD	A, $FF				; NOTE THAT A SCAN HAS BEEN DONE
 	LD	(MKY_SCANNED), A
-	RET
+
+VEC_TICK_MKY:
+	JP	HB_TICK
 
 ;
 ;__________________________________________________________________________________________________
diff --git a/Source/HBIOS/nabu.asm b/Source/HBIOS/nabu.asm
index bb4db4f4..f9f3f8bd 100644
--- a/Source/HBIOS/nabu.asm
+++ b/Source/HBIOS/nabu.asm
@@ -1,15 +1,12 @@
 ;
 ;==================================================================================================
-; NABU INTERRUPT INTERCEPTOR
+; NABU HARDWARE DRIVER
 ;==================================================================================================
 ;
-NABU_INT1CLR	.EQU	$68
-NABU_TICCNT	.EQU	$FFEA		; TICCNT AT $FFEA IS COPIED DOWN TO $000B
-;
 ; NABU INTERRUPT ENABLE PORT AND STATUS PORTS ARE MANAGED BY THE
 ; PSG IO PORTS.
 ;
-; INTERRUPT ENABLE (OUTPUT) - PSG PORT A
+; NABU CONTROL PORT - INTERRUPT ENABLE (OUTPUT) - PSG PORT A
 ;
 ;	D7 - HCCA Receive
 ;	D6 - HCCA Send
@@ -20,7 +17,13 @@ NABU_TICCNT	.EQU	$FFEA		; TICCNT AT $FFEA IS COPIED DOWN TO $000B
 ;	D1 - Option Card 2 (J11)
 ;	DO - Option Card 3 (J12)
 ;
-; STATUS BYTE (INPUT) - PSG PORT B
+; THE CONTROL PORT IS WRITE ONLY AND THE BITS NEED TO BE MANAGED IN
+; MULTIPLE DRIVERS.  BELOW, WE ALLOCATE NBAU_CTLVAL AS A SHADOW
+; REGISTER FOR THE CONTROL PORT.  IT IS INITIALIZED TO ZERO HERE
+; (ALL INTS DISABLED).  THE INDIVIDUAL BITS ARE SET AS APPROPIATE IN
+; THE DRIVERS THAT WANT THE INTERRUPTS ENABLED (NABUKB, TMS).
+;
+; NABU STATUS PORT - STATUS BYTE (INPUT) - PSG PORT B
 ;
 ;	D7 - N.C.
 ;	D6 - Overrun Error (HCCA UART)
@@ -33,91 +36,54 @@ NABU_TICCNT	.EQU	$FFEA		; TICCNT AT $FFEA IS COPIED DOWN TO $000B
 ;
 ; PORTS TO MANAGE PSG
 ;
-NABU_RSEL	.EQU	$41		; SELECT PSG REGISTER
-NABU_RDAT	.EQU	$40		; WRITE TO SELECTED REGISTER
-NABU_RIN	.EQU	$40		; READ FROM SELECTED REGISTER
+NABU_BASE	.EQU	$40		; BASE PORT FOR NABU PSG
+NABU_RSEL	.EQU	NABU_BASE + 1	; SELECT PSG REGISTER
+NABU_RDAT	.EQU	NABU_BASE + 0	; WRITE TO SELECTED REGISTER
+NABU_RIN	.EQU	NABU_BASE + 0	; READ FROM SELECTED REGISTER
 ;
 	DEVECHO	"NABU: IO="
-	DEVECHO	NABU_INT1CLR
+	DEVECHO	NABU_BASE
 	DEVECHO	"\n"
 ;
-;
 ; HARDWARE RESET PRIOR TO ROMWBW CONSOLE INITIALIZATION
 ;
 NABU_PREINIT:
-	; INITIALIZE THE NABU PSG I/O PORTS
-	; PORT A IN WRITE MODE AND SET ALL BITS TO ZERO
-	; PORT B IN READ MODE
-;
-	CALL	NABU_SETPSG	
 ;
-;#IF (INTMODE == 1)
-;	; ADD TO INTERRUPT CHAIN
-;	LD	HL,NABU_STAT
-;	CALL	HB_ADDIM1		; ADD TO IM1 CALL LIST
-;#ENDIF
+	; RESET SHADOW REGISTER IN CASE WE ARE DOING AN HBIOS
+	; RESTART IN PLACE
+	XOR	A			; ALL INTERRUPTS DISABLED
+	LD	(NABU_CTLVAL),A		; SAVE IT
 ;
-;#IF (INTMODE == 2)
-;	LD	HL,NABU_STAT
-;	LD	(IVT(INT_NABUKB)),HL	; IVT INDEX
-;#ENDIF
-;	RET
-;
-NABU_INIT:
-	CALL	NEWLINE			; FORMATTING
-	PRTS("NABU: INT1$")
-;	XOR	A
-;	OUT	(NABU_INT1CLR),A
-	RET				; DONE
+	; INITIALIZE THE NABU PSG I/O PORTS
+	; PORT A (CONTROL PORT) IN WRITE MODE
+	; PORT B (STATUS PORT) IN READ MODE
+	; INITIALIZE THE CONTROL REGISTER
 ;
-NABU_SETPSG:
 	; SET I/O PORT MODES
 	LD	A,7			; PSG R7 (ENABLE REG)
 	OUT	(NABU_RSEL),A		; SELECT IT
-	LD	A,%01111111		; PORT B INPUT, PORT A OUPUT
+	LD	A,%01111111		; PORT B INPUT, PORT A OUPUT, AUDIO CHANNELS DISABLED
 	OUT	(NABU_RDAT),A		; SET IT
 ;
-	; SET PORT A TO VALUE 0
+	; INITIALIZE PORT A VALUE
 	LD	A,14			; PSG R14 (PORT A DATA)
 	OUT	(NABU_RSEL),A		; SELECT IT
-#IF (INTMODE > 0)
-  #IF (TMSTIMENABLE == TRUE)
-	LD	A,%00110000		; ENABLE NABU KB & VDP INTS
-  #ELSE
-	LD	A,%00100000		; ENABLE NABU KB INTS
-  #ENDIF
-#ELSE
-	XOR	A
-#ENDIF
-	OUT	(NABU_RDAT),A		; SET IT
+	LD	A,(NABU_CTLVAL)		; GET CTL VALUE SHADOW REG
+	OUT	(NABU_RDAT),A		; WRITE TO HARDWARE
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
+;
+; POST CONSOLE INITIALIZATION
+;
+NABU_INIT:
+	CALL	NEWLINE			; FORMATTING
+	PRTS("NABU: IO=$")
+	LD	A,NABU_BASE
+	CALL	PRTHEXBYTE
+	XOR	A			; SIGNAL SUCCESS
+	RET				; DONE
 ;
-	LD	A,15
-	OUT	(NABU_RSEL),A
-	IN	A,(NABU_RIN)
-	RET
-;
-;  INTERRUPT ENTRY POINT
-;
-NABU_STAT:
-;	CALL	NABU_SETPSG
-;	XOR	A
-;	OUT	(NABU_INT1CLR),A	; CLEAR THE INTERRUPT
-	LD	HL,(NABU_TICCNT)	; INCREMENT NABU TICK COUNTER
-	
-	
-	INC	HL			; ... IN HBIOS PROXY
-	LD	(NABU_TICCNT),HL
-;	LD	A,(NABU_HBTICK)		; INCREMENT INTERNAL TICK CTR
-;	INC	A
-;	LD	(NABU_HBTICK),A
-;	CP	$0A			; CALL HB_TICK EVERY 10 INTERRUPTS (50HZ)
-;	RET	NZ			; NOT TIME THEN JUST RETURN
-	CALL	HB_TICK			; DO NORMAL HBIOS TICK
-	XOR	A
-;	LD	(NABU_HBTICK),A		; RESET HBTICK COUNTER
-	INC	A			; INTERRUPT HANDLED
-	RET
-;
-NABU_HBTICK:
-	.DB	0			; INTERNAL TICK CTR
+; DATA STORAGE
 ;
+NABU_CTLVAL	.DB	0		; SHADOW VAL FOR NABU CONTROL REGISTER
diff --git a/Source/HBIOS/nabukb.asm b/Source/HBIOS/nabukb.asm
index 5d949032..2a5d79a9 100644
--- a/Source/HBIOS/nabukb.asm
+++ b/Source/HBIOS/nabukb.asm
@@ -21,52 +21,16 @@
 ; WILL TRANSLATE SPECIAL KEYS ($E0-$FF) TO ROMWBW EQUIVALENTS.  ALL
 ; OTHER KEYS WILL BE PASSED THROUGH AS IS.
 ;
-; KBPORT EQU	$90
-;
-; POLL FOR INPUT
-; KBLOOP:
-;	IN	A,(KBPORT+1)
-;	BIT	1,A    
-;	JR	Z,KBLOOP
-;	IN	A,(KBPORT)
-;
-; INIT:
-;	XOR	A
-;	CALL	SUB12
-;	CALL	SUB12
-;	CALL	SUB12
-;	CALL	SUB12
-;	CALL	SUB12
-;	LD	A,40H
-;	CALL	SUB12
-;	LD	A,4EH
-;	CALL	SUB12
-;	LD	A,04H
-;	CALL	SUB12
-;
 NABUKB_IODAT	.EQU	$90		; KEYBOARD DATA (READ)
 NABUKB_IOSTAT	.EQU	$91		; STATUS (READ), CMD (WRITE)
+;
+;
+NABUKB_BUFSZ	.EQU	16		; RECEIVE RING BUFFER SIZE
 ;
 	DEVECHO	"NABUKB: IO="
 	DEVECHO	NABUKB_IODAT
 	DEVECHO	"\n"
 ;
-; SETUP INTERRUPT HANDLING, IF ENABLED
-;
-NABUKB_PREINIT:
-#IF (INTMODE == 1)
-	; ADD TO INTERRUPT CHAIN
-	LD	HL,NABUKB_INT
-	CALL	HB_ADDIM1		; ADD TO IM1 CALL LIST
-#ENDIF
-;
-#IF (INTMODE == 2)
-	; INSTALL VECTOR
-	LD	HL,NABUKB_INT
-	LD	(IVT(INT_NABUKB)),HL	; IVT INDEX
-#ENDIF
-	RET
-;
 ; INITIALZIZE THE KEYBOARD CONTROLLER.
 ;
 NABUKB_INIT:
@@ -87,6 +51,28 @@ NABUKB_INIT:
 	CALL	NABUKB_PUT
 	LD	A,$04		; ENABLE RECV
 	CALL	NABUKB_PUT
+;
+#IF (INTMODE == 1)
+	; ADD TO INTERRUPT CHAIN
+	LD	HL,NABUKB_INT
+	CALL	HB_ADDIM1		; ADD TO IM1 CALL LIST
+#ENDIF
+;
+#IF (INTMODE == 2)
+	; INSTALL VECTOR
+	LD	HL,NABUKB_INT
+	LD	(IVT(INT_NABUKB)),HL	; IVT INDEX
+#ENDIF
+;
+#IF (INTMODE > 0)
+	; ENABLE KEYBOARD INTERRUPTS ON NABU INTERRUPT CONTROLLER
+	LD	A,14			; PSG R14 (PORT A DATA)
+	OUT	(NABU_RSEL),A		; SELECT IT
+	LD	A,(NABU_CTLVAL)		; GET NABU CTL PORT SHADOW REG
+	SET	5,A			; ENABLE VDP INTERRUPTS
+	LD	(NABU_CTLVAL),A		; UPDATE SHADOW REG
+	OUT	(NABU_RDAT),A		; WRITE TO HARDWARE
+#ENDIF
 ;
 	XOR	A
 	RET
@@ -105,96 +91,149 @@ NABUKB_INT:
 ;
 	;CALL	PC_LT			; *DEBUG*
 	IN	A,(NABUKB_IODAT)	; GET THE KEY
-	LD	E,A			; STASH IN REG E
+	;CALL	PRTHEXBYTE		; *DEBUG*
+	;CALL	PC_COMMA		; *DEBUG*
+	CALL	NABUKB_XB		; TRANSLATE THE KEY
 	;CALL	PRTHEXBYTE		; *DEBUG*
 	;CALL	PC_GT			; *DEBUG*
-;
-	LD	A,(NABUKB_KSTAT)	; GET KEY BUFFER STAT
-	OR	A			; SET FLAGS
-	RET	NZ			; BUFFER FULL, BAIL OUT W/ NZ (INT HANDLED), KEY DISCARDED
-;
-	LD	A,E			; RECOVER THE KEY CODE
-	CALL	NABUKB_XB		; TRANSLATE AND BUFFER KEY
-	OR	$FF			; SIGNAL INT HANDLED
-	RET				; DONE
+	JR	C,NABUKB_INTRCV4	; ABORT IF UNUSABLE KEY
+	LD	B,A			; SAVE BYTE READ
+	LD	HL,NABUKB_RCVBUF	; SET HL TO START OF BUF STRUCT
+	LD	A,(HL)			; GET COUNT
+	CP	NABUKB_BUFSZ		; COMPARE TO BUFFER SIZE
+	JR	Z,NABUKB_INTRCV4	; BAIL OUT IF BUFFER FULL, RCV BYTE DISCARDED
+	INC	A			; INCREMENT THE COUNT
+	LD	(HL),A			; AND SAVE IT
+	INC	HL			; HL NOW HAS ADR OF HEAD PTR
+	PUSH	HL			; SAVE ADR OF HEAD PTR
+	LD	A,(HL)			; DEREFERENCE HL
+	INC	HL
+	LD	H,(HL)
+	LD	L,A			; HL IS NOW ACTUAL HEAD PTR
+	LD	(HL),B			; SAVE CHARACTER RECEIVED IN BUFFER AT HEAD
+	INC	HL			; BUMP HEAD POINTER
+	POP	DE			; RECOVER ADR OF HEAD PTR
+	LD	A,L			; GET LOW BYTE OF HEAD PTR
+	SUB	NABUKB_BUFSZ+4		; SUBTRACT SIZE OF BUFFER AND POINTER
+	CP	E			; IF EQUAL TO START, HEAD PTR IS PAST BUF END
+	JR	NZ,NABUKB_INTRCV3	; IF NOT, BYPASS
+	LD	H,D			; SET HL TO
+	LD	L,E			; ... HEAD PTR ADR
+	INC	HL			; BUMP PAST HEAD PTR
+	INC	HL
+	INC	HL
+	INC	HL			; ... SO HL NOW HAS ADR OF ACTUAL BUFFER START
+NABUKB_INTRCV3:
+	EX	DE,HL			; DE := HEAD PTR VAL, HL := ADR OF HEAD PTR
+	LD	(HL),E			; SAVE UPDATED HEAD PTR
+	INC	HL
+	LD	(HL),D
+NABUKB_INTRCV4:
+	OR	$FF			; NZ SET TO INDICATE INT HANDLED
+	RET				; AND RETURN
 ;
 #ENDIF
 ;
 ; NORMAL HBIOS CHAR INPUT STATUS.  IF INTERRUPTS ARE NOT ACTIVE, THEN
 ; KEYBOARD POLLING IS IMPLEMENTED HERE.
 ;
+#IF (INTMODE == 0)
 NABUKB_STAT:
 	LD	A,(NABUKB_KSTAT)	; GET KEY WAITING STATUS
 	OR	A			; SET FLAGS
-#IF (INTMODE > 0)
-	JR	Z,NABUKB_STATX		; BAIL OUT W/ Z (NO KEY)
-	RET				; KEY WAITING, ALL SET
-#ELSE
 	RET	NZ			; KEY WAITING, ALL SET
 	IN	A,(NABUKB_IOSTAT)	; GET KBD STATUS
 	AND	$02			; CHECK DATA RDY BIT
 	JR	Z,NABUKB_STATX		; BAIL OUT W/ Z (NO KEY)
 	IN	A,(NABUKB_IODAT)	; GET THE KEY
-	CALL	NABUKB_XB		; TRANSLATE AND BUFFER KEY
-	LD	A,(NABUKB_KSTAT)	; GET NEW KEY WAITING STATUS
+	CALL	NABUKB_XB		; TRANSLATE/FILTER
+	JR	C,NABUKB_STATX		; IF CF SET, IGNORE
+	LD	(NABUKB_KEY),A		; BUFFER IT
+	LD	A,1			; SIGNAL KEY WAITING
+	LD	(NABUKB_KSTAT),A	; SAVE IT
 	OR	A			; SET FLAGS
 	RET				; DONE
-#ENDIF
 ;
 NABUKB_STATX:
 	XOR	A			; SIGNAL NO CHAR READY
 	JP	CIO_IDLE		; RETURN VIA IDLE PROCESSOR
 ;
-; ROUTINE TO TRANSLATE AND BUFFER INCOMING NABU KEYBOARD KEYCODES
+#ELSE
+NABUKB_STAT:
+	LD	A,(NABUKB_BUFCNT)	; GET BUFFER UTILIZATION COUNT
+	OR	A			; SET FLAGS
+	JP	Z,CIO_IDLE		; NOT READY, RETURN VIA IDLE PROCESSING
+	RET				; DONE
+#ENDIF
+;
+; ROUTINE TO FILTER AND TRANSLATE INCOMING NABU KEYBOARD KEYCODES
+; ENTER WITH RAW KEY CODE IN A
+; RESULT IN A, CF SET IF THE KEY SHOULD BE DISCARDED
 ;
 NABUKB_XB:
+	; $00 - $7F ARE NORMAL ASCII CHARS (PASS THROUGH)
 	BIT	7,A			; HIGH BIT IS SPECIAL CHAR
-	JR	Z,NABUKB_XB2		; IF NORMAL CHAR, BUFFER IT
-	CP	$90			; START OF ERR CODES
-	JR	C,NABUKB_XB1		; NOT ERR CODE, CONTINUE
+	JR	Z,NABUKB_XB2		; IF NORMAL CHAR, RETURN W/ CF CLEAR
+	; $80-$8F ARE JOSYSTICK PREFIXES (PASS THESE THROUGH)
+	CP	$90			; END OF JOYSTICK PREFIXES
+	JR	C,NABUKB_XB2		; IF JOY PRE, RETURN W/ CF CLEAR
+	; $90-$9F ARE KEYBOARD ERROR CODES (IGNORE THESE)
 	CP	$A0			; END OF ERR CODES
-	JR	NC,NABUKB_XB1		; NOT ERR CODE, CONTINUE
-	RET				; DISCARD ERR CODE AND RETURN
-NABUKB_XB1:
-	CP	$E0			; SPECIAL CHARACTER?
-	JR	C,NABUKB_XB2		; IF NOT, SKIP XLAT, BUFFER KEY
-	CALL	NABUKB_XLAT		; IF SO, TRANSLATE IT
-	RET	C			; CF INDICATES INVALID, DISCARD AND RETURN
-NABUKB_XB2:
-	LD	(NABUKB_KEY),A		; BUFFER IT
-	LD	A,1			; SIGNAL KEY WAITING
-	LD	(NABUKB_KSTAT),A	; SAVE IT
-	RET				; DONE
-;
-; ROUTINE TO TRANSLATE SPECIAL NABU KEYBOARD KEY CODES
-;
-NABUKB_XLAT:
+	JR	C,NABUKB_XB1		; IF ERR CODE, RETURN W/ CF SET
+	; $A0-$BF ARE JOYSTICK DATA (PASS THESE THROUGH)
+	CP	$C0			; END OF JOYSTICK DATA
+	JR	C,NABUKB_XB2		; IF JOY DATA, RETURN W/ CF CLEAR
+	; $C0-$DF ARE UNUSED CODES (IGNORE THESE)
+	CP	$E0			; END OF UNUSED CODES
+	JR	C,NABUKB_XB1		; IF UNUSED CODE, RETURN W/ CF SET
 	; NABU KEYBOARD USES $E0-$FF FOR SPECIAL KEYS
 	; HERE WE TRANSLATE TO ROMWBW SPECIAL KEYS AS BEST WE CAN
-	; CF IS SET ON RETURN IF KEY IS INVALID (NO TRANSLATION)
 	SUB	$E0			; ZERO OFFSET
-	RET	C			; ABORT IF < $E0, CF SET!
 	LD	HL,NABUKB_XTBL		; POINT TO XLAT TABLE
 	CALL	ADDHLA			; OFFSET BY SPECIAL KEY VAL
 	LD	A,(HL)			; GET TRANSLATED VALUE
 	OR	A			; CHECK FOR N/A (0)
 	RET	NZ			; XLAT OK, RET W/ CF CLEAR
-	SCF				; SIGNAL INVALID
+NABUKB_XB1:
+	; RETURN W/ CF SET (DISCARD RESULT)
+	SCF				; ELSE SIGNAL INVALID
 	RET				; DONE
-;
-NABUKB_XLAT1:
-	SCF				; SIGNAL INVALID
-	RET				; AND DONE
+NABUKB_XB2:
+	; RETURN W/ CF CLEAR (KEEP RESULT)
+	OR	A			; CLEAR CF
+	RET				; RETURN, CF CLEAR
 ;
 ; FLUSH KEYBOARD BUFFER
 ;
 NABUKB_FLUSH:
+#IF (INTMODE == 0)
 	XOR	A
 	LD	(NABUKB_KSTAT),A
+#ELSE
+	; RESET THE RECEIVE BUFFER
+	LD	DE,NABUKB_RCVBUF	; DE := CNT
+	XOR	A			; A := 0
+	LD	(DE),A			; _CNT = 0
+	INC	DE			; DE := ADR OF _HD
+	PUSH	DE			; SAVE IT
+	INC	DE
+	INC	DE
+	INC	DE
+	INC	DE			; DE := ADR OF _BUF
+	POP	HL			; HL := ADR OF _HD
+	LD	(HL),E
+	INC	HL
+	LD	(HL),D			; _HD := _BUF
+	INC	HL
+	LD	(HL),E
+	INC	HL
+	LD	(HL),D			; _TL := _BUF
+#ENDIF
 	RET
 ;
 ; WAIT FOR A KEY TO BE READY AND RETURN IT.
 ;
+#IF (INTMODE == 0)
 NABUKB_READ:
 	CALL	NABUKB_STAT		; CHECK FOR KEY READY
 	JR	Z,NABUKB_READ		; LOOP TIL ONE IS READY
@@ -205,6 +244,46 @@ NABUKB_READ:
 	LD	D,A			; NO KEYSTATE
 	LD	(NABUKB_KSTAT),A	; CLEAR KEY WAITING STATUS
 	RET				; AND RETURN
+#ELSE
+;
+NABUKB_READ:
+	CALL	NABUKB_STAT		; SEE IF CHAR AVAILABLE
+	JR	Z,NABUKB_READ		; LOOP UNTIL SO
+	HB_DI				; AVOID COLLISION WITH INT HANDLER
+	LD	HL,NABUKB_RCVBUF	; SET HL TO START OF BUF STRUCT
+	LD	A,(HL)			; GET COUNT
+	DEC	A			; DECREMENT COUNT
+	LD	(HL),A			; SAVE UPDATED COUNT
+	INC	HL			; HL := ADR OF TAIL PTR
+	INC	HL			; "
+	INC	HL			; "
+	PUSH	HL			; SAVE ADR OF TAIL PTR
+	LD	A,(HL)			; DEREFERENCE HL
+	INC	HL
+	LD	H,(HL)
+	LD	L,A			; HL IS NOW ACTUAL TAIL PTR
+	LD	C,(HL)			; C := CHAR TO BE RETURNED
+	INC	HL			; BUMP TAIL PTR
+	POP	DE			; RECOVER ADR OF TAIL PTR
+	LD	A,L			; GET LOW BYTE OF TAIL PTR
+	SUB	NABUKB_BUFSZ+2		; SUBTRACT SIZE OF BUFFER AND POINTER
+	CP	E			; IF EQUAL TO START, TAIL PTR IS PAST BUF END
+	JR	NZ,NABUKB_READ2		; IF NOT, BYPASS
+	LD	H,D			; SET HL TO
+	LD	L,E			; ... TAIL PTR ADR
+	INC	HL			; BUMP PAST TAIL PTR
+	INC	HL			; ... SO HL NOW HAS ADR OF ACTUAL BUFFER START
+NABUKB_READ2:
+	EX	DE,HL			; DE := TAIL PTR VAL, HL := ADR OF TAIL PTR
+	LD	(HL),E			; SAVE UPDATED TAIL PTR
+	INC	HL			; "
+	LD	(HL),D			; "
+	LD	E,C			; MOVE CHAR TO RETURN TO E
+	HB_EI				; INTERRUPTS OK AGAIN
+	XOR	A			; SIGNAL SUCCESS
+	RET				; AND DONE
+;
+#ENDIF
 ;
 ; HELPER ROUTINE TO WRITE 
 ;
@@ -219,8 +298,20 @@ NABUKB_PUT:
 ;
 ;
 ;
-NABUKB_KSTAT	.DB	0	; KEY STATUS
-NABUKB_KEY	.DB	0	; KEY BUFFER
+#IF (INTMODE == 0)
+NABUKB_KSTAT	.DB	0		; KEY STATUS
+NABUKB_KEY	.DB	0		; KEY BUFFER
+#ELSE
+;
+; RECEIVE BUFFER
+;
+NABUKB_RCVBUF:
+NABUKB_BUFCNT	.DB	0		; CHARACTERS IN RING BUFFER
+NABUKB_HD	.DW	NABUKB_BUF	; BUFFER HEAD POINTER
+NABUKB_TL	.DW	NABUKB_BUF	; BUFFER TAIL POINTER
+NABUKB_BUF	.FILL	NABUKB_BUFSZ,0	; RECEIVE RING BUFFER
+NABUKB_BUFEND	.EQU	$		; END OF BUFFER
+#ENDIF
 ;
 ; THIS TABLE TRANSLATES THE NABU KEYBOARD SPECIAL CHARS INTO
 ; ANALOGOUS ROMWBW STANDARD SPECIAL CHARACTERS.  THE TABLE STARTS WITH
diff --git a/Source/HBIOS/pkd.asm b/Source/HBIOS/pkd.asm
index 5da7dda4..b89d794c 100644
--- a/Source/HBIOS/pkd.asm
+++ b/Source/HBIOS/pkd.asm
@@ -21,12 +21,13 @@
 ;                          |+-------- SHIFT
 ;                          +--------- CONTROL
 ;
-;	00	08	10	18	23
-;	01	09	11	19	22
-;	02	0A	12	1A	21
-;	03	0B	13	1B	20
-;	04	0C	14	1C	SHIFT
-;	05	0D	15	1D	CTRL
+;      _____C0_________C1_________C2_________C3__________C4____
+;  R0 |	 $00 [D]    $08 [E]    $10 [F]    $18 [BO]   $20 [F4]
+;  R1 |	 $01 [A]    $09 [B]    $11 [C]    $19 [GO]   $21 [F3]
+;  R2 |	 $02 [7]    $0A [8]    $12 [9]    $1A [EX]   $22 [F2]
+;  R3 |	 $03 [4]    $0B [5]    $13 [6]    $1B [DE]   $23 [F1]
+;  R5 |	 $04 [1]    $0C [2]    $14 [3]    $1C [EN]  +$40 [SH]
+;  R6 |	 $05 [FW]   $0D [0]    $15 [BK]   $1D [CL]  +$80 [CTL]
 ;
 ; LED BIT MAP (BIT VALUES)
 ;
@@ -34,18 +35,21 @@
 ;	---	---	---	---	---	---	---	---
 ;	01	01	01	01	01
 ;	02	02	02	02	02
-;	04      04      04      04	04
-;	08      08      08      08	08
-;	10      10      10      10	10
-;	20      20      20      20	20	L1	L2 	BUZZ
+;	04	04	04	04	04
+;	08	08	08	08	08
+;	10	10	10	10	10
+;	20	20	20	20	20	L1	L2 	BUZZ
 ;
 PKD_PPIA	.EQU 	PKDPPIBASE + 0	; PORT A
 PKD_PPIB	.EQU 	PKDPPIBASE + 1	; PORT B
 PKD_PPIC	.EQU 	PKDPPIBASE + 2	; PORT C
 PKD_PPIX	.EQU 	PKDPPIBASE + 3	; PPI CONTROL PORT
 ;
-PKD_PPIX_RD:	.EQU	%10010010	; PPIX VALUE FOR READS
-PKD_PPIX_WR:	.EQU	%10000010	; PPIX VALUE FOR WRITES
+PKD_PPIX_RD	.EQU	%10010010	; PPIX VALUE FOR READS
+PKD_PPIX_WR	.EQU	%10000010	; PPIX VALUE FOR WRITES
+;	
+PKD_ROWS	.EQU	1		; DISPLAY ROWS	
+PKD_COLS	.EQU	8		; DISPLAY COLUMNS
 ;
 ; PIO CHANNEL C:
 ;
@@ -68,20 +72,25 @@ PKD_PRESCL	.EQU	PKDOSC/100000		; PRESCALER
 ;
 	DEVECHO	"PKD: IO="
 	DEVECHO	PKDPPIBASE
+	DEVECHO	", SIZE="
+	DEVECHO	PKD_COLS
+	DEVECHO	"X"
+	DEVECHO	PKD_ROWS
 	DEVECHO	"\n"
 ;
-;__PKD_PREINIT_______________________________________________________________________________________
+;__PKD_PREINIT_____________________________________________________________________________________
 ;
 ;  CONFIGURE PARALLEL PORT AND INITIALIZE 8279
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 ;
 ; HARDWARE RESET 8279 BY PULSING RESET LINE
 ;
 PKD_PREINIT:
-	LD	A,(DSKY_DISPACT)	; DSKY DISPATCHER ALREADY SET?
-	OR	A			; SET FLAGS
-	RET	NZ			; IF ALREADY ACTIVE, ABORT
+;
+	; RESET PRESENCE FLAG
+	XOR	A			; ASSUME NOT PRESENT
+	LD	(PKD_PRESENT),A		; SAVE IT
 ;
 	; CHECK FOR PPI
 	CALL	PKD_PPIDETECT		; TEST FOR PPI HARDWARE
@@ -117,6 +126,8 @@ PKD_PREINIT:
 	; REGISTER DRIVER WITH HBIOS
 	LD	BC,PKD_DISPATCH
 	CALL	DSKY_SETDISP
+;
+	CALL	PKD_SHOWVER
 ;
 	RET
 ;
@@ -127,10 +138,35 @@ PKD_REINIT:
 	CALL	PKD_CMD
 	JP	PKD_RESET
 ;
-;__PKD_INIT__________________________________________________________________________________________
+PKD_SHOWVER:
+	LD	HL,PKD_VERSTR
+	LD	DE,PKD_BUF
+	LD	BC,PKD_COLS
+	LDIR
+	LD	HL,PKD_BUF + 5
+	LD	A,RMJ
+	LD	A,(PKD_SEGMAP + RMJ)
+	OR	$80
+	LD	(HL),A
+	INC	HL
+	LD	A,(PKD_SEGMAP + RMN)
+	OR	$80
+	LD	(HL),A
+	INC	HL
+	LD	A,(PKD_SEGMAP + RUP)
+	LD	(HL),A
+;
+	; DISPLAY VERSION ON PKD
+	LD	C,0
+	LD	B,8
+	LD	HL,PKD_BUF
+	CALL	PKD_PUTSTR
+	RET
+;
+;__PKD_INIT________________________________________________________________________________________
 ;
 ;  DISPLAY DSKY INFO
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 PKD_INIT:
 	CALL	NEWLINE			; FORMATTING
@@ -142,9 +178,19 @@ PKD_INIT:
 ;
 	LD	A,(PKD_PRESENT)		; PRESENT?
 	OR	A			; SET FLAGS
-	RET	NZ			; YES, ALL DONE
+	JR	NZ,PKD_INIT1		; YES, CONTINUE
 	PRTS(" NOT PRESENT$")		; NOT PRESENT
-	RET				; DONE
+	RET
+;
+PKD_INIT1:
+	CALL	PC_SPACE
+	LD	A,PKD_COLS
+	CALL	PRTDEC8
+	LD	A,'X'
+	CALL	COUT
+	LD	A,PKD_ROWS
+	CALL	PRTDEC8
+	RET
 ;
 ; DSKY DEVICE FUNCTION DISPATCH ENTRY
 ;   A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
@@ -170,6 +216,10 @@ PKD_DISPATCH:
 	JP	Z,PKD_BEEP		; BEEP DSKY SPEAKER
 	DEC	A
 	JP	Z,PKD_DEVICE		; DEVICE INFO
+	DEC	A
+	JP	Z,PKD_MESSAGE		; HANDLE MESSAGE
+	DEC	A
+	JP	Z,PKD_EVENT		; HANDLE EVENT
 	SYSCHKERR(ERR_NOFUNC)
 	RET
 ;
@@ -198,9 +248,6 @@ PKD_RESET2:
 ;  CHECK FOR KEY PRESS, SAVE RAW VALUE, RETURN STATUS
 ;
 PKD_STAT:
-	LD	A,(PKD_PRESENT)		; DOES IT EXIST?
-	OR	A			; SET FLAGS
-	RET	Z			; ABORT WITH A=0 IF NOT THERE
 	CALL	PKD_ST
 	AND	$0F			; ISOLATE THE CUR FIFO LEN
 	RET
@@ -208,9 +255,6 @@ PKD_STAT:
 ;  WAIT FOR A DSKY KEYPRESS AND RETURN
 ;
 PKD_GETKEY:
-	LD	A,(PKD_PRESENT)		; DOES IT EXIST?
-	OR	A			; SET FLAGS
-	JR	Z,PKD_GETKEY1A		; ABORT IF NOT PRESENT
 	CALL	PKD_STAT
 	JR	Z,PKD_GETKEY		; LOOP IF NOTHING THERE
 	LD	A,PKD_CMD_FIFO
@@ -229,7 +273,6 @@ PKD_GETKEY1:
 	INC	C			; BUMP INDEX
 	DJNZ	PKD_GETKEY1		; LOOP UNTIL EOT
 	POP	AF			; FIX STACK
-PKD_GETKEY1A:
 	LD	A,$FF			; NOT FOUND ERR, RETURN $FF
 	RET
 PKD_GETKEY2:
@@ -245,19 +288,47 @@ PKD_GETKEY2:
 ; DISPLAY HEX VALUE FROM DE:HL
 ;
 PKD_SHOWHEX:
-	LD	BC,DSKY_HEXBUF		; POINT TO HEX BUFFER
+	LD	BC,PKD_TMP32		; POINT TO HEX BUFFER
 	CALL	ST32			; STORE 32-BIT BINARY THERE
-	LD	HL,DSKY_HEXBUF		; FROM: BINARY VALUE (HL)
-	LD	DE,DSKY_BUF		; TO: SEGMENT BUFFER (DE)
-	CALL	DSKY_BIN2SEG		; CONVERT
-	LD	HL,DSKY_BUF		; POINT TO SEGMENT BUFFER
-	; AND FALL THRU TO DISPLAY IT
-;
+	LD	HL,PKD_TMP32		; FROM: BINARY VALUE (HL)
+	LD	DE,PKD_BUF		; TO: SEGMENT BUFFER (DE)
+	CALL	PKD_BIN2SEG		; CONVERT
+	LD	HL,PKD_BUF		; POINT TO SEGMENT BUFFER
+	LD	B,PKD_COLS		; LENGTH TO DISPLAY
+	LD	C,0			; STARTING POSITION
+	CALL	PKD_PUTSTR		; DO IT
+	XOR	A			; SUCCESS
+	RET				; AND RETURN
 ;
+; DRAW DISPLAY USING DEBUG ALPHABET
+; HL = SOURCE BUFFER
 ;
 PKD_SHOWSEG:
+	; CONVERT FROM DBG ALPHABET TO SEG CODES
+	LD	B,PKD_COLS		; DO FOR ALL CHARS
+	LD	DE,PKD_BUF		; DESTINATION BUFFER
+PKD_SHOWSEG1:
+	LD	A,(HL)			; GET SOURCE VALUE
+	INC	HL			; BUMP FOR NEXT TIME
+	PUSH	AF			; SAVE IT
+	AND	$80			; ISOLATE HI BIT (DP)
+	LD	C,A			; SAVE IN C
+	POP	AF			; RECOVER ORIGINAL
+	AND	$7F			; REMOVE HI BIT (DP)
+	PUSH	HL			; SAVE IT
+	LD	HL,PKD_SEGMAP		; POINT TO XLAT MAP
+	CALL	ADDHLA			; OFFSET BY VALUE
+	LD	A,(HL)			; GET NEW VALUE
+	OR	C			; RECOMBINE WITH DP BIT
+	LD	(DE),A			; SAVE IT
+	INC	DE			; BUMP PTR
+	POP	HL			; RESTORE SOURCE PTR
+	DJNZ	PKD_SHOWSEG1		; LOOP TILL DONE
+;	
+	; DISPLAY CONVERTED BUFFER
 	LD	C,0			; STARTING DISPLAY POSITION
-	LD	B,DSKY_BUFLEN		; NUMBER OF CHARS
+	LD	B,PKD_COLS		; NUMBER OF CHARS
+	LD	HL,PKD_BUF		; BUFFER
 	CALL	PKD_PUTSTR		; DO IT
 	XOR	A			; SIGNAL SUCCESS
 	RET
@@ -309,7 +380,7 @@ PKD_BEEP:
 ;
 	; TIMER
 	PUSH	HL
-	LD 	hl,$8FFF
+	LD 	HL,$8FFF
 PKD_BEEP1:
 	DEC 	HL
 	LD 	A,H
@@ -335,10 +406,80 @@ PKD_DEVICE:
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
-;__PKD_PPIDETECT_____________________________________________________________________________________
+; MESSAGE HANDLER
+;
+PKD_MESSAGE:
+	LD	A,C			; GET MESSAGE ID
+	ADD	A,A			; WORD OFFSET
+	LD	HL,PKD_MSGTBL		; START OF MESSAGE TABLE
+	CALL	ADDHLA			; ADD OFFSET
+	LD	A,(HL)			; SAVE LSB
+	INC	HL			; BUMP TO MSB
+	LD	H,(HL)			; GET MSB
+	LD	L,A			; GET LSB
+;
+	; HL HAS POINTER TO MESSAGE
+	LD	C,0			; STARTING DISPLAY POSITION
+	LD	B,PKD_COLS		; NUMBER OF CHARS
+	CALL	PKD_PUTSTR		; DISPLAY IT
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; EVENT HANDLER
+;
+PKD_EVENT:
+	LD	A,C			; EVENT ID
+	OR	A			; 0=CPUSPD
+	JR	Z,PKD_EVT_CPUSPD	; HANDLE CPU SPD CHANGE
+	DEC	A			; 1=DSKACT
+	JR	Z,PKD_EVT_DSKACT	; HANDLE DISK ACTIVITY
+	XOR	A
+	RET
+;
+; CPU SPEED CHANGE
+;
+PKD_EVT_CPUSPD:
+	XOR	A
+	RET
+;
+; DISK ACTIVITY
+;
+PKD_EVT_DSKACT:
+;
+	; USE DISK UNIT NUMBER FOR MSB
+	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
+	LD	(HB_DSKADR+3),A		; REPLACE HIGH BYTE W/ DISK #
+;
+	; CONVERT TO SEGMENT DISPLAY
+	LD	HL,HB_DSKADR		; INPUT POINTER
+	LD	DE,PKD_BUF		; BUF FOR OUTPUT
+	CALL	PKD_BIN2SEG		; CONVERT TO SEG DISPLAY
+;
+	; DECIMAL POINT FOR DISK UNIT SEPARATION
+	LD	HL,PKD_BUF+1		; SECOND CHAR OF DISP
+	SET	7,(HL)			; TURN ON DECIMAL PT
+;
+	; DECIMAL POINT TO INDICATE WRITE ACTION
+	LD	A,(HB_DSKFUNC)		; GET CURRENT I/O FUNCTION
+	CP	BF_DIOWRITE		; IS IT A WRITE?
+	JR	NZ,PKD_EVT_DSKACT2	; IF NOT, SKIP
+	LD	HL,PKD_BUF+7		; POINT TO CHAR 7
+	SET	7,(HL)			; SET WRITE DOT
+;
+PKD_EVT_DSKACT2:
+	; UPDATE DISPLAY
+	LD	HL,PKD_BUF		; SEG DISPLAY BUF TO HL
+	LD	B,PKD_COLS
+	LD	C,0
+	CALL	PKD_PUTSTR
+;
+	XOR	A
+	RET
+;
+;__PKD_PPIDETECT___________________________________________________________________________________
 ;
 ;  PROBE FOR PPI HARDWARE
-;____________________________________________________________________________________________________
+;__________________________________________________________________________________________________
 ;
 PKD_PPIDETECT:
 ;
@@ -357,7 +498,7 @@ PKD_PPIDETECT:
 	OR	A			; SET FLAGS
 	RET				; AND RETURN
 ;
-;_KEYMAP_TABLE_____________________________________________________________________________________________________________
+;__KEYMAP_TABLE____________________________________________________________________________________
 ;
 PKD_KEYMAP:
 	; POS	$00  $01  $02  $03  $04  $05  $06  $07
@@ -667,10 +808,74 @@ PKD_PPIIDLE:
 ; UTILTITY FUNCTIONS
 ;==================================================================================================
 ;
+; CONVERT 32 BIT BINARY TO 8 BYTE HEX SEGMENT DISPLAY
+;
+;	HL: ADR OF 32 BIT BINARY
+;	DE: ADR OF DEST LED SEGMENT DISPLAY BUFFER (8 BYTES)
+;
+PKD_BIN2SEG:
+	LD	B,4			; 4 BYTES OF INPUT
+	LD	A,B			; PUT IN ACCUM
+	CALL	ADDHLA			; PROCESS FROM END (LITTLE ENDIAN)
+PKD_BIN2SEG1:
+	DEC	HL			; DEC PTR (LITTLE ENDIAN)
+	LD	A,(HL)			; HIGH NIBBLE
+	RRCA \ RRCA \ RRCA \ RRCA	; ROTATE BITS
+	CALL	PKD_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
+	LD	A,(HL)			; LOW NIBBLE
+	CALL	PKD_BIN2SEG_NIB	; CONVERT NIBBLE INTO OUTPUT BUF
+	DJNZ	PKD_BIN2SEG1		; LOOP FOR ALL INPUT BYTES
+	RET				; DONE
+;
+PKD_BIN2SEG_NIB:
+	PUSH	HL			; SAVE HL
+	LD	HL,PKD_SEGMAP		; POINT TO SEG MAP TABLE
+	AND	$0F			; ISOLATE LOW NIBBLE
+	CALL	ADDHLA			; OFFSET INTO TABLE
+	LD	A,(HL)			; LOAD VALUE FROM TABLE
+	POP	HL			; RESTORE HL
+	LD	(DE),A			; SAVE VALUE TO OUTPUT BUF
+	INC	DE			; BUMP TO NEXT OUTPUT BYTE
+	RET				; DONE
 ;
 ;==================================================================================================
 ; STORAGE
 ;==================================================================================================
 ;
-PKD_PPIX_VAL	.DB	0	; PPIX SHADOW REG
-PKD_PRESENT	.DB	0	; HARDWARE PRESENT FLAG
+PKD_PPIX_VAL	.DB	0		; PPIX SHADOW REG
+PKD_PRESENT	.DB	0		; HARDWARE PRESENT FLAG
+PKD_BUF		.FILL	PKD_COLS
+PKD_TMP32	.FILL	4,0		; TEMP DWORD
+;
+PKD_VERSTR	.DB	$76,$7F,$30,$3F,$6D,$00,$00,$00	; "HBIOS   "
+;
+PKD_SEGMAP:
+;
+	; POS	$00  $01  $02  $03  $04  $05  $06  $07
+	; GLYPH '0'  '1'  '2'  '3'  '4'  '5'  '6'  '7'
+
+	.DB	$3F, $06, $5B, $4F, $66, $6D, $7D, $07
+;
+	; POS	$08  $09  $0A  $0B  $0C  $0D  $0E  $0F
+	; GLYPH	'8'  '9'  'A'  'B'  'C'  'D'  'E'  'F'
+	.DB	$7F, $67, $77, $7C, $39, $5E, $79, $71
+;
+	; POS	$10  $11  $12  $13  $14  $15  $16  $17  $18  $19  $1A
+	; GLYPH	' '  '-'  '.'  'P'  'o'  'r'  't'  'A'  'd'  'r'  'G'
+	.DB	$00, $40, $00, $73, $5C, $50, $78, $77, $5E, $50, $3D
+
+;
+PKD_MSGTBL:
+	.DW	PKD_MSG_LDR_SEL
+	.DW	PKD_MSG_LDR_BOOT
+	.DW	PKD_MSG_LDR_LOAD
+	.DW	PKD_MSG_LDR_GO
+	.DW	PKD_MSG_MON_RDY
+	.DW	PKD_MSG_MON_BOOT
+;
+PKD_MSG_LDR_SEL		.DB	$7F,$5C,$5C,$78,$53,$00,$00,$00	; "Boot?   "
+PKD_MSG_LDR_BOOT	.DB	$7F,$5C,$5C,$78,$80,$80,$80,$00	; "Boot... "
+PKD_MSG_LDR_LOAD	.DB	$38,$5C,$5F,$5E,$80,$80,$80,$00	; "Load... "
+PKD_MSG_LDR_GO		.DB	$3D,$5C,$80,$80,$80,$00,$00,$00	; "Go...   "
+PKD_MSG_MON_RDY		.DB	$40,$39,$73,$3E,$00,$3E,$73,$40	; "-CPU UP-"
+PKD_MSG_MON_BOOT	.DB	$7F,$5C,$5C,$78,$82,$00,$00,$00	; "Boot!   "
diff --git a/Source/HBIOS/ppa.asm b/Source/HBIOS/ppa.asm
index 0b6da099..ec8505f6 100644
--- a/Source/HBIOS/ppa.asm
+++ b/Source/HBIOS/ppa.asm
@@ -243,6 +243,7 @@ PPA_DETECT:
 	ADD	A,PPA_IOSETUP		; BUMP TO SETUP PORT
 	LD	C,A			; MOVE TO C FOR I/O
 	LD	A,$82			; CONFIG A OUT, B IN, C OUT
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	CALL	DELAY			; BRIEF DELAY FOR GOOD MEASURE
 #ENDIF
@@ -339,13 +340,13 @@ PPA_IO:
 ;
 	LD	(PPA_DSKBUF),HL		; SAVE DISK BUFFER ADDRESS
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,PPA_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; SETUP LBA
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
@@ -476,6 +477,7 @@ PPA_GEOM:
 ;
 PPA_WRITEDATA:
 	LD	C,(IY+PPA_IOBASE)	; DATA PORT IS AT IOBASE
+	EZ80_IO
 	OUT	(C),A			; WRITE THE BYTE
 	;CALL	DELAY			; IS THIS NEEDED???
 	RET				; DONE
@@ -493,6 +495,7 @@ PPA_WRITECTRL:
 	LD	C,(IY+PPA_IOBASE)	; GET BASE IO ADDRESS
 	INC	C			; BUMP TO CONTROL PORT
 	INC	C
+	EZ80_IO
 	OUT	(C),A			; WRITE TO CONTROL PORT
 	;CALL	DELAY			; IS THIS NEEDED?
 	RET				; DONE
@@ -511,6 +514,7 @@ PPA_WRITECTRL:
 PPA_READSTATUS:
 	LD	C,(IY+PPA_IOBASE)	; IOBASE TO C
 	INC	C			; BUMP TO STATUS PORT
+	EZ80_IO
 	IN	A,(C)			; READ IT
 ;
 #IF (PPAMODE == PPAMODE_MG014
@@ -855,9 +859,11 @@ PPA_GETBLOCK:
 ;
 PPA_GETBLOCK1:
 	EXX				; ALT REGS
+	EZ80_IO
 	OUT	(C),D			; SEND FIRST CLOCK
-PPA_GETBLOCK_A	.EQU	$+1
+	EZ80_IO
 	IN	A,($FF)			; GET HIGH NIBBLE
+PPA_GETBLOCK_A	.EQU	$-1
 #IF (PPAMODE == PPAMODE_MG014)
 	AND	$0F			; RELEVANT BITS ONLY
 	ADD	A,MG014_STATMAPHI & $FF	; HIGH BYTE OF MAP PTR
@@ -869,9 +875,11 @@ PPA_GETBLOCK_A	.EQU	$+1
 	AND	$F0			; RELEVANT BITS ONLY
 	LD	L,A			; SAVE NIBBLE IN L
 #ENDIF
+	EZ80_IO
 	OUT	(C),E			; SEND SECOND CLOCK
-PPA_GETBLOCK_B	.EQU	$+1
+	EZ80_IO
 	IN	A,($FF)			; GET LOW NIBBLE
+PPA_GETBLOCK_B	.EQU	$-1
 #IF (PPAMODE == PPAMODE_MG014)
 	AND	$0F			; RELEVANT BITS ONLY
 	ADD	A,MG014_STATMAPLO & $FF	; LOW BYTE OF MAP PTR
@@ -964,9 +972,12 @@ PPA_PUTBLOCK:
 PPA_PUTBLOCK1:
 	LD	A,(DE)			; GET NEXT BYTE
 PPA_PUTBLOCK_A	.EQU	$+1
+	EZ80_IO
 	OUT	($FF),A			; PUT ON BUS
 	INC	DE			; INCREMENT BUF POS
+	EZ80_IO
 	OUT	(C),H			; FIRST CLOCK
+	EZ80_IO
 	OUT	(C),L			; SECOND CLOCK
 	DJNZ	PPA_PUTBLOCK1		; LOOP
 	RET				; DONE
@@ -1147,6 +1158,7 @@ PPA_INITDEV:
 	ADD	A,PPA_IOSETUP		; BUMP TO SETUP PORT
 	LD	C,A			; MOVE TO C FOR I/O
 	LD	A,$82			; CONFIG A OUT, B IN, C OUT
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	CALL	DELAY			; SHORT DELAY FOR BUS SETTLE
 #ENDIF
diff --git a/Source/HBIOS/ppide.asm b/Source/HBIOS/ppide.asm
index de956828..d44d4f58 100644
--- a/Source/HBIOS/ppide.asm
+++ b/Source/HBIOS/ppide.asm
@@ -351,7 +351,8 @@ PPIDE_DEV2S:	; DEVICE 2, SLAVE
 ; BASED ON REAL WORLD EXPERIENCE.
 ;
 PPIDE_TOSLOW	.EQU	200		; SLOW TIMEOUT IS 20 SECS
-PPIDE_TONORM	.EQU	5		; NORMAL TIMEOUT IS 0.5 SECS
+;PPIDE_TONORM	.EQU	5		; NORMAL TIMEOUT IS 0.5 SECS
+PPIDE_TONORM	.EQU	200		; NORMAL TIMEOUT IS 0.5 SECS
 ;
 ;=============================================================================
 ; INITIALIZATION ENTRY POINT
@@ -487,11 +488,14 @@ PPIDE_DETECT:
 ;
 	LD	A,PPIDE_DIR_WRITE	; SET DATA BUS DIRECTION TO WRITE
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 ;
 	LD	C,(IY+PPIDE_DATALO)	; PPI PORT A, DATALO
 	LD	A,$A5			; TEST VALUE
+	EZ80_IO
 	OUT	(C),A			; PUSH VALUE TO PORT
+	EZ80_IO
 	IN	A,(C)			; GET PORT VALUE
 #IF (PPIDETRACE >= 3)
 	CALL	PC_SPACE
@@ -829,13 +833,13 @@ PPIDE_PKT_RDSEC:
 #ENDIF
 	; SETUP LBA
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,PPIDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
 	LD	HL,PPIDE_PKTCMD_RW10+3	; START OF LBA FIELD IN CDB (MSB)
@@ -898,13 +902,13 @@ PPIDE_PKT_WRSEC:
 #ENDIF
 	; SETUP LBA
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,PPIDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	; 3 BYTES, LITTLE ENDIAN -> BIG ENDIAN
 	LD	HL,PPIDE_PKTCMD_RW10+3	; START OF LBA FIELD IN CDB (MSB)
@@ -930,13 +934,13 @@ PPIDE_PKT_WRSEC:
 ;
 PPIDE_SETADDR:
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,PPIDE_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	; SEND 3 LOWEST BYTES OF LBA IN REVERSE ORDER
 	; IDE_REG_LBA3 HAS ALREADY BEEN SET
 	; HSTLBA2-0 --> IDE_REG_LBA2-0
@@ -1131,12 +1135,14 @@ PPIDE_GET:
 	LD	A,PPIDE_DIR_READ	; SET DATA BUS DIRECTION TO READ
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 ;
 	; SELECT READ/WRITE IDE REGISTER
 	LD	A,PPIDE_REG_DATA	; DATA REGISTER
 	;OUT	(PPIDE_REG_CTL),A	; DO IT
 	LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	LD	E,A			; E := READ UNASSERTED
 	XOR	PPIDE_CTL_DIOR		; SWAP THE READ LINE BIT
@@ -1159,19 +1165,25 @@ PPIDE_GET2:
 ;
 PPIDE_GET8:	; 8 BIT WIDE READ LOOP
 	; ENTER W/ C = PPIDE_REG_CTL
+	EZ80_IO
 	OUT	(C),D			; ASSERT READ
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	INI				; READ FROM LSB
 	INC	C			; LSB -> MSB
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),E			; DEASSERT READ
+	EZ80_IO
 	OUT	(C),D			; ASSERT READ
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	INI				; READ FROM LSB
 	INC	C			; LSB -> MSB
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),E			; DEASSERT READ
 	DEC	A
 	JR	NZ,PPIDE_GET8		; LOOP UNTIL DONE
@@ -1179,13 +1191,17 @@ PPIDE_GET8:	; 8 BIT WIDE READ LOOP
 ;
 PPIDE_GET16:	; 16 BIT WIDE READ LOOP
 	; ENTER W/ C = PPIDE_REG_CTL
+	EZ80_IO
 	OUT	(C),D			; ASSERT READ
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	INI				; READ FROM LSB
 	INC	C			; LSB -> MSB
+	EZ80_IO
 	INI				; READ MSB FOR 16 BIT
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),E			; DEASSERT READ
 	DEC	A
 	JR	NZ,PPIDE_GET16		; LOOP UNTIL DONE
@@ -1217,12 +1233,14 @@ PPIDE_PUT:
 	LD	A,PPIDE_DIR_WRITE	; SET DATA BUS DIRECTION TO WRITE
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 ;
 	; SELECT READ/WRITE IDE REGISTER
 	LD	A,PPIDE_REG_DATA	; DATA REGISTER
 	;OUT	(PPIDE_REG_CTL),A	; DO IT
 	LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
+	EZ80_IO
 	OUT	(C),A			; DO IT
 	LD	E,A			; E := WRITE UNASSERTED
 	XOR	PPIDE_CTL_DIOW		; SWAP THE READ LINE BIT
@@ -1247,17 +1265,23 @@ PPIDE_PUT2:
 PPIDE_PUT8:	; 8 BIT WIDE WRITE LOOP
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	OUTI				; WRITE NEXT BYTE (LSB)
 	INC	C			; LSB -> MSB
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),D			; ASSERT WRITE
+	EZ80_IO
 	OUT	(C),E			; DEASSERT WRITE
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	OUTI				; WRITE NEXT BYTE (LSB)
 	INC	C			; LSB -> MSB
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),D			; ASSERT WRITE
+	EZ80_IO
 	OUT	(C),E			; DEASSERT WRITE
 	DEC	A
 	JR	NZ,PPIDE_PUT8		; LOOP UNTIL DONE
@@ -1266,11 +1290,15 @@ PPIDE_PUT8:	; 8 BIT WIDE WRITE LOOP
 PPIDE_PUT16:	; 16 BIT WIDE WRITE LOOP
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	OUTI				; WRITE NEXT BYTE (LSB)
 	INC	C			; LSB -> MSB
+	EZ80_IO
 	OUTI				; WRITE NEXT BYTE (MSB)
 	INC	C			; MSB -> CTL
+	EZ80_IO
 	OUT	(C),D			; ASSERT WRITE
+	EZ80_IO
 	OUT	(C),E			; DEASSERT WRITE
 	DEC	A
 	JR	NZ,PPIDE_PUT16		; LOOP UNTIL DONE
@@ -1320,6 +1348,7 @@ PPIDE_RESET:
 	LD	A,PPIDE_DIR_READ	; SET DATA BUS DIRECTION TO READ
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 ;
 ; IF A DSKYNG IS ACTIVE AND IS ON THE SAME PPI PORT AS THE PPIDE BEING
@@ -1328,18 +1357,19 @@ PPIDE_RESET:
 ; THERE IS NO CHECK FOR THE SPECIFIC PPI PORT SINCE IT DOES NO HARM
 ; IF THE DSKYNG IS SAVED AND RESTORED.
 ;
-; THIS DOES NOT TEST THAT A DSKYNG IS ACTUALLY PRESENT
-; AND OPERATING -- COULD CAUSE PROBLEMS
-;
-#IF (DSKYENABLE)
-  #IF (PKDENABLE)
+;;;#IF (DSKYENABLE)
+#IF (PKDENABLE)
 	; SAVE CONTENTS OF DSKYNG DISPLAY ACROSS RESET
-	LD	B,8
-	LD	C,0
-	LD	HL,DSKY_BUF
-	CALL	PKD_GETSTR
-  #ENDIF
+	LD	A,(PKD_PRESENT)		; GET PKD PRESENCE FLAG
+	OR	A			; TEST FOR ZERO
+	JR	Z,PPIDE_RESET_PKD1	; IF ZERO, NOT THERE, BYPASS
+	LD	B,8			; LENGTH
+	LD	C,0			; START
+	LD	HL,PKD_BUF		; BUFFER
+	CALL	PKD_GETSTR		; GET CURRENT DISPLAY TO BUF
+PPIDE_RESET_PKD1:
 #ENDIF
+;;;#ENDIF
 ;
 	; PULSE IDE RESET LINE
 #IF (PPIDETRACE >= 3)
@@ -1348,25 +1378,31 @@ PPIDE_RESET:
 	LD	A,PPIDE_CTL_RESET
 	;OUT	(PPIDE_REG_CTL),A
 	LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
+	EZ80_IO
 	OUT	(C),A
 	LD	DE,20			; DELAY 320US (SPEC IS >= 25US)
 	CALL	VDELAY
 	XOR	A
 	;OUT	(PPIDE_REG_CTL),A
+	EZ80_IO
 	OUT	(C),A
 	LD	DE,20
 	CALL	VDELAY
 ;
-#IF (DSKYENABLE)
-  #IF (PKDENABLE)
+;;;#IF (DSKYENABLE)
+#IF (PKDENABLE)
 	; REININT DSKYNG AND RESTORE CONTENTS
-	CALL	PKD_REINIT
-	LD	B,8
-	LD	C,0
-	LD	HL,DSKY_BUF
-	CALL	PKD_PUTSTR
-  #ENDIF
-#ENDIF
+	LD	A,(PKD_PRESENT)		; GET PKD PRESENCE FLAG
+	OR	A			; TEST FOR ZERO
+	JR	Z,PPIDE_RESET_PKD2	; IF ZERO, NOT THERE, BYPASS
+	CALL	PKD_REINIT		; REINIT PKD
+	LD	B,8			; LENGTH
+	LD	C,0			; START
+	LD	HL,PKD_BUF		; BUFFER
+	CALL	PKD_PUTSTR		; RESTORE DISPLAY CONTENTS
+PPIDE_RESET_PKD2:
+#ENDIF
+;;;#ENDIF
 ;
 ; SOME CF CARDS AND CF CARD EMULATORS NEED A LITTLE TIME TO
 ; "BOOT" THEIR INTERNAL ELECTRONICS, SO THEY CANNOT ASSERT BUSY
@@ -1506,6 +1542,13 @@ PPIDE_PROBE:
 ; WAIT FOR THE DEVICE TO BE READY.  THIS WAIT IS MANDATORY BECAUSE
 ; SOME (IF NOT ALL) DEVICES WILL NOT PERSIST REGISTER VALUES UNTIL
 ; THE DRIVE IS READY.
+;
+	; FIRST, WRITE A $7F VALUE TO THE PPIDE STATUS REGISTER.  IF
+	; AN IDE DEVICE EXISTS, THIS WILL DO NO HARM.  IF NOT, THIS
+	; WILL HELP AVOID A FALSE POSITIVE (STALL).
+	LD	A,$7F
+	CALL	PPIDE_OUT
+	.DB	PPIDE_REG_DATA
 ;
 	CALL	PPIDE_IN
 	.DB	PPIDE_REG_STAT
@@ -1889,24 +1932,29 @@ PPIDE_IN:
 	LD	A,PPIDE_DIR_READ	; SET DATA BUS DIRECTION TO READ	; 7TS
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD			; 19TS
+	EZ80_IO
 	OUT	(C),A			; WRITE IT				; 12TS
 ;
 	LD	B,(HL)			; GET CTL PORT VALUE			; 7TS
 	;LD	C,PPIDE_REG_CTL		; SETUP PORT TO WRITE
 	;LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
 	DEC	C			; SET IDE ADDRESS			; 4TS
+	EZ80_IO
 	OUT	(C),B			; SET ADDRESS LINES			; 12TS
 	SET	6,B			; TURN ON READ BIT			; 8TS
+	EZ80_IO
 	OUT	(C),B			; ASSERT READ LINE			; 12TS
 ;
 	;IN	A,(PPIDE_REG_DATALO)	; GET DATA VALUE FROM DEVICE
 	DEC	C								; 4TS
 	DEC	C								; 4TS
+	EZ80_IO
 	IN	A,(C)			; GET DATA VALUE FROM DEVICE		; 12
 	INC	C								; 4TS
 	INC	C								; 4TS
 ;
 	RES	6,B			; CLEAR READ BIT			; 8TS
+	EZ80_IO
 	OUT	(C),B			; DEASSERT READ LINE			; 12TS
 	POP	BC			; RECOVER INCOMING BC			; 10TS
 	INC	HL			; POINT PAST PARM			; 6TS
@@ -1923,6 +1971,7 @@ PPIDE_OUT:
 	LD	A,PPIDE_DIR_WRITE	; SET DATA BUS DIRECTION TO WRITE
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 	POP	AF			; RECOVER VALUE TO WRITE
 ;
@@ -1930,18 +1979,22 @@ PPIDE_OUT:
 	;LD	C,PPIDE_REG_CTL		; SETUP PORT TO WRITE
 	;LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
 	DEC	C			; SET IDE ADDRESS
+	EZ80_IO
 	OUT	(C),B			; SET ADDRESS LINES
 	SET	5,B			; TURN ON WRITE BIT
+	EZ80_IO
 	OUT	(C),B			; ASSERT WRITE LINE
 ;
 	DEC	C
 	DEC	C
 	;OUT	(PPIDE_REG_DATALO),A	; SEND DATA VALUE TO DEVICE
+	EZ80_IO
 	OUT	(C),A			; SEND DATA VALUE TO DEVICE
 	INC	C
 	INC	C
 ;
 	RES	5,B			; CLEAR WRITE BIT
+	EZ80_IO
 	OUT	(C),B			; DEASSERT WRITE LINE
 	POP	BC			; RECOVER INCOMING BC
 	INC	HL			; POINT PAST PARM
@@ -2084,6 +2137,7 @@ PPIDE_REGDUMP:
 	LD	A,PPIDE_DIR_READ	; SET DATA BUS DIRECTION TO READ
 	;OUT	(PPIDE_REG_PPI),A	; DO IT
 	LD	C,(IY+PPIDE_PPI)	; PPI CONTROL WORD
+	EZ80_IO
 	OUT	(C),A			; WRITE IT
 	LD	C,(IY+PPIDE_CTL)	; SET IDE ADDRESS
 	LD	E,PPIDE_REG_CMD
@@ -2091,19 +2145,23 @@ PPIDE_REGDUMP:
 PPIDE_REGDUMP1:
 	LD	A,E			; REGISTER ADDRESS
 	;OUT	(PPIDE_REG_CTL),A	; SET IT
+	EZ80_IO
 	OUT	(C),A			; REGISTER ADDRESS
 	XOR	PPIDE_CTL_DIOR		; SET BIT TO ASSERT READ LINE
 	;OUT	(PPIDE_REG_CTL),A	; ASSERT READ
+	EZ80_IO
 	OUT	(C),A			; ASSERT READ
 	;IN	A,(PPIDE_REG_DATALO)	; GET VALUE
 	DEC	C			; CTL -> MSB
 	DEC	C			; MSB -> LSB
+	EZ80_IO
 	IN	A,(C)			; GET VALUE
 	INC	C			; LSB -> MSB
 	INC	C			; MSB -> CTL
 	CALL	PRTHEXBYTE		; DISPLAY IT
 	;LD	A,C			; RELOAD ADDRESS W/ READ UNASSERTED
 	;OUT	(PPIDE_REG_CTL),A	; AND SET IT
+	EZ80_IO
 	OUT	(C),E			; RELOAD ADDRESS W/ READ UNASSERTED
 	;DEC	C			; NEXT LOWER REGISTER
 	DEC	E			; NEXT LOWER REGISTER
diff --git a/Source/HBIOS/ppp.asm b/Source/HBIOS/ppp.asm
index 9b1c1301..a4afb9e5 100644
--- a/Source/HBIOS/ppp.asm
+++ b/Source/HBIOS/ppp.asm
@@ -276,7 +276,8 @@ PPPCON_INIT:
 	LD	E,CIODEV_PPPCON		; DEVICE TYPE
 	LD	BC,PPPCON_FNTBL		; BC := FUNCTION TABLE ADDRESS
 	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
-	LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	;;;LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	CALL	CIO_SETCRT		; SET OURSELVES AS THE CRT DEVICE
 ;
 	XOR	A
 	RET
@@ -948,11 +949,11 @@ PPPSD_SENDBLK:
 
 	LD	A,PPPSD_LBA		; OFFSET OF LBA
 	CALL	LDHLIYA			; HL := IY + A, REG A TRASHED
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	LD	B,4
 PPPSD_SENDBLK1:
 	LD	A,(HL)
diff --git a/Source/HBIOS/prp.asm b/Source/HBIOS/prp.asm
index 6cc98ff2..f00557ed 100644
--- a/Source/HBIOS/prp.asm
+++ b/Source/HBIOS/prp.asm
@@ -150,7 +150,8 @@ PRPCON_INIT:
 	LD	E,CIODEV_PRPCON		; DEVICE TYPE
 	LD	BC,PRPCON_FNTBL		; BC := FUNCTION TABLE ADDRESS
 	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
-	LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	;;;LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	CALL	CIO_SETCRT		; SET OURSELVES AS THE CRT DEVICE
 ;
 	XOR	A			; SIGNAL SUCCESS
 	RET
@@ -882,11 +883,11 @@ PRPSD_SETBLK:
 	LD	B,4			; 4 BYTES
 	LD	A,PRPSD_LBA		; OFFSET OF LBA
 	CALL	LDHLIYA			; HL := IY + A, REG A TRASHED
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	OTIR
 	RET
 ;
diff --git a/Source/HBIOS/rf.asm b/Source/HBIOS/rf.asm
index cd804074..6d80fc81 100644
--- a/Source/HBIOS/rf.asm
+++ b/Source/HBIOS/rf.asm
@@ -333,13 +333,13 @@ RF_SETIO:
 ;
 RF_SETADR:
 ;
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	LD	A,RF_LBA
 	CALL	LDHLIYA
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 ;
 	LD	A,(RF_IO)		; OUTPUT THE LOGICAL BLOCK
 	OR	RF_AL			; ADDRESS TO THE
diff --git a/Source/HBIOS/romldr.asm b/Source/HBIOS/romldr.asm
index 4d4395d8..8d256b70 100644
--- a/Source/HBIOS/romldr.asm
+++ b/Source/HBIOS/romldr.asm
@@ -31,7 +31,7 @@
 ; avoid the problem where the code is overlaid during the loading of
 ; the desired executable image.
 ;
-#INCLUDE "std.asm"	; standard RomWBW constants
+#include "std.asm"	; standard RomWBW constants
 ;
 #ifndef BOOT_DEFAULT
 #define BOOT_DEFAULT "H"
@@ -47,7 +47,6 @@ cmdbuf	.equ	$80	; cmd buf is in second half of page zero
 cmdmax	.equ	60	; max cmd len (arbitrary), must be < bufsiz
 bufsiz	.equ	$80	; size of cmd buf
 ;
-;;int_im1	.equ	$FF00	; IM1 vector target for RomWBW HBIOS proxy
 hbx_int		.equ	$FF60	; IM1 vector target for RomWBW HBIOS proxy
 ;
 bid_cur	.equ	-1	; used below to indicate current bank
@@ -132,16 +131,22 @@ start:
 	di
 #endif
 ;
-; Switch to user RAM bank
+; Switch to user RAM bank and establish boot mode
 ;
 #if (BIOS == BIOS_WBW)
+	; Get the boot mode
+	ld	b,BF_SYSPEEK		; HBIOS func: PEEK
+	ld	d,BID_BIOS		; BIOS bank
+	ld	hl,HCB_LOC + HCB_BOOTMODE	; boot mode byte
+	rst	08
+	ld	a,e			; put in A
+	ld	(bootmode),a		; save it
+;
 	ld	b,BF_SYSSETBNK		; HBIOS func: set bank
 	ld	c,BID_USR		; select user bank
 	rst	08			; do it
 	ld	a,c			; previous bank to A
 	ld	(bid_ldr),a		; save previous bank for later
-	;;;bit	7,a			; starting from ROM?
-	cp	BID_IMG0		; ROM startup?
 #endif
 ;
 #if (BIOS == BIOS_UNA)
@@ -149,16 +154,22 @@ start:
 	ld	de,BID_USR		; select user bank
 	rst	08			; do it
 	ld	(bid_ldr),de		; save previous bank for later
+;
+	ld	a,BM_ROMBOOT		; assume ROM boot
 	bit	7,d			; starting from ROM?
+	jr	z,start1		; if so, skip ahead
+	ld	a,BM_APPBOOT		; else this is APP boot
+start1:
+	ld	(bootmode),a		; save it
 #endif
 ;
 	; For app mode startup, use alternate table
-	ld	hl,ra_tbl		; assume ROM startup
-	jr	z,start1		; if so, ra_tbl OK, skip ahead
-	ld	hl,ra_tbl_app		; not ROM boot, get app tbl loc
-	ld	a,$ff			; signal for app boot
-	ld	(appboot),a		; ... goes in flag
-start1:
+	ld	hl,ra_tbl		; assume ROM application table
+	ld	a,(bootmode)		; get boot mode
+	cp	BM_ROMBOOT		; ROM boot?
+	jr	z,start2		; if so, ra_tbl OK, skip ahead
+	ld	hl,ra_tbl_app		; switch to RAM application table
+start2:
 	ld	(ra_tbl_loc),hl		; and overlay pointer
 ;
 ; Copy original page zero into user page zero
@@ -178,9 +189,9 @@ start1:
 ;
 #if (BIOS == BIOS_WBW)
 	; Get the current console unit
-	ld	b,BF_SYSPEEK		; HBIOS func: POKE
+	ld	b,BF_SYSPEEK		; HBIOS func: PEEK
 	ld	d,BID_BIOS		; BIOS bank
-	ld	hl,HCB_LOC + HCB_CONDEV	; Con unit num in HCB
+	ld	hl,HCB_LOC + HCB_CONDEV	; console unit num in HCB
 	rst	08			; do it
 	ld	a,e			; put in A
 	ld	(curcon),a		; save it
@@ -208,10 +219,10 @@ start1:
 	call	nl2			; formatting
 	ld	hl,str_banner		; display boot banner
 	call	pstr			; do it
-	ld	a,(appboot)		; get app boot flag
-	or	a			; set flags
+	ld	a,(bootmode)		; get app boot flag
+	cp	BM_APPBOOT		; APP boot?
 	ld	hl,str_appboot		; signal application boot mode
-	call	nz,pstr			; print if app boot active
+	call	z,pstr			; print if APP boot
 	call	clrbuf			; zero fill the cmd buffer
 ;
 #if ((BIOS == BIOS_WBW) & FPSW_ENABLE)
@@ -260,13 +271,15 @@ prompt:
 	ld	hl,reprompt		; adr of prompt restart routine
 	push	hl			; put it on stack
 	call	nl2			; formatting
-	ld	hl,str_prompt		; display boot prompt
+	ld	hl,str_prompt		; display boot prompt "Boot [H=Help]:"
 	call	pstr			; do it
 	call	clrbuf			; zero fill the cmd buffer
 ;
+	;ld	hl,msg_sel		; boot select msg
+	;call	dsky_show		; show on DSKY
+	ld	c,DSKY_MSG_LDR_SEL	; boot select msg
+	call	dsky_msg                ; show on DSKY
 #if (DSKYENABLE)
-	ld	hl,msg_sel		; boot select msg
-	call	dsky_show		; show on DSKY
 	call	dsky_highlightallkeys
 	call 	dsky_beep
 	call 	dsky_l2on
@@ -292,6 +305,7 @@ wtkey:
 	; wait for a key or timeout
 	call	cst			; check for keyboard key
 	jr	nz,concmd		; if pending, do console command
+	; NOTE Above is like a CALL, with a RET to reprompt: (manually pushed)
 ;
 #if (DSKYENABLE)
 	call	dsky_stat		; check DSKY for keypress
@@ -301,7 +315,7 @@ wtkey:
 #if (BIOS == BIOS_WBW)
   #if (AUTOCON)
 	call	conpoll			; poll for console takeover
-	jp	nz,docon		; if requested, takeover	
+	jp	nz,docon		; if requested, takeover
   #endif
 #endif
 ;
@@ -740,54 +754,15 @@ setcon:
 	call	skipws			; skip whitespace
 	call	isnum			; do we have a number?
 	jp	nz,docon		; if no we don't change baudrate
-	call	getbnum			; return in HL:BC
-;
-	ld	e,32			; search baud rate table
-	push	de			; for a matching entry
-	ld	de,tbl_baud
-nextbaud:
-	ex	de,hl			; hl = tbl_baud, de = msw
-	ld	a,d			; check all four bytes
-	cp	(hl)			; against HL:BC
-	inc	hl			; exit to next table
-	jr	nz,mm1			; entry on mismatch
-	ld	a,e
-	cp	(hl)
-	inc	hl
-	jr	nz,mm2
-	ld	a,b
-	cp	(hl)
-	inc	hl
-	jr	nz,mm3
-	ld	a,c
-	cp	(hl)
-	inc	hl
-	jr	nz,mm4
-;
-	; we have a match
-	pop	de			; get our count value
-	ld	a,32
-	sub	e
-	jr	setspd
-;
-mm1:	inc	hl
-mm2:	inc	hl
-mm3:	inc	hl
-mm4:	ex	(sp),hl			; hl = count value, stack = tbl_baud, de = msw
-	dec	l
-	ex	(sp),hl			; hl = tbl_baud, stack= count
-	ex	de,hl			; hl = msw, de = tbl_baud
-	jr	nz,nextbaud
-;
-	; Failed to match
-	pop	de
-	jp	err_invcmd
-;
-setspd:	ld	(newspeed),a		; save validated baud rate
-;
-	ld	hl,str_chspeed		; notify user
-	call	pstr			; to change
-	call	cin			; speed
+	push	de			; move char ptr
+	pop	ix			; ... to IX
+	call	getnum32		; get 32-bit number
+	jp	c,err_invcmd		; handle overflow
+	ld	c,75			; Constant for baud rate encode
+	call	encode			; encode into C:4-0
+	jp	nz,err_invcmd		; handle encoding error
+	ld	a,c			; move encoded value to A
+	ld	(newspeed),a		; save validated baud rate
 ;
 	; Get the current settings for chosen console
 	ld	b,BF_CIOQUERY		; BIOS serial device query
@@ -801,12 +776,18 @@ setspd:	ld	(newspeed),a		; save validated baud rate
 	ld	hl,newspeed		; and load in new
 	or	(hl)			; baud rate
 	ld	d,a
+;
+	ld	hl,str_chspeed		; notify user
+	call	pstr			; to change speed
+	call	ldelay			; time for line to flush
 ;
 	ld	b,BF_CIOINIT		; BIOS serial init
 	ld	a,(newcon)		; get serial device unit
 	ld	c,a			; ... into C
 	rst	08			; call HBIOS
 	jp	nz,err_invcmd		; handle error
+;
+	call	cin			; wait for char at new speed
 ;
 	; Notify user, we're outta here....
 docon:	ld	hl,str_newcon		; new console msg
@@ -828,90 +809,6 @@ docon:	ld	hl,str_newcon		; new console msg
 	call	pstr			; do it
 	ret
 ;
-;=======================================================================
-; Get numeric chars at DE and convert to BCD number returned in HL:BC
-;=======================================================================
-;
-getbnum:ld	bc,0		; lsw
-	ld	hl,0		; msw
-getbnum1:
-	ld	a,(de)		; get the active char
-	cp	'0'		; compare to ascii '0'
-	jr	c,getbnum2	; abort if below
-	cp	'9' + 1		; compare to ascii '9'
-	jr	nc,getbnum2	; abort if above
-;
-	sub	'0'		; convert '0'-'9' to 0-9
-;
-	push	de		; save char posn
-	push	hl		; save hl bcd
-;
-	ld	hl,tmpbcd	; rotate 1 nyble in A
-	ld	(hl),c		; through HL:BC
-	rld
-	ld	c,(hl)
-	ld	(hl),b
-	rld
-	ld	b,(hl)
-	pop	de		; get hl bcd
-	ld	(hl),e
-	rld
-	ld	e,(hl)
-	ld	(hl),d
-	rld
-	ld	d,(hl)
-	ld	h,d
-	ld	l,e
-;
-	pop	de		; get char posn
-	inc	de		; bump to next char
-	jr	getbnum1	; loop
-;
-getbnum2:
-	or	a		; with flags set, CF is cleared
-	ret
-;
-tmpbcd:	.db	0		
-;
-#DEFINE PACK(a,b,c,d,e,f,g) \
-#DEFCONT \ 	.db	(16*('0'-'0'))+(a-'0'))
-#DEFCONT \ 	.db	(16*(b-'0'))+(c-'0'))
-#DEFCONT \ 	.db	(16*(d-'0'))+(e-'0'))
-#DEFCONT \ 	.db	(16*(f-'0'))+(g-'0'))	
-;
-tbl_baud:
-	PACK('0','0','0','0','0','7','5') ;      75  0 >  0
-	PACK('0','0','0','0','1','5','0') ;     150  1 >  1
-	PACK('0','0','0','0','3','0','0') ;     300  3 >  2
-	PACK('0','0','0','0','6','0','0') ;     600  5 >  3
-	PACK('0','0','0','1','2','0','0') ;    1200  7 >  4
-	PACK('0','0','0','2','4','0','0') ;    2400  9 >  5
-	PACK('0','0','0','4','8','0','0') ;    4800 11 >  6
-	PACK('0','0','0','9','6','0','0') ;    9600 13 >  7
-	PACK('0','0','1','9','2','0','0') ;   19200 15 >  8
-	PACK('0','0','3','8','4','0','0') ;   38400 17 >  9
-	PACK('0','0','7','6','8','0','0') ;   76800 19 > 10
-	PACK('0','1','5','3','6','0','0') ;  153600 21 > 11
-	PACK('0','3','0','7','2','0','0') ;  307200 23 > 12
-	PACK('0','6','1','4','4','0','0') ;  614400 25 > 13
-	PACK('1','2','2','8','8','0','0') ; 1228800 27 > 14
-	PACK('2','4','5','7','6','0','0') ; 2457600 29 > 15
-	PACK('0','0','0','0','2','2','5') ;     225  2 > 16
-	PACK('0','0','0','0','4','5','0') ;     450  4 > 17
-	PACK('0','0','0','0','9','0','0') ;     900  6 > 18
-	PACK('0','0','0','1','8','0','0') ;    1800  8 > 19
-	PACK('0','0','0','3','6','0','0') ;    3600 10 > 20
-	PACK('0','0','0','7','2','0','0') ;    7200 12 > 21
-	PACK('0','0','1','4','4','0','0') ;   14400 14 > 22
-	PACK('0','0','2','8','8','0','0') ;   28800 16 > 23
-	PACK('0','0','5','7','6','0','0') ;   57600 18 > 24
-	PACK('0','1','1','5','2','0','0') ;  115200 20 > 25
-	PACK('0','2','3','0','4','0','0') ;  230400 22 > 26
-	PACK('0','4','6','0','8','0','0') ;  460800 24 > 27
-	PACK('0','9','2','1','6','0','0') ;  921600 26 > 28
-	PACK('1','8','4','3','2','0','0') ; 1843200 28 > 29
-	PACK('3','6','8','6','4','0','0') ; 3686400 30 > 30
-	PACK('7','3','7','2','8','0','0') ; 7372800 31 > 31
 #endif
 ;
 ; Set RomWBW HBIOS Diagnostic Level
@@ -961,10 +858,10 @@ reboot:
 ;
 #if (BIOS == BIOS_WBW)
 ;
-#if (DSKYENABLE)
-	ld	hl,msg_boot		; point to boot message
-	call	dsky_show		; display message
-#endif
+	;ld	hl,msg_boot		; point to boot message
+	;call	dsky_show		; display message
+	ld	c,DSKY_MSG_LDR_BOOT	; point to boot message
+	call	dsky_msg                ; display message
 ;
 	; cold boot system
 	ld	b,BF_SYSRESET		; system restart
@@ -993,10 +890,10 @@ romload:
 	ld	h,(ix+ra_name+1)
 	call	pstr
 ;
-#if (DSKYENABLE)
-	ld	hl,msg_load		; point to load message
-	call	dsky_show		; display message
-#endif
+	;ld	hl,msg_load		; point to load message
+	;call	dsky_show		; display message
+	ld	c,DSKY_MSG_LDR_LOAD	; point to load message
+	call	dsky_msg                ; display message
 ;
 #if (BIOS == BIOS_WBW)
 ;
@@ -1077,10 +974,10 @@ romload1:
 ;
 #endif
 ;
-#if (DSKYENABLE)
-	ld	hl,msg_go		; point to go message
-	call	dsky_show		; display message
-#endif
+	;ld	hl,msg_go		; point to go message
+	;call	dsky_show		; display message
+	ld	c,DSKY_MSG_LDR_GO	; point to go message
+	call	dsky_msg                ; display message
 ;
 	ld	l,(ix+ra_ent)		; HL := app entry address
 	ld	h,(ix+ra_ent+1)		; ...
@@ -1093,50 +990,42 @@ romload1:
 diskboot:
 ;
 	; Notify user
-	ld	hl,str_boot1
+	ld	hl,str_boot1		; "Booting Disk Unit"
 	call	pstr
 	ld	a,(bootunit)
 	call	prtdecb
-	ld	hl,str_boot2
+	ld	hl,str_boot2		; "Slice"
 	call	pstr
 	ld	a,(bootslice)
 	call	prtdecb
 ;
-#if (DSKYENABLE)
-	ld	hl,msg_load		; point to load message
-	call	dsky_show		; display message
-#endif
+	;ld	hl,msg_load		; point to load message
+	;call	dsky_show		; display message
+	ld	c,DSKY_MSG_LDR_LOAD	; point to load message
+	call	dsky_msg                ; display message
 ;
 #if (BIOS == BIOS_WBW)
 ;
-	; Check that drive actually exists
-	ld	b,BF_SYSGET		; HBIOS func: sys get
-	ld	c,BF_SYSGET_DIOCNT	; HBIOS sub-func: disk count
-	rst	08			; do it, E=disk count
-	ld	a,(bootunit)		; get boot disk unit
-	cp	e			; compare to count
-	jp	nc,err_nodisk		; handle no disk err
-;
-	; If non-zero slice requested, confirm device can handle it
-	ld	a,(bootslice)		; get slice
-	or	a			; set flags
-	jr	z,diskboot0		; slice 0, skip slice check
-	ld	a,(bootunit)		; get disk unit
-	ld	c,a			; put in C for func call
-	ld	b,BF_DIODEVICE		; HBIOS func: device info
+	; Get Extended information for the Device, and Slice
+	ld	b,BF_EXTSLICE		; HBIOS func: SLICE CALC
+	ld	a,(bootunit)		; passing boot unit
+	ld	d,a
+	ld	a,(bootslice)		; and slice
+	ld	e,a
 	rst	08			; do it
-	bit	5,c			; high capacity device?
-	jp	z,err_noslice		; no such slice, handle err
+;
+	; Check errors from the Function
+	cp	ERR_NOUNIT		; compare to no unit error
+	jp	z,err_nodisk		; handle no disk err
+	cp	ERR_NOMEDIA		; no media in the device
+	jp	z,err_nomedia		; handle the error
+	cp	ERR_RANGE		; slice is invalid
+	jp	z,err_badslice		; bad slice, handle err
+	or	a			; any other error
+	jp	nz,err_diskio		; handle as general IO error
 ;
 diskboot0:
-	; Sense media
-	ld	a,(bootunit)		; get boot disk unit
-	ld	c,a			; put in C for func call
-	ld	b,BF_DIOMEDIA		; HBIOS func: media
-	ld	e,1			; enable media check/discovery
-	rst	08			; do it
-	jp	nz,err_diskio		; handle error
-	ld	a,e			; media id to A
+	ld	a,c			; media id to A
 	ld	(mediaid),a		; save media id
 ;
 #endif
@@ -1173,8 +1062,6 @@ diskboot0:
 	ld	a,4			; assume legacy hard disk
 	ld	(mediaid),a		; save media id
 ;
-#endif
-;
 diskboot1:
 	; Initialize working LBA value
 	ld	hl,0			; zero HL
@@ -1249,13 +1136,15 @@ diskboot6:
 	dec	a			; dec loop downcounter
 	jr	diskboot5		; and loop
 ;
+#endif
+;
 diskboot7:
 	ld	(lba),hl		; update lba, low word
 	ld	(lba+2),de		; update lba, high word
 ;
 diskboot8:
 	; Note that we could be coming from diskboot1!
-	ld	hl,str_ldsec		; display prefix
+	ld	hl,str_ldsec		; display prefix "Sector Ox"
 	call	pstr			; do it
 	ld	hl,(lba)		; recover lba loword
 	ld	de,(lba+2)		; recover lba hiword
@@ -1386,15 +1275,17 @@ diskboot10:
 ;
 	call	pdot			; show progress
 ;
-#if (DSKYENABLE)
-	ld	hl,msg_go		; point to go message
-	call	dsky_show		; display message
-#endif
+	;ld	hl,msg_go		; point to go message
+	;call	dsky_show		; display message
+	ld	c,DSKY_MSG_LDR_GO	; point to go message
+	call	dsky_msg                ; display message
 ;
 	; Jump to entry vector
 	ld	hl,(bb_cpment)		; get entry vector
 	jp	(hl)			; and go there
 ;
+;-----------------------------------------------------------------------
+;
 ; Read disk sector(s)
 ; DE:HL is LBA, B is sector count, C is disk unit
 ;
@@ -1506,10 +1397,13 @@ pvol1:
 nl2:
 	call	nl			; double newline
 nl:
+	push	af
 	ld	a,cr			; cr
 	call	cout			; send it
 	ld	a,lf			; lf
-	jp	cout			; send it and return
+	call	cout			; send it and return
+	pop	af
+	ret
 ;
 ; Print a dot on console
 ;
@@ -1921,6 +1815,110 @@ hexconv:
 	daa
 	ret
 ;
+#if (BIOS == BIOS_WBW)
+;
+; Get numeric chars and convert to 32-bit number returned in DE:HL
+; IX points to start of char buffer
+; Carry flag set on overflow
+;
+getnum32:
+	ld	de,0		; Initialize DE:HL
+	ld	hl,0		; ... to zero
+getnum32a:
+	ld	a,(ix)		; get the active char
+	cp	'0'		; compare to ascii '0'
+	jr	c,getnum32c	; abort if below
+	cp	'9' + 1		; compare to ascii '9'
+	jr	nc,getnum32c	; abort if above
+;
+	; valid digit, multiply DE:HL by 10
+	; X * 10 = (((x * 2 * 2) + x)) * 2
+	push	de
+	push	hl
+;
+	call	getnum32e	; DE:HL *= 2
+	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
+;
+	call	getnum32e	; DE:HL *= 2
+	jr	c,getnum32d	; if overflow, ret w/ CF & stack pop
+;
+	pop	bc		; DE:HL += X
+	add	hl,bc
+	ex	de,hl
+	pop	bc
+	adc	hl,bc
+	ex	de,hl
+	ret	c		; if overflow, ret w/ CF
+;
+	call	getnum32e	; DE:HL *= 2
+	ret	c		; if overflow, ret w/ CF
+;
+	; now add in new digit
+	ld	a,(ix)		; get the active char
+	sub	'0'		; make it binary
+	add	a,l		; add to L, CF updated
+	ld	l,a		; back to L
+	jr	nc,getnum32b	; if no carry, done
+	inc	h		; otherwise, bump H
+	jr	nz,getnum32b	; if no overflow, done
+	inc	e		; otherwise, bump E
+	jr	nz,getnum32b	; if no overflow, done
+	inc	d		; otherwise, bump D
+	jr	nz,getnum32b	; if no overflow, done
+	scf			; set carry flag to indicate overflow
+	ret			; and return
+;
+getnum32b:
+	inc	ix		; bump to next char
+	jr	getnum32a	; loop
+;
+getnum32c:
+	; successful completion
+	xor	a		; clear flags
+	ret			; and return
+;
+getnum32d:
+	; special overflow exit with stack fixup
+	pop	hl		; burn 2
+	pop	hl		; ... stack entries
+	ret			; and return
+;
+getnum32e:
+	; DE:HL := DE:HL * 2
+	sla	l
+	rl	h
+	rl	e
+	rl	d
+	ret
+;
+; Integer divide DE:HL by C
+; result in DE:HL, remainder in A
+; clobbers F, B
+;
+div32x8:
+	xor	a
+	ld	b,32
+div32x8a:
+  	add	hl,hl
+	rl	e
+	rl	d
+	rla
+	cp	c
+	jr	c,div32x8b
+	sub	c
+	inc	l
+div32x8b:
+  	djnz	div32x8a
+	ret
+;
+DIV32X8	.equ	div32x8
+;
+#include "encode.asm"	; baud rate encoding routine
+;
+encode	.equ	ENCODE
+;
+#endif
+;
 ;=======================================================================
 ; Console character I/O helper routines (registers preserved)
 ;=======================================================================
@@ -2214,14 +2212,20 @@ dsky_highlightkeysoff:
 	ld	hl,dsky_highlightkeyledsoff
 	jr 	dsky_putled
 ;
+#endif
+;
+dsky_msg:
+#if (BIOS == BIOS_WBW)
+	ld	b,BF_DSKYMESSAGE
+	jr	dsky_hbcall
+;
 dsky_hbcall:
 	ld	a,(dskyact)
 	or	a
 	ret	z
 	rst	08
-	ret
-;
 #endif
+	ret
 ;
 ;=======================================================================
 ; Error handlers
@@ -2235,10 +2239,17 @@ err_nodisk:
 	ld	hl,str_err_nodisk
 	jr	err
 ;
+err_nomedia:
+	ld	hl,str_err_nomedia
+	jr	err
+;
 err_noslice:
 	ld	hl,str_err_noslice
 	jr	err
 ;
+err_badslice:
+	ld	hl,str_err_badslice
+	jr	err
 err_nocon:
 	ld	hl,str_err_nocon
 	jr	err
@@ -2272,7 +2283,9 @@ err:
 str_err_prefix	.db	bel,"\r\n\r\n*** ",0
 str_err_invcmd	.db	"Invalid command",0
 str_err_nodisk	.db	"Disk unit not available",0
+str_err_nomedia	.db	"Media not present",0
 str_err_noslice	.db	"Disk unit does not support slices",0
+str_err_badslice .db	"Slice specified is illegal",0
 str_err_nocon	.db	"Invalid character unit specification",0
 str_err_diskio	.db	"Disk I/O failure",0
 str_err_sig	.db	"No system image on disk",0
@@ -2325,13 +2338,22 @@ str_help	.db	"\r\n"
 #endif
 		.db	"\r\n  <u>[.<s>]   - Boot Disk Unit/Slice"
 		.db	0
-;
-#if (DSKYENABLE)
-msg_sel		.db	$7f,$5c,$5c,$78,$53,$00,$00,$00	; "boot?   "
-msg_boot	.db	$7f,$5c,$5c,$78,$80,$80,$80,$00	; "boot... "
-msg_load	.db	$38,$5c,$5f,$5e,$80,$80,$80,$00	; "load... "
-msg_go		.db	$3d,$5c,$80,$80,$80,$00,$00,$00	; "go...   "
-#endif
+;;;;
+;;;#if (DSKYENABLE)
+;;;  #if (GM7303ENABLE)
+;;;		; The GM7303 has an ASCII LCD display
+;;;msg_sel		.db	"Boot?", $00
+;;;msg_boot	.db	"Boot...", $00
+;;;msg_load	.db	"Load...", $00
+;;;msg_go		.db	"Go...", $00
+;;;  #else
+;;;		; Other DSKY devices use 7 segment LEDs
+;;;msg_sel		.db	$7f,$5c,$5c,$78,$53,$00,$00,$00	; "boot?   "
+;;;msg_boot	.db	$7f,$5c,$5c,$78,$80,$80,$80,$00	; "boot... "
+;;;msg_load	.db	$38,$5c,$5f,$5e,$80,$80,$80,$00	; "load... "
+;;;msg_go		.db	$3d,$5c,$80,$80,$80,$00,$00,$00	; "go...   "
+;;;  #endif
+;;;#endif
 ;
 ;=======================================================================
 ; DSKY keypad led matrix masks
@@ -2404,8 +2426,8 @@ ra_ent		.equ	12
 ;
 ; Note: The loadable ROM images are placed in ROM banks BID_IMG0 and
 ; BID_IMG1.  However, RomWBW supports a mechanism to load a complete
-; new system dynamically as a runnable application (see appboot and
-; imgboot in hbios.asm).  In this case, the contents of BID_IMG0 will
+; new system dynamically as a runnable application (see appboot
+; in hbios.asm).  In this case, the contents of BID_IMG0 will
 ; be pre-loaded into the currently executing ram bank thereby allowing
 ; those images to be dynamically loaded as well.  To support this
 ; concept, a pseudo-bank called bid_cur is used to specify the images
@@ -2425,21 +2447,22 @@ ra_entsiz	.equ	$ - ra_tbl
 ra_ent(str_smon,  'S',	   $FF,	  bid_cur , $8000,       $8000,   $0001,   s100mon)
   #endif
 #endif
-ra_ent(str_zsys,  'Z',	   KY_FW, BID_IMG0, ZSYS_IMGLOC, CPM_LOC, CPM_SIZ, CPM_ENT)
 ra_ent(str_cpm22, 'C',	   KY_BK, BID_IMG0, CPM_IMGLOC,  CPM_LOC, CPM_SIZ, CPM_ENT)
+ra_ent(str_zsys,  'Z',	   KY_FW, BID_IMG0, ZSYS_IMGLOC, CPM_LOC, CPM_SIZ, CPM_ENT)
 #if (BIOS == BIOS_WBW)
-ra_ent(str_fth,	  'F',	   KY_EX, BID_IMG1, FTH_IMGLOC,  FTH_LOC, FTH_SIZ, FTH_LOC)
 ra_ent(str_bas,	  'B',	   KY_DE, BID_IMG1, BAS_IMGLOC,  BAS_LOC, BAS_SIZ, BAS_LOC)
 ra_ent(str_tbas,  'T',	   KY_EN, BID_IMG1, TBC_IMGLOC,  TBC_LOC, TBC_SIZ, TBC_LOC)
+ra_ent(str_fth,	  'F',	   KY_EX, BID_IMG1, FTH_IMGLOC,  FTH_LOC, FTH_SIZ, FTH_LOC)
 ra_ent(str_play,  'P',	   $FF,	  BID_IMG1, GAM_IMGLOC,  GAM_LOC, GAM_SIZ, GAM_LOC)
-ra_ent(str_egg,	  'E'+$80, $FF,   BID_IMG1, EGG_IMGLOC,  EGG_LOC, EGG_SIZ, EGG_LOC)
 ra_ent(str_net,   'N',	   $FF,	  BID_IMG1, NET_IMGLOC,  NET_LOC, NET_SIZ, NET_LOC)
 ra_ent(str_upd,   'X',	   $FF,	  BID_IMG1, UPD_IMGLOC,  UPD_LOC, UPD_SIZ, UPD_LOC)
+ra_ent(str_nvr,   'W',	   $FF,	  BID_IMG1, NVR_IMGLOC,  NVR_LOC, NVR_SIZ, NVR_LOC)
 ra_ent(str_user,  'U',	   $FF,	  BID_IMG1, USR_IMGLOC,  USR_LOC, USR_SIZ, USR_LOC)
 #endif
 #if (DSKYENABLE)
 ra_ent(str_dsky,  'Y'+$80, KY_GO, BID_IMG0, MON_IMGLOC,  MON_LOC, MON_SIZ, MON_DSKY)
 #endif
+ra_ent(str_egg,	  'E'+$80, $FF,   BID_IMG1, EGG_IMGLOC,  EGG_LOC, EGG_SIZ, EGG_LOC)
 		.dw	0		; table terminator
 ;
 ra_tbl_app:
@@ -2462,6 +2485,7 @@ str_bas		.db	"BASIC",0
 str_tbas	.db	"Tasty BASIC",0
 str_play	.db	"Play a Game",0
 str_upd		.db	"XModem Flash Updater",0
+str_nvr		.db	"RomWBW Configure", 0
 str_user	.db	"User App",0
 str_egg		.db	"",0
 str_net		.db	"Network Boot",0
@@ -2488,7 +2512,7 @@ dma		.dw	0		; address for load
 sps		.dw	0		; sectors per slice
 mediaid		.db	0		; media id
 ;
-appboot		.db	0		; app boot if != 0
+bootmode	.db	0		; ROM, APP, or IMG boot
 ra_tbl_loc	.dw	0		; points to active ra_tbl
 bootunit	.db	0		; boot disk unit
 bootslice	.db	0		; boot disk slice
@@ -2503,7 +2527,6 @@ ciocnt		.db	1		; count of char units
 savcon		.db	0		; con save for conpoll
 conpend		.db	$ff		; pending con unit (first <space> pressed)
 #endif
-
 ;
 ;=======================================================================
 ; Pad remainder of ROM Loader
diff --git a/Source/HBIOS/rp5rtc.asm b/Source/HBIOS/rp5rtc.asm
index 66753fcc..2a7b99a6 100644
--- a/Source/HBIOS/rp5rtc.asm
+++ b/Source/HBIOS/rp5rtc.asm
@@ -83,9 +83,11 @@ RP5RTC_INIT:
 RP5RTC_INIT1:
 ;	ENSURE DEVICE IS RESET AND NOT IN TEST MODE
 	LD	A, REG_TEST		; SELECT TEST REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 	CALL	DLY16
 	XOR	A
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A		; TURN OFF ALL TEST MODE BITS
 
 	LD	B, MODE_ALRMST
@@ -94,8 +96,10 @@ RP5RTC_INIT1:
 	CALL	RP5RTC_ENTIME
 
 	LD	A, REG_12_24		; SET TO 24 HOUR CLOCK
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 	LD	A, 1
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A
 
 	CALL	RP5RTC_RDTIM
@@ -179,7 +183,9 @@ RP5RTC_GETBYT:
 	LD	B, MODE_RAM0
 	CALL	RP5RTC_SETMD
 	LD	A, C			; SELECT NVRAM INDEX
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
+	EZ80_IO
 	IN	A, (RP5RTC_DAT)
 	AND	$0F			; RETRIEVE UNIT NIBBLE
 	LD	E, A
@@ -187,7 +193,9 @@ RP5RTC_GETBYT:
 	LD	B, MODE_RAM1
 	CALL	RP5RTC_SETMD
 	LD	A, C			; SELECT NVRAM INDEX
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
+	EZ80_IO
 	IN	A, (RP5RTC_DAT)
 	AND	$0F			; RETRIEVE UNIT NIBBLE
 	RLCA
@@ -218,14 +226,17 @@ RP5RTC_SETBYT:
 	LD	B, MODE_RAM0
 	CALL	RP5RTC_SETMD
 	LD	A, C			; SELECT NVRAM INDEX
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 	LD	A, E
 	AND	$0F
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A
 
 	LD	B, MODE_RAM1
 	CALL	RP5RTC_SETMD
 	LD	A, C			; SELECT NVRAM INDEX
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 	LD	A, E
 	AND	$F0
@@ -233,6 +244,7 @@ RP5RTC_SETBYT:
 	RRCA
 	RRCA
 	RRCA
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A
 
 	XOR	A			; SIGNAL SUCCESS
@@ -285,7 +297,7 @@ RP5RTC_SETTIM:
 	LD	(HB_DSTBNK),A		; SET IT
 	LD	DE,RP5RTC_BCDBUF	; DEST ADR
 	LD	BC,RP5RTC_BUFSIZ	; LENGTH
-	CALL	HB_BNKCPY		; COPY THE CLOCK DATA
+	CALL	HB_BNKCPY		; COPY THE RPC DATA
 ;
 	LD	B, MODE_TIMEST
 	CALL	RP5RTC_SETMD
@@ -374,11 +386,14 @@ RP5RTC_RDTIM:
 ; MODE IN B (MODE_TIMEST, MODE_ALRMST, MODE_RAM0, MODE_RAM1)
 RP5RTC_SETMD:
 	LD	A, REG_MODE			; SELECT MODE REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 
+	EZ80_IO
 	IN	A, (RP5RTC_DAT)
 	AND	MD_TIME | MD_ALRM
 	OR	B
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A			; ASSIGN MODE
 	RET
 
@@ -391,14 +406,18 @@ RP5RTC_ENTIME:
 ; REGISTER IN B
 RP5RTC_RDVL:
 	LD	A, B				; SELECT UNIT REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
+	EZ80_IO
 	IN	A, (RP5RTC_DAT)
 	AND	$0F				; RETRIEVE UNIT NIBBLE
 	LD	L, A
 
 	INC	B
 	LD	A, B				; SELECT TENS REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
+	EZ80_IO
 	IN	A, (RP5RTC_DAT)
 	AND	$0F
 	RLCA
@@ -416,13 +435,16 @@ RP5RTC_RDVL:
 RP5RTC_WRVL:
 	LD	C, A
 	LD	A, B				; SELECT UNIT REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 
 	LD	A, C				; WRITE C (ONLY LOW NIBBLE WILL BE USED)
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A
 
 	INC	B
 	LD	A, B				; SELECT TENS REGISTER
+	EZ80_IO
 	OUT	(RP5RTC_REG), A
 
 	LD	A, C				; SHIFT TOP NIBBLE TO LOW NIBBLE
@@ -430,6 +452,7 @@ RP5RTC_WRVL:
 	RRCA
 	RRCA
 	RRCA
+	EZ80_IO
 	OUT	(RP5RTC_DAT), A			; WRITE IT
 
 	RET
diff --git a/Source/HBIOS/scon.asm b/Source/HBIOS/scon.asm
index 1d3b4a5d..9d8452de 100644
--- a/Source/HBIOS/scon.asm
+++ b/Source/HBIOS/scon.asm
@@ -5,7 +5,7 @@
 ;
 ; TODO:
 ;
-SCON_IOBASE	.EQU	$00
+SCON_IOBASE	.EQU	$0000			; NOTE: 16-BIT I/O
 ;
 SCON_STATUS	.EQU	SCON_IOBASE
 SCON_DATA	.EQU	SCON_IOBASE + 1
@@ -25,6 +25,9 @@ SCON_ROWS	.EQU	40
 SCON_INIT:
 	CALL	NEWLINE
 	PRTS("SCON:$")
+	PRTS(" IO=0x$")			; FORMATTING
+	LD	A,SCON_IOBASE
+	CALL	PRTHEXBYTE
 ;
 	; DISPLAY CONSOLE DIMENSIONS
 	CALL	PC_SPACE
@@ -43,7 +46,8 @@ SCON_INIT:
 	LD	E,CIODEV_SCON		; DEVICE TYPE
 	LD	BC,SCON_FNTBL		; BC := FUNCTION TABLE ADDRESS
 	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
-	LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	;;;LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	CALL	CIO_SETCRT		; SET OURSELVES AS THE CRT DEVICE
 ;
 	XOR	A			; SIGNAL SUCCESS
 	RET
@@ -67,14 +71,18 @@ SCON_FNTBL:
 SCON_IN:
 	CALL	SCON_IST		; CHECK FOR CHAR PENDING
 	JR	Z,SCON_IN		; WAIT FOR IT IF NECESSARY
-	IN0	A,(SCON_DATA)		; READ THE CHAR FROM PROPIO
+	;IN0	A,(SCON_DATA)		; READ THE CHAR FROM PROPIO
+	LD	BC,SCON_DATA		; DATA PORT (16 BIT I/O)
+	IN	A,(C)			; READ THE CHAR FROM PROPIO
 	LD	E,A
 	RET
 ;
 ;
 ;
 SCON_IST:
-	IN0	A,(SCON_STATUS)		; READ LINE STATUS REGISTER
+	;IN0	A,(SCON_STATUS)		; READ LINE STATUS REGISTER
+	LD	BC,SCON_STATUS		; STATUS PORT (16-BIT I/O)
+	IN	A,(C)			; READ LINE STATUS REGISTER
 	AND	SCON_KBDRDY		; ISOLATE KBDRDY
 	JP	Z,CIO_IDLE		; RETURN VIA IDLE PROCESSING
 	OR	$FF			; SET A=$FF TO SIGNAL READY
@@ -86,13 +94,17 @@ SCON_OUT:
 	CALL	SCON_OST		; CHECK FOR OUTPUT READY
 	JR	Z,SCON_OUT		; WAIT IF NECESSARY
 	LD	A,E			; RECOVER THE CHAR TO WRITE
-	OUT0	(SCON_DATA),A		; WRITE THE CHAR TO PROPIO
+	;OUT0	(SCON_DATA),A		; WRITE THE CHAR TO PROPIO
+	LD	BC,SCON_DATA		; DATA PORT (16 BIT I/O)
+	OUT	(C),A			; WRITE THE CHAR TO PROPIO
 	RET
 ;
 ;
 ;
 SCON_OST:
-	IN0	A,(SCON_STATUS)		; READ LINE STATUS REGISTER
+	;IN0	A,(SCON_STATUS)		; READ LINE STATUS REGISTER
+	LD	BC,SCON_STATUS		; STATUS PORT (16-BIT I/O)
+	IN	A,(C)			; READ LINE STATUS REGISTER
 	AND	SCON_DSPRDY 		; ISOLATE DSPRDY
 	JP	Z,CIO_IDLE		; RETURN VIA IDLE PROCESSING
 	OR	$FF			; SET A=$FF TO SIGNAL READY
diff --git a/Source/HBIOS/sd.asm b/Source/HBIOS/sd.asm
index f96abca5..3873e36e 100644
--- a/Source/HBIOS/sd.asm
+++ b/Source/HBIOS/sd.asm
@@ -125,8 +125,8 @@ SD_OPRREG	.EQU	RTCIO		; USES RTC LATCHES FOR OPERATION
 SD_OPRDEF	.EQU	%00000001	; QUIESCENT STATE
 SD_OPRMSK	.EQU	%10000111	; MASK FOR BITS WE OWN IN RTC LATCH PORT
 SD_INPREG	.EQU	RTCIO		; INPUT REGISTER IS RTC
-SD_CS0		.EQU	%00000100	; RTC:2 IS SELECT
-SD_CLK		.EQU	%00000010	; RTC:1 IS CLOCK
+SD_CS0	.EQU	%00000100	; RTC:2 IS SELECT
+SD_CLK	.EQU	%00000010	; RTC:1 IS CLOCK
 SD_DI		.EQU	%00000001	; RTC:0 IS DATA IN (CARD <- CPU)
 SD_DO		.EQU	%10000000	; RTC:7 IS DATA OUT (CARD -> CPU)
 SD_IOBASE	.EQU	SD_OPRREG	; IOBASE
@@ -242,7 +242,21 @@ SD_TRDR		.EQU	Z180_TRDR
 SD_IOBASE	.EQU	SD_OPRREG	; IOBASE
 SD_INVCS	.EQU	TRUE		; INVERT CS
 		DEVECHO	"SC"
+RTCDEF		.SET	RTCDEF | SD_OPRDEF	; SET DEFAULT IN HBIOS MAINLINE
+#ENDIF
 ;
+#IF (SDMODE == SDMODE_GM)		; GM
+SD_DEVMAX	.EQU	2		; NUMBER OF PHYSICAL UNITS (SOCKETS)
+SD_OPRREG	.EQU	RTCIO		; USES RTC LATCHES FOR OPERATION
+SD_OPRDEF	.EQU	%00000100	; QUIESCENT STATE (/CS1 & /CS2 DEASSERTED)
+SD_OPRMSK	.EQU	%00000100	; MASK FOR BITS WE OWN IN RTC LATCH PORT
+SD_CS0		.EQU	%00000100	; RTC:2 IS SELECT FOR PRIMARY SPI CARD
+SD_CS1		.EQU	%00000000	; RTC:3 IS SELECT FOR SECONDARY SPI CARD
+SD_CNTR		.EQU	Z180_CNTR
+SD_TRDR		.EQU	Z180_TRDR
+SD_IOBASE	.EQU	SD_OPRREG	; IOBASE
+SD_INVCS	.EQU	TRUE		; INVERT CS
+		DEVECHO	"GM"
 RTCDEF		.SET	RTCDEF | SD_OPRDEF	; SET DEFAULT IN HBIOS MAINLINE
 #ENDIF
 ;
@@ -294,7 +308,7 @@ SD_CS1		.EQU	%00010000	; IN/OUT:SD_OPREG:4 = CS1, SDCARD1 CS, IN=1 Card present
   #ENDIF
 SD_IOBASE	.EQU	SD_BASE		; IOBASE
 SD_INVCS	.EQU	FALSE		; INVERT CS
-		DEVECHO	"DUO"
+		DEVECHO	"MT"
 #ENDIF
 ;
 ;
@@ -372,10 +386,10 @@ SD_CS0		.EQU	%00000100	; SELECT
 SD_DI		.EQU	%00000001	; DATA IN (CARD <- CPU) MOSI
 SD_DO		.EQU	%00000001	; DATA OUT (CARD -> CPU) MISO
 SD_CINIT	.EQU	FALSE		; INITIALIZE OUTPUT PORT
-SD_INVCS	.EQU	FALSE		; INVERT CS
+SD_INVCS	.EQU	TRUE		; INVERT CS
 		DEVECHO	"Z80R"
 #ENDIF
-
+;
 ; FOR NOW WE JUST HOOK UP ONE UNIT. THERE ARE EIGHT PORTS FOR DIFFERENT
 ; THINGS BUT THIS WILL GET US GOING
 #IF (SDMODE == SDMODE_EPITX)		; Z180 ITX - CSIO, 82C55 for CS
@@ -389,6 +403,39 @@ SD_IOBASE	.EQU	SD_OPRREG	; IOBASE
 SD_INVCS	.EQU	FALSE		; INVERT CS
 		DEVECHO	"EPITX"
 #ENDIF
+;
+; S100 FPGA Z80 SPI-BASED SD CARD
+;
+; BASE PORT: $6C
+;   BASE + 0: DATA IN/OUT
+;   BASE + 1: SPI CLOCK SPEED (0=LOW 4KHZ, 1=HIGH 10MHZ)
+;   BASE + 2: SELECT (W), STATUS (R)
+;   BASE + 3: START READ (IN OPCODE), START WRITE (OUT OPCODE), ANY VALUE
+;   
+; STATUS BITS:
+;   7: BUSY (1=BUSY)
+;   0: PRIMARY DEVICE SELECT STATUS (1=SELECTED)
+;   1: SECONDARY DEVICE SELECT STATUS  (1=SELECTED)
+;
+; SELECT BITS (INVERTED!!!):
+;   0: PRIMARY DEVICE, USE VALUE ~$01
+;   1: SECONDARY DEVICE, USE VALUE ~$02
+;
+#IF (SDMODE == SDMODE_FZ80)		; S100 FPGA Z80
+SD_IOBASE	.EQU	$6C		; IOBASE
+SD_DATA		.EQU	SD_IOBASE + 0	; DATA IN/OUT PORT
+SD_CLKSEL	.EQU	SD_IOBASE + 1	; CLOCK SPEED SELECT PORT
+SD_SELSTAT	.EQU	SD_IOBASE + 2	; DEVICE SELECT PORT (W) / STATUS (R)
+SD_ACTION	.EQU	SD_IOBASE + 3	; INITIATE R/W ACTION VIA IN/OUT
+;
+SD_DEVMAX	.EQU	2		; NUMBER OF PHYSICAL UNITS (SOCKETS)
+SD_OPRREG	.EQU	SD_SELSTAT	; SELECT/STATUS PORT
+SD_OPRDEF	.EQU	$FF		; QUIESCENT STATE
+SD_CS0		.EQU	%00000001	; PRIMARY DEVICE SELECT BIT
+SD_CS1		.EQU	%00000010	; SECONDARY DEVICE SELECT BIT
+SD_INVCS	.EQU	TRUE		; INVERT CS
+		DEVECHO	"FZ80"
+#ENDIF
 ;
 		DEVECHO	", IO="
 		DEVECHO	SD_IOBASE
@@ -413,6 +460,7 @@ SD_CMD_READ_SNGL_BLK	.EQU	$40 + 17	; $51, CMD17 -> R1
 SD_CMD_WRITE_BLOCK	.EQU	$40 + 24	; $58, CMD24 -> R1
 SD_CMD_APP_CMD		.EQU	$40 + 55	; $77, CMD55 -> R1
 SD_CMD_READ_OCR		.EQU	$40 + 58	; $7A, CMD58 -> R3
+SD_CMD_CRC_ON_OFF	.EQU	$40 + 59	; $7B, CMD59 -> R1
 ;
 ; SD CARD APPLICATION COMMANDS (PRECEDED BY APP_CMD COMMAND)
 ;
@@ -574,7 +622,7 @@ SD_INIT:
 	CALL	PRTHEXBYTE
 #ENDIF
 ;
-#IF (SDMODE == SDMODE_SC)
+#IF ((SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 	PRTS(" MODE=SC$")
   #IF (SDCSIOFAST)
 	PRTS(" FAST$")
@@ -640,6 +688,13 @@ SD_INIT:
 	LD	A,SD_TRDR
 	CALL	PRTHEXBYTE
 #ENDIF
+;
+#IF (SDMODE == SDMODE_FZ80)
+	PRTS(" MODE=FZ80$")
+	PRTS(" IO=0x$")
+	LD	A,SD_IOBASE
+	CALL	PRTHEXBYTE
+#ENDIF
 ;
 	CALL	SD_PROBE		; CHECK FOR HARDWARE
 	JR	Z,SD_INIT00		; CONTINUE IF PRESENT
@@ -901,19 +956,12 @@ SD_IO:
 	OR	A			; SET FLAGS
 	RET	Z			; ZERO SECTOR I/O, RETURN W/ E=0 & A=0
 ;
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
-	; CONSIDER CAPTURING CURRENT CNTR VALUE HERE AND USE IT
-	; IN SD_CSIO_DEF
-
 	; SET CSIO FOR HIGH SPEED OPERATION
-	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
-	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
-	XOR	A			; ZERO MEANS MAX SPEED
-	OUT0	(SD_CNTR),A		; NOW SET CSIO PORT
+	CALL	SD_SPD_FAST
+;
 	; HOOK RETURN TO RESTORE CSIO TO DEFAULT SPEED
-	LD	HL,SD_CSIO_DEF		; ROUTE RETURN
+	LD	HL,SD_SPD_STD		; ROUTE RETURN
 	PUSH	HL			; ... THRU CSIO RESTORE
-#ENDIF
 ;
 #IF (SDTRACE == 1)
 	LD	HL,SD_PRTERR		; SET UP SD_PRTERR
@@ -1005,6 +1053,9 @@ SD_MEDIA:
 	JR	NZ,SD_MEDIA1		; ERROR ACTIVE, GO RIGHT TO RESET
 ;
 	; USE SEND_CSD TO CHECK CARD
+	;;;LD	A,'C'			;;;
+	;;;CALL	COUT			;;;
+	CALL	SD_SPD_FAST		; GO FAST FOR COMPATIBILITY
 	CALL	SD_SELUNIT		; SET CUR UNIT
 	LD	A,SD_CMD_SEND_CSD	; SEND_CSD
 	CALL	SD_INITCMD		; SETUP COMMAND BUFFER
@@ -1017,9 +1068,14 @@ SD_MEDIA:
 	JR	Z,SD_MEDIA2		; IF SUCCESS, BYPASS RESET
 ;
 SD_MEDIA1:
+	;;;LD	A,'R'			;;;
+	;;;CALL	COUT			;;;
 	CALL	SD_RESET		; RESET CARD
 ;
 SD_MEDIA2:
+	;;;LD	A,'D'			;;;
+	;;;CALL	COUT			;;;
+	CALL	SD_SPD_STD		; BACK TO STD SPEED
 	LD	A,(IY+SD_STAT)		; GET STATUS
 	OR	A			; SET FLAGS
 	LD	D,0			; NO MEDIA CHANGE DETECTED
@@ -1032,7 +1088,6 @@ SD_MEDIA2:
 ;
 ;
 ;
-;
 SD_SEEK:
 	BIT	7,D			; CHECK FOR LBA FLAG
 	CALL	Z,HB_CHS2LBA		; CLEAR MEANS CHS, CONVERT TO LBA
@@ -1080,9 +1135,7 @@ SD_INITCARD:
 	CALL	SD_CHKCD		; CHECK CARD DETECT
 	JP	Z,SD_NOMEDIA		; Z=NO MEDIA, HANDLE IF SO
 ;
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
-	CALL	SD_CSIO_DEF		; ENSURE CSIO AT DEFAULT SPEED
-#ENDIF
+	CALL	SD_SPD_SLOW		; SET SLOW SPEED FOR INIT
 ;
 	; WAKE UP THE CARD, KEEP DIN HI (ASSERTED) AND /CS HI (DEASSERTED)
 	LD	B,$10	; MIN 74 CLOCKS REQUIRED, WE USE 128 ($10 * 8)
@@ -1093,8 +1146,8 @@ SD_INITCARD1:
 	POP	BC			; RESTORE LOOP CONTROL
 	DJNZ	SD_INITCARD1		; LOOP AS NEEDED
 ;
-	; MAKE SURE WE FINISH SENDING
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM) | (SDMODE == SDMODE_EPITX))
+	; MAKE SURE CSIO IS DONE SENDING DATA
 	CALL	SD_WAITTX		; WAIT FOR TE TO CLEAR
 	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
 #ENDIF
@@ -1189,9 +1242,28 @@ SD_INITCARD4:
 	CALL	SD_INITCMD		; SETUP COMMAND BUFFER
 	CALL	SD_EXECCMD		; EXECUTE COMMAND
 	RET	NZ			; ABORT ON ERROR
-	; CMD58 WORKED, GET OCR DATA AND SET CARD TYPE
-	CALL	SD_GET			; BITS 31-24
+	; CMD58 WORKED, GET OCR DATA
+	LD	B,4			; 4 BYTES OF OCR
+	LD	HL,SD_BUF		; PUT IN OUR PRIVATE BUFFER
+SD_INITCARD4B:
+	PUSH	BC			; SAVE LOOP CONTROL
+	CALL	SD_GET			; GET NEXT BYTE
+	POP	BC			; RESTORE LOOP CONTROL
+	LD	(HL),A			; SAVE IT
+	INC	HL			; BUMP BUF PTR
+	DJNZ	SD_INITCARD4B		; LOOP AS NEEDED
 	CALL	SD_DONE			; FINISH THE TRANSACTION
+;
+#IF (SDTRACE >= 3)
+	; IF TRACING, DUMP THE OCR CONTENTS
+	CALL	SD_PRTPREFIX
+	LD	DE,SD_STR_OCR
+	CALL	WRITESTR
+	LD	DE,SD_BUF
+	LD	A,4
+	CALL	PRTHEXBUF
+#ENDIF
+	LD	A,(SD_BUF)		; FIRST BYTE OF BUF (BITS 31-24 OF OCR)
 	AND	$40			; ISOLATE BIT 30 (CCS)
 	LD	C,SD_TYPESDSC		; ASSUME V1 CARD
 	JR	Z,SD_INITCARD5		; IF BIT NOT SET, THIS IS SDSC CARD
@@ -1254,7 +1326,7 @@ SD_INITCARD5:
 
 ; HIGH SPEED CSIO OPERATION IS NOW SET AT THE START OF SD_IO
 ;
-;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC))
+;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 ;	; PER SPEC, THE CARD SHOULD NOW BE ABLE TO HANDLE FULL SPEED OPERATION
 ;	; SO, FOR CSIO OPERATION, WE SET CSIO TO MAXIMUM SPEED
 ;	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
@@ -1439,11 +1511,11 @@ SD_SETADDR:
 	PUSH	AF			; SAVE IT
 	LD	A,SD_LBA		; OFFSET OF LBA VALUE
 	CALL	LDHLIYA			; HL := IY + A, REG A TRASHED
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	CALL	LD32			; LOAD IT TO DE:HL, AF IS TRASHED
 	POP	AF			; GET CARD TYPE BACK
 	CP	SD_TYPESDHC		; IS IT V2 OR BETTER?
@@ -1486,8 +1558,10 @@ SD_GOIDLE:
 ;
 SD_GOIDLE1:
 	; SEEMS TO HELP SOME CARDS?
-	;CALL	SD_SELECT		; ASSERT CS
-	;CALL	SD_DONE			; SEND 8 CLOCKS AND DEASSERT CS
+	;;; DEBUG
+	CALL	SD_SELECT		; ASSERT CS
+	CALL	SD_DONE			; SEND 8 CLOCKS AND DEASSERT CS
+	;;; DEBUG
 
 	; SMALL DELAY HERE HELPS SOME CARDS
 	;;LD	DE,300			; 16US * 300 = ~5MS
@@ -1699,8 +1773,11 @@ SD_GETDATA3:
 	LD	A,D
 	OR	E
 	JR	NZ,SD_GETDATA3		; LOOP FOR ALL BYTES
+	;;;CALL	PC_SPACE
 	CALL	SD_GET			; DISCARD CRC BYTE 1
+	;;;CALL	PRTHEXBYTE
 	CALL	SD_GET			; DISCARD CRC BYTE 2
+	;;;CALL	PRTHEXBYTE
 #ENDIF
 	XOR	A			; RESULT IS ZERO
 SD_GETDATA4:
@@ -1811,6 +1888,11 @@ SD_DONE:
 	PUSH	AF
 	LD	A,$FF
 	CALL	SD_PUT
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
+	; MAKE SURE CSIO IS DONE SENDING DATA
+	CALL	SD_WAITTX		; WAIT FOR TE TO CLEAR
+	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
+#ENDIF
 	CALL	SD_DESELECT
 	POP	AF
 	RET
@@ -1830,14 +1912,14 @@ SD_SETUP:
 	OUT	(SD_PPIX),A
 #ENDIF
 ;
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 	; CSIO SETUP FOR Z180 CSIO
 ;	LD	A,2			; DIV 80, 225KHZ @ 18MHZ CLK
 	LD	A,6			; DIV 1280, 14KHZ @ 18MHZ CLK
 	OUT0	(SD_CNTR),A
 #ENDIF
 ;
-#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_N8) | (SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_SC))
+#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_N8) | (SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 	LD	A,(HB_RTCVAL)
 	LD	(SD_OPRVAL),A
 	OUT	(SD_OPRREG),A
@@ -1884,6 +1966,15 @@ SD_SETUP:
 	LD	(SD_OPRVAL),A
 	OUT	(SD_OPRREG),A
 #ENDIF
+;
+#IF (SDMODE == SDMODE_FZ80)
+	LD	A,SD_OPRDEF		; DEFAULT SELECT VALUE
+	LD	(SD_OPRVAL),A		; PUT IN SHADOW
+	OUT	(SD_OPRREG),A		; WRITE TO PORT
+	XOR	A			; LOW SPEED OPERATION
+	LD	(SD_CLKSEL),A		; DO IT
+	CALL	SD_DESELECT		; MAKE SURE CARD(S) ARE NOT SELECTED
+#ENDIF
 ;
 	XOR	A
 	RET
@@ -1927,11 +2018,11 @@ SD_CHKWP:
 ;
 SD_SELECT:
 ;	; FINISH SENDING BEFORE ASSERTING CS!
-;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC))
+;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 ;	CALL	SD_WAITTX
 ;#ENDIF
 ;
-#IF ((SDMODE == SDMODE_SC) | SDMODE == SDMODE_MT))
+#IF ((SDMODE == SDMODE_SC) | (SDMODE == SDMODE_MT) | (SDMODE == SDMODE_FZ80) | (SDMODE == SDMODE_GM))
 	LD	A,(IY+SD_DEV)		; GET CURRENT DEVICE
 	OR	A			; SET FLAGS
 	LD	A,(SD_OPRVAL)		; GET CURRENT OPRVAL BACK
@@ -1949,21 +2040,21 @@ SD_SELECT1:
 	OR	SD_CS1
   #ENDIF
 #ELSE
-#IF (SDMODE == SDMODE_EPITX)
+  #IF (SDMODE == SDMODE_EPITX)
 	LD	A,(SD_OPRVAL)
 	AND	$F8
 	OR	SD_CS0			; WILL DO 1-7 LATER
-#ELSE
+  #ELSE
 	LD	A,(SD_OPRVAL)		; GET CURRENT OPRVAL BACK
 	OR	SD_CS0
-#ENDIF
+  #ENDIF
 #ENDIF
 ;
 SD_SELECT2:
 ; ADJUST BIT(S) FOR INTERFACES USING INVERTED CS BITS
-;#IF ((SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_UART) | (SDMODE == SDMODE_SC))
+;#IF ((SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_UART) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 #IF (SD_INVCS)
-  #IF ((SDMODE == SDMODE_SC) & (SD_DEVCNT > 1))
+  #IF (((SDMODE == SDMODE_SC) | (SDMODE == SDMODE_FZ80) | (SDMODE == SDMODE_GM)) & (SD_DEVCNT > 1))
 	XOR	SD_CS0 | SD_CS1
   #ELSE
 	XOR	SD_CS0
@@ -1972,7 +2063,7 @@ SD_SELECT2:
 	LD	(SD_OPRVAL),A
 	OUT	(SD_OPRREG),A
 ;;
-;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC))
+;#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_GM))
 ;	CALL	DLY32			; DELAY FOR FINAL BIT
 ;#ENDIF
 ;
@@ -1981,7 +2072,7 @@ SD_SELECT2:
 ; DESELECT CARD
 ;
 SD_DESELECT:
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 	; DON'T REMOVE CS UNTIL WE ARE DONE SENDING!
 	CALL	SD_WAITTX		; WAIT FOR TE TO CLEAR
 ;
@@ -1994,20 +2085,24 @@ SD_DESELECT:
 	; TRACES.
 	CALL	DLY32			; DELAY FOR FINAL BIT
 #ENDIF
+;
+#IF (SDMODE == SDMODE_FZ80)
+	;;;CALL	SD_WAITBSY
+#ENDIF
 ;
 	LD	A,(SD_OPRVAL)
-#IF (((SDMODE == SDMODE_SC) | (SDMODE_MT)) & (SD_DEVCNT > 1))
+#IF (((SDMODE == SDMODE_SC) | (SDMODE_MT) | (SDMODE == SDMODE_GM)) & (SD_DEVCNT > 1))
 	AND	~(SD_CS0 | SD_CS1)
 #ELSE
-#if (SDMODE == SDMODE_EPITX)
+#IF (SDMODE == SDMODE_EPITX)
 	OR	7			; CHAN 7 IS USED FOR DESELECTS
 #ELSE
 	AND	~SD_CS0
 #ENDIF
 #ENDIF
 ; ADJUST BIT(S) FOR INTERFACES USING INVERTED CS BITS
-#IF ((SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_UART) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_PIO) | (SDMODE == SDMODE_Z80R))
-  #IF ((SDMODE == SDMODE_SC) & (SD_DEVCNT > 1))
+#IF (SD_INVCS)
+  #IF (((SDMODE == SDMODE_SC) | (SDMODE == SDMODE_FZ80) | (SDMODE == SDMODE_GM)) & (SD_DEVCNT > 1))
 	XOR	SD_CS0 | SD_CS1
   #ELSE
 	XOR	SD_CS0
@@ -2017,7 +2112,7 @@ SD_DESELECT:
 	OUT	(SD_OPRREG),A
 	RET
 ;
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 ;
 ; CSIO WAIT FOR TRANSMIT READY (TX REGISTER EMPTY)
 ;
@@ -2037,24 +2132,38 @@ SD_WAITRX:
 ;
 #ENDIF
 ;
+#IF (SDMODE == SDMODE_FZ80)
+;
+; WAIT WHILE FPGA SPI INTERFACE IS BUSY SENDING OR RECEIVING
+;
+SD_WAITBSY:
+	PUSH	AF
+SD_WAITBSY1:
+	IN	A,(SD_SELSTAT)
+	BIT	7,A
+	JR	NZ,SD_WAITBSY1
+	POP	AF
+	RET
+#ENDIF
+;
 ; SEND ONE BYTE
 ;
 SD_PUT:
 ;
 #IF (SDMODE == SDMODE_MT)
 	OUT	(SD_WRTR),A
-#ELSE
+#ENDIF
 ;
-  #IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 	CALL	MIRROR			; MSB<-->LSB MIRROR BITS, RESULT IN C
 	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
 	OUT0	(SD_TRDR),C		; PUT BYTE IN BUFFER
 	IN0	A,(SD_CNTR)
 	SET	4,A			; SET TRANSMIT ENABLE
 	OUT0	(SD_CNTR),A
-  #ELSE
-
-    #IF (SDMODE == SDMODE_Z80R)
+#ENDIF
+;
+#IF (SDMODE == SDMODE_Z80R)
 	; USE C - THE CALLING CODE FOR COMMAND SEND FAILS TO SAVE HL/DE
 	; WHILST THE OTHER PATHS DO ?
         LD	C,A
@@ -2090,8 +2199,9 @@ SD_PUT:
 	RLA
 	OUT	(SD_IOREG),A
 	OUT	(SD_IOCLK),A
-    #ELSE
-
+#ENDIF
+;
+#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_N8) | (SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_UART) | (SDMODE == SDMODE_DSD) | (SDMODE == SDMODE_USR) | (SDMODE == SDMODE_PIO))
       #IF (SDMODE == SDMODE_UART)
 	XOR	$FF			; DI IS INVERTED ON UART
       #ENDIF
@@ -2110,8 +2220,15 @@ SD_PUT1:
 	DJNZ	SD_PUT1			; REPEAT FOR ALL 8 BITS
 	LD	A,(SD_OPRVAL)		; LOAD CURRENT OPR VALUE
 	OUT	(SD_OPRREG),A		; LEAVE WITH CLOCK LOW
-    #ENDIF
-  #ENDIF
+#ENDIF
+;
+#IF (SDMODE == SDMODE_FZ80)
+	;;;CALL	SD_WAITBSY		; WAIT FOR PENDING ACTIVITY
+	OUT	(SD_DATA),A		; POST THE VALUE
+	OUT	(SD_ACTION),A		; INITIATE THE WRITE
+	;;;CALL	PC_SPACE		; *DEBUG*
+	;;;CALL	PC_GT			; *DEBUG*
+	;;;CALL	PRTHEXBYTE		; *DEBUG*
 #ENDIF
 	RET				; DONE
 ;
@@ -2122,8 +2239,9 @@ SD_GET:
 ;
 #IF (SDMODE == SDMODE_MT)
 	IN	A,(SD_RDTR)
-#ELSE
-  #IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+#ENDIF
+;
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
 	IN0	A,(SD_CNTR)		; GET CSIO STATUS
 	SET	5,A			; START RECEIVER
@@ -2132,8 +2250,9 @@ SD_GET:
 	IN0	A,(SD_TRDR)		; GET RECEIVED BYTE
 	CALL	MIRROR			; MSB<-->LSB MIRROR BITS
 	LD	A,C			; KEEP RESULT
-  #ELSE
-    #IF (SDMODE == SDMODE_Z80R)
+#ENDIF
+;
+#IF (SDMODE == SDMODE_Z80R)
 	; MUST PRESERVE HL,DE
 	PUSH	DE
 	LD	A,1
@@ -2180,46 +2299,68 @@ SD_GET:
 	RL	E
 	LD	A,E
 	POP	DE
-    #ELSE
+#ENDIF
+;
+#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_N8) | (SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_UART) | (SDMODE == SDMODE_DSD) | (SDMODE == SDMODE_USR) | (SDMODE == SDMODE_PIO))
 	LD	B,8			; RECEIVE 8 BITS (LOOP 8 TIMES)
 	LD	A,(SD_OPRVAL)		; LOAD CURRENT OPR VALUE
 SD_GET1:
 	XOR	SD_CLK			; TOGGLE CLOCK
 	OUT	(SD_OPRREG),A		; UPDATE CLOCK
 	IN	A,(SD_INPREG)		; READ THE DATA WHILE CLOCK IS ACTIVE
-      #IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_PIO))
+  #IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_PPI) | (SDMODE == SDMODE_PIO))
 	RLA				; ROTATE INP:7 INTO CF
-      #ENDIF
-      #IF (SDMODE == SDMODE_N8)
+  #ENDIF
+  #IF (SDMODE == SDMODE_N8)
 	RLA				; ROTATE INP:6 INTO CF
 	RLA				; "
-      #ENDIF
-      #IF (SDMODE == SDMODE_UART)
+  #ENDIF
+  #IF (SDMODE == SDMODE_UART)
 	RLA				; ROTATE INP:5 INTO CF
 	RLA				; "
 	RLA				; "
-      #ENDIF
-      #IF (SDMODE == SDMODE_DSD)
+  #ENDIF
+  #IF (SDMODE == SDMODE_DSD)
 	RRA				; ROTATE INP:0 INTO CF
-      #ENDIF
+  #ENDIF
 	RL	C			; ROTATE CF INTO C:0
 	LD	A,(SD_OPRVAL)		; BACK TO INITIAL VALUES (TOGGLE CLOCK)
 	OUT	(SD_OPRREG),A		; DO IT
 	DJNZ	SD_GET1			; REPEAT FOR ALL 8 BITS
 	LD	A,C			; GET BYTE RECEIVED INTO A
-      #IF (SDMODE == SDMODE_UART)
+  #IF (SDMODE == SDMODE_UART)
 	XOR	$FF			; DO IS INVERTED ON UART
-      #ENDIF
-    #ENDIF
   #ENDIF
+#ENDIF
+;
+#IF (SDMODE == SDMODE_FZ80)
+	;;;CALL	SD_WAITBSY		; WAIT FOR PENDING ACTIVITY
+	IN	A,(SD_ACTION)		; INITIATE READ
+	;;;CALL	SD_WAITBSY		; WAIT FOR DONE
+	IN	A,(SD_DATA)		; GET THE VALUE
+#ENDIF
+	RET
+;
+; SET STANDARD SPEED (RESTORE SPI INTERFACE TO DEFAULTS)
+;
+SD_SPD_STD:
+;
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
+	; SET CSIO FOR DEFAULT OPERATION
+	PUSH	AF			; PRESERVE AF
+	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
+	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
+	LD	A,Z180_CNTR_DEF		; DIV 1280, 14KHZ @ 18MHZ CLK
+	OUT0	(SD_CNTR),A		; DO IT
+	POP	AF			; RESTORE AF
 #ENDIF
 	RET
 ;
-; SET CSIO TO DEFAULT SPEED
+; SET SLOW SPEED
 ;
-#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX))
+SD_SPD_SLOW:
 ;
-SD_CSIO_DEF:
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
 	; SET CSIO FOR DEFAULT OPERATION
 	PUSH	AF			; PRESERVE AF
 	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
@@ -2227,9 +2368,23 @@ SD_CSIO_DEF:
 	LD	A,Z180_CNTR_DEF		; DIV 1280, 14KHZ @ 18MHZ CLK
 	OUT0	(SD_CNTR),A		; DO IT
 	POP	AF			; RESTORE AF
+#ENDIF
 	RET
 ;
+; SET FAST SPEED
+;
+SD_SPD_FAST:
+;
+#IF ((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM))
+	; SET CSIO FOR HIGH SPEED OPERATION
+	PUSH	AF			; PRESERVE AF
+	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
+	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
+	XOR	A			; 0 IS HIGHEST CLOCK SPEED
+	OUT0	(SD_CNTR),A		; DO IT
+	POP	AF			; RESTORE AF
 #ENDIF
+	RET
 ;
 ;
 ;=============================================================================
@@ -2419,6 +2574,7 @@ SD_STR_TOK		.TEXT	" TOK=$"
 SD_STR_CSD		.TEXT	" CSD =$"
 SD_STR_CID		.TEXT	" CID =$"
 SD_STR_SCR		.TEXT	" SCR =$"
+SD_STR_OCR		.TEXT	" OCR =$"
 SD_STR_SDTYPE		.TEXT	" SD CARD TYPE ID=$"
 ;
 SD_STR_STOK		.TEXT	"OK$"
@@ -2470,7 +2626,7 @@ SD_DSKBUF	.DW	0		; ADR OF ACTIVE DISK BUFFER
 ; MSB<-->LSB MIRROR BITS IN A, RESULT IN C
 ;
 MIRROR:
-#IF (((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX)) & SDCSIOFAST)
+#IF (((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM)) & SDCSIOFAST)
 					; FASTEST BUT USES MOST CODE SPACE
 	LD	BC,MIRTAB		; 256 BYTE MIRROR TABLE
 	ADD	A,C			; ADD OFFSET
@@ -2503,7 +2659,7 @@ MIRROR2:
 ;
 ; LOOKUP TABLE TO MIRROR BITS IN A BYTE
 ;
-#IF (((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX)) & SDCSIOFAST)
+#IF (((SDMODE == SDMODE_CSIO) | (SDMODE == SDMODE_MK4) | (SDMODE == SDMODE_SC) | (SDMODE == SDMODE_EPITX) | (SDMODE == SDMODE_GM)) & SDCSIOFAST)
 
 MIRTAB	.DB 00H, 80H, 40H, 0C0H, 20H, 0A0H, 60H, 0E0H, 10H, 90H, 50H, 0D0H, 30H, 0B0H, 70H, 0F0H
 	.DB 08H, 88H, 48H, 0C8H, 28H, 0A8H, 68H, 0E8H, 18H, 98H, 58H, 0D8H, 38H, 0B8H, 78H, 0F8H
diff --git a/Source/HBIOS/sio.asm b/Source/HBIOS/sio.asm
index 0274a66e..c7e23e01 100644
--- a/Source/HBIOS/sio.asm
+++ b/Source/HBIOS/sio.asm
@@ -24,13 +24,13 @@ SIO_SIO		.EQU	1
 SIO_RTSON	.EQU	$EA
 SIO_RTSOFF	.EQU	$E8
 ;
-#IF (INTMODE == 0)
-SIO_WR1VAL	.EQU	$00		; WR1 VALUE FOR NO INTS
-#ELSE
+#IF ((SIOINTS) & (INTMODE > 0))
 SIO_WR1VAL	.EQU	$18		; WR1 VALUE FOR INT ON RECEIVED CHARS
+#ELSE
+SIO_WR1VAL	.EQU	$00		; WR1 VALUE FOR NO INTS
 #ENDIF
 ;
-#IF ((INTMODE == 2) | (INTMODE == 3))
+#IF ((SIOINTS) & (INTMODE >= 2))
 ;
 SIO0_IVT	.EQU	IVT(INT_SIO0)
 SIO1_IVT	.EQU	IVT(INT_SIO1)
@@ -146,7 +146,7 @@ SIO_PREINIT2:
 	ADD	IY,DE			; BUMP IY TO NEXT ENTRY
 	DJNZ	SIO_PREINIT0		; LOOP UNTIL DONE
 ;
-#IF (INTMODE >= 1)
+#IF ((SIOINTS) & (INTMODE > 0))
 	; SETUP INT VECTORS AS APPROPRIATE
 	LD	A,(SIO_DEV)		; GET DEVICE COUNT
 	OR	A			; SET FLAGS
@@ -223,7 +223,7 @@ SIO_INIT1:
 ;
 ; RECEIVE INTERRUPT HANDLER
 ;
-#IF (INTMODE > 0)
+#IF ((SIOINTS) & (INTMODE > 0))
 ;
 ; IM1 ENTRY POINT
 ;
@@ -354,17 +354,7 @@ SIO_FNTBL:
 ;
 ;
 ;
-#IF (INTMODE == 0)
-;
-SIO_IN:
-	CALL	SIO_IST			; CHAR WAITING?
-	JR	Z,SIO_IN		; LOOP IF NOT
-	LD	C,(IY+4)		; DATA PORT
-	IN	E,(C)			; GET CHAR
-	XOR	A			; SIGNAL SUCCESS
-	RET
-;
-#ELSE
+#IF ((SIOINTS) & (INTMODE > 0))
 ;
 SIO_IN:
 	CALL	SIO_IST			; SEE IF CHAR AVAILABLE
@@ -411,6 +401,17 @@ SIO_IN2:
 	HB_EI				; INTERRUPTS OK AGAIN
 	XOR	A			; SIGNAL SUCCESS
 	RET				; AND DONE
+;
+#ELSE
+;
+SIO_IN:
+	CALL	SIO_IST			; CHAR WAITING?
+	JR	Z,SIO_IN		; LOOP IF NOT
+	LD	C,(IY+4)		; DATA PORT
+	IN	E,(C)			; GET CHAR
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
 #ENDIF
 ;
 ;
@@ -425,7 +426,17 @@ SIO_OUT:
 ;
 ;
 ;
-#IF (INTMODE == 0)
+#IF ((SIOINTS) & (INTMODE > 0))
+;
+SIO_IST:
+	LD	L,(IY+7)		; GET ADDRESS
+	LD	H,(IY+8)		; ... OF RECEIVE BUFFER
+	LD	A,(HL)			; BUFFER UTILIZATION COUNT
+	OR	A			; SET FLAGS
+	JP	Z,CIO_IDLE		; NOT READY, RETURN VIA IDLE PROCESSING
+	RET
+;
+#ELSE
 ;
 SIO_IST:
 	LD	C,(IY+3)		; CMD PORT
@@ -438,16 +449,6 @@ SIO_IST:
 	INC	A			; ASCCUM := 1 TO SIGNAL 1 CHAR WAITING
 	RET				; DONE
 ;
-#ELSE
-;
-SIO_IST:
-	LD	L,(IY+7)		; GET ADDRESS
-	LD	H,(IY+8)		; ... OF RECEIVE BUFFER
-	LD	A,(HL)			; BUFFER UTILIZATION COUNT
-	OR	A			; SET FLAGS
-	JP	Z,CIO_IDLE		; NOT READY, RETURN VIA IDLE PROCESSING
-	RET
-;
 #ENDIF
 ;
 ;
@@ -853,7 +854,7 @@ SIO_INITGO:
 ;
 ; SET INTERRUPT VECTOR OFFSET WR2
 ;
-#IF ((INTMODE == 2) | (INTMODE == 3))
+#IF ((SIOINTS) & (INTMODE >= 2))
 	LD	A,(IY+2)		; CHIP / CHANNEL
 	SRL	A			; SHIFT AWAY CHANNEL BIT
 	LD	L,SIO0_VEC		; ASSUME CHIP 0
@@ -893,7 +894,7 @@ SIO_INITPRT:
 	LD	B,SIO_INITLEN		; COUNT OF BYTES TO WRITE
 	OTIR				; WRITE ALL VALUES
 ;
-#IF (INTMODE > 0)
+#IF ((SIOINTS) & (INTMODE > 0))
 ;
 	; RESET THE RECEIVE BUFFER
 	LD	E,(IY+7)
@@ -1108,17 +1109,7 @@ SIO_STR_SIO	.DB	"SIO$"
 SIO_DEV		.DB	0		; DEVICE NUM USED DURING INIT
 SIO_MAP		.DB	0		; CHIP PRESENCE BITMAP
 ;
-#IF (INTMODE == 0)
-;
-SIO0A_RCVBUF	.EQU	0
-SIO0B_RCVBUF	.EQU	0
-;
-  #IF (SIOCNT >= 2)
-SIO1A_RCVBUF	.EQU	0
-SIO1B_RCVBUF	.EQU	0
-  #ENDIF
-;
-#ELSE
+#IF ((SIOINTS) & (INTMODE > 0))
 ;
 ; SIO0 CHANNEL A RECEIVE BUFFER
 SIO0A_RCVBUF:
@@ -1152,6 +1143,16 @@ SIO1B_BUF	.FILL	SIO_BUFSZ,0	; RECEIVE RING BUFFER
 ;
   #ENDIF
 ;
+#ELSE
+;
+SIO0A_RCVBUF	.EQU	0
+SIO0B_RCVBUF	.EQU	0
+;
+  #IF (SIOCNT >= 2)
+SIO1A_RCVBUF	.EQU	0
+SIO1B_RCVBUF	.EQU	0
+  #ENDIF
+;
 #ENDIF
 ;
 ; SIO PORT TABLE
@@ -1191,9 +1192,9 @@ SIO0A_CFG:
 	DEVECHO	", IO="
 	DEVECHO	SIO0BASE
 	DEVECHO	", CHANNEL A"
-  #IF (INTMODE > 0)
+#IF ((SIOINTS) & (INTMODE > 0))
 		DEVECHO	", INTERRUPTS ENABLED"
-  #ENDIF
+#ENDIF
 		DEVECHO	"\n"
 ;
 SIO_CFGSIZ	.EQU	$ - SIO_CFG	; SIZE OF ONE CFG TABLE ENTRY
@@ -1231,9 +1232,9 @@ SIO0B_CFG:
 	DEVECHO	", IO="
 	DEVECHO	SIO0BASE
 	DEVECHO	", CHANNEL B"
-  #IF (INTMODE > 0)
+#IF ((SIOINTS) & (INTMODE > 0))
 		DEVECHO	", INTERRUPTS ENABLED"
-  #ENDIF
+#ENDIF
 		DEVECHO	"\n"
 ;
 #IF (SIOCNT >= 2)
@@ -1253,26 +1254,26 @@ SIO1A_CFG:
 	.DB	SIO1MODE		; MODE
 ;
 	DEVECHO	"SIO MODE="
-#IF (SIO1MODE == SIOMODE_STD)
+  #IF (SIO1MODE == SIOMODE_STD)
 	DEVECHO	"STD"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_RC)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_RC)
 	DEVECHO	"RC"
-#ENDIF	
-
-#IF (SIO1MODE == SIOMODE_SMB)
+  #ENDIF	
+;
+  #IF (SIO1MODE == SIOMODE_SMB)
 	DEVECHO	"SMB"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_ZP)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_ZP)
 	DEVECHO	"ZP"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_Z80R)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_Z80R)
 	DEVECHO	"Z80R"
-#ENDIF
+  #ENDIF
 	DEVECHO	", IO="
 	DEVECHO	SIO1BASE
 	DEVECHO	", CHANNEL A"
-  #IF (INTMODE > 0)
+  #IF ((SIOINTS) & (INTMODE > 0))
 		DEVECHO	", INTERRUPTS ENABLED"
   #ENDIF
 		DEVECHO	"\n"
@@ -1292,25 +1293,25 @@ SIO1B_CFG:
 	.DB	SIO1MODE		; MODE
 ;
 	DEVECHO	"SIO MODE="
-#IF (SIO1MODE == SIOMODE_STD)
+  #IF (SIO1MODE == SIOMODE_STD)
 	DEVECHO	"STD"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_RC)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_RC)
 	DEVECHO	"RC"
-#ENDIF	
-#IF (SIO1MODE == SIOMODE_SMB)
+  #ENDIF	
+  #IF (SIO1MODE == SIOMODE_SMB)
 	DEVECHO	"SMB"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_ZP)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_ZP)
 	DEVECHO	"ZP"
-#ENDIF
-#IF (SIO1MODE == SIOMODE_Z80R)
+  #ENDIF
+  #IF (SIO1MODE == SIOMODE_Z80R)
 	DEVECHO	"Z80R"
-#ENDIF
+  #ENDIF
 	DEVECHO	", IO="
 	DEVECHO	SIO1BASE
 	DEVECHO	", CHANNEL B"
-  #IF (INTMODE > 0)
+  #IF ((SIOINTS) & (INTMODE > 0))
 		DEVECHO	", INTERRUPTS ENABLED"
   #ENDIF
 		DEVECHO	"\n"
diff --git a/Source/HBIOS/sn76489.asm b/Source/HBIOS/sn76489.asm
index 6f31de33..c6e8c42c 100644
--- a/Source/HBIOS/sn76489.asm
+++ b/Source/HBIOS/sn76489.asm
@@ -49,10 +49,6 @@ SN7_IDAT		.EQU	0
 SN7_TONECNT		.EQU	3	; COUNT NUMBER OF TONE CHANNELS
 SN7_NOISECNT		.EQU	1	; COUNT NUMBER OF NOISE CHANNELS
 SN7_CHCNT		.EQU	SN7_TONECNT + SN7_NOISECNT
-CHANNEL_0_SILENT	.EQU	$9F
-CHANNEL_1_SILENT	.EQU	$BF
-CHANNEL_2_SILENT	.EQU	$DF
-CHANNEL_3_SILENT	.EQU	$FF
 ;
 #INCLUDE "audio.inc"
 ;
@@ -78,52 +74,71 @@ SN76489_INIT:
 	LD	A, SN76489_PORT_RIGHT
 	CALL	PRTHEXBYTE
 
-	CALL	SN7_VOLUME_OFF
+	CALL	SN7_RESET
 	XOR	A			; SIGNAL SUCCESS
 	RET
-
+;
 ;======================================================================
-; SN76489 DRIVER - SOUND ADAPTER (SND) FUNCTIONS
+;	INITIALIZE DEVICE
 ;======================================================================
 ;
-SN7_RESET:
-	AUDTRACE(SNT_INIT)
-	CALL	SN7_VOLUME_OFF
-	XOR	A			; SIGNAL SUCCESS
-	RET
-
-SN7_VOLUME_OFF:
-	AUDTRACE(SNT_VOLOFF)
-
-
+SN7_INIT:
+;
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)
 	OR	%00001000		; SBC-V2-004+ CHANGE
+	EZ80_IO
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 #ENDIF
-
-	LD	A, CHANNEL_0_SILENT
-	OUT	(SN76489_PORT_LEFT), A
-	OUT	(SN76489_PORT_RIGHT), A
-
-	LD	A, CHANNEL_1_SILENT
-	OUT	(SN76489_PORT_LEFT), A
-	OUT	(SN76489_PORT_RIGHT), A
-
-	LD	A, CHANNEL_2_SILENT
-	OUT	(SN76489_PORT_LEFT), A
-	OUT	(SN76489_PORT_RIGHT), A
-
-	LD	A, CHANNEL_3_SILENT
-	OUT	(SN76489_PORT_LEFT), A
-	OUT	(SN76489_PORT_RIGHT), A
-
+;
+	LD	HL,SN7_REG_INIT		; POINT TO REG INIT TBL
+	LD	B,SN7_REG_CNT		; BYTES IN TABLE
+SN7_INIT1
+	LD	A,(HL)
+	INC	HL			; BUMP FOR NEXT TIME
+	EZ80_IO
+	OUT	(SN76489_PORT_LEFT), A	; WRITE LEFT PORT
+	EZ80_IO
+	OUT	(SN76489_PORT_RIGHT), A	; WRITE RIGHT PORT
+	DJNZ	SN7_INIT1		; LOOP TILL DONE
+;
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)
 	AND	%11110111		; SBC-V2-004+ CHANGE TO
+	EZ80_IO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
-
+;
+	RET
+;
+SN7_REG_INIT:
+	.DB	$80,$00			; TONE 1 FREQ (2 BYTES)
+	.DB	$9F			; TONE 1 ATTENTUATION
+	.DB	$A0,$00			; TONE 2 FREQ (2 BYTES)
+	.DB	$BF			; TONE 2 ATTENTUATION
+	.DB	$C0,$00			; TONE 3 FREQ (2 BYTES)
+	.DB	$DF			; TONE 3 ATTENTUATION
+	.DB	$E0			; NOISE CONTROL
+	.DB	$FF			; NOISE ATTENTUATION
+SN7_REG_CNT	.EQU	$ - SN7_REG_INIT
+;
+;======================================================================
+; SN76489 DRIVER - SOUND ADAPTER (SND) FUNCTIONS
+;======================================================================
+;
+SN7_RESET:
+	AUDTRACE(SNT_INIT)
+;
+	CALL	SN7_INIT		; HARDWARE INIT
+;
+	; RESET DEFAULTS IN CASE OF AN IN-PLACE HBIOS RESTART
+	LD	HL,0
+	LD	(SN7_PENDING_PERIOD),HL
+	LD	(SN7_PENDING_DURATION),HL
+	XOR	A
+	LD	(SN7_PENDING_VOLUME),A
+;
+	XOR	A
 	RET
 
 ; BIT MAPPING
@@ -277,16 +292,19 @@ SN7_APPLY_VOL:				; APPLY VOLUME TO BOTH LEFT AND RIGHT CHANNELS
 	PUSH	AF
 	LD	A,(HB_RTCVAL)
 	OR	%00001000		; SBC-V2-004+ CHANGE
+	EZ80_IO
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 	POP	AF
 #ENDIF
-
+	EZ80_IO
 	OUT	(SN76489_PORT_LEFT), A
+	EZ80_IO
 	OUT	(SN76489_PORT_RIGHT), A
 
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)
 	AND	%11110111		; SBC-V2-004+ CHANGE TO
+	EZ80_IO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
 
@@ -322,16 +340,19 @@ SN7_APPLY_PRD:
 	PUSH	AF
 	LD	A,(HB_RTCVAL)
 	OR	%00001000		; SBC-V2-004+ CHANGE
+	EZ80_IO
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 	POP	AF
 #ENDIF
-
+	EZ80_IO
 	OUT	(SN76489_PORT_LEFT), A
+	EZ80_IO
 	OUT	(SN76489_PORT_RIGHT), A
 
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)
 	AND	%11110111		; SBC-V2-004+ CHANGE TO
+	EZ80_IO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
 
@@ -359,16 +380,19 @@ SN7_APPLY_PRD:
 	PUSH	AF
 	LD	A,(HB_RTCVAL)
 	OR	%00001000		; SBC-V2-004+ CHANGE
+	EZ80_IO
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 	POP	AF
 #ENDIF
-
+	EZ80_IO
 	OUT	(SN76489_PORT_LEFT), A
+	EZ80_IO
 	OUT	(SN76489_PORT_RIGHT), A
 
 #IFDEF SBCV2004
 	LD	A,(HB_RTCVAL)
 	AND	%11110111		; SBC-V2-004+ CHANGE TO
+	EZ80_IO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
 
@@ -391,6 +415,9 @@ SN7_DEVICE:
 	XOR	A
 	RET
 
+SN7_BEEP:
+	JP	SND_BEEP		; DEFER TO GENERIC CODE IN HBIOS
+
 SN7_FNTBL:
 	.DW	SN7_RESET
 	.DW	SN7_VOLUME
@@ -400,18 +427,16 @@ SN7_FNTBL:
 	.DW	SN7_QUERY
 	.DW	SN7_DURATION
 	.DW	SN7_DEVICE
+	.DW	SN7_BEEP
 ;
 #IF (($ - SN7_FNTBL) != (SND_FNCNT * 2))
 	.ECHO	"*** INVALID SND FUNCTION TABLE ***\n"
 	!!!!!
 #ENDIF
 
-SN7_PENDING_PERIOD
-	.DW	0		; PENDING PERIOD (10 BITS)
-SN7_PENDING_VOLUME
-	.DB	0		; PENDING VOL (8 BITS -> DOWNCONVERTED TO 4 BITS AND INVERTED)
-SN7_PENDING_DURATION	
-	.DW	0		; PENDING DURATION (16 BITS)
+SN7_PENDING_PERIOD	.DW	0	; PENDING PERIOD (10 BITS)
+SN7_PENDING_VOLUME	.DB	0	; PENDING VOL (8 BITS -> DOWNCONVERTED TO 4 BITS AND INVERTED)
+SN7_PENDING_DURATION	.DW	0	; PENDING DURATION (16 BITS)
 
 STR_MESSAGELT	.DB	"\r\nSN76489: LEFT IO=0x$"
 STR_MESSAGERT	.DB	", RIGHT IO=0x$"
diff --git a/Source/HBIOS/spk.asm b/Source/HBIOS/spk.asm
index 302a7990..3ceb148c 100644
--- a/Source/HBIOS/spk.asm
+++ b/Source/HBIOS/spk.asm
@@ -13,14 +13,15 @@
 ;	DRIVER FUNCTION TABLE AND INSTANCE DATA
 ;
 SP_FNTBL:
-	.DW	SP_STUB			; SP_RESET
-	.DW	SP_STUB			; SP_VOLUME
+	.DW	SP_RESET
+	.DW	SP_VOLUME
 	.DW	SP_PERIOD
 	.DW	SP_NOTE
 	.DW	SP_PLAY
 	.DW	SP_QUERY
 	.DW	SP_DURATION
 	.DW	SP_DEVICE
+	.DW	SP_BEEP
 ;
 #IF (($ - SP_FNTBL) != (SND_FNCNT * 2))
 	.ECHO	"*** INVALID SND FUNCTION TABLE ***\n"
@@ -37,9 +38,10 @@ SP_RTCIOMSK	.EQU	00000100B
 ; FOR OTHER DRIVERS, THE PERIOD VALUE FOR THE TONE IS STORED AT PENDING_PERIOD
 ; FOR THE SPK DRIVER THE ADDRESS IN THE TONE TABLE IS STORED IN PENDING_PERIOD
 ;
-SP_PENDING_PERIOD	.DW	SP_NOTE_C8	; PENDING PERIOD (16 BITS)
-SP_PENDING_VOLUME	.DB	$FF		; PENDING VOL (8 BITS)
+SP_PENDING_PERIOD	.DW	0		; PENDING PERIOD (16 BITS)
+SP_PENDING_VOLUME	.DB	0		; PENDING VOL (8 BITS)
 SP_PENDING_DURATION	.DW	0		; PENDING DURATION (16 BITS)
+SP_TBLRDY		.DB	0		; IF != 0, NOTE TABLE IS READY
 ;
 	DEVECHO	"SPK: IO="
 	DEVECHO	RTCIO
@@ -59,8 +61,10 @@ SP_INIT:
 	PRTS("SPK: IO=0x$")
 	LD	A,RTCIO
 	CALL	PRTHEXBYTE
+;
 	CALL	SP_SETTBL		; SETUP TONE TABLE
-	CALL	SP_PLAY			; PLAY DEFAULT NOTE
+	CALL	SP_RESET		; RESET PARAMETERS
+;
 	XOR	A
 	RET
 ;
@@ -68,17 +72,24 @@ SP_INIT:
 ;	SOUND DRIVER FUNCTION - RESET
 ;======================================================================
 ;
-;SP_RESET:
-;	XOR	A			; SUCCESSFULL RESET
-;	RET
+SP_RESET:
+	; RESET DEFAULTS IN CASE OF AN IN-PLACE HBIOS RESTART
+	LD	HL,0
+	LD	(SP_PENDING_PERIOD),HL	; SET TONE PERIOD TO ZERO
+	LD	(SP_PENDING_DURATION),HL; SET DURATION TO ZERO
+	XOR	A			; SIGNAL SUCCESS
+	LD	(SP_PENDING_VOLUME),A	; SET VOLUME TO ZERO
+;
+	XOR	A			; SUCCESSFULL RESET
+	RET
 ;
 ;======================================================================
 ;	SOUND DRIVER FUNCTION - VOLUME
 ;======================================================================
 ;
-;SP_VOLUME:
-;	XOR	A			; SIGNAL SUCCESS
-;	RET
+SP_VOLUME:
+	XOR	A			; SIGNAL SUCCESS
+	RET
 ;
 ;======================================================================
 ;	SOUND DRIVER FUNCTION - PERIOD
@@ -86,7 +97,6 @@ SP_INIT:
 ;
 SP_PERIOD:
 	LD	(SP_PENDING_PERIOD), HL	; SAVE AND RETURN SUCCESSFUL
-SP_STUB:
 	XOR	A
 	RET
 ;
@@ -164,6 +174,13 @@ SP_QUERY_DEV:
 ;======================================================================
 ;
 SP_SETTBL:
+	; IN CASE OF HBIOS RESTART IN PLACE, WE CHECK TO SEE IF THE
+	; NOT TABLE IS ALREADY INITIALIZED (READY).  IF SO, WE DON'T
+	; WANT TO DO IT AGAIN.
+	LD	A,(SP_TBLRDY)
+	OR	A
+	RET	NZ
+;
 	LD	BC,(CB_CPUMHZ)		; GET MHZ CPU SPEED (IN C).
 ;	 
 SP_SETTBL3:
@@ -202,6 +219,10 @@ SP_SETBL4:
 	INC	HL			; TO NEXT
 ;
 	DJNZ	SP_SETTBL2		; NEXT NOTE
+;
+	OR	$FF			; SIGNAL TABLE READY
+	LD	(SP_TBLRDY),A		; SAVE IT
+;
 	RET
 ;
 ;======================================================================
@@ -340,16 +361,40 @@ SP_DEVICE:
 	RET
 ;
 ;======================================================================
+;	SOUND DRIVER FUNCTION - BEEP
+;======================================================================
+;
+SP_BEEP:
+	LD	HL,SP_NOTE_B5			; B5 (CLOSE TO 1 KHZ)
+	LD	(SP_PENDING_PERIOD),HL
+	;LD	A,$FF
+	;LD	(SP_PENDING_VOLUME),A
+	;XOR	A
+	;LD	(SP_PENDING_DURATION),A
+;
+	CALL	SP_PLAY			; PLAY DEFAULT NOTE
+	CALL	SP_RESET		; RESET DRIVER
+;
+	XOR	A
+	RET
+;
+;======================================================================
 ;
 ;	STANDARD ONE SECOND TONE TABLES AT 1MHZ.
 ;	FOR SP_BEEPER ROUTINE, FIRST WORD LOADED INTO DE, SECOND INTO HL
+;	THE PARAMETER TO SP_TONESET IS (FREQ * 100)
+;	DE: FREQUENCY IN HZ
+;	HL: T-STATES PER HALF-CYCL E / 4 AT 1 MHZ CPU SPEED
+;	    EX. MIDDLE C IS 261.63 HZ, 523.26 HALF CYCLES PER SECOND
+;               1,000,000 / 523.26 / 4 = 477
+;		OR ALTERNATIVELY 12,500,000 / 26163 = 477
 ;
 ;======================================================================
 ;
 #DEFINE	SP_TONESET(SP_FREQ) .DW SP_FREQ/100, 12500000/SP_FREQ
 ;
 SP_TUNTBL:
-	SP_TONESET(1635)		; C0
+	SP_TONESET(1635)		; C0		; DE=16, HL=7645
 	SP_TONESET(1732)		;  C
 	SP_TONESET(1835)		; D0
 	SP_TONESET(1945)		;  D
@@ -397,7 +442,7 @@ SP_TUNTBL:
 	SP_TONESET(22000)		; A3
 	SP_TONESET(23308)		;  A
 	SP_TONESET(24694)		; B3
-	SP_TONESET(26163)		; C4
+	SP_TONESET(26163)		; C4		; DE=261, HL=477
 	SP_TONESET(27718)		;  C
 	SP_TONESET(29366)		; D4
 	SP_TONESET(31113)		;  D
@@ -420,6 +465,7 @@ SP_TUNTBL:
 	SP_TONESET(83061)		;  G
 	SP_TONESET(88000)		; A5
 	SP_TONESET(93233)		;  A
+SP_NOTE_B5:
 	SP_TONESET(98777)		; B5
 	SP_TONESET(104650)		; C6
 	SP_TONESET(110873)		;  C
@@ -445,7 +491,6 @@ SP_TUNTBL:
 	SP_TONESET(352000)		; A7
 	SP_TONESET(372931)		;  A
 	SP_TONESET(395107)		; B7
-SP_NOTE_C8:
 	SP_TONESET(418601)		; C8
 	SP_TONESET(443492)		;  C
 	SP_TONESET(469863)		; D8
@@ -457,7 +502,7 @@ SP_NOTE_C8:
 	SP_TONESET(664488)		;  G
 	SP_TONESET(704000)		; A8
 	SP_TONESET(745862)		;  A
-	SP_TONESET(790213)		; B8 
+	SP_TONESET(790213)		; B8		; DE=7902, HL=15
 ;
 SP_NOTCNT	.EQU	($-SP_TUNTBL) / 4
 ;
diff --git a/Source/HBIOS/sser.asm b/Source/HBIOS/sser.asm
new file mode 100644
index 00000000..726b83e7
--- /dev/null
+++ b/Source/HBIOS/sser.asm
@@ -0,0 +1,116 @@
+;
+;==================================================================================================
+; SIMPLE SERIAL DRIVER
+;==================================================================================================
+;
+; TODO:
+;
+		DEVECHO	"SSER: IO="
+		DEVECHO	SSERSTATUS
+		DEVECHO	"\n"
+;
+;
+;
+SSER_PREINIT:
+;
+; ADD OURSELVES TO CIO DISPATCH TABLE
+;
+	LD	D,0			; PHYSICAL UNIT IS ZERO
+	LD	E,CIODEV_SSER		; DEVICE TYPE
+	LD	BC,SSER_FNTBL		; BC := FUNCTION TABLE ADDRESS
+	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
+;
+	XOR	A
+	RET
+;
+;
+;
+SSER_INIT:
+	CALL	NEWLINE
+	PRTS("SSER:$")
+	PRTS(" IO=0x$")			; FORMATTING
+	LD	A,SSERSTATUS
+	CALL	PRTHEXBYTE
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+; DRIVER FUNCTION TABLE
+;
+SSER_FNTBL:
+	.DW	SSER_IN
+	.DW	SSER_OUT
+	.DW	SSER_IST
+	.DW	SSER_OST
+	.DW	SSER_INITDEV
+	.DW	SSER_QUERY
+	.DW	SSER_DEVICE
+#IF (($ - SSER_FNTBL) != (CIO_FNCNT * 2))
+	.ECHO	"*** INVALID SSER FUNCTION TABLE ***\n"
+#ENDIF
+;
+;
+;
+SSER_IN:
+	CALL	SSER_IST		; CHECK FOR CHAR PENDING
+	JR	Z,SSER_IN		; WAIT FOR IT IF NECESSARY
+	IN	A,(SSERDATA)		; READ THE CHAR
+	LD	E,A
+	RET
+;
+;
+;
+SSER_IST:
+	IN	A,(SSERSTATUS)		; READ LINE STATUS REGISTER
+#IF (SSERIINV)
+	CPL
+#ENDIF
+	AND	SSERIRDY		; ISOLATE DATA READY
+	JP	Z,CIO_IDLE		; RETURN VIA IDLE PROCESSING
+	OR	$FF			; SET A=$FF TO SIGNAL READY
+	RET				; RETURN
+;
+;
+;
+SSER_OUT:
+	CALL	SSER_OST		; CHECK FOR OUTPUT READY
+	JR	Z,SSER_OUT		; WAIT IF NECESSARY
+	LD	A,E			; RECOVER THE CHAR TO WRITE
+	OUT	(SSERDATA),A		; WRITE THE CHAR
+	RET
+;
+;
+;
+SSER_OST:
+	IN	A,(SSERSTATUS)		; READ LINE STATUS REGISTER
+#IF (SSEROINV)
+	CPL
+#ENDIF
+	AND	SSERORDY 		; ISOLATE OUTPUT RDY
+	JP	Z,CIO_IDLE		; RETURN VIA IDLE PROCESSING
+	OR	$FF			; SET A=$FF TO SIGNAL READY
+	RET				; RETURN
+;
+;
+;
+SSER_INITDEV:
+	SYSCHKERR(ERR_NOTIMPL)
+	RET
+;
+;
+;
+SSER_QUERY:
+	LD	DE,SSERCFG
+	XOR	A
+	RET
+;
+;
+;
+SSER_DEVICE:
+	LD	D,CIODEV_SSER		; D := DEVICE TYPE
+	LD	E,0			; E := DEVICE NUM, ALWAYS 0
+	LD	C,$00			; C := DEVICE TYPE, 0x00 IS RS-232
+	LD	H,0			; H := 0, DRIVER HAS NO MODES
+	LD	L,SSERSTATUS		; L := BASE I/O ADDRESS
+	XOR	A			; SIGNAL SUCCESS
+	RET
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index 6ee025ce..a582f19c 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -21,9 +21,12 @@
 ; 17. DUO	Andrew Lynch's Duodyne Computer
 ; 18. HEATH	Les Bird's Heath Z80 Board
 ; 19. EPITX	Alan Cox' Mini-ITX System
-; 20. MON	Jacques Pelletier's Monsputer
-; 21. STDZ180	Genesis Z180 System
+; 20. MON	Jacques Pelletier's Monsputer
+; 21. GMZ180	Doug Jacksons' Genesis Z180 System
 ; 22. NABU	NABU w/ Les Bird's RomWBW Option Board
+; 23. FZ80	S100 Computers FPGA Z80
+; 24. RCZ80	RCBus eZ80
+;
 ;
 ; INCLUDE BUILD VERSION
 ;
@@ -63,6 +66,7 @@ CPU_NONE	.EQU	0		; NO CPU TYPE DEFINED
 CPU_Z80		.EQU	1		; Z80 FAMILY
 CPU_Z180	.EQU	2		; Z180 FAMILY
 CPU_Z280	.EQU	3		; Z280 FAMILY
+CPU_EZ80	.EQU	4		; eZ280 FAMILY
 ;
 ; BIOS MODE
 ;
@@ -70,6 +74,12 @@ BIOS_NONE	.EQU	0		; NO BIOS TYPE DEFINED
 BIOS_WBW	.EQU	1		; ROMWBW HBIOS
 BIOS_UNA	.EQU	2		; UNA UBIOS
 ;
+; HBIOS BOOT MODES
+;
+BM_ROMBOOT	.EQU	1		; ROM BOOT
+BM_APPBOOT	.EQU	2		; APPLICATION BOOT
+BM_IMGBOOT	.EQU	3		; IMAGE BOOT (DEPRECATED)
+;
 ; MEMORY MANAGERS
 ;
 MM_NONE		.EQU	0
@@ -162,6 +172,21 @@ LEDMODE_NABU	.EQU	4
 DSKYMODE_NONE	.EQU	0
 DSKYMODE_V1	.EQU	1
 DSKYMODE_NG	.EQU	2
+DSKYMODE_GM7303	.EQU	3
+;
+; DSKY MESSAGE IDS
+;
+DSKY_MSG_LDR_SEL	.EQU	0
+DSKY_MSG_LDR_BOOT	.EQU	1
+DSKY_MSG_LDR_LOAD	.EQU	2
+DSKY_MSG_LDR_GO		.EQU	3
+DSKY_MSG_MON_RDY	.EQU	4
+DSKY_MSG_MON_BOOT	.EQU	5
+;
+; DSKY EVENT IDS
+;
+DSKY_EVT_CPUSPD		.EQU	0
+DSKY_EVT_DSKACT		.EQU	1
 ;
 ; FD MODE SELECTIONS
 ;
@@ -186,6 +211,7 @@ IDEMODE_DIO	.EQU	1		; DISKIO V1
 IDEMODE_DIDE	.EQU	2		; DUAL IDE
 IDEMODE_MK4	.EQU	3		; MARK IV ONBOARD IDE (8 BIT ONLY)
 IDEMODE_RC	.EQU	4		; RCBUS CF MODULE (8 BIT ONLY)
+IDEMODE_GIDE	.EQU	5		; GENESIS MODULES STD BUS IDE CONTROLLER
 ;
 ; PPIDE MODE SELECTIONS
 ;
@@ -214,6 +240,8 @@ SDMODE_USR	.EQU	10		; USER DEFINED (in sd.asm) (NOT COMPLETE)
 SDMODE_PIO	.EQU	11		; Z80 PIO bitbang
 SDMODE_Z80R	.EQU	12		; Z80 Retro
 SDMODE_EPITX	.EQU	13		; Mini ITX Z180
+SDMODE_FZ80	.EQU	14		; S100 FPGA Z80
+SDMODE_GM	.EQU	15		; Genesis SD Driver
 ;
 ; AY SOUND CHIP MODE SELECTIONS
 ;
@@ -235,19 +263,24 @@ SNMODE_RC	.EQU	1		; RCBUS SOUND MODULE
 SNMODE_VGM	.EQU	2		; VGM ECB BOARD
 SNMODE_DUO	.EQU	3		; DUODYNE MEDIA-IO BOARD
 ;
+; SN SOUND MODULE CHANNEL SELECTION
+;
+SNCHAN_BOTH	.EQU	0		; BOTH LEFT & RIGHT CHANNELS GET SAME OUTPUT
+SNCHAN_LEFT	.EQU	1		; LEFT CHANNEL ONLY
+SNCHAN_RIGHT	.EQU	2		; RIGHT CHANNEL ONLY
+;
 ; TMS VIDEO MODE SELECTIONS
 ;
 TMSMODE_NONE	.EQU	0
 TMSMODE_SCG	.EQU	1		; SCG ECB BOARD
 TMSMODE_N8	.EQU	2		; N8 BUILT-IN VIDEO
-TMSMODE_MSX	.EQU	3		; MSX PORT MAPPING
-TMSMODE_MSX9958	.EQU	4		; MSX PORTS, V9958 CHIP
-TMSMODE_MSXKBD	.EQU	5		; MSX PORTS + PS2 KEYBOARD
+TMSMODE_MSX	.EQU	3		; STD MSX PORTS
+TMSMODE_MSXKBD	.EQU	4		; STD MSX PORTS + PS2 KEYBOARD
+TMSMODE_MSXMKY	.EQU	5		; STD MSX PORTS + MSX KEYBAORD
 TMSMODE_MBC	.EQU	6		; MBC V9938/58 VIDEO BOARD
 TMSMODE_COLECO	.EQU	7		; COLECOVISION PORT MAPPING
 TMSMODE_DUO	.EQU	8		; DUODYNE PORT MAPPING
-TMSMODE_NABU40	.EQU	9		; NABU V9918 + NABU KBD
-TMSMODE_NABU80	.EQU	10		; NABU V9958 + NABU KBD
+TMSMODE_NABU	.EQU	9		; NABU
 ;
 ; CVDU VIDEO MODE SELECTIONS
 ;
@@ -272,6 +305,7 @@ GDCMODE_RPH	.EQU	2		; RPH GDC
 LPTMODE_NONE	.EQU	0		; NONE
 LPTMODE_SPP	.EQU	1		; IBM PC STANDARD PAR PORT (SPP)
 LPTMODE_MG014	.EQU	2		; RCBUS MG014 STYLE INTERFACE
+LPTMODE_S100	.EQU	3		; S100 Z80 FPGA BUILT-IN PRINTER PORT
 ;
 ; PPA DRIVER MODE SELECTIONS
 ;
@@ -313,6 +347,7 @@ DMAMODE_VDG	.EQU	7		; VELESOFT DATAGEAR
 KBDMODE_NONE	.EQU	0
 KBDMODE_PS2	.EQU	1		; PS/2 KEYBOARD CONTROLLER
 KBDMODE_VRC	.EQU	2		; VGARC KEYBOARD CONTROLLER
+KBDMODE_FV	.EQU	3		; FPGA VGA KEYBOARD CONTROLLER
 ;
 ; SERIAL DEVICE CONFIGURATION CONSTANTS
 ;
@@ -482,7 +517,9 @@ TERMENABLE	.EQU	FALSE		; TERM PSEUDO DEVICE, WILL AUTO-ENABLE IF A VDA IS ENABLE
 ;
 KBDENABLE	.EQU	FALSE		; PS/2 KEYBOARD DRIVER
 PPKENABLE	.EQU	FALSE		; PPK KEYBOARD DRIVER
+MKYENABLE	.EQU	FALSE		; MSX KEYBOARD DRIVER
 NABUKBENABLE	.EQU	FALSE		; NABU KEYBOARD DRIVER
+FVKBDENABLE	.EQU	FALSE		; FPGA KEYBOARD DRIVER
 ;
 ; VIDEO MODES
 ;
@@ -535,6 +572,12 @@ SCSI_CMD_RDCAP		.EQU	$25
 SCSI_CMD_READ10		.EQU	$28
 SCSI_CMD_WRITE10	.EQU	$2A
 ;
+; EZ80 BUS MODES
+;
+EZ80WSMD_CALC	.EQU	0
+EZ80WSMD_CYCLES	.EQU	1
+EZ80WSMD_WAIT	.EQU	2
+;
 #INCLUDE "build.inc"		; INCLUDE USER CONFIG, ADD VARIANT, TIMESTAMP, & ROMSIZE
 ;
 ; INCLUDE Z180 REGISTER DEFINITIONS
@@ -596,6 +639,7 @@ TM_TMS	.EQU	2
 TM_SIMH	.EQU	3
 TM_Z180	.EQU	4
 TM_Z280	.EQU	5
+TM_EZ80	.EQU	6
 ;
 	SYSECHO "SYSTEM TIMER:"
 SYSTIM	.EQU	TM_NONE
@@ -634,6 +678,13 @@ SYSTIM	.SET	TM_Z280
 	SYSECHO	" Z280"
     #ENDIF
   #ENDIF
+;
+  #IF (CPUFAM == CPU_EZ80)
+    #IF (EZ80TIMER == EZ80TMR_INT)
+SYSTIM	.SET	TM_EZ80
+	SYSECHO	" EZ80"
+    #ENDIF
+  #ENDIF
 ;
   #IF SYSTIM == TM_NONE
 	SYSECHO " NONE"
@@ -856,7 +907,7 @@ APP_BNKS	.SET	0
 ;;;BID_ROMDN	.EQU	BID_ROMD0 + ROMD_BNKS - 1	; LAST ROM DRIVE BANK
 ;;;BID_APPN	.EQU	BID_APP0 + APP_BNKS - 1		; LAST APP BANK
 ;
-#IF TRUE
+#IFDEF SYSINFO
 	.ECHO "------------- CAPACITY -----------------\n"
 	.ECHO "ROMBANKS:  " \ .ECHO ROMBANKS  \ .ECHO "\n"
 	.ECHO "RAMBANKS:  " \ .ECHO RAMBANKS  \ .ECHO "\n"
@@ -887,187 +938,118 @@ APP_BNKS	.SET	0
 	.ECHO "----------------------------------------\n"
 #ENDIF
 ;
-; MEMORY LAYOUT
+; ---------------------------
+; Memory and ROM Bank Layouts
+; ---------------------------
+;
+#INCLUDE "layout.inc"
+;
 ;
-SYS_SIZ		.EQU	$3000			; COMBINED SIZE OF SYSTEM AREA (OS + HBIOS PROXY)
-HBBUF_SIZ	.EQU	1024			; INVARIANT HBIOS PHYSICAL DISK BUFFER, 1K
-HBX_SIZ		.EQU	$200			; HBIOS PROXY SIZE (SUBJECT TO CHANGE)
-CPM_SIZ		.EQU	SYS_SIZ - HBX_SIZ	; NET SIZE OF ALL OS COMPONENTS (EXCLUDING HBIOS PROXY)
-CCP_SIZ		.EQU	$800			; INVARIANT SIZE OF CCP
-BDOS_SIZ	.EQU	$E00			; INVARIANT SIZE OF BDOS
-CBIOS_SIZ	.EQU	CPM_SIZ - CCP_SIZ - BDOS_SIZ	; CBIOS IS THE REMAINDER
-
-MEMTOP		.EQU	$10000			; INVARIANT TOP OF Z80 ADDRESSABLE MEMORY
-BNKTOP		.EQU	$8000			; BANK MEMORY BARRIER
-
-HBX_IMG		.EQU	$200			; LOC OF HBX IMAGE IN HBIOS IMAGE BANK
-
-HBBUF_END	.EQU	BNKTOP			; END OF PHYSICAL DISK BUFFER IN HBIOS
-HBBUF_LOC	.EQU	HBBUF_END - HBBUF_SIZ	; START OF PHYSICAL DISK BUFFER
-HBX_END		.EQU	MEMTOP			; END OF HBIOS PROXY
-HBX_LOC		.EQU	HBX_END - HBX_SIZ	; START OF HBIOS PROXY
-CPM_END		.EQU	HBX_LOC			; END OF CPM COMPONENTS (INCLUDING CBIOS)
-CPM_LOC		.EQU	CPM_END - CPM_SIZ	; START OF CPM COMPONENTS
-CBIOS_END	.EQU	HBX_LOC			; END OF CBIOS
-CBIOS_LOC	.EQU	CBIOS_END - CBIOS_SIZ	; START OF CBIOS
-
-CPM_ENT		.EQU	CBIOS_LOC		; CPM ENTRY POINT (IN CBIOS)
-
-CPM_IMGSIZ	.EQU	$3000
-
-; ROM BANK 1
-
-LDR_LOC		.EQU	$0000
-LDR_SIZ		.EQU	$1000
-LDR_END		.EQU	LDR_LOC +LDR_SIZ
-LDR_IMGLOC	.EQU	$0000
-
-MON_LOC		.EQU	$EE00			; LOCATION OF MONITOR FOR RUNNING SYSTEM
-MON_SIZ		.EQU	$1000			; SIZE OF MONITOR BINARY IMAGE
-MON_END		.EQU	MON_LOC + MON_SIZ	; END OF MONITOR
-MON_IMGLOC	.EQU	LDR_IMGLOC + LDR_SIZ
-
-ZSYS_IMGLOC	.EQU	MON_IMGLOC + MON_SIZ
-
-CPM_IMGLOC	.EQU	ZSYS_IMGLOC + CPM_IMGSIZ
-
-; ROM BANK 2
-
-FTH_LOC		.EQU	$0200			; CAMEL FORTH
-FTH_SIZ		.EQU	$1700
-FTH_END		.EQU	FTH_LOC + FTH_SIZ
-FTH_IMGLOC	.EQU	$0000
-
-BAS_LOC		.EQU	$0200			; NASCOM BASIC
-BAS_SIZ		.EQU	$2000
-BAS_END		.EQU	BAS_LOC + BAS_SIZ
-BAS_IMGLOC	.EQU	FTH_IMGLOC + FTH_SIZ
-
-TBC_LOC		.EQU	$0A00			; TASTYBASIC
-TBC_SIZ		.EQU	$0A00
-TBC_END		.EQU	TBC_LOC + TBC_SIZ
-TBC_IMGLOC	.EQU	BAS_IMGLOC + BAS_SIZ
-
-GAM_LOC		.EQU	$0200			; GAME 2048
-GAM_SIZ		.EQU	$0900
-GAM_END		.EQU	GAM_LOC + GAM_SIZ
-GAM_IMGLOC	.EQU	TBC_IMGLOC + TBC_SIZ
-
-EGG_LOC		.EQU	$F000			; EASTER EGG
-EGG_SIZ		.EQU	$0200
-EGG_END		.EQU	EGG_LOC + EGG_SIZ
-EGG_IMGLOC	.EQU	GAM_IMGLOC + GAM_SIZ
-
-NET_LOC		.EQU	$0100			; NETWORK BOOT
-NET_SIZ		.EQU	$1000
-NET_END		.EQU	NET_LOC + NET_SIZ
-NET_IMGLOC	.EQU	EGG_IMGLOC + EGG_SIZ
-
-UPD_LOC		.EQU	$0200			; ROM UPDATER
-UPD_SIZ		.EQU	$0D00
-UPD_END		.EQU	UPD_LOC + UPD_SIZ
-UPD_IMGLOC	.EQU	NET_IMGLOC + NET_SIZ
-
-USR_LOC		.EQU	$0200			; USER
-USR_SIZ		.EQU	BNKTOP - UPD_IMGLOC - UPD_SIZ
-USR_END		.EQU	USR_LOC + USR_SIZ
-USR_IMGLOC	.EQU	UPD_IMGLOC + UPD_SIZ
-
 MON_DSKY	.EQU	MON_LOC + (0 * 3)	; MONITOR ENTRY (DSKY)
 MON_SERIAL	.EQU	MON_LOC + (1 * 3)	; MONITOR ENTRY (SERIAL PORT)
 ;
 ; INTERRUPT MODE 2 SLOT ASSIGNMENTS
 ;
-#IF (((CPUFAM == CPU_Z180) | (CPUFAM == CPU_Z280)) & (INTMODE > 0))
-
-; NOTE THAT Z180 PROCESSES ALL INTERNAL INTERRUPTS JUST LIKE
-; IM2 EVEN WHEN CHIP IS IN IM1 MODE.  SO WE INCLUDE THE IM2
-; INTERRUPT ASSIGNMENTS FOR IM1 BELOW.
-
-; Z180-BASED SYSTEMS
-INT_INT1	.EQU	0	; Z180 INT 1
-INT_INT2	.EQU	1	; Z180 INT 2
-INT_TIM0	.EQU	2	; Z180 TIMER 0
-INT_TIM1	.EQU	3	; Z180 TIMER 1
-INT_DMA0	.EQU	4	; Z180 DMA 0
-INT_DMA1	.EQU	5	; Z180 DMA 1
-INT_CSIO	.EQU	6	; Z180 CSIO
-INT_SER0	.EQU	7	; Z180 SERIAL 0
-INT_SER1	.EQU	8	; Z180 SERIAL 0
-INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
-INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B
-INT_PIO1A	.EQU	11	; ZILOG PIO 1, CHANNEL A
-INT_PIO1B	.EQU	12	; ZILOG PIO 1, CHANNEL B
-INT_SIO0	.EQU	13	; ZILOG SIO 0, CHANNEL A & B
-INT_SIO1	.EQU	14	; ZILOG SIO 1, CHANNEL A & B
-
-#ENDIF
-
 #IF ((CPUFAM == CPU_Z80) & (INTMODE == 2))
 
   #IF (PLATFORM == PLT_MBC)
 ;
 ; MBC Z80 INTERRUPTS
 ;
-;INT_CTC0A	.EQU	0	; ZILOG CTC 0, CHANNEL A
-;INT_CTC0B	.EQU	1	; ZILOG CTC 0, CHANNEL B
-;INT_CTC0C	.EQU	2	; ZILOG CTC 0, CHANNEL C
-;INT_CTC0D	.EQU	3	; ZILOG CTC 0, CHANNEL D
 INT_UART0	.EQU	4	; UART 0
 INT_UART1	.EQU	5	; UART 1
-INT_INT6	.EQU	6	;
-INT_INT7	.EQU	7	;
 INT_SIO0	.EQU	8	; ZILOG SIO 0, CHANNEL A & B
 INT_SIO1	.EQU	9	; ZILOG SIO 1, CHANNEL A & B
+INT_PIO0A	.EQU	10	; ZILOG PIO 0, CHANNEL A
+INT_PIO0B	.EQU	11	; ZILOG PIO 0, CHANNEL B
 INT_CTC0A	.EQU	12	; ZILOG CTC 0, CHANNEL A
 INT_CTC0B	.EQU	13	; ZILOG CTC 0, CHANNEL B
 INT_CTC0C	.EQU	14	; ZILOG CTC 0, CHANNEL C
 INT_CTC0D	.EQU	15	; ZILOG CTC 0, CHANNEL D
-;INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
-;INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B
-;INT_PIO1A	.EQU	11	; ZILOG PIO 1, CHANNEL A
-;INT_PIO1B	.EQU	12	; ZILOG PIO 1, CHANNEL B
-
   #ENDIF
 
   #IF (PLATFORM == PLT_DUO)
 ;
 ; DUO Z80 IM2 INTERRUPTS
 ;
-INT_UART0	.EQU	7	; UART 0
-INT_UART1	.EQU	6	; UART 1 ?????
+INT_UART0	.EQU	4	; UART 0
+INT_UART1	.EQU	5	; UART 1
+INT_SIO0	.EQU	8	; ZILOG SIO 0, CHANNEL A & B
+INT_SIO1	.EQU	9	; ZILOG SIO 1, CHANNEL A & B
+INT_PIO0A	.EQU	10	; ZILOG PIO 0, CHANNEL A
+INT_PIO0B	.EQU	11	; ZILOG PIO 0, CHANNEL B
+INT_CTC0A	.EQU	12	; ZILOG CTC 0, CHANNEL A
+INT_CTC0B	.EQU	13	; ZILOG CTC 0, CHANNEL B
+INT_CTC0C	.EQU	14	; ZILOG CTC 0, CHANNEL C
+INT_CTC0D	.EQU	15	; ZILOG CTC 0, CHANNEL D
+  #ENDIF
+
+  #IF (PLATFORM == PLT_NABU)
+;
+; NABU Z80 IM2 INTERRUPTS
+;
+INT_HCCARCV	.EQU	0	; CABLE ADAPTER RECEIVE
+INT_HCCASND	.EQU	1	; CABLE ADAPTER SEND
+INT_NABUKB	.EQU	2	; KEYBOARD RECEIVE
+INT_VDP		.EQU	3	; VDP VERTICAL RETRACE
+INT_OPTCRD0	.EQU	4	; OPTION CARD 0
+INT_OPTCRD1	.EQU	5	; OPTION CARD 1
+INT_OPTCRD2	.EQU	6	; OPTION CARD 2
+INT_OPTCRD3	.EQU	7	; OPTION CARD 3
+  #ENDIF
+
+  #IF ((PLATFORM != PLT_MBC) & (PLATFORM != PLT_DUO) & (PLATFORM != PLT_NABU))
+;
+; GENERIC Z80 M2 INTERRUPTS
+;
 INT_CTC0A	.EQU	0	; ZILOG CTC 0, CHANNEL A
 INT_CTC0B	.EQU	1	; ZILOG CTC 0, CHANNEL B
 INT_CTC0C	.EQU	2	; ZILOG CTC 0, CHANNEL C
 INT_CTC0D	.EQU	3	; ZILOG CTC 0, CHANNEL D
-INT_SIO0	.EQU	6	; ZILOG SIO 0, CHANNEL A & B
+INT_UART0	.EQU	4	; UART 0
+INT_UART1	.EQU	5	; UART 1
+INT_SIO0	.EQU	7	; ZILOG SIO 0, CHANNEL A & B
 INT_SIO1	.EQU	8	; ZILOG SIO 1, CHANNEL A & B
 INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
 INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B
 INT_PIO1A	.EQU	11	; ZILOG PIO 1, CHANNEL A
 INT_PIO1B	.EQU	12	; ZILOG PIO 1, CHANNEL B
-
   #ENDIF
 
-  #IF (PLATFORM == PLT_NABU)
+#ENDIF
+
+#IF ((CPUFAM == CPU_Z180) & (INTMODE > 0))
 ;
-; NABU Z80 IM2 INTERRUPTS
+; Z180-BASED SYSTEMS
 ;
-INT_HCAARCV	.EQU	0	; UART 0
-INT_HCAASND	.EQU	1	; UART 1 ?????
-INT_NABUKB	.EQU	2	; ZILOG CTC 0, CHANNEL A
-INT_VDP		.EQU	3	; ZILOG CTC 0, CHANNEL B
-INT_OPTCRD0	.EQU	4	; ZILOG CTC 0, CHANNEL C
-INT_OPTCRD1	.EQU	5	; ZILOG CTC 0, CHANNEL D
-INT_OPTCRD2	.EQU	6	; ZILOG SIO 0, CHANNEL A & B
-INT_OPTCRD3	.EQU	7	; ZILOG SIO 1, CHANNEL A & B
-
-  #ENDIF
-
-  #IF ((PLATFORM != PLT_MBC) & (PLATFORM != PLT_DUO) & (PLATFORM != PLT_NABU))
-
-; GENERIC Z80 M2 INTERRUPTS
+; NOTE THAT Z180 PROCESSES ALL INTERNAL INTERRUPTS JUST LIKE
+; IM2 EVEN WHEN CHIP IS IN IM1 MODE.  SO WE INCLUDE THE IM2
+; INTERRUPT ASSIGNMENTS FOR IM1 BELOW.
+;
+INT_INT1	.EQU	0	; Z180 INT 1
+INT_INT2	.EQU	1	; Z180 INT 2
+INT_TIM0	.EQU	2	; Z180 TIMER 0
+INT_TIM1	.EQU	3	; Z180 TIMER 1
+INT_DMA0	.EQU	4	; Z180 DMA 0
+INT_DMA1	.EQU	5	; Z180 DMA 1
+INT_CSIO	.EQU	6	; Z180 CSIO
+INT_SER0	.EQU	7	; Z180 SERIAL 0
+INT_SER1	.EQU	8	; Z180 SERIAL 0
+INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
+INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B
+INT_PIO1A	.EQU	11	; ZILOG PIO 1, CHANNEL A
+INT_PIO1B	.EQU	12	; ZILOG PIO 1, CHANNEL B
+INT_SIO0	.EQU	13	; ZILOG SIO 0, CHANNEL A & B
+INT_SIO1	.EQU	14	; ZILOG SIO 1, CHANNEL A & B
+#ENDIF
 
+#IF ((CPUFAM == CPU_Z280) & (INTMODE >= 2))
+;
+; Z280-BASED SYSTEMS
+;
+; FOR Z280 MODE 3, THESE APPLY TO THE INTA SIGNAL
+; THESE ARE IDENTICAL TO THE GENERIC Z80 ASSIGNMENTS
+;
 INT_CTC0A	.EQU	0	; ZILOG CTC 0, CHANNEL A
 INT_CTC0B	.EQU	1	; ZILOG CTC 0, CHANNEL B
 INT_CTC0C	.EQU	2	; ZILOG CTC 0, CHANNEL C
@@ -1080,11 +1062,9 @@ INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
 INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B
 INT_PIO1A	.EQU	11	; ZILOG PIO 1, CHANNEL A
 INT_PIO1B	.EQU	12	; ZILOG PIO 1, CHANNEL B
-
-  #ENDIF
-
 #ENDIF
 
+
 #DEFINE IVT(INTX) HB_IVT+(INTX * 4)+1
 #DEFINE VEC(INTX) INTX*2
 
diff --git a/Source/HBIOS/syq.asm b/Source/HBIOS/syq.asm
index a913ddf7..c107e4ea 100644
--- a/Source/HBIOS/syq.asm
+++ b/Source/HBIOS/syq.asm
@@ -417,11 +417,11 @@ SYQ_IO:
 	LD	(SYQ_DSKBUF),HL		; SAVE DISK BUFFER ADDRESS
 	LD	A,SYQ_LBA		; LBA OFFSET IN CONFIG
 	CALL	LDHLIYA			; POINT TO LBA DWORD
-#IF (DSKYENABLE)
-  #IF (DSKYDSKACT)
+;;;#IF (DSKYENABLE)
+;;;  #IF (DSKYDSKACT)
 	CALL	HB_DSKACT		; SHOW ACTIVITY
-  #ENDIF
-#ENDIF
+;;;  #ENDIF
+;;;#ENDIF
 	CALL	LD32			; SET DE:HL TO LBA
 ;
 	CALL	SYQ_CMDSETUP		; SETUP ATA COMMAND BUF
diff --git a/Source/HBIOS/term.asm b/Source/HBIOS/term.asm
index 1325cff2..6f193013 100644
--- a/Source/HBIOS/term.asm
+++ b/Source/HBIOS/term.asm
@@ -76,7 +76,8 @@ TERM_ATTACH:
 	PUSH	HL			; COPY VDA INSTANCE DATA PTR
 	POP	DE			; ... TO DE
 	CALL	CIO_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
-	LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	;;;LD	(HCB + HCB_CRTDEV),A	; SET OURSELVES AS THE CRT DEVICE
+	CALL	CIO_SETCRT		; SET OURSELVES AS THE CRT DEVICE
 ;
 	; INCREMENT DEVICE COUNT
 	LD	HL,TERM_DEVCNT		; POINT TO DEVICE COUNT
diff --git a/Source/HBIOS/tms.asm b/Source/HBIOS/tms.asm
index 7b0d7815..e8f57b37 100644
--- a/Source/HBIOS/tms.asm
+++ b/Source/HBIOS/tms.asm
@@ -1,5 +1,5 @@
 ;======================================================================
-;	TM9918 AND V9958 VDU DRIVER
+;	TMS9918, V9938/58 VDU DRIVER
 ;
 ; WRITTEN BY: DOUGLAS GOODALL
 ; UPDATED BY: WAYNE WARTHEN -- 4/7/2013
@@ -43,32 +43,21 @@
 TMSCTRL1:       .EQU   1               ; CONTROL BITS
 TMSINTEN:       .EQU   5               ; INTERRUPT ENABLE BIT
 ;
-		DEVECHO	"TMS: MODE="
-;
-#IF ((TMSMODE == TMSMODE_MSX) | (TMSMODE == TMSMODE_MSX9958))
-TMS_DATREG	.EQU	$98		; READ/WRITE DATA
-TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
+TMSKBD_NONE	.EQU	0
+TMSKBD_KBD	.EQU	1
+TMSKBD_PPK	.EQU	2
+TMSKBD_MKY	.EQU	3
+TMSKBD_NABU	.EQU	4
 ;
-  #IF (TMSMODE == TMSMODE_MSX)
-		DEVECHO	"MSX"
-  #ENDIF
-  #IF (TMSMODE == TMSMODE_MSX9958)
-		DEVECHO	"MSX9958"
-  #ENDIF
-#ENDIF
+TMSKBD		.EQU	TMSKBD_NONE	; ASSUME NONE
 ;
-#IF (TMSMODE == TMSMODE_COLECO)
-TMS_DATREG	.EQU	$BE		; READ/WRITE DATA
-TMS_CMDREG	.EQU	$BF		; READ STATUS / WRITE REG SEL
-		DEVECHO	"COLECO"
-#ENDIF
+		DEVECHO	"TMS: MODE="
 ;
-#IF (TMSMODE == TMSMODE_MSXKBD)
+#IF (TMSMODE == TMSMODE_SCG)
 TMS_DATREG	.EQU	$98		; READ/WRITE DATA
 TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
-TMS_KBDDATA	.EQU	$E0		; KBD CTLR DATA PORT
-TMS_KBDST	.EQU	$E1		; KBD CTLR STATUS/CMD PORT
-		DEVECHO	"MSXKBD"
+TMS_ACR		.EQU	$9C		; AUX CONTROL REGISTER
+		DEVECHO	"SCG"
 #ENDIF
 ;
 #IF (TMSMODE == TMSMODE_N8)
@@ -78,14 +67,29 @@ TMS_PPIA	.EQU	$84		; PPI PORT A
 TMS_PPIB	.EQU	$85		; PPI PORT B
 TMS_PPIC	.EQU	$86		; PPI PORT C
 TMS_PPIX	.EQU	$87		; PPI CONTROL PORT
+TMSKBD		.SET	TMSKBD_PPK	; PPK KEYBOARD
 		DEVECHO	"N8"
 #ENDIF
 ;
-#IF (TMSMODE == TMSMODE_SCG)
+#IF (TMSMODE == TMSMODE_MSX)
 TMS_DATREG	.EQU	$98		; READ/WRITE DATA
 TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
-TMS_ACR		.EQU	$9C		; AUX CONTROL REGISTER
-		DEVECHO	"SCG"
+#ENDIF
+;
+#IF (TMSMODE == TMSMODE_MSXKBD)
+TMS_DATREG	.EQU	$98		; READ/WRITE DATA
+TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
+TMS_KBDDATA	.EQU	$60		; KBD CTLR DATA PORT
+TMS_KBDST	.EQU	$64		; KBD CTLR STATUS/CMD PORT
+TMSKBD		.SET	TMSKBD_KBD	; PS2 KEYBOARD
+		DEVECHO	"MSXKBD"
+#ENDIF
+;
+#IF (TMSMODE == TMSMODE_MSXMKY)
+TMS_DATREG	.EQU	$98		; READ/WRITE DATA
+TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
+TMSKBD		.SET	TMSKBD_MKY	; MSX KEYBOARD
+		DEVECHO	"MSXMKY"
 #ENDIF
 ;
 #IF (TMSMODE == TMSMODE_MBC)
@@ -94,40 +98,38 @@ TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
 TMS_ACR		.EQU	$9C		; AUX CONTROL REGISTER
 TMS_KBDDATA	.EQU	$E2		; KBD CTLR DATA PORT
 TMS_KBDST	.EQU	$E3		; KBD CTLR STATUS/CMD PORT
+TMSKBD		.SET	TMSKBD_KBD	; PS2 KEYBOARD
 		DEVECHO	"MBC"
 #ENDIF
-
+;
+#IF (TMSMODE == TMSMODE_COLECO)
+TMS_DATREG	.EQU	$BE		; READ/WRITE DATA
+TMS_CMDREG	.EQU	$BF		; READ STATUS / WRITE REG SEL
+		DEVECHO	"COLECO"
+#ENDIF
+;
 #IF (TMSMODE == TMSMODE_DUO)
 TMS_DATREG	.EQU	$A0		; READ/WRITE DATA
 TMS_CMDREG	.EQU	$A1		; READ STATUS / WRITE REG SEL
 TMS_ACR		.EQU	$A6		; AUX CONTROL REGISTER
 TMS_KBDDATA	.EQU	$4C		; KBD CTLR DATA PORT
 TMS_KBDST	.EQU	$4D		; KBD CTLR STATUS/CMD PORT
+TMSKBD		.SET	TMSKBD_KBD	; PS2 KEYBOARD
 		DEVECHO	"DUO"
 #ENDIF
 ;
-#IF ((TMSMODE == TMSMODE_NABU40) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMSMODE == TMSMODE_NABU)
 TMS_DATREG	.EQU	$A0		; READ/WRITE DATA
 TMS_CMDREG	.EQU	$A1		; READ STATUS / WRITE REG SEL
-;
-  #IF (TMSMODE == TMSMODE_NABU40)
-		DEVECHO	"NABU-40"
-  #ENDIF
-  #IF (TMSMODE == TMSMODE_NABU80)
-		DEVECHO	"NABU-80"
-  #ENDIF
+TMSKBD		.SET	TMSKBD_NABU	; NABU KEYBOARD
 #ENDIF
 ;
 		DEVECHO	", IO="
 		DEVECHO	TMS_DATREG
-#IF (TMSTIMENABLE & (INTMODE > 0))
-		DEVECHO	", INTERRUPTS ENABLED"
-#ENDIF
-		DEVECHO	"\n"
 ;
 TMS_ROWS	.EQU	24
 ;
-#IF ((TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMS80COLS)
 TMS_FNTVADDR	.EQU	$1000		; VRAM ADDRESS OF FONT DATA
 TMS_FNTSIZE	.EQU	8*256		; ### JLC Mod for JBL compatibility ### = 8x8 Font 256 Chars
 TMS_CHRVADDR	.EQU	$0000		; VRAM ADDRESS OF CHAR SCREEN DATA (NEW CONSTANT) = REG2 * $400
@@ -140,23 +142,47 @@ TMS_FNTSIZE	.EQU	8*256		; ### JLC Mod for JBL compatibility ### = 8x8 Font 256 C
 TMS_CHRVADDR	.EQU	$3800		; VRAM ADDRESS OF CHAR SCREEN DATA (NEW CONSTANT) = REG2 * $400
 TMS_COLS	.EQU	40
 #ENDIF
+;
+		DEVECHO	", SCREEN="
+		DEVECHO	TMS_COLS
+		DEVECHO	"X"
+		DEVECHO	TMS_ROWS
 ;
 #DEFINE USEFONT8X8
 #DEFINE	TMS_FONT FONT8X8
 ;
 TERMENABLE	.SET	TRUE		; INCLUDE TERMINAL PSEUDODEVICE DRIVER
 ;
-#IF (TMSMODE == TMSMODE_N8)
+		DEVECHO ", KEYBOARD="
+;
+#IF (TMSKBD == TMSKBD_NONE)
+		DEVECHO	"NONE"
+#ENDIF
+;
+#IF (TMSKBD == TMSKBD_PPK)
 PPKENABLE	.SET	TRUE		; INCLUDE PPK KEYBOARD SUPPORT
+		DEVECHO	"PPK"
+#ENDIF
+;
+#IF (TMSKBD == TMSKBD_KBD)
+KBDENABLE	.SET	TRUE		; INCLUDE PS2 KEYBOARD SUPPORT
+		DEVECHO	"KBD"
 #ENDIF
 ;
-#IF ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
-KBDENABLE	.SET	TRUE		; INCLUDE KBD KEYBOARD SUPPORT
+#IF (TMSKBD == TMSKBD_MKY)
+MKYENABLE	.SET	TRUE		; INCLUDE MSX KEYBOARD SUPPORT
+		DEVECHO	"MKY"
 #ENDIF
 ;
-#IF ((TMSMODE == TMSMODE_NABU40) |(TMSMODE == TMSMODE_NABU80))
+#IF (TMSKBD == TMSKBD_NABU)
 NABUKBENABLE	.SET	TRUE		; INCLUDE NABU KEYBOARD SUPPORT
+		DEVECHO	"NABU"
+#ENDIF
+;
+#IF (TMSTIMENABLE & (INTMODE > 0))
+		DEVECHO	", INTERRUPTS ENABLED"
 #ENDIF
+		DEVECHO	"\n"
 ;
 ; TMS_IODELAY IS USED TO ADD RECOVERY TIME TO TMS9918/V9958 ACCESSES
 ; IF YOU SEE SCREEN CORRUPTION, ADJUST THIS!!!
@@ -166,8 +192,8 @@ NABUKBENABLE	.SET	TRUE		; INCLUDE NABU KEYBOARD SUPPORT
   #DEFINE	TMS_IODELAY	EX (SP),HL \ EX (SP),HL	; 38 W/S
   ;#DEFINE	TMS_IODELAY	NOP \ NOP \ NOP \ NOP \ NOP ; 20 W/S ### JLC Mod for Clock/2 (9 MHz) ###
 #ELSE
-  ; BELOW WAS TUNED FOR SBC AT 8MHZ
-  #IF ((TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO) | (TMSMODE == TMSMODE_NABU40) | (TMSMODE == TMSMODE_NABU80))
+  ; BELOW WAS TUNED FOR Z80 AT 8MHZ
+  #IF (TMS80COLS)
     #DEFINE	TMS_IODELAY	NOP \ NOP \ NOP \ NOP \ NOP \ NOP \ NOP ; V9958 NEEDS AT WORST CASE, APPROX 4us (28T) DELAY BETWEEN I/O (WHEN IN TEXT MODE)
   #ELSE
     #DEFINE	TMS_IODELAY	NOP \ NOP ; 8 W/S
@@ -179,10 +205,8 @@ NABUKBENABLE	.SET	TRUE		; INCLUDE NABU KEYBOARD SUPPORT
 ;======================================================================
 ;
 TMS_PREINIT:
-#IF (NABUKBENABLE == TRUE)
-	CALL NABUKB_PREINIT
-#ENDIF
-	; DISABLE INTERRUPT GENERATION
+	; DISABLE INTERRUPT GENERATION UNTIL AFTER INTERRUPT HANDLER
+	; HAS BEEN INSTALLED.
 	LD	A, (TMS_INITVDU_REG_1)
         RES	TMSINTEN, A             ; RESET INTERRUPT ENABLE BIT
 	LD	(TMS_INITVDU_REG_1), A
@@ -196,6 +220,7 @@ TMS_INIT:
 ;
 #IF ((TMSMODE == TMSMODE_SCG) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
 	LD	A,$FF
+	EZ80_IO
 	OUT	(TMS_ACR),A		; INIT AUX CONTROL REG
 #ENDIF
 ;
@@ -204,6 +229,7 @@ TMS_INIT:
 
 #IF ((TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
 	LD	A,$FE
+	EZ80_IO
 	OUT	(TMS_ACR),A		; CLEAR VDP RESET
 #ENDIF
 ;
@@ -212,32 +238,29 @@ TMS_INIT:
 #IF (TMSMODE == TMSMODE_SCG)
 	PRTS("SCG$")
 #ENDIF
-#IF (TMSMODE == TMSMODE_MBC)
-	PRTS("MBC$")
-#ENDIF
-#IF (TMSMODE == TMSMODE_DUO)
-	PRTS("DUO$")
-#ENDIF
 #IF (TMSMODE == TMSMODE_N8)
 	PRTS("N8$")
 #ENDIF
 #IF (TMSMODE == TMSMODE_MSX)
 	PRTS("MSX$")
 #ENDIF
-#IF (TMSMODE == TMSMODE_COLECO)
-	PRTS("COLECO$")
-#ENDIF
 #IF (TMSMODE == TMSMODE_MSXKBD)
-	PRTS("RCKBD$")
+	PRTS("MSXKBD$")
 #ENDIF
-#IF (TMSMODE == TMSMODE_MSX9958)
-	PRTS("RC_V9958$")
+#IF (TMSMODE == TMSMODE_MSXMKY)
+	PRTS("MSXMKY$")
 #ENDIF
-#IF (TMSMODE == TMSMODE_NABU40)
-	PRTS("NABU-40$")
+#IF (TMSMODE == TMSMODE_MBC)
+	PRTS("MBC$")
 #ENDIF
-#IF (TMSMODE == TMSMODE_NABU80)
-	PRTS("NABU-80$")
+#IF (TMSMODE == TMSMODE_COLECO)
+	PRTS("COLECO$")
+#ENDIF
+#IF (TMSMODE == TMSMODE_DUO)
+	PRTS("DUO$")
+#ENDIF
+#IF (TMSMODE == TMSMODE_NABU)
+	PRTS("NABU$")
 #ENDIF
 ;
 	PRTS(" IO=0x$")
@@ -252,19 +275,31 @@ TMS_INIT:
 	RET
 ;
 TMS_INIT1:
+#IF (TMSTIMENABLE)
+	CALL PRTSTRD
+	.TEXT	" INTERRUPT ENABLED$"
+#ENDIF
+	CALL	PC_SPACE
+	LD	A,TMS_COLS
+	CALL	PRTDEC8
+	LD	A,'X'
+	CALL	COUT
+	LD	A,TMS_ROWS
+	CALL	PRTDEC8
+;
 	CALL 	TMS_CRTINIT		; SETUP THE TMS CHIP REGISTERS
 	CALL	TMS_LOADFONT		; LOAD FONT DATA FROM ROM TO TMS STRORAGE
 	CALL	TMS_CLEAR		; CLEAR SCREEN, HOME CURSOR
-#IF (TMSMODE == TMSMODE_N8)
+#IF (TMSKBD == TMSKBD_PPK)
 	CALL	PPK_INIT		; INITIALIZE PPI KEYBOARD DRIVER
 #ENDIF
-#IF ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
+#IF (TMSKBD == TMSKBD_KBD)
 	CALL	KBD_INIT		; INITIALIZE 8242 KEYBOARD DRIVER
 #ENDIF
-#IF MKYENABLE
+#IF (TMSKBD == TMSKBD_MKY)
 	CALL	MKY_INIT		; INITIALIZE MKY KEYBOARD DRIVER
 #ENDIF
-#IF ((TMSMODE == TMSMODE_NABU40) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMSKBD == TMSKBD_NABU)
 	CALL	NABUKB_INIT		; INITIALIZE NABU KEYBOARD DRIVER
 #ENDIF
 
@@ -280,14 +315,24 @@ TMS_INIT1:
 	LD	(IVT(INT_VDP)),HL	; IVT INDEX
   #ENDIF
 ;
+	; ENABLE VDP INTERRUPTS NOW
 	LD	A, (TMS_INITVDU_REG_1)
 	SET	TMSINTEN,A		; SET INTERRUPT ENABLE BIT
 	LD	(TMS_INITVDU_REG_1),A
 	LD	C, TMSCTRL1
 	CALL	TMS_SET
+;
+  #IF (TMSMODE == TMSMODE_NABU)
+	; ENABLE VDP INTERRUPTS ON NABU INTERRUPT CONTROLLER
+	LD	A,14			; PSG R14 (PORT A DATA)
+	OUT	(NABU_RSEL),A		; SELECT IT
+	LD	A,(NABU_CTLVAL)		; GET NABU CTL PORT SHADOW REG
+	SET	4,A			; ENABLE VDP INTERRUPTS
+	LD	(NABU_CTLVAL),A		; UPDATE SHADOW REG
+	OUT	(NABU_RDAT),A		; WRITE TO HARDWARE
+  #ENDIF
 ;
 #ENDIF
-
 ;
 	; ADD OURSELVES TO VDA DISPATCH TABLE
 	LD	BC,TMS_FNTBL		; BC := FUNCTION TABLE ADDRESS
@@ -320,38 +365,37 @@ TMS_FNTBL:
 	.DW	TMS_VDAFIL
 	.DW	TMS_VDACPY
 	.DW	TMS_VDASCR
-#IF (TMSMODE == TMSMODE_N8)
+#IF (TMSKBD == TMSKBD_NONE)
+  	.DW	TMS_STAT
+  	.DW	TMS_FLUSH
+  	.DW	TMS_READ
+#ENDIF
+#IF (TMSKBD == TMSKBD_PPK)
 	.DW	PPK_STAT
 	.DW	PPK_FLUSH
 	.DW	PPK_READ
 #ENDIF
-#IF  ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
+#IF (TMSKBD == TMSKBD_KBD)
   	.DW	KBD_STAT
   	.DW	KBD_FLUSH
   	.DW	KBD_READ
 #ENDIF
-#IF ((TMSMODE == TMSMODE_NABU40) | (TMSMODE == TMSMODE_NABU80))
-	.DW	NABUKB_STAT
-	.DW	NABUKB_FLUSH
-	.DW	NABUKB_READ
-#ENDIF
-#IF ((TMSMODE == TMSMODE_MSX) | (TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_SCG) | (TMSMODE == TMSMODE_COLECO))
-  #IF MKYENABLE
+#IF (TMSKBD == TMSKBD_MKY)
   	.DW	MKY_STAT
   	.DW	MKY_FLUSH
   	.DW	MKY_READ
-  #ELSE
-  	.DW	TMS_STAT
-  	.DW	TMS_FLUSH
-  	.DW	TMS_READ
-  #ENDIF
+#ENDIF
+#IF (TMSKBD == TMSKBD_NABU)
+	.DW	NABUKB_STAT
+	.DW	NABUKB_FLUSH
+	.DW	NABUKB_READ
 #ENDIF
 	.DW	TMS_VDARDC
 #IF (($ - TMS_FNTBL) != (VDA_FNCNT * 2))
 	.ECHO	"*** INVALID TMS FUNCTION TABLE ***\n"
 	!!!!!
 #ENDIF
-
+;
 TMS_VDAINI:
 	; RESET VDA
 	; CURRENTLY IGNORES VIDEO MODE AND BITMAP DATA
@@ -359,7 +403,7 @@ TMS_VDAINI:
 	CALL	TMS_CLEAR		; CLEAR SCREEN
 	XOR	A			; SIGNAL SUCCESS
 	RET
-
+;
 TMS_VDAQRY:
 	LD	C,$00			; MODE ZERO IS ALL WE KNOW
 	LD	D,TMS_ROWS		; ROWS
@@ -367,7 +411,7 @@ TMS_VDAQRY:
 	LD	HL,0			; EXTRACTION OF CURRENT BITMAP DATA NOT SUPPORTED YET
 	XOR	A			; SIGNAL SUCCESS
 	RET
-
+;
 TMS_VDARES:
 #IF (CPUFAM == CPU_Z180)
 	CALL	TMS_Z180IO
@@ -544,10 +588,12 @@ TMS_READ:
 ;
 TMS_SET:
 	HB_DI
+	EZ80_IO
 	OUT	(TMS_CMDREG),A		; WRITE IT
 	TMS_IODELAY
 	LD	A,C			; GET THE DESIRED REGISTER
 	OR	$80			; SET BIT 7
+	EZ80_IO
 	OUT	(TMS_CMDREG),A		; SELECT THE DESIRED REGISTER
 	TMS_IODELAY
 	HB_EI
@@ -560,14 +606,16 @@ TMS_SET:
 ;----------------------------------------------------------------------
 ;
 TMS_WR:
-#IF ((TMSMODE == TMSMODE_MSX9958)  | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMS80COLS)
         ; CLEAR R#14 FOR V9958
 	HB_DI
-        XOR     A
-        OUT     (TMS_CMDREG), A
+	XOR	A
+	EZ80_IO
+	OUT	(TMS_CMDREG), A
 	TMS_IODELAY
-        LD      A, $80 | 14
-        OUT     (TMS_CMDREG), A
+	LD	A, $80 | 14
+	EZ80_IO
+	OUT	(TMS_CMDREG), A
 	TMS_IODELAY
 	HB_EI
 #ENDIF
@@ -581,9 +629,11 @@ TMS_WR:
 TMS_RD:
 	HB_DI
 	LD	A,L
+	EZ80_IO
 	OUT	(TMS_CMDREG),A
 	TMS_IODELAY
 	LD	A,H
+	EZ80_IO
 	OUT	(TMS_CMDREG),A
 	TMS_IODELAY
 	HB_EI
@@ -601,10 +651,12 @@ TMS_PROBE:
 	CALL	TMS_WR
 	; WRITE TEST PATTERN TO FIRST TWO BYTES
 	LD	A,$A5			; FIRST BYTE
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; OUTPUT
 	;TMS_IODELAY			; DELAY
 	CALL	DLY64			; DELAY
 	CPL				; COMPLEMENT ACCUM
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; SECOND BYTE
 	;TMS_IODELAY			; DELAY
 	CALL	DLY64			; DELAY
@@ -614,11 +666,13 @@ TMS_PROBE:
 	CALL	TMS_RD
 	; READ TEST PATTERN
 	LD	C,$A5			; VALUE TO EXPECT
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; READ FIRST BYTE
 	;TMS_IODELAY			; DELAY
 	CALL	DLY64			; DELAY
 	CP	C			; COMPARE
 	RET	NZ			; RETURN ON MISCOMPARE
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; READ SECOND BYTE
 	;TMS_IODELAY			; DELAY
 	CALL	DLY64			; DELAY
@@ -639,6 +693,7 @@ TMS_CRTINIT:
 	LD	DE,$4000		; 16KB
 TMS_CRTINIT1:
 	XOR	A
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY			; DELAY
 	DEC	DE
@@ -660,12 +715,12 @@ TMS_CRTINIT2:
 	DJNZ	TMS_CRTINIT2		; LOOP
 ;
 	; ENABLE WAIT SIGNAL IF 9938/58
-#IF ((TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMS80COLS)
 	LD	C,25			; REGISTER 25
 	LD	A,%00000100		; ONLY WTE BIT SET
 	CALL	TMS_SET			; DO IT
 #ENDIF
-    	RET
+	RET
 ;
 ;----------------------------------------------------------------------
 ; CLEAR SCREEN AND HOME CURSOR
@@ -723,6 +778,7 @@ TMS_LOADFONT:
 	LD	DE,TMS_FNTSIZE
 TMS_LOADFONT1:
 	LD	A,(HL)
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY			; DELAY
 	INC	HL
@@ -759,11 +815,13 @@ TMS_SETCUR:
 	PUSH	DE			; PRESERVE DE
 	LD	HL,(TMS_POS)		; GET CURSOR POSITION
 	CALL	TMS_RD			; SETUP TO READ VDU BUF
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; GET REAL CHAR UNDER CURSOR
 	TMS_IODELAY			; DELAY
 	PUSH	AF			; SAVE THE CHARACTER
 	CALL	TMS_WR			; SETUP TO WRITE TO THE SAME PLACE
 	LD	A,$FF			; REPLACE REAL CHAR WITH 255
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; DO IT
 	TMS_IODELAY			; DELAY
 	POP	AF			; RECOVER THE REAL CHARACTER
@@ -787,10 +845,11 @@ TMS_SETCUR0:				; MULT BY 8 FOR FONT INDEX
 	LD	B,8			; 8 BYTES
 	LD	HL,TMS_BUF		; INTO BUFFER
 TMS_SETCUR1:				; READ GLYPH LOOP
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; GET NEXT BYTE
 	TMS_IODELAY			; IO DELAY
 	LD	(HL),A			; SAVE VALUE IN BUF
-	INC	HL					; BUMP BUF POINTER
+	INC	HL			; BUMP BUF POINTER
 	DJNZ	TMS_SETCUR1		; LOOP FOR 8 BYTES
 ;
 	; NOW WRITE INVERTED GLYPH INTO FONT INDEX 255
@@ -802,6 +861,7 @@ TMS_SETCUR2:				; WRITE INVERTED GLYPH LOOP
 	LD	A,(HL)			; GET THE BYTE
 	INC	HL			; BUMP THE BUF POINTER
 	XOR	$FF			; INVERT THE VALUE
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; WRITE IT TO VDU
 	TMS_IODELAY			; IO DELAY
 	DJNZ	TMS_SETCUR2		; LOOP FOR ALL 8 BYTES OF GLYPH
@@ -818,6 +878,7 @@ TMS_CLRCUR:	; REMOVE VIRTUAL CURSOR FROM SCREEN
 	LD	HL,(TMS_POS)		; POINT TO CURRENT CURSOR POS
 	CALL	TMS_WR			; SET UP TO WRITE TO VDU
 	LD	A,(TMS_CURSAV)		; GET THE REAL CHARACTER
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; WRITE IT
 	TMS_IODELAY			; IO DELAY
 	POP	HL			; RECOVER HL
@@ -857,6 +918,7 @@ TMS_PUTCHAR:
 	LD	HL,(TMS_POS)		; LOAD CURRENT POSITION INTO HL
 	CALL	TMS_WR			; SET THE WRITE ADDRESS
 	POP	AF			; RECOVER CHARACTER TO WRITE
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; WRITE THE CHARACTER
 	TMS_IODELAY
 	LD	HL,(TMS_POS)		; LOAD CURRENT POSITION INTO HL
@@ -878,6 +940,7 @@ TMS_FILL:
 ;
 TMS_FILL1:
 	LD	A,C			; RECOVER CHARACTER TO WRITE
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY
 	DEC	DE
@@ -903,6 +966,7 @@ TMS_SCROLL0:				; READ LINE THAT IS ONE PAST CURRENT DESTINATION
 	LD	DE,TMS_BUF
 	LD	B,TMS_COLS
 TMS_SCROLL1:
+	EZ80_IO
 	IN	A,(TMS_DATREG)
 	TMS_IODELAY
 	LD	(DE),A
@@ -916,6 +980,7 @@ TMS_SCROLL1:
 	LD	B,TMS_COLS
 TMS_SCROLL2:
 	LD	A,(DE)
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY
 	INC	DE
@@ -932,6 +997,7 @@ TMS_SCROLL2:
 	LD	A,' '
 	LD	B,TMS_COLS
 TMS_SCROLL3:
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY
 	DJNZ	TMS_SCROLL3
@@ -956,6 +1022,7 @@ TMS_RSCROLL0:	; READ THE LINE THAT IS ONE PRIOR TO CURRENT DESTINATION
 	LD	DE,TMS_BUF		; POINT TO BUFFER
 	LD	B,TMS_COLS		; LOOP FOR EACH COLUMN
 TMS_RSCROLL1:
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; GET THE CHAR
 	TMS_IODELAY			; RECOVER
 	LD	(DE),A			; SAVE IN BUFFER
@@ -969,6 +1036,7 @@ TMS_RSCROLL1:
 	LD	B,TMS_COLS		; INIT LOOP COUNTER
 TMS_RSCROLL2:
 	LD	A,(DE)			; LOAD THE CHAR
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; WRITE TO SCREEN
 	TMS_IODELAY			; DELAY
 	INC	DE			; BUMP BUF POINTER
@@ -985,6 +1053,7 @@ TMS_RSCROLL2:
 	LD	A,' '
 	LD	B,TMS_COLS
 TMS_RSCROLL3:
+	EZ80_IO
 	OUT	(TMS_DATREG),A
 	TMS_IODELAY
 	DJNZ	TMS_RSCROLL3
@@ -1006,6 +1075,7 @@ TMS_BLKCPY1:
 	LD	DE,TMS_BUF		; POINT TO BUFFER
 	LD	B,C
 TMS_BLKCPY2:
+	EZ80_IO
 	IN	A,(TMS_DATREG)		; GET THE NEXT BYTE
 	TMS_IODELAY			; DELAY
 	LD	(DE),A			; SAVE IN BUFFER
@@ -1020,6 +1090,7 @@ TMS_BLKCPY2:
 	LD	B,C
 TMS_BLKCPY3:
 	LD	A,(DE)			; GET THE CHAR FROM BUFFER
+	EZ80_IO
 	OUT	(TMS_DATREG),A		; WRITE TO VDU
 	TMS_IODELAY			; DELAY
 	INC	DE			; BUMP BUF PTR
@@ -1062,7 +1133,7 @@ TMS_Z180IOX:
 
 #IF (TMSTIMENABLE & (INTMODE > 0))
 TMS_TSTINT:
- 	IN      A,(TMS_CMDREG)		; TEST FOR INT FLAG
+	IN_A_NN(TMS_CMDREG)
 	AND	$80
 	JR	NZ,TMS_INTHNDL
 	AND	$00			; RETURN Z - NOT HANDLED
@@ -1070,10 +1141,6 @@ TMS_TSTINT:
 
 TMS_INTHNDL:
 
-;#IF MKYENABLE
-;	CALL	MKY_INT
-;#ENDIF
-
 	CALL	HB_TIMINT		; RETURN NZ - HANDLED
 	OR	$FF
 	RET
@@ -1096,21 +1163,21 @@ TMS_COLOR_TBL	.DB	$01,$08,$02,$0A,$04,$06,$0C,$0F,$0E,$09,$03,$0B,$05,$0D,$07,$0
 ;==================================================================================================
 ;
 TMS_IDAT:
-#IF ((TMSMODE == TMSMODE_N8))
+#IF ((TMSKBD == TMSKBD_NONE) | (TMSKBD == TMSKBD_MKY) | (TMSKBD == TMSKBD_NABU))
+	.FILL	4,0			; DUMMY KEYBOARD CONFIG DATA
+#ENDIF
+#IF (TMSKBD == TMSKBD_PPK)
 	.DB	TMS_PPIA		; PPI PORT A
 	.DB	TMS_PPIB		; PPI PORT B
 	.DB	TMS_PPIC		; PPI PORT C
 	.DB	TMS_PPIX		; PPI CONTROL PORT
 #ENDIF
-#IF ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO))
+#IF (TMSKBD == TMSKBD_KBD)
 	.DB	KBDMODE_PS2		; PS/2 8242 KEYBOARD CONTROLLER
 	.DB	TMS_KBDST		; 8242 CMD/STATUS PORT
 	.DB	TMS_KBDDATA		; 8242 DATA PORT
 	.DB	0			; FILLER
 #ENDIF
-#IF ((TMSMODE == TMSMODE_MSX) | (TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_SCG) | (TMSMODE == TMSMODE_COLECO) | (TMSMODE == TMSMODE_NABU40) | (TMSMODE == TMSMODE_NABU80))
-	.FILL	4,0			; DUMMY KEYBOARD CONFIG DATA
-#ENDIF
 ;
 	.DB	TMS_DATREG
 	.DB	TMS_CMDREG
@@ -1157,11 +1224,11 @@ TMS_IDAT:
 ; 5S		Fifth sprite (not displayed) detected. Value in FS* is valid.
 ; INT		Set at each screen update, used for interrupts.
 ;
-#IF ((TMSMODE == TMSMODE_MSX9958) | (TMSMODE == TMSMODE_MBC) | (TMSMODE == TMSMODE_DUO) | (TMSMODE == TMSMODE_NABU80))
+#IF (TMS80COLS)
 ;
 ; NOTE: YAMAHA 9938/58 DOCUMENTATION SAYS R3 IS SAME AS 9918 (ADR >> 10),
 ; BUT THIS SEEMS TO BE WRONG AND CORRECTLY DOCUMENTED AT
-; https://www.msx.org/wiki/Screen_Modes_Description#SCREEN_0_in_80-column_.28Text_mode_2.29
+; https://www.msx.org/wiki/Screen_Modes_Description#SCREEN_0_in_80-column_.28Text_mode_2.29
 ; BITS 1-0 SHOULD BE 1.  BITS 8-2 SHOULD BE (ADR >> 8).
 ;
 ; ### JLC Mod
@@ -1179,7 +1246,11 @@ TMS_INITVDU_REG_1:
 	.DB	$00		; REG 6 - NO SPRITE GENERATOR TABLE
 	.DB	$F0		; REG 7 - WHITE ON BLACK
 	.DB	$88		; REG 8 - COLOUR BUS INPUT, DRAM 64K
+#IF (TICKFREQ == 50)
+	.DB	$02		; REG 9
+#ELSE
 	.DB	$00		; REG 9
+#ENDIF
 	.DB	$00		; REG 10 - COLOUR TABLE A14-A16 (TMS_FNTVADDR - $1000)
 ;
 #ELSE 		; _______TMS9918 REGISTER SET_______
diff --git a/Source/HBIOS/uart.asm b/Source/HBIOS/uart.asm
index bedf4487..205a291e 100644
--- a/Source/HBIOS/uart.asm
+++ b/Source/HBIOS/uart.asm
@@ -17,6 +17,21 @@
 ;    F   E   D   C   B   A   9   8     7   6   5   4   3   2   1   0
 ;              -- MCR --                        -- LCR --
 ;
+;  STANDARD UART BASE I/O ADDRESSES:
+;    - ECB SBC Z80	$68
+;    - ECB CASSETTE	$80
+;    - ECB 4UART	$C0,$C8,$D0,$D8
+;    - ECB MFPIC	$18
+;    - ZETA		$68
+;    - DUODYNE Z80	$58
+;    - DUODYNE SELFHOST	$A8
+;    - DUODYNE MULTI IO	$70,$78
+;    - NHYODYNE Z80	$68
+;    - NHYODYNE DUART	$80,$88
+;    - RCBUS EPSER	$A0,$A8
+;    - RCBUS DUAL RS232	$80,$88
+;    - EPITX		$A0,$A8
+;    - NABU		$48
 ;
 UART_DEBUG		.EQU	FALSE
 ;
@@ -54,27 +69,6 @@ UART_FIFOACT		.EQU	6	; FIFO ACTIVE BIT
 UART_AFCACT		.EQU	5	; AUTO FLOW CONTROL ACTIVE BIT
 UART_CTSBAD		.EQU	4	; CTS STALL DETECTED
 ;
-#IF (PLATFORM == PLT_DUO)
-UARTSBASE		.EQU	$58
-UARTDBASE		.EQU	$70
-#ENDIF
-;
-#IF (PLATFORM == PLT_NABU)
-UARTSBASE		.EQU	$48
-UARTDBASE		.EQU	$80
-#ENDIF
-;
-#IF ((PLATFORM != PLT_DUO) & (PLATFORM != PLT_NABU))
-UARTSBASE		.EQU	$68
-UARTDBASE		.EQU	$80
-#ENDIF
-;
-UARTABASE		.EQU	$A8
-UARTCBASE		.EQU	$80
-UARTMBASE		.EQU	$18
-UART4BASE		.EQU	$C0
-UARTRBASE		.EQU	$A0
-;
 #IF (UARTINTS)
 ;
   #IF ((INTMODE == 2) | (INTMODE == 3))
@@ -92,17 +86,17 @@ UART1_IVT	.EQU	IVT(INT_UART1)
 ;
 ;
 UART_PREINIT:
-#IF (UART4)
+#IF (UART4UART)
 ;
 ; INIT UART4 BOARD CONFIG REGISTER (NO HARM IF IT IS NOT THERE)
 ;
 	LD	A,$80			; SELECT 7.3728MHZ OSC & LOCK CONFIG REGISTER
-	OUT	(UART4BASE+$0F),A	; DO IT
+	OUT	(UART4UARTBASE+$0F),A	; DO IT
 #ENDIF
 ;
 ; SETUP THE DISPATCH TABLE ENTRIES
 ;
-	LD	B,UART_CNT		; LOOP CONTROL
+	LD	B,UARTCNT		; LOOP CONTROL
 	LD	C,0			; PHYSICAL UNIT INDEX
 	XOR	A			; ZERO TO ACCUM
 	LD	(UART_DEV),A		; CURRENT DEVICE NUMBER
@@ -203,7 +197,7 @@ UART_INITUNIT1:
 ;
 ;
 UART_INIT:
-	LD	B,UART_CNT		; COUNT OF POSSIBLE UART UNITS
+	LD	B,UARTCNT		; COUNT OF POSSIBLE UART UNITS
 	LD	C,0			; INDEX INTO UART CONFIG TABLE
 UART_INIT1:
 	PUSH	BC			; SAVE LOOP CONTROL
@@ -249,14 +243,14 @@ UART_INIT2:
 
 UART_INT:
 ;
-    #IF (UARTSBC)
-	LD	IY,UART_CFG_SBC
+    #IF (UARTCNT >= 1)
+	LD	IY,UART0_CFG
 	CALL	UART_INTRCV
 	RET	NZ
     #ENDIF
 ;
-    #IF (UARTCAS)
-	LD	IY,UART_CFG_CAS
+    #IF (UARTCNT >= 2)
+	LD	IY,UART1_CFG
 	CALL	UART_INTRCV
 	RET	NZ
     #ENDIF
@@ -265,15 +259,15 @@ UART_INT:
 ;
   #IF ((INTMODE == 2) | (INTMODE == 3))
 ;
-    #IF (UARTSBC)
-UART_INTSBC:
-	LD	IY,UART_CFG_SBC
+    #IF (UARTCNT >= 1)
+UART_INT0:
+	LD	IY,UART0_CFG
 	JR	UART_INTRCV
     #ENDIF
 ;
-    #IF (UARTCAS)
-UART_INTCAS:
-	LD	IY,UART_CFG_CAS
+    #IF (UARTCNT >= 2)
+UART_INT1:
+	LD	IY,UART1_CFG
 	JR	UART_INTRCV
     #ENDIF
 ;
@@ -837,16 +831,6 @@ UART_CHIP2:	; PICK BETWEEN 16550A/C
 	JR	UART_CHIP_16550C	; IS SET, SO 16550C
 ;
 UART_CHIP_NONE:
-;
-#IF (UARTSBCFORCE)
-	; SIMH DOES NOT EMULATE A UART WELL ENOUGH TO BE DETECTED, SO
-	; THIS BIT OF CODE CAN BE ENABLED TO FORCE THE PRIMARY SBC
-	; UART TO BE HANDLED AS AN 8250.
-	LD	A,(IY+2)		; BASE IO PORT
-	CP	UARTSBASE		; IS THIS PRIMARY SBC PORT?
-	JR	Z,UART_CHIP_8250	; SPECIAL CASE FOR PRIMARY UART!
-#ENDIF
-;
 	LD	A,UART_NONE		; NO UART DETECTED AT THIS PORT
 	RET
 ;
@@ -1028,199 +1012,153 @@ UART_DEV		.DB	0		; DEVICE NUM USED DURING INIT
 ; UART PORT TABLE
 ;
 UART_CFG:
-#IF (UARTSBC)
-UART_CFG_SBC:
-	; SBC/ZETA ONBOARD SERIAL PORT
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTSBASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTSBASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	UARTSBC_RCVBUF			; POINTER TO RCV BUFFER STRUCT
-;
-	DEVECHO	"UART: MODE=SBC, IO="
-	DEVECHO	UARTSBASE
+;
+#IF (UARTCNT >= 1)
+UART0_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)	; +0
+	.DB	0				; UART TYPE (SET DURING INIT)		; +1
+	.DB	UART0BASE			; IO PORT BASE (RBR, THR)		; +2
+	.DB	UART0BASE + UART_LSR		; LINE STATUS PORT (LSR)		; +3
+	.DW	UART0CFG			; LINE CONFIGURATION			; +4
+	.DW	UART0_RCVBUF			; POINTER TO RCV BUFFER STRUCT		; +6
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART0BASE
   #IF ((UARTINTS) & (INTMODE > 0))
 	DEVECHO	", INTERRUPTS ENABLED"
   #ENDIF
 	DEVECHO	"\n"
 #ENDIF
-#IF (UARTAUX)
-UART_CFG_AUX:
-	; AUX SERIAL PORT
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTABASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTABASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; NO INT HANDLER
-;
-	DEVECHO	"UART: MODE=AUX, IO="
-	DEVECHO	UARTABASE
-	DEVECHO	"\n"
-#ENDIF
-#IF (UARTCAS)
-UART_CFG_CAS:
-	; CASSETTE INTERFACE SERIAL PORT
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTCBASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTCBASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCASSPD			; LINE CONFIGURATION
-	.DW	UARTCAS_RCVBUF			; POINTER TO RCV BUFFER STRUCT
-;
-	DEVECHO	"UART: MODE=CAS, IO="
-	DEVECHO	UARTCBASE
+;
+#IF (UARTCNT >= 2)
+UART1_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART1BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART1BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART1CFG			; LINE CONFIGURATION
+	.DW	UART1_RCVBUF			; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART1BASE
   #IF ((UARTINTS) & (INTMODE > 0))
 	DEVECHO	", INTERRUPTS ENABLED"
   #ENDIF
 	DEVECHO	"\n"
 #ENDIF
-#IF (UARTMFP)
-UART_CFG_MFP:
-	; MF/PIC SERIAL PORT
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTMBASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTMBASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=MFP, IO="
-	DEVECHO	UARTSBASE
+;
+#IF (UARTCNT >= 3)
+UART2_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART2BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART2BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART2CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART2BASE
 	DEVECHO	"\n"
 #ENDIF
-#IF (UART4)
-	; 4UART SERIAL PORT A
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UART4BASE+0			; IO PORT BASE (RBR, THR)
-	.DB	UART4BASE+0 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=4UART, IO="
-	DEVECHO	UART4BASE+0
-	DEVECHO	"\n"
 ;
-	; 4UART SERIAL PORT B
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UART4BASE+8			; IO PORT BASE (RBR, THR)
-	.DB	UART4BASE+8 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=4UART, IO="
-	DEVECHO	UART4BASE+8
+#IF (UARTCNT >= 4)
+UART3_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART3BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART3BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART3CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART3BASE
 	DEVECHO	"\n"
+#ENDIF
 ;
-	; 4UART SERIAL PORT C
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UART4BASE+16			; IO PORT BASE (RBR, THR)
-	.DB	UART4BASE+16 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=4UART, IO="
-	DEVECHO	UART4BASE+16
+#IF (UARTCNT >= 5)
+UART4_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART4BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART4BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART4CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART4BASE
 	DEVECHO	"\n"
+#ENDIF
 ;
-	; 4UART SERIAL PORT D
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UART4BASE+24			; IO PORT BASE (RBR, THR)
-	.DB	UART4BASE+24 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=4UART, IO="
-	DEVECHO	UART4BASE+24
+#IF (UARTCNT >= 6)
+UART5_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART5BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART5BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART5CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART5BASE
 	DEVECHO	"\n"
 #ENDIF
-#IF (UARTRC)
-	; UARTRC SERIAL PORT A
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTRBASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTRBASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=RC, IO="
-	DEVECHO	UARTRBASE+0
-	DEVECHO	"\n"
 ;
-	; UARTRC SERIAL PORT B
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTRBASE+8			; IO PORT BASE (RBR, THR)
-	.DB	UARTRBASE+8 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=RC, IO="
-	DEVECHO	UARTRBASE+8
+#IF (UARTCNT >= 7)
+UART6_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART6BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART6BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART6CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART6BASE
 	DEVECHO	"\n"
-;
 #ENDIF
-#IF (UARTDUAL)
-	; DUAL UART CHANNEL A
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTDBASE+8			; IO PORT BASE (RBR, THR)
-	.DB	UARTDBASE+8 + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-	; DUAL UART CHANNEL B
-	.DB	0				; DEVICE NUMBER (UPDATED DURING INIT)
-	.DB	0				; UART TYPE
-	.DB	UARTDBASE			; IO PORT BASE (RBR, THR)
-	.DB	UARTDBASE + UART_LSR		; LINE STATUS PORT (LSR)
-	.DW	UARTCFG				; LINE CONFIGURATION
-	.DW	0				; SHOULD NEVER NEED INT HANDLER
-;
-	DEVECHO	"UART: MODE=DUAL, IO="
-	DEVECHO	UARTDBASE+8
-	DEVECHO	"\n"
 ;
-	DEVECHO	"UART: MODE=DUAL, IO="
-	DEVECHO	UARTDBASE+0
+#IF (UARTCNT >= 8)
+UART7_CFG:
+	.DB	0				; DEVICE NUMBER (SET DURING INIT)
+	.DB	0				; UART TYPE (SET DURING INIT)
+	.DB	UART7BASE			; IO PORT BASE (RBR, THR)
+	.DB	UART7BASE + UART_LSR		; LINE STATUS PORT (LSR)
+	.DW	UART7CFG			; LINE CONFIGURATION
+	.DW	0				; POINTER TO RCV BUFFER STRUCT
+;
+	DEVECHO	"UART: IO="
+	DEVECHO	UART7BASE
 	DEVECHO	"\n"
-;
 #ENDIF
 ;
-UART_CNT	.EQU	($ - UART_CFG) / 8
-;
 #IF ((!UARTINTS) | (INTMODE == 0))
 ;
-UARTSBC_RCVBUF	.EQU	0
-UARTCAS_RCVBUF	.EQU	0
+UART0_RCVBUF	.EQU	0
+UART1_RCVBUF	.EQU	0
 ;
 #ELSE
 ;
 ; UART SBC RECEIVE BUFFER
 ;
-  #IF (UARTSBC)
+  #IF (UARTCNT >= 1)
 ;
-UARTSBC_RCVBUF:
-UARTSBC_CNT	.DB	0		; CHARACTERS IN RING BUFFER
-UARTSBC_HD	.DW	UARTSBC_BUF	; BUFFER HEAD POINTER
-UARTSBC_TL	.DW	UARTSBC_BUF	; BUFFER TAIL POINTER
-UARTSBC_BUF	.FILL	UART_BUFSZ,0	; RECEIVE RING BUFFER
+UART0_RCVBUF:
+UART0_CNT	.DB	0		; CHARACTERS IN RING BUFFER
+UART0_HD	.DW	UART0_BUF	; BUFFER HEAD POINTER
+UART0_TL	.DW	UART0_BUF	; BUFFER TAIL POINTER
+UART0_BUF	.FILL	UART_BUFSZ,0	; RECEIVE RING BUFFER
 ;
   #ENDIF
 ;
 ; UART CASSETTE RECEIVE BUFFER
 ;
-  #IF (UARTCAS)
+  #IF (UARTCNT >= 2)
 ;
-UARTCAS_RCVBUF:
-UARTCAS_CNT	.DB	0		; CHARACTERS IN RING BUFFER
-UARTCAS_HD	.DW	UARTCAS_BUF	; BUFFER HEAD POINTER
-UARTCAS_TL	.DW	UARTCAS_BUF	; BUFFER TAIL POINTER
-UARTCAS_BUF	.FILL	UART_BUFSZ,0	; RECEIVE RING BUFFER
+UART1_RCVBUF:
+UART1_CNT	.DB	0		; CHARACTERS IN RING BUFFER
+UART1_HD	.DW	UART1_BUF	; BUFFER HEAD POINTER
+UART1_TL	.DW	UART1_BUF	; BUFFER TAIL POINTER
+UART1_BUF	.FILL	UART_BUFSZ,0	; RECEIVE RING BUFFER
 ;
   #ENDIF
 ;
diff --git a/Source/HBIOS/updater.asm b/Source/HBIOS/updater.asm
index 24cbb2ba..b23bb2cd 100644
--- a/Source/HBIOS/updater.asm
+++ b/Source/HBIOS/updater.asm
@@ -131,7 +131,7 @@
 ;
 #INCLUDE	"std.asm"
 ;
-HBX_BNKSEL	.EQU	$FE2B
+HBX_BNKSEL	.EQU	$FFF3
 ;
 #DEFINE	HB_DI	DI
 #DEFINE	HB_EI	EI
diff --git a/Source/HBIOS/usrrom.asm b/Source/HBIOS/usrrom.asm
index be9d80f4..146d4937 100644
--- a/Source/HBIOS/usrrom.asm
+++ b/Source/HBIOS/usrrom.asm
@@ -1,34 +1,114 @@
 ;
-; USRROM	TEMPLATE FOR A CUSTOM USER ROM
+;=============================================================================
+; USRROM.ASM - SAMPLE CUSTOM ROM USER APPLICATION
+;=============================================================================
 ;
-#INCLUDE	"std.asm"
+; VERSION 1.1	BY - MARTINR	31-MAY-2024
 ;
-CR	.EQU    0DH
-LF	.EQU    0AH
+; THIS IS AN EXAMPLE USER ROM APPLICATION THAT IS AUTOMATICALLY INCLUDED
+; IN THE ROMWBW ROM.  IT IS INVOKED FROM THE BOOT LOADER USING THE
+; 'U' (USER APPLICATION) OPTION.  YOU MAY REPLACE THIS SOURCE CODE WITH
+; YOUR OWN CUSTOM CODE.  IT WILL BE ASSEMBLED AND INCLUDED WITH YOUR
+; CUSTOM ROM BUILD.  REFER TO THE ROMWBW USER GUIDE FOR MORE INFORMATION.
 ;
-	.ORG    USR_LOC
+; THANKS AND CREDIT TO MARTIN R. FOR PROVIDING THIS APPLICATION!
 ;
-	LD	SP,USR_END
+; - THE SOURCE IS ASSEMBLED WITH THE TASM ASSEMBLER.
+; - THE APPLICATION MUST START (ORG) AT USR_LOC ($100)
+; - THE APPLICATION MUST BE EXACTLY USR_SIZ BYTES.  THIS IS AUTOMATICALLY
+;   ENFORCED AT THE END OF THE FILE.
+; - AT EXIT, THE APPLICATION SHOULD RETURN TO THE BOOT LOADER USING THE
+;   HBIOS WARM RESET FUNCTION AS DEMONSTRATED BELOW.
+; - THE APPLICATION MAY MAKE HBIOS FUNCTION CALLS WITHOUT RESTRICTION,
+;   BUT CANNOT USE ANY OS (CP/M) FUNCTIONS BECAUSE NO OS IS LOADED.
+; - THE APPLICATION MAY NOT CHANGE THE INTERRUPT MODE (WHICH IS DEFINED
+;   IN THE ROM CONFIGURATION).  THE SYSTEM'S INTERRUPT
+;   MODE CAN BE QUERIED BY AN HBIOS API CALL IF DESIRED.
+; - THE APPLICATION MAY TEMPORARILY DISABLE INTERRUPTS BY BRACKETING
+;   SECTIONS OF CODE WITH DI/EI AS NEEDED.  IF INTERRUPTS ARE
+;   TEMPORARILY DISABLED, THEY SHOULD NOT SHOULD NOT
+;   BE LEFT DISABLED ACROSS HBIOS API CALLS.
 ;
-	LD	HL,BOOTMSG		; INTRODUCTION
-	CALL	PRTSTR
+; INCLUDE STD.ASM WHICH DEFINES SOME KEY EQUATES USED BELOW.  MOST
+; IMPORTANT ARE USR_LOC, USR_SIZ, AND USR_END.  IT ALSO DEFINES EQUATES
+; FOR THE HBIOS FUNCTION CALLS.
+;
+#INCLUDE "std.asm"
+;
+	.LIST
+;
+CR	.EQU	0DH
+LF	.EQU	0AH
+;
+ROWS	.EQU	8		; NUMBER OF PIXEL ROWS PER CHARACTER
+COLS	.EQU	8		; NUMBER OF PIXEL COLUMNS PER CHARACTER
+;
+; APPLICATION WILL WILL BE LOADED AT USR_LOC.  THEREFORE, THE CODE
+; MUST "ORG" AT THIS ADDRESS.  TO CHANGE THE LOAD LOCATION OF THIS
+; CODE, YOU CAN UPDATE USR_LOC IN STD.ASM.
+;
+	.ORG	USR_LOC
+;
+; PLACE STACK AT THE TOP OF AVAILABLE RAM (JUST BELOW THE HBIOS PROXY).
+;
+	LD	SP,HBX_LOC
+;
+;*****************************************************************************
+;
+; DISPLAY BANNER
+;
+	LD	A,CR
+	CALL	COUT
+	LD	A,LF
+	CALL	COUT		; COUT PRESERVES AF, BC, DE, & HL
+	CALL	COUT
+	CALL	COUT
 ;
-	CALL	CIN			; DO STUFF
+	LD	HL,BANNER+1	; POINTER TO THE 8X8 CHARACTER BITMAPS
+	LD	D,ROWS		; D=ROWS PER CHARACTER
+;
+NXTLIN:	LD	A,(BANNER)	; FETCH THE NUMBER OF CHARACTERS IN THE BANNER
+	LD	E,A
+;
+NXTCHR:	LD	C,(HL)		; FETCH THE BIT PATTERN FOR THE CHARACTER-LINE
+	LD	B,COLS		; 8 COLUMNS PER CHARACTER-LINE
+NXTBIT:	SLA	C		; SHIFT-LEFT THE NEXT BIT INTO THE CARRY FLAG
+	JR	C, DOT
+	LD	A,' '		; IF NO-CARRY THEN PRINT A 'SPACE'
+	JR	GAP
+DOT:	LD	A,'X'		; IF A CARRY THEN PRINT AN 'X'
+GAP:	CALL	COUT		; COUT PRESERVES AF, BC, DE, & HL
+	DJNZ	NXTBIT		; GO ROUND AND PRINT ALL 8 BITS FOR THE CHARACTER-LINE
+;
+	INC	HL		; POINT TO NEXT CHARACTER-LINE
+	DEC	E
+	JR	NZ,NXTCHR	; GO ROUND AND PRINT THE NEXT CHARACTER
+;
+	LD	A,CR		; REACHED THE END OF A LINE, SO PRINT CRLF
+	CALL	COUT		; COUT PRESERVES AF, BC, DE, & HL
+	LD	A,LF
+	CALL	COUT
+;
+	DEC	D
+	JR	NZ,NXTLIN	; GO ROUND AND PRINT THE NEXT LINE
+;
+;*****************************************************************************
+;
+; FINISHED DISPLAYING THE BANNER, NOW END THE 'APP' TIDILY
+;
+	LD	HL,MESSAGE		; PRINT A MESSAGE
+	CALL	PRTSTR
+	CALL	CIN			; AND WAIT FOR A KEYPRESS
 ;
 	LD	B,BF_SYSRESET		; SYSTEM RESTART
 	LD	C,BF_SYSRES_WARM	; WARM START
-	CALL	$FFF0			; CALL HBIOS
-;       RET
+	RST	08			; CALL HBIOS (DOES NOT RETURN)
 ;
+;*****************************************************************************
 ;
+; SUPPORT ROUTINES
 ;
-; PRINT A STRING AT ADDRESS SPECIFIED IN HL
-; STRING MUST BE TERMINATED BY '$'
-; USAGE:
-;   LD	HL,MYSTR
-;   CALL PRTSTR
-;   ...
-;   MYSTR: .DB  "HELLO$"
+; PRINT A STRING OF CHARACTERS STARTING AT HL, ENDING WITH '$'
 ;
 PRTSTR:	LD	A,(HL)
 	INC	HL
@@ -43,8 +123,8 @@ COUT:	PUSH	AF
 	PUSH	BC
 	PUSH	DE
 	PUSH	HL
-	LD	B,01H
-	LD	C,80H
+	LD	B,BF_CIOOUT
+	LD	C,CIO_CONSOLE
 	LD	E,A
 	RST	08
 	POP	HL
@@ -58,8 +138,8 @@ COUT:	PUSH	AF
 CIN:	PUSH	BC
 	PUSH	DE
 	PUSH	HL
-	LD	B,00H
-	LD	C,80H
+	LD	B,BF_CIOIN
+	LD	C,CIO_CONSOLE
 	RST	08
 	LD	A,E
 	POP	HL
@@ -67,18 +147,60 @@ CIN:	PUSH	BC
 	POP	BC
 	RET
 ;
-BOOTMSG:.DB	CR,LF,CR,LF
-	.DB	"No User ROM Installed."
-	.DB	CR,LF,CR,LF
+;*****************************************************************************
+;
+; DATA SECTION
+;
+BANNER:
+	.DB	6	; THE NUMBER OF CHARACTERS IN THE BANNER
+;
+#IF FALSE
+	; UPPER CASE LOGO ("ROMWBW")
+	.DB	%01111100, %00011100, %01000001, %01000001, %01111100, %01000001
+	.DB	%01000010, %00100010, %01100011, %01000001, %01000010, %01000001
+	.DB	%01000001, %01000001, %01010101, %01000001, %01000001, %01000001
+	.DB	%01000001, %01000001, %01001001, %00100010, %01111110, %00100010
+	.DB	%01111110, %01000001, %01000001, %00100010, %01000010, %00100010
+	.DB	%01000100, %01000001, %01000001, %00101010, %01000001, %00101010
+	.DB	%01000010, %00100010, %01000001, %00101010, %01000001, %00101010
+	.DB	%01000001, %00011100, %01000001, %00010100, %01111110, %00010100
+#ENDIF
+;
+#IF TRUE
+	; UPPER AND LOWER CASE LOGO ("RomWBW")
+	.DB	%00000000, %00000000, %00000000, %00000000, %00000000, %00000000
+	.DB	%01111000, %00000000, %00000000, %01000100, %01111000, %01000100
+	.DB	%01000100, %00000000, %00000000, %01000100, %01000100, %01000100
+	.DB	%01000100, %00111000, %00101000, %01000100, %01000100, %01000100
+	.DB	%01111000, %01000100, %01010100, %01010100, %01111000, %01010100
+	.DB	%01010000, %01000100, %01010100, %01010100, %01000100, %01010100
+	.DB	%01001000, %01000100, %01000100, %01101100, %01000100, %01101100
+	.DB	%01000100, %00111000, %01000100, %01000100, %01111000, %01000100
+#ENDIF
+;
+MESSAGE:
+	.DB	CR,LF,LF
+	.DB	"This is an example User Application - why not create your own?",CR,LF
+	.DB	"Please see the relevant User Guide section for more information."
+	.DB	CR,LF,LF,LF
 	.DB	"Press a key to return to Boot Loader.$"
 ;
 ; IT IS CRITICAL THAT THE FINAL BINARY BE EXACTLY USR_SIZ BYTES.
-; THIS GENERATES FILLER AS NEEDED.
-;				
+; THIS GENERATES FILLER AS NEEDED.  IT WILL ALSO FORCE AN ASSEMBLY
+; ERROR IF THE SIZE EXCEEDS THE SPACE ALLOCATED.
+;
 SLACK	.EQU	(USR_END - $)
-	.FILL	SLACK,00
+;
+#IF (SLACK < 0)
+	.ECHO	"*** USRAPP IS TOO BIG!!!\n"
+	!!!	; FORCE AN ASSEMBLY ERROR
+#ENDIF
+;
+	.FILL	SLACK,$00
 	.ECHO	"User ROM space remaining: "
 	.ECHO	SLACK
 	.ECHO	" bytes.\n"
-        .END
-
+;
+	.NOLIST
+;
+	.END
diff --git a/Source/HBIOS/util.asm b/Source/HBIOS/util.asm
index 2496dd52..6d1ee813 100644
--- a/Source/HBIOS/util.asm
+++ b/Source/HBIOS/util.asm
@@ -101,8 +101,8 @@ PRTCH:
 	PUSH	AF
 	LD	A,(HL)
 	CALL	COUT
-	POP	AF
 	INC	HL
+	POP	AF
 	EX	(SP),HL
 	RET
 ;
@@ -554,7 +554,7 @@ BYTE2BCD1:
 	RET
 
 #IFDEF USEDELAY
-
+#IF (CPUFAM != CPU_EZ80)
 ;
 ; DELAY 16US (CPU SPEED COMPENSATED) INCUDING CALL/RET INVOCATION
 ; REGISTER A AND FLAGS DESTROYED
@@ -632,6 +632,7 @@ VDELAY1:			;				|	|
 ;									|
 	RET			; 10TS (FINAL RETURN)			|
 	;---------------------------------------------------------------+
+#ENDIF
 ;
 ; DELAY ABOUT 0.5 SECONDS
 ; 500000US / 16US = 31250
@@ -644,6 +645,7 @@ LDELAY:
 	POP	DE
 	POP	AF
 	RET
+#IF (CPUFAM != CPU_EZ80)
 ;
 ; INITIALIZE DELAY SCALER BASED ON OPERATING CPU SPEED
 ; ENTER WITH A = CPU SPEED IN MHZ
@@ -666,6 +668,8 @@ CPUSCL	.DB	CPUMHZ - 2		; OTHERWISE 2 LESS THAN PHI MHZ
   #ENDIF
 ;
 #ENDIF
+#ENDIF
+
 ;
 ; SHORT DELAY FUNCTIONS.  NO CLOCK SPEED COMPENSATION, SO THEY
 ; WILL RUN LONGER ON SLOWER SYSTEMS.  THE NUMBER INDICATES THE
@@ -680,7 +684,13 @@ DLY16:	CALL	DLY8	; 432	400
 DLY8:	CALL	DLY4	; 216	200
 DLY4:	CALL	DLY2	; 108	100
 DLY2:	CALL	DLY1	; 54	50
-DLY1:	RET		; 27	25
+DLY1:	
+#IF (CPUFAM == CPU_EZ80)
+	NOP
+	NOP
+	NOP
+#ENDIF
+	RET		; 27	25
 ;
 ; MULTIPLY 8-BIT VALUES
 ; IN:  MULTIPLY H BY E
diff --git a/Source/HBIOS/ym2612.asm b/Source/HBIOS/ym2612.asm
index a4818364..018729d6 100644
--- a/Source/HBIOS/ym2612.asm
+++ b/Source/HBIOS/ym2612.asm
@@ -55,6 +55,7 @@ YM_FNTBL:	.DW	YM_RESET
 		.DW	YM_QUERY
 		.DW	YM_DURATION
 		.DW	YM_DEVICE
+		.DW	YM_BEEP
 ;
 #IF (($ - YM_FNTBL) != (SND_FNCNT * 2))
 	.ECHO	"*** INVALID SND FUNCTION TABLE ***\n"
@@ -197,6 +198,13 @@ YM_DEVICE:	LD	D,SNDDEV_YM2612		; D := DEVICE TYPE
 		RET
 ;
 ;------------------------------------------------------------------------------
+; Sound driver function - BEEP
+;------------------------------------------------------------------------------
+;
+YM_BEEP:
+	JP	SND_BEEP		; DEFER TO GENERIC CODE IN HBIOS
+;
+;------------------------------------------------------------------------------
 ; Sound driver function - RESET
 ; Initialize device. Set volume off. Reset volume and tone variables.
 ;------------------------------------------------------------------------------
diff --git a/Source/Images/Build.cmd b/Source/Images/Build.cmd
index c19abf07..8e71ce45 100644
--- a/Source/Images/Build.cmd
+++ b/Source/Images/Build.cmd
@@ -13,17 +13,17 @@ call BuildDisk.cmd zsdos fd wbw_fd144 ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd nzcom fd wbw_fd144 ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd cpm3 fd wbw_fd144 ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd zpm3 fd wbw_fd144 ..\zpm3\zpmldr.sys || exit /b
+call BuildDisk.cmd z3plus fd wbw_fd144 ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd ws4 fd wbw_fd144 || exit /b
 call BuildDisk.cmd qpm fd wbw_fd144 ..\qpm\qpm_wbw.sys || exit /b
-call BuildDisk.cmd z80asm hd wbw_fd144 || exit /b
-call BuildDisk.cmd aztecc hd wbw_fd144 || exit /b
-call BuildDisk.cmd hitechc hd wbw_fd144 || exit /b
-call BuildDisk.cmd tpascal hd wbw_fd144 || exit /b
-call BuildDisk.cmd bascomp hd wbw_fd144 || exit /b
-call BuildDisk.cmd fortran hd wbw_fd144 || exit /b
-call BuildDisk.cmd games hd wbw_fd144 || exit /b
-call BuildDisk.cmd cowgol hd wbw_fd144 || exit /b
-
+call BuildDisk.cmd z80asm fd wbw_fd144 || exit /b
+call BuildDisk.cmd aztecc fd wbw_fd144 || exit /b
+call BuildDisk.cmd hitechc fd wbw_fd144 || exit /b
+call BuildDisk.cmd tpascal fd wbw_fd144 || exit /b
+call BuildDisk.cmd bascomp fd wbw_fd144 || exit /b
+call BuildDisk.cmd fortran fd wbw_fd144 || exit /b
+call BuildDisk.cmd games fd wbw_fd144 || exit /b
+call BuildDisk.cmd cowgol fd wbw_fd144 || exit /b
 
 echo.
 echo Building Hard Disk Images (512 directory entry format)...
@@ -34,6 +34,7 @@ call BuildDisk.cmd zsdos hd wbw_hd512 ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd nzcom hd wbw_hd512 ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd cpm3 hd wbw_hd512 ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd zpm3 hd wbw_hd512 ..\zpm3\zpmldr.sys || exit /b
+call BuildDisk.cmd z3plus hd wbw_hd512 ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd ws4 hd wbw_hd512 || exit /b
 call BuildDisk.cmd dos65 hd wbw_hd512 ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd qpm hd wbw_hd512 ..\qpm\qpm_wbw.sys || exit /b
@@ -45,6 +46,8 @@ call BuildDisk.cmd bascomp hd wbw_hd512 || exit /b
 call BuildDisk.cmd fortran hd wbw_hd512 || exit /b
 call BuildDisk.cmd games hd wbw_hd512 || exit /b
 call BuildDisk.cmd cowgol hd wbw_hd512 || exit /b
+call BuildDisk.cmd msxroms1 hd wbw_hd512 || exit /b
+call BuildDisk.cmd msxroms2 hd wbw_hd512 || exit /b
 
 echo.
 echo Building Combo Disk (512 directory entry format) Image...
@@ -59,6 +62,7 @@ call BuildDisk.cmd zsdos hd wbw_hd1k ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd nzcom hd wbw_hd1k ..\zsdos\zsys_wbw.sys || exit /b
 call BuildDisk.cmd cpm3 hd wbw_hd1k ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd zpm3 hd wbw_hd1k ..\zpm3\zpmldr.sys || exit /b
+call BuildDisk.cmd z3plus hd wbw_hd1k ..\cpm3\cpmldr.sys || exit /b
 call BuildDisk.cmd ws4 hd wbw_hd1k || exit /b
 call BuildDisk.cmd qpm hd wbw_hd1k ..\qpm\qpm_wbw.sys || exit /b
 call BuildDisk.cmd z80asm hd wbw_hd1k || exit /b
@@ -69,6 +73,8 @@ call BuildDisk.cmd bascomp hd wbw_hd1k || exit /b
 call BuildDisk.cmd fortran hd wbw_hd1k || exit /b
 call BuildDisk.cmd games hd wbw_hd1k || exit /b
 call BuildDisk.cmd cowgol hd wbw_hd1k || exit /b
+call BuildDisk.cmd msxroms1 hd wbw_hd1k || exit /b
+call BuildDisk.cmd msxroms2 hd wbw_hd1k || exit /b
 
 if exist ..\BPBIOS\bp*.rel call BuildDisk.cmd bp hd wbw_hd1k ..\zsdos\zsys_wbw.sys || exit /b
 
diff --git a/Source/Images/BuildDisk.ps1 b/Source/Images/BuildDisk.ps1
index fd8745e3..9f870713 100644
--- a/Source/Images/BuildDisk.ps1
+++ b/Source/Images/BuildDisk.ps1
@@ -25,6 +25,7 @@ switch ($Format)
 		# 1.44MB Floppy Disk
 		$Desc = "1.44MB Floppy Disk"
 		$ImgFile = "fd144_${Disk}.img"
+		$CatFile = "fd144_${Disk}.cat"
 		$MediaID = 6
 		$Size = 1440KB
 	}
@@ -34,6 +35,7 @@ switch ($Format)
 		# 512 Directory Entry Hard Disk Format
 		$Desc = "Hard Disk (512 directory entry format)"
 		$ImgFile = "hd512_${Disk}.img"
+		$CatFile = "hd512_${Disk}.cat"
 		$MediaID = 4
 		$Size = 8MB + 128KB
 	}
@@ -43,6 +45,7 @@ switch ($Format)
 		# 1024 Directory Entry Hard Disk Format
 		$Desc = "Hard Disk (1024 directory entry format)"
 		$ImgFile = "hd1k_${Disk}.img"
+		$CatFile = "hd1k_${Disk}.cat"
 		$MediaID = 10
 		$Size = 8MB
 	}
@@ -96,6 +99,10 @@ if (Test-Path("${Type}_${Disk}.txt"))
 	}
 }
 
+$Cmd = "cpmls -f $Format -D $ImgFile"
+$Cmd
+Invoke-Expression $Cmd > $CatFile
+
 "Moving image $ImgFile into output directory..."
 
 Move-Item $ImgFile -Destination "..\..\Binary\" -Force
diff --git a/Source/Images/BuildMSX.cmd b/Source/Images/BuildMSX.cmd
new file mode 100644
index 00000000..a6dfb9d6
--- /dev/null
+++ b/Source/Images/BuildMSX.cmd
@@ -0,0 +1,10 @@
+@echo off
+setlocal
+
+echo.
+echo Building MSX Hard Disk Combo Image (1024 directory entry format)...
+echo.
+
+copy hd1k_prefix.dat ..\..\Binary\ || exit /b
+
+copy /b hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_msxroms1.img + ..\..\Binary\hd1k_msxroms2.img ..\..\Binary\hd1k_msxcombo.img || exit /b
diff --git a/Source/Images/Clean.cmd b/Source/Images/Clean.cmd
index 026d5786..e7c7472d 100644
--- a/Source/Images/Clean.cmd
+++ b/Source/Images/Clean.cmd
@@ -4,3 +4,4 @@ setlocal
 if exist *.tmp del *.tmp
 if exist *.img del *.img
 if exist *.sys del *.sys
+if exist *.cat del *.cat
diff --git a/Source/Images/Common/All/FLASH.COM b/Source/Images/Common/All/FLASH.COM
deleted file mode 100644
index b14d74e3..00000000
Binary files a/Source/Images/Common/All/FLASH.COM and /dev/null differ
diff --git a/Source/Images/Common/All/u10/ASCIIART.BAS b/Source/Images/Common/All/u10/ASCIIART.BAS
new file mode 100644
index 00000000..c1ecec7c
--- /dev/null
+++ b/Source/Images/Common/All/u10/ASCIIART.BAS
@@ -0,0 +1,20 @@
+10 for y=-12 to 12
+20 for x=-39 to 39
+30 ca=x*0.0458
+40 cb=y*0.08333
+50 a=ca
+60 b=cb
+70 for i=0 to 15
+80 t=a*a-b*b+ca
+90 b=2*a*b+cb
+100 a=t
+110 if (a*a+b*b)>4 then goto 200
+120 next i
+130 print " ";
+140 goto 210
+200 if i>9 then i=i+7
+205 print chr$(48+i);
+210 next x
+220 print
+230 next y
+999 system
diff --git a/Source/Images/Common/All/DDTZ.DOC b/Source/Images/Common/All/u10/DDTZ.DOC
similarity index 100%
rename from Source/Images/Common/All/DDTZ.DOC
rename to Source/Images/Common/All/u10/DDTZ.DOC
diff --git a/Source/Images/Common/All/FLASH.DOC b/Source/Images/Common/All/u10/FLASH.DOC
similarity index 100%
rename from Source/Images/Common/All/FLASH.DOC
rename to Source/Images/Common/All/u10/FLASH.DOC
diff --git a/Source/Images/Common/All/SUPERSUB.DOC b/Source/Images/Common/All/u10/SUPERSUB.DOC
similarity index 100%
rename from Source/Images/Common/All/SUPERSUB.DOC
rename to Source/Images/Common/All/u10/SUPERSUB.DOC
diff --git a/Source/Images/Common/All/UNARC.DOC b/Source/Images/Common/All/u10/UNARC.DOC
similarity index 100%
rename from Source/Images/Common/All/UNARC.DOC
rename to Source/Images/Common/All/u10/UNARC.DOC
diff --git a/Source/Images/Common/All/UNZIP.DOC b/Source/Images/Common/All/u10/UNZIP.DOC
similarity index 100%
rename from Source/Images/Common/All/UNZIP.DOC
rename to Source/Images/Common/All/u10/UNZIP.DOC
diff --git a/Source/Images/Common/All/ZDE.DOC b/Source/Images/Common/All/u10/ZDE.DOC
similarity index 100%
rename from Source/Images/Common/All/ZDE.DOC
rename to Source/Images/Common/All/u10/ZDE.DOC
diff --git a/Source/Images/Common/All/CRUNCH28.CFG b/Source/Images/Common/All/u14/CRUNCH28.CFG
similarity index 100%
rename from Source/Images/Common/All/CRUNCH28.CFG
rename to Source/Images/Common/All/u14/CRUNCH28.CFG
diff --git a/Source/Images/Common/All/CLRDIR.COM b/Source/Images/Common/All/u15/CLRDIR.COM
similarity index 100%
rename from Source/Images/Common/All/CLRDIR.COM
rename to Source/Images/Common/All/u15/CLRDIR.COM
diff --git a/Source/Images/Common/All/COMPARE.COM b/Source/Images/Common/All/u15/COMPARE.COM
similarity index 100%
rename from Source/Images/Common/All/COMPARE.COM
rename to Source/Images/Common/All/u15/COMPARE.COM
diff --git a/Source/Images/Common/All/CRUNCH.COM b/Source/Images/Common/All/u15/CRUNCH.COM
similarity index 100%
rename from Source/Images/Common/All/CRUNCH.COM
rename to Source/Images/Common/All/u15/CRUNCH.COM
diff --git a/Source/Images/Common/All/DDTZ.COM b/Source/Images/Common/All/u15/DDTZ.COM
similarity index 100%
rename from Source/Images/Common/All/DDTZ.COM
rename to Source/Images/Common/All/u15/DDTZ.COM
diff --git a/Source/Images/Common/All/EX.COM b/Source/Images/Common/All/u15/EX.COM
similarity index 100%
rename from Source/Images/Common/All/EX.COM
rename to Source/Images/Common/All/u15/EX.COM
diff --git a/Source/Images/Common/All/FDISK80.COM b/Source/Images/Common/All/u15/FDISK80.COM
similarity index 100%
rename from Source/Images/Common/All/FDISK80.COM
rename to Source/Images/Common/All/u15/FDISK80.COM
diff --git a/Source/Images/Common/All/FIND.COM b/Source/Images/Common/All/u15/FIND.COM
similarity index 100%
rename from Source/Images/Common/All/FIND.COM
rename to Source/Images/Common/All/u15/FIND.COM
diff --git a/Source/Images/Common/All/u15/FLASH.COM b/Source/Images/Common/All/u15/FLASH.COM
new file mode 100644
index 00000000..bd5f0eeb
Binary files /dev/null and b/Source/Images/Common/All/u15/FLASH.COM differ
diff --git a/Source/Images/Common/UTILS/GENHEX.COM b/Source/Images/Common/All/u15/GENHEX.COM
similarity index 100%
rename from Source/Images/Common/UTILS/GENHEX.COM
rename to Source/Images/Common/All/u15/GENHEX.COM
diff --git a/Source/Images/Common/UTILS/LS.COM b/Source/Images/Common/All/u15/LS.COM
similarity index 100%
rename from Source/Images/Common/UTILS/LS.COM
rename to Source/Images/Common/All/u15/LS.COM
diff --git a/Source/Images/Common/UTILS/LSWEEP.COM b/Source/Images/Common/All/u15/LSWEEP.COM
similarity index 100%
rename from Source/Images/Common/UTILS/LSWEEP.COM
rename to Source/Images/Common/All/u15/LSWEEP.COM
diff --git a/Source/Images/Common/All/MBASIC.COM b/Source/Images/Common/All/u15/MBASIC.COM
similarity index 100%
rename from Source/Images/Common/All/MBASIC.COM
rename to Source/Images/Common/All/u15/MBASIC.COM
diff --git a/Source/Images/Common/All/NULU.COM b/Source/Images/Common/All/u15/NULU.COM
similarity index 100%
rename from Source/Images/Common/All/NULU.COM
rename to Source/Images/Common/All/u15/NULU.COM
diff --git a/Source/Images/Common/All/PMARC.COM b/Source/Images/Common/All/u15/PMARC.COM
similarity index 100%
rename from Source/Images/Common/All/PMARC.COM
rename to Source/Images/Common/All/u15/PMARC.COM
diff --git a/Source/Images/Common/All/PMEXT.COM b/Source/Images/Common/All/u15/PMEXT.COM
similarity index 100%
rename from Source/Images/Common/All/PMEXT.COM
rename to Source/Images/Common/All/u15/PMEXT.COM
diff --git a/Source/Images/Common/All/RMXSUB1.COM b/Source/Images/Common/All/u15/RMXSUB1.COM
similarity index 100%
rename from Source/Images/Common/All/RMXSUB1.COM
rename to Source/Images/Common/All/u15/RMXSUB1.COM
diff --git a/Source/Images/Common/All/SUPERSUB.COM b/Source/Images/Common/All/u15/SUPERSUB.COM
similarity index 100%
rename from Source/Images/Common/All/SUPERSUB.COM
rename to Source/Images/Common/All/u15/SUPERSUB.COM
diff --git a/Source/Images/Common/All/TDLBASIC.COM b/Source/Images/Common/All/u15/TDLBASIC.COM
similarity index 100%
rename from Source/Images/Common/All/TDLBASIC.COM
rename to Source/Images/Common/All/u15/TDLBASIC.COM
diff --git a/Source/Images/Common/All/UNARC.COM b/Source/Images/Common/All/u15/UNARC.COM
similarity index 100%
rename from Source/Images/Common/All/UNARC.COM
rename to Source/Images/Common/All/u15/UNARC.COM
diff --git a/Source/Images/Common/All/UNCR.COM b/Source/Images/Common/All/u15/UNCR.COM
similarity index 100%
rename from Source/Images/Common/All/UNCR.COM
rename to Source/Images/Common/All/u15/UNCR.COM
diff --git a/Source/Images/Common/All/UNZIP.COM b/Source/Images/Common/All/u15/UNZIP.COM
similarity index 100%
rename from Source/Images/Common/All/UNZIP.COM
rename to Source/Images/Common/All/u15/UNZIP.COM
diff --git a/Source/Images/Common/All/WDATE.COM b/Source/Images/Common/All/u15/WDATE.COM
similarity index 100%
rename from Source/Images/Common/All/WDATE.COM
rename to Source/Images/Common/All/u15/WDATE.COM
diff --git a/Source/Images/Common/All/XSUB1.COM b/Source/Images/Common/All/u15/XSUB1.COM
similarity index 100%
rename from Source/Images/Common/All/XSUB1.COM
rename to Source/Images/Common/All/u15/XSUB1.COM
diff --git a/Source/Images/Common/All/ZAP.COM b/Source/Images/Common/All/u15/ZAP.COM
similarity index 100%
rename from Source/Images/Common/All/ZAP.COM
rename to Source/Images/Common/All/u15/ZAP.COM
diff --git a/Source/Images/Common/All/ZDE.COM b/Source/Images/Common/All/u15/ZDE.COM
similarity index 100%
rename from Source/Images/Common/All/ZDE.COM
rename to Source/Images/Common/All/u15/ZDE.COM
diff --git a/Source/Images/Common/All/ZDENST.COM b/Source/Images/Common/All/u15/ZDENST.COM
similarity index 100%
rename from Source/Images/Common/All/ZDENST.COM
rename to Source/Images/Common/All/u15/ZDENST.COM
diff --git a/Source/Images/Common/All/ZMRX.COM b/Source/Images/Common/All/u15/ZMRX.COM
similarity index 100%
rename from Source/Images/Common/All/ZMRX.COM
rename to Source/Images/Common/All/u15/ZMRX.COM
diff --git a/Source/Images/Common/All/ZMTX.COM b/Source/Images/Common/All/u15/ZMTX.COM
similarity index 100%
rename from Source/Images/Common/All/ZMTX.COM
rename to Source/Images/Common/All/u15/ZMTX.COM
diff --git a/Source/Images/d_nzcom/u0/DOCFILES.LBR b/Source/Images/Common/NZ3PLUS/u10/DOCFILES.LBR
similarity index 100%
rename from Source/Images/d_nzcom/u0/DOCFILES.LBR
rename to Source/Images/Common/NZ3PLUS/u10/DOCFILES.LBR
diff --git a/Source/Images/d_nzcom/u0/HLPFILES.LBR b/Source/Images/Common/NZ3PLUS/u10/HLPFILES.LBR
similarity index 100%
rename from Source/Images/d_nzcom/u0/HLPFILES.LBR
rename to Source/Images/Common/NZ3PLUS/u10/HLPFILES.LBR
diff --git a/Source/Images/d_nzcom/u0/LSH.WZ b/Source/Images/Common/NZ3PLUS/u10/LSH.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/LSH.WZ
rename to Source/Images/Common/NZ3PLUS/u10/LSH.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ.INF b/Source/Images/Common/NZ3PLUS/u10/TCJ.INF
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ.INF
rename to Source/Images/Common/NZ3PLUS/u10/TCJ.INF
diff --git a/Source/Images/d_nzcom/u0/TCJ25.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ25.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ25.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ25.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ26.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ26.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ26.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ26.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ27.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ27.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ27.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ27.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ28.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ28.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ28.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ28.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ29.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ29.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ29.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ29.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ30.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ30.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ30.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ30.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ31UPD.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ31UPD.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ31UPD.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ31UPD.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ32.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ32.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ32.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ32.WZ
diff --git a/Source/Images/d_nzcom/u0/TCJ33UPD.WZ b/Source/Images/Common/NZ3PLUS/u10/TCJ33UPD.WZ
similarity index 100%
rename from Source/Images/d_nzcom/u0/TCJ33UPD.WZ
rename to Source/Images/Common/NZ3PLUS/u10/TCJ33UPD.WZ
diff --git a/Source/Images/d_nzcom/u0/ZFILEB38.LZT b/Source/Images/Common/NZ3PLUS/u10/ZFILEB38.LZT
similarity index 100%
rename from Source/Images/d_nzcom/u0/ZFILEB38.LZT
rename to Source/Images/Common/NZ3PLUS/u10/ZFILEB38.LZT
diff --git a/Source/Images/d_nzcom/u0/ZHELPERS.LZT b/Source/Images/Common/NZ3PLUS/u10/ZHELPERS.LZT
similarity index 100%
rename from Source/Images/d_nzcom/u0/ZHELPERS.LZT
rename to Source/Images/Common/NZ3PLUS/u10/ZHELPERS.LZT
diff --git a/Source/Images/d_nzcom/u0/ZNODES66.LZT b/Source/Images/Common/NZ3PLUS/u10/ZNODES66.LZT
similarity index 100%
rename from Source/Images/d_nzcom/u0/ZNODES66.LZT
rename to Source/Images/Common/NZ3PLUS/u10/ZNODES66.LZT
diff --git a/Source/Images/d_nzcom/u0/ZSYSTEM.IZF b/Source/Images/Common/NZ3PLUS/u10/ZSYSTEM.IZF
similarity index 100%
rename from Source/Images/d_nzcom/u0/ZSYSTEM.IZF
rename to Source/Images/Common/NZ3PLUS/u10/ZSYSTEM.IZF
diff --git a/Source/Images/d_nzcom/u0/CONFIG.LBR b/Source/Images/Common/NZ3PLUS/u14/CONFIG.LBR
similarity index 100%
rename from Source/Images/d_nzcom/u0/CONFIG.LBR
rename to Source/Images/Common/NZ3PLUS/u14/CONFIG.LBR
diff --git a/Source/Images/d_nzcom/u0/ARUNZ.COM b/Source/Images/Common/NZ3PLUS/u15/ARUNZ.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/ARUNZ.COM
rename to Source/Images/Common/NZ3PLUS/u15/ARUNZ.COM
diff --git a/Source/Images/d_nzcom/u0/CLEDINST.COM b/Source/Images/Common/NZ3PLUS/u15/CLEDINST.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/CLEDINST.COM
rename to Source/Images/Common/NZ3PLUS/u15/CLEDINST.COM
diff --git a/Source/Images/d_nzcom/u0/CLEDSAVE.COM b/Source/Images/Common/NZ3PLUS/u15/CLEDSAVE.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/CLEDSAVE.COM
rename to Source/Images/Common/NZ3PLUS/u15/CLEDSAVE.COM
diff --git a/Source/Images/d_nzcom/u0/CPSET.COM b/Source/Images/Common/NZ3PLUS/u15/CPSET.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/CPSET.COM
rename to Source/Images/Common/NZ3PLUS/u15/CPSET.COM
diff --git a/Source/Images/d_nzcom/u0/FCP.LBR b/Source/Images/Common/NZ3PLUS/u15/FCP.LBR
similarity index 100%
rename from Source/Images/d_nzcom/u0/FCP.LBR
rename to Source/Images/Common/NZ3PLUS/u15/FCP.LBR
diff --git a/Source/Images/d_nzcom/u0/FF.COM b/Source/Images/Common/NZ3PLUS/u15/FF.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/FF.COM
rename to Source/Images/Common/NZ3PLUS/u15/FF.COM
diff --git a/Source/Images/d_nzcom/u0/IF.COM b/Source/Images/Common/NZ3PLUS/u15/IF.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/IF.COM
rename to Source/Images/Common/NZ3PLUS/u15/IF.COM
diff --git a/Source/Images/d_nzcom/u0/JETLDR.COM b/Source/Images/Common/NZ3PLUS/u15/JETLDR.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/JETLDR.COM
rename to Source/Images/Common/NZ3PLUS/u15/JETLDR.COM
diff --git a/Source/Images/Common/NZ3PLUS/u15/LBRHELP.COM b/Source/Images/Common/NZ3PLUS/u15/LBRHELP.COM
new file mode 100644
index 00000000..35f0b6fe
Binary files /dev/null and b/Source/Images/Common/NZ3PLUS/u15/LBRHELP.COM differ
diff --git a/Source/Images/d_nzcom/u0/LDIR.COM b/Source/Images/Common/NZ3PLUS/u15/LDIR.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LDIR.COM
rename to Source/Images/Common/NZ3PLUS/u15/LDIR.COM
diff --git a/Source/Images/d_nzcom/u0/LPUT.COM b/Source/Images/Common/NZ3PLUS/u15/LPUT.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LPUT.COM
rename to Source/Images/Common/NZ3PLUS/u15/LPUT.COM
diff --git a/Source/Images/d_nzcom/u0/LSH-HELP.COM b/Source/Images/Common/NZ3PLUS/u15/LSH-HELP.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LSH-HELP.COM
rename to Source/Images/Common/NZ3PLUS/u15/LSH-HELP.COM
diff --git a/Source/Images/d_nzcom/u0/LSH.COM b/Source/Images/Common/NZ3PLUS/u15/LSH.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LSH.COM
rename to Source/Images/Common/NZ3PLUS/u15/LSH.COM
diff --git a/Source/Images/d_nzcom/u0/LSHINST.COM b/Source/Images/Common/NZ3PLUS/u15/LSHINST.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LSHINST.COM
rename to Source/Images/Common/NZ3PLUS/u15/LSHINST.COM
diff --git a/Source/Images/d_nzcom/u0/LX.COM b/Source/Images/Common/NZ3PLUS/u15/LX.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/LX.COM
rename to Source/Images/Common/NZ3PLUS/u15/LX.COM
diff --git a/Source/Images/d_nzcom/u0/NAME.COM b/Source/Images/Common/NZ3PLUS/u15/NAME.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/NAME.COM
rename to Source/Images/Common/NZ3PLUS/u15/NAME.COM
diff --git a/Source/Images/d_nzcom/u0/PATH.COM b/Source/Images/Common/NZ3PLUS/u15/PATH.COM
similarity index 100%
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deleted file mode 100644
index 84a28f89..00000000
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+++ /dev/null
@@ -1,369 +0,0 @@
-                              BBC BASIC (Z80)
-
-                         Generic CP/M Version 3.00
-
-                    (C) Copyright R.T.Russell 1982-1999
-
-1. INTRODUCTION
-
-   BBC  BASIC (Z80) has been designed to be as compatible as  possible  with 
-   Version 4 of the 6502 BBC BASIC resident in the BBC Micro Master  series.  
-   The language syntax is not always identical to that of the 6502  version, 
-   but in most cases the Z80 version is more tolerant.
-
-   BBC  BASIC (Z80) is as machine independent as possible and, as  supplied, 
-   it  will  run  on any CP/M 2.2 (or later) system using  a  Z80  processor 
-   (checks  are carried out to ensure that the processor is a Z80  and  that 
-   the version of CP/M is at least 2.2).  It is minimally configured for  an 
-   ADM3a-compatible VDU.
-
-   Few  CP/M  systems  offer  colour graphics of  the  quality  provided  as 
-   standard  on  the BBC Microcomputer, and no software can  provide  colour 
-   high-resolution graphics from a monochrome character-orientated computer.  
-   However,  many CP/M system users are interested in the  advanced  program 
-   structures  available from BBC BASIC and, within the limitations  of  the 
-   host  computer, BBC BASIC (Z80) provides the programming  structures  and 
-   the non-graphic commands and functions specified for BBC BASIC.
-
-   In order to make full use of the facilities available in BBC BASIC  (Z80) 
-   it is necessary to install a small patch to adapt it to the  capabilities 
-   of  the  host  computer.  The source code of the  patch  present  in  the 
-   distribution version is supplied as BBCDIST.MAC.
-
-   This  documentation  should be read in conjunction with  a  standard  BBC 
-   BASIC  manual.  Only those features which differ from the standard  Acorn 
-   versions are documented here.
-
-
-2. MEMORY UTILISATION
-
-   BBC  BASIC (Z80) requires about 16 Kbytes of code space, resulting  in  a 
-   value  of  PAGE  of about &3E00.  The remainder of  the  user  memory  is 
-   available  for BASIC programs, variables (heap) and stack.  Depending  on 
-   the system configuration, HIMEM can have a value up to &FE00.
-
-
-3. COMMANDS, STATEMENTS AND FUNCTIONS
-
-   The syntax of BASIC commands,  statements and functions is in most  cases 
-   identical  to  that  of  the  BBC  Micro  version  (BASIC  4).   The  few 
-   differences are documented here:
-
-   ADVAL
-   This function is not implemented.
-
-   CALL
-   CALL  sets  up a table in RAM containing details of the  parameters;  the 
-   processor's  IX register is set to the address of this  parameter  table.  
-   The other processor registers are initialised as follows:
-
-               A is initialised to the least significant byte of A%
-               B is initialised to the least significant byte of B%
-               C is initialised to the least significant byte of C%
-               D is initialised to the least significant byte of D%
-               E is initialised to the least significant byte of E%
-               F is initialised to the least significant byte of F%
-               H is initialised to the least significant byte of H%
-               L is initialised to the least significant byte of L%
-
-   The parameter types are:
-
-          Code No.       Parameter Type      Example
-              0          Byte (8 bits)       ?A%
-              4          Word (32 bits)      !A% or A%
-              5          Real (40 bits)      A
-            128          Fixed string        $A%
-            129          Movable string      A$
-
-   On  entry  to the subroutine the parameter table contains  the  following 
-   values:
-
-          Number of parameters     1 byte (at IX)
-
-          Parameter type           1 byte (at IX+1)
-          Parameter address        2 bytes (at IX+2, IX+3, LSB first)
-
-          Parameter type           ) repeated as often as necessary
-          Parameter address        )
-
-   Except  in  the case of a movable string (normal  string  variable),  the 
-   parameter  address  given is the absolute address at which  the  item  is 
-   stored.  In the case of movable strings (type 129) it is the address of a 
-   4-byte parameter block containing the current length, the maximum  length 
-   and the start address of the string (LSB first) in that order.
-
-   Integer  variables  are stored in twos complement form with  their  least 
-   significant byte first.
-
-   Fixed  strings are stored as the characters of the string followed  by  a 
-   carriage return (&0D).
-
-   Floating point variables are stored in binary floating point format  with 
-   their least significant byte first; the fifth byte is the exponent.   The 
-   mantissa  is  stored as a binary fraction in sign and  magnitude  format.  
-   Bit 7 of the most significant byte is the sign bit and, for the  purposes 
-   of calculating the magnitude of the number, this bit is assumed to be set 
-   to  one.  The exponent is stored as an integer in excess 127  format  (to 
-   find the exponent subtract 127 from the value in the fifth byte).
-
-   If the exponent byte of a floating point number is zero, the number is an 
-   integer stored in integer format in the mantissa bytes.  Thus an  integer 
-   can be represented in two different ways in a real variable.  For example 
-   the value +5 can be stored as:
-
-            05 00 00 00 00         Integer 5
-            00 00 00 20 82         (0.5 + 0.125) * 2^3
-
-   COLOUR (COLOR)
-   This statement is not implemented.
-
-   DRAW
-   This statement is not implemented.
-
-   EDIT
-   A command to edit or concatenate and edit the specified program  line(s).  
-   The specified lines (including their line numbers) are listed as a single 
-   line.   By changing only the line number you can use EDIT to duplicate  a 
-   line.
-
-     EDIT 230
-     EDIT 200,230
-
-   The  following control functions are active both in the EDIT mode and  in 
-   the immediate entry mode (i.e. at the BASIC prompt):
-
-     Move the cursor one character position to the left
-     Move the cursor one character position to the right
-     Move the cursor to the start of the line
-     Move the cursor to the end of the line
-     Insert a space at the current cursor position
-     Delete the character at the current cursor position
-     Backspace and delete the character to the left of the cursor
-     Delete all characters to the left of the cursor
-     Delete all characters from the cursor to the end of the line
-
-   The choice of which keys activate these functions is made when BBC  BASIC 
-   is configured for a particular system.  The distribution version uses ^H, 
-   ^I, ^K, ^J, ^A, ^E, DEL (&7F), ^L and ^X.
-
-   To exit EDIT mode and replace the edited line, type RETURN (ENTER).
-
-   To abort the edit and leave the line unchanged, type ESCape.
-
-   ENVELOPE
-   This statement is not implemented.
-
-   GET
-   This  function  waits for a character to be typed at  the  keyboard,  and 
-   returns the ASCII code.
-
-   GET can also be used to read data from a processor I/O port; full  16-bit 
-   port addressing is available:
-
-          N% = GET(X%) : REM input from port X%
-
-   INKEY
-   This function waits for a specified maximum number of centiseconds for  a 
-   character to be typed at the keyboard.  If no character is typed in  that 
-   time, the value -1 is returned.  In the distribution version the delay is 
-   determined by a simple software timing loop, and may be very  inaccurate.  
-   The customisation patch allows this to be adjusted to suit the system  in 
-   use.
-
-   INPUT#
-   The format of data files is different from that used by the BBC Micro, in 
-   part  to improve compatibility with standard CP/M files.  Numeric  values 
-   are  stored  as five bytes in the format documented under  CALL;  if  the 
-   fifth  byte is zero the value is an integer.  Strings are stored  as  the 
-   characters  of the string (in the correct order!) followed by a  carriage 
-   return (&0D).
-
-   MODE
-   This statement is not implemented.
-
-   MOVE
-   This statement is not implemented.
-
-   PLOT
-   This statement is not implemented.
-
-   POINT
-   This function is not implemented.
-
-   PRINT#
-   The format of data files is different from that used by the BBC Micro, in 
-   part  to improve compatibility with standard CP/M files.  Numeric  values 
-   are  stored  as five bytes in the format documented under  CALL;  if  the 
-   fifth  byte is zero the value is an integer.  Strings are stored  as  the 
-   characters  of the string (in the correct order!) followed by a  carriage 
-   return (&0D).
-
-   PUT
-   A  statement to output data to a processor port.  Full 16-bit  addressing 
-   is available.
-
-          PUT A%,N% : REM Output N% to port A%
-
-   SOUND
-   This statement is not implemented.
-
-   TIME
-   This pseudo-variable is not implemented in the distribution version,  but 
-   can be supported by means of the customisation patch.  See BBCDIST.MAC.
-
-   USR
-   As with CALL, the processor's registers are initialised as follows:
-
-               A is initialised to the least significant byte of A%
-               B is initialised to the least significant byte of B%
-               C is initialised to the least significant byte of C%
-               D is initialised to the least significant byte of D%
-               E is initialised to the least significant byte of E%
-               F is initialised to the least significant byte of F%
-               H is initialised to the least significant byte of H%
-               L is initialised to the least significant byte of L%
-
-   USR returns a 32-bit integer result composed of the processor's H, L,  H' 
-   and L' registers, with H being the most significant.
-
-
-4. RESIDENT Z80 ASSEMBLER
-
-   The  in-line  assembler is accessed in exactly the same way as  the  6502 
-   assembler  in  the BBC Micro version of BBC BASIC.  That is,  '['  enters 
-   assembler mode and ']' exits assembler mode.
-
-   All  standard  Zilog  mnemonics are accepted: ADD, ADC and  SBC  must  be 
-   followed by A or HL.  For example, ADD A,C is accepted but ADD C is  not.  
-   However, the brackets around the port number in IN and OUT are  optional.  
-   Thus  both OUT (5),A and OUT 5,A are accepted.  The instruction IN  F,(C) 
-   is not accepted, but the equivalent code is produced from IN (HL),C
-
-   The pseudo-ops DEFB, DEFW and DEFM are included.  DEFM works like EQUS in 
-   the 6502 version.
-
-
-5. OPERATING SYSTEM INTERFACE
-
-   The   following   resident  Operating  System   ("star")   commands   are 
-   implemented.  They may be accessed directly (e.g. *BYE) or via the  OSCLI 
-   statement (OSCLI "BYE").
-
-   Control characters, lower-case characters, DEL and quotation marks may be 
-   incorporated in filenames by using the 'escape' character '|'.   However, 
-   there is no equivalent to the BBC Microcomputer's '|!' to set bit 7.
-
-   *BYE
-   Returns control to the operating system (CP/M).
-
-   *CPM
-   Same as *BYE.
-
-   *. [filespec]
-   *DIR [filespec]
-   List  the  files which match the (optional) ambiguous  filespec.  If  the 
-   filespec is omitted, all .BBC files are listed:
-               *DIR           List all .BBC files on the disk
-               *DIR B:*.*     List all files on disk B:
-               *.*.*          List all files on the current disk
-
-   *DRIVE d:
-   Select drive d as the default drive for subsequent disk operations.
-
-   *ERA filespec
-   Erase (delete) the specified disk file or files.  The extension  defaults 
-   to .BBC if omitted.
-
-   *ESC [ON|OFF]
-   *ESC OFF disables the abort action of the ESCape key; after *ESC OFF  the 
-   ESCape  key  simply returns the ASCII code ESC (27).  *ESC ON,  or  *ESC, 
-   restores the normal action of the ESCape key.
-
-   *EXEC filespec
-   Accept  console  input  from  the  specified file  instead  of  from  the 
-   keyboard. If the extension is omitted, .BBC is assumed.
-
-   *LOAD filespec aaaa
-   Loads  the specified file into memory at address aaaa. The  load  address 
-   must be specified. If the extension is omitted, .BBC is assumed.
-
-   *OPT [n]
-   Select  the destination for console output characters.  The value n is in 
-   the range 0 to 2, as follows:
-               
-          0    Send characters to the console output
-          1    Send characters to the auxiliary output
-          2    Send characters to the printer (list) output
-
-   *REN newfile=oldfile
-   *RENAME newfile=oldfile
-   Renames  'oldfile'  as 'newfile'.  If the extension is omitted,  .BBC  is 
-   assumed.
-
-   *RESET
-   Rest the disk system (CP/M function 13).  This command does not close any 
-   files  nor does it perform any other housekeeping function.   You  should 
-   use *RESET after you have changed a disk.
-
-   *SAVE filespec aaaa bbbb
-   *SAVE filespec aaaa +llll
-   This command saves a specified range of memory to disk. The address range 
-   is  specified either as start (aaaa) and end+1 (bbbb) or as start  (aaaa) 
-   and length (llll). If the extension is omitted, .BBC is assumed.
-
-   *SPOOL [filespec]
-   Copy all subsequent console output to the specified file. If the filename 
-   is omitted,  any current spool file is closed and spooling is terminated. 
-   If the extension is omitted, .BBC is assumed.
-
-   *TYPE filespec
-   Type the specified file to the screen. If the extension is omitted,  .BBC 
-   is assumed.
-
-   *| comment
-   This is a comment line. Anything following the | is ignored.
-
-
-6. ERROR MESSAGES AND CODES
-
-   Untrappable:
-
-          No room                       RENUMBER space
-          Silly                         LINE space
-          Sorry                         Bad program
-
-   Trappable - BASIC:
-
-      1   Out of range             24   Exp range
-      2                            25   
-      3                            26   No such variable
-      4   Mistake                  27   Missing )
-      5   Missing ,                28   Bad HEX
-      6   Type mismatch            29   No such FN/PROC
-      7   No FN                    30   Bad call
-      8                            31   Arguments
-      9   Missing "                32   No FOR
-     10   Bad DIM                  33   Can't match FOR
-     11   DIM space                34   FOR variable
-     12   Not LOCAL                35
-     13   No PROC                  36   No TO
-     14   Array                    37
-     15   Subscript                38   No GOSUB
-     16   Syntax error             39   ON syntax
-     17   Escape                   40   ON range
-     18   Division by zero         41   No such line
-     19   String too long          42   Out of DATA
-     20   Too big                  43   No REPEAT
-     21   -ve root                 44
-     22   Log range                45   Missing #
-     23   Accuracy lost
-
-   Trappable - OS:
-
-     190  Directory full           214  File not found
-     192  Too many open files      222  Channel
-     196  File exists              253  Bad string
-     198  Disk full                254  Bad command
-     200  Close error              255  CP/M error
-     204  Bad name
-
\ No newline at end of file
diff --git a/Source/Images/Common/UTILS/BBCDIST.MAC b/Source/Images/Common/UTILS/BBCDIST.MAC
deleted file mode 100644
index 6df1c9a6..00000000
--- a/Source/Images/Common/UTILS/BBCDIST.MAC
+++ /dev/null
@@ -1,225 +0,0 @@
-	TITLE	BBCDIST.Z80 (C) R.T.RUSSELL 1982
-;
-;BBC BASIC (Z80) - CP/M VERSION 2.30 & 3.00
-;(C) COPYRIGHT R.T.RUSSELL, 1982.
-;ALL RIGHTS RESERVED.
-;
-;THIS PROGRAM ALLOWS THE USER TO ADAPT BBC BASIC TO THE
-;PARTICULAR CHARACTERISTICS OF HIS SYSTEM HARDWARE ETC.
-;
-;THE PROGRAM RESIDES AT 100H FOR EASE OF LOADING.
-;*** IT MUST NOT EXCEED 256 BYTES IN TOTAL LENGTH ***
-;
-;PLEASE NOTE THAT A Z80 PROCESSOR AND CP/M VERSION 2.2
-;OR LATER ARE REQUIRED.
-;
-;R.T.RUSSELL, 11-03-1984, 03-05-1989
-;ALTERNATE REGISTERS SAVED FOR BDOS CALL, 04-06-2000
-;
-CPM	EQU	5
-COLD	EQU	200H
-;
-	GLOBAL	CLRSCN
-	GLOBAL	PUTCSR
-	GLOBAL	GETCSR
-	GLOBAL	PUTIME
-	GLOBAL	GETIME
-	GLOBAL	GETKEY
-	GLOBAL	BYE
-;
-	ASEG
-	ORG	100H
-;
-;JUMP TABLE - BASIC makes calls to hardware-dependent
-;features via this table:
-;
-	JP	INIT
-CLRSCN:	JP	CLS		;CLEAR SCREEN
-PUTCSR:	JP	PCSR		;SET CURSOR POSN.
-GETCSR:	JP	GCSR		;READ CURSOR POSN.
-PUTIME:	JP	PTIME		;SET ELAPSED TIME
-GETIME:	JP	GTIME		;READ ELAPSED TIME
-GETKEY:	JP	INKEY		;READ KEY (TIME LIMIT)
-BYE:	JP	REBOOT		;RETURN TO CP/M
-;
-;THE CODE WHICH FOLLOWS IS A SKELETON VERSION SUITABLE
-;FOR ANY CP/M SYSTEM.  IT HAS BEEN CONFIGURED FOR A VT100 TO SOME DEGREE
-;BY PETER SCHORN.
-;
-
-PRSTR	EQU	9
-
-;INIT	- Perform hardware initialisation (if any).
-;
-INIT:	LD	A,2
-	INC	A
-	LD	DE,NOTZ80
-	JP	PE,FAIL
-	LD	C,12
-	CALL	BDOS
-	OR	A
-	LD	DE,NOTV2
-	JP	NZ,COLD
-FAIL:	LD	C,PRSTR
-	CALL	BDOS
-	RST	0
-;
-NOTZ80:	DEFB	'Wrong processor$'
-NOTV2:	DEFB	'Wrong CP/M version$'
-;
-;REBOOT	- Switch off interrupts and return to CP/M
-;
-REBOOT:	RST	0
-;
-;GTIME	- Read elapsed-time clock.
-;  	  Outputs: DEHL = elapsed time (centiseconds)
-; 	  Destroys: A,D,E,H,L,F
-;
-GTIME:	LD	DE,0
-	LD	HL,0
-	RET
-;
-;PTIME	- Load elapsed-time clock.
-;   	  Inputs: DEHL = time to load (centiseconds)
-; 	  Destroys: A,D,E,H,L,F
-;
-PTIME:	RET
-;
-;CLS	- Clear screen for VT100.
-; 	  Destroys: A,D,E,H,L,F
-;
-CLS:	PUSH	BC		; save BC
-	LD	C,PRSTR		; command for output string
-	LD	DE,CLSSTR	; start address of string
-	CALL	BDOS		; output to terminal
-	POP	BC		; restore BC
-	RET
-CLSSTR:	DEFB	27,'[2J$'	; VT100 string for clear screen
-
-;
-;INKEY	- Sample keyboard with specified wait.
-;	  This version uses a simple software timing loop.
-;	  Modify to use hardware/interrupt timer if available.
-;   	  Inputs: HL = Time to wait (centiseconds)
-;  	  Outputs: Carry reset indicates time-out.
-;                  If carry set, A = character typed.
-; 	  Destroys: A,D,E,H,L,F
-;
-INKEY:	PUSH	BC
-	PUSH	HL
-	LD	C,6
-	LD	E,0FFH
-	CALL	BDOS		;CONSOLE INPUT
-	POP	HL
-	POP	BC
-	OR	A
-	SCF
-	RET	NZ		;KEY PRESSED
-	OR	H
-	OR	L
-	RET	Z		;TIME-OUT
-	PUSH	BC
-	LD	A,-1
-	LD	BC,1250		;DELAY CONSTANT
-WAIT:	DEC	BC
-	CP	B
-	JP	NZ,WAIT		;WAIT FOR APPROX 10ms
-	POP	BC
-	DEC	HL
-	JR	INKEY
-;
-;PCSR	- Move cursor to specified position.
-;   	  Inputs: DE = horizontal position (LHS=0)
-;                 HL = vertical position (TOP=0)
-; called by TAB(column, row)
-PCSR:	LD	B,L		; vertical = line (row)
-	CALL	CONV		; normalized and convert to decimal
-	LD	(LIN),HL	; and store into string
-	LD	B,E		; horizontal = column
-	CALL	CONV		; normalized and convert to decimal
-	LD	(COL),HL	; and store into string
-	LD	C,PRSTR		; output string command
-	LD	DE,CURS		; start of string
-	JR	BDOS		; output string to terminal
-
-; VT100 sequence for cursor positioning
-CURS:	DEFB	27, '['
-LIN:	DEFW	0		; high byte, low byte for decimal line
-	DEFB	';'
-COL:	DEFW	0		; high byte, low byte for decimal column
-	DEFB	'H$'
-
-; convert binary B (0 <= B < 99, not checked) into B+1 in decimal.
-; L = upper byte, H = lower byte. ready for LD (...), HL
-; destroys A, B, L, H
-; optimized for space over time
-CONV:	INC	B		; normalize, home in VT100 is (1,1)
-	LD	A,'0'		; A is counter for low byte of result
-	LD	L,A		; L is counter for high byte of result
-CONVLP:	INC	A		; now B times increment AL in decimal
-	CP	'9'+1		; low byte overflow?
-	JR	NZ,CONT		; no, continue incrementing
-	LD	A,'0'		; reset low byte
-	INC	L		; and increment high byte
-CONT:	DJNZ	CONVLP		; B times
-	LD	H,A		; put low byte into right place
-	RET
-
-
-;BDOS   - Save the IX and IY and alternate registers
-;         before performing a CP/M function call.
-;
-BDOS:	PUSH	IX
-	PUSH	IY
-        EXX
-        PUSH    BC
-        PUSH    DE
-        PUSH    HL
-        EXX
-        EX      AF,AF'
-        PUSH    AF
-        EX      AF,AF'
-	CALL	CPM
-        EX      AF,AF'
-        POP     AF
-        EX      AF,AF'
-        EXX
-        POP     HL
-        POP     DE
-        POP     BC
-        EXX
-	POP	IY
-	POP	IX
-	RET
-
-
-;GCSR	- Return cursor coordinates.
-;   	  Outputs:  DE = X coordinate (POS)
-;                   HL = Y coordinate (VPOS)
-;  	  Destroys: A,D,E,H,L,F
-;
-GCSR:	LD	DE,0
-	LD	HL,0
-	RET
-;
-	IF	$ GT 1F4H
-	ERROR	'INSUFFICIENT SPACE'
-	ENDIF
-;
-	ORG	1F4H
-;
-	DEFB	80		;WIDTH
-	DEFB	'E' AND 1FH	;CURSOR UP
-	DEFB	'X' AND 1FH	;CURSOR DOWN
-	DEFB	'A' AND 1FH	;START OF LINE
-	DEFB	'F' AND 1FH	;END OF LINE
-	DEFB	'T' AND 1FH	;DELETE TO END OF LINE
-	DEFB	'H' AND 1FH	;BACKSPACE
-	DEFB	'U' AND 1FH	;CANCEL LINE
-	DEFB	'S' AND 1FH	;CURSOR LEFT
-	DEFB	'D' AND 1FH	;CURSOR RIGHT
-	DEFB	'G' AND 1FH	;DELETE CHARACTER
-	DEFB	'V' AND 1FH	;INSERT CHARACTER
-;
-FIN:	END
-
\ No newline at end of file
diff --git a/Source/Images/Common/UTILS/BBCDIST.SUB b/Source/Images/Common/UTILS/BBCDIST.SUB
deleted file mode 100644
index d438ba7b..00000000
--- a/Source/Images/Common/UTILS/BBCDIST.SUB
+++ /dev/null
@@ -1,13 +0,0 @@
-; patch BBCBASIC with BBCDIST
-; need M80 and L80
-xsub
-m80 =bbcdist/z
-l80 bbcdist,bbcdist/n/e
-ddt bbcbasic.org
-ibbcdist.com
-r
-g0
-save 58 bbcbasic.com
-era bbcdist.rel
-era bbcdist.com
-
\ No newline at end of file
diff --git a/Source/Images/d_zpm3/u14/COPY.CFG b/Source/Images/Common/Z/u14/COPY.CFG
similarity index 100%
rename from Source/Images/d_zpm3/u14/COPY.CFG
rename to Source/Images/Common/Z/u14/COPY.CFG
diff --git a/Source/Images/d_zpm3/u14/ZCNFG24.CFG b/Source/Images/Common/Z/u14/ZCNFG24.CFG
similarity index 100%
rename from Source/Images/d_zpm3/u14/ZCNFG24.CFG
rename to Source/Images/Common/Z/u14/ZCNFG24.CFG
diff --git a/Source/Images/d_zsdos/u0/COPY.COM b/Source/Images/Common/Z/u15/COPY.COM
similarity index 100%
rename from Source/Images/d_zsdos/u0/COPY.COM
rename to Source/Images/Common/Z/u15/COPY.COM
diff --git a/Source/Images/d_zsdos/u0/ZCNFG.COM b/Source/Images/Common/Z/u15/ZCNFG.COM
similarity index 100%
rename from Source/Images/d_zsdos/u0/ZCNFG.COM
rename to Source/Images/Common/Z/u15/ZCNFG.COM
diff --git a/Source/Images/Common/Z3/u10/ALIAS.HLP b/Source/Images/Common/Z3/u10/ALIAS.HLP
new file mode 100644
index 00000000..b41d8e90
--- /dev/null
+++ b/Source/Images/Common/Z3/u10/ALIAS.HLP
@@ -0,0 +1,167 @@
+;
+
+                  The ZCPR3 ALIAS Facility
+
+                   A - 
The ALIAS Command
+
+                     E - 
ALIAS Examples
+
+               S - 
Summary of ALIAS Variables
+
+:A
+
+
Command:  ALIAS 1.1
+
+
Syntax:
+
+     ALIAS          <-- Define New Command
+or
+     ALIAS dir:ufn  <-- Redefine Old Command
+
+
Function:
+
+     Th� ALIA� facilit� i� th� scrip� expansio� utilit�� o� �
+ZCPR3��  A� Alia� i� � CO� fil� create� b� th� ALIA� progra� �
+whic蠠 contain� on� o� mor� command� (separate䠠 b� �
+semicolons� t� b� place� i� th� Comman� Lin� Buffer��  Whe� �
+th� Alia� i� invoked�� parameter� fro� th� comman� lin� ar� �
+implante� int� th� scrip� containe� withi� th� Alias�� an� �
+th� resultin� ne� comman� lin� i� place� int� th� Comman� �
+Lin� Buffe� an� executed.
+
+
+
Options:
+     None
+
+
Comments:
+
+     ZCPR� MUS� b� implemente� wit� a� Externa� Comman� Lin� �
+Buffer in order for ALIAS to work.
+
+     Th� scrip�� o� th� interna� comman� lin� support� �
+paramete� passin� i� � manne� simila� t� ZE� an� SUB��  Th� �
+variable� $n�� wher� � <� � <� 9�� ma� b� place� int� th� �
+script� an� th� correspondin� parameter� wil� b� substitute� �
+fo� th� indicate� variables�  Th� variabl� $� i� th� nam� o� �
+th� Alia� itself�  Th� variabl� $� i� th� entir� tai� o� th� �
+command line.
+
+
+     Tw� additiona� variables�� $� an� $U�� ar� available�  �
+$Ġ expand� int� th� lette� o� th� dis� whic� wa� logge� i� �
+a�� th� tim� th� Alia� wa� expande� (th� hom� disk)�� an� $� �
+expand� int� � numbe� (i� ASCI� chars� representin� th� use� �
+are� whic� wa� logge� i� a� th� tim� th� Alia� wa� expande� �
+(the home user).
+
+     Th� ZCPR� Syste� fil� name� ar� availabl� t� th� Alia� �
+a� th� variable� $F� an� $Nn� wher� � <� � <� 4�  $F� refer� �
+t� FILENAME.TY� o� Syste� Fil� 1�� $N� refer� t� FILENAM� o� �
+Syste� Fil� 2�� etc��  Not� tha� th� SETFIL� comman� i� use� �
+to define the contents of the System file names.
+
+     '$$' expands into a single '$'.
+
+
+                 
Summary of Alias Variables
+
+     $0  - Name of Alias
+     $n  - Parameter from Command Line (1 <= n <= 9)
+
+     $*  - Tail of Command Line (everything after the verb)
+
+     $D  - Home Disk
+     $U  - Home User
+
+     $Fn - FILENAME.TYP of System File n (1 <= n <= 4)
+     $Nn - FILENAME of System File n
+
+     $$  - The character '$'
+
+
+
Selected Error Messages:
+
+     "Ovfl� mean� tha� th� expande� comman� line�� combine� �
+wit� th� remainde� o� th� content� o� th� comman� lin� �
+buffer, is too long to fit in the command line buffer.
+
+
Examples of Use:
+
+     ALIAS
+          -- define Alias
+
+     ALIAS alias
+          -- display script of "alias.COM" and edit
+
+:S
+
+                 
Summary of Alias Variables
+
+     $0  - Name of Alias
+     $n  - Parameter from Command Line (1 <= n <= 9)
+
+     $*  - Tail of Command Line (everything after the verb)
+
+     $D  - Home Disk
+     $U  - Home User
+
+     $Fn - FILENAME.TYP of System File n (1 <= n <= 4)
+     $Nn - FILENAME of System File n
+
+     $$  - The character '$'
+
+:E
+
+                    
Examples of Aliases
+
+Case 1:
+
+     Th� use� i� constantl� issuin� th� followin� command� �
+in the order indicated:
+
+          ASM myfile.BBZ
+          LOAD myfile
+
+     He can generalize it with the following Alias script:
+
+          ASM $1.BBZ;LOAD $1
+
+     If this Alias is named MYASM.COM, then typing
+
+"MYASM test" will be equivalent to "ASM test.BBZ;LOAD test"
+
+
+Case 2:
+
+     Th� use� ha� tw� printer� o� hi� system��  H� i� usin� �
+redirectabl� I/� a� implemente� unde� ZCPR3�� an� h� ha� tw� �
+version� o� Wor� Sta� (trademark�� Micropro� - on� fo� eac� �
+printer��  H� ca� creat� a� Alia� containin� th� followin� �
+script:
+
+       Script              Meaning
+
+       I� NEC=$�           Chec� t� se� i� 2n� par� i� NEC
+            DEV L NEC      If so, assign LST to NEC
+            WSN $1            and run NEC version of WS
+       ELSE                If not ...
+            DEV L TTY         assign LST to TTY
+            WST $1            and run TTY version of WS
+       FI
+
+     If the Alias was named WSTAR, then:
+
+     "WSTAR myfile.txt"
+
+would be equivalent to
+
+     DEV L TTY;WST myfile.txt
+
+and
+
+     "WSTAR myfile.txt NEC"
+
+would be equivalent to
+
+     DEV L NEC;WSN myfile.txt
+
\ No newline at end of file
diff --git a/Source/Images/Common/Z3/u10/SALIAS.HLP b/Source/Images/Common/Z3/u10/SALIAS.HLP
new file mode 100644
index 00000000..4a16ea61
--- /dev/null
+++ b/Source/Images/Common/Z3/u10/SALIAS.HLP
@@ -0,0 +1,284 @@
+;
+
=======  S � � � � S   H E L P  =======
+
+   
1�  Genera� Information
+
+   
2�  Comman� Lin� Syntax
+
+   
3�  Fil� Mode
+
+   
4�  Edi� Mode
+
+   
5�  Indentation
+
+   
6�  Miscellany
+
+   
7�  Prin�
+
+   
8�  Messages
+
+   
9�  Installation
+:1
+
GENERA� INFORMATION
+
+        SALIAS� Verion 1.6 - SCREEN ORIENTED ALIAS EDITOR
+               Ro� Friefel�    Septembe� 12� 1992
+
+
+SALIA� i� � ful� scree� edito� fo� creatin� an� modifyin� �stan�-�
+alon� �aliases�  Thi� fil� describe� th� us� o� SALIAS�  B� �sur� �
+t� �rea� �ALIAS.NO� �o� ALIAS.HL� fo� informatio� �o� �usin� �th� �
+executabl� alia� progra� writte� b� SALIAS.�
+
+
+System Requirements:
+
+    TCAP support for CLS, EREOL, and addressable cursor.  The CRT 
+    in  use must have at least 79 columns by 6  lines.   Standout 
+    mode must not use  space on the screen.  The help screen will
+    not appear if the screen has less than 24 lines.
+
+Alia� Module:
+
+����SALIA� �use� a� interna� alia� templat� o� th� ALIAS1� �type� �
+����recentl� �writte� b� Jo� Wright�  Yo� ca� �lin� �SALIAS16.RE� �
+����wit� ne� alia� module� a� the� ar� developed�  On� �importan� �
+����sid� �effect� � O� exitin� SALIAS� G� wil� �no� �execut� �th� �
+����alia� jus� writte� rathe� tha� rerunnin� SALIA� a� yo� �migh� �
+����expect�  
+
+
+SALIAS writes out a stand alone alias with its own internal alias 
+program.   It  does not simply edit the alias script.   In  other 
+words,  all  old aliases are converted to the  newer  program  by 
+SALIAS.
+
�
+     OL� ALIAS             SALIAS                 NE� ALIAS
+
+                      *------------------*
+*----------------*    |*----------------*|     *----------------*
+|*--------------*|    ||*--------------*||     |*--------------*|
+|| Alias Scrip� ||--->|�| Alias Scrip� |||---->|� Alias Script ||
+|*--------------*|    ||*--------------*||     |*--------------*|
+| Alias Program  |    || Alias Progra�  ||---->� Alias Program  |
+*----------------*    |*----------------*|     *----------------*
+                      |  Alias Editor    |
+                      *------------------*
+
+
+
USIN� SALIAS16.REL
+
+SALIAS  1.6 is distributed in M-REL format so that it can  easily 
+be  linked with new or experimental alias modules (and  with  new 
+system  library  versions).  The alias actually written  to  disk 
+makes up the first few records of the program.  In this case,  it 
+is Joe Wright's alias module from ALIAS 1.5.
+
+           SLRNKP SALIAS/N,/A:100/J,ALIAS0,SALIAS16,/E
+                               or
+                   ZML SALIAS=ALIAS0,SALIAS16
+                               or
+                 LINK SALIAS=ALIAS0,SALIAS16[NR]
+
+SALIAS16.REL requests VLIB,Z3LIB, and SYSLIB.
+
+By  tradition,  the alias module is expected to be 8  records  in 
+length or less.  SALIAS and its installation program require only 
+that  the  alias module end on a record boundary and be  no  more 
+than  a few kbytes in size.
+
+SAINST.COM reads the entire SALIAS program, looks for a signature 
+string  at  SALIAS's installation table, then  writes  back  your 
+changes  to  that particular record.  In other words,  the  alias 
+module  can change size and the installation program still  works 
+on the SALIAS you generate.  Unfortunately, M-REL files cannot be 
+installed directly.
+
+Any  alias  experimentation should be based  on  ALIAS0.   SALIAS 
+expects  the general structure and public declarations  you  will 
+find in this module.
+
+Thanks  to Joe Wright for permission to combine  his  interesting 
+new alias program with the SALIAS editor.
+
+
+   
...more
+
+
+
+
+  -------------------------------------------------------------
+
+
+                        COPYRIGHT NOTICE
+
+       SALIAS 1.6 is copyright (C) 1992 by Rob  Friefeld.
+                      All rights reserved.
+
+   Sale or  distribution of this copyrighted  material with a
+   commercial product is prohibited without the prior written
+   consent of the author�   Thi� copyrigh� doe� no� exten� t�
+   an� alia� create� wit� th� SALIA� program.
+
+   Rob Friefeld, 4607 Colorado Street, Long Beach, CA  90814
+
+  ---------------------------------------------------------------
+:2
+
COMMAN� LIN� SYNTAX
+
+
+
+
+Syntax:    SALIAS [[dir:]aliasname[.COM]] 
+
+    SALIAS  assumes  all files are of type  COM.   The  specified 
+    alias  will be loaded for editing, or created if it does  not 
+    exist.  If no alias name is given on the command line, it may 
+    be supplied on exit.
+:3
+
FIL� MODE
+
+Th� � alia� scrip�  i� displaye� o� scree� wit� � �functio� �men� �
+alon� �th� �botto� listin� singl� lette� command� �whic� �contro� �
+fil� �maintenance�  Th� scrip� i� actuall� edite� i� �Edi� �Mode. �
+
+
+
+    A   ADD    - Add the script of another alias.
+    C	CLEAR  - Clear script.  UNDO recovers.
+    E	EDIT   - Enter full screen editor.
+    F	FORMAT - Reformat the script, one command per line.
+    I	INDENT - Format and indent by IF level.
+    L	LOAD   - Clear script and load an alias for editing.
+    M	MODE   - Select Normal or Recursive mode (toggle).
+    N	NAME   - Select a new name (or DIR:) for the script.
+    P	PRINT  - Send the script to printer or to a text file.
+    S	SAVE   - Format and WRITE the alias to disk.
+    U	UNDO   - Cancel unsaved changes to script.
+:4
+
EDI� MODE
+
�Th� scrip� edito� i� WordStar-simila� i� operation.�
+
+CURSOR:                           INSERTION:                          
+           ^R - top of screen         ^V - insert/overwrite
+           ^E - line up             <CR> - insert line
+                                      ^N - insert line                 
+^S - char     ^     ^D - char     DELETION:      
+           <  $  >                    ^G - delete char at cursor
+^A - word     v     ^F - word        DEL - delete char left
+                                      ^T - delete word right
+           ^X - line down             ^Y - delete line
+           ^C - first blank line     ^QY - delete to EOLN
+                                  FIND/REPLACE:
+                                     ^QF - find string
+^QS, ^QD - SOLN, EOLN                ^QA - find/replace string
+^QZ - Clear (Zap) script              ^L - repeat find/replace
+^� � Help                         CONTROL CHAR ENTRY:
+                                    ^P^n - ^n is ctl char
+<TAB> - Indent lin�               HELP:
+<ESC> - FILE mod�                     ^� � Sho� comman� keys
+
+
+
+
+All File Mode functions are accessible from the editor:
+
+ ^KX - Save & Quit SALIAS
+ ^KD - Save & Clear Editor
+ ^KS - Save & Resume on current script
+ ^KQ - Quit
+ ^KR - Read an alias, or add one to current script
+ ^KN - ReName script
+ ^KI - Indent by IF level
+ ^KU - Undo
+ ^KP - Print to list device or disk
+:5
+
INDENTATION
+
+
+
+TA� �i� intende� fo� visua� indentatio� o� I� levels� �TA� �look� �
+lik� �� �blanks� �bu� �i� �no� �actuall� �adde� �t� �th� �script�  �
+Automati� indentatio� wit� INDEN� give� th� scrip� � �Pasca�-lik� �
+appearance.
+
+� �comman�  lin� ma� star� wit� � REA� blan� i� orde� �t� �invok�  �
+th� extende� comman� processor.
+:6
+
MISCELLANY
+
+Comman� line� longe� tha� th� scree� widt� ar� indicate�  wit�  � �
+">�  a�  th�  righ� margin�  Th�  lin�  wil�  scrol� horizontall� �
+whe� th� curso� reache� th� scree� boundary�  ^P� a� th� star� o� �
+� �lin� �append� �i� t�  th� previou�  lin� � withou� �� �comman� �
+separato� (";")�   Thi�  optio� keep� th� entir� scrip� visible.
�
+
+FIND/REPLACE can be used to replicate a string.
+
+    Example� � <^Q^A� �<cr� <I� ~N� � wil� pu� "I� �~NU� �a� �th� �
+               cursor�  Ever� ^� wil� produc� anothe� copy.
+
+
+Contro� characte� entr� use� th� ^� trigger� Control� ma� b� use� �
+fo� �printe� �o� scree� control�  Not� tha� th� ^� �BDO� �printe� �
+toggl� �doe� NO� wor� fro� withi� a� alia� script� ^� onl� �work� �
+whe� th� DO� ha� directl� take� � lin� o� input� 
+
+     Example:  To enter ^Z, use ^P^Z (or ^PZ)
+               ^P@ (null) is not accepted.
+:7
+
PRIN�
+
+
+Th� � "PRINT� � functio�  wil� sen� th�  alia�  scrip� � t� � th� �
+printe� � o� �t� �� dis� file�  Th� dis�  fil� � optio� �ha� �tw� �
+choice� o� format:
+
+����1� � TEXT� �Separat� lin� fo� eac� command� lik� �th� �scree� �
+���������display� Intende� fo� extractin� scrip� t� past� int� �� �
+���������tex� file.
+
+    2� ��LINE�  Singl� multipl�  comman� line�  Fo� importin� �th� �
+���������scrip� t� a� ARUN� CM� file.
+:8
+
MESSAGES
+
+Message� �whic� �requir� �n� respons� g� awa� �whe� �an� �ke� �i� �
+pressed�  Message� whic� d� requir� � respons� ar� o� th� form:
+
+     ... xxxx? (Y/n):  or ... xxxx? (y/N):
+
+The letter in caps is the default choice.  A <cr> selects it.
+
+
+
CL OVERFLOW n CHARS.  SAVE ANYWAY� (y/N):
+    The command line is too long by n characters.  If the SAVE is 
+not  aborted,  the alias probably won't run.  If  you  have  used 
+script parameters such as $U which will require fewer  characters 
+when  "expanded",  you  can  choose  to  over-ride  this  helpful 
+reminder.
+
+
+
+
NOT AN ALIAS:
+    The  specified alias is not an alias at all, but  some  other 
+COM file.  The name is ignored and replaced with a blank.
+
+
+
�
DESTINATION DISK FULL/ DIRECTORY FULL:
+    QUIT or RENAME to a new disk.
+
+
+
+
ALIAS CHOPPED:
+    The  alias file has too many commands to fit on  the  screen.  
+(Could happen when using a small screen.)
+:9
+
INSTALLATION
+
+SAINS� install� th� editor'� comman� ke� bindings� Yo� ca� assig� �
+� �singl� �o� doubl� contro� characte� sequenc� t� �mos� �o� �th� �
+editin� functions�  Yo� canno� assig� � non-contro� key.
+
+Th� �installatio� progra� i� men� oriented� wit� instruction� �o� �
+usage.
\ No newline at end of file
diff --git a/Source/Images/Common/Z3/u14/SCOPY10F.CFG b/Source/Images/Common/Z3/u14/SCOPY10.CFG
similarity index 100%
rename from Source/Images/Common/Z3/u14/SCOPY10F.CFG
rename to Source/Images/Common/Z3/u14/SCOPY10.CFG
diff --git a/Source/Images/Common/Z3/u14/UMAP18.CFG b/Source/Images/Common/Z3/u14/UMAP18.CFG
new file mode 100644
index 00000000..72b87e1d
Binary files /dev/null and b/Source/Images/Common/Z3/u14/UMAP18.CFG differ
diff --git a/Source/Images/d_zpm3/u14/ZEX.CFG b/Source/Images/Common/Z3/u14/ZEX.CFG
similarity index 100%
rename from Source/Images/d_zpm3/u14/ZEX.CFG
rename to Source/Images/Common/Z3/u14/ZEX.CFG
diff --git a/Source/Images/Common/Z3/u15/ALIAS.COM b/Source/Images/Common/Z3/u15/ALIAS.COM
new file mode 100644
index 00000000..39abb2de
Binary files /dev/null and b/Source/Images/Common/Z3/u15/ALIAS.COM differ
diff --git a/Source/Images/d_nzcom/u0/EDITNDR.COM b/Source/Images/Common/Z3/u15/EDITNDR.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/EDITNDR.COM
rename to Source/Images/Common/Z3/u15/EDITNDR.COM
diff --git a/Source/Images/d_zpm3/u15/sainst.com b/Source/Images/Common/Z3/u15/SAINST.COM
similarity index 100%
rename from Source/Images/d_zpm3/u15/sainst.com
rename to Source/Images/Common/Z3/u15/SAINST.COM
diff --git a/Source/Images/Common/Z3/u15/SALIAS.COM b/Source/Images/Common/Z3/u15/SALIAS.COM
new file mode 100644
index 00000000..341b774f
Binary files /dev/null and b/Source/Images/Common/Z3/u15/SALIAS.COM differ
diff --git a/Source/Images/d_nzcom/u0/SAVENDR.COM b/Source/Images/Common/Z3/u15/SAVENDR.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/SAVENDR.COM
rename to Source/Images/Common/Z3/u15/SAVENDR.COM
diff --git a/Source/Images/d_nzcom/u0/SDZ.COM b/Source/Images/Common/Z3/u15/SDZ.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/SDZ.COM
rename to Source/Images/Common/Z3/u15/SDZ.COM
diff --git a/Source/Images/Common/Z3/u15/UMAP.COM b/Source/Images/Common/Z3/u15/UMAP.COM
new file mode 100644
index 00000000..84516a68
Binary files /dev/null and b/Source/Images/Common/Z3/u15/UMAP.COM differ
diff --git a/Source/Images/d_nzcom/u0/ZEX.COM b/Source/Images/Common/Z3/u15/ZEX.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/ZEX.COM
rename to Source/Images/Common/Z3/u15/ZEX.COM
diff --git a/Source/Images/Makefile b/Source/Images/Makefile
index 45425599..3e65dcf2 100644
--- a/Source/Images/Makefile
+++ b/Source/Images/Makefile
@@ -5,6 +5,7 @@ SYSTEMS = ../CPM22/cpm_wbw.sys ../ZSDOS/zsys_wbw.sys ../QPM/qpm_wbw.sys ../CPM3/
 
 FDIMGS = fd144_cpm22.img fd144_zsdos.img fd144_nzcom.img \
 	fd144_cpm3.img fd144_zpm3.img fd144_ws4.img fd144_qpm.img \
+	fd144_z3plus.img \
 	fd144_z80asm.img fd144_aztecc.img fd144_hitechc.img \
 	fd144_bascomp.img fd144_fortran.img fd144_games.img \
 	fd144_tpascal.img fd144_cowgol.img
@@ -13,13 +14,17 @@ HD512IMGS = hd512_cpm22.img hd512_zsdos.img hd512_nzcom.img \
 HD512XIMGS = hd512_z80asm.img hd512_aztecc.img hd512_hitechc.img \
 	hd512_bascomp.img hd512_fortran.img hd512_games.img \
 	hd512_tpascal.img hd512_dos65.img hd512_qpm.img \
-	hd512_cowgol.img hd512_blank.img
+	hd512_z3plus.img \
+	hd512_cowgol.img hd512_msxroms1.img hd512_msxroms2.img \
+	hd512_blank.img
 HD1KIMGS = hd1k_cpm22.img hd1k_zsdos.img hd1k_nzcom.img \
 	hd1k_cpm3.img hd1k_zpm3.img hd1k_ws4.img
 HD1KXIMGS = hd1k_z80asm.img hd1k_aztecc.img hd1k_hitechc.img \
 	hd1k_bascomp.img hd1k_fortran.img hd1k_games.img \
 	hd1k_tpascal.img hd1k_qpm.img \
-	hd1k_cowgol.img hd1k_blank.img
+	hd1k_z3plus.img \
+	hd1k_cowgol.img hd1k_msxroms1.img hd1k_msxroms2.img \
+	hd1k_blank.img
 HD1KXIMGS += hd1k_bp.img
 
 HD512PREFIX =
@@ -29,7 +34,7 @@ OBJECTS = $(FDIMGS)
 OBJECTS += $(HD512IMGS) $(HD512XIMGS) hd512_combo.img $(HD512PREFIX)
 OBJECTS += $(HD1KIMGS) $(HD1KXIMGS) hd1k_combo.img $(HD1KPREFIX)
 
-OTHERS = blank144 blankhd512 blankhd1k
+OTHERS = blank144 blankhd512 blankhd1k *.cat
 
 NODELETE = $(HD512PREFIX) $(HD1KPREFIX)
 
@@ -83,7 +88,7 @@ blankhd1k:
 		(*cpm22*) sys=../CPM22/cpm_wbw.sys;; \
 		(*qpm*) sys=../QPM/qpm_wbw.sys;; \
 		(*zsdos* | *nzcom* | *dos65* | *bp*) sys=../ZSDOS/zsys_wbw.sys;; \
-		(*cpm3*) sys=../CPM3/cpmldr.sys;; \
+		(*cpm3* | *z3plus*) sys=../CPM3/cpmldr.sys;; \
 		(*zpm3*) sys=../ZPM3/zpmldr.sys;; \
 	esac ; \
 	if echo $@ | grep -q ^fd144_ ; then \
@@ -117,7 +122,7 @@ blankhd1k:
 	if [ -f $${dtype}_$$d.txt ] ; then \
 		echo " " copying files from $${dtype}_$$d.txt ; \
 		grep -v ^# $${dtype}_$$d.txt | tr -d '\r' | while read file user ; do \
-			rf=$$($(CASEFN) $$file | sort -V) ; \
+			rf=$$($(CASEFN) $$file | sort -f) ; \
 			echo "    " $$rf ; \
 			if [ -z "$$rf" ] ; then \
 				echo " " $$file missing ; \
@@ -126,7 +131,7 @@ blankhd1k:
 			fi ; \
 		done ; \
 	fi ; \
-
+	$(CPMLS) -f $$fmt -D $@ > $(@:.img=.cat)
 
 clean::
 	@rm -f *.ls
diff --git a/Source/Images/d_aztecc/Readme.txt b/Source/Images/d_aztecc/Readme.txt
index 252747a6..20c682d6 100644
--- a/Source/Images/d_aztecc/Readme.txt
+++ b/Source/Images/d_aztecc/Readme.txt
@@ -7,7 +7,7 @@ for MS-DOS or Windows XP is also available.
 
 For full documentation, see https://www.aztecmuseum.ca/
 
-The user manual is available in the Doc directory
+The user manual is available in the Doc/Language directory
 Aztec_C_1.06_User_Manual_Mar84.pdf
 
 == License ==
diff --git a/Source/Images/d_bascomp/Readme.txt b/Source/Images/d_bascomp/Readme.txt
index d7792401..fff84b63 100644
--- a/Source/Images/d_bascomp/Readme.txt
+++ b/Source/Images/d_bascomp/Readme.txt
@@ -9,3 +9,57 @@ faster than interpreted programs if maximum use of integer variables is
 made.
 
 View BASCOM.HLP included in the disk image using HELP.COM for documentation.
+
+-----------------------------------------------------------
+Example of a session:
+-----------------------------------------------------------
+
+>MBASIC 
+
+BASIC-80 Rev. 5.21
+[CP/M Version]
+Copyright 1977-1981 (C) by Microsoft
+Created: 28-Jul-81
+31800 Bytes free
+Ok
+10 PRINT "Hello World"
+list
+10 PRINT "Hello World"
+Ok
+RUN
+Hello World
+Ok
+SAVE "HELLO",A
+Ok
+SYSTEM
+
+A>TYPE BAS.SUB
+
+BASCOM =$1 /E
+L80 $1,$1/N/E
+
+A>SUPERSUB BAS HELLO
+
+SuperSUB V1.1
+
+A>BASCOM =HELLO /E
+
+00000 Fatal Error(s)
+24196 Bytes Free
+
+A>L80 HELLO,HELLO/N/E
+
+Link-80  3.44  09-Dec-81  Copyright (c) 1981 Microsoft
+
+Data    4000    4197    <  407>
+
+40207 Bytes Free
+[4011   4197       65]
+
+A>hello
+
+Hello World
+
+
+A> 
+
diff --git a/Source/Images/d_bascomp/u0/README.TXT b/Source/Images/d_bascomp/u0/README.TXT
deleted file mode 100644
index d0f0a53d..00000000
--- a/Source/Images/d_bascomp/u0/README.TXT
+++ /dev/null
@@ -1,54 +0,0 @@
-Microsoft Basic-80 Compiler v.5.30a
-
------------------------------------------------------------
-Example of a session:
------------------------------------------------------------
-
->MBASIC 
-
-BASIC-80 Rev. 5.21
-[CP/M Version]
-Copyright 1977-1981 (C) by Microsoft
-Created: 28-Jul-81
-31800 Bytes free
-Ok
-10 PRINT "Hello World"
-list
-10 PRINT "Hello World"
-Ok
-RUN
-Hello World
-Ok
-SAVE "HELLO",A
-Ok
-SYSTEM
-
-A>TYPE BAS.SUB
-
-BASCOM =$1 /E
-L80 $1,$1/N/E
-
-A>SUPERSUB BAS HELLO
-
-SuperSUB V1.1
-
-A>BASCOM =HELLO /E
-
-00000 Fatal Error(s)
-24196 Bytes Free
-
-A>L80 HELLO,HELLO/N/E
-
-Link-80  3.44  09-Dec-81  Copyright (c) 1981 Microsoft
-
-Data    4000    4197    <  407>
-
-40207 Bytes Free
-[4011   4197       65]
-
-A>hello
-
-Hello World
-
-
-A> 
diff --git a/Source/Images/d_bp/ReadMe.txt b/Source/Images/d_bp/ReadMe.txt
new file mode 100644
index 00000000..f6c54e8b
--- /dev/null
+++ b/Source/Images/d_bp/ReadMe.txt
@@ -0,0 +1,24 @@
+===== BPBIOS Disk for RomWBW =====
+
+This disk is one of several ready-to-run disks provided with RomWBW.  
+It contains the files to start and run BPBIOS under RomWBW.
+
+WARNING: This is a work in progress.  It is not ready for general
+usage at this time.
+
+For information on this adaptation of BPBIOS, please refer to the
+following files in RomWBW distribution in the /Source/BPBIOS folder.
+
+@WBW BPBIOS Errata.rtf
+@WBW Issues.txt
+@WBW Z3ENV.txt
+
+== Usage ==
+
+  - The disk is configured to boot under ZSDOS 1.1.  BPBIOS can then
+    be launched using LDSYS with one of the system images.  For
+    example:
+    
+    LDSYS BP41BNK
+    
+-- WBW 4:02 PM 10/22/2024
\ No newline at end of file
diff --git a/Source/Images/d_bp/u0/support.txt b/Source/Images/d_bp/u0/support.txt
index db70c39d..ad0035ba 100644
--- a/Source/Images/d_bp/u0/support.txt
+++ b/Source/Images/d_bp/u0/support.txt
@@ -2,16 +2,16 @@ This library contains a number of support files, programs and scripts needed
 to bring up a fully functioning BPBIOS Zsystem.  These programs and files
 are used and/or loaded by the startup scripts.
 
-Some of the support files are startup ZEX scripts, some are Z3+ segment files, 
-others are Date and Time stamp drivers, some are command line editors and 
-history shells others are needed to initialize the RAMDRIVE as well as help files.  
+Some of the support files are startup ZEX scripts, some are Z3+ segment files,
+others are Date and Time stamp drivers, some are command line editors and
+history shells others are needed to initialize the RAMDRIVE as well as help files.
 
-The following table shows which files are needed to support each of the ten 
-BPBIOS variants (BP33, BP33BNK, BP34, BP34BNK & BBP41BNK). 
+The following table shows which files are needed to support each of the ten
+BPBIOS variants (BP33, BP33BNK, BP34, BP34BNK & BBP41BNK).
 
 Variant Name		BP33	BP33BNK	BP34	BP34BNK BP41BNK
 ================================================================
-bpbio.ndr				X	X	X	
+bpbio.ndr				X	X	X
 bpbioz33.ndr		X	X
 BPCNFG.COM		X	X	X	X	X
 EASE.COM		X	X
@@ -20,18 +20,18 @@ fcp-4.zrl		X	X
 fcp-4t.zrl				X	X	X
 RELOG			X	X	X	X	X
 HELPLSH.COM				X	X	X
-IF.COM			X       X	X	X	
+IF.COM			X       X	X	X
 jetldr.com		X	X	X	X	X
 LDTIMEC.COM		X	X		X
 LSH.COM					X	X	X
 LSHF.COM*				X	X	X
 LSHF.VAR*				X	X	X
-myterm.z3t		X	X	X	X	X 
-nzdec23d.z3t		X	X	X	X	X 
+myterm.z3t		X	X	X	X	X
+nzdec23d.z3t		X	X	X	X	X
 PUTDS.COM		X	X	X	X	X
 RAMFILES.TXT		X	X	X	X	X
 RCOPY.COM		X	X	X	X	X
-rcp-16h.zrl		X	X	X	X	
+rcp-16h.zrl		X	X	X	X
 SAVE.COM		X	X	X	X
 Z33.ZEX			X	X
 ZEX.COM			X	X	X	X	X
@@ -43,14 +43,14 @@ ZST.ZEX					X	X
 
 Instructions:
 	The support files are "crunched" and stored in the library file
-SUPPORT.LBR.  Place SUPPORT.LBR on the RAMDRIVE using for example 
+SUPPORT.LBR.  Place SUPPORT.LBR on the RAMDRIVE using for example
 XModem. Use LBREXT with the /U option to extract and uncrunch the
-files.  First extract ZEX.COM while logged onto the A: drive with the 
+files.  First extract ZEX.COM while logged onto the A: drive with the
 following command:
 	B0:LBREXT SUPPORT C0:ZEX.C?M /U
 Next place all the .COM files on C15: by typing:
 	B0:LBREXT SUPPORT C15:*.C?M /U
-The remaining files should be placed on C0:.  
+The remaining files should be placed on C0:.
 	B0:LBREXT SUPPORT C0:*.Z?X /U
 	B0:LBREXT SUPPORT C0:*.Z?L /U
 	B0:LBREXT SUPPORT C0:*.N?R /U
@@ -59,14 +59,14 @@ The remaining files should be placed on C0:.
 	B0:LBREXT SUPPORT C0:*.H?P /U
 
 Note in all BPBIOS variants that A: is the RAMDRIVE, B: is
-the ROMDRIVE and C: is the system drive.  Hard drive slices occupy C: 
+the ROMDRIVE and C: is the system drive.  Hard drive slices occupy C:
 through N: and floppy drives are O: & P:.  A short desciption
 of each of the support files follows:
 
 bpbioz33.ndr	- Named Directory Table for Z33
 bpbio.ndr	- Named Directory Table for Z34 & Z41
 BPCNFG.COM	- BPBIOS configuration program
-EASE.COM	- Command line editor & history shell for Z33* 
+EASE.COM	- Command line editor & history shell for Z33*
 EASE.HLP	- Help file for EASE
 fcp-4.zrl	- Z33 Flow Control Processor (handles IF, ELSE etc)
 fcp-4t.zrl	- Z34 & Z41 Flow Control Processor (IF is transient)
@@ -80,7 +80,7 @@ LSHF.COM	- LSH with a fixed length History file (runs faster)
 LSHF.VAR	- History file for LSHF
 myterm.z3t	- Terminal Capabilities file (defines ESC sequences etc)
 NZDEC23D.Z3T	- VT100 Terminal Capabilities File.
-PUTDS.COM	- Installs date stamping for RAM drive.
+PUTDS.COM	- Prepare disk for DateStamper date/time stamping.
 RAMFILES.TXT	- List of frequently used command (edit to suit)
 RCOPY.COM	- Copies files listed in RAMFILES.TXT to RAMDRIVE
 rcp-16h.zrl	- Zsystem Resident Command Processor
@@ -92,4 +92,4 @@ ZSCFG2.COM	- Configures ZSDOS 2
 ZSTF.ZEX	- Automatically executed Startup script for BP41BNK
 ZST.ZEX		- Automatically executed Startup script for BP34*
 
-Note that clock & datestamping drivers are builtin to Z41.
\ No newline at end of file
+Note that clock & datestamping drivers are builtin to Z41.
diff --git a/Source/Images/d_bp/u0/zex.com b/Source/Images/d_bp/u0/zex.com
deleted file mode 100644
index cd46405d..00000000
Binary files a/Source/Images/d_bp/u0/zex.com and /dev/null differ
diff --git a/Source/Images/d_bp/u14/copy.cfg b/Source/Images/d_bp/u14/copy.cfg
deleted file mode 100644
index e55fcebf..00000000
Binary files a/Source/Images/d_bp/u14/copy.cfg and /dev/null differ
diff --git a/Source/Images/d_bp/u15/copy.com b/Source/Images/d_bp/u15/copy.com
deleted file mode 100644
index 606c81a5..00000000
Binary files a/Source/Images/d_bp/u15/copy.com and /dev/null differ
diff --git a/Source/Images/d_bp/u15/zcnfg.com b/Source/Images/d_bp/u15/zcnfg.com
deleted file mode 100644
index ae423dc5..00000000
Binary files a/Source/Images/d_bp/u15/zcnfg.com and /dev/null differ
diff --git a/Source/Images/d_bp/u15/zex.com b/Source/Images/d_bp/u15/zex.com
deleted file mode 100644
index cd46405d..00000000
Binary files a/Source/Images/d_bp/u15/zex.com and /dev/null differ
diff --git a/Source/Images/d_cowgol/Readme.txt b/Source/Images/d_cowgol/Readme.txt
index ca59df45..2630163b 100644
--- a/Source/Images/d_cowgol/Readme.txt
+++ b/Source/Images/d_cowgol/Readme.txt
@@ -10,6 +10,9 @@ is tailored to RomWBW memory management.
 The primary distribution site for Cowgol 2.0 is at
 https://github.com/davidgiven/cowgol.
 
+The user manual is available in the Doc/Language directory
+Cowgol Language.pdf
+
 The Hi-Tech C compiler components were sourced from the updated
 version by Tony Nicholson at https://github.com/agn453/HI-TECH-Z80-C.
 However, the CPP.COM component was sourced from Ladislau Szilagyi's
diff --git a/Source/Images/d_cpm22/ReadMe.txt b/Source/Images/d_cpm22/ReadMe.txt
index 3b625aca..d3855964 100644
--- a/Source/Images/d_cpm22/ReadMe.txt
+++ b/Source/Images/d_cpm22/ReadMe.txt
@@ -42,7 +42,7 @@ RomWBW Distribution.
 
 The following CP/M 2.2 files were distributed by DRI with the operating
 system or as supplemental add-on programs.  They are documented in the
-"CP/M Manual.pdf" document in the Doc directory of the Rom WBW
+"CP/M Manual.pdf" document in the Doc/CPM directory of the Rom WBW
 distribution.  MAC, RMAC, ZSID are supplemental programs from DRI
 with separate standalone documentation which is not included in the
 RomWBW package (but easily found on the Internet via Google search).
@@ -134,7 +134,7 @@ LBREXT.COM - Extract file from .LBR libraries
 LBREXT36.CFG - ZCNFG configuration file for LBREXT
 ZXD.COM - Enhanced directory lister w/ date/time stamp support
 ZXD.CFG - ZCNFG configuration file for ZXD
-BBCBASIC.COM - BBC BASIC CP/M Version 3.00 by R.T.Russell
+BBCBASIC.COM - BBC BASIC CP/M Version by R.T.Russell
 BBCBASIC.TXT - Help file for BBC BASIC
 GENHEX.COM - Generates an Intel Hex file from the input file
 LS.COM - An alternative file listing to DIR
@@ -165,4 +165,4 @@ in this user area for more information.
 N.B., at a minimum, some of the files in this user area must be copied
 to user area 0 for CP/NET to work properly.
 
--- WBW 3:20 PM 8/27/2021
\ No newline at end of file
+-- WBW 3:20 PM 8/27/2021
diff --git a/Source/Images/d_zpm3/u15/xref.com b/Source/Images/d_cpm22/u0/XREF.COM
similarity index 100%
rename from Source/Images/d_zpm3/u15/xref.com
rename to Source/Images/d_cpm22/u0/XREF.COM
diff --git a/Source/Images/d_cpm3/ReadMe.txt b/Source/Images/d_cpm3/ReadMe.txt
new file mode 100644
index 00000000..65b3ba69
--- /dev/null
+++ b/Source/Images/d_cpm3/ReadMe.txt
@@ -0,0 +1,35 @@
+This is a generic CP/M 3 adaptation for RomWBW.
+
+There are two ways to launch CP/M 3.  First, you can run the command
+CPMLDR from a CP/M 2.2 or Z-System command line.  Alternatively, you can
+boot directly into CP/M 3 by choosing the CP/M 3 disk from the RomWBW
+loader prompt.  The CP/M 3 disk must be bootable in this case.
+
+With the following exceptions, the files in this directory came from
+the CP/M 3 binary distribution on "The Unofficial CP/M Web site" at
+http://www.cpm.z80.de/binary.html.
+
+The included files have been
+patched with all applicable DRI patches per CPM3FIX.PAT.
+
+ZSID.COM is the original DRI ZSID distribution, but patched to use 
+RST 6 instead of RST 7 to avoid conflicting with mode 1 interrupts.
+
+CP/M 3 is now fully Year 2000 compliant. This affects the programs
+DATE.COM, DIR.COM and SHOW.COM.
+
+Dates can be displayed in US, UK or Year-Month-Day format. This is set by
+SETDEF:
+
+Press RETURN to Continue
+      SETDEF [US]
+      SETDEF [UK]
+      SETDEF [YMD]  respectively.
+
+The CCP has a further bug fix: A command sequence such as:
+
+  C1
+  :C2
+  :C3
+
+will now not execute the command C3 if the command C1 failed.
diff --git a/Source/Images/d_cpm3/u0/LIB.COM b/Source/Images/d_cpm3/u0/LIB.COM
new file mode 100644
index 00000000..45d7fb21
Binary files /dev/null and b/Source/Images/d_cpm3/u0/LIB.COM differ
diff --git a/Source/Images/d_cpm3/u0/LINK.COM b/Source/Images/d_cpm3/u0/LINK.COM
new file mode 100644
index 00000000..e188fb92
Binary files /dev/null and b/Source/Images/d_cpm3/u0/LINK.COM differ
diff --git a/Source/Images/d_cpm3/u0/MAC.COM b/Source/Images/d_cpm3/u0/MAC.COM
new file mode 100644
index 00000000..f49e835a
Binary files /dev/null and b/Source/Images/d_cpm3/u0/MAC.COM differ
diff --git a/Source/Images/d_cpm3/u0/RMAC.COM b/Source/Images/d_cpm3/u0/RMAC.COM
new file mode 100644
index 00000000..9ab7206b
Binary files /dev/null and b/Source/Images/d_cpm3/u0/RMAC.COM differ
diff --git a/Source/Images/d_cpm3/u0/ROMWBW.TXT b/Source/Images/d_cpm3/u0/ROMWBW.TXT
deleted file mode 100644
index 3e6be3be..00000000
--- a/Source/Images/d_cpm3/u0/ROMWBW.TXT
+++ /dev/null
@@ -1,21 +0,0 @@
-This is a generic CP/M 3 adaptation for RomWBW.
-
-There are two ways to launch CP/M 3.  First, you can run the command
-CPMLDR from a CP/M 2.2 or Z-System command line.  Alternatively, you
-boot directly into CP/M 3 by choosing the CP/M 3 disk from the RomWBW
-loader prompt.  The CP/M 3 disk must be bootable in this case.
-
-With the following exceptions, the files in this directory came from
-the CP/M 3 binary distribution on "The Unofficial CP/M Web site" at
-http://www.cpm.z80.de/binary.html.
-
-As documented in the "README.1ST" file, the included files have been
-patched with all applicable DRI patches per CPM3FIX.PAT.
-
-In addition, the following have been added:
-
-- INITDIR.COM was not included.  The copy included is the original
-  DRI distribution, with both patches installed.
-
-- ZSID.COM is the original DRI ZSID distribution, but patched to use 
-  RST 6 instead of RST 7 to avoid conflicting with mode 1 interrupts. 
\ No newline at end of file
diff --git a/Source/Images/d_cpm3/u0/XREF.COM b/Source/Images/d_cpm3/u0/XREF.COM
new file mode 100644
index 00000000..32c57ae0
Binary files /dev/null and b/Source/Images/d_cpm3/u0/XREF.COM differ
diff --git a/Source/Images/d_dos65/ReadMe.txt b/Source/Images/d_dos65/ReadMe.txt
index 1662f87c..eec1ab5a 100644
--- a/Source/Images/d_dos65/ReadMe.txt
+++ b/Source/Images/d_dos65/ReadMe.txt
@@ -1,17 +1,17 @@
 ===== DOS/65 Disk for RomWBW =====
 
 This disk is one of several ready-to-run disks provided with RomWBW.  
-It contains the files to start and run DOS/65 on an MBC system that
-contains Dan Werner's 6502 processor.
+It contains the files to start and run DOS/65 on a Nhyodyne system that
+with a 6502 processor board.
 
 WARNING: This is a work in progress.  Use of this disk image requires
 specific hardware and configuration.  You should contact Dan Werner
 before attempting to use this disk image.
 
-The remainder of this document describes the usage and contents of
-this disk.  It is highly recommended that you review the "RomWBW
-User Guide.pdf" document found in the Doc directory of the
-RomWBW Distribution.
+More information on the contents of this disk and the associated
+6502 processor board can be found at the following link:
+
+https://github.com/lynchaj/nhyodyne/tree/main/6502PROC
 
 == Usage ==
 
@@ -22,7 +22,7 @@ RomWBW Distribution.
 == Notes ==
 
   - DOS/65 is generally compatible with the CP/M 2.2 filesystem.  Once
-    launched, you will have access to the fielsystem of the boot disk.
+    launched, you will have access to the filesystem of the boot disk.
 
   - DOS/65 does not utilize any of the RomWBW framework or drivers, so
     it will only support devices built into DOS/65 itself.  Once
@@ -31,4 +31,4 @@ RomWBW Distribution.
   - The contents of this disk are purely a redistribution of the work
     of Dan Werner.
 
--- WBW 2:47 PM 3/16/2023
\ No newline at end of file
+-- WBW 3:56 PM 10/22/2024
\ No newline at end of file
diff --git a/Source/Images/d_fortran/Readme.txt b/Source/Images/d_fortran/Readme.txt
index 71d6398a..b57ee721 100644
--- a/Source/Images/d_fortran/Readme.txt
+++ b/Source/Images/d_fortran/Readme.txt
@@ -6,5 +6,5 @@ programming language. It was one of their early core languages developed for the
 rebranded the product as Microsoft Fortran Powerstation. (Note: -80 refers to
 the 8080/Z80 platform, not the language specification version)
 
-The user manual is available in the Doc directory,
+The user manual is available in the Doc/Language directory,
 Microsoft_FORTRAN-80_Users_Manual_1977.pdf
diff --git a/Source/Images/d_hitechc/Readme.txt b/Source/Images/d_hitechc/Readme.txt
index 0207d76b..671c532d 100644
--- a/Source/Images/d_hitechc/Readme.txt
+++ b/Source/Images/d_hitechc/Readme.txt
@@ -10,7 +10,7 @@ without an operating system.
 This is the Mar 21, 2023 update 17 released by Tony Nicholson who currently
 maintains HI-TECH C at https://github.com/agn453/HI-TECH-Z80-C
 
-The manual is available in the Docs directory,
+The manual is available in the Doc/Language directory,
 HI-TECH Z80 C Compiler Manual.txt
 
 A good blog post about the HI-TECH C Compiler is available at
@@ -23,4 +23,4 @@ use, private or commercial, strictly as-is. No warranty or product
 support is offered or implied.
 
 You may use this software for whatever you like, providing you acknowledge
-that the copyright to this software remains with HI-TECH Software.
\ No newline at end of file
+that the copyright to this software remains with HI-TECH Software.
diff --git a/Source/Images/d_msxroms1/ReadMe.txt b/Source/Images/d_msxroms1/ReadMe.txt
new file mode 100644
index 00000000..d0ef09ea
--- /dev/null
+++ b/Source/Images/d_msxroms1/ReadMe.txt
@@ -0,0 +1,19 @@
+===== MSX ROMs Disk for RomWBW =====
+
+This is disk 1 of 2 of the collection of MSX ROMs as provided by Les 
+Bird (ROM filenames A-K).  These ROMs are "run" by using the 
+appropriate variant of Les' MSX8 ROM loader.  You can download the 
+loader binaries from https://github.com/lesbird/MSX8.  You will need
+appropriate hardware to run the loader.
+
+Please review the file ROMLIST.TXT for information on the current
+operational status of the ROM and it's long file name/description.
+
+This disk (RomWBW slice) is not automatically included with the
+RomWBW "combo" disk images.  You can simply add it to a combo
+image by appending it to the end.  After booting your system,
+you can use the ASSIGN command to map the slice to a drive letter.
+Refer to the RomWBW User Guide for more information on this
+process.
+
+-- WBW 11:15 AM 8/21/2024
diff --git a/Source/Images/d_msxroms1/u0/10YAR000.ROM b/Source/Images/d_msxroms1/u0/10YAR000.ROM
new file mode 100644
index 00000000..ae5d7b06
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/10YAR000.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/3DGOL002.ROM b/Source/Images/d_msxroms1/u0/3DGOL002.ROM
new file mode 100644
index 00000000..77a5ece1
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diff --git a/Source/Images/d_msxroms1/u0/3DGOL003.ROM b/Source/Images/d_msxroms1/u0/3DGOL003.ROM
new file mode 100644
index 00000000..4e56857f
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diff --git a/Source/Images/d_msxroms1/u0/3DTEN004.ROM b/Source/Images/d_msxroms1/u0/3DTEN004.ROM
new file mode 100644
index 00000000..fd9f8b31
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diff --git a/Source/Images/d_msxroms1/u0/ACTMA007.ROM b/Source/Images/d_msxroms1/u0/ACTMA007.ROM
new file mode 100644
index 00000000..fa7c104d
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diff --git a/Source/Images/d_msxroms1/u0/ADVEN008.ROM b/Source/Images/d_msxroms1/u0/ADVEN008.ROM
new file mode 100644
index 00000000..1fb34dad
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diff --git a/Source/Images/d_msxroms1/u0/AEJAP005.ROM b/Source/Images/d_msxroms1/u0/AEJAP005.ROM
new file mode 100644
index 00000000..b80324ce
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diff --git a/Source/Images/d_msxroms1/u0/ALBAT009.ROM b/Source/Images/d_msxroms1/u0/ALBAT009.ROM
new file mode 100644
index 00000000..a35ac521
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diff --git a/Source/Images/d_msxroms1/u0/ALCAZ010.ROM b/Source/Images/d_msxroms1/u0/ALCAZ010.ROM
new file mode 100644
index 00000000..cba2d123
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diff --git a/Source/Images/d_msxroms1/u0/ALIBA011.ROM b/Source/Images/d_msxroms1/u0/ALIBA011.ROM
new file mode 100644
index 00000000..2c11cae4
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diff --git a/Source/Images/d_msxroms1/u0/ALIEN012.ROM b/Source/Images/d_msxroms1/u0/ALIEN012.ROM
new file mode 100644
index 00000000..ecf6367d
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diff --git a/Source/Images/d_msxroms1/u0/ALPHA014.ROM b/Source/Images/d_msxroms1/u0/ALPHA014.ROM
new file mode 100644
index 00000000..5439aa19
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diff --git a/Source/Images/d_msxroms1/u0/ALPHA015.ROM b/Source/Images/d_msxroms1/u0/ALPHA015.ROM
new file mode 100644
index 00000000..3313446e
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diff --git a/Source/Images/d_msxroms1/u0/AMERI016.ROM b/Source/Images/d_msxroms1/u0/AMERI016.ROM
new file mode 100644
index 00000000..39f9dbfd
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diff --git a/Source/Images/d_msxroms1/u0/ANAZA017.ROM b/Source/Images/d_msxroms1/u0/ANAZA017.ROM
new file mode 100644
index 00000000..ea6fd222
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diff --git a/Source/Images/d_msxroms1/u0/ANGEL018.ROM b/Source/Images/d_msxroms1/u0/ANGEL018.ROM
new file mode 100644
index 00000000..89881a99
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diff --git a/Source/Images/d_msxroms1/u0/ANTAR020.ROM b/Source/Images/d_msxroms1/u0/ANTAR020.ROM
new file mode 100644
index 00000000..422b9501
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diff --git a/Source/Images/d_msxroms1/u0/ANTAR021.ROM b/Source/Images/d_msxroms1/u0/ANTAR021.ROM
new file mode 100644
index 00000000..445a8f0f
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diff --git a/Source/Images/d_msxroms1/u0/ANTYJ022.ROM b/Source/Images/d_msxroms1/u0/ANTYJ022.ROM
new file mode 100644
index 00000000..a67c0d76
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diff --git a/Source/Images/d_msxroms1/u0/AQUAP023.ROM b/Source/Images/d_msxroms1/u0/AQUAP023.ROM
new file mode 100644
index 00000000..e6da508b
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diff --git a/Source/Images/d_msxroms1/u0/AQUAT024.ROM b/Source/Images/d_msxroms1/u0/AQUAT024.ROM
new file mode 100644
index 00000000..a0c6b2e7
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/AQUAT024.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/ARAMO025.ROM b/Source/Images/d_msxroms1/u0/ARAMO025.ROM
new file mode 100644
index 00000000..bfbfdce6
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diff --git a/Source/Images/d_msxroms1/u0/ARKAN026.ROM b/Source/Images/d_msxroms1/u0/ARKAN026.ROM
new file mode 100644
index 00000000..bc365bea
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diff --git a/Source/Images/d_msxroms1/u0/ATHLE027.ROM b/Source/Images/d_msxroms1/u0/ATHLE027.ROM
new file mode 100644
index 00000000..b7b1aa69
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diff --git a/Source/Images/d_msxroms1/u0/ATHLE028.ROM b/Source/Images/d_msxroms1/u0/ATHLE028.ROM
new file mode 100644
index 00000000..e60aa84a
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diff --git a/Source/Images/d_msxroms1/u0/ATHLE029.ROM b/Source/Images/d_msxroms1/u0/ATHLE029.ROM
new file mode 100644
index 00000000..0cdc3cff
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diff --git a/Source/Images/d_msxroms1/u0/ATTAC030.ROM b/Source/Images/d_msxroms1/u0/ATTAC030.ROM
new file mode 100644
index 00000000..c8e9d720
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diff --git a/Source/Images/d_msxroms1/u0/BACKG032.ROM b/Source/Images/d_msxroms1/u0/BACKG032.ROM
new file mode 100644
index 00000000..e66f0da2
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diff --git a/Source/Images/d_msxroms1/u0/BACKG034.ROM b/Source/Images/d_msxroms1/u0/BACKG034.ROM
new file mode 100644
index 00000000..365128d4
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diff --git a/Source/Images/d_msxroms1/u0/BACKT033.ROM b/Source/Images/d_msxroms1/u0/BACKT033.ROM
new file mode 100644
index 00000000..d2f30d91
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diff --git a/Source/Images/d_msxroms1/u0/BALAN035.ROM b/Source/Images/d_msxroms1/u0/BALAN035.ROM
new file mode 100644
index 00000000..476266cf
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diff --git a/Source/Images/d_msxroms1/u0/BANAN036.ROM b/Source/Images/d_msxroms1/u0/BANAN036.ROM
new file mode 100644
index 00000000..17e1c319
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diff --git a/Source/Images/d_msxroms1/u0/BANKP037.ROM b/Source/Images/d_msxroms1/u0/BANKP037.ROM
new file mode 100644
index 00000000..b3579e3d
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diff --git a/Source/Images/d_msxroms1/u0/BASIC038.ROM b/Source/Images/d_msxroms1/u0/BASIC038.ROM
new file mode 100644
index 00000000..731ef712
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diff --git a/Source/Images/d_msxroms1/u0/BASIC039.ROM b/Source/Images/d_msxroms1/u0/BASIC039.ROM
new file mode 100644
index 00000000..5d0904e8
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diff --git a/Source/Images/d_msxroms1/u0/BATTE041.ROM b/Source/Images/d_msxroms1/u0/BATTE041.ROM
new file mode 100644
index 00000000..5e32105d
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diff --git a/Source/Images/d_msxroms1/u0/BATTL042.ROM b/Source/Images/d_msxroms1/u0/BATTL042.ROM
new file mode 100644
index 00000000..5a6022d3
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diff --git a/Source/Images/d_msxroms1/u0/BATTL043.ROM b/Source/Images/d_msxroms1/u0/BATTL043.ROM
new file mode 100644
index 00000000..6e3346f1
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diff --git a/Source/Images/d_msxroms1/u0/BCSQU031.ROM b/Source/Images/d_msxroms1/u0/BCSQU031.ROM
new file mode 100644
index 00000000..3df3ea51
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diff --git a/Source/Images/d_msxroms1/u0/BEACH044.ROM b/Source/Images/d_msxroms1/u0/BEACH044.ROM
new file mode 100644
index 00000000..ceea3df9
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diff --git a/Source/Images/d_msxroms1/u0/BEAMR045.ROM b/Source/Images/d_msxroms1/u0/BEAMR045.ROM
new file mode 100644
index 00000000..d81d7e67
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/BEAMR045.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/BECKY046.ROM b/Source/Images/d_msxroms1/u0/BECKY046.ROM
new file mode 100644
index 00000000..d6a6a304
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diff --git a/Source/Images/d_msxroms1/u0/BEEFL047.ROM b/Source/Images/d_msxroms1/u0/BEEFL047.ROM
new file mode 100644
index 00000000..5ff6ae68
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diff --git a/Source/Images/d_msxroms1/u0/BIFAM048.ROM b/Source/Images/d_msxroms1/u0/BIFAM048.ROM
new file mode 100644
index 00000000..5d47a3c9
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/BIFAM048.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/BINAR049.ROM b/Source/Images/d_msxroms1/u0/BINAR049.ROM
new file mode 100644
index 00000000..91af7e5d
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diff --git a/Source/Images/d_msxroms1/u0/BLACK051.ROM b/Source/Images/d_msxroms1/u0/BLACK051.ROM
new file mode 100644
index 00000000..37b421bb
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diff --git a/Source/Images/d_msxroms1/u0/BLAGG052.ROM b/Source/Images/d_msxroms1/u0/BLAGG052.ROM
new file mode 100644
index 00000000..6162bac0
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/BLAGG052.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/BLOCK053.ROM b/Source/Images/d_msxroms1/u0/BLOCK053.ROM
new file mode 100644
index 00000000..b37356a4
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diff --git a/Source/Images/d_msxroms1/u0/BLOCK054.ROM b/Source/Images/d_msxroms1/u0/BLOCK054.ROM
new file mode 100644
index 00000000..f9141e13
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diff --git a/Source/Images/d_msxroms1/u0/BOGGY055.ROM b/Source/Images/d_msxroms1/u0/BOGGY055.ROM
new file mode 100644
index 00000000..4d0f7c62
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diff --git a/Source/Images/d_msxroms1/u0/BOING056.ROM b/Source/Images/d_msxroms1/u0/BOING056.ROM
new file mode 100644
index 00000000..b6693c08
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diff --git a/Source/Images/d_msxroms1/u0/BOKOS057.ROM b/Source/Images/d_msxroms1/u0/BOKOS057.ROM
new file mode 100644
index 00000000..d1ccf715
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diff --git a/Source/Images/d_msxroms1/u0/BOMBE059.ROM b/Source/Images/d_msxroms1/u0/BOMBE059.ROM
new file mode 100644
index 00000000..5947632c
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diff --git a/Source/Images/d_msxroms1/u0/BOMBE060.ROM b/Source/Images/d_msxroms1/u0/BOMBE060.ROM
new file mode 100644
index 00000000..87008bdf
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diff --git a/Source/Images/d_msxroms1/u0/BOOGI061.ROM b/Source/Images/d_msxroms1/u0/BOOGI061.ROM
new file mode 100644
index 00000000..2ff616f2
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diff --git a/Source/Images/d_msxroms1/u0/BOOME062.ROM b/Source/Images/d_msxroms1/u0/BOOME062.ROM
new file mode 100644
index 00000000..8fae0aaa
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diff --git a/Source/Images/d_msxroms1/u0/BOSCO064.ROM b/Source/Images/d_msxroms1/u0/BOSCO064.ROM
new file mode 100644
index 00000000..ea6e5005
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diff --git a/Source/Images/d_msxroms1/u0/BOUKE065.ROM b/Source/Images/d_msxroms1/u0/BOUKE065.ROM
new file mode 100644
index 00000000..d362a293
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diff --git a/Source/Images/d_msxroms1/u0/BOULD066.ROM b/Source/Images/d_msxroms1/u0/BOULD066.ROM
new file mode 100644
index 00000000..6412c3eb
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diff --git a/Source/Images/d_msxroms1/u0/BOUNC067.ROM b/Source/Images/d_msxroms1/u0/BOUNC067.ROM
new file mode 100644
index 00000000..9bb57080
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diff --git a/Source/Images/d_msxroms1/u0/BRAIN068.ROM b/Source/Images/d_msxroms1/u0/BRAIN068.ROM
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index 00000000..1b62f7a5
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/Source/Images/d_msxroms1/u0/CRUSA129.ROM b/Source/Images/d_msxroms1/u0/CRUSA129.ROM
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index 00000000..6f357c36
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diff --git a/Source/Images/d_msxroms1/u0/CSOJA077.ROM b/Source/Images/d_msxroms1/u0/CSOJA077.ROM
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index 00000000..e8457e83
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diff --git a/Source/Images/d_msxroms1/u0/DAIDA131.ROM b/Source/Images/d_msxroms1/u0/DAIDA131.ROM
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index 00000000..ca1af6b2
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index 00000000..8a2800a3
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diff --git a/Source/Images/d_msxroms1/u0/DANGE134.ROM b/Source/Images/d_msxroms1/u0/DANGE134.ROM
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index 00000000..c1009822
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diff --git a/Source/Images/d_msxroms1/u0/DAVID135.ROM b/Source/Images/d_msxroms1/u0/DAVID135.ROM
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index 00000000..b436aee2
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diff --git a/Source/Images/d_msxroms1/u0/DDAYJ130.ROM b/Source/Images/d_msxroms1/u0/DDAYJ130.ROM
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index 00000000..2c2eb465
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diff --git a/Source/Images/d_msxroms1/u0/DECAT137.ROM b/Source/Images/d_msxroms1/u0/DECAT137.ROM
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index 00000000..6d5bd4c0
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diff --git a/Source/Images/d_msxroms1/u0/DEMON140.ROM b/Source/Images/d_msxroms1/u0/DEMON140.ROM
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index 00000000..4f883d6f
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diff --git a/Source/Images/d_msxroms1/u0/DEVIL142.ROM b/Source/Images/d_msxroms1/u0/DEVIL142.ROM
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index 00000000..b0434cbf
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index 00000000..fd5a47ca
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diff --git a/Source/Images/d_msxroms1/u0/DIPDI145.ROM b/Source/Images/d_msxroms1/u0/DIPDI145.ROM
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index 00000000..16150fc5
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index 00000000..67be6f81
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diff --git a/Source/Images/d_msxroms1/u0/DOORD147.ROM b/Source/Images/d_msxroms1/u0/DOORD147.ROM
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index 00000000..7714380f
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diff --git a/Source/Images/d_msxroms1/u0/DOROD148.ROM b/Source/Images/d_msxroms1/u0/DOROD148.ROM
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index 00000000..46067a57
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diff --git a/Source/Images/d_msxroms1/u0/DOUBL149.ROM b/Source/Images/d_msxroms1/u0/DOUBL149.ROM
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index 00000000..b8968746
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diff --git a/Source/Images/d_msxroms1/u0/DRAGO151.ROM b/Source/Images/d_msxroms1/u0/DRAGO151.ROM
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index 00000000..13bd55e8
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diff --git a/Source/Images/d_msxroms1/u0/DRAGO154.ROM b/Source/Images/d_msxroms1/u0/DRAGO154.ROM
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index 00000000..628ad78e
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diff --git a/Source/Images/d_msxroms1/u0/DRAIN158.ROM b/Source/Images/d_msxroms1/u0/DRAIN158.ROM
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index 00000000..6a2f6a06
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diff --git a/Source/Images/d_msxroms1/u0/DRCOP150.ROM b/Source/Images/d_msxroms1/u0/DRCOP150.ROM
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index 00000000..aa5b48df
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diff --git a/Source/Images/d_msxroms1/u0/DRUAG159.ROM b/Source/Images/d_msxroms1/u0/DRUAG159.ROM
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index 00000000..86d0e5cf
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diff --git a/Source/Images/d_msxroms1/u0/DUNGE161.ROM b/Source/Images/d_msxroms1/u0/DUNGE161.ROM
new file mode 100644
index 00000000..7be6a3a7
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diff --git a/Source/Images/d_msxroms1/u0/DUNKS162.ROM b/Source/Images/d_msxroms1/u0/DUNKS162.ROM
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index 00000000..c229af83
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diff --git a/Source/Images/d_msxroms1/u0/EAGLE164.ROM b/Source/Images/d_msxroms1/u0/EAGLE164.ROM
new file mode 100644
index 00000000..3f0223c9
--- /dev/null
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new file mode 100644
index 00000000..8e8682e2
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diff --git a/Source/Images/d_msxroms1/u0/ELEVA166.ROM b/Source/Images/d_msxroms1/u0/ELEVA166.ROM
new file mode 100644
index 00000000..0ed7e625
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/ELEVA166.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/ERIKA167.ROM b/Source/Images/d_msxroms1/u0/ERIKA167.ROM
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index 00000000..c0908747
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new file mode 100644
index 00000000..801705f1
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/ISSUN269.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JANKA272.ROM b/Source/Images/d_msxroms1/u0/JANKA272.ROM
new file mode 100644
index 00000000..488fa29a
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JANKA272.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JETSE273.ROM b/Source/Images/d_msxroms1/u0/JETSE273.ROM
new file mode 100644
index 00000000..97c5d428
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JETSE273.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JIGSA274.ROM b/Source/Images/d_msxroms1/u0/JIGSA274.ROM
new file mode 100644
index 00000000..295991b7
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JIGSA274.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JISSE275.ROM b/Source/Images/d_msxroms1/u0/JISSE275.ROM
new file mode 100644
index 00000000..5528d199
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JISSE275.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JPWIN270.ROM b/Source/Images/d_msxroms1/u0/JPWIN270.ROM
new file mode 100644
index 00000000..04e7657d
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JPWIN270.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JUMPC277.ROM b/Source/Images/d_msxroms1/u0/JUMPC277.ROM
new file mode 100644
index 00000000..1d745007
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JUMPC277.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JUMPI279.ROM b/Source/Images/d_msxroms1/u0/JUMPI279.ROM
new file mode 100644
index 00000000..9b76cda9
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JUMPI279.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JUMPJ276.ROM b/Source/Images/d_msxroms1/u0/JUMPJ276.ROM
new file mode 100644
index 00000000..484aee0d
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JUMPJ276.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JUMPL278.ROM b/Source/Images/d_msxroms1/u0/JUMPL278.ROM
new file mode 100644
index 00000000..56358488
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JUMPL278.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JUNOF280.ROM b/Source/Images/d_msxroms1/u0/JUNOF280.ROM
new file mode 100644
index 00000000..728a51da
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JUNOF280.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JYANF281.ROM b/Source/Images/d_msxroms1/u0/JYANF281.ROM
new file mode 100644
index 00000000..4cdd3a98
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JYANF281.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JYANK282.ROM b/Source/Images/d_msxroms1/u0/JYANK282.ROM
new file mode 100644
index 00000000..312e435a
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JYANK282.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/JYANY283.ROM b/Source/Images/d_msxroms1/u0/JYANY283.ROM
new file mode 100644
index 00000000..a38ec42f
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/JYANY283.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KAGEN284.ROM b/Source/Images/d_msxroms1/u0/KAGEN284.ROM
new file mode 100644
index 00000000..ff101dab
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KAGEN284.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KARAM285.ROM b/Source/Images/d_msxroms1/u0/KARAM285.ROM
new file mode 100644
index 00000000..aab310b5
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KARAM285.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KEYST287.ROM b/Source/Images/d_msxroms1/u0/KEYST287.ROM
new file mode 100644
index 00000000..2ff1820a
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KEYST287.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KICKI288.ROM b/Source/Images/d_msxroms1/u0/KICKI288.ROM
new file mode 100644
index 00000000..11e28f0b
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KICKI288.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KINAS289.ROM b/Source/Images/d_msxroms1/u0/KINAS289.ROM
new file mode 100644
index 00000000..8d9bf8f7
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KINAS289.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KINGB290.ROM b/Source/Images/d_msxroms1/u0/KINGB290.ROM
new file mode 100644
index 00000000..48799c65
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KINGB290.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KINGS292.ROM b/Source/Images/d_msxroms1/u0/KINGS292.ROM
new file mode 100644
index 00000000..052e59c5
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KINGS292.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KINNI294.ROM b/Source/Images/d_msxroms1/u0/KINNI294.ROM
new file mode 100644
index 00000000..6d9e0e93
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KINNI294.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KNIGH295.ROM b/Source/Images/d_msxroms1/u0/KNIGH295.ROM
new file mode 100644
index 00000000..586382fc
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KNIGH295.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KNIGH296.ROM b/Source/Images/d_msxroms1/u0/KNIGH296.ROM
new file mode 100644
index 00000000..553593b8
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KNIGH296.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM300.ROM b/Source/Images/d_msxroms1/u0/KONAM300.ROM
new file mode 100644
index 00000000..a3c28167
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM300.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM301.ROM b/Source/Images/d_msxroms1/u0/KONAM301.ROM
new file mode 100644
index 00000000..508cb9c2
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM301.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM302.ROM b/Source/Images/d_msxroms1/u0/KONAM302.ROM
new file mode 100644
index 00000000..a5b250f1
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM302.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM303.ROM b/Source/Images/d_msxroms1/u0/KONAM303.ROM
new file mode 100644
index 00000000..8910179b
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM303.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM304.ROM b/Source/Images/d_msxroms1/u0/KONAM304.ROM
new file mode 100644
index 00000000..425119fa
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM304.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM305.ROM b/Source/Images/d_msxroms1/u0/KONAM305.ROM
new file mode 100644
index 00000000..f2ddc197
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM305.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM306.ROM b/Source/Images/d_msxroms1/u0/KONAM306.ROM
new file mode 100644
index 00000000..fba79319
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM306.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM307.ROM b/Source/Images/d_msxroms1/u0/KONAM307.ROM
new file mode 100644
index 00000000..bc6feec3
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM307.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONAM308.ROM b/Source/Images/d_msxroms1/u0/KONAM308.ROM
new file mode 100644
index 00000000..8b7d9319
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONAM308.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KONEK309.ROM b/Source/Images/d_msxroms1/u0/KONEK309.ROM
new file mode 100644
index 00000000..f450a0e1
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KONEK309.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KUNGF310.ROM b/Source/Images/d_msxroms1/u0/KUNGF310.ROM
new file mode 100644
index 00000000..a6f186a6
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KUNGF310.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KUNGF311.ROM b/Source/Images/d_msxroms1/u0/KUNGF311.ROM
new file mode 100644
index 00000000..c77d1051
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KUNGF311.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/KUNGF312.ROM b/Source/Images/d_msxroms1/u0/KUNGF312.ROM
new file mode 100644
index 00000000..ba6ff72e
Binary files /dev/null and b/Source/Images/d_msxroms1/u0/KUNGF312.ROM differ
diff --git a/Source/Images/d_msxroms1/u0/ROMLIST.TXT b/Source/Images/d_msxroms1/u0/ROMLIST.TXT
new file mode 100644
index 00000000..9bbaed80
--- /dev/null
+++ b/Source/Images/d_msxroms1/u0/ROMLIST.TXT
@@ -0,0 +1,495 @@
+379 LOADING GAMES OUT OF 481 ROMS
+
+Some require keyboard support and/or 2 joystick buttons. They are marked with a '?' in the list below
+Some require the patcher (MSX8P.COM). They are marked with a 'P' in the list below
+Some don't work at all. They are marked with a 'N' in the list below
+
+Y = (271) WORKS
+YP= ( 55) USE MSX8P (PATCHER VERSION NEEDED DUE TO DIRECT VDP/PSG WRITES INSTEAD OF GOING THROUGH THE BIOS)
+? = ( 53) RUNS BUT NOT PLAYABLE - POSSIBLY REQUIRES TWO BUTTON JOYSTICK OR UNSUPPORTED KEYBOARD CONTROLS
+N = DOES NOT WORK
+
+STAT SHORT NAME     LONG NAME (481 ROMS)
+==== ============   ============================================
+ Y   10YAR000.ROM   10-Yard Fight (Japan).rom			
+ N0  3DGOL002.ROM   3-D Golf Simulation (Japan) (High Speed).rom
+ N0  3DGOL003.ROM   3-D Golf Simulation (Japan).rom
+ N0  3DTEN004.ROM   3D Tennis (Japan).rom
+ Y   ACTMA007.ROM   Actman (Japan).rom
+ Y   ADVEN008.ROM   Adven' Chuta! (Japan).rom
+ Y   AEJAP005.ROM   A.E. (Japan).rom
+ Y?  ALBAT009.ROM   Albatros (Japan).rom
+ NP8 ALCAZ010.ROM   Alcazar - The Forgotten Fortress (Japan).rom
+ YP  ALIBA011.ROM   Alibaba and 40 Thieves (Japan).rom
+ YP  ALIEN012.ROM   Alien 8 (Japan).rom
+ YP? ALPHA014.ROM   Alpha Roid (Japan).rom
+ YP  ALPHA015.ROM   Alpha Squadron (Japan).rom
+ Y   AMERI016.ROM   American Truck (Japan).rom
+ YP  ANAZA017.ROM   Anaza - Kaleidoscope Special (Japan).rom
+ Y?  ANGEL018.ROM   Angelo (Japan).rom
+ Y   ANTAR020.ROM   Antarctic Adventure (Europe).rom
+ YP  ANTAR021.ROM   Antarctic Adventure (Japan).rom
+ YP  ANTYJ022.ROM   Anty (Japan).rom
+ Y   AQUAP023.ROM   Aqua Polis SOS (Japan).rom
+ N4  AQUAT024.ROM   Aquattack (Japan).rom
+ Y   ARAMO025.ROM   Aramo (Japan).rom
+ YP  ARKAN026.ROM   Arkanoid (Japan).rom
+ Y   ATHLE027.ROM   Athletic Ball (Japan).rom
+ N   ATHLE028.ROM   Athletic Land (Japan) (Beta).rom
+ YP  ATHLE029.ROM   Athletic Land (Japan).rom
+ Y   ATTAC030.ROM   Attack Four Volley Ball (Japan).rom
+ N4  BACKG032.ROM   Back Gammon (Japan).rom
+ Y   BACKG034.ROM   Backgammon (Europe).rom
+ Y   BACKT033.ROM   Back to the Future (Japan).rom
+ YP  BALAN035.ROM   Balance (Japan).rom
+ Y   BANAN036.ROM   Banana (Japan).rom
+ Y   BANKP037.ROM   Bank Panic (Japan).rom
+ N5  BASIC038.ROM   Basic Lessons 1 (Japan).rom
+ N   BASIC039.ROM   Basic Lessons 2 (Japan).rom
+ N4  BATTE041.ROM   Batten Tanuki no Daibouken (Japan) (v1.03).rom
+ Y   BATTL042.ROM   Battle Cross (Japan).rom
+ Y   BATTL043.ROM   Battleship Clapton II (Japan).rom
+ Y   BCSQU031.ROM   B.C.'s Quest (Japan).rom
+ Y   BEACH044.ROM   Beach-Head (Europe).rom
+ N0  BEAMR045.ROM   Beam Rider (Japan).rom
+ Y   BECKY046.ROM   Becky (Japan).rom
+ Y   BEEFL047.ROM   Bee & Flower (Japan).rom
+ Y   BIFAM048.ROM   Bifamu (Japan).rom
+ Y   BINAR049.ROM   Binary Land (Japan).rom
+ Y   BLACK051.ROM   Black Onyx, The (Japan).rom
+ Y?  BLAGG052.ROM   Blagger MSX (Europe) (Converted From Tape).rom
+ YP  BLOCK053.ROM   Block Hole (Korea) (Unl).rom
+ Y   BLOCK054.ROM   Blockade Runner (Japan).rom
+ Y   BOGGY055.ROM   Boggy '84 (Japan).rom
+ Y   BOING056.ROM   Boing Boing (Spain).rom
+ N8  BOKOS057.ROM   Bokosuka Wars (Japan).rom
+ Y   BOMBE059.ROM   Bomber Man (Japan).rom
+ Y   BOMBE060.ROM   Bomber Man Special (Japan).rom
+ Y   BOOGI061.ROM   Boogie Woogi Jungle (Japan).rom
+ Y?  BOOME062.ROM   Boomerang (Japan).rom
+ Y   BOSCO064.ROM   Bosconian (Japan).rom
+ Y   BOUKE065.ROM   Bouken Roman - Dota (Japan).rom
+ Y   BOULD066.ROM   Boulder Dash (Japan).rom
+ Y   BOUNC067.ROM   Bouncing Block (Spain).rom
+ N0  BRAIN068.ROM   Brain, The (Japan).rom
+ N0  BREAK070.ROM   Break Out (Japan).rom
+ Y   BROTH071.ROM   Brother Adventure (Korea) (Unl).rom
+ Y   BRUCE072.ROM   Bruce Lee (Japan).rom
+ YP  BUBBL073.ROM   Bubble Bobble (Korea) (Unl).rom
+ N0  BURGE074.ROM   Burgertime (Japan).rom
+ Y   BURUT075.ROM   Buru To Marty Kikiippatsu - Inspecteur Z (Japan).rom
+ Y   BUTAM076.ROM   Butam Pants (Japan).rom
+ Y   CABBA078.ROM   Cabbage Patch Kids (Japan).rom
+ YP? CANDO079.ROM   Candoo Ninja (Japan).rom
+ Y   CANNO080.ROM   Cannon Ball (Japan).rom
+ Y   CANNO081.ROM   Cannon Fighter (Japan).rom
+ Y   CAPTA082.ROM   Captain Chef (Japan).rom
+ Y   CARFI083.ROM   Car Fighter (Japan).rom
+ YP  CARJA084.ROM   Car Jamboree (Japan).rom
+ Y   CARRA085.ROM   Car-Race (Japan).rom
+ Y   CASIO086.ROM   Casio Daishogai Keiba (Japan).rom
+ Y   CASIO087.ROM   Casio Pachinko-U.F.O. (Japan).rom
+ Y   CASIO088.ROM   Casio Ski Command (Japan).rom
+ Y   CASIO089.ROM   Casio Worldopen (Japan).rom
+ Y   CASTL090.ROM   Castle Excellent (Japan).rom
+ Y   CASTL091.ROM   Castle, The (Japan).rom
+ Y   CHACK092.ROM   Chack'n Pop (Japan).rom
+ Y   CHALL093.ROM   Challenge Derby (Japan).rom
+ Y   CHAMP094.ROM   Champion Boxing (Japan).rom
+ Y?  CHAMP095.ROM   Champion Ice Hockey (Japan).rom
+ Y   CHAMP096.ROM   Champion Kendou (Japan).rom
+ Y   CHAMP097.ROM   Champion Pro Wrestling (Japan).rom
+ Y   CHAMP098.ROM   Champion Soccer (Japan).rom
+ Y   CHAMP099.ROM   Championship Lode Runner (Japan).rom
+ Y?  CHECK100.ROM   Checkers in Tantan Tanuki (Japan).rom
+ NP4 CHESS101.ROM   Chess (Japan).rom
+ NP4 CHESS102.ROM   Chess Game, The (Europe).rom
+ Y   CHOPL103.ROM   Choplifter (Japan).rom
+ YP  CHORO104.ROM   Choro Q (Japan).rom
+ N4  CHUGA105.ROM   Chugaku Hisshu Eibunpo 1 (Japan).rom
+ Y   CIRCU106.ROM   Circus Charlie (Japan).rom
+ Y   CITYC107.ROM   City Connection (Japan).rom
+ YP  COAST108.ROM   Coaster Race (Japan).rom
+ Y   COLOR109.ROM   Color Ball (Japan).rom
+ N0  COLUM110.ROM   Columns (Japan).rom
+ Y   COMEC112.ROM   Comecocos (Spain).rom
+ YP  COMEO111.ROM   Come On! Picot (Japan).rom
+ N0  COMET113.ROM   Comet Tail (Japan).rom
+ Y   COMIC114.ROM   Comic Bakery (Japan).rom
+ YP  COMPU115.ROM   Computer Billiards (Japan).rom
+ NP4 COMPU116.ROM   Computer Nyuumon - Computer Lessons (Japan).rom
+ NP5 COMPU117.ROM   Computer Othello (Japan).rom
+ YP  COMPU118.ROM   Computer Pachinko (Japan).rom
+ Y   CONDO119.ROM   Con-Dori (Japan).rom
+ N8  COSMO121.ROM   Cosmo (Japan).rom
+ Y   COSMO122.ROM   Cosmo-Explorer (Japan).rom
+ N0  COURA123.ROM   Courageous Perseus (Japan).rom
+ N0  CRAZY125.ROM   Crazy Bullet (Japan).rom
+ Y   CRAZY126.ROM   Crazy Cars (Europe).rom
+ N0  CRAZY127.ROM   Crazy Train (Japan).rom
+ Y   CRUSA129.ROM   Crusader (Japan).rom
+ N4  CSOJA077.ROM   C-So! (Japan).rom
+ N4  DAIDA131.ROM   Daidasso (Japan).rom
+ Y   DAMBU133.ROM   Dam Busters, The (Japan).rom
+ N0  DANGE134.ROM   Danger X4 (Japan).rom
+ Y   DAVID135.ROM   David II (Japan).rom
+ Y   DDAYJ130.ROM   D-Day (Japan).rom
+ N0  DECAT137.ROM   Decathlon (Japan).rom
+ N0  DEMON140.ROM   Demon Crystal, The (Japan).rom
+ Y   DEVIL142.ROM   Devil's Heaven (Japan).rom
+ Y   DIGDU143.ROM   Dig Dug (Japan).rom
+ YP  DIPDI145.ROM   Dip Dip (Spain).rom
+ Y   DOKID146.ROM   Doki Doki Penguin Land (Japan).rom
+ Y   DOORD147.ROM   Doordoor (Japan).rom
+ N4  DOROD148.ROM   Dorodon (Japan).rom
+ YP  DOUBL149.ROM   Double Dragon (Korea) (Unl).rom
+ Y?  DRCOP150.ROM   Dr. Copy (Japan).rom
+ Y   DRAGO151.ROM   Dragon Attack (Japan).rom
+ Y   DRAGO154.ROM   Dragon Slayer (Japan).rom
+ YP  DRAIN158.ROM   Drainer (Japan).rom
+ Y   DRUAG159.ROM   Druaga no Tou (Japan).rom
+ Y?  DUNGE161.ROM   Dungeon Master (Japan).rom
+ Y   DUNKS162.ROM   Dunk Shot (Japan).rom
+ NF  EAGLE164.ROM   Eagle Fighter (Japan).rom
+ N4  EGGER165.ROM   Eggerland Mystery (Japan).rom
+ Y   ELEVA166.ROM   Elevator Action (Japan).rom
+ Y?  ERIKA167.ROM   Erika (Japan).rom
+ Y   EXAIN168.ROM   Exa Innova (Japan).rom
+ N0  EXCHA169.ROM   Exchanger (Japan).rom
+ Y   EXERI170.ROM   Exerion (Japan).rom
+ Y   EXERI171.ROM   Exerion II - Zorni (Japan).rom
+ YP  EXOID172.ROM   Exoide-Z (Japan).rom
+ Y   EXOID173.ROM   Exoide-Z Area 5 (Japan).rom
+ N8  F16FI175.ROM   F16 Fighting Falcon (Japan).rom
+ Y   FAIRY177.ROM   Fairy (Japan).rom
+ YP  FATET176.ROM   Fa Tetris (Korea) (Unl).rom
+ Y   FATHO183.ROM   Fathom (Japan).rom
+ Y   FINAL184.ROM   Final Justice (Japan).rom
+ Y   FINAL185.ROM   Final Mahjong (Japan).rom
+ Y   FIRER187.ROM   Fire Rescue (Japan).rom
+ Y   FLAPP188.ROM   Flappy (Japan).rom
+ Y   FLAPP189.ROM   Flappy - Limited 85 (Japan).rom
+ YP? FLASH190.ROM   Flash Point (Korea) (Unl).rom
+ Y   FLASH191.ROM   Flash Splash (Japan).rom
+ Y   FLICK192.ROM   Flicky (Japan).rom
+ Y   FLICS193.ROM   Flics, Les (France).rom
+ Y   FLIPP196.ROM   Flipper Slipper (Japan).rom
+ Y   FORMA197.ROM   Formation Z (Japan).rom
+ YP  FROGG198.ROM   Frogger (Japan).rom
+ Y   FRONT199.ROM   Front Line (Japan).rom
+ Y   FRUIT200.ROM   Fruit Search (Japan).rom
+ Y   FUNKY201.ROM   Funky Mouse (Japan).rom
+ N8  FUTBO202.ROM   Futbol (Spain).rom
+ Y   FUUNT203.ROM   Fuun Takeshijyou (Japan).rom
+ Y   GALAG204.ROM   Galaga (Japan).rom
+ Y   GALAX205.ROM   Galaxian (Japan).rom
+ N0  GAMEL208.ROM   Game Land (Japan).rom
+ Y?  GAMEM209.ROM   Game Master (Europe).rom
+ Y?  GAMEM210.ROM   Game Master (Japan).rom
+ N0  GANGM213.ROM   Gang Master (Japan).rom
+ YP  GHOST216.ROM   Ghostbusters (Europe).rom
+ Y?  GLIDE217.ROM   Glider (Japan).rom
+ Y   GOKIB218.ROM   Gokiburi Daisakusen - Bug Bomb (Japan).rom
+ N0  GOLFG219.ROM   Golf Game (Japan).rom
+ YP? GOMOK221.ROM   Gomok Narabe - Omo Go (Japan).rom
+ Y   GOONI222.ROM   Goonies, The (Japan).rom
+ Y   GPWOR223.ROM   GP World (Japan).rom
+ N9  GREEN224.ROM   Green Beret (Europe).rom
+ Y   GROGS225.ROM   Grog's Revenge (Japan).rom
+ Y   GUARD226.ROM   Guardic (Japan).rom
+ Y   GULKA227.ROM   Gulkave (Japan).rom
+ YP  GUNFR228.ROM   Gun Fright (Japan).rom
+ Y   GUNJI229.ROM   Gunjin Shougi Mars (Japan).rom
+ YP  GYROD230.ROM   Gyrodine (Japan).rom
+ N0  HEROJ231.ROM   H.E.R.O. (Japan).rom
+ Y   HADES232.ROM   Hades no Monsho (Japan).rom
+ Y   HAFAN233.ROM   Hafanuda Koi Koi - Gostop Godori (Japan).rom
+ YP  HANAF235.ROM   Hanafuta (Japan).rom
+ Y   HANGO236.ROM   Hang-On (Japan).rom
+ Y   HARAP237.ROM   Harapeko Pakkun (Japan).rom
+ Y   HAUNT240.ROM   Haunted Boynight (Japan).rom
+ Y   HEAVY241.ROM   Heavy Boxing (Japan).rom
+ Y   HEIST242.ROM   Heist, The (Japan).rom
+ Y   HELIT243.ROM   Helitank (Japan).rom
+ Y   HIGHW244.ROM   High Way Star (Japan).rom
+ Y   HIGHW245.ROM   High Way Star (Korea).rom
+ YP? HISYA246.ROM   Hisya (Japan).rom
+ Y   HITSU247.ROM   Hitsuji Yai - Preety Sheep (Japan).rom
+ Y   HOLEI248.ROM   Hole in One (Japan).rom
+ Y?  HOLEI249.ROM   Hole in One Professional (Japan).rom
+ Y   HONKB250.ROM   Honkball (Japan).rom
+ YP  HOPPE251.ROM   Hopper (Europe).rom
+ Y?  HUDSO252.ROM   Hudson 3D Golf (Japan).rom
+ Y   HUSTL253.ROM   Hustle! Chumy (Japan).rom
+ Y   HYDLI254.ROM   Hydlide (Japan).rom
+ Y   HYPER257.ROM   Hyper Olympic 1 (Japan).rom
+ Y   HYPER258.ROM   Hyper Olympic 2 (Japan).rom
+ Y?  HYPER259.ROM   Hyper Rally (Japan).rom
+ Y   HYPER260.ROM   Hyper Sports 1 (Japan).rom
+ Y   HYPER261.ROM   Hyper Sports 2 (Japan).rom
+ N4  HYPER262.ROM   Hyper Sports 3 (Japan).rom
+ Y   ICEWO263.ROM   Ice World (Japan).rom
+ Y   IGANI264.ROM   Iga Ninpouten - Small Ninja (Japan).rom
+ Y   IGANI265.ROM   Iga Ninpouten 2 - Small Ninja 2 (Japan).rom
+ Y   INDIA266.ROM   Indian no Bouken (Japan).rom
+ N0  IRIEG267.ROM   Iriegas (Japan).rom
+ Y   IRIEG268.ROM   Iriegas - Theseus (Japan).rom
+ Y   ISSUN269.ROM   Issunhoushi No Donnamondai (Japan).rom
+ Y   JPWIN270.ROM   J.P. Winkle (Japan).rom
+ Y   JANKA272.ROM   Janka (Japan).rom
+ Y   JETSE273.ROM   Jet Set Willy (Japan).rom
+ Y   JIGSA274.ROM   Jigsaw Set (Japan).rom
+ Y   JISSE275.ROM   Jissen - 4-nin Mahjong (Japan).rom
+ Y   JUMPJ276.ROM   Jump (Japan).rom
+ Y   JUMPC277.ROM   Jump Coaster (Japan).rom
+ YP  JUMPL278.ROM   Jump Land (Japan).rom
+ Y   JUMPI279.ROM   Jumping Rabbit (Japan).rom
+ N0  JUNOF280.ROM   Juno First (Japan).rom
+ Y   JYANF281.ROM   Jyan Friend (Japan).rom
+ Y   JYANK282.ROM   Jyankyo (Japan).rom
+ Y   JYANY283.ROM   Jyanyuu (Japan).rom
+ N4  KAGEN284.ROM   Kage no Densetsu - Legend of Kage, The (Japan).rom
+ N0  KARAM285.ROM   Karamaru (Japan).rom
+ N0  KEYST287.ROM   Keystone Kapers (Japan).rom
+ YP  KICKI288.ROM   Kick It (Japan).rom
+ Y   KINAS289.ROM   Kinasai (Japan) (Unl).rom
+ Y   KINGB290.ROM   King & Balloon (Japan).rom
+ Y   KINGS292.ROM   King's Valley (Japan, Europe).rom
+ Y   KINNI294.ROM   Kinnikuman - Muscle Man (Japan).rom
+ YP  KNIGH295.ROM   Knight Lore (Japan).rom
+ Y   KNIGH296.ROM   Knightmare - Majou Densetsu (Japan).rom
+ Y   KONAM300.ROM   Konami's Baseball (Japan).rom
+ Y   KONAM301.ROM   Konami's Billiards (Europe).rom
+ Y   KONAM302.ROM   Konami's Boxing (Japan).rom
+ N4  KONAM303.ROM   Konami's Football (Europe).rom
+ N4  KONAM304.ROM   Konami's Golf (Japan).rom
+ Y?  KONAM305.ROM   Konami's Mahjong (Japan).rom
+ Y?  KONAM306.ROM   Konami's Ping-Pong (Japan).rom
+ N4  KONAM307.ROM   Konami's Soccer (Japan).rom
+ Y   KONAM308.ROM   Konami's Tennis (Japan).rom
+ Y   KONEK309.ROM   Koneko no Daibouken - Catboy (Japan).rom
+ Y   KUNGF310.ROM   Kung Fu Acho (Japan).rom
+ Y   KUNGF311.ROM   Kung Fu Master (Japan).rom
+ Y   KUNGF312.ROM   Kung Fu Taigun (Japan).rom
+ N0  LADDE313.ROM   Ladder Building (Japan).rom
+ YP  LAPTI314.ROM   Laptick 2 (Japan).rom
+ Y   LEMAN315.ROM   Le Mans 2 (Europe).rom
+ N8  LEONA317.ROM   Leonard (Spain).rom
+ Y   LODER319.ROM   Lode Runner (Japan).rom
+ Y   LODER320.ROM   Lode Runner II (Japan).rom
+ N0  LORDO321.ROM   Lord Over (Japan).rom
+ N3  LOTLO322.ROM   Lot Lot (Japan).rom
+ Y   LUNAR323.ROM   Lunar Ball (Japan).rom
+ N7  MACAT325.ROM   Mac Attack (Europe).rom
+ Y   MACHI326.ROM   Machinegun Joe vs The Mafia (Japan).rom
+ Y   MACRO327.ROM   Macross (Japan).rom
+ Y   MAGIC328.ROM   Magical Kid Wiz (Japan).rom
+ Y   MAGIC329.ROM   Magical Tree (Japan).rom
+ Y   MANES331.ROM   Manes (Japan).rom
+ Y   MAPPY332.ROM   Mappy (Japan).rom
+ N0  MARIN334.ROM   Marine Battle (Japan).rom
+ YP? MARSI335.ROM   Mars II (Japan).rom
+ Y?  MASTE337.ROM   Master Chess (Europe).rom
+ Y   MEGAL338.ROM   Megalopolis SOS (Japan).rom
+ Y?  MIDNI340.ROM   Midnight Brothers (Japan).rom
+ Y?  MIDNI341.ROM   Midnight Building (Japan).rom
+ Y?  MIDWA342.ROM   Midway (Japan).rom
+ Y?  MILCA343.ROM   Mil Caras (Spain).rom
+ Y   MINIG344.ROM   Mini Golf (Japan).rom
+ Y   MOAIN347.ROM   Moai no Hibou (Japan).rom
+ Y   MOBIL348.ROM   Mobile Planet Suthirus - Approach from the Westgate (Japan).rom
+ Y   MOBIL349.ROM   Mobile-Suit Gundam - Last Shooting (Japan).rom
+ YP  MOKAR350.ROM   Mokarimakka (Japan).rom
+ N0  MOLEJ351.ROM   Mole (Japan).rom
+ Y?  MOLEM352.ROM   Mole Mole 2 (Japan).rom
+ YP? MONKE353.ROM   Monkey Academy (Japan).rom
+ Y   MONST354.ROM   Monster's Fair (Japan).rom
+ N0  MOONL355.ROM   Moon Landing (Japan).rom
+ Y   MOONP356.ROM   Moon Patrol (Japan).rom
+ Y   MOONS357.ROM   Moonsweeper (Japan).rom
+ N4  MOPIR358.ROM   Mopiranger (Japan).rom
+ NC  MORIT359.ROM   Morita Kazuo no Othello (Japan).rom
+ YP? MOUSE360.ROM   Mouser (Japan).rom
+ Y   MRCHI361.ROM   Mr. Chin (Japan).rom
+ Y?  MRDOJ362.ROM   Mr. Do (Japan).rom
+ Y   MRDOS364.ROM   Mr. Do's Wild Ride (Japan).rom
+ Y   MRDOV363.ROM   Mr. Do vs Unicorns (Japan).rom
+ N0  MSX21365.ROM   MSX 21 (Japan).rom
+ Y   MSXBA366.ROM   MSX Baseball (Japan).rom
+ Y   MSXBA367.ROM   MSX Baseball II National (Japan).rom
+ N0  MSXDE368.ROM   MSX Derby (Japan).rom
+ Y   MSXRU369.ROM   MSX Rugby (Japan).rom
+ Y   MSXSO370.ROM   MSX Soccer (Japan).rom
+ N0  NAUSI372.ROM   Nausicaa (Japan).rom
+ Y   NESSE378.ROM   Nessen Koushiyen (Japan).rom
+ YP  NIGHT379.ROM   Night Shade (Japan).rom
+ Y   NINJA380.ROM   Ninja Jajamaru-kun (Japan).rom
+ YP  NINJA381.ROM   Ninja Princess (Japan).rom
+ Y   NINJA382.ROM   Ninjakun (Japan).rom
+ Y   NINJA383.ROM   Ninjakun Majou (Japan).rom
+ Y   NINJY384.ROM   Ninjya Kage (Japan).rom
+ Y?  NYANN386.ROM   Nyan Nyan Pro Wrestling (Japan).rom
+ Y   NYORO387.ROM   Nyorols (Japan).rom
+ Y   OILSW389.ROM   Oil's Well (Japan).rom
+ Y?  OKAMI390.ROM   Okami no Su (Japan).rom
+ Y   OMACF388.ROM   O'Mac Farmer (Japan).rom
+ Y   OTHEL391.ROM   Othello (Japan).rom
+ Y   OYOID392.ROM   Oyoide Tango (Japan).rom
+ Y   PACHI394.ROM   Pachi Com (Japan).rom
+ Y   PACMA393.ROM   Pac-Man (Japan).rom
+ Y   PAIPA395.ROM   Pai Panic (Japan).rom
+ N0  PAIRS396.ROM   Pairs (Japan).rom
+ Y   PANTH397.ROM   Panther (Japan).rom
+ N0  PASSB399.ROM   Pass Ball (Japan).rom
+ YP? PASTF400.ROM   Pastfinder (Japan).rom
+ Y?  PAYLO401.ROM   Pay Load (Japan).rom
+ Y   PEETA402.ROM   Peetan (Japan).rom
+ Y   PEGAS403.ROM   Pegasus (Japan).rom
+ Y   PENGU405.ROM   Penguin-kun Wars (Japan).rom
+ YP? PICOP406.ROM   Pico Pico (Japan).rom
+ Y   PICTU407.ROM   Picture Puzzle (Japan).rom
+ Y?  PILLB408.ROM   Pillbox (Japan).rom
+ Y?  PINEA410.ROM   Pine Applin (Japan).rom
+ YP? PINGB411.ROM   Pingball Maker (Japan).rom
+ YP  PINKY412.ROM   Pinky Chase (Japan).rom
+ Y   PIPIJ413.ROM   Pipi (Japan).rom
+ Y   PIPPO414.ROM   Pippols (Japan).rom
+ YP  PITFA415.ROM   Pitfall II - Lost Caverns (Japan).rom
+ NP8 PITFA416.ROM   Pitfall! (Japan).rom
+ Y   PLAYB417.ROM   Play Ball (Japan).rom
+ N4  POINY418.ROM   Poiny X Senryosakusen - Operation Thanksgiving (Japan).rom
+ Y   POLIC419.ROM   Police Story, The (Japan).rom
+ YP  POOYA420.ROM   Pooyan (Japan).rom
+ Y   POPPA421.ROM   Poppaq the Fish (Japan).rom
+ N4  PROFE423.ROM   Professional Baseball (Japan).rom
+ YP? PROFE424.ROM   Professional Mahjong (Japan).rom
+ Y   PROTE425.ROM   Protector, The (Japan).rom
+ Y   PUZZL427.ROM   Puzzle Panic (Japan).rom
+ Y   PYRAM428.ROM   Pyramid Warp (Japan).rom
+ Y   QBERT429.ROM   Q-bert (Japan).rom
+ Y   QUEEN430.ROM   Queen's Golf (Japan).rom
+ Y   RAIDO432.ROM   Raid on Bungeling Bay (Japan).rom
+ Y   RALLY433.ROM   Rally-X (Japan).rom
+ YP? RAMBO434.ROM   Rambo (Japan).rom
+ YP? REALT435.ROM   Real Tennis (Japan).rom
+ Y   REDZO436.ROM   Red Zone (Japan).rom
+ N0  RENJU438.ROM   Renju & Ojama Dogs (Japan).rom
+ Y   RISEO439.ROM   Rise Out from Dungeons (Japan).rom
+ N0  RIVER440.ROM   River Raid (Japan).rom
+ Y   ROADF441.ROM   Road Fighter (Japan).rom
+ Y   ROBOF443.ROM   Robofrog (Japan).rom
+ NP8 ROCKN444.ROM   Rock'n Bolt (Japan).rom
+ Y   ROGER445.ROM   Roger Rubbish (Europe).rom
+ Y?  ROLLE446.ROM   Roller Ball (Japan).rom
+ N0  ROTOR447.ROM   Rotors (Japan).rom
+ YP  SASAJ450.ROM   Sasa (Japan).rom
+ Y?  SAURU451.ROM   Saurus Land (Japan).rom
+ Y   SCARL452.ROM   Scarlet 7 - The Mightiest Women (Japan).rom
+ Y   SCION453.ROM   Scion (Japan).rom
+ N0  SCOPE454.ROM   Scope On - Fight in Space (Japan).rom
+ Y   SCRAM455.ROM   Scramble Eggs (Japan).rom
+ Y   SEAHU456.ROM   Sea Hunter (Europe).rom
+ Y   SENJY458.ROM   Senjyo (Japan).rom
+ N4  SEWER459.ROM   Sewer Sam (Japan).rom
+ Y   SHOUG460.ROM   Shougi (Japan).rom
+ N4  SHOUG461.ROM   Shougi 2 (Japan).rom
+ N0  SHOUG462.ROM   Shougi Game (Japan).rom
+ Y   SHOUG463.ROM   Shougi Meijin (Japan).rom
+ Y   SHOUG464.ROM   Shougi Sinan 1 (Japan).rom
+ YP  SHOUT465.ROM   Shout Match (Japan).rom
+ YP  SINBA466.ROM   Sinbad (Japan).rom
+ YP  SKOOT467.ROM   Skooter (Japan).rom
+ Y   SKYGA468.ROM   Sky Galdo (Japan).rom
+ Y   SKYJA469.ROM   Sky Jaguar (Japan).rom
+ N8  SLAPS470.ROM   Slapshot (Spain).rom
+ Y   SNAKE471.ROM   Snake It (Europe).rom
+ Y   SOUKO473.ROM   Soukoban (Japan).rom
+ Y   SPACE474.ROM   Space Camp (Japan).rom
+ Y   SPACE475.ROM   Space Invaders (Japan).rom
+ Y   SPACE476.ROM   Space Maze Attack (Japan).rom
+ Y   SPACE477.ROM   Space Trouble (Japan).rom
+ Y   SPACE478.ROM   Space Walk (Europe).rom
+ N0  SPARK479.ROM   Sparkie (Japan).rom
+ Y   SPELU480.ROM   Spelunker (Japan).rom
+ N8  SPIDE481.ROM   Spider, The (Japan).rom
+ Y   SQUAR483.ROM   Square Dancer (Japan).rom
+ Y   SQUIS484.ROM   Squish'em (Japan).rom
+ Y   STARB485.ROM   Star Blazer (Japan).rom
+ N0  STARC486.ROM   Star Command (Japan).rom
+ Y   STARF487.ROM   Star Force (Japan).rom
+ Y   STARS488.ROM   Star Soldier (Japan).rom
+ Y?  START489.ROM   Star Trap (Japan).rom
+ Y?  STARS490.ROM   Starship Simulator (Japan).rom
+ Y   STEPU491.ROM   Step Up (Japan).rom
+ N8  STEPP492.ROM   Stepper (Japan).rom
+ Y   STONE493.ROM   Stone of Wisdom, The (Japan).rom
+ N4  STRAN494.ROM   Strange Loop (Japan).rom
+ Y   SUPAR495.ROM   Suparobo (Japan).rom
+ N0  SUPER496.ROM   Super Billiards (Japan).rom
+ YP? SUPER499.ROM   Super Boy I (Korea) (Unl).rom
+ YP? SUPER500.ROM   Super Boy II (Korea) (Unl).rom
+ YP  SUPER501.ROM   Super Bubble Bobble (Korea) (Unl).rom
+ NP4 SUPER502.ROM   Super Cobra (Japan).rom
+ YP  SUPER503.ROM   Super Columns (Japan).rom
+ YP  SUPER504.ROM   Super Cross Force (Europe).rom
+ Y   SUPER505.ROM   Super Drinker (Japan).rom
+ YP  SUPER506.ROM   Super Golf (Japan).rom
+ NP8 SUPER508.ROM   Super Pachinko (Japan).rom
+ Y   SUPER510.ROM   Super Snake (Japan).rom
+ Y   SUPER511.ROM   Super Soccer (Japan).rom
+ Y   SUPER512.ROM   Super Tennis (Japan).rom
+ NP4 SUPER513.ROM   Super Tripper (Spain).rom
+ YP  SWEET514.ROM   Sweet Acorn (Japan).rom
+ N4  SWING515.ROM   Swing (Japan).rom
+ Y   TANKB517.ROM   Tank Battalion (Japan).rom
+ Y   TATIC518.ROM   Tatica (Japan).rom
+ Y   TAWAR519.ROM   Tawara-kun (Japan).rom
+ Y   TEARO520.ROM   Tear of Nile (Japan).rom
+ NP8 TELEB521.ROM   Telebunnie (Japan).rom
+ Y   TENSA522.ROM   Tensai Rabbian Daifunsen (Japan).rom
+ Y?  TENSI523.ROM   Tensidachino Gogo (Japan).rom
+ YP  TENSI524.ROM   Tension (Spain).rom
+ NP8 TETRA525.ROM   Tetra Horror (Japan).rom
+ Y   TETRI526.ROM   Tetris (Korea) (Unl).rom
+ NP8 TETSU527.ROM   Tetsuman (Japan).rom
+ Y   THEXD528.ROM   Thexder (Japan).rom
+ Y?  THUND529.ROM   Thunder Ball (Japan).rom
+ N6  THUND530.ROM   Thunderbolt (Japan).rom
+ YP  TIMEP531.ROM   Time Pilot (Japan).rom
+ YP  TOPPL534.ROM   Topple Zip (Japan).rom
+ Y   TOPRO533.ROM   Top Roller! (Japan).rom
+ Y   TRACK535.ROM   Track & Field 1 (Europe).rom
+ Y   TRACK536.ROM   Track & Field 2 (Europe).rom
+ Y   TRAFF537.ROM   Traffic (Japan).rom
+ N0  TRIAL538.ROM   Trial Ski (Japan).rom
+ Y   TRICK539.ROM   Trick Boy (Japan).rom
+ YP  TRITO540.ROM   Tritorn (Japan).rom
+ N0  TRUMP541.ROM   Trumpaid (Japan).rom
+ N8  TURBO543.ROM   Turboat (Japan).rom
+ Y   TWINB544.ROM   Twin Bee (Japan).rom
+ YP  TWINH545.ROM   Twin Hammer (Europe).rom
+ Y   TZRGR546.ROM   TZR - Grand Prix Rider (Japan).rom
+ Y   ULTRA547.ROM   Ultraman (Japan).rom
+ YP? VENUS549.ROM   Venus Fire (Japan).rom
+ NP4 VIDEO550.ROM   Video Hustler (Japan).rom
+ Y   VOLGU551.ROM   Volguard (Japan).rom
+ Y   WARPW552.ROM   Warp & Warp (Japan).rom
+ YP  WARRO553.ROM   Warroid (Japan).rom
+ Y?  WATER554.ROM   Water Driver (Japan).rom
+ Y   WONDE556.ROM   Wonder Boy (Japan).rom
+ NP4 WRANG557.ROM   Wrangler (Spain).rom
+ NP4 WRECK558.ROM   Wreck, The (Europe).rom
+ YP  XYXOL559.ROM   Xyxolog (Japan).rom
+ N8  YABYU560.ROM   Yab Yum (Netherlands).rom
+ Y   YELLO561.ROM   Yellow Submarine (Japan).rom
+ Y   YIEAR562.ROM   Yie Ar Kung-Fu (Japan).rom
+ N4  YIEAR563.ROM   Yie Ar Kung-Fu II - The Emperor Yie-Gah (Japan).rom
+ YP  YOKAI564.ROM   Yokai Tanken Chimachima (Japan).rom
+ Y   ZAIDE566.ROM   Zaider - Battle of Peguss (Japan).rom
+ Y   ZANAC567.ROM   Zanac (Japan) (v2).rom
+ Y   ZANAC568.ROM   Zanac (Japan).rom
+ Y   ZAXXO569.ROM   Zaxxon (Japan).rom
+ N0  ZENJI570.ROM   Zenji (Japan).rom
+ Y   ZEXAS571.ROM   Zexas Limited (Japan).rom
+ Y   ZOOM9572.ROM   Zoom 909 (Japan).rom
+================= TESTED ALL ABOVE =================
diff --git a/Source/Images/d_msxroms2/ReadMe.txt b/Source/Images/d_msxroms2/ReadMe.txt
new file mode 100644
index 00000000..be48416a
--- /dev/null
+++ b/Source/Images/d_msxroms2/ReadMe.txt
@@ -0,0 +1,19 @@
+===== MSX ROMs Disk for RomWBW =====
+
+This is disk 2 of 2 of the collection of MSX ROMs as provided by Les 
+Bird (ROM filenames L-Z).  These ROMs are "run" by using the 
+appropriate variant of Les' MSX8 ROM loader.  You can download the 
+loader binaries from https://github.com/lesbird/MSX8.  You will need
+appropriate hardware to run the loader.
+
+Please review the file ROMLIST.TXT for information on the current
+operational status of the ROM and it's long file name/description.
+
+This disk (RomWBW slice) is not automatically included with the
+RomWBW "combo" disk images.  You can simply add it to a combo
+image by appending it to the end.  After booting your system,
+you can use the ASSIGN command to map the slice to a drive letter.
+Refer to the RomWBW User Guide for more information on this
+process.
+
+-- WBW 11:15 AM 8/21/2024
diff --git a/Source/Images/d_msxroms2/u0/LADDE313.ROM b/Source/Images/d_msxroms2/u0/LADDE313.ROM
new file mode 100644
index 00000000..019fe244
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LADDE313.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LAPTI314.ROM b/Source/Images/d_msxroms2/u0/LAPTI314.ROM
new file mode 100644
index 00000000..9f8cb850
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LAPTI314.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LEMAN315.ROM b/Source/Images/d_msxroms2/u0/LEMAN315.ROM
new file mode 100644
index 00000000..e56f0232
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LEMAN315.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LEONA317.ROM b/Source/Images/d_msxroms2/u0/LEONA317.ROM
new file mode 100644
index 00000000..2c32d4d2
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LEONA317.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LODER319.ROM b/Source/Images/d_msxroms2/u0/LODER319.ROM
new file mode 100644
index 00000000..088e5890
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LODER319.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LODER320.ROM b/Source/Images/d_msxroms2/u0/LODER320.ROM
new file mode 100644
index 00000000..ed6bfb99
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LODER320.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LORDO321.ROM b/Source/Images/d_msxroms2/u0/LORDO321.ROM
new file mode 100644
index 00000000..add678c5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LORDO321.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LOTLO322.ROM b/Source/Images/d_msxroms2/u0/LOTLO322.ROM
new file mode 100644
index 00000000..8e261c7a
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LOTLO322.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/LUNAR323.ROM b/Source/Images/d_msxroms2/u0/LUNAR323.ROM
new file mode 100644
index 00000000..e521957e
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/LUNAR323.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MACAT325.ROM b/Source/Images/d_msxroms2/u0/MACAT325.ROM
new file mode 100644
index 00000000..e27a9947
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MACAT325.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MACHI326.ROM b/Source/Images/d_msxroms2/u0/MACHI326.ROM
new file mode 100644
index 00000000..0da315b1
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MACHI326.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MACRO327.ROM b/Source/Images/d_msxroms2/u0/MACRO327.ROM
new file mode 100644
index 00000000..c4e0fbc6
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MACRO327.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MAGIC328.ROM b/Source/Images/d_msxroms2/u0/MAGIC328.ROM
new file mode 100644
index 00000000..a61f859f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MAGIC328.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MAGIC329.ROM b/Source/Images/d_msxroms2/u0/MAGIC329.ROM
new file mode 100644
index 00000000..dca241dd
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MAGIC329.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MANES331.ROM b/Source/Images/d_msxroms2/u0/MANES331.ROM
new file mode 100644
index 00000000..86473760
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MANES331.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MAPPY332.ROM b/Source/Images/d_msxroms2/u0/MAPPY332.ROM
new file mode 100644
index 00000000..54e5a534
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MAPPY332.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MARIN334.ROM b/Source/Images/d_msxroms2/u0/MARIN334.ROM
new file mode 100644
index 00000000..d7ae4d8f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MARIN334.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MARSI335.ROM b/Source/Images/d_msxroms2/u0/MARSI335.ROM
new file mode 100644
index 00000000..7bd22b4d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MARSI335.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MASTE337.ROM b/Source/Images/d_msxroms2/u0/MASTE337.ROM
new file mode 100644
index 00000000..6b96a20e
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MASTE337.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MEGAL338.ROM b/Source/Images/d_msxroms2/u0/MEGAL338.ROM
new file mode 100644
index 00000000..ebaf3722
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MEGAL338.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MIDNI340.ROM b/Source/Images/d_msxroms2/u0/MIDNI340.ROM
new file mode 100644
index 00000000..be632be2
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/MIDNI340.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/MIDNI341.ROM b/Source/Images/d_msxroms2/u0/MIDNI341.ROM
new file mode 100644
index 00000000..3277ff47
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new file mode 100644
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diff --git a/Source/Images/d_msxroms2/u0/MILCA343.ROM b/Source/Images/d_msxroms2/u0/MILCA343.ROM
new file mode 100644
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diff --git a/Source/Images/d_msxroms2/u0/MOAIN347.ROM b/Source/Images/d_msxroms2/u0/MOAIN347.ROM
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diff --git a/Source/Images/d_msxroms2/u0/MOKAR350.ROM b/Source/Images/d_msxroms2/u0/MOKAR350.ROM
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new file mode 100644
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diff --git a/Source/Images/d_msxroms2/u0/MONKE353.ROM b/Source/Images/d_msxroms2/u0/MONKE353.ROM
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new file mode 100644
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new file mode 100644
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index 00000000..3b3a15cc
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diff --git a/Source/Images/d_msxroms2/u0/PUZZL427.ROM b/Source/Images/d_msxroms2/u0/PUZZL427.ROM
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index 00000000..750db47e
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index 00000000..fe07529b
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index 00000000..99f58d4a
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diff --git a/Source/Images/d_msxroms2/u0/RISEO439.ROM b/Source/Images/d_msxroms2/u0/RISEO439.ROM
new file mode 100644
index 00000000..a9358238
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diff --git a/Source/Images/d_msxroms2/u0/RIVER440.ROM b/Source/Images/d_msxroms2/u0/RIVER440.ROM
new file mode 100644
index 00000000..4aecab8e
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diff --git a/Source/Images/d_msxroms2/u0/ROADF441.ROM b/Source/Images/d_msxroms2/u0/ROADF441.ROM
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diff --git a/Source/Images/d_msxroms2/u0/ROBOF443.ROM b/Source/Images/d_msxroms2/u0/ROBOF443.ROM
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diff --git a/Source/Images/d_msxroms2/u0/ROCKN444.ROM b/Source/Images/d_msxroms2/u0/ROCKN444.ROM
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diff --git a/Source/Images/d_msxroms2/u0/ROGER445.ROM b/Source/Images/d_msxroms2/u0/ROGER445.ROM
new file mode 100644
index 00000000..3873d35f
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diff --git a/Source/Images/d_msxroms2/u0/ROLLE446.ROM b/Source/Images/d_msxroms2/u0/ROLLE446.ROM
new file mode 100644
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Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ROLLE446.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ROMLIST.TXT b/Source/Images/d_msxroms2/u0/ROMLIST.TXT
new file mode 100644
index 00000000..9bbaed80
--- /dev/null
+++ b/Source/Images/d_msxroms2/u0/ROMLIST.TXT
@@ -0,0 +1,495 @@
+379 LOADING GAMES OUT OF 481 ROMS
+
+Some require keyboard support and/or 2 joystick buttons. They are marked with a '?' in the list below
+Some require the patcher (MSX8P.COM). They are marked with a 'P' in the list below
+Some don't work at all. They are marked with a 'N' in the list below
+
+Y = (271) WORKS
+YP= ( 55) USE MSX8P (PATCHER VERSION NEEDED DUE TO DIRECT VDP/PSG WRITES INSTEAD OF GOING THROUGH THE BIOS)
+? = ( 53) RUNS BUT NOT PLAYABLE - POSSIBLY REQUIRES TWO BUTTON JOYSTICK OR UNSUPPORTED KEYBOARD CONTROLS
+N = DOES NOT WORK
+
+STAT SHORT NAME     LONG NAME (481 ROMS)
+==== ============   ============================================
+ Y   10YAR000.ROM   10-Yard Fight (Japan).rom			
+ N0  3DGOL002.ROM   3-D Golf Simulation (Japan) (High Speed).rom
+ N0  3DGOL003.ROM   3-D Golf Simulation (Japan).rom
+ N0  3DTEN004.ROM   3D Tennis (Japan).rom
+ Y   ACTMA007.ROM   Actman (Japan).rom
+ Y   ADVEN008.ROM   Adven' Chuta! (Japan).rom
+ Y   AEJAP005.ROM   A.E. (Japan).rom
+ Y?  ALBAT009.ROM   Albatros (Japan).rom
+ NP8 ALCAZ010.ROM   Alcazar - The Forgotten Fortress (Japan).rom
+ YP  ALIBA011.ROM   Alibaba and 40 Thieves (Japan).rom
+ YP  ALIEN012.ROM   Alien 8 (Japan).rom
+ YP? ALPHA014.ROM   Alpha Roid (Japan).rom
+ YP  ALPHA015.ROM   Alpha Squadron (Japan).rom
+ Y   AMERI016.ROM   American Truck (Japan).rom
+ YP  ANAZA017.ROM   Anaza - Kaleidoscope Special (Japan).rom
+ Y?  ANGEL018.ROM   Angelo (Japan).rom
+ Y   ANTAR020.ROM   Antarctic Adventure (Europe).rom
+ YP  ANTAR021.ROM   Antarctic Adventure (Japan).rom
+ YP  ANTYJ022.ROM   Anty (Japan).rom
+ Y   AQUAP023.ROM   Aqua Polis SOS (Japan).rom
+ N4  AQUAT024.ROM   Aquattack (Japan).rom
+ Y   ARAMO025.ROM   Aramo (Japan).rom
+ YP  ARKAN026.ROM   Arkanoid (Japan).rom
+ Y   ATHLE027.ROM   Athletic Ball (Japan).rom
+ N   ATHLE028.ROM   Athletic Land (Japan) (Beta).rom
+ YP  ATHLE029.ROM   Athletic Land (Japan).rom
+ Y   ATTAC030.ROM   Attack Four Volley Ball (Japan).rom
+ N4  BACKG032.ROM   Back Gammon (Japan).rom
+ Y   BACKG034.ROM   Backgammon (Europe).rom
+ Y   BACKT033.ROM   Back to the Future (Japan).rom
+ YP  BALAN035.ROM   Balance (Japan).rom
+ Y   BANAN036.ROM   Banana (Japan).rom
+ Y   BANKP037.ROM   Bank Panic (Japan).rom
+ N5  BASIC038.ROM   Basic Lessons 1 (Japan).rom
+ N   BASIC039.ROM   Basic Lessons 2 (Japan).rom
+ N4  BATTE041.ROM   Batten Tanuki no Daibouken (Japan) (v1.03).rom
+ Y   BATTL042.ROM   Battle Cross (Japan).rom
+ Y   BATTL043.ROM   Battleship Clapton II (Japan).rom
+ Y   BCSQU031.ROM   B.C.'s Quest (Japan).rom
+ Y   BEACH044.ROM   Beach-Head (Europe).rom
+ N0  BEAMR045.ROM   Beam Rider (Japan).rom
+ Y   BECKY046.ROM   Becky (Japan).rom
+ Y   BEEFL047.ROM   Bee & Flower (Japan).rom
+ Y   BIFAM048.ROM   Bifamu (Japan).rom
+ Y   BINAR049.ROM   Binary Land (Japan).rom
+ Y   BLACK051.ROM   Black Onyx, The (Japan).rom
+ Y?  BLAGG052.ROM   Blagger MSX (Europe) (Converted From Tape).rom
+ YP  BLOCK053.ROM   Block Hole (Korea) (Unl).rom
+ Y   BLOCK054.ROM   Blockade Runner (Japan).rom
+ Y   BOGGY055.ROM   Boggy '84 (Japan).rom
+ Y   BOING056.ROM   Boing Boing (Spain).rom
+ N8  BOKOS057.ROM   Bokosuka Wars (Japan).rom
+ Y   BOMBE059.ROM   Bomber Man (Japan).rom
+ Y   BOMBE060.ROM   Bomber Man Special (Japan).rom
+ Y   BOOGI061.ROM   Boogie Woogi Jungle (Japan).rom
+ Y?  BOOME062.ROM   Boomerang (Japan).rom
+ Y   BOSCO064.ROM   Bosconian (Japan).rom
+ Y   BOUKE065.ROM   Bouken Roman - Dota (Japan).rom
+ Y   BOULD066.ROM   Boulder Dash (Japan).rom
+ Y   BOUNC067.ROM   Bouncing Block (Spain).rom
+ N0  BRAIN068.ROM   Brain, The (Japan).rom
+ N0  BREAK070.ROM   Break Out (Japan).rom
+ Y   BROTH071.ROM   Brother Adventure (Korea) (Unl).rom
+ Y   BRUCE072.ROM   Bruce Lee (Japan).rom
+ YP  BUBBL073.ROM   Bubble Bobble (Korea) (Unl).rom
+ N0  BURGE074.ROM   Burgertime (Japan).rom
+ Y   BURUT075.ROM   Buru To Marty Kikiippatsu - Inspecteur Z (Japan).rom
+ Y   BUTAM076.ROM   Butam Pants (Japan).rom
+ Y   CABBA078.ROM   Cabbage Patch Kids (Japan).rom
+ YP? CANDO079.ROM   Candoo Ninja (Japan).rom
+ Y   CANNO080.ROM   Cannon Ball (Japan).rom
+ Y   CANNO081.ROM   Cannon Fighter (Japan).rom
+ Y   CAPTA082.ROM   Captain Chef (Japan).rom
+ Y   CARFI083.ROM   Car Fighter (Japan).rom
+ YP  CARJA084.ROM   Car Jamboree (Japan).rom
+ Y   CARRA085.ROM   Car-Race (Japan).rom
+ Y   CASIO086.ROM   Casio Daishogai Keiba (Japan).rom
+ Y   CASIO087.ROM   Casio Pachinko-U.F.O. (Japan).rom
+ Y   CASIO088.ROM   Casio Ski Command (Japan).rom
+ Y   CASIO089.ROM   Casio Worldopen (Japan).rom
+ Y   CASTL090.ROM   Castle Excellent (Japan).rom
+ Y   CASTL091.ROM   Castle, The (Japan).rom
+ Y   CHACK092.ROM   Chack'n Pop (Japan).rom
+ Y   CHALL093.ROM   Challenge Derby (Japan).rom
+ Y   CHAMP094.ROM   Champion Boxing (Japan).rom
+ Y?  CHAMP095.ROM   Champion Ice Hockey (Japan).rom
+ Y   CHAMP096.ROM   Champion Kendou (Japan).rom
+ Y   CHAMP097.ROM   Champion Pro Wrestling (Japan).rom
+ Y   CHAMP098.ROM   Champion Soccer (Japan).rom
+ Y   CHAMP099.ROM   Championship Lode Runner (Japan).rom
+ Y?  CHECK100.ROM   Checkers in Tantan Tanuki (Japan).rom
+ NP4 CHESS101.ROM   Chess (Japan).rom
+ NP4 CHESS102.ROM   Chess Game, The (Europe).rom
+ Y   CHOPL103.ROM   Choplifter (Japan).rom
+ YP  CHORO104.ROM   Choro Q (Japan).rom
+ N4  CHUGA105.ROM   Chugaku Hisshu Eibunpo 1 (Japan).rom
+ Y   CIRCU106.ROM   Circus Charlie (Japan).rom
+ Y   CITYC107.ROM   City Connection (Japan).rom
+ YP  COAST108.ROM   Coaster Race (Japan).rom
+ Y   COLOR109.ROM   Color Ball (Japan).rom
+ N0  COLUM110.ROM   Columns (Japan).rom
+ Y   COMEC112.ROM   Comecocos (Spain).rom
+ YP  COMEO111.ROM   Come On! Picot (Japan).rom
+ N0  COMET113.ROM   Comet Tail (Japan).rom
+ Y   COMIC114.ROM   Comic Bakery (Japan).rom
+ YP  COMPU115.ROM   Computer Billiards (Japan).rom
+ NP4 COMPU116.ROM   Computer Nyuumon - Computer Lessons (Japan).rom
+ NP5 COMPU117.ROM   Computer Othello (Japan).rom
+ YP  COMPU118.ROM   Computer Pachinko (Japan).rom
+ Y   CONDO119.ROM   Con-Dori (Japan).rom
+ N8  COSMO121.ROM   Cosmo (Japan).rom
+ Y   COSMO122.ROM   Cosmo-Explorer (Japan).rom
+ N0  COURA123.ROM   Courageous Perseus (Japan).rom
+ N0  CRAZY125.ROM   Crazy Bullet (Japan).rom
+ Y   CRAZY126.ROM   Crazy Cars (Europe).rom
+ N0  CRAZY127.ROM   Crazy Train (Japan).rom
+ Y   CRUSA129.ROM   Crusader (Japan).rom
+ N4  CSOJA077.ROM   C-So! (Japan).rom
+ N4  DAIDA131.ROM   Daidasso (Japan).rom
+ Y   DAMBU133.ROM   Dam Busters, The (Japan).rom
+ N0  DANGE134.ROM   Danger X4 (Japan).rom
+ Y   DAVID135.ROM   David II (Japan).rom
+ Y   DDAYJ130.ROM   D-Day (Japan).rom
+ N0  DECAT137.ROM   Decathlon (Japan).rom
+ N0  DEMON140.ROM   Demon Crystal, The (Japan).rom
+ Y   DEVIL142.ROM   Devil's Heaven (Japan).rom
+ Y   DIGDU143.ROM   Dig Dug (Japan).rom
+ YP  DIPDI145.ROM   Dip Dip (Spain).rom
+ Y   DOKID146.ROM   Doki Doki Penguin Land (Japan).rom
+ Y   DOORD147.ROM   Doordoor (Japan).rom
+ N4  DOROD148.ROM   Dorodon (Japan).rom
+ YP  DOUBL149.ROM   Double Dragon (Korea) (Unl).rom
+ Y?  DRCOP150.ROM   Dr. Copy (Japan).rom
+ Y   DRAGO151.ROM   Dragon Attack (Japan).rom
+ Y   DRAGO154.ROM   Dragon Slayer (Japan).rom
+ YP  DRAIN158.ROM   Drainer (Japan).rom
+ Y   DRUAG159.ROM   Druaga no Tou (Japan).rom
+ Y?  DUNGE161.ROM   Dungeon Master (Japan).rom
+ Y   DUNKS162.ROM   Dunk Shot (Japan).rom
+ NF  EAGLE164.ROM   Eagle Fighter (Japan).rom
+ N4  EGGER165.ROM   Eggerland Mystery (Japan).rom
+ Y   ELEVA166.ROM   Elevator Action (Japan).rom
+ Y?  ERIKA167.ROM   Erika (Japan).rom
+ Y   EXAIN168.ROM   Exa Innova (Japan).rom
+ N0  EXCHA169.ROM   Exchanger (Japan).rom
+ Y   EXERI170.ROM   Exerion (Japan).rom
+ Y   EXERI171.ROM   Exerion II - Zorni (Japan).rom
+ YP  EXOID172.ROM   Exoide-Z (Japan).rom
+ Y   EXOID173.ROM   Exoide-Z Area 5 (Japan).rom
+ N8  F16FI175.ROM   F16 Fighting Falcon (Japan).rom
+ Y   FAIRY177.ROM   Fairy (Japan).rom
+ YP  FATET176.ROM   Fa Tetris (Korea) (Unl).rom
+ Y   FATHO183.ROM   Fathom (Japan).rom
+ Y   FINAL184.ROM   Final Justice (Japan).rom
+ Y   FINAL185.ROM   Final Mahjong (Japan).rom
+ Y   FIRER187.ROM   Fire Rescue (Japan).rom
+ Y   FLAPP188.ROM   Flappy (Japan).rom
+ Y   FLAPP189.ROM   Flappy - Limited 85 (Japan).rom
+ YP? FLASH190.ROM   Flash Point (Korea) (Unl).rom
+ Y   FLASH191.ROM   Flash Splash (Japan).rom
+ Y   FLICK192.ROM   Flicky (Japan).rom
+ Y   FLICS193.ROM   Flics, Les (France).rom
+ Y   FLIPP196.ROM   Flipper Slipper (Japan).rom
+ Y   FORMA197.ROM   Formation Z (Japan).rom
+ YP  FROGG198.ROM   Frogger (Japan).rom
+ Y   FRONT199.ROM   Front Line (Japan).rom
+ Y   FRUIT200.ROM   Fruit Search (Japan).rom
+ Y   FUNKY201.ROM   Funky Mouse (Japan).rom
+ N8  FUTBO202.ROM   Futbol (Spain).rom
+ Y   FUUNT203.ROM   Fuun Takeshijyou (Japan).rom
+ Y   GALAG204.ROM   Galaga (Japan).rom
+ Y   GALAX205.ROM   Galaxian (Japan).rom
+ N0  GAMEL208.ROM   Game Land (Japan).rom
+ Y?  GAMEM209.ROM   Game Master (Europe).rom
+ Y?  GAMEM210.ROM   Game Master (Japan).rom
+ N0  GANGM213.ROM   Gang Master (Japan).rom
+ YP  GHOST216.ROM   Ghostbusters (Europe).rom
+ Y?  GLIDE217.ROM   Glider (Japan).rom
+ Y   GOKIB218.ROM   Gokiburi Daisakusen - Bug Bomb (Japan).rom
+ N0  GOLFG219.ROM   Golf Game (Japan).rom
+ YP? GOMOK221.ROM   Gomok Narabe - Omo Go (Japan).rom
+ Y   GOONI222.ROM   Goonies, The (Japan).rom
+ Y   GPWOR223.ROM   GP World (Japan).rom
+ N9  GREEN224.ROM   Green Beret (Europe).rom
+ Y   GROGS225.ROM   Grog's Revenge (Japan).rom
+ Y   GUARD226.ROM   Guardic (Japan).rom
+ Y   GULKA227.ROM   Gulkave (Japan).rom
+ YP  GUNFR228.ROM   Gun Fright (Japan).rom
+ Y   GUNJI229.ROM   Gunjin Shougi Mars (Japan).rom
+ YP  GYROD230.ROM   Gyrodine (Japan).rom
+ N0  HEROJ231.ROM   H.E.R.O. (Japan).rom
+ Y   HADES232.ROM   Hades no Monsho (Japan).rom
+ Y   HAFAN233.ROM   Hafanuda Koi Koi - Gostop Godori (Japan).rom
+ YP  HANAF235.ROM   Hanafuta (Japan).rom
+ Y   HANGO236.ROM   Hang-On (Japan).rom
+ Y   HARAP237.ROM   Harapeko Pakkun (Japan).rom
+ Y   HAUNT240.ROM   Haunted Boynight (Japan).rom
+ Y   HEAVY241.ROM   Heavy Boxing (Japan).rom
+ Y   HEIST242.ROM   Heist, The (Japan).rom
+ Y   HELIT243.ROM   Helitank (Japan).rom
+ Y   HIGHW244.ROM   High Way Star (Japan).rom
+ Y   HIGHW245.ROM   High Way Star (Korea).rom
+ YP? HISYA246.ROM   Hisya (Japan).rom
+ Y   HITSU247.ROM   Hitsuji Yai - Preety Sheep (Japan).rom
+ Y   HOLEI248.ROM   Hole in One (Japan).rom
+ Y?  HOLEI249.ROM   Hole in One Professional (Japan).rom
+ Y   HONKB250.ROM   Honkball (Japan).rom
+ YP  HOPPE251.ROM   Hopper (Europe).rom
+ Y?  HUDSO252.ROM   Hudson 3D Golf (Japan).rom
+ Y   HUSTL253.ROM   Hustle! Chumy (Japan).rom
+ Y   HYDLI254.ROM   Hydlide (Japan).rom
+ Y   HYPER257.ROM   Hyper Olympic 1 (Japan).rom
+ Y   HYPER258.ROM   Hyper Olympic 2 (Japan).rom
+ Y?  HYPER259.ROM   Hyper Rally (Japan).rom
+ Y   HYPER260.ROM   Hyper Sports 1 (Japan).rom
+ Y   HYPER261.ROM   Hyper Sports 2 (Japan).rom
+ N4  HYPER262.ROM   Hyper Sports 3 (Japan).rom
+ Y   ICEWO263.ROM   Ice World (Japan).rom
+ Y   IGANI264.ROM   Iga Ninpouten - Small Ninja (Japan).rom
+ Y   IGANI265.ROM   Iga Ninpouten 2 - Small Ninja 2 (Japan).rom
+ Y   INDIA266.ROM   Indian no Bouken (Japan).rom
+ N0  IRIEG267.ROM   Iriegas (Japan).rom
+ Y   IRIEG268.ROM   Iriegas - Theseus (Japan).rom
+ Y   ISSUN269.ROM   Issunhoushi No Donnamondai (Japan).rom
+ Y   JPWIN270.ROM   J.P. Winkle (Japan).rom
+ Y   JANKA272.ROM   Janka (Japan).rom
+ Y   JETSE273.ROM   Jet Set Willy (Japan).rom
+ Y   JIGSA274.ROM   Jigsaw Set (Japan).rom
+ Y   JISSE275.ROM   Jissen - 4-nin Mahjong (Japan).rom
+ Y   JUMPJ276.ROM   Jump (Japan).rom
+ Y   JUMPC277.ROM   Jump Coaster (Japan).rom
+ YP  JUMPL278.ROM   Jump Land (Japan).rom
+ Y   JUMPI279.ROM   Jumping Rabbit (Japan).rom
+ N0  JUNOF280.ROM   Juno First (Japan).rom
+ Y   JYANF281.ROM   Jyan Friend (Japan).rom
+ Y   JYANK282.ROM   Jyankyo (Japan).rom
+ Y   JYANY283.ROM   Jyanyuu (Japan).rom
+ N4  KAGEN284.ROM   Kage no Densetsu - Legend of Kage, The (Japan).rom
+ N0  KARAM285.ROM   Karamaru (Japan).rom
+ N0  KEYST287.ROM   Keystone Kapers (Japan).rom
+ YP  KICKI288.ROM   Kick It (Japan).rom
+ Y   KINAS289.ROM   Kinasai (Japan) (Unl).rom
+ Y   KINGB290.ROM   King & Balloon (Japan).rom
+ Y   KINGS292.ROM   King's Valley (Japan, Europe).rom
+ Y   KINNI294.ROM   Kinnikuman - Muscle Man (Japan).rom
+ YP  KNIGH295.ROM   Knight Lore (Japan).rom
+ Y   KNIGH296.ROM   Knightmare - Majou Densetsu (Japan).rom
+ Y   KONAM300.ROM   Konami's Baseball (Japan).rom
+ Y   KONAM301.ROM   Konami's Billiards (Europe).rom
+ Y   KONAM302.ROM   Konami's Boxing (Japan).rom
+ N4  KONAM303.ROM   Konami's Football (Europe).rom
+ N4  KONAM304.ROM   Konami's Golf (Japan).rom
+ Y?  KONAM305.ROM   Konami's Mahjong (Japan).rom
+ Y?  KONAM306.ROM   Konami's Ping-Pong (Japan).rom
+ N4  KONAM307.ROM   Konami's Soccer (Japan).rom
+ Y   KONAM308.ROM   Konami's Tennis (Japan).rom
+ Y   KONEK309.ROM   Koneko no Daibouken - Catboy (Japan).rom
+ Y   KUNGF310.ROM   Kung Fu Acho (Japan).rom
+ Y   KUNGF311.ROM   Kung Fu Master (Japan).rom
+ Y   KUNGF312.ROM   Kung Fu Taigun (Japan).rom
+ N0  LADDE313.ROM   Ladder Building (Japan).rom
+ YP  LAPTI314.ROM   Laptick 2 (Japan).rom
+ Y   LEMAN315.ROM   Le Mans 2 (Europe).rom
+ N8  LEONA317.ROM   Leonard (Spain).rom
+ Y   LODER319.ROM   Lode Runner (Japan).rom
+ Y   LODER320.ROM   Lode Runner II (Japan).rom
+ N0  LORDO321.ROM   Lord Over (Japan).rom
+ N3  LOTLO322.ROM   Lot Lot (Japan).rom
+ Y   LUNAR323.ROM   Lunar Ball (Japan).rom
+ N7  MACAT325.ROM   Mac Attack (Europe).rom
+ Y   MACHI326.ROM   Machinegun Joe vs The Mafia (Japan).rom
+ Y   MACRO327.ROM   Macross (Japan).rom
+ Y   MAGIC328.ROM   Magical Kid Wiz (Japan).rom
+ Y   MAGIC329.ROM   Magical Tree (Japan).rom
+ Y   MANES331.ROM   Manes (Japan).rom
+ Y   MAPPY332.ROM   Mappy (Japan).rom
+ N0  MARIN334.ROM   Marine Battle (Japan).rom
+ YP? MARSI335.ROM   Mars II (Japan).rom
+ Y?  MASTE337.ROM   Master Chess (Europe).rom
+ Y   MEGAL338.ROM   Megalopolis SOS (Japan).rom
+ Y?  MIDNI340.ROM   Midnight Brothers (Japan).rom
+ Y?  MIDNI341.ROM   Midnight Building (Japan).rom
+ Y?  MIDWA342.ROM   Midway (Japan).rom
+ Y?  MILCA343.ROM   Mil Caras (Spain).rom
+ Y   MINIG344.ROM   Mini Golf (Japan).rom
+ Y   MOAIN347.ROM   Moai no Hibou (Japan).rom
+ Y   MOBIL348.ROM   Mobile Planet Suthirus - Approach from the Westgate (Japan).rom
+ Y   MOBIL349.ROM   Mobile-Suit Gundam - Last Shooting (Japan).rom
+ YP  MOKAR350.ROM   Mokarimakka (Japan).rom
+ N0  MOLEJ351.ROM   Mole (Japan).rom
+ Y?  MOLEM352.ROM   Mole Mole 2 (Japan).rom
+ YP? MONKE353.ROM   Monkey Academy (Japan).rom
+ Y   MONST354.ROM   Monster's Fair (Japan).rom
+ N0  MOONL355.ROM   Moon Landing (Japan).rom
+ Y   MOONP356.ROM   Moon Patrol (Japan).rom
+ Y   MOONS357.ROM   Moonsweeper (Japan).rom
+ N4  MOPIR358.ROM   Mopiranger (Japan).rom
+ NC  MORIT359.ROM   Morita Kazuo no Othello (Japan).rom
+ YP? MOUSE360.ROM   Mouser (Japan).rom
+ Y   MRCHI361.ROM   Mr. Chin (Japan).rom
+ Y?  MRDOJ362.ROM   Mr. Do (Japan).rom
+ Y   MRDOS364.ROM   Mr. Do's Wild Ride (Japan).rom
+ Y   MRDOV363.ROM   Mr. Do vs Unicorns (Japan).rom
+ N0  MSX21365.ROM   MSX 21 (Japan).rom
+ Y   MSXBA366.ROM   MSX Baseball (Japan).rom
+ Y   MSXBA367.ROM   MSX Baseball II National (Japan).rom
+ N0  MSXDE368.ROM   MSX Derby (Japan).rom
+ Y   MSXRU369.ROM   MSX Rugby (Japan).rom
+ Y   MSXSO370.ROM   MSX Soccer (Japan).rom
+ N0  NAUSI372.ROM   Nausicaa (Japan).rom
+ Y   NESSE378.ROM   Nessen Koushiyen (Japan).rom
+ YP  NIGHT379.ROM   Night Shade (Japan).rom
+ Y   NINJA380.ROM   Ninja Jajamaru-kun (Japan).rom
+ YP  NINJA381.ROM   Ninja Princess (Japan).rom
+ Y   NINJA382.ROM   Ninjakun (Japan).rom
+ Y   NINJA383.ROM   Ninjakun Majou (Japan).rom
+ Y   NINJY384.ROM   Ninjya Kage (Japan).rom
+ Y?  NYANN386.ROM   Nyan Nyan Pro Wrestling (Japan).rom
+ Y   NYORO387.ROM   Nyorols (Japan).rom
+ Y   OILSW389.ROM   Oil's Well (Japan).rom
+ Y?  OKAMI390.ROM   Okami no Su (Japan).rom
+ Y   OMACF388.ROM   O'Mac Farmer (Japan).rom
+ Y   OTHEL391.ROM   Othello (Japan).rom
+ Y   OYOID392.ROM   Oyoide Tango (Japan).rom
+ Y   PACHI394.ROM   Pachi Com (Japan).rom
+ Y   PACMA393.ROM   Pac-Man (Japan).rom
+ Y   PAIPA395.ROM   Pai Panic (Japan).rom
+ N0  PAIRS396.ROM   Pairs (Japan).rom
+ Y   PANTH397.ROM   Panther (Japan).rom
+ N0  PASSB399.ROM   Pass Ball (Japan).rom
+ YP? PASTF400.ROM   Pastfinder (Japan).rom
+ Y?  PAYLO401.ROM   Pay Load (Japan).rom
+ Y   PEETA402.ROM   Peetan (Japan).rom
+ Y   PEGAS403.ROM   Pegasus (Japan).rom
+ Y   PENGU405.ROM   Penguin-kun Wars (Japan).rom
+ YP? PICOP406.ROM   Pico Pico (Japan).rom
+ Y   PICTU407.ROM   Picture Puzzle (Japan).rom
+ Y?  PILLB408.ROM   Pillbox (Japan).rom
+ Y?  PINEA410.ROM   Pine Applin (Japan).rom
+ YP? PINGB411.ROM   Pingball Maker (Japan).rom
+ YP  PINKY412.ROM   Pinky Chase (Japan).rom
+ Y   PIPIJ413.ROM   Pipi (Japan).rom
+ Y   PIPPO414.ROM   Pippols (Japan).rom
+ YP  PITFA415.ROM   Pitfall II - Lost Caverns (Japan).rom
+ NP8 PITFA416.ROM   Pitfall! (Japan).rom
+ Y   PLAYB417.ROM   Play Ball (Japan).rom
+ N4  POINY418.ROM   Poiny X Senryosakusen - Operation Thanksgiving (Japan).rom
+ Y   POLIC419.ROM   Police Story, The (Japan).rom
+ YP  POOYA420.ROM   Pooyan (Japan).rom
+ Y   POPPA421.ROM   Poppaq the Fish (Japan).rom
+ N4  PROFE423.ROM   Professional Baseball (Japan).rom
+ YP? PROFE424.ROM   Professional Mahjong (Japan).rom
+ Y   PROTE425.ROM   Protector, The (Japan).rom
+ Y   PUZZL427.ROM   Puzzle Panic (Japan).rom
+ Y   PYRAM428.ROM   Pyramid Warp (Japan).rom
+ Y   QBERT429.ROM   Q-bert (Japan).rom
+ Y   QUEEN430.ROM   Queen's Golf (Japan).rom
+ Y   RAIDO432.ROM   Raid on Bungeling Bay (Japan).rom
+ Y   RALLY433.ROM   Rally-X (Japan).rom
+ YP? RAMBO434.ROM   Rambo (Japan).rom
+ YP? REALT435.ROM   Real Tennis (Japan).rom
+ Y   REDZO436.ROM   Red Zone (Japan).rom
+ N0  RENJU438.ROM   Renju & Ojama Dogs (Japan).rom
+ Y   RISEO439.ROM   Rise Out from Dungeons (Japan).rom
+ N0  RIVER440.ROM   River Raid (Japan).rom
+ Y   ROADF441.ROM   Road Fighter (Japan).rom
+ Y   ROBOF443.ROM   Robofrog (Japan).rom
+ NP8 ROCKN444.ROM   Rock'n Bolt (Japan).rom
+ Y   ROGER445.ROM   Roger Rubbish (Europe).rom
+ Y?  ROLLE446.ROM   Roller Ball (Japan).rom
+ N0  ROTOR447.ROM   Rotors (Japan).rom
+ YP  SASAJ450.ROM   Sasa (Japan).rom
+ Y?  SAURU451.ROM   Saurus Land (Japan).rom
+ Y   SCARL452.ROM   Scarlet 7 - The Mightiest Women (Japan).rom
+ Y   SCION453.ROM   Scion (Japan).rom
+ N0  SCOPE454.ROM   Scope On - Fight in Space (Japan).rom
+ Y   SCRAM455.ROM   Scramble Eggs (Japan).rom
+ Y   SEAHU456.ROM   Sea Hunter (Europe).rom
+ Y   SENJY458.ROM   Senjyo (Japan).rom
+ N4  SEWER459.ROM   Sewer Sam (Japan).rom
+ Y   SHOUG460.ROM   Shougi (Japan).rom
+ N4  SHOUG461.ROM   Shougi 2 (Japan).rom
+ N0  SHOUG462.ROM   Shougi Game (Japan).rom
+ Y   SHOUG463.ROM   Shougi Meijin (Japan).rom
+ Y   SHOUG464.ROM   Shougi Sinan 1 (Japan).rom
+ YP  SHOUT465.ROM   Shout Match (Japan).rom
+ YP  SINBA466.ROM   Sinbad (Japan).rom
+ YP  SKOOT467.ROM   Skooter (Japan).rom
+ Y   SKYGA468.ROM   Sky Galdo (Japan).rom
+ Y   SKYJA469.ROM   Sky Jaguar (Japan).rom
+ N8  SLAPS470.ROM   Slapshot (Spain).rom
+ Y   SNAKE471.ROM   Snake It (Europe).rom
+ Y   SOUKO473.ROM   Soukoban (Japan).rom
+ Y   SPACE474.ROM   Space Camp (Japan).rom
+ Y   SPACE475.ROM   Space Invaders (Japan).rom
+ Y   SPACE476.ROM   Space Maze Attack (Japan).rom
+ Y   SPACE477.ROM   Space Trouble (Japan).rom
+ Y   SPACE478.ROM   Space Walk (Europe).rom
+ N0  SPARK479.ROM   Sparkie (Japan).rom
+ Y   SPELU480.ROM   Spelunker (Japan).rom
+ N8  SPIDE481.ROM   Spider, The (Japan).rom
+ Y   SQUAR483.ROM   Square Dancer (Japan).rom
+ Y   SQUIS484.ROM   Squish'em (Japan).rom
+ Y   STARB485.ROM   Star Blazer (Japan).rom
+ N0  STARC486.ROM   Star Command (Japan).rom
+ Y   STARF487.ROM   Star Force (Japan).rom
+ Y   STARS488.ROM   Star Soldier (Japan).rom
+ Y?  START489.ROM   Star Trap (Japan).rom
+ Y?  STARS490.ROM   Starship Simulator (Japan).rom
+ Y   STEPU491.ROM   Step Up (Japan).rom
+ N8  STEPP492.ROM   Stepper (Japan).rom
+ Y   STONE493.ROM   Stone of Wisdom, The (Japan).rom
+ N4  STRAN494.ROM   Strange Loop (Japan).rom
+ Y   SUPAR495.ROM   Suparobo (Japan).rom
+ N0  SUPER496.ROM   Super Billiards (Japan).rom
+ YP? SUPER499.ROM   Super Boy I (Korea) (Unl).rom
+ YP? SUPER500.ROM   Super Boy II (Korea) (Unl).rom
+ YP  SUPER501.ROM   Super Bubble Bobble (Korea) (Unl).rom
+ NP4 SUPER502.ROM   Super Cobra (Japan).rom
+ YP  SUPER503.ROM   Super Columns (Japan).rom
+ YP  SUPER504.ROM   Super Cross Force (Europe).rom
+ Y   SUPER505.ROM   Super Drinker (Japan).rom
+ YP  SUPER506.ROM   Super Golf (Japan).rom
+ NP8 SUPER508.ROM   Super Pachinko (Japan).rom
+ Y   SUPER510.ROM   Super Snake (Japan).rom
+ Y   SUPER511.ROM   Super Soccer (Japan).rom
+ Y   SUPER512.ROM   Super Tennis (Japan).rom
+ NP4 SUPER513.ROM   Super Tripper (Spain).rom
+ YP  SWEET514.ROM   Sweet Acorn (Japan).rom
+ N4  SWING515.ROM   Swing (Japan).rom
+ Y   TANKB517.ROM   Tank Battalion (Japan).rom
+ Y   TATIC518.ROM   Tatica (Japan).rom
+ Y   TAWAR519.ROM   Tawara-kun (Japan).rom
+ Y   TEARO520.ROM   Tear of Nile (Japan).rom
+ NP8 TELEB521.ROM   Telebunnie (Japan).rom
+ Y   TENSA522.ROM   Tensai Rabbian Daifunsen (Japan).rom
+ Y?  TENSI523.ROM   Tensidachino Gogo (Japan).rom
+ YP  TENSI524.ROM   Tension (Spain).rom
+ NP8 TETRA525.ROM   Tetra Horror (Japan).rom
+ Y   TETRI526.ROM   Tetris (Korea) (Unl).rom
+ NP8 TETSU527.ROM   Tetsuman (Japan).rom
+ Y   THEXD528.ROM   Thexder (Japan).rom
+ Y?  THUND529.ROM   Thunder Ball (Japan).rom
+ N6  THUND530.ROM   Thunderbolt (Japan).rom
+ YP  TIMEP531.ROM   Time Pilot (Japan).rom
+ YP  TOPPL534.ROM   Topple Zip (Japan).rom
+ Y   TOPRO533.ROM   Top Roller! (Japan).rom
+ Y   TRACK535.ROM   Track & Field 1 (Europe).rom
+ Y   TRACK536.ROM   Track & Field 2 (Europe).rom
+ Y   TRAFF537.ROM   Traffic (Japan).rom
+ N0  TRIAL538.ROM   Trial Ski (Japan).rom
+ Y   TRICK539.ROM   Trick Boy (Japan).rom
+ YP  TRITO540.ROM   Tritorn (Japan).rom
+ N0  TRUMP541.ROM   Trumpaid (Japan).rom
+ N8  TURBO543.ROM   Turboat (Japan).rom
+ Y   TWINB544.ROM   Twin Bee (Japan).rom
+ YP  TWINH545.ROM   Twin Hammer (Europe).rom
+ Y   TZRGR546.ROM   TZR - Grand Prix Rider (Japan).rom
+ Y   ULTRA547.ROM   Ultraman (Japan).rom
+ YP? VENUS549.ROM   Venus Fire (Japan).rom
+ NP4 VIDEO550.ROM   Video Hustler (Japan).rom
+ Y   VOLGU551.ROM   Volguard (Japan).rom
+ Y   WARPW552.ROM   Warp & Warp (Japan).rom
+ YP  WARRO553.ROM   Warroid (Japan).rom
+ Y?  WATER554.ROM   Water Driver (Japan).rom
+ Y   WONDE556.ROM   Wonder Boy (Japan).rom
+ NP4 WRANG557.ROM   Wrangler (Spain).rom
+ NP4 WRECK558.ROM   Wreck, The (Europe).rom
+ YP  XYXOL559.ROM   Xyxolog (Japan).rom
+ N8  YABYU560.ROM   Yab Yum (Netherlands).rom
+ Y   YELLO561.ROM   Yellow Submarine (Japan).rom
+ Y   YIEAR562.ROM   Yie Ar Kung-Fu (Japan).rom
+ N4  YIEAR563.ROM   Yie Ar Kung-Fu II - The Emperor Yie-Gah (Japan).rom
+ YP  YOKAI564.ROM   Yokai Tanken Chimachima (Japan).rom
+ Y   ZAIDE566.ROM   Zaider - Battle of Peguss (Japan).rom
+ Y   ZANAC567.ROM   Zanac (Japan) (v2).rom
+ Y   ZANAC568.ROM   Zanac (Japan).rom
+ Y   ZAXXO569.ROM   Zaxxon (Japan).rom
+ N0  ZENJI570.ROM   Zenji (Japan).rom
+ Y   ZEXAS571.ROM   Zexas Limited (Japan).rom
+ Y   ZOOM9572.ROM   Zoom 909 (Japan).rom
+================= TESTED ALL ABOVE =================
diff --git a/Source/Images/d_msxroms2/u0/ROTOR447.ROM b/Source/Images/d_msxroms2/u0/ROTOR447.ROM
new file mode 100644
index 00000000..f3cea3f2
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ROTOR447.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SASAJ450.ROM b/Source/Images/d_msxroms2/u0/SASAJ450.ROM
new file mode 100644
index 00000000..28efe046
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SASAJ450.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SAURU451.ROM b/Source/Images/d_msxroms2/u0/SAURU451.ROM
new file mode 100644
index 00000000..26838656
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SAURU451.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SCARL452.ROM b/Source/Images/d_msxroms2/u0/SCARL452.ROM
new file mode 100644
index 00000000..7cc462cf
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SCARL452.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SCION453.ROM b/Source/Images/d_msxroms2/u0/SCION453.ROM
new file mode 100644
index 00000000..cb6f9451
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SCION453.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SCOPE454.ROM b/Source/Images/d_msxroms2/u0/SCOPE454.ROM
new file mode 100644
index 00000000..d26218ec
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SCOPE454.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SCRAM455.ROM b/Source/Images/d_msxroms2/u0/SCRAM455.ROM
new file mode 100644
index 00000000..2ea77e05
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SCRAM455.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SEAHU456.ROM b/Source/Images/d_msxroms2/u0/SEAHU456.ROM
new file mode 100644
index 00000000..3b3b0783
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SEAHU456.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SENJY458.ROM b/Source/Images/d_msxroms2/u0/SENJY458.ROM
new file mode 100644
index 00000000..2ea1eb01
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SENJY458.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SEWER459.ROM b/Source/Images/d_msxroms2/u0/SEWER459.ROM
new file mode 100644
index 00000000..52b08e5d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SEWER459.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUG460.ROM b/Source/Images/d_msxroms2/u0/SHOUG460.ROM
new file mode 100644
index 00000000..7f798d9b
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUG460.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUG461.ROM b/Source/Images/d_msxroms2/u0/SHOUG461.ROM
new file mode 100644
index 00000000..afb712e7
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUG461.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUG462.ROM b/Source/Images/d_msxroms2/u0/SHOUG462.ROM
new file mode 100644
index 00000000..2d50bafd
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUG462.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUG463.ROM b/Source/Images/d_msxroms2/u0/SHOUG463.ROM
new file mode 100644
index 00000000..dac21bb1
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUG463.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUG464.ROM b/Source/Images/d_msxroms2/u0/SHOUG464.ROM
new file mode 100644
index 00000000..e2c706c8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUG464.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SHOUT465.ROM b/Source/Images/d_msxroms2/u0/SHOUT465.ROM
new file mode 100644
index 00000000..dfb01c8d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SHOUT465.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SINBA466.ROM b/Source/Images/d_msxroms2/u0/SINBA466.ROM
new file mode 100644
index 00000000..1e9db136
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SINBA466.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SKOOT467.ROM b/Source/Images/d_msxroms2/u0/SKOOT467.ROM
new file mode 100644
index 00000000..34839e19
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SKOOT467.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SKYGA468.ROM b/Source/Images/d_msxroms2/u0/SKYGA468.ROM
new file mode 100644
index 00000000..21aecf06
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SKYGA468.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SKYJA469.ROM b/Source/Images/d_msxroms2/u0/SKYJA469.ROM
new file mode 100644
index 00000000..974b3802
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SKYJA469.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SLAPS470.ROM b/Source/Images/d_msxroms2/u0/SLAPS470.ROM
new file mode 100644
index 00000000..ed630e38
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SLAPS470.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SNAKE471.ROM b/Source/Images/d_msxroms2/u0/SNAKE471.ROM
new file mode 100644
index 00000000..21f8728c
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SNAKE471.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SOUKO473.ROM b/Source/Images/d_msxroms2/u0/SOUKO473.ROM
new file mode 100644
index 00000000..156842b8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SOUKO473.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPACE474.ROM b/Source/Images/d_msxroms2/u0/SPACE474.ROM
new file mode 100644
index 00000000..3c5262f7
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPACE474.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPACE475.ROM b/Source/Images/d_msxroms2/u0/SPACE475.ROM
new file mode 100644
index 00000000..a8563ff0
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPACE475.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPACE476.ROM b/Source/Images/d_msxroms2/u0/SPACE476.ROM
new file mode 100644
index 00000000..b4c298ff
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPACE476.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPACE477.ROM b/Source/Images/d_msxroms2/u0/SPACE477.ROM
new file mode 100644
index 00000000..237d8d68
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPACE477.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPACE478.ROM b/Source/Images/d_msxroms2/u0/SPACE478.ROM
new file mode 100644
index 00000000..5ff85c6a
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPACE478.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPARK479.ROM b/Source/Images/d_msxroms2/u0/SPARK479.ROM
new file mode 100644
index 00000000..c7ff1e8d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPARK479.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPELU480.ROM b/Source/Images/d_msxroms2/u0/SPELU480.ROM
new file mode 100644
index 00000000..3f8113e5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPELU480.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SPIDE481.ROM b/Source/Images/d_msxroms2/u0/SPIDE481.ROM
new file mode 100644
index 00000000..c48d0587
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SPIDE481.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SQUAR483.ROM b/Source/Images/d_msxroms2/u0/SQUAR483.ROM
new file mode 100644
index 00000000..02d888d8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SQUAR483.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SQUIS484.ROM b/Source/Images/d_msxroms2/u0/SQUIS484.ROM
new file mode 100644
index 00000000..872f3be6
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SQUIS484.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STARB485.ROM b/Source/Images/d_msxroms2/u0/STARB485.ROM
new file mode 100644
index 00000000..fa6f401e
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STARB485.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STARC486.ROM b/Source/Images/d_msxroms2/u0/STARC486.ROM
new file mode 100644
index 00000000..21ee5f4e
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STARC486.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STARF487.ROM b/Source/Images/d_msxroms2/u0/STARF487.ROM
new file mode 100644
index 00000000..d6a4e72b
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STARF487.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STARS488.ROM b/Source/Images/d_msxroms2/u0/STARS488.ROM
new file mode 100644
index 00000000..4a9ebfe8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STARS488.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STARS490.ROM b/Source/Images/d_msxroms2/u0/STARS490.ROM
new file mode 100644
index 00000000..a2012b26
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STARS490.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/START489.ROM b/Source/Images/d_msxroms2/u0/START489.ROM
new file mode 100644
index 00000000..5dc04e21
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/START489.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STEPP492.ROM b/Source/Images/d_msxroms2/u0/STEPP492.ROM
new file mode 100644
index 00000000..5e9f6624
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STEPP492.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STEPU491.ROM b/Source/Images/d_msxroms2/u0/STEPU491.ROM
new file mode 100644
index 00000000..3b6de729
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STEPU491.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STONE493.ROM b/Source/Images/d_msxroms2/u0/STONE493.ROM
new file mode 100644
index 00000000..cfd98b64
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STONE493.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/STRAN494.ROM b/Source/Images/d_msxroms2/u0/STRAN494.ROM
new file mode 100644
index 00000000..2cddf3fc
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/STRAN494.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPAR495.ROM b/Source/Images/d_msxroms2/u0/SUPAR495.ROM
new file mode 100644
index 00000000..905a4dac
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPAR495.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER496.ROM b/Source/Images/d_msxroms2/u0/SUPER496.ROM
new file mode 100644
index 00000000..f2c547c0
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER496.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER499.ROM b/Source/Images/d_msxroms2/u0/SUPER499.ROM
new file mode 100644
index 00000000..8e572374
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER499.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER500.ROM b/Source/Images/d_msxroms2/u0/SUPER500.ROM
new file mode 100644
index 00000000..1da662fa
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER500.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER501.ROM b/Source/Images/d_msxroms2/u0/SUPER501.ROM
new file mode 100644
index 00000000..5fd76c4d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER501.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER502.ROM b/Source/Images/d_msxroms2/u0/SUPER502.ROM
new file mode 100644
index 00000000..76cf511c
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER502.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER503.ROM b/Source/Images/d_msxroms2/u0/SUPER503.ROM
new file mode 100644
index 00000000..31e39f9f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER503.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER504.ROM b/Source/Images/d_msxroms2/u0/SUPER504.ROM
new file mode 100644
index 00000000..7376c5bc
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER504.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER505.ROM b/Source/Images/d_msxroms2/u0/SUPER505.ROM
new file mode 100644
index 00000000..e30264c8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER505.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER506.ROM b/Source/Images/d_msxroms2/u0/SUPER506.ROM
new file mode 100644
index 00000000..3957fcd6
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER506.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER508.ROM b/Source/Images/d_msxroms2/u0/SUPER508.ROM
new file mode 100644
index 00000000..ff7440f8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER508.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER510.ROM b/Source/Images/d_msxroms2/u0/SUPER510.ROM
new file mode 100644
index 00000000..e7798b15
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER510.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER511.ROM b/Source/Images/d_msxroms2/u0/SUPER511.ROM
new file mode 100644
index 00000000..ee4c00ff
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER511.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER512.ROM b/Source/Images/d_msxroms2/u0/SUPER512.ROM
new file mode 100644
index 00000000..22d3de53
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER512.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SUPER513.ROM b/Source/Images/d_msxroms2/u0/SUPER513.ROM
new file mode 100644
index 00000000..82c46538
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SUPER513.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SWEET514.ROM b/Source/Images/d_msxroms2/u0/SWEET514.ROM
new file mode 100644
index 00000000..a4e84575
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SWEET514.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/SWING515.ROM b/Source/Images/d_msxroms2/u0/SWING515.ROM
new file mode 100644
index 00000000..deedc9ba
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/SWING515.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TANKB517.ROM b/Source/Images/d_msxroms2/u0/TANKB517.ROM
new file mode 100644
index 00000000..60a350e5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TANKB517.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TATIC518.ROM b/Source/Images/d_msxroms2/u0/TATIC518.ROM
new file mode 100644
index 00000000..b5885e3f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TATIC518.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TAWAR519.ROM b/Source/Images/d_msxroms2/u0/TAWAR519.ROM
new file mode 100644
index 00000000..edba0ed3
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TAWAR519.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TEARO520.ROM b/Source/Images/d_msxroms2/u0/TEARO520.ROM
new file mode 100644
index 00000000..f45c8c94
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TEARO520.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TELEB521.ROM b/Source/Images/d_msxroms2/u0/TELEB521.ROM
new file mode 100644
index 00000000..10a181a0
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TELEB521.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TENSA522.ROM b/Source/Images/d_msxroms2/u0/TENSA522.ROM
new file mode 100644
index 00000000..b3dc8df2
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TENSA522.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TENSI523.ROM b/Source/Images/d_msxroms2/u0/TENSI523.ROM
new file mode 100644
index 00000000..45b04fdd
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TENSI523.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TENSI524.ROM b/Source/Images/d_msxroms2/u0/TENSI524.ROM
new file mode 100644
index 00000000..dcdb9423
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TENSI524.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TETRA525.ROM b/Source/Images/d_msxroms2/u0/TETRA525.ROM
new file mode 100644
index 00000000..e856081b
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TETRA525.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TETRI526.ROM b/Source/Images/d_msxroms2/u0/TETRI526.ROM
new file mode 100644
index 00000000..d73af1aa
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TETRI526.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TETSU527.ROM b/Source/Images/d_msxroms2/u0/TETSU527.ROM
new file mode 100644
index 00000000..21ac3c25
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TETSU527.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/THEXD528.ROM b/Source/Images/d_msxroms2/u0/THEXD528.ROM
new file mode 100644
index 00000000..b290c4d8
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/THEXD528.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/THUND529.ROM b/Source/Images/d_msxroms2/u0/THUND529.ROM
new file mode 100644
index 00000000..0c91682c
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/THUND529.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/THUND530.ROM b/Source/Images/d_msxroms2/u0/THUND530.ROM
new file mode 100644
index 00000000..e0833da5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/THUND530.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TIMEP531.ROM b/Source/Images/d_msxroms2/u0/TIMEP531.ROM
new file mode 100644
index 00000000..5cadad1e
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TIMEP531.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TOPPL534.ROM b/Source/Images/d_msxroms2/u0/TOPPL534.ROM
new file mode 100644
index 00000000..03c8f2d2
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TOPPL534.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TOPRO533.ROM b/Source/Images/d_msxroms2/u0/TOPRO533.ROM
new file mode 100644
index 00000000..67bb2ebd
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TOPRO533.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TRACK535.ROM b/Source/Images/d_msxroms2/u0/TRACK535.ROM
new file mode 100644
index 00000000..4717a132
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TRACK535.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TRACK536.ROM b/Source/Images/d_msxroms2/u0/TRACK536.ROM
new file mode 100644
index 00000000..f1d6f286
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diff --git a/Source/Images/d_msxroms2/u0/TRAFF537.ROM b/Source/Images/d_msxroms2/u0/TRAFF537.ROM
new file mode 100644
index 00000000..266a2e3c
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diff --git a/Source/Images/d_msxroms2/u0/TRIAL538.ROM b/Source/Images/d_msxroms2/u0/TRIAL538.ROM
new file mode 100644
index 00000000..e4fd5a6b
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diff --git a/Source/Images/d_msxroms2/u0/TRICK539.ROM b/Source/Images/d_msxroms2/u0/TRICK539.ROM
new file mode 100644
index 00000000..a3b51702
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TRICK539.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TRITO540.ROM b/Source/Images/d_msxroms2/u0/TRITO540.ROM
new file mode 100644
index 00000000..b4f4bd47
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TRITO540.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TRUMP541.ROM b/Source/Images/d_msxroms2/u0/TRUMP541.ROM
new file mode 100644
index 00000000..c262b465
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TRUMP541.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TURBO543.ROM b/Source/Images/d_msxroms2/u0/TURBO543.ROM
new file mode 100644
index 00000000..425361d1
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TURBO543.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TWINB544.ROM b/Source/Images/d_msxroms2/u0/TWINB544.ROM
new file mode 100644
index 00000000..0acb5ba5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TWINB544.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TWINH545.ROM b/Source/Images/d_msxroms2/u0/TWINH545.ROM
new file mode 100644
index 00000000..085b73fc
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TWINH545.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/TZRGR546.ROM b/Source/Images/d_msxroms2/u0/TZRGR546.ROM
new file mode 100644
index 00000000..79063952
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/TZRGR546.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ULTRA547.ROM b/Source/Images/d_msxroms2/u0/ULTRA547.ROM
new file mode 100644
index 00000000..c72e3b1f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ULTRA547.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/VENUS549.ROM b/Source/Images/d_msxroms2/u0/VENUS549.ROM
new file mode 100644
index 00000000..1868ec69
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/VENUS549.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/VIDEO550.ROM b/Source/Images/d_msxroms2/u0/VIDEO550.ROM
new file mode 100644
index 00000000..54ac5feb
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/VIDEO550.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/VOLGU551.ROM b/Source/Images/d_msxroms2/u0/VOLGU551.ROM
new file mode 100644
index 00000000..04f0802d
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/VOLGU551.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/WARPW552.ROM b/Source/Images/d_msxroms2/u0/WARPW552.ROM
new file mode 100644
index 00000000..b0cd05e4
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/WARPW552.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/WARRO553.ROM b/Source/Images/d_msxroms2/u0/WARRO553.ROM
new file mode 100644
index 00000000..7d8fd51f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/WARRO553.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/WATER554.ROM b/Source/Images/d_msxroms2/u0/WATER554.ROM
new file mode 100644
index 00000000..fdf4a9eb
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/WATER554.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/WONDE556.ROM b/Source/Images/d_msxroms2/u0/WONDE556.ROM
new file mode 100644
index 00000000..1d7dbe0a
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/WONDE556.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/WRANG557.ROM b/Source/Images/d_msxroms2/u0/WRANG557.ROM
new file mode 100644
index 00000000..fa72406b
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diff --git a/Source/Images/d_msxroms2/u0/WRECK558.ROM b/Source/Images/d_msxroms2/u0/WRECK558.ROM
new file mode 100644
index 00000000..33c785cf
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/WRECK558.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/XYXOL559.ROM b/Source/Images/d_msxroms2/u0/XYXOL559.ROM
new file mode 100644
index 00000000..0a47a373
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/XYXOL559.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/YABYU560.ROM b/Source/Images/d_msxroms2/u0/YABYU560.ROM
new file mode 100644
index 00000000..798378d1
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/YABYU560.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/YELLO561.ROM b/Source/Images/d_msxroms2/u0/YELLO561.ROM
new file mode 100644
index 00000000..e3c572cb
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/YELLO561.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/YIEAR562.ROM b/Source/Images/d_msxroms2/u0/YIEAR562.ROM
new file mode 100644
index 00000000..483d2c9b
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/YIEAR562.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/YIEAR563.ROM b/Source/Images/d_msxroms2/u0/YIEAR563.ROM
new file mode 100644
index 00000000..052c56a9
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/YIEAR563.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/YOKAI564.ROM b/Source/Images/d_msxroms2/u0/YOKAI564.ROM
new file mode 100644
index 00000000..cc232151
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/YOKAI564.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZAIDE566.ROM b/Source/Images/d_msxroms2/u0/ZAIDE566.ROM
new file mode 100644
index 00000000..4fbe2559
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZAIDE566.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZANAC567.ROM b/Source/Images/d_msxroms2/u0/ZANAC567.ROM
new file mode 100644
index 00000000..4054ee2b
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZANAC567.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZANAC568.ROM b/Source/Images/d_msxroms2/u0/ZANAC568.ROM
new file mode 100644
index 00000000..a2d873b5
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZANAC568.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZAXXO569.ROM b/Source/Images/d_msxroms2/u0/ZAXXO569.ROM
new file mode 100644
index 00000000..30ac56fd
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZAXXO569.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZENJI570.ROM b/Source/Images/d_msxroms2/u0/ZENJI570.ROM
new file mode 100644
index 00000000..27e5d502
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZENJI570.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZEXAS571.ROM b/Source/Images/d_msxroms2/u0/ZEXAS571.ROM
new file mode 100644
index 00000000..b671d99f
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZEXAS571.ROM differ
diff --git a/Source/Images/d_msxroms2/u0/ZOOM9572.ROM b/Source/Images/d_msxroms2/u0/ZOOM9572.ROM
new file mode 100644
index 00000000..2dbcb313
Binary files /dev/null and b/Source/Images/d_msxroms2/u0/ZOOM9572.ROM differ
diff --git a/Source/Images/d_nzcom/ReadMe.txt b/Source/Images/d_nzcom/ReadMe.txt
index 15d11f7e..7c45e6f7 100644
--- a/Source/Images/d_nzcom/ReadMe.txt
+++ b/Source/Images/d_nzcom/ReadMe.txt
@@ -1,4 +1,4 @@
-===== NZCOM Disk for RomWBW =====
+===== NZ-COM Disk for RomWBW =====
 
 This disk is one of several ready-to-run disks provided with
 RomWBW.  It contains NZ-COM, which is an implementation of the
@@ -16,10 +16,10 @@ User Guide.pdf" document found in the Doc directory of the
 RomWBW Distribution.
 
 The primary documentation for NZ-COM is the "NZCOM Users Manual.pdf"
-document  contained in the Doc directory of the RomWBW distribution.
+document  contained in the Doc/CPM directory of the RomWBW distribution.
 This document is a supplement to the primary documentation.  Additionally,
 please review the file called RELEASE.NOT on this disk which contains
-a variety of updates regarding the NZ-COM distribuition.
+a variety of updates regarding the NZ-COM distribution.
 
 The starting point for the disk content was the final official release of
 NZ-COM which is generally available on the Internet.  A minimal
@@ -30,27 +30,24 @@ use the system effectively.
 
 == Usage ==
 
-NZCOM is not designed to load directly from the boot tracks of a
+NZ-COM is not designed to load directly from the boot tracks of a
 disk.  Instead, it expects to be loaded from an already running
 OS.  This disk has been configured to boot using ZSDOS with a
-PROFILE.SUB command file that automatically loads NZCOM.  So, NZCOM
+PROFILE.SUB command file that automatically loads NZ-COM.  So, NZ-COM
 will load completely without any intervention, but you may notice
-that ZSDOS loads first, then ZSDOS loads NZCOM.  This is normal.
-
-There is no DIR command.  Use SDZ or ZXD instead.
+that ZSDOS loads first, then ZSDOS loads NZ-COM.  This is normal.
 
 *** TODO: Date stamping ***
 
 == Notes ==
 
-NZCOM is distributed in an unconfigured state.  The following was
-done to create a minimal ready-to-run setup for RomWBW:
+NZ-COM is distributed in an unconfigured state.  The following was
+done to create a ready-to-run setup for RomWBW:
 
   - Ran MKZCM and saved default configuration to NZCOM.ZCM and
     NZCOM.ENV.
   - Extract VT100 TCAP from Z3TCAP.LBR and saved it as TCAP.Z3T.
   - Created PROFILE.SUB to launch NZCOM at startup.
-  - Created empty STARTZCM.COM.
   - Original TCSELECT.COM was removed and replaced with a newer version
     from the Z3 files.
   - TCAP.LBR and Z3TCAP.TCP were removed and replaced with
@@ -59,6 +56,20 @@ done to create a minimal ready-to-run setup for RomWBW:
     versions are provided from Common files.
   - Replaced ZRDOS with ZSDOS in NZCOM.LBR.  The standalone
     ZRDOS.ZRL and ZSDOS.ZRL files were saved.
+  - Copied ARUNZ.COM to CMDRUN.COM
+  - Moved all configuration files to 14: per ZCPR3 conventions
+  - Moved all help and documentation files to 10: per ZCPR3 conventions
+  - Moved executables to 15: per ZCPR3 conventions
+  - Updated HELP.COM to search for help files in A10: instead of A15:
+  - Updated LBRHELP.COM to search for help files in A10: instead of A15:
+  - Updated STARTZCM with
+  	ZPATH /C=A0:,$$:,A15: /D=A0:,A15:
+	NZCOM TCAP.Z3T
+  - Updated NZCOM.NDR in NZCOM.LBR with new directory names:
+  	A  0: SYSTEM    A 10: HELP      A 14: CONFIG    A 15: ROOT
+  - Moved DOCFILES.LBR to 10:
+  - Moved all TCJ files to 10:
+  - Added REN, SAVE, and SP commands to ALIAS.CMD
 
 The following additional customizations were also performed:
 
@@ -73,251 +84,14 @@ The following additional customizations were also performed:
     - Z3LOC.COM
     - ZCNFG.COM
 
-== NZCOM Files ==
-
-The following files came from the official NZCOM distribution.  These
-are generally documented in the "NZCOM Users Manual.pdf" document in
-the Doc directory of the RomWBW distribution.  Note that some of the
-files included in the NZ-COM distribution are not listed below because
-they have been superseded by more recent versions listed in other
-sections below.  For example, TCSELECT is not listed here, but a more
-recent version is included and documented in the General Purpose
-Applications section below.
-
-!(C)1988 - Original copyright (since placed in public domain)
-!NZ-COM - Software marker directory entry (empty file)
-!VERS--1.2H - Version marker directory entry (empty file)
-ALIAS.CMD - Sample alias definitions for use with ARUNZ
-ARUNZ.COM - Alias-RUN-forZ-System command alias execution
-BGZRDS19.LBR - ???
-CLEDINST.COM - Configure RCP-resident command line editor
-CLEDSAVE.COM - Save RCP-resident command line editor history
-CONFIG.LBR - Various configuration files for use with ZCNFG
-CPSET.COM - Displays/defines CRT/PRT characteristics
-DOCFILES.LBR - Documentation and help files collected into an LBR file
-EDITNDR.COM - Edit named directory register in memory
-FCP.LBR - Library of alternative FCP modules
-FF.COM - File finder utility
-HELP.COM - (HELPC14) is an improved version of the help utility
-HLPFILES.LBR - Various app help files for use with LBRHELP
-IF.COM - Extended flow control tester
-JETLDR.COM - Z-System package loader
-LBRHELP.COM - Help file viewer for use with help file libraries (.LBR)
-LDIR.COM - Directory lister for libraries (.LBR)
-LPUT.COM - Puts file(s) into a library (.LBR)
-LSH-HELP.COM - Display LSH help when LSH is running
-LSH.COM - Command history shell and command line editor
-LSH.WZ - User manual for LSH
-LSHINST.COM - LSH configuration editor
-LX.COM - Execute programs directly from a library (.LBR)
-MKZCM.COM - Create/update NZ-COM load environment
-NAME.COM - Quickly add or remove a name for a single directory
-NZ-DBASE.INF - dBase II application note regarding SUBMIT files
-NZBLITZ.COM - Rapid coldboot of complete NZ-COM system image
-NZBLTZ14.CFG - ZCNFG configuration file for NZBLITZ
-NZBLTZ14.HZP - Help file for NZBLITZ
-NZCOM.COM - Loads and launches NZ-COM system
-NZCOM.ENV - Z-System environment descriptor
-NZCOM.LBR - Library containing NZ-COM system modules
-NZCOM.ZCM - NZ-COM environment descriptor (alternate format)
-NZCPR.LBR - Library of alternative ZCPR modules
-PATH.COM - Set/display command search path
-PROFILE.SUB - Command file to auto-start NZ-COM at system boot
-PUBLIC.COM - Specify ZRDOS public directories/user areas
-PWD.COM - Displays DU and Directory Names with paging
-RCP.LBR - Library of alternative RCP modules
-RELEASE.NOT - Update information on NZ-COM
-SAINST.COM - Install/configure SALIAS
-SALIAS.COM - Screen oriented alias editor
-SAVENDR.COM - Writes the named directory register to disk
-SDZ.COM - Enhanced directory lister
-SHOW.COM - Display Z-System configuration information
-STARTZCM.COM - Commands to execute after NZ-COM is launched
-SUB.COM - Enhanced version of SUBMIT
-TCJ.INF - Description of included articles from The Computer Journal
-TCJ*.WZ - Selected articles from The Computer Journal
-TY3ERA.COM - Type 3 erase command
-TY3REN.COM - Type 3 rename command
-TY4ERA.COM - Type 4 erase command
-TY4REN.COM - Type 4 rename command
-TY4SAVE.COM - Type 4 save command
-TY4SP.COM - Type 4 disk space command
-VIEW.COM - Quad directional file viewer
-XTCAP.COM - Interactive Extended TCAP Installer
-Z3TCAP.TCP - Database of terminal descriptors
-ZERR.COM - Z34 Error Handler
-ZEX.COM - Powerful command line processor
-ZF-DIM.COM - Point-and-shoot user interface for dim-video terminals
-ZF-REV.COM - Point-and-shoot user interface for reverse-video terminals
-ZFILEB38.LZT - Brief listing of Z-System support programs
-ZFILER.CMD - Macro script file for ZFILER
-ZHELPERS.LZT - List of volunteers who will help installing Z-System
-ZLT.COM - File lister with support for compressed files
-ZNODES66.LZT - List of Z-Node remote access systems
-ZRDOS.ZRL - Relocatable version of ZRDOS BDOS module
-ZSDOS.ZRL - Relocatable version of ZSDOS 1.1 BDOS module
-ZSYSTEM.IZF - Information on Z-System and related products
-
-== CP/M 2.2 Files ==
-
-The following files have been included from CP/M 2.2.  These files
-provide various functionality that is not really available from the
-ZSDOS applications themselves.  For example, the CP/M 2.2 application
-called STAT is useful for modifying the IOBYTE.  Most of these
-applications are documented in the "CPM Manual.pdf" document in the Doc
-directory of the RomWBW distribution.
-
-ASM.COM - DRI 8080 assembler producing Intel hex files
-LIB.COM - DRI relocatable object file librarian
-LINK.COM - DRI relocatable object file linker
-LOAD.COM - DRI loader for Intel hex files
-MAC.COM - DRI 8080 macro assembler producing Intel hex files
-RMAC.COM - DRI 8080 macro assembler producing relocatable object files
-STAT.COM - DRI multi-purpose file/disk/device info & configuration tool
-SUBMIT.COM - DRI batch file submission tool
-XSUB.COM - DRI batch file enhancer resident system extension
-
-== ZSDOS Files ==
-
-The following files came from the official ZSDOS distribution.  These
-are generally documented in the "ZSDOS Manual.pdf" document in the Doc
-directory of the RomWBW distribution.  These files are relevant under
-NZ-COM because ZSDOS is a part of the NZ-COM system.
-
-BGPATCH.HEX - Patches BackGrounder II for ZSDOS 1.1 compatibility
-CLOCKS.DAT - Library of clock drivers
-COPY.CFG - ZCNFG configuration file for COPY
-COPY.COM - Enhanced file copy tool
-COPY.UPD - Document describing updates to COPY program
-DATSWEEP.COM - File management utility w/ date/time stamp awareness
-DSCONFIG.COM - Program to configure DATSWEEP
-FA16.CFG - ZCNFG configuration file for FILEATTR
-FA16.DOC - Documentation for FILEATTR
-FA16A.FOR - Summary of FILEATTR program version 16a
-FA16CFG.TXT - Document describes FILEATTR configuration options
-FILEATTR.COM - Set and/or display file attributes
-FILEDATE.CFG - ZCNFG configuration fie for FILEDATE
-FILEDATE.COM - Date/time stamping aware disk directory utility
-INITDIR.CFG - ZCNFG configuration file for INITDIR
-INITDIR.COM - Prepare disk for P2DOS date/time stamping
-LDDS.COM - Load DateStamper date/time stamping resident extension
-LDNZT.COM - Load NZT date/time stamping resident extension
-LDP2D.COM - Load P2DOS date/time stamping resident extension
-PUTBG.COM - Updated replacement for BackGrounder II PUTBG program
-PUTDS.COM - Prepare disk for DateStamper date/time stamping
-RELOG.COM - Clear fixed disk login vector in ZSDOS (see manual)
-SETTERM.COM - Terminal configuration utility for DATSWEEP & DSCONFIG
-SETUPZST.COM - Creates customized date/time stamping resident extensions
-STAMPS.DAT - Library of available date/time stamping modules for SETUPZST
-TD.CFG - ZCNFG configuration file for TD
-TD.COM - Read and set system real-time clock
-TERMBASE.DAT - Library of terminals used by SETTERM
-TESTCLOK.COM - Test a selected clock driver
-ZCAL.COM - Display a small one-month calendar to the screen
-ZCNFG.COM - Configuration tool for programs with .CFG files
-ZCNFG24.CFG - ZCNFG configuration file for ZCNFG
-ZPATH.COM - Set or display ZSDOS and ZCPR search paths
-ZSCONFIG.COM - Dynamically configure features of ZSDOS operating system
-ZSVSTAMP.COM - Preserves file date/time stamp across modifications
-ZSVSTAMP.DOC - Document describes the use and operation of ZSVSTAMP
-
-== RomWBW Supplemental Applications ==
-
-The following files provide specific functionality enabled by
-RomWBW enhancements.  These applications are documented in the
-"RomWBW Applications.pdf" document in the Doc directory of the
-RomWBW Distribution.
-
-ASSIGN.COM - Assign,remove,swap drive letters of RomWBW disk slices
-FAT.COM - MS-DOS FAT filesystem tool (list, copy, delete, format, etc.)
-FDU.COM - Test floppy hardware and format floppy disks
-FORMAT.COM - Placeholder application with formatting instructions
-INTTEST.COM - Test RomWBW interrupt processing on your hardware
-MODE.COM - Change serial line characteristics (baud rate, etc.)
-RTC.COM - Test real time clock hardware on your system
-SURVEY.COM - Display system resources summary
-SYSCOPY.COM - Copy system tracks to disks (make bootable)
-SYSGEN.COM - Copy system tracks to disks (DRI version)
-TALK.COM - Route console I/O to & from specified serial port
-TIMER.COM - Test and display system timer ticks
-TUNE.COM - Play .PT2, .PT3, and .MYM audio files on supported hardware
-XM.COM - XModem file transfer application
-ZMP.COM - ZModem communications program (requires dedicated comm port)
-ZMP.DOC - Documentation for ZMP
-ZMP.HLP - Help file for ZMP
-ZMXFER.OVR - Overlay file for ZMP
-ZMTERM.OVR - Overlay file for ZMP
-ZMINIT.OVR - Overlay file for ZMP
-ZMCONFIG.OVR - Overlay file for ZMP
-
-== General Purpose Applications ==
-
-The following files are commonly used CP/M applications that
-are generally useful in any CP/M-like system.  In general, there is
-no documentation for these applications included with the RomWBW
-distribution.  Some provide command line help themselves.  Some
-are fairly obvious.
-
-CLRDIR.COM - Initializes the directory area of a disk
-COMPARE.COM - Compare content of two files (binary)
-CRUNCH.COM - Compress file(s) using Crunch algorithm
-CRUNCH28.CFG - ZCNFG configuration file for CRUNCH & UNCR
-DDTZ.COM - Z80 debug tool (modified to use RST 6)
-DDTZ.DOC - Documentation for DDTZ
-EX.COM - Batch file processor (alternative to DRI SUBMIT)
-FDISK80.COM - Hard disk partitioning tool (from John Coffman)
-FIND.COM - Search all drives for a file (from Jay Cotton)
-FLASH.COM - Program FLASH chips in-situ (from Will Sowerbutts)
-FLASH.DOC - Documentation for FLASH
-MBASIC.COM - Microsoft BASIC language interpreter
-NULU.COM - Library (.LBR) management tool
-PMARC.COM - Create or add file(s) to .PMA archive
-PMEXT.COM - Extract file(s) from .PMA/.LZH/.LHA archive
-RMXSUB1.COM - Remove XSUB1 RSX from memory (from Lars Nelson)
-SUPERSUB.COM - Enhanced replacement for DRI SUBMIT
-SUPERSUB.DOC - Documentation for SUPERSUB
-TDLBASIC.COM - TDL Zapple 12K BASIC language interpreter
-UNARC.COM - Extract file(s) from .ARC or .ARK archive
-UNARC.DOC - Documentation for UNARC
-UNCR.COM - Decompress Crunched file(s)
-UNZIP.COM - UNZIPZ extracts from all MS-DOS ZIP files (from Lars Nelson)
-UNZIP.DOC - Documentation for UNZIPZ
-XSUB1.COM - Replacement for DRI SUB (from Lars Nelson)
-ZAP.COM - Interactive disk & file utility
-ZDE.COM - Compact WordStar-like editor
-ZDENST.COM - Installation/configuration tool for ZDE
-KERCPM22.COM - Kermit file transfer application
-LBREXT.COM - Extract file from .LBR libraries
-LBREXT36.CFG - ZCNFG configuration file for LBREXT
-ZXD.COM - Enhanced directory lister w/ date/time stamp support
-ZXD.CFG - ZCNFG configuration file for ZXD
-BBCBASIC.COM - BBC BASIC CP/M Version 3.00 by R.T.Russell
-BBCBASIC.TXT - Help file for BBC BASIC
-GENHEX.COM - Generates an Intel Hex file from the input file
-LS.COM - An alternative file listing to DIR
-LSWEEP.COM - Can extract and view member files of an .LBR archive
-
-== Testing Applications (User Area 2) ==
-
-User area 2 contains a variety of hardware testing applications.
-These are generally user contributed and have no documentation.
-Additionally, they are frequently not compatible with all RomWBW
-hardware.  They are included here as a convenience.  If applicable,
-your hardware documentation should refer to them and provide usage
-instructions.
-
-== Sample Tune Files (User Area 3) ==
-
-User area 3 contains sample audio files that can be played using
-the TUNE application.
-
-== CP/NET 1.2 (User Area 4) ==
+While including Z3PLUS disk image the SHOW.COM and HELP.COM
+files were renamed to ZSHOW.COM and ZHELP.COM for consistency
+with Z3PLUS, and ZPM3
 
-User area 4 contains a full implementation of the CP/NET 1.2
-client provided by Doug Miller.  Please read the README.TXT file
-in this user area for more information.
+== NZ-COM Files ==
 
-N.B., at a minimum, some of the files in this user area must be copied
-to user area 0 for CP/NET to work properly.
+For a description of the files contained in this disk please see the
+"Rom WBW Disk Catalog.pdf" document contained in the Doc directory
+of the RomWBW distribution.
 
--- WBW 11:19 AM 1/22/2024
\ No newline at end of file
+-- WBW 7:14 PM 8/17/2024
diff --git a/Source/Images/d_nzcom/u0/ALIAS.CMD b/Source/Images/d_nzcom/u0/ALIAS.CMD
deleted file mode 100644
index 936006c3..00000000
Binary files a/Source/Images/d_nzcom/u0/ALIAS.CMD and /dev/null differ
diff --git a/Source/Images/d_nzcom/u0/HELP.COM b/Source/Images/d_nzcom/u0/HELP.COM
deleted file mode 100644
index 58b4d6fc..00000000
Binary files a/Source/Images/d_nzcom/u0/HELP.COM and /dev/null differ
diff --git a/Source/Images/d_nzcom/u0/LBRHELP.COM b/Source/Images/d_nzcom/u0/LBRHELP.COM
deleted file mode 100644
index eb1ef6ee..00000000
Binary files a/Source/Images/d_nzcom/u0/LBRHELP.COM and /dev/null differ
diff --git a/Source/Images/d_nzcom/u0/NZCOM.LBR b/Source/Images/d_nzcom/u0/NZCOM.LBR
index ba93bc11..b62e3240 100644
Binary files a/Source/Images/d_nzcom/u0/NZCOM.LBR and b/Source/Images/d_nzcom/u0/NZCOM.LBR differ
diff --git a/Source/Images/d_nzcom/u0/PROFILE.SUB b/Source/Images/d_nzcom/u0/PROFILE.SUB
index e7c32d08..f494e311 100644
--- a/Source/Images/d_nzcom/u0/PROFILE.SUB
+++ b/Source/Images/d_nzcom/u0/PROFILE.SUB
@@ -1,2 +1,2 @@
-NZCOM NZCOM.ZCM TCAP.Z3T
-
\ No newline at end of file
+NZCOM NZCOM.ZCM
+
\ No newline at end of file
diff --git a/Source/Images/d_nzcom/u0/SAINST.COM b/Source/Images/d_nzcom/u0/SAINST.COM
deleted file mode 100644
index 1e6db48f..00000000
Binary files a/Source/Images/d_nzcom/u0/SAINST.COM and /dev/null differ
diff --git a/Source/Images/d_nzcom/u0/SALIAS.COM b/Source/Images/d_nzcom/u0/SALIAS.COM
deleted file mode 100644
index 9b85e041..00000000
Binary files a/Source/Images/d_nzcom/u0/SALIAS.COM and /dev/null differ
diff --git a/Source/Images/d_nzcom/u0/STARTZCM.COM b/Source/Images/d_nzcom/u0/STARTZCM.COM
index 2deda943..bfd1ce2b 100644
Binary files a/Source/Images/d_nzcom/u0/STARTZCM.COM and b/Source/Images/d_nzcom/u0/STARTZCM.COM differ
diff --git a/Source/Images/d_nzcom/u0/BGZRDS19.LBR b/Source/Images/d_nzcom/u10/BGZRDS19.LBR
similarity index 100%
rename from Source/Images/d_nzcom/u0/BGZRDS19.LBR
rename to Source/Images/d_nzcom/u10/BGZRDS19.LBR
diff --git a/Source/Images/d_nzcom/u0/NZ-DBASE.INF b/Source/Images/d_nzcom/u10/NZ-DBASE.INF
similarity index 100%
rename from Source/Images/d_nzcom/u0/NZ-DBASE.INF
rename to Source/Images/d_nzcom/u10/NZ-DBASE.INF
diff --git a/Source/Images/d_nzcom/u0/NZBLTZ14.HZP b/Source/Images/d_nzcom/u10/NZBLTZ14.HZP
similarity index 100%
rename from Source/Images/d_nzcom/u0/NZBLTZ14.HZP
rename to Source/Images/d_nzcom/u10/NZBLTZ14.HZP
diff --git a/Source/Images/d_nzcom/u0/RELEASE.NOT b/Source/Images/d_nzcom/u10/RELEASE.NOT
similarity index 100%
rename from Source/Images/d_nzcom/u0/RELEASE.NOT
rename to Source/Images/d_nzcom/u10/RELEASE.NOT
diff --git a/Source/Images/d_nzcom/u0/NZBLTZ14.CFG b/Source/Images/d_nzcom/u14/NZBLTZ14.CFG
similarity index 100%
rename from Source/Images/d_nzcom/u0/NZBLTZ14.CFG
rename to Source/Images/d_nzcom/u14/NZBLTZ14.CFG
diff --git a/Source/Images/d_nzcom/u15/ALIAS.CMD b/Source/Images/d_nzcom/u15/ALIAS.CMD
new file mode 100644
index 00000000..7e60b436
Binary files /dev/null and b/Source/Images/d_nzcom/u15/ALIAS.CMD differ
diff --git a/Source/Images/d_nzcom/u15/CMDRUN.COM b/Source/Images/d_nzcom/u15/CMDRUN.COM
new file mode 100644
index 00000000..041b87c4
Binary files /dev/null and b/Source/Images/d_nzcom/u15/CMDRUN.COM differ
diff --git a/Source/Images/d_nzcom/u0/MKZCM.COM b/Source/Images/d_nzcom/u15/MKZCM.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/MKZCM.COM
rename to Source/Images/d_nzcom/u15/MKZCM.COM
diff --git a/Source/Images/d_nzcom/u0/NZBLITZ.COM b/Source/Images/d_nzcom/u15/NZBLITZ.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/NZBLITZ.COM
rename to Source/Images/d_nzcom/u15/NZBLITZ.COM
diff --git a/Source/Images/d_nzcom/u0/PUBLIC.COM b/Source/Images/d_nzcom/u15/PUBLIC.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/PUBLIC.COM
rename to Source/Images/d_nzcom/u15/PUBLIC.COM
diff --git a/Source/Images/d_nzcom/u0/SUB.COM b/Source/Images/d_nzcom/u15/SUB.COM
similarity index 100%
rename from Source/Images/d_nzcom/u0/SUB.COM
rename to Source/Images/d_nzcom/u15/SUB.COM
diff --git a/Source/Images/d_qpm/ReadMe.txt b/Source/Images/d_qpm/ReadMe.txt
index 5704aba2..7765bc86 100644
--- a/Source/Images/d_qpm/ReadMe.txt
+++ b/Source/Images/d_qpm/ReadMe.txt
@@ -36,12 +36,12 @@ code brakpoints.  This conflicts the use of that vector for any
 system that is using interrupt mode 1.  DEBUGZ can be configured
 (using DBGINST) to use a different vector.
 
-The QSTAMP program, which is used to initialize a disk for date/time 
-stamping, misbehavews when run on the (new) RomWBW 1024 directory 
-format disks.  It creates an invalid directory entry for the date/time 
-stamp data file.  This is definitely a QP/M issue.  The directory entry 
-can be manually corrected.  Specifically the byte offset 15 should 
-contain the number of 128-byte records in the file.  Instead, it is set 
+The QSTAMP program, which is used to initialize a disk for date/time
+stamping, misbehavews when run on the (new) RomWBW 1024 directory
+format disks.  It creates an invalid directory entry for the date/time
+stamp data file.  This is definitely a QP/M issue.  The directory entry
+can be manually corrected.  Specifically the byte offset 15 should
+contain the number of 128-byte records in the file.  Instead, it is set
 to 0x01.  You can edit the entry, change it to 0x80 and everything
 starts working.
 
@@ -92,7 +92,7 @@ The following files have been included from CP/M 2.2.  These files
 provide various functionality that is not really available from the
 ZSDOS applications themselves.  For example, the CP/M 2.2 application
 called STAT is useful for modifying the IOBYTE.  Most of these
-applications are documented in the "CPM Manual.pdf" document in the Doc
+applications are documented in the "CPM Manual.pdf" document in the Doc/CPM
 directory of the RomWBW distribution.
 
 ASM.COM - DRI 8080 assembler producing Intel hex files
@@ -175,7 +175,7 @@ LBREXT.COM - Extract file from .LBR libraries
 LBREXT36.CFG - ZCNFG configuration file for LBREXT
 ZXD.COM - Enhanced directory lister w/ date/time stamp support
 ZXD.CFG - ZCNFG configuration file for ZXD
-BBCBASIC.COM - BBC BASIC CP/M Version 3.00 by R.T.Russell
+BBCBASIC.COM - BBC BASIC CP/M Version by R.T.Russell
 BBCBASIC.TXT - Help file for BBC BASIC
 GENHEX.COM - Generates an Intel Hex file from the input file
 LS.COM - An alternative file listing to DIR
diff --git a/Source/Images/d_tpascal/Readme.txt b/Source/Images/d_tpascal/Readme.txt
index e318f988..10a736ca 100644
--- a/Source/Images/d_tpascal/Readme.txt
+++ b/Source/Images/d_tpascal/Readme.txt
@@ -8,7 +8,7 @@ and mathematician.
 Turbo Pascal closely follows the definition of Standard Pascal as defined in
 the Pascal User Manual and Report with a few minor differences.
 
-The manual can be found in the Docs directory,
+The manual can be found in the Docs/Language directory,
 Turbo_Pascal_Version_3.0_Reference_Manual_1986.pdf
 
 A good overview of using Turbo Pascal in CP/M is available at
diff --git a/Source/Images/d_z3plus/ReadMe.txt b/Source/Images/d_z3plus/ReadMe.txt
new file mode 100644
index 00000000..77441594
--- /dev/null
+++ b/Source/Images/d_z3plus/ReadMe.txt
@@ -0,0 +1,111 @@
+
+===== Z3PLUS Disk for RomWBW =====
+
+This disk is one of several ready-to-run disks provided with
+RomWBW.  It contains Z3PLUS, which is an implementation of the
+Z-System.  You may also see Z3PLUS referred to as ZCPR 3.4.  This is
+a powerful replacement for CP/M 3.
+
+The disk is bootable as is (the operating system image is already
+embedded in the system tracks) and can be launched from the RomWBW
+Loader prompt.  See the Usage and Notes sections below for more
+information on how Z3PLUS is loaded.
+
+The remainder of this document describes the usage and contents of
+this disk.  It is highly recommended that you review the "RomWBW
+User Guide.pdf" document found in the Doc directory of the
+RomWBW Distribution.
+
+The primary documentation for Z3PLUS is the "Z3PLUS Users Manual.pdf"
+document  contained in the Doc/CPM directory of the RomWBW distribution.
+This document is a supplement to the primary documentation.  Additionally,
+please review the file called RELEASE.NOT on this disk which contains
+a variety of updates regarding the Z3PLUS distribution.
+
+The starting point for the disk content was the final official release of
+Z3PLUS which is generally available on the Internet.  A minimal
+system generation was done just sufficient to get Z3PLUS to run under
+RomWBW.  Z3PLUS is extremely configurable and far more powerful than
+DRI CP/M.  It is almost mandatory that you read the Z3PLUS manual to
+use the system effectively.
+
+== Usage ==
+
+Z3PLUS is not designed to load directly from the boot tracks of a
+disk.  Instead, it expects to be loaded from an already running
+OS.  This disk has been configured to boot using CP/M 3 with a
+PROFILE.SUB command file that automatically loads Z3PLUS.  So, Z3PLUS
+will load completely without any intervention, but you may notice
+that CP/M 3 loads first, then CP/M 3 loads Z3PLUS.  This is normal.
+
+== Configration ==
+
+Z3PLUS is distributed in an unconfigured state.  The following was
+done to create a ready-to-run setup for RomWBW:
+
+  - Created PROFILE.SUB to launch Z3PLUS at startup.
+  - Created STARTZ3P.COM (alias) with
+	Z3PLUS /Q
+  	PATH /C $$$$ A15 A0
+  - Replaced DEFAULT.Z3T (IN Z3PLUS.LBR) with VT100 Term Definiton:
+  - Replaced DEFAULT.NDR (IN Z3PLUS.LBR) with new directory names:
+  	A0:SYSTEM  A10:HELP  A14:CONFIG  A15: ROOT
+  - Copied ARUNZ.COM to CMDRUN.COM
+  - Added REN, SAVE, and SP commands to ALIAS.CMD
+
+== Notes ==
+
+One of the bigger changes when deploying this image was the consoliadation
+of Files between NZCOM and Z3PLUS. Both of these distributions came
+from the same vendor and share the Same DNA, the primary difference being the
+underlying OS (and BDOS) being eithe CP/M 2.2 (NZCOM) or CP/M 3 (Z3PLUS)
+
+Thus a new "Common/NZ3PLUS" folder was created and sharded files
+move here, to avoid significant duplication. This was done with NZ-COM files (primarily)
+to ensure backwards compatability, and any improvements (done in NZ-COM) stick.
+
+Carried over from the NZCOM Changes
+  - Extract VT100 TCAP from Z3TCAP.LBR and saved it as TCAP.Z3T.
+  - Original TCSELECT.COM was removed and replaced with a newer version
+    from the Z3 files. TCAP.LBR and Z3TCAP.TCP were removed and replaced with
+    Z3TCAP.LBR from new TCSELECT distribution.
+  - Updated HELP.COM to search for help files in A10: instead of A15:
+  - Updated LBRHELP.COM to search for help files in A10: instead of A15:
+
+Files Moved
+  - Moved all help and documentation files to 10: per ZCPR3 conventions
+  - Moved DOCFILES.LBR to 10:
+  - Moved all TCJ files to 10:
+  - Moved all configuration files to 14: per ZCPR3 conventions
+  - Moved executables to 15: per ZCPR3 conventions
+
+Files Removed because newer versions are already included:
+  - COPY.COM
+  - CRUNCH.COM
+  - UNCRUNCH.COM
+  - LBREXT.COM
+  - ZCNFG.COM
+
+== Files ==
+
+For a description of the files contained in this disk please see the
+"Rom WBW Disk Catalog.pdf" document contained in the Doc directory
+of the RomWBW distribution.
+
+===========================================
+
+== Suggestions ==
+
+Some of the files currenty in A15 (NZCOM and Z3PLUS) look more like they
+should be in A0, as they are part of system definition / config
+rather than a general purpose utility .e.g.
+  - ALIAS.CMD - this one in particular contains config
+  - CMDRUN.COM - effectivly config since it is a copy of one of 2 files
+  - ?????
+
+
+
+
+
+
+
diff --git a/Source/Images/d_z3plus/u0/!(C)1988 b/Source/Images/d_z3plus/u0/!(C)1988
new file mode 100644
index 00000000..1be7cc2f
--- /dev/null
+++ b/Source/Images/d_z3plus/u0/!(C)1988
@@ -0,0 +1,20 @@
+		   Z3PLUS  COPYRIGHT (c) 1988
+			       by
+			Bridger Mitchell
+
+
+Z3PLUS(tm) - The Z-System for CP/M Plus, is copyright 1988 by
+Bridger Mitchell, all rights reserved.
+
+The Z3PLUS files and the Z3PLUS User's Manual may not be
+reproduced or distributed in any form.  A licensed user may
+make backup/archival copies for his or her own use only.
+
+Z3PLUS is available from:
+
+Bridger Mitchell
+Plu*Perfect Systems
+410 23rd Street
+Santa Monica CA 90402
+
+ distributed with Z3PLUS has been patched�to 
\ No newline at end of file
diff --git a/Source/Images/d_z3plus/u0/!VERS--1.02F b/Source/Images/d_z3plus/u0/!VERS--1.02F
new file mode 100644
index 00000000..e69de29b
diff --git a/Source/Images/d_z3plus/u0/!Z3PLUS b/Source/Images/d_z3plus/u0/!Z3PLUS
new file mode 100644
index 00000000..e69de29b
diff --git a/Source/Images/d_z3plus/u0/PROFILE.SUB b/Source/Images/d_z3plus/u0/PROFILE.SUB
new file mode 100644
index 00000000..841d1413
--- /dev/null
+++ b/Source/Images/d_z3plus/u0/PROFILE.SUB
@@ -0,0 +1,2 @@
+z3plus
+
\ No newline at end of file
diff --git a/Source/Images/d_z3plus/u0/RCP.LBR b/Source/Images/d_z3plus/u0/RCP.LBR
new file mode 100644
index 00000000..fdc452f6
Binary files /dev/null and b/Source/Images/d_z3plus/u0/RCP.LBR differ
diff --git a/Source/Images/d_z3plus/u0/STARTZ3P.COM b/Source/Images/d_z3plus/u0/STARTZ3P.COM
new file mode 100644
index 00000000..44d77f3d
Binary files /dev/null and b/Source/Images/d_z3plus/u0/STARTZ3P.COM differ
diff --git a/Source/Images/d_z3plus/u0/Z3PLUS.COM b/Source/Images/d_z3plus/u0/Z3PLUS.COM
new file mode 100644
index 00000000..29717aa4
Binary files /dev/null and b/Source/Images/d_z3plus/u0/Z3PLUS.COM differ
diff --git a/Source/Images/d_z3plus/u0/Z3PLUS.LBR b/Source/Images/d_z3plus/u0/Z3PLUS.LBR
new file mode 100644
index 00000000..f1f51b37
Binary files /dev/null and b/Source/Images/d_z3plus/u0/Z3PLUS.LBR differ
diff --git a/Source/Images/d_z3plus/u10/PATCH4SK.HEX b/Source/Images/d_z3plus/u10/PATCH4SK.HEX
new file mode 100644
index 00000000..14b59ae1
Binary files /dev/null and b/Source/Images/d_z3plus/u10/PATCH4SK.HEX differ
diff --git a/Source/Images/d_z3plus/u10/PATCHSK.SUB b/Source/Images/d_z3plus/u10/PATCHSK.SUB
new file mode 100644
index 00000000..b38fbfdc
Binary files /dev/null and b/Source/Images/d_z3plus/u10/PATCHSK.SUB differ
diff --git a/Source/Images/d_z3plus/u10/RELEASE.NOT b/Source/Images/d_z3plus/u10/RELEASE.NOT
new file mode 100644
index 00000000..5573f0e6
--- /dev/null
+++ b/Source/Images/d_z3plus/u10/RELEASE.NOT
@@ -0,0 +1,295 @@
+
+                 RELEASE.NOT - UPDATE INFORMATION ON Z3PLUS
+
+
+Please understand that unlike purely commercial enterprises, Z-System is
+mainly the work of enthusiasts.  As such, Z-System never truly reaches
+completion; each new development is more of a plateau upon which further
+innovation occurs.  Though we have done our best, the printed documentation
+inevitably lags behind the most recent enhancements.  Try to consult as
+much material as possible about a given command before proceeding; if there
+is a help or document file pertaining to the command, it supercedes printed
+instructions, especially with regard to such matters as syntax or technical
+specifications.
+
+
+Notes of September 12, 1991
+===========================
+
+Release 1.02E involves a significant updating of the support utilities
+that we distribute as a courtesy with Z3PLUS.  We suggest that any Z-System
+user who is not in regular contact with a Z-Node consider taking advantage
+of the Z-System Software Update Service (ZSUS).  Here are some of the
+important changes with this release.
+
+ZCNFG.COM, CONFIG.LBR:
+        Al Hawley has introduced a powerful and convenient method for
+        configuring programs.  ZCNFG works either with individual CFG files
+        or with CFG files stored in the CONFIG.LBR library.  For example,
+        try running the command "ZCNFG ZLT".  ZCNFG will automatically
+        extract ZLT15.CFG from CONFIG.LBR.
+
+LBREXT.COM:
+        This replaces LGET for extracting member files from LBR library
+        files.
+
+ZHELP.COM, LBRHELP.COM, HLPFILES.LBR:
+        ZHELP (actually HELPC14) is an improved version of the help utility.
+        It can work with normal help files (HLP) and crunched help files
+        (HZP).  LBRHELP can work with normal or crunched help files that are
+        stored in a library (which is where we have put all the help files
+        distributed with NZCOM and Z3PLUS).
+
+DOCFILES.LBR:
+        Documentation and help files have been collected into an LBR file.
+
+ZLT.COM:
+        This is a full Z-System replacement for LT, and it handles the
+        latest LZH-compressed files.
+
+COPY.COM:
+        This is the version of COPY from the ZSDOS/ZDDOS release.  Enter
+        "COPY //" for syntax information.  It replaces a dangerously
+        defective copy program provided with earlier releases.
+
+LSH.COM, LSH.WZ, LSH-HELP.COM, LSHINST.COM, ZERR.COM:
+        These are the latest LSH command history shell and command-line
+        editor and the associated error handler (fixed-log versions).  These
+        completely replace EASE.
+
+CLEDINST.COM, CLEDSAVE.COM:
+        A transient history shell like LSH can be slow on floppy systems
+        with sluggish disk drives, even if the files have been placed in
+        optimal locations.  Some of the RCP modules supplied no include an
+        RCP-resident command-line editor called CLED.  Its features can be
+        configured using CLEDINST.COM, and the history can be saved to a
+        file using CLEDSAVE.COM.
+
+TCAP.LBR, XTCAP.COM:
+        A number of programs now require a terminal capabilities descriptor
+        (TCAP) with extended functions.  The standard TCAPs loaded with
+        TCSELECT do not have these functions.  TCAP.LBR is a collection of
+        extended TCAPs for some terminals.  XTCAP.COM is a program that can
+        add the most important extensions to a standard TCAP (it is a quick-
+        and-dirty fix until the full set of TCAPs is updated).
+
+VIEW.COM:
+        This is Bridger Mitchell's file viewing utility.  It is very
+        powerful (but it requires an extended TCAP).
+
+NAME.COM:
+        This program can quickly add or remove a name for a single
+        directory.
+
+TCJ.INF:
+        TCJ has a new publisher (one of our own Z-Node sysops), and this
+        file tells how to take out a subscription (which all Z-System users
+        absolutely should do!).
+
+ZFILEB38.LZT:
+        This is the BRIEF listing of all the support programs currently
+        available for use with Z-System.  There is another file which
+        includes descriptions of all the programs, but it would fill up an
+        entire diskette!
+
+
+
+Notes of November 5, 1989
+=========================
+
+
+              1.  TCSELECT PROBLEM.
+              2.  LSH REPLACES EASE.
+              3.  COPY LDIR.COM TO A0:.
+              4.  CHOICE OF MODULE SIZES.
+              5.  YOU NEED REN.COM.
+              6.  ZHELP.COM.
+              7.  OSBORNE EXECUTIVE ROM BUG.
+              8.  SMARTKEY BUGS.
+              9.  COMPATIBILITY WITH BYE.
+              10. MINOR UPDATE NOTES.
+              11. TO NEW Z-SYSTEM USERS.
+              12. NEW DEFAULTS AND NEW FILES: FCP.LBR, RCP.LBR.
+
+
+1.  TCSELECT PROBLEM.
+
+A problem has been discovered with the operation of TCSELECT as described
+in the manual.  TCSELECT is a Z-System program and does not function
+reliably under CP/M (on some systems it causes a crash).  Fortunately, there
+is a simple fix: reverse the order of the instructions in the manual.  Boot
+up Z3PLUS before attempting to create MYTERM.Z3T, and run TCSELECT only
+after Z3PLUS is running.  Remember that you need both TCSELECT.COM and
+Z3TCAP.TCP to generate your .Z3T file.  The entries in the Z3TCAP library
+for the Xerox computers have been patched to correct a long-standing error.
+
+
+2.  LSH REPLACES EASE.
+
+EASE has been replaced by a newer, more versatile, and well-behaved program
+named LSH (Log SHell).  Like EASE, LSH allows you to edit command lines
+using WordStar-like control.  Consult LSH.WZ before use for general
+information and/or run HELPLSH while running LSH for a display of LSH's
+capabilities.  LSHINST installs and customizes LSH to taste.  Error
+handling is now taken care of by ZERR.COM, a separate program.  Our great�
+thanks to Rob Friefeld for writing these superb Z-System tools and for�
+allowing us to include them with NZ-COM.
+
+
+3.  COPY LDIR.COM TO A0:.
+
+We neglected to include LDIR.COM in the list of files to copy to your A0:
+directory.  Some of the examples in the manual will not work correctly if
+LDIR is not available as a command.
+
+
+4.  CHOICE OF MODULE SIZES.
+
+Because of the page alignment of the Z3PLUS system, if the total number of
+records required by the NDR, FCP, and RCP combined is an odd number, you
+can generally increase the size of one of the modules by 1 record without
+losing any additional TPA.  We have, therefore, increased the number of
+names in the NDR from 14, as stated in the manual, to 21.  Until you reach
+a large number of names (more than 60), you can figure one record of memory
+for each 7 names.
+
+
+5.  YOU NEED REN.COM.
+
+Because there is no resident REN command with the standard version of
+Z3PLUS, you should copy the transient version TY4REN.COM to directory A0:
+under the name REN.COM.
+
+
+6.  ZHELP.COM.
+
+The standard form of HELP.COM sets up a file control block with the file
+type H?P in it so that either an HLP or a squeezed HQP file can be opened.
+While this works with a CP/M-2.2 BDOS (which is happy to open the first
+file that matches a wildcard FCB), it is trapped as an error by the
+CP/M-Plus BDOS.  The version of ZHELP distributed with Z3PLUS has been
+patched to look only for HLP files.  If you pick up any later releases of
+this program, it is possible that you will experience this problem.  We
+will try to alert the programming community to this problem so that future
+Z-System programs will be compatible with CP/M-Plus.
+
+
+7.  OSBORNE EXECUTIVE ROM BUG.
+
+Testing on an early version (1.20) of the Executive's boot ROM showed that
+Z3PLUS would not load because the ROM misused the Z80 index registers.
+Version 1.21 of the Osborne Executive ROM works correctly and is available
+from FOG (First Osborne Group).  Alternatively, a utility named TPATCH is
+available on bulletin boards.  TPATCH can be run after cold-booting the
+Executive, and before Z3PLUS is loaded.
+
+
+8.  SMARTKEY BUGS.
+
+Smartkey II version 1.0A will often not run on banked-memory CP/M Plus
+computers; this problem is more likely to occur if Z3PLUS is loaded.  The
+SUBMIT file PATCHSK.SUB, which installs PATCH4SK.HEX into Smartkey, appears
+to correct this bug.
+
+If you use Smartkey, read the submit file carefully, be sure you have
+exactly this version of Smartkey and the other necessary files, and test on
+your system.
+
+We and other users would appreciate hearing from you whether/how-well this
+works.  We cannot support the Smartkey product but will be happy to make
+the source code of the patch available for others to develop further.
+
+
+9.  COMPATIBILITY WITH BYE.
+
+BYE, the remote access program for CP/M, causes some difficulties when run
+with Z3PLUS.  In technical terms, BYE alters the bytes in the CP/M-Plus SCB,
+which Z3PLUS uses to tell when a CP/M-Plus SUBMIT job is running, and BYE
+does not restore these bytes on exit.  Since SUBMIT jobs have a higher
+priority than shells in the Z-System command hierarchy, BYE causes Z3PLUS
+to simply return when the user attempts to run shell programs such as
+ZFILER or LSH under (or after) BYE.
+
+If you MUST use shells with BYE, you can remove SUBMIT job detection by
+installing the patch below.  The only drawback is that SUBMIT and shells
+will no longer run concurrently.  However, the new ZEX 5.0 (included in
+this package) surpasses SUBMIT for all purposes except startup of Z3PLUS
+(not affected by the patch) and extremely TPA-critical situations, so this
+should not be a problem.
+
+The patch is as follows.  Extract your DEFCP3.ZRL file from Z3PLUS.LBR.
+Use a patcher to look at the first page of the file.  You should find the
+string "Z3PLUSCP 6/25/88 v 1.00".  If so, go to offset 985 hex in the file.
+The two bytes at this location should be D6 and C3 hex.  Change them to AF
+AF.  Now use LPUT or NULU to put DEFCP3.ZRL back in Z3PLUS.LBR and restart
+Z3PLUS.
+
+
+10. MINOR UPDATE NOTES.
+
+- The RCP WHLQ command no longer used.  "WHL" alone displays the current
+  wheel status.  As before, "WHL password" turns the wheel byte on.  "WHL
+  xxx" now turns the wheel byte OFF if xxx is something other than the
+  correct password.
+
+- ARUNZ is now a type-4 program which loads at the highest possible
+  memory location so as to save lower memory for immediate re-execution
+  with GO.  See ARUNZ09R.DZC and TCJ31.MZG (as well as your NZ-COM or
+  Z3PLUS manual) for more on the amazing ARUNZ.
+
+- VLU is no longer included, as it was not reliable.  Please use LDIR,
+  LGET, LPUT, and LT instead to manipulate library files.
+
+- At this writing, we are sorry to note that both Z-Node Central and the
+  Lillipute Z-Nodes mentioned in Chapter 7 of your manual are out of
+  service.  Z-Nodes 2 and 3 are still going strong, however, as are the
+  many others listed in ZNODES.LST.  Z-Node 2 is the new Z-Node Central.
+  We cannot recommend highly enough that you get a modem and investigate at
+  least one Z-Node as a source of inspiration and support.
+
+- Version 5.0 of the ZEX batch processor replaces earlier versions.  ZEX
+  now runs under both NZ-COM and Z3PLUS and is a very powerful means of
+  customizing programs and commands.  The ZEX.RSX file mentioned in the
+  manual is no longer required.  See ZEX50.DZC for help.
+
+
+11. TO NEW Z-SYSTEM USERS.
+
+- All files whose middle filetype character is "Z" (e.g., SAMPLE.DZC) are
+  "crunched" files which must be uncompressed with LT.COM or UNCRUNCH.COM
+  before use.
+
+- As outlined in section 4.3.2 of your manual, most Z-System programs
+  have built-in help; type the name of any program followed by "//" for a
+  short description if you are confused.
+
+- Finally, it is not at all necessary to master every nuance of the system
+  before it becomes useful.  Please don't try to devour all of Z-System at
+  once.  Instead, we suggest that you decide what aspects of the system you
+  will find most helpful and try to master one or two of those before
+  exploring further.  We think you will find that if you choose wisely,
+  learning one aspect fully not only makes that aspect of your computing
+  world easier, it also equips you with the skills and confidence with
+  which to surmount other aspects of Z-System more confidently.
+
+
+12. NEW DEFAULTS AND NEW FILES: FCP.LBR, RCP.LBR.
+
+To minimize disk space requirements, Z3PLUS.LBR contains only some standard
+configurations of the FCP and RCP modules.  Alternative versions of these
+modules are now supplied in separate libraries.  Modules can be loaded
+directly from these libraries, or individual files can be extracted and put
+into Z3PLUS.LBR to replace the default files.  Each library has a brief DOC
+file describing the modules (some of which are the default versions included
+in Z3PLUS.LBR).
+
+Carson Wilson and Rob Friefeld have made some major changes in the RCP code
+(see the DOC file in RCP.LBR).  The standard RCP module is now 18 records
+long instead of 16, and the large RCP module is 36 records long.  The system
+configuration files DEFAULT.Z3P and LARGE.Z3P have been edited to reflect
+these changes.  The TPA requirements listed on page 54 of the manual are no
+longer correct.
+
+
+                          - End of RELEASE.NOT -
+
diff --git a/Source/Images/d_z3plus/u15/ALIAS.CMD b/Source/Images/d_z3plus/u15/ALIAS.CMD
new file mode 100644
index 00000000..a6f81a93
Binary files /dev/null and b/Source/Images/d_z3plus/u15/ALIAS.CMD differ
diff --git a/Source/Images/d_z80asm/Readme.txt b/Source/Images/d_z80asm/Readme.txt
index 153d3107..03d79c26 100644
--- a/Source/Images/d_z80asm/Readme.txt
+++ b/Source/Images/d_z80asm/Readme.txt
@@ -6,9 +6,9 @@ and stores the output in either a core-image, Intel hex format, or relocatable
 object file. The mnemonics recognized are those of Zilog/Mostek. The optional
 listing output may be sent to a disk file, the console and/or the printer, in
 any combination. Output files may also be generated containing cross-reference
-information on each symbol used.
+information on each symbol used.
 
-The manual is available in the Doc directory,
+The manual is available in the Doc/Language directory,
 z80asm (SLR Systems).pdf
 
 A run through of using the assembler is available at
diff --git a/Source/Images/d_zpm3/u0/ROMWBW.TXT b/Source/Images/d_zpm3/ReadMe.txt
similarity index 100%
rename from Source/Images/d_zpm3/u0/ROMWBW.TXT
rename to Source/Images/d_zpm3/ReadMe.txt
diff --git a/Source/Images/d_zpm3/u0/HELP.HLP b/Source/Images/d_zpm3/u0/HELP.HLP
deleted file mode 100644
index 428c767a..00000000
Binary files a/Source/Images/d_zpm3/u0/HELP.HLP and /dev/null differ
diff --git a/Source/Images/d_zpm3/u10/ALIAS.HLP b/Source/Images/d_zpm3/u10/ALIAS.HLP
deleted file mode 100644
index c255ce8e..00000000
--- a/Source/Images/d_zpm3/u10/ALIAS.HLP
+++ /dev/null
@@ -1,167 +0,0 @@
-;
-
-                            ALIA� 1.5
-
-                    The ZCPR3 ALIAS Facility
-
-                      A - 
The ALIAS Command
-
-                       E - 
ALIAS Examples
-
-                 S - 
Summary of ALIAS Variables
-
-:A
-
-
Command:  ALIAS
-
-                 
Syntax:�  ALIA� [[dir:]cmndname]
-
-
Function:
-
-     Th� ALIA� facilit� i� th� scrip� expansio� utilit� o� ZCPR3�  �
-A� �Alia� �i� �� �CO� fil� create� b� �th� �ALIA� �progra� �whic� �
-contain� �on� �o� mor� command� (separate� b� semicolons� �t� �b� �
-place� �i� th� Comman� Lin� Buffer�  Whe� th� Alia� �i� �invoked� �
-parameter� �fro� th� comman� lin� ar� implante� int� �th� �scrip� �
-containe� withi� th� Alias� an� th� resultin� ne� comman� lin� i� �
-place� int� th� Comman� Lin� Buffe� an� executed.
-
-
-
Options:
-     None
-
-
Comments:
-
-     ZCPR� �MUS� �b� implemente� wit� a� �Externa� �Comman� �Lin� �
-Buffe� i� orde� fo� ALIA� t� work.
-
-     Th� �scrip� o� th� interna� comman� lin� support� �paramete� �
-passin� �i� � manne� simila� t� ZE� an� SUB�  Th� �variable� �$n� �
-wher� �� �<� �� �<� 9� ma� b� place� int� �th� �script� �an� �th� �
-correspondin� �parameter� wil� b� substitute� fo� �th� �indicate� �
-variables�  Th� variabl� $� i� th� nam� o� th� Alia� itself�  Th� �
-variabl� $� i� th� entir� tai� o� th� comman� line.
-
-
-     Ne� �variables� $� an� $U� ar� available�  $� �expand� �int� �
-th� lette� o� th� dis� whic� wa� logge� i� a� th� tim� th� �Alia� �
-wa� �expande� (th� hom� disk)� an� $� expand� int� � �numbe� �(i� �
-ASCI� �chars� representin� th� use� are� whic� wa� logge� �i� �a� �
-th� tim� th� Alia� wa� expande� (th� hom� user).
-
-     Th� �ZCPR� Syste� fil� name� ar� availabl� t� th� �Alia� �a� �
-th� �variable� �$F� fo� NAME.TYP� $N� fo� NAM� an� $T� �fo� �TYP� �
-wher� �� <� � <� 4�  $F� refer� t� th� prototyp� SH.VA� �filenam� �
-whil� $F� refer� t� NAME.TY� o� Syste� Fil� 1� $N� refer� t� NAM� �
-o� Syste� Fil� 1� etc�  Not� tha� th� SETFIL� comman� i� use� �t� �
-defin� th� content� o� th� Syste� fil� names.
-
-     '$$� �expand� int� � singl� '$'�  I� fact� an� �unrecognize� �
-variabl� afte� � '$� wil� expan� t� itself�  
-
-
-     � �ne� �ALIA� �variabl� i� introduce� a� �Versio� �1.5� �th� �
-Pointer� � I� �wil� �retur� �th� content� �o� �an� �know� �memor� �
-locatio� (plu� a� optiona� offset)�  I� take� th� for�..
-              $.ADDR[+OFF][[.OFF[+OFF]][.OFF[+OFF]]
-
-     Fo� example� o� m� NZCO� system..
-
-$.�            (0001H�        D50�      Bio� War� boo� entry      
-$.1-�          (0001H�        D50�      Beginnin� o� Bios
-$.�            (0006H�        C70�      BDO� entry
-
-$.10�          (0109H�        E78�      Z3EN� address
-$.109.2�       (Z3ENV+22H�    E88�      Z3MS� buffe� address
-$.109.22+�     Z3MSG+�        E88�      Progra� Erro� Flag
-$.109.1�       (Z3ENV+18H�    E90�      Z3C� address
-$.109.18.�     (Z3CL�         E9x�      NXTCH� pointer
-
-
-                 
Summary of Alias Variables
-
-     $0  - Name of Alias
-     $n  - Parameter from Command Line (1 <= n <= 9)
-
-     $*  - Tail of Command Line (everything after the verb)
-
-     $D  - Curren� Driv� Letter
-     $U  - Curren� Use� Number
-
-     $F� � Prototyp� SH.VA� Shel� Variabl� File
-     $Fn - FILENAME.TYP of System File n (1 <= n <= 4)
-     $Nn - FILENAME of System File n
-     $T� � TY� o� Syste� Fil� n
-
-     $.add� � Ne� Pointe� variable
-
-     $$  - The character '$'
-
-
-
-
-
Error Messages:�  (onl� one)
-
-     "Ovfl� �mean� �tha� �eithe� � particula� �comman� �tai� �ha� �
-expande� �beyon� �12� character� an� woul� overflo� TBUF� �i� �i� �
-wer� �ru� �o� �th� �expande� comman� �lines� �combine� �wit� �th� �
-remainde� o� th� content� o� th� comman� lin� buffer� i� to� lon� �
-t� fi� i� th� comman� lin� buffer.
-
-:S
-
-                 
Summary of Alias Variables
-
-     $0  - Name of Alias
-     $n  - Parameter from Command Line (1 <= n <= 9)
-
-     $*  - Tail of Command Line (everything after the verb)
-
-     $D  - Home Disk
-     $U  - Home User
-
-     $F� � SH.VA� prototyp� Shel� Variabl� filename
-     $Fn - FILENAME.TYP of System File n (1 <= n <= 4)
-     $Nn - FILENAME of System File n
-     $T� � TY� o� Syste� Fil� n
-
-     $.add� � Ne� Pointe� variable
-
-     $$  - The character '$'
-
-:E
-
-                    
Examples of Aliases
-
-Case 1:
-
-     Th� use� i� constantl� issuin� th� followin� command� i� th� �
-orde� indicated:
-
-          ASM myfile.BBZ
-          LOAD myfile
-
-     He can generalize it with the following Alias script:
-
-          ASM $1.BBZ;LOAD $1
-
-     If this Alias is named MYASM.COM, then typing
-
-"MYASM test" will be equivalent to "ASM test.BBZ;LOAD test"
-
-Case 2:
-
-     Sam� a� Cas� � excep� t� th� Curren� Drive� no� �necessaril� �
-driv� B:
-
-          AS� $1.$D$DZ;LOA� $1
-
-Cas� 3:
-
-     Imagin� �yo� hav� change� disk� i� th� driv� � an� yo� �wan� �
-t� displa� it� director� an� spac� available�  Yo� woul� normall� �
-execut� ^� t� war� boot� the� mayb� XDI� C� fo� th� display� � A� �
-alia� ca� reduc� thi� t� � singl� characte� command� X.
-
-          JUM� 0;XDI� C:
-
\ No newline at end of file
diff --git a/Source/Images/d_zpm3/u15/alias.com b/Source/Images/d_zpm3/u15/alias.com
deleted file mode 100644
index bdd1e667..00000000
Binary files a/Source/Images/d_zpm3/u15/alias.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/copy.com b/Source/Images/d_zpm3/u15/copy.com
deleted file mode 100644
index 606c81a5..00000000
Binary files a/Source/Images/d_zpm3/u15/copy.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/date.com b/Source/Images/d_zpm3/u15/date.com
deleted file mode 100644
index 67a84b2d..00000000
Binary files a/Source/Images/d_zpm3/u15/date.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/device.com b/Source/Images/d_zpm3/u15/device.com
deleted file mode 100644
index 78075a3f..00000000
Binary files a/Source/Images/d_zpm3/u15/device.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/dir.com b/Source/Images/d_zpm3/u15/dir.com
deleted file mode 100644
index 16ead13b..00000000
Binary files a/Source/Images/d_zpm3/u15/dir.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/dump.com b/Source/Images/d_zpm3/u15/dump.com
deleted file mode 100644
index 97c10c03..00000000
Binary files a/Source/Images/d_zpm3/u15/dump.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/ed.com b/Source/Images/d_zpm3/u15/ed.com
deleted file mode 100644
index 203eafd7..00000000
Binary files a/Source/Images/d_zpm3/u15/ed.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/editndr.com b/Source/Images/d_zpm3/u15/editndr.com
deleted file mode 100644
index 149cb98c..00000000
Binary files a/Source/Images/d_zpm3/u15/editndr.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/erase.com b/Source/Images/d_zpm3/u15/erase.com
deleted file mode 100644
index cdc3ea60..00000000
Binary files a/Source/Images/d_zpm3/u15/erase.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/gencom.com b/Source/Images/d_zpm3/u15/gencom.com
deleted file mode 100644
index d0816425..00000000
Binary files a/Source/Images/d_zpm3/u15/gencom.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/get.com b/Source/Images/d_zpm3/u15/get.com
deleted file mode 100644
index 7f12456e..00000000
Binary files a/Source/Images/d_zpm3/u15/get.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/help.com b/Source/Images/d_zpm3/u15/help.com
deleted file mode 100644
index 3a4d4394..00000000
Binary files a/Source/Images/d_zpm3/u15/help.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/hexcom.com b/Source/Images/d_zpm3/u15/hexcom.com
deleted file mode 100644
index e8eb54b4..00000000
Binary files a/Source/Images/d_zpm3/u15/hexcom.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/initdir.com b/Source/Images/d_zpm3/u15/initdir.com
deleted file mode 100644
index 03cce335..00000000
Binary files a/Source/Images/d_zpm3/u15/initdir.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/patch.com b/Source/Images/d_zpm3/u15/patch.com
deleted file mode 100644
index 548b266e..00000000
Binary files a/Source/Images/d_zpm3/u15/patch.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/pip.com b/Source/Images/d_zpm3/u15/pip.com
deleted file mode 100644
index e1321a2a..00000000
Binary files a/Source/Images/d_zpm3/u15/pip.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/put.com b/Source/Images/d_zpm3/u15/put.com
deleted file mode 100644
index c9d35243..00000000
Binary files a/Source/Images/d_zpm3/u15/put.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/rename.com b/Source/Images/d_zpm3/u15/rename.com
deleted file mode 100644
index 8582175f..00000000
Binary files a/Source/Images/d_zpm3/u15/rename.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/salias.com b/Source/Images/d_zpm3/u15/salias.com
deleted file mode 100644
index b9f3562f..00000000
Binary files a/Source/Images/d_zpm3/u15/salias.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/save.com b/Source/Images/d_zpm3/u15/save.com
deleted file mode 100644
index 03ceb989..00000000
Binary files a/Source/Images/d_zpm3/u15/save.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/savendr.com b/Source/Images/d_zpm3/u15/savendr.com
deleted file mode 100644
index bf8d1125..00000000
Binary files a/Source/Images/d_zpm3/u15/savendr.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/sdz.com b/Source/Images/d_zpm3/u15/sdz.com
deleted file mode 100644
index 46f81fdc..00000000
Binary files a/Source/Images/d_zpm3/u15/sdz.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/set.com b/Source/Images/d_zpm3/u15/set.com
deleted file mode 100644
index e4c374dc..00000000
Binary files a/Source/Images/d_zpm3/u15/set.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/setdef.com b/Source/Images/d_zpm3/u15/setdef.com
deleted file mode 100644
index 005ac7ad..00000000
Binary files a/Source/Images/d_zpm3/u15/setdef.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/show.com b/Source/Images/d_zpm3/u15/show.com
deleted file mode 100644
index 5f2458ec..00000000
Binary files a/Source/Images/d_zpm3/u15/show.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/submit.com b/Source/Images/d_zpm3/u15/submit.com
deleted file mode 100644
index e0473c7c..00000000
Binary files a/Source/Images/d_zpm3/u15/submit.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/type.com b/Source/Images/d_zpm3/u15/type.com
deleted file mode 100644
index 17e695f2..00000000
Binary files a/Source/Images/d_zpm3/u15/type.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/zcnfg.com b/Source/Images/d_zpm3/u15/zcnfg.com
deleted file mode 100644
index ae423dc5..00000000
Binary files a/Source/Images/d_zpm3/u15/zcnfg.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/zex.com b/Source/Images/d_zpm3/u15/zex.com
deleted file mode 100644
index cd46405d..00000000
Binary files a/Source/Images/d_zpm3/u15/zex.com and /dev/null differ
diff --git a/Source/Images/d_zpm3/u15/zsid.com b/Source/Images/d_zpm3/u15/zsid.com
deleted file mode 100644
index 686b3775..00000000
Binary files a/Source/Images/d_zpm3/u15/zsid.com and /dev/null differ
diff --git a/Source/Images/d_zsdos/ReadMe.txt b/Source/Images/d_zsdos/ReadMe.txt
index 53cfd778..02be339b 100644
--- a/Source/Images/d_zsdos/ReadMe.txt
+++ b/Source/Images/d_zsdos/ReadMe.txt
@@ -15,7 +15,7 @@ ZSDOS is a replacement for the BDOS portion of the CP/M 2.2 operating
 system.  Since it does not include it's own command processor, the
 the ZCPR D&J Command Processor has been included.
 
-The primary documentation for ZSDOS and ZCPR 1 are contained in the Doc
+The primary documentation for ZSDOS and ZCPR 1 are contained in the Doc/CPM
 directory of the RomWBW distribution.  The specific files are "ZSDOS
 Manual.pdf", "ZCPR Manual.pdf", and "ZCPR-DJ.doc".  This document is a
 supplement to the primary documentation.
@@ -141,7 +141,7 @@ distribution as possible.
 == ZSDOS 1.1 Files ==
 
 The following files came from the official ZSDOS distribution.  These
-are generally documented in the "ZSDOS Manual.pdf" document in the Doc
+are generally documented in the "ZSDOS Manual.pdf" document in the Doc/CPM
 directory of the RomWBW distribution.  Note that some of the files
 included in the ZSDOS distribution are not listed below because they
 have been superseded by more recent versions listed in other sections
@@ -192,7 +192,7 @@ The following files have been included from CP/M 2.2.  These files
 provide various functionality that is not really available from the
 ZSDOS applications themselves.  For example, the CP/M 2.2 application
 called STAT is useful for modifying the IOBYTE.  Most of these
-applications are documented in the "CPM Manual.pdf" document in the Doc
+applications are documented in the "CPM Manual.pdf" document in the Doc/CPM
 directory of the RomWBW distribution.
 
 ASM.COM - DRI 8080 assembler producing Intel hex files
@@ -275,7 +275,7 @@ LBREXT.COM - Extract file from .LBR libraries
 LBREXT36.CFG - ZCNFG configuration file for LBREXT
 ZXD.COM - Enhanced directory lister w/ date/time stamp support
 ZXD.CFG - ZCNFG configuration file for ZXD
-BBCBASIC.COM - BBC BASIC CP/M Version 3.00 by R.T.Russell
+BBCBASIC.COM - BBC BASIC CP/M Version by R.T.Russell
 BBCBASIC.TXT - Help file for BBC BASIC
 GENHEX.COM - Generates an Intel Hex file from the input file
 LS.COM - An alternative file listing to DIR
@@ -304,4 +304,4 @@ in this user area for more information.
 N.B., at a minimum, some of the files in this user area must be copied
 to user area 0 for CP/NET to work properly.
 
--- WBW 3:20 PM 8/27/2021
\ No newline at end of file
+-- WBW 3:20 PM 8/27/2021
diff --git a/Source/ZSDOS/Distribution/-README.0 b/Source/Images/d_zsdos/u0/-README.0
similarity index 100%
rename from Source/ZSDOS/Distribution/-README.0
rename to Source/Images/d_zsdos/u0/-README.0
diff --git a/Source/Images/d_zsdos/u0/COPY.CFG b/Source/Images/d_zsdos/u0/COPY.CFG
deleted file mode 100644
index e55fcebf..00000000
Binary files a/Source/Images/d_zsdos/u0/COPY.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/LICENSE.TXT b/Source/Images/d_zsdos/u0/LICENSE.TXT
similarity index 100%
rename from Source/ZSDOS/Distribution/LICENSE.TXT
rename to Source/Images/d_zsdos/u0/LICENSE.TXT
diff --git a/Source/ZSDOS/Distribution/README.1ST b/Source/Images/d_zsdos/u0/README.1ST
similarity index 100%
rename from Source/ZSDOS/Distribution/README.1ST
rename to Source/Images/d_zsdos/u0/README.1ST
diff --git a/Source/Images/d_zsdos/u0/ZCNFG24.CFG b/Source/Images/d_zsdos/u0/ZCNFG24.CFG
deleted file mode 100644
index 1bfe49bf..00000000
Binary files a/Source/Images/d_zsdos/u0/ZCNFG24.CFG and /dev/null differ
diff --git a/Source/Images/fd_aztecc.txt b/Source/Images/fd_aztecc.txt
new file mode 100644
index 00000000..7192617c
--- /dev/null
+++ b/Source/Images/fd_aztecc.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_aztecc/ReadMe.txt 0:
diff --git a/Source/Images/fd_bascomp.txt b/Source/Images/fd_bascomp.txt
new file mode 100644
index 00000000..950aa805
--- /dev/null
+++ b/Source/Images/fd_bascomp.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_bascomp/ReadMe.txt 0:
diff --git a/Source/Images/fd_bp.txt b/Source/Images/fd_bp.txt
index 0fbfb8d0..dad5bc77 100644
--- a/Source/Images/fd_bp.txt
+++ b/Source/Images/fd_bp.txt
@@ -11,7 +11,10 @@
 #
 #../../Binary/Apps/*.com 15:
 ../../Binary/Apps/assign.com 15:
+#../../Binary/Apps/bbcbasic.com 15:
+#../../Binary/Apps/bbcbasic.txt 15:
 ../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
 ../../Binary/Apps/fat.com 15:
 ../../Binary/Apps/fdu.com 15:
 ../../Binary/Apps/fdu.doc 15:
@@ -36,18 +39,13 @@
 ../../Binary/Apps/zmconfig.ovr 15:
 ../../Binary/Apps/zmd.com 15:
 ../../Binary/Apps/vgmplay.com 15:
-
-# Add Tune sample files
-#
-../../Binary/Apps/Tunes/*.pt? 3:
-../../Binary/Apps/Tunes/*.mym 3:
-../../Binary/Apps/Tunes/*.vgm 3:
 #
 # Add Common Applications
 #
-Common/All/*.* 15:
+Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
 Common/CPM22/*.* 15:
-#Common/Z/u10/*.* 10:
 Common/Z/u14/*.* 14:
 Common/Z/u15/*.* 15:
 Common/Z3/u10/*.* 10:
diff --git a/Source/Images/fd_cowgol.txt b/Source/Images/fd_cowgol.txt
new file mode 100644
index 00000000..d90c4bdd
--- /dev/null
+++ b/Source/Images/fd_cowgol.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_cowgol/ReadMe.txt 0:
diff --git a/Source/Images/fd_cpm22.txt b/Source/Images/fd_cpm22.txt
index e83c35b3..bd240422 100644
--- a/Source/Images/fd_cpm22.txt
+++ b/Source/Images/fd_cpm22.txt
@@ -8,6 +8,7 @@ d_cpm22/ReadMe.txt 0:
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -33,17 +34,13 @@ d_cpm22/ReadMe.txt 0:
 ../../Binary/Apps/zmd.com 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
-# Add Tune sample files
-#
-../../Binary/Apps/Tunes/*.pt? 3:
-../../Binary/Apps/Tunes/*.mym 3:
-../../Binary/Apps/Tunes/*.vgm 3:
-#
 # Add OS image
 #
 ../CPM22/cpm_wbw.sys 0:cpm.sys
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
diff --git a/Source/Images/fd_cpm3.txt b/Source/Images/fd_cpm3.txt
index d932c40f..9131bf5b 100644
--- a/Source/Images/fd_cpm3.txt
+++ b/Source/Images/fd_cpm3.txt
@@ -1,4 +1,8 @@
 #
+# Add the ReadMe document
+#
+d_cpm3/ReadMe.txt 0:
+#
 # Add files from CPM3 build
 #
 ../CPM3/cpmldr.com 0:
@@ -16,7 +20,6 @@
 ../CPM3/cpm3bnk.sys 0:
 ../CPM3/gencpm.dat 0:
 ../CPM3/cpm3.sys 0:
-../CPM3/readme.1st 0:
 ../CPM3/cpm3fix.pat 0:
 #
 # Add RomWBW utilities
@@ -24,6 +27,7 @@
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -51,5 +55,7 @@
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM3/*.* 0:
diff --git a/Source/Images/fd_fortran.txt b/Source/Images/fd_fortran.txt
new file mode 100644
index 00000000..2bda53c7
--- /dev/null
+++ b/Source/Images/fd_fortran.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_fortran/ReadMe.txt 0:
diff --git a/Source/Images/fd_games.txt b/Source/Images/fd_games.txt
new file mode 100644
index 00000000..f4495305
--- /dev/null
+++ b/Source/Images/fd_games.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_games/ReadMe.txt 0:
diff --git a/Source/Images/fd_hitechc.txt b/Source/Images/fd_hitechc.txt
new file mode 100644
index 00000000..b20cdc4a
--- /dev/null
+++ b/Source/Images/fd_hitechc.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_hitechc/ReadMe.txt 0:
diff --git a/Source/Images/fd_nzcom.txt b/Source/Images/fd_nzcom.txt
index 140cdd32..f80cc0d5 100644
--- a/Source/Images/fd_nzcom.txt
+++ b/Source/Images/fd_nzcom.txt
@@ -3,25 +3,28 @@
 #
 d_nzcom/ReadMe.txt 0:
 #
-# Include selected CP/M 2.2 files
+# Include CP/M 2.2 files
 #
-d_cpm22/u0/STAT.COM 0:
 d_cpm22/u0/SUBMIT.COM 0:
-d_cpm22/u0/XSUB.COM 0:
+d_cpm22/u0/*.* 15:
 #
 # Add RomWBW utilities
 #
-#../../Binary/Apps/*.com 0:
-../../Binary/Apps/assign.com 0:
-../../Binary/Apps/cpuspd.com 0:
-../../Binary/Apps/fat.com 0:
-../../Binary/Apps/fdu.com 0:
-../../Binary/Apps/rtc.com 0:
-../../Binary/Apps/syscopy.com 0:
-../../Binary/Apps/talk.com 0:
-../../Binary/Apps/htalk.com 0:
-../../Binary/Apps/timer.com 0:
-../../Binary/Apps/xm.com 0:
+#../../Binary/Apps/*.com 15:
+../../Binary/Apps/assign.com 15:
+../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/fat.com 15:
+../../Binary/Apps/fdu.com 15:
+#../../Binary/Apps/fdu.doc 15:
+#../../Binary/Apps/mode.com 15:
+../../Binary/Apps/rtc.com 15:
+#../../Binary/Apps/survey.com 15:
+../../Binary/Apps/syscopy.com 15:
+../../Binary/Apps/talk.com 15:
+../../Binary/Apps/htalk.com 15:
+../../Binary/Apps/timer.com 15:
+../../Binary/Apps/xm.com 15:
 #
 # Add OS images
 #
@@ -29,11 +32,12 @@ d_cpm22/u0/XSUB.COM 0:
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
-Common/CPM22/*.* 0:
-#Common/Z/u10/*.* 0:
-Common/Z/u14/*.* 0:
-Common/Z/u15/*.* 0:
-Common/Z3/u10/*.* 0:
-Common/Z3/u14/*.* 0:
-Common/Z3/u15/*.* 0:
+# Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
+Common/CPM22/*.* 15:
+Common/Z/u14/*.* 14:
+Common/Z/u15/*.* 15:
+Common/Z3/u10/*.* 10:
+Common/Z3/u14/*.* 14:
+Common/Z3/u15/*.* 15:
diff --git a/Source/Images/fd_qpm.txt b/Source/Images/fd_qpm.txt
index 6aeaae6a..067675a9 100644
--- a/Source/Images/fd_qpm.txt
+++ b/Source/Images/fd_qpm.txt
@@ -12,6 +12,7 @@ d_cpm22/u0/*.* 0:
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -37,17 +38,13 @@ d_cpm22/u0/*.* 0:
 ../../Binary/Apps/zmd.com 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
-# Add Tune sample files
-#
-../../Binary/Apps/Tunes/*.pt? 3:
-../../Binary/Apps/Tunes/*.mym 3:
-../../Binary/Apps/Tunes/*.vgm 3:
-#
 # Add OS image
 #
 ../QPM/qpm_wbw.sys 0:qpm.sys
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
diff --git a/Source/Images/fd_tpascal.txt b/Source/Images/fd_tpascal.txt
new file mode 100644
index 00000000..951e7dd4
--- /dev/null
+++ b/Source/Images/fd_tpascal.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_tpascal/ReadMe.txt 0:
diff --git a/Source/Images/fd_z3plus.txt b/Source/Images/fd_z3plus.txt
new file mode 100644
index 00000000..f8445693
--- /dev/null
+++ b/Source/Images/fd_z3plus.txt
@@ -0,0 +1,63 @@
+#
+# Add the ReadMe document
+#
+d_z3plus/ReadMe.txt 0:
+#
+# Add files from CPM3 build
+#
+../CPM3/cpmldr.com 0:
+../CPM3/cpmldr.sys 0:
+../CPM3/ccp.com 0:
+../CPM3/gencpm.com 0:
+../CPM3/genres.dat 0:
+../CPM3/genbnk.dat 0:
+../CPM3/bios3.spr 0:
+../CPM3/bnkbios3.spr 0:
+../CPM3/bdos3.spr 0:
+../CPM3/bnkbdos3.spr 0:
+../CPM3/resbdos3.spr 0:
+../CPM3/cpm3res.sys 0:
+../CPM3/cpm3bnk.sys 0:
+../CPM3/gencpm.dat 0:
+../CPM3/cpm3.sys 0:
+../CPM3/readme.1st 0:
+../CPM3/cpm3fix.pat 0:
+#
+# Include CP/M 3 files
+#
+d_cpm3/u0/*.COM 15:
+d_cpm3/u0/SUBMIT.COM 0:
+d_cpm3/u0/HELP.HLP 0:
+#
+# Add RomWBW utilities
+#
+../../Binary/Apps/assign.com 15:
+../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/fat.com 15:
+../../Binary/Apps/fdu.com 15:
+../../Binary/Apps/mode.com 15:
+../../Binary/Apps/rtc.com 15:
+../../Binary/Apps/survey.com 15:
+../../Binary/Apps/syscopy.com 15:
+../../Binary/Apps/sysgen.com 15:
+../../Binary/Apps/timer.com 15:
+../../Binary/Apps/xm.com 15:
+#
+# Add Shared NZCOM/Z3PLUS
+#
+Common/NZ3PLUS/u10/*.* 10:
+Common/NZ3PLUS/u14/*.* 14:
+Common/NZ3PLUS/u15/*.* 15:
+#
+# Add Common Applications
+#
+# Common/All/u10/*.* 10:
+# Common/All/u14/*.* 14:
+# Common/All/u15/*.* 15:
+Common/CPM3/*.* 15:
+Common/Z/u14/*.* 14:
+Common/Z/u15/*.* 15:
+# Common/Z3/u10/*.* 10:
+Common/Z3/u14/*.* 14:
+Common/Z3/u15/*.* 15:
diff --git a/Source/Images/fd_z80asm.txt b/Source/Images/fd_z80asm.txt
new file mode 100644
index 00000000..9a42beca
--- /dev/null
+++ b/Source/Images/fd_z80asm.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_z80asm/ReadMe.txt 0:
diff --git a/Source/Images/fd_zpm3.txt b/Source/Images/fd_zpm3.txt
index efc30026..f91170d8 100644
--- a/Source/Images/fd_zpm3.txt
+++ b/Source/Images/fd_zpm3.txt
@@ -1,10 +1,15 @@
 #
+# Add the ReadMe document
+#
+d_zpm3/ReadMe.txt 0:
+#
 # Add files from ZPM3 build
 #
 ../ZPM3/zpmldr.com 0:
 ../ZPM3/zpmldr.sys 0:
-../CPM3/cpmldr.com 0:
-../CPM3/cpmldr.sys 0:
+# Failsafe CPM3 Loaders removed for now
+#../CPM3/cpmldr.com 0:
+#../CPM3/cpmldr.sys 0:
 ../ZPM3/autotog.com 15:
 ../ZPM3/clrhist.com 15:
 ../ZPM3/setz3.com 15:
@@ -18,11 +23,17 @@
 ../ZPM3/bnkbdos3.spr 0:
 ../ZPM3/resbdos3.spr 0:
 #
+# Include CP/M 3 files
+#
+d_cpm3/u0/*.COM 15:
+d_cpm3/u0/HELP.HLP 0:
+#
 # Add RomWBW utilities
 #
 #../../Binary/Apps/*.com 15:
 ../../Binary/Apps/assign.com 15:
 ../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
 ../../Binary/Apps/fat.com 15:
 ../../Binary/Apps/fdu.com 15:
 #../../Binary/Apps/fdu.doc 15:
@@ -31,7 +42,7 @@
 ../../Binary/Apps/survey.com 15:
 ../../Binary/Apps/syscopy.com 15:
 ../../Binary/Apps/sysgen.com 15:
-../../Binary/Apps/talk.com 15:
+#../../Binary/Apps/talk.com 15:
 #../../Binary/Apps/htalk.com 15:
 #../../Binary/Apps/tbasic.com 15:
 ../../Binary/Apps/timer.com 15:
@@ -40,9 +51,10 @@
 #
 # Add Common Applications
 #
-Common/All/*.* 15:
+# Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
 Common/CPM3/*.* 15:
-#Common/Z/u10/*.* 10:
 Common/Z/u14/*.* 14:
 Common/Z/u15/*.* 15:
 Common/Z3/u10/*.* 10:
diff --git a/Source/Images/fd_zsdos.txt b/Source/Images/fd_zsdos.txt
index 42af49e3..c673821d 100644
--- a/Source/Images/fd_zsdos.txt
+++ b/Source/Images/fd_zsdos.txt
@@ -3,24 +3,16 @@
 #
 d_zsdos/ReadMe.txt 0:
 #
-# Include selected CP/M 2.2 files
+# Include CP/M 2.2 files
 #
-d_cpm22/u0/ASM.COM 0:
-d_cpm22/u0/LIB.COM 0:
-d_cpm22/u0/LINK.COM 0:
-d_cpm22/u0/LOAD.COM 0:
-d_cpm22/u0/MAC.COM 0:
-#d_cpm22/u0/PIP.COM 0: ???
-d_cpm22/u0/RMAC.COM 0:
-d_cpm22/u0/STAT.COM 0:
-d_cpm22/u0/SUBMIT.COM 0:
-d_cpm22/u0/XSUB.COM 0:
+d_cpm22/u0/*.* 0:
 #
 # Add RomWBW utilities
 #
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -46,20 +38,15 @@ d_cpm22/u0/XSUB.COM 0:
 ../../Binary/Apps/zmd.com 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
-# Add Tune sample files
-#
-../../Binary/Apps/Tunes/*.pt? 3:
-#../../Binary/Apps/Tunes/*.mym 3:
-../../Binary/Apps/Tunes/*.vgm 3:
-#
 # Add OS image
 #
 ../ZSDOS/zsys_wbw.sys 0:zsys.sys
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
-#Common/Z/u10/*.* 0:
 Common/Z/u14/*.* 0:
 Common/Z/u15/*.* 0:
diff --git a/Source/Images/hd_aztecc.txt b/Source/Images/hd_aztecc.txt
new file mode 100644
index 00000000..7192617c
--- /dev/null
+++ b/Source/Images/hd_aztecc.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_aztecc/ReadMe.txt 0:
diff --git a/Source/Images/hd_bascomp.txt b/Source/Images/hd_bascomp.txt
new file mode 100644
index 00000000..950aa805
--- /dev/null
+++ b/Source/Images/hd_bascomp.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_bascomp/ReadMe.txt 0:
diff --git a/Source/Images/hd_bp.txt b/Source/Images/hd_bp.txt
index e551906a..0db9f373 100644
--- a/Source/Images/hd_bp.txt
+++ b/Source/Images/hd_bp.txt
@@ -11,14 +11,20 @@
 #
 #../../Binary/Apps/*.com 15:
 ../../Binary/Apps/assign.com 15:
+../../Binary/Apps/bbcbasic.com 15:
+../../Binary/Apps/bbcbasic.txt 10:
 ../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/copysl.com 15:
+../../Binary/Apps/copysl.doc 10:
 ../../Binary/Apps/fat.com 15:
 ../../Binary/Apps/fdu.com 15:
-../../Binary/Apps/fdu.doc 15:
+../../Binary/Apps/fdu.doc 10:
 ../../Binary/Apps/format.com 15:
 ../../Binary/Apps/mode.com 15:
 ../../Binary/Apps/rtc.com 15:
 ../../Binary/Apps/survey.com 15:
+../../Binary/Apps/sysconfig.com 15:
 ../../Binary/Apps/syscopy.com 15:
 ../../Binary/Apps/sysgen.com 15:
 ../../Binary/Apps/talk.com 15:
@@ -29,7 +35,7 @@
 ../../Binary/Apps/xm.com 15:
 ../../Binary/Apps/zmp.com 15:
 ../../Binary/Apps/zmp.hlp 15:
-../../Binary/Apps/zmp.doc 15:
+../../Binary/Apps/zmp.doc 10:
 ../../Binary/Apps/zmxfer.ovr 15:
 ../../Binary/Apps/zmterm.ovr 15:
 ../../Binary/Apps/zminit.ovr 15:
@@ -38,7 +44,8 @@
 ../../Binary/Apps/vgmplay.com 15:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -48,13 +55,13 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 15:
+Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
 Common/CPM22/*.* 15:
-#Common/Z/u10/*.* 10:
 Common/Z/u14/*.* 14:
 Common/Z/u15/*.* 15:
 Common/Z3/u10/*.* 10:
 Common/Z3/u14/*.* 14:
 Common/Z3/u15/*.* 15:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 15:
diff --git a/Source/Images/hd_cowgol.txt b/Source/Images/hd_cowgol.txt
new file mode 100644
index 00000000..d90c4bdd
--- /dev/null
+++ b/Source/Images/hd_cowgol.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_cowgol/ReadMe.txt 0:
diff --git a/Source/Images/hd_cpm22.txt b/Source/Images/hd_cpm22.txt
index 22f43a66..cacbf227 100644
--- a/Source/Images/hd_cpm22.txt
+++ b/Source/Images/hd_cpm22.txt
@@ -7,7 +7,12 @@ d_cpm22/ReadMe.txt 0:
 #
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
+../../Binary/Apps/bbcbasic.com 0:
+../../Binary/Apps/bbcbasic.txt 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
+../../Binary/Apps/copysl.com 0:
+../../Binary/Apps/copysl.doc 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -15,6 +20,7 @@ d_cpm22/ReadMe.txt 0:
 ../../Binary/Apps/mode.com 0:
 ../../Binary/Apps/rtc.com 0:
 ../../Binary/Apps/survey.com 0:
+../../Binary/Apps/sysconfig.com 0:
 ../../Binary/Apps/syscopy.com 0:
 ../../Binary/Apps/sysgen.com 0:
 ../../Binary/Apps/talk.com 0:
@@ -34,7 +40,8 @@ d_cpm22/ReadMe.txt 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -53,7 +60,8 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Images/hd_cpm3.txt b/Source/Images/hd_cpm3.txt
index 60baad02..005cf6b4 100644
--- a/Source/Images/hd_cpm3.txt
+++ b/Source/Images/hd_cpm3.txt
@@ -1,4 +1,8 @@
 #
+# Add the ReadMe document
+#
+d_cpm3/ReadMe.txt 0:
+#
 # Add files from CPM3 build
 #
 ../CPM3/cpmldr.com 0:
@@ -16,14 +20,18 @@
 ../CPM3/cpm3bnk.sys 0:
 ../CPM3/gencpm.dat 0:
 ../CPM3/cpm3.sys 0:
-../CPM3/readme.1st 0:
 ../CPM3/cpm3fix.pat 0:
 #
 # Add RomWBW utilities
 #
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
+../../Binary/Apps/bbcbasic.com 0:
+../../Binary/Apps/bbcbasic.txt 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
+../../Binary/Apps/copysl.com 0:
+../../Binary/Apps/copysl.doc 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -31,6 +39,7 @@
 ../../Binary/Apps/mode.com 0:
 ../../Binary/Apps/rtc.com 0:
 ../../Binary/Apps/survey.com 0:
+../../Binary/Apps/sysconfig.com 0:
 ../../Binary/Apps/syscopy.com 0:
 #../../Binary/Apps/sysgen.com 0:
 #../../Binary/Apps/talk.com 0:
@@ -50,7 +59,8 @@
 ../../Binary/Apps/vgmplay.com 0:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -65,7 +75,8 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM3/*.* 0:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Images/hd_fortran.txt b/Source/Images/hd_fortran.txt
new file mode 100644
index 00000000..2bda53c7
--- /dev/null
+++ b/Source/Images/hd_fortran.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_fortran/ReadMe.txt 0:
diff --git a/Source/Images/hd_games.txt b/Source/Images/hd_games.txt
new file mode 100644
index 00000000..f4495305
--- /dev/null
+++ b/Source/Images/hd_games.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_games/ReadMe.txt 0:
diff --git a/Source/Images/hd_hitechc.txt b/Source/Images/hd_hitechc.txt
new file mode 100644
index 00000000..b20cdc4a
--- /dev/null
+++ b/Source/Images/hd_hitechc.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_hitechc/ReadMe.txt 0:
diff --git a/Source/Images/hd_msxroms1.txt b/Source/Images/hd_msxroms1.txt
new file mode 100644
index 00000000..f0966942
--- /dev/null
+++ b/Source/Images/hd_msxroms1.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_msxroms1/ReadMe.txt 0:
diff --git a/Source/Images/hd_msxroms2.txt b/Source/Images/hd_msxroms2.txt
new file mode 100644
index 00000000..8bbd751c
--- /dev/null
+++ b/Source/Images/hd_msxroms2.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_msxroms2/ReadMe.txt 0:
diff --git a/Source/Images/hd_nzcom.txt b/Source/Images/hd_nzcom.txt
index 6305b6ca..53d826c4 100644
--- a/Source/Images/hd_nzcom.txt
+++ b/Source/Images/hd_nzcom.txt
@@ -3,55 +3,60 @@
 #
 d_nzcom/ReadMe.txt 0:
 #
-# Include selected CP/M 2.2 files
-#
-d_cpm22/u0/ASM.COM 0:
-d_cpm22/u0/LIB.COM 0:
-d_cpm22/u0/LINK.COM 0:
-d_cpm22/u0/LOAD.COM 0:
-d_cpm22/u0/MAC.COM 0:
-#d_cpm22/u0/PIP.COM 0: ???
-d_cpm22/u0/RMAC.COM 0:
-d_cpm22/u0/STAT.COM 0:
+# Include CP/M 2.2 files
+#
 d_cpm22/u0/SUBMIT.COM 0:
-d_cpm22/u0/XSUB.COM 0:
+d_cpm22/u0/*.* 15:
 #
 # Include ZSDOS files
 #
-d_zsdos/u0/*.* 0:
+d_zsdos/u0/*.COM 15:
+d_zsdos/u0/*.CFG 14:
+d_zsdos/u0/*.UPD 10:
+d_zsdos/u0/*.DOC 10:
+d_zsdos/u0/*.FOR 10:
+d_zsdos/u0/*.TXT 10:
+d_zsdos/u0/*.DAT 15:
 #
 # Add RomWBW utilities
 #
-#../../Binary/Apps/*.com 0:
-../../Binary/Apps/assign.com 0:
-../../Binary/Apps/cpuspd.com 0:
-../../Binary/Apps/fat.com 0:
-../../Binary/Apps/fdu.com 0:
-../../Binary/Apps/fdu.doc 0:
-../../Binary/Apps/format.com 0:
-../../Binary/Apps/mode.com 0:
-../../Binary/Apps/rtc.com 0:
-../../Binary/Apps/survey.com 0:
-../../Binary/Apps/syscopy.com 0:
-../../Binary/Apps/sysgen.com 0:
-../../Binary/Apps/talk.com 0:
-../../Binary/Apps/htalk.com 0:
-../../Binary/Apps/tbasic.com 0:
-../../Binary/Apps/timer.com 0:
-../../Binary/Apps/tune.com 0:
-../../Binary/Apps/xm.com 0:
-../../Binary/Apps/zmp.com 0:
-../../Binary/Apps/zmp.hlp 0:
-../../Binary/Apps/zmp.doc 0:
-../../Binary/Apps/zmxfer.ovr 0:
-../../Binary/Apps/zmterm.ovr 0:
-../../Binary/Apps/zminit.ovr 0:
-../../Binary/Apps/zmconfig.ovr 0:
-../../Binary/Apps/zmd.com 0:
-../../Binary/Apps/vgmplay.com 0:
+#../../Binary/Apps/*.com 15:
+../../Binary/Apps/assign.com 15:
+../../Binary/Apps/bbcbasic.com 15:
+../../Binary/Apps/bbcbasic.txt 10:
+../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/copysl.com 15:
+../../Binary/Apps/copysl.doc 10:
+../../Binary/Apps/fat.com 15:
+../../Binary/Apps/fdu.com 15:
+../../Binary/Apps/fdu.doc 10:
+../../Binary/Apps/format.com 15:
+../../Binary/Apps/mode.com 15:
+../../Binary/Apps/rtc.com 15:
+../../Binary/Apps/survey.com 15:
+../../Binary/Apps/sysconfig.com 15:
+../../Binary/Apps/syscopy.com 15:
+../../Binary/Apps/sysgen.com 15:
+../../Binary/Apps/talk.com 15:
+../../Binary/Apps/htalk.com 15:
+../../Binary/Apps/tbasic.com 15:
+../../Binary/Apps/timer.com 15:
+../../Binary/Apps/tune.com 15:
+../../Binary/Apps/xm.com 15:
+../../Binary/Apps/zmp.com 15:
+../../Binary/Apps/zmp.hlp 15:
+../../Binary/Apps/zmp.doc 10:
+../../Binary/Apps/zmxfer.ovr 15:
+../../Binary/Apps/zmterm.ovr 15:
+../../Binary/Apps/zminit.ovr 15:
+../../Binary/Apps/zmconfig.ovr 15:
+../../Binary/Apps/zmd.com 15:
+../../Binary/Apps/vgmplay.com 15:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -63,15 +68,21 @@ Test/*.* 2:
 #
 ../ZSDOS/zsys_wbw.sys 0:zsys.sys
 #
+# Add Shared NZCOM/Z3PLUS
+#
+Common/NZ3PLUS/u10/*.* 10:
+Common/NZ3PLUS/u14/*.* 14:
+Common/NZ3PLUS/u15/*.* 15:
+#
 # Add Common Applications
 #
-Common/All/*.* 0:
-Common/CPM22/*.* 0:
-#Common/Z/u10/*.* 0:
-Common/Z/u14/*.* 0:
-Common/Z/u15/*.* 0:
-Common/Z3/u10/*.* 0:
-Common/Z3/u14/*.* 0:
-Common/Z3/u15/*.* 0:
+Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
+Common/CPM22/*.* 15:
+Common/Z/u14/*.* 14:
+Common/Z/u15/*.* 15:
+Common/Z3/u10/*.* 10:
+Common/Z3/u14/*.* 14:
+Common/Z3/u15/*.* 15:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Images/hd_qpm.txt b/Source/Images/hd_qpm.txt
index 90fbce7c..436941b4 100644
--- a/Source/Images/hd_qpm.txt
+++ b/Source/Images/hd_qpm.txt
@@ -11,7 +11,12 @@ d_cpm22/u0/*.* 0:
 #
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
+../../Binary/Apps/bbcbasic.com 0:
+../../Binary/Apps/bbcbasic.txt 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
+../../Binary/Apps/copysl.com 0:
+../../Binary/Apps/copysl.doc 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -19,6 +24,7 @@ d_cpm22/u0/*.* 0:
 ../../Binary/Apps/mode.com 0:
 ../../Binary/Apps/rtc.com 0:
 ../../Binary/Apps/survey.com 0:
+../../Binary/Apps/sysconfig.com 0:
 ../../Binary/Apps/syscopy.com 0:
 ../../Binary/Apps/sysgen.com 0:
 ../../Binary/Apps/talk.com 0:
@@ -38,7 +44,8 @@ d_cpm22/u0/*.* 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -52,7 +59,8 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Images/hd_tpascal.txt b/Source/Images/hd_tpascal.txt
new file mode 100644
index 00000000..951e7dd4
--- /dev/null
+++ b/Source/Images/hd_tpascal.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_tpascal/ReadMe.txt 0:
diff --git a/Source/Images/hd_z3plus.txt b/Source/Images/hd_z3plus.txt
new file mode 100644
index 00000000..879219e2
--- /dev/null
+++ b/Source/Images/hd_z3plus.txt
@@ -0,0 +1,100 @@
+#
+# Add the ReadMe document
+#
+d_z3plus/ReadMe.txt 0:
+#
+# Add files from CPM3 build
+#
+../CPM3/cpmldr.com 0:
+../CPM3/cpmldr.sys 0:
+../CPM3/ccp.com 0:
+../CPM3/gencpm.com 0:
+../CPM3/genres.dat 0:
+../CPM3/genbnk.dat 0:
+../CPM3/bios3.spr 0:
+../CPM3/bnkbios3.spr 0:
+../CPM3/bdos3.spr 0:
+../CPM3/bnkbdos3.spr 0:
+../CPM3/resbdos3.spr 0:
+../CPM3/cpm3res.sys 0:
+../CPM3/cpm3bnk.sys 0:
+../CPM3/gencpm.dat 0:
+../CPM3/cpm3.sys 0:
+../CPM3/readme.1st 0:
+../CPM3/cpm3fix.pat 0:
+#
+# Include CP/M 3 files
+#
+d_cpm3/u0/*.COM 15:
+d_cpm3/u0/SUBMIT.COM 0:
+d_cpm3/u0/HELP.HLP 0:
+#
+# Add RomWBW utilities
+#
+#../../Binary/Apps/*.com 15:
+../../Binary/Apps/assign.com 15:
+../../Binary/Apps/bbcbasic.com 15:
+../../Binary/Apps/bbcbasic.txt 10:
+../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/copysl.com 15:
+../../Binary/Apps/copysl.doc 10:
+../../Binary/Apps/fat.com 15:
+../../Binary/Apps/fdu.com 15:
+../../Binary/Apps/fdu.doc 10:
+../../Binary/Apps/format.com 15:
+../../Binary/Apps/mode.com 15:
+../../Binary/Apps/rtc.com 15:
+../../Binary/Apps/survey.com 15:
+../../Binary/Apps/sysconfig.com 15:
+../../Binary/Apps/syscopy.com 15:
+../../Binary/Apps/sysgen.com 15:
+../../Binary/Apps/talk.com 15:
+../../Binary/Apps/htalk.com 15:
+../../Binary/Apps/tbasic.com 15:
+../../Binary/Apps/timer.com 15:
+../../Binary/Apps/tune.com 15:
+../../Binary/Apps/xm.com 15:
+../../Binary/Apps/zmp.com 15:
+../../Binary/Apps/zmp.hlp 15:
+../../Binary/Apps/zmp.doc 10:
+../../Binary/Apps/zmxfer.ovr 15:
+../../Binary/Apps/zmterm.ovr 15:
+../../Binary/Apps/zminit.ovr 15:
+../../Binary/Apps/zmconfig.ovr 15:
+../../Binary/Apps/zmd.com 15:
+../../Binary/Apps/vgmplay.com 15:
+#
+../../Binary/Apps/Test/*.com 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
+#
+# Add Tune sample files
+#
+../../Binary/Apps/Tunes/*.pt? 3:
+../../Binary/Apps/Tunes/*.mym 3:
+../../Binary/Apps/Tunes/*.vgm 3:
+#
+# Add CPNET client files
+#
+../../Binary/CPNET/cpn3*.lbr 4:
+../../Binary/CPNET/ReadMe.txt 4:
+#
+# Add Shared NZCOM/Z3PLUS
+#
+Common/NZ3PLUS/u10/*.* 10:
+Common/NZ3PLUS/u14/*.* 14:
+Common/NZ3PLUS/u15/*.* 15:
+#
+# Add Common Applications
+#
+Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
+Common/CPM3/*.* 15:
+Common/Z/u14/*.* 14:
+Common/Z/u15/*.* 15:
+Common/Z3/u10/*.* 10:
+Common/Z3/u14/*.* 14:
+Common/Z3/u15/*.* 15:
+Common/SIMH/*.* 13:
diff --git a/Source/Images/hd_z80asm.txt b/Source/Images/hd_z80asm.txt
new file mode 100644
index 00000000..9a42beca
--- /dev/null
+++ b/Source/Images/hd_z80asm.txt
@@ -0,0 +1,4 @@
+#
+# Add the ReadMe document
+#
+d_z80asm/ReadMe.txt 0:
diff --git a/Source/Images/hd_zpm3.txt b/Source/Images/hd_zpm3.txt
index 1417a6fc..28009fd0 100644
--- a/Source/Images/hd_zpm3.txt
+++ b/Source/Images/hd_zpm3.txt
@@ -1,10 +1,15 @@
 #
+# Add the ReadMe document
+#
+d_zpm3/ReadMe.txt 0:
+#
 # Add files from ZPM3 build
 #
 ../ZPM3/zpmldr.com 0:
 ../ZPM3/zpmldr.sys 0:
-../CPM3/cpmldr.com 0:
-../CPM3/cpmldr.sys 0:
+# Failsafe CPM3 Loaders removed for now
+#../CPM3/cpmldr.com 0:
+#../CPM3/cpmldr.sys 0:
 ../ZPM3/autotog.com 15:
 ../ZPM3/clrhist.com 15:
 ../ZPM3/setz3.com 15:
@@ -18,18 +23,29 @@
 ../ZPM3/bnkbdos3.spr 0:
 ../ZPM3/resbdos3.spr 0:
 #
+# Include CP/M 3 files
+#
+d_cpm3/u0/*.COM 15:
+d_cpm3/u0/HELP.HLP 0:
+#
 # Add RomWBW utilities
 #
 #../../Binary/Apps/*.com 15:
 ../../Binary/Apps/assign.com 15:
+../../Binary/Apps/bbcbasic.com 15:
+../../Binary/Apps/bbcbasic.txt 10:
 ../../Binary/Apps/cpuspd.com 15:
+../../Binary/Apps/reboot.com 15:
+../../Binary/Apps/copysl.com 15:
+../../Binary/Apps/copysl.doc 10:
 ../../Binary/Apps/fat.com 15:
 ../../Binary/Apps/fdu.com 15:
-../../Binary/Apps/fdu.doc 15:
+../../Binary/Apps/fdu.doc 10:
 ../../Binary/Apps/format.com 15:
 ../../Binary/Apps/mode.com 15:
 ../../Binary/Apps/rtc.com 15:
 ../../Binary/Apps/survey.com 15:
+../../Binary/Apps/sysconfig.com 15:
 ../../Binary/Apps/syscopy.com 15:
 ../../Binary/Apps/sysgen.com 15:
 ../../Binary/Apps/talk.com 15:
@@ -40,7 +56,7 @@
 ../../Binary/Apps/xm.com 15:
 ../../Binary/Apps/zmp.com 15:
 ../../Binary/Apps/zmp.hlp 15:
-../../Binary/Apps/zmp.doc 15:
+../../Binary/Apps/zmp.doc 10:
 ../../Binary/Apps/zmxfer.ovr 15:
 ../../Binary/Apps/zmterm.ovr 15:
 ../../Binary/Apps/zminit.ovr 15:
@@ -49,7 +65,8 @@
 ../../Binary/Apps/vgmplay.com 15:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -59,13 +76,13 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 15:
+Common/All/u10/*.* 10:
+Common/All/u14/*.* 14:
+Common/All/u15/*.* 15:
 Common/CPM3/*.* 15:
-#Common/Z/u10/*.* 10:
 Common/Z/u14/*.* 14:
 Common/Z/u15/*.* 15:
 Common/Z3/u10/*.* 10:
 Common/Z3/u14/*.* 14:
 Common/Z3/u15/*.* 15:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Images/hd_zsdos.txt b/Source/Images/hd_zsdos.txt
index 2a2ddea2..d2c389ea 100644
--- a/Source/Images/hd_zsdos.txt
+++ b/Source/Images/hd_zsdos.txt
@@ -3,24 +3,20 @@
 #
 d_zsdos/ReadMe.txt 0:
 #
-# Include selected CP/M 2.2 files
+# Include CP/M 2.2 files
 #
-d_cpm22/u0/ASM.COM 0:
-d_cpm22/u0/LIB.COM 0:
-d_cpm22/u0/LINK.COM 0:
-d_cpm22/u0/LOAD.COM 0:
-d_cpm22/u0/MAC.COM 0:
-#d_cpm22/u0/PIP.COM 0: ???
-d_cpm22/u0/RMAC.COM 0:
-d_cpm22/u0/STAT.COM 0:
-d_cpm22/u0/SUBMIT.COM 0:
-d_cpm22/u0/XSUB.COM 0:
+d_cpm22/u0/*.* 0:
 #
 # Add RomWBW utilities
 #
 #../../Binary/Apps/*.com 0:
 ../../Binary/Apps/assign.com 0:
+../../Binary/Apps/bbcbasic.com 0:
+../../Binary/Apps/bbcbasic.txt 0:
 ../../Binary/Apps/cpuspd.com 0:
+../../Binary/Apps/reboot.com 0:
+../../Binary/Apps/copysl.com 0:
+../../Binary/Apps/copysl.doc 0:
 ../../Binary/Apps/fat.com 0:
 ../../Binary/Apps/fdu.com 0:
 ../../Binary/Apps/fdu.doc 0:
@@ -28,6 +24,7 @@ d_cpm22/u0/XSUB.COM 0:
 ../../Binary/Apps/mode.com 0:
 ../../Binary/Apps/rtc.com 0:
 ../../Binary/Apps/survey.com 0:
+../../Binary/Apps/sysconfig.com 0:
 ../../Binary/Apps/syscopy.com 0:
 ../../Binary/Apps/sysgen.com 0:
 ../../Binary/Apps/talk.com 0:
@@ -47,7 +44,8 @@ d_cpm22/u0/XSUB.COM 0:
 ../../Binary/Apps/vgmplay.com 0:
 #
 ../../Binary/Apps/Test/*.com 2:
-Test/*.* 2:
+../../Binary/Apps/Test/*.doc 2:
+Common/Test/*.* 2:
 #
 # Add Tune sample files
 #
@@ -61,10 +59,10 @@ Test/*.* 2:
 #
 # Add Common Applications
 #
-Common/All/*.* 0:
+Common/All/u10/*.* 0:
+Common/All/u14/*.* 0:
+Common/All/u15/*.* 0:
 Common/CPM22/*.* 0:
-#Common/Z/u10/*.* 0:
 Common/Z/u14/*.* 0:
 Common/Z/u15/*.* 0:
 Common/SIMH/*.* 13:
-Common/UTILS/*.* 0:
diff --git a/Source/Makefile b/Source/Makefile
index ea0bd77f..012b6cf2 100644
--- a/Source/Makefile
+++ b/Source/Makefile
@@ -2,12 +2,12 @@
 # order is actually important, because of build dependencies
 #
 
-.PHONY: doc prop shared bp images rom zrc z1rcc zzrcc zrc512
+.PHONY: doc prop shared bp images rom zrc z1rcc zzrcc zrc512 fz80
 
 .ONESHELL:
-.SHELLFLAGS = -cex
+.SHELLFLAGS = -ce
 
-all: prop shared bp images rom zrc z1rcc zzrcc zrc512
+all: prop shared bp rom images zrc z1rcc zzrcc zrc512 fz80
 
 doc:
 	$(MAKE) --directory Doc $(ACTION)
@@ -40,7 +40,7 @@ images:
 	$(MAKE) --directory Images $(ACTION)
 
 rom:
-	$(MAKE) --directory HBIOS $(ACTION)
+	@$(MAKE) --directory HBIOS $(ACTION)
 
 zrc:
 	$(MAKE) --directory ZRC $(ACTION)
@@ -54,6 +54,9 @@ zzrcc:
 zrc512:
 	$(MAKE) --directory ZRC512 $(ACTION)
 
+fz80:
+	$(MAKE) --directory FZ80 $(ACTION)
+
 clean: ACTION=clean
 clean: all
 
diff --git a/Source/QPM/Build.cmd b/Source/QPM/Build.cmd
index c8a3955c..06fbe9d9 100644
--- a/Source/QPM/Build.cmd
+++ b/Source/QPM/Build.cmd
@@ -17,4 +17,8 @@ copy /b qcp27.dat + qdos27.dat + ..\cbios\cbios_una.bin qpm_una.bin || exit /b
 copy /b loader.bin + qpm_wbw.bin qpm_wbw.sys || exit /b
 copy /b loader.bin + qpm_una.bin qpm_una.sys || exit /b
 
+rem Copy OS files to Binary directory
+copy qpm_wbw.sys ..\..\Binary\QPM || exit /b
+copy qpm_una.sys ..\..\Binary\QPM || exit /b
+
 goto :eof
diff --git a/Source/QPM/Makefile b/Source/QPM/Makefile
index 30c414eb..d951500e 100644
--- a/Source/QPM/Makefile
+++ b/Source/QPM/Makefile
@@ -2,14 +2,16 @@ SYSFILES = qpm_wbw.sys qpm_una.sys
 BINFILES = qpm_wbw.bin qpm_una.bin
 OBJECTS = loader.bin $(SYSFILES) $(BINFILES)
 OTHERS = *.hex
+NOCOPY = qpm_wbw.bin qpm_una.bin loader.bin loader.lst
+DEST = ../../Binary/QPM
 TOOLS = ../../Tools
 include $(TOOLS)/Makefile.inc
 
-%.sys: %.bin loader.bin
-	cat loader.bin $*.bin > $@
+%.sys: %.bin loader.bin
+	cat loader.bin $*.bin > $@
 
 qpm_una.bin: qcp27.dat qdos27.dat ../CBIOS/cbios_una.bin
 	cat qcp27.dat qdos27.dat ../CBIOS/cbios_una.bin > $@
-
+
 qpm_wbw.bin: qcp27.dat qdos27.dat ../CBIOS/cbios_wbw.bin
 	cat qcp27.dat qdos27.dat ../CBIOS/cbios_wbw.bin > $@
diff --git a/Source/ReadMe.txt b/Source/ReadMe.txt
index 2fe241d8..917092db 100644
--- a/Source/ReadMe.txt
+++ b/Source/ReadMe.txt
@@ -45,9 +45,33 @@ process.  These scripts utilize both batch command files as well as
 Windows PowerShell.  Windows 7 or greater is recommended.  If you want 
 to use Windows Vista or XP, you will need to first install PowerShell 
 which available for free from Microsoft.  Either 32 or 64 bit versions 
-of Microsoft Windows are fine.No additional programs need to be 
+of Microsoft Windows are fine.  No additional programs need to be 
 installed to run the build.
 
+You may find that you get messages such as this during the Windows
+build process:
+
+Security warning
+Run only scripts that you trust. While scripts from the internet can be 
+useful, this script can potentially harm your computer. If you trust 
+this script, use the Unblock-File cmdlet to allow the script to run 
+without this warning message. Do you want to run 
+C:\Temp\RomWBW-v3.5.0-dev.67-Package\Source\Images\BuildDisk.ps1?
+[D] Do not run  [R] Run once  [S] Suspend  [?] Help (default is "D"):
+
+These prompts occur if Windows has marked the files as "blocked"
+because they were downloaded from the Internet.  To unblock all of
+the files in the entire RomWBW distribution tree, start PowerShell
+and navigate to the root of the distribution.  Enter the following
+command:
+
+	dir -recurse | unblock-file
+
+This will unblock all files within the distribution and preclude the
+security warning messages.  Obviously, you should make sure you have
+downloaded the RomWBW distribution from a valid/trustworthy source
+before removing the file block protection.
+
 Linux Build System Requirements
 -------------------------------
 
@@ -116,9 +140,33 @@ Each of the 4 steps above is described in more detail below.
 -----------------------------------
 
 The options for a build are primarily controlled by a configuration 
-file that is included in the build process.  In order to customize 
-your settings, it is easiest to make a copy of an existing 
-configuration file and make your changes there.
+file that is included in the build process.
+
+RomWBW uses cascading configuration files as indicated below:
+
+cfg_MASTER.asm				- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+|
++-> cfg_<platform>.asm			- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+    |
+    +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+        |
+        +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+
+The top (master configuration) file defines all possible RomWBW
+configuration settings. Each file below the master configuration file
+inherits the cumulative settings of the files above it and may
+override these settings as desired.
+
+Other than the top master file, each file must "#INCLUDE" its parent 
+file.  The top two files should not be modified.  To customize your 
+build settings you should modify the default build settings 
+(config/<platform>_std.asm) or preferably create an optional custom 
+user settings file that includes the default build settings file (see 
+example Config/SBC_user.asm).
+
+By creating a custom user settings file, you are less likely to be
+impacted by future changes because you will only be inheriting most
+of your settings which will be updated by authors as RomWBW evolves.
 
 RomWBW uses the concept of a "platform" and "configuration" to
 define the settings for a build.  Platform refers to one of the core
@@ -129,23 +177,29 @@ defaults as desired.
 The platform names are predefined.  Refer to the following table 
 to determine the <plt> component of the configuration filename:
 
-	SBC		Retrocomputing ECB Z80 SBC V1/V2
-	N8		RetroComputing N8 SBC
-	MK4		RetroComputing Mark IV Z180
-	ZETA		Sergey Kiselev's Zeta Z80
-	ZETA2		Sergey Kiselev's Zeta V2 Z80
-	RCZ80		RCBus Z80
-	RCZ180		RCBus Z180
-	SCZ180		Stephen Cousins' Z180 Systems
-	RCZ280		RCBus Z280
-	EZZ80		Sergey Kiselev's Easy/Tiny Z80
-	DYNO		Dyno Z180 Single Board Computer
-	MBC		Andrew Lynch's Nhyodyne Z80 MBC
-	RPH		Andrew Lynch's Rhyophyre Z180 SBC
+	SBC		Z80 SBC (v1 or v2) w/ ECB interface
+	ZETA		Standalone Z80 SBC w/ SBC compatibility
+	ZETA2		Second version of ZETA with enhanced memory bank switching
+	N8		MSX-ish Z180 SBC w/ onboard video and sound
+	MK4		Mark IV Z180 based SBC w/ ECB interface
+	UNA		Any Z80/Z180 computer with UNA BIOS
+	RCZ80		RCBUS based system with 512K banked RAM/ROM card
+	RCZ180		RCBUS based system with Z180 CPU
+	EZZ80		Easy Z80, Z80 SBC w/ RCBUS and CTC
+	SCZ180		Steve Cousins Z180 based system
+	DYNO		Steve Garcia's Dyno Micro-ATX Motherboard
+	RCZ280		Z280 CPU on RCBUS or ZZ80MB
+	MBC		Andrew Lynch's Multi Board Computer
+	RPH		Andrew Lynch's RHYOPHYRE Graphics Computer
 	Z80RETRO	Peter Wilson's Z80-Retro Computer
 	S100		S100 Computers Z180-based System
 	DUO		Andrew Lynch's Duodyne Computer
-	UNA		John Coffman's UNA System
+	HEATH		Les Bird's Heath Z80 Board
+	EPITX		Alan Cox' Mini-ITX System
+	MON		Jacques Pelletier's Monsputer
+	GMZ180		Doug Jacksons' Genesis Z180 System
+	NABU		NABU w/ Les Bird's RomWBW Option Board
+	FZ80		S100 Computers FPGA Z80
 
 Configuration files are found in the Source\HBIOS\Config 
 directory.  If you look in the this directory, you will see a 
@@ -170,14 +224,14 @@ and easily revert back to the original if you have problems.
 
 It is important to understand how configuration files are processed.
 They start by inheriting all of the default settings for the
-platform.  This is accomplished via the "#include" directive near
+platform.  This is accomplished via the "#INCLUDE" directive near
 the top of the file.  For the "MK4_std.asm" configuration file,
 this line reads:
 
-#include "cfg_mk4.asm"
+#INCLUDE "cfg_MK4.asm"
 
 When the configuration file (MK4_std.asm) is processed, it will first
-read in all the default platform settings from "cfg_mk4.asm".  All of
+read in all the default platform settings from "cfg_MK4.asm".  All of
 the platform default configuration files are found in the parent
 directory (the HBIOS directory).  You will see a "cfg_<plt>.asm" for
 each platform in the parent directory.
diff --git a/Source/ReadMeDoc.txt b/Source/ReadMeDoc.txt
index 0ca671e4..9e8ed406 100644
--- a/Source/ReadMeDoc.txt
+++ b/Source/ReadMeDoc.txt
@@ -22,12 +22,18 @@ Required for Windows:
  - MiKTeX (https://miktex.org/)
    - Install Roboto font from MiKTeX Console
 
-Required for Linux:
- - gpp ((apt install gpp)
- - Pandoc (dpkg -i pandoc-3.1.8-1-amd64.deb)
- - TexLive (apt install texlive-latex-extra texlive-luatex fonts-roboto texlive-fonts-extra)
+Required for Ubuntu Linux:
+ - gpp (apt install gpp)
+ - Pandoc (apt install pandoc)
+ - TexLive (apt install texlive texlive-luatex texlive-fonts-extra)
 
-The source directory for the documentation is .../Source/Doc. From this 
-directory run Build.cmd for Windows or make for Linux to create the 
-output documents.  This will create the final documents and copy them 
-to their destination directories.
\ No newline at end of file
+Required for MacOS:
+ - gpp (brew install gpp)
+ - pandoc (brew install pandoc)
+ - TexLive (brew install texlive)
+ - Roboto Font (brew install --cask font-roboto)
+
+The source directory for the documentation is /Source/Doc. From this 
+directory run "Build.cmd" on Windows or "make" on Linux/Mac to create
+the output documents.  This will create the final documents and copy
+them to their destination directories.
\ No newline at end of file
diff --git a/Source/RomDsk/Build.cmd b/Source/RomDsk/Build.cmd
index 1d094702..9947c592 100644
--- a/Source/RomDsk/Build.cmd
+++ b/Source/RomDsk/Build.cmd
@@ -10,7 +10,7 @@ set TASMTABS=%TOOLS%\tasm32
 set CPMDIR80=%TOOLS%/cpm/
 
 set RomApps1=assign mode rtc syscopy xm
-set RomApps2=fdu format survey sysgen talk timer cpuspd
+set RomApps2=fdu format survey sysgen talk timer cpuspd reboot
 
 ::
 :: Make all variants of the ROM Disk contents image.  Three sizes are
@@ -68,4 +68,7 @@ cpmcp -f %DiskDef% %Output%.dat ..\zsdos\zsys_%Bios%.sys 0:zsys.sys || exit /b
 :: Mark all disk files R/O for safety
 cpmchattr -f %DiskDef% %Output%.dat r 0:*.* || exit /b
 
+:: Dump directory for reference
+cpmls -f %DiskDef% -D %Output%.dat >%Output%.cat
+
 goto :eof
diff --git a/Source/RomDsk/Clean.cmd b/Source/RomDsk/Clean.cmd
index 0b90e072..a220b86b 100644
--- a/Source/RomDsk/Clean.cmd
+++ b/Source/RomDsk/Clean.cmd
@@ -2,3 +2,4 @@
 setlocal
 
 if exist *.dat del *.dat
+if exist *.cat del *.cat
diff --git a/Source/RomDsk/Makefile b/Source/RomDsk/Makefile
index 1f067db1..1066801b 100644
--- a/Source/RomDsk/Makefile
+++ b/Source/RomDsk/Makefile
@@ -1,5 +1,5 @@
 OBJECTS = rom0_wbw.dat rom0_una.dat rom128_wbw.dat rom128_una.dat rom256_wbw.dat rom256_una.dat rom384_wbw.dat rom384_una.dat rom896_wbw.dat rom896_una.dat
-OTHERS=*.dat
+OTHERS=*.dat *.cat
 
 TOOLS = ../../Tools
 include $(TOOLS)/Makefile.inc
@@ -7,7 +7,7 @@ include $(TOOLS)/Makefile.inc
 .SHELLFLAGS = -ce
 
 ROMAPPS1 := assign mode rtc syscopy xm
-ROMAPPS2 := fdu format survey sysgen talk timer cpuspd
+ROMAPPS2 := fdu format survey sysgen talk timer cpuspd reboot
 
 rom128_%.dat: DISKDEF=wbw_rom128
 rom256_%.dat: DISKDEF=wbw_rom256
@@ -41,3 +41,4 @@ rom0_%.dat:
 	$(CPMCP) -f $(DISKDEF) $@ ../CPM22/cpm_$(BIOS).sys 0:cpm.sys
 	$(CPMCP) -f $(DISKDEF) $@ ../ZSDOS/zsys_$(BIOS).sys 0:zsys.sys
 	$(CPMCHATTR) -f $(DISKDEF) $@ r 0:*.*
+	$(CPMLS) -f $(DISKDEF) -D $@ > $(@:.dat=.cat)
diff --git a/Source/RomDsk/ROM_256KB/FLASH.COM b/Source/RomDsk/ROM_256KB/FLASH.COM
index b14d74e3..bd5f0eeb 100644
Binary files a/Source/RomDsk/ROM_256KB/FLASH.COM and b/Source/RomDsk/ROM_256KB/FLASH.COM differ
diff --git a/Source/RomDsk/ROM_384KB/FLASH.COM b/Source/RomDsk/ROM_384KB/FLASH.COM
index b14d74e3..bd5f0eeb 100644
Binary files a/Source/RomDsk/ROM_384KB/FLASH.COM and b/Source/RomDsk/ROM_384KB/FLASH.COM differ
diff --git a/Source/RomDsk/ROM_896KB/FLASH.COM b/Source/RomDsk/ROM_896KB/FLASH.COM
index b14d74e3..bd5f0eeb 100644
Binary files a/Source/RomDsk/ROM_896KB/FLASH.COM and b/Source/RomDsk/ROM_896KB/FLASH.COM differ
diff --git a/Source/RomDsk/ROM_896KB/UNUARCU10.CFG b/Source/RomDsk/ROM_896KB/UNARCU10.CFG
similarity index 100%
rename from Source/RomDsk/ROM_896KB/UNUARCU10.CFG
rename to Source/RomDsk/ROM_896KB/UNARCU10.CFG
diff --git a/Source/UBIOS/ubios.inc b/Source/UBIOS/ubios.inc
index 58684c02..b906058d 100644
--- a/Source/UBIOS/ubios.inc
+++ b/Source/UBIOS/ubios.inc
@@ -25,3 +25,8 @@ MID_FD360	.EQU	7
 MID_FD120	.EQU	8
 MID_FD111	.EQU	9
 MID_HDNEW	.EQU	10
+;
+; SECTORS PER SLICE
+;
+SPS_HD512	.EQU	$4100
+SPS_HD1K	.EQU	$4000
diff --git a/Source/Z1RCC/Build.cmd b/Source/Z1RCC/Build.cmd
index e7ab0eea..3e32d705 100644
--- a/Source/Z1RCC/Build.cmd
+++ b/Source/Z1RCC/Build.cmd
@@ -5,19 +5,22 @@ set TOOLS=../../Tools
 
 set PATH=%TOOLS%\srecord;%PATH%
 
-if exist ..\..\Binary\RCZ180_z1rcc.rom call :build_z1rcc
+for %%f in (..\..\Binary\RCZ180_z1rcc_*.rom) do call :build %%~nf
 
 goto :eof
 
-:build_z1rcc
+:build
+echo.
+echo Creating %1 disk image...
+echo.
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x0 0x200 z1rcc_cfldr.bin -binary -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1B8 0x200 z1rcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 z1rcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ180_z1rcc.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_z1rcc_prefix.dat
+srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\%1.rom -binary -offset 0x24000 -o temp.dat -binary
+move temp.dat ..\..\Binary\%1_hd1k_prefix.dat
 
-copy /b ..\..\Binary\hd1k_z1rcc_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_z1rcc_combo.img || exit /b
+copy /b ..\..\Binary\%1_hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\%1_hd1k_combo.img || exit /b
 
 goto :eof
diff --git a/Source/Z1RCC/Makefile b/Source/Z1RCC/Makefile
index 6890e0d7..eac892d6 100644
--- a/Source/Z1RCC/Makefile
+++ b/Source/Z1RCC/Makefile
@@ -1,16 +1,13 @@
-HD1KZ1RCCPREFIX = hd1k_z1rcc_prefix.dat
-HD1KZ1RCCCOMBOIMG = hd1k_z1rcc_combo.img
-Z1RCCROM = ../../Binary/RCZ180_z1rcc.rom
-HD1KIMGS = ../../Binary/hd1k_cpm22.img ../../Binary/hd1k_zsdos.img ../../Binary/hd1k_nzcom.img \
-	../../Binary/hd1k_cpm3.img ../../Binary/hd1k_zpm3.img ../../Binary/hd1k_ws4.img
+DEST=../../Binary
 
-OBJECTS :=
+HD1KIMGS = $(DEST)/hd1k_cpm22.img $(DEST)/hd1k_zsdos.img $(DEST)/hd1k_nzcom.img \
+	$(DEST)/hd1k_cpm3.img $(DEST)/hd1k_zpm3.img $(DEST)/hd1k_ws4.img
 
-ifneq ($(wildcard $(Z1RCCROM)),)
-	OBJECTS += $(HD1KZ1RCCPREFIX) $(HD1KZ1RCCCOMBOIMG)
-endif
+ROMS := $(wildcard $(DEST)/RCZ180_z1rcc_*.rom)
+ROMS := $(patsubst $(DEST)/%.rom,%,$(ROMS))
 
-DEST=../../Binary
+OBJECTS := $(patsubst %,%_hd1k_prefix.dat,$(ROMS))
+OBJECTS += $(patsubst %,%_hd1k_combo.img,$(ROMS))
 
 TOOLS = ../../Tools
 
@@ -18,13 +15,13 @@ include $(TOOLS)/Makefile.inc
 
 DIFFPATH = $(DIFFTO)/Binary
 
-$(HD1KZ1RCCPREFIX):
+%_hd1k_prefix.dat: $(DEST)/%.rom
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x0 0x200 z1rcc_cfldr.bin -binary -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1B8 0x200 z1rcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 z1rcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(Z1RCCROM) -binary -offset 0x24000 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $< -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
-$(HD1KZ1RCCCOMBOIMG): $(HD1KZ1RCCPREFIX) $(HD1KIMGS)
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
 	cat $^ > $@
diff --git a/Source/ZRC/Build.cmd b/Source/ZRC/Build.cmd
index 181db8ab..65a188aa 100644
--- a/Source/ZRC/Build.cmd
+++ b/Source/ZRC/Build.cmd
@@ -5,34 +5,22 @@ set TOOLS=../../Tools
 
 set PATH=%TOOLS%\srecord;%PATH%
 
-if exist ..\..\Binary\RCZ80_zrc.rom call :build_zrc
-
-if exist ..\..\Binary\RCZ80_zrc_ram.rom call :build_zrc_ram
-
-goto :eof
-
-:build_zrc
-
-srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ80_zrc.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_zrc_prefix.dat
-
-copy /b ..\..\Binary\hd1k_zrc_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_zrc_combo.img || exit /b
+for %%f in (..\..\Binary\RCZ80_zrc_*.rom) do call :build %%~nf
 
 goto :eof
 
-:build_zrc_ram
+:build
+echo.
+echo Creating %1 disk image...
+echo.
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ80_zrc_ram.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_zrc_ram_prefix.dat
+srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\%1.rom -binary -offset 0x24000 -o temp.dat -binary
+move temp.dat ..\..\Binary\%1_hd1k_prefix.dat
 
-copy /b ..\..\Binary\hd1k_zrc_ram_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_zrc_ram_combo.img || exit /b
+copy /b ..\..\Binary\%1_hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\%1_hd1k_combo.img || exit /b
 
 goto :eof
diff --git a/Source/ZRC/Makefile b/Source/ZRC/Makefile
index 72ebba4f..743e0573 100644
--- a/Source/ZRC/Makefile
+++ b/Source/ZRC/Makefile
@@ -1,23 +1,13 @@
-HD1KZRCPREFIX = hd1k_zrc_prefix.dat
-HD1KZRCCOMBOIMG = hd1k_zrc_combo.img
-HD1KZRCRAMPREFIX = hd1k_zrc_ram_prefix.dat
-HD1KZRCRAMCOMBOIMG = hd1k_zrc_ram_combo.img
-ZRCROM = ../../Binary/RCZ80_zrc.rom
-ZRCRAMROM = ../../Binary/RCZ80_zrc_ram.rom
-HD1KIMGS = ../../Binary/hd1k_cpm22.img ../../Binary/hd1k_zsdos.img ../../Binary/hd1k_nzcom.img \
-	../../Binary/hd1k_cpm3.img ../../Binary/hd1k_zpm3.img ../../Binary/hd1k_ws4.img
-
-OBJECTS :=
+DEST=../../Binary
 
-ifneq ($(wildcard $(ZRCROM)),)
-	OBJECTS += $(HD1KZRCPREFIX) $(HD1KZRCCOMBOIMG)
-endif
+HD1KIMGS = $(DEST)/hd1k_cpm22.img $(DEST)/hd1k_zsdos.img $(DEST)/hd1k_nzcom.img \
+	$(DEST)/hd1k_cpm3.img $(DEST)/hd1k_zpm3.img $(DEST)/hd1k_ws4.img
 
-ifneq ($(wildcard $(ZRCRAMROM)),)
-	OBJECTS += $(HD1KZRCRAMPREFIX) $(HD1KZRCRAMCOMBOIMG)
-endif
+ROMS := $(wildcard $(DEST)/RCZ80_zrc_*.rom)
+ROMS := $(patsubst $(DEST)/%.rom,%,$(ROMS))
 
-DEST=../../Binary
+OBJECTS := $(patsubst %,%_hd1k_prefix.dat,$(ROMS))
+OBJECTS += $(patsubst %,%_hd1k_combo.img,$(ROMS))
 
 TOOLS = ../../Tools
 
@@ -25,24 +15,13 @@ include $(TOOLS)/Makefile.inc
 
 DIFFPATH = $(DIFFTO)/Binary
 
-$(HD1KZRCPREFIX):
+%_hd1k_prefix.dat: $(DEST)/%.rom
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZRCROM) -binary -offset 0x24000 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $< -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
-$(HD1KZRCRAMPREFIX):
-	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZRCRAMROM) -binary -offset 0x24000 -o temp.dat -binary
-	mv temp.dat $@
-
-$(HD1KZRCCOMBOIMG): $(HD1KZRCPREFIX) $(HD1KIMGS)
-	cat $^ > $@
-
-$(HD1KZRCRAMCOMBOIMG): $(HD1KZRCRAMPREFIX) $(HD1KIMGS)
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
 	cat $^ > $@
diff --git a/Source/ZRC512/Build.cmd b/Source/ZRC512/Build.cmd
index dbc18f58..9e5fc81e 100644
--- a/Source/ZRC512/Build.cmd
+++ b/Source/ZRC512/Build.cmd
@@ -5,19 +5,22 @@ set TOOLS=../../Tools
 
 set PATH=%TOOLS%\srecord;%PATH%
 
-if exist ..\..\Binary\RCZ80_zrc512.rom call :build_zrc512
+for %%f in (..\..\Binary\RCZ80_zrc512_*.rom) do call :build %%~nf
 
 goto :eof
 
-:build_zrc512
+:build
+echo.
+echo Creating %1 disk image...
+echo.
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x0 0x200 zrc512_cfldr.bin -binary -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc512_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc512_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ80_zrc512.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_zrc512_prefix.dat
+srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\%1.rom -binary -offset 0x24000 -o temp.dat -binary
+move temp.dat ..\..\Binary\%1_hd1k_prefix.dat
 
-copy /b ..\..\Binary\hd1k_zrc512_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_zrc512_combo.img || exit /b
+copy /b ..\..\Binary\%1_hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\%1_hd1k_combo.img || exit /b
 
 goto :eof
diff --git a/Source/ZRC512/Makefile b/Source/ZRC512/Makefile
index d04611dc..e84c6a5c 100644
--- a/Source/ZRC512/Makefile
+++ b/Source/ZRC512/Makefile
@@ -1,16 +1,13 @@
-HD1KZRC512PREFIX = hd1k_zrc512_prefix.dat
-HD1KZRC512COMBOIMG = hd1k_zrc512_combo.img
-ZRC512ROM = ../../Binary/RCZ80_zrc512.rom
-HD1KIMGS = ../../Binary/hd1k_cpm22.img ../../Binary/hd1k_zsdos.img ../../Binary/hd1k_nzcom.img \
-	../../Binary/hd1k_cpm3.img ../../Binary/hd1k_zpm3.img ../../Binary/hd1k_ws4.img
+DEST=../../Binary
 
-OBJECTS :=
+HD1KIMGS = $(DEST)/hd1k_cpm22.img $(DEST)/hd1k_zsdos.img $(DEST)/hd1k_nzcom.img \
+	$(DEST)/hd1k_cpm3.img $(DEST)/hd1k_zpm3.img $(DEST)/hd1k_ws4.img
 
-ifneq ($(wildcard $(ZRC512ROM)),)
-	OBJECTS += $(HD1KZRC512PREFIX) $(HD1KZRC512COMBOIMG)
-endif
+ROMS := $(wildcard $(DEST)/RCZ80_zrc512_*.rom)
+ROMS := $(patsubst $(DEST)/%.rom,%,$(ROMS))
 
-DEST=../../Binary
+OBJECTS := $(patsubst %,%_hd1k_prefix.dat,$(ROMS))
+OBJECTS += $(patsubst %,%_hd1k_combo.img,$(ROMS))
 
 TOOLS = ../../Tools
 
@@ -18,13 +15,13 @@ include $(TOOLS)/Makefile.inc
 
 DIFFPATH = $(DIFFTO)/Binary
 
-$(HD1KZRC512PREFIX):
+%_hd1k_prefix.dat: $(DEST)/%.rom
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x0 0x200 zrc512_cfldr.bin -binary -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc512_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc512_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZRC512ROM) -binary -offset 0x24000 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $< -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
-$(HD1KZRC512COMBOIMG): $(HD1KZRC512PREFIX) $(HD1KIMGS)
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
 	cat $^ > $@
diff --git a/Source/ZSDOS/Build.cmd b/Source/ZSDOS/Build.cmd
index 554a8dbb..def38fef 100644
--- a/Source/ZSDOS/Build.cmd
+++ b/Source/ZSDOS/Build.cmd
@@ -19,3 +19,7 @@ copy /b ..\zcpr-dj\zcpr.bin + zsdos.bin + ..\cbios\cbios_una.bin zsys_una.bin ||
 
 copy /b loader.bin + zsys_wbw.bin zsys_wbw.sys || exit /b
 copy /b loader.bin + zsys_una.bin zsys_una.sys || exit /b
+
+rem Copy OS files to Binary directory
+copy zsys_wbw.sys ..\..\Binary\ZSDOS || exit /b
+copy zsys_una.sys ..\..\Binary\ZSDOS || exit /b
diff --git a/Source/ZSDOS/Clock/ReadMe.txt b/Source/ZSDOS/Clock/ReadMe.txt
index 0fc634f7..0685385c 100644
--- a/Source/ZSDOS/Clock/ReadMe.txt
+++ b/Source/ZSDOS/Clock/ReadMe.txt
@@ -2,10 +2,10 @@ This directory contains the source and assembled versions of the
 ZSystem Clock Drivers for RomWBW HBIOS.
 
 The wbwclk.z80 source file can be compiled using Build.cmd which will
-produce a relocatable binary (hbclk.rel).
+produce a relocatable binary (wbwclk.rel).
 
-The relocatable binary should be added/updated in the STAMPS.DAT
-library.  The STAMPS.DAT file is just a standard LU type library and
+The relocatable binary should be added/updated in the CLOCKS.DAT
+library.  The CLOCKS.DAT file is just a standard LU type library and
 is easily updated using NULU.  The members are the relocatable
 binaries, but with the .REL extension removed.
 
diff --git a/Source/ZSDOS/Distribution/BGPATCH.HEX b/Source/ZSDOS/Distribution/BGPATCH.HEX
deleted file mode 100644
index 2966accc..00000000
Binary files a/Source/ZSDOS/Distribution/BGPATCH.HEX and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/CLOCKS.DAT b/Source/ZSDOS/Distribution/CLOCKS.DAT
deleted file mode 100644
index f44fa3c0..00000000
Binary files a/Source/ZSDOS/Distribution/CLOCKS.DAT and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/COPY.CFG b/Source/ZSDOS/Distribution/COPY.CFG
deleted file mode 100644
index 3d5310ac..00000000
Binary files a/Source/ZSDOS/Distribution/COPY.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/COPY.COM b/Source/ZSDOS/Distribution/COPY.COM
deleted file mode 100644
index 606c81a5..00000000
Binary files a/Source/ZSDOS/Distribution/COPY.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/COPY.UPD b/Source/ZSDOS/Distribution/COPY.UPD
deleted file mode 100644
index 3725b0e8..00000000
--- a/Source/ZSDOS/Distribution/COPY.UPD
+++ /dev/null
@@ -1,43 +0,0 @@
-                                                        11 Dec 88
-
-Some changes have been made to COPY since the manual was written.  
-Comparison of dates with Existence testing ON has been changed to 
-use the Creation date when no Modified date exists, and print 
-"Undated" when neither exists, yet both source and destination 
-disks support file date stamping.  Additionally, the /X option 
-has been re-defined, and a new /R option has been added to 
-Version 1.4.  Please replace Paragraph 4.1.2.9 on page 55 of your 
-ZSDOS manual with the following two paragraphs describing the new 
-options.
-
-
-4.1.2.9.1  ERASE SOURCE FILE AFTER COPY.
-
-When you want to "move" a file from one area to another, the "X" 
-option may be used.  This option causes a file or group of files 
-to be copied in the manner described by the default or specified 
-options, but after the copy and optional verify, the source file 
-or files are erased.  You will be notified that the file has been 
-erased by the status "(X)" being printed on your console.  To 
-minimize the possibility of deleting a good file when errors 
-exist in the copy, the Verify option should always be active, 
-either by default, or specified.  When Verify is active, any 
-errors detected will disable the "X" option for that file so that 
-a good source file will not be deleted.  The "X" option has no 
-configurable value, and is always assumed to be "Off" requiring 
-the option in the command line list to be effective.
-
-
-4.1.2.9.2  COPY ONLY FILES WHICH EXIST (REPLACE).
-
-Occasionally, you may wish to update selected files to a destina- 
-tion in a simpler manner than naming each file, or using the 
-Inspect option.  The "R" (Replace) option, when active, tells 
-COPY to transfer only files which exist on the destination direc- 
-tory.  If the Archive option (A) is added in conjunction with the 
-Replace option, only files which have not been archived, AND 
-already exist on the destination will be archived.  It should be 
-noted that the No Replacement (N) option is incompatible with 
-both the Replace and Archive options, and is disabled when either 
-"R" or "A" are active.
-
\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/DATSWEEP.COM b/Source/ZSDOS/Distribution/DATSWEEP.COM
deleted file mode 100644
index 5d298c0b..00000000
Binary files a/Source/ZSDOS/Distribution/DATSWEEP.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/DSCONFIG.COM b/Source/ZSDOS/Distribution/DSCONFIG.COM
deleted file mode 100644
index b77dd008..00000000
Binary files a/Source/ZSDOS/Distribution/DSCONFIG.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/FA16.CFG b/Source/ZSDOS/Distribution/FA16.CFG
deleted file mode 100644
index b7974d36..00000000
Binary files a/Source/ZSDOS/Distribution/FA16.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/FA16.DOC b/Source/ZSDOS/Distribution/FA16.DOC
deleted file mode 100644
index 08b46875..00000000
--- a/Source/ZSDOS/Distribution/FA16.DOC
+++ /dev/null
@@ -1,264 +0,0 @@
-
-                            FILEATTR
-                           Version 1.6
-
-                          Gene Pizzetta
-                        January 18, 1992
-      A ZSDOS utility, copyright (c) 1988 by Carson Wilson.
-
-
-FILEATTR (FA) is a utility that allows rapid settin, resetting, 
-or displaying of file attributes under ZSDOS, ZRDOS, and CP/M 
-2.2.  Several additional features are available under ZCPR3, 
-including error flag setting, error handler invocation, an 
-enhanced display, and better error detection.
-
-FA will not run under CP/M 3.0 or Z3PLUS.
-
-USAGE:
-
-     FILEATTR {dir:}{afn} {{/}options}
-
-If a DIR or DU specification is not given, the current directory 
-is assumed (under vanilla CP/M only the drive is significant).  
-If no ambiguous or unambiguous filename is given, all files 
-("*.*") are matched.
-
-If no attribute options are given, FILEATTR merely displays the 
-current state of each file's attributes.  Files are displayed in 
-the order that they appear in the directory.
-
-Once operation begins, FA cannot be aborted by the user.  If a ^C 
-is entered at the keyboard, all screen output stops, but file 
-attribute operations continue to completion.  If that was not the 
-case, attributes might be set on some entries for a file and not 
-on others.  Nevertheless, suppressing screen output speeds things 
-up a bit.
-
-OPTIONS:  A leading slash is required unless the option list is 
-the second parameter on the command line.  Options may be 
-separated by spaces, commas, or nothing at all.
-
-ATTRIBUTE OPTIONS:  These options set (turn on) corresponding 
-attributes on files matching the file specification.  Attributes 
-not specified by an attribute option remain unchanged.
-
-If the option is preceded by a minus ("-") or by an "N", the 
-corresponding attribute is reset (turned off).
-
-     1    F1.  This is a user attribute which has no predefined 
-          meaning.
-
-     P    Public (f2).  Under ZSDOS, when this attribute is set, 
-          a file is available from any user area of the disk on 
-          which it resides.  A file cannot be made public if 
-          another file with the same name exists in any other 
-          user area on that drive.  In that case FA will issue an 
-          error message and leave the attribute off.
-
-     D    Inhibit access datestamp (f3).  Under ZSDOS, when this 
-          attribute is set, the file's access datestamp will not 
-          be updated, which may speed file access slightly.  If 
-          the attribute is turned off, normal access datestamping 
-          resumes.
-
-     4    F4.  This is a user attribute which has no predefined 
-          meaning.
-
-     W    Wheel protect (f8).  Under ZSDOS, when this attribute 
-          is set, the file becomes read-only when the wheel byte 
-          is off and cannot be erased.  If the wheel byte is on, 
-          the file can be erased normally.
-
-     R    Read only (t1).  When this attribute is set, the file 
-          cannot be erased or modified by most programs.
-
-     S    System (t2).  When this attribute is set, the file 
-          becomes a "hidden" file that will not be found by most 
-          directory programs or by most well-behaved utilities 
-          that accept ambiguous filenames.  (FA must find system 
-          files, of course.)
-
-     A    Archive (t3).  When this attribute is set, it signals 
-          some archival programs that the file has not been 
-          modified since it was last backed up.  If a file is 
-          modified, ZSDOS and ZRDOS turn this attribute off.  
-          CP/M does not fully support this attribute, however.
-
-OTHER OPTIONS:  These options affect only the screen display.
-
-     Q    Quiet mode.  Console output is suppressed unless there 
-          is an error.  All other operations are performed 
-          normally.
-
-     X    Screen paging off.  With this option, screen paging is 
-          turned off.  The screen can still be paused by pressing 
-          any key except ^C.
-
-ERRORS:  Under ZCPR3, errors will cause FA to set the program 
-error flag and to invoke the error handler.  The error flag will 
-be set to the following values:
-      2   invalid directory specification
-      4   miscellaneous (conflicting file, no files on disk)
-     10   no matching files found (no error handler)
-     18   Disk read-only
-     19   Invalid option
-
-For error code 10 (no matching files found), the error flag is 
-set, but the error handler is not called.
-
-In addition, under ZCPR 3.3 and above, an invalid directory 
-specification will abort FA to the error handler, but no message 
-is printed.
-
-The following error messages may be seen:
-
-Conflicting entry, can't set public attribute
-     If there are files with the same name in other user areas of 
-     the disk, the public attribute cannot be set.
-
-No files on disk
-     The disk directory is empty.
-
-Bad Option: /o
-     The command line option shown is unknown to FILEATTR.
-
-Drive R/O
-     The drive is set to read-only by the operating system and 
-     attributes cannot be changed.
-
-CP/M version 2.x required
-     FILEATTR will not run on this system.
-
-BIOS write error near directory sector n
-     An error occurred at or near the given directory sector, 
-     which is expressed as a decimal offset from the beginning of 
-     the directory.
-
-BIOS set track detected - FA aborting
-     A background program is attempting to modify the current 
-     track setting.  The background program must be removeed 
-     before running FA again.
-     
-Not Wheel
-     Under ZCPR3 the wheel byte must be set before FILEATTR can 
-     be run.
-
-CONFIGURATION:  While no installation is necessary, all options 
-can be set as defaults, if you prefer, using ZCNFG.  The 
-configuration options are fully explained on the ZCNFG help 
-screens.
-
-It is best not to change the name of the configuration file.  Its 
-special name assures that ZCNFG will always find the correct CFG 
-file, even if the name of FA has been changed or if more than one 
-version of FA is online.
-
-HISTORY:
-
-Version 1.6 -- April 14, 1991 -- Gene Pizzetta
-     Now displays target DU and directory name in summary.  Fixed 
-     bug that caused "GO" to be displayed as program name, if it 
-     was re-invoked with the GO command.
-
-Version 1.5 -- March 27, 1991 -- Gene Pizzetta
-     Now calls CP/M version checking routine (it was there, but 
-     it wasn't called).  Changed error codes:  10, no matching 
-     files found.  "No files on disk" error now gets 
-     miscellaneous error code (4).  Error 10 does not invoke 
-     error handler.  Not released.
-
-Version 1.4 -- March 20, 1991 -- Gene Pizzetta, Howard Goldstein
-     Code to check module data byte (S2) was replaced by Howard 
-     Goldstein's elegant solution which uses a "true" extent 
-     number:  ((data_mod * 32) + extent).  Entering a ^C no 
-     longer really aborts FILEATTR; instead FA immediately prints 
-     "Wait..." on the screen, turns off paging, turns on quiet 
-     mode, sets the results flag, and finishes what it was doing. 
-     All this is to prevent unexpected results when only some of 
-     a file's directory entries are changed.  All errors 
-     including a conflicting file found during a PUBLIC request, 
-     now set the program error flag and invoke the error handler 
-     so an active SUBMIT or ZEX script can be aborted.  The error 
-     flag will have the following values:  2, invalid directory; 
-     10, no files on disk; 18, disk is read-only; 19, invalid 
-     option; 4, all other errors.  If no matching files are 
-     found, the program error flag will be set to FFh, but the 
-     error handler will not be invoked.  A few other code changes 
-     were made, including a check for CP/M-Plus, under which 
-     FILEATTR will not work.  Not released.
-
-Version 1.3 -- February 22, 1991 -- Gene Pizzetta
-     Corrected bug that caused faulty operation on large files:  
-     The module data byte (S2) byte was not being checked, so 
-     such files appeared 2 or more times in the directory display 
-     and the public routine was often not finding conflicting 
-     files.  Added configuration byte and command line option (X) 
-     for screen paging (paging is suppressed in quiet mode).  
-     Made quiet mode responsive to ZCPR quiet flag and changed Q 
-     command line option to toggle.  Usage screen reflects 
-     current effect of X and Q toggles.  Attribute configuration 
-     area changed to be compatible with ZCNFG TOGL3 routine.  
-     Actions of D and ND options reversed so they work the same 
-     as the others.  Added configuration byte for printing 
-     summary line even in quiet mode, as suggested by Howard 
-     Goldstein.  Removed blank lines from screen display, 
-     allowing three more filenames to be shown.  Removed tabs 
-     from usage screen so PRINT and PSTR are not needed.  
-     Eliminated leading zero from user number display.  Now 
-     prints "file" instead of "files" in summary when only 1 
-     matching file is found.  Ditto for attribute(s) altered.
-
-Version 1.2 -- November 30, 1988 -- Carson Wilson
-     Fixed bug of no program name display when FILEATTR's name 
-     was 8 characters long.
-
-Version 1.1 -- October 30, 1988 -- Carson Wilson
-     Now wildcards the command forms "FA d: /options" and "FA d: 
-     options."
-
-Version 1.0 -- September 26, 1988 -- Carson Wilson
-     If a filespec is given, no leading slash is required before 
-     the options.  Link with version 4 libraries.  Removed /X 
-     option--ZSDOS 10T always closes the first extent when a file 
-     is written to.  Changed summary to read "files matched".
-
-Version 0.9 -- July 7, 1988 -- Carson Wilson
-     Increased length of search FCB (AMBFIL) by one byte.  Set up 
-     AMBFIL as '?' + 35 binary 0's.  ZRDOS and CP/M zero the 
-     drive byte (FCB+0) during search next calls, so reinitialize 
-     it to '?' before rescanning the directory.  PROGID now 
-     prints stored name on GO/JUMP.
-
-Version 0.8 -- June 26, 1988 -- Carson Wilson
-     Use SYSLIB PRINT for help display.  VPRINT does not expand 
-     tabs.  Now traps disk track changes at the BIOS level.  
-     Allows '-' as well as 'N' for "negate option." Auto- 
-     wildcards FCB1 for attribute set as well as display.
-
-Version 0.7 -- May 24, 1988 -- Carson Wilson
-     Cosmetic changes to help, display.  Made public routines 
-     faster by 1/2 directory scan average.  Consolidated file 
-     attribute setting/resetting routines for efficiency and 
-     clarity.
-
-Version 0.6 -- May 14, 1988 -- Carson Wilson
-     Changed "Publ" to "Publc" and "Priv" to "Privt".  Added Q 
-     and X options, made options installable.  Added test for bad 
-     ZCPR directory & chain to error handler.
-
-Version 0.5 -- May 4, 1988 -- Carson Wilson
-     Fixed bug at CHKRO inherited from MAKE.ASM.  Uses Bridger 
-     Mitchell's FRESET to reset disks.  Uses ZCPR invocation name 
-     in signon, help, etc.  Added F4 attribute.  Now includes all 
-     valid ZSDOS attributes.  Help now fully "smart" under ZCPR.  
-     Reworked VID3.Z80 and VID4.Z80 from VLIB11 and moved them 
-     into FA.Z80 (see end of file).  Put STNDOUT mode ON by 
-     default at beginning of each attribute display sequence for 
-     faster ZCPR displays.
-
-Version 0.4 -- April 27, 1988 -- Carson Wilson
-     Tests for matching files at other user areas before setting 
-     the public attribit.
-
-Version 0.3 -- April 26, 1988 -- Carson Wilson
diff --git a/Source/ZSDOS/Distribution/FA16A.FOR b/Source/ZSDOS/Distribution/FA16A.FOR
deleted file mode 100644
index e9ed3d43..00000000
--- a/Source/ZSDOS/Distribution/FA16A.FOR
+++ /dev/null
@@ -1,6 +0,0 @@
-An update and bug-fix of FILEATTR (FA), a ZSDOS utility that 
-allows rapid setting, resetting, or displaying of file attributes 
-under ZSDOS, ZRDOS, and CP/M 2.2.  Several additional features 
-are available under ZCPR3, including error flag setting, error 
-handler invocation, and an enhanced display.  Version 1.6A adds 
-documentation; otherwise, same as 1.6.
diff --git a/Source/ZSDOS/Distribution/FA16CFG.TXT b/Source/ZSDOS/Distribution/FA16CFG.TXT
deleted file mode 100644
index 4067b9ba..00000000
--- a/Source/ZSDOS/Distribution/FA16CFG.TXT
+++ /dev/null
@@ -1,39 +0,0 @@
-
-Option Q -- If the ZCPR quiet flag is set, FILEATTR will always default to 
-quiet mode.  To make quiet mode the default at all times, even when running 
-under CP/M, set this configuration option to "Yes".  Whatever is selected 
-here can be toggled with the command line "Q" option.
-
-Option X -- A "Yes" will cause FILEATTR to page screen output by default.  
-A "No" will default to continuous scrolling.  The chosen default can be 
-toggled with the command line "X" option.  Screen paging is always turned 
-off in quiet mode.
-
-Option R -- As distributed, FILEATTR prints nothing to the screen when it 
-is operating in quiet mode.  If this configuration option is "Yes", the 
-results summary line that gives the number of matching files found and the 
-number of attributes changed will be printed even in quiet mode.
-
-Option S -- Enter the number of lines on your video display screen.  Under 
-ZCPR 3.3 and higher, the number of screen lines for paging is obtained from 
-the environment descriptor.  This configuration parameter is used only if 
-running under CP/M.
-
-
-                      Attribute Configuration Options
-
-As distributed, FILEATTR will not change any file attribute unless 
-explicitly commanded to do so by a command line option.  To configure 
-FILEATTR to turn a file attribute ON or OFF by default, toggle the 
-appropriate configuration selection.
-
-For example, to make FILEATTR set all matching files to Public by default, 
-change the "Public attribute" setting to "Turn On".  Then FILEATTR will set 
-the specified files to Public unless the /NP command line option is given 
-(which would cause the files to be set to Private).  Since there is no 
-command which tells FILEATTR not to change an attribute, however, the 
-program will now insist on turning the Public attribute either on (default) 
-or off (through the /NP option).
-
-Most users will have neither need nor desire to change the configuration 
-default as distributed which will "Leave As-Is" all matching files.
diff --git a/Source/ZSDOS/Distribution/FILEATTR.COM b/Source/ZSDOS/Distribution/FILEATTR.COM
deleted file mode 100644
index 4527d090..00000000
Binary files a/Source/ZSDOS/Distribution/FILEATTR.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/FILEDATE.CFG b/Source/ZSDOS/Distribution/FILEDATE.CFG
deleted file mode 100644
index da1ca45f..00000000
Binary files a/Source/ZSDOS/Distribution/FILEDATE.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/FILEDATE.COM b/Source/ZSDOS/Distribution/FILEDATE.COM
deleted file mode 100644
index 11b83616..00000000
Binary files a/Source/ZSDOS/Distribution/FILEDATE.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/FILEDATX.CFG b/Source/ZSDOS/Distribution/FILEDATX.CFG
deleted file mode 100644
index bfe06656..00000000
Binary files a/Source/ZSDOS/Distribution/FILEDATX.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/INITDIR.CFG b/Source/ZSDOS/Distribution/INITDIR.CFG
deleted file mode 100644
index 96baa986..00000000
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diff --git a/Source/ZSDOS/Distribution/INITDIR.COM b/Source/ZSDOS/Distribution/INITDIR.COM
deleted file mode 100644
index fd46387a..00000000
Binary files a/Source/ZSDOS/Distribution/INITDIR.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/INSTALOS.COM b/Source/ZSDOS/Distribution/INSTALOS.COM
deleted file mode 100644
index 8ce66cc5..00000000
Binary files a/Source/ZSDOS/Distribution/INSTALOS.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/LDTIMD.COM b/Source/ZSDOS/Distribution/LDTIMD.COM
deleted file mode 100644
index 6c603958..00000000
Binary files a/Source/ZSDOS/Distribution/LDTIMD.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/LDTIMP.COM b/Source/ZSDOS/Distribution/LDTIMP.COM
deleted file mode 100644
index d66f8d08..00000000
Binary files a/Source/ZSDOS/Distribution/LDTIMP.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/NZCOMPAT.HEX b/Source/ZSDOS/Distribution/NZCOMPAT.HEX
deleted file mode 100644
index e0caa8e0..00000000
--- a/Source/ZSDOS/Distribution/NZCOMPAT.HEX
+++ /dev/null
@@ -1,11 +0,0 @@
-:10028000FE01281FFE032803FEFFC0CDD802C8CD03
-:10029000BF02C021030011000113131A1B1B0947E1
-:1002A0000E03E9CDD802C8CDBF02C0210900094E16
-:1002B000234678B12804606918F501FCFF18D7605F
-:1002C00069210F000911D502C506031ABE200423B7
-:1002D0001310F8C1C9504348110101211700194EEC
-:1002E000234604EB7E23666FAFED42D0210000A7CA
-:0102F000C944
-:00000001FF
-8'	23		    6		INC	HL
-    538	  01A9'	10
\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/PUTBG.COM b/Source/ZSDOS/Distribution/PUTBG.COM
deleted file mode 100644
index 970e2d8a..00000000
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diff --git a/Source/ZSDOS/Distribution/PUTDS.COM b/Source/ZSDOS/Distribution/PUTDS.COM
deleted file mode 100644
index c0ceba64..00000000
Binary files a/Source/ZSDOS/Distribution/PUTDS.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/README.2ND b/Source/ZSDOS/Distribution/README.2ND
deleted file mode 100644
index d3c4332f..00000000
--- a/Source/ZSDOS/Distribution/README.2ND
+++ /dev/null
@@ -1,165 +0,0 @@
-GETTIN� STARTED.
-
-     The natural human inclination is to start using products 
-before wading through the instructions.  We understand that and 
-have developed some rather simple steps to provide initial ZSDOS 
-capabilities rather painlessly.  This will provide the inducement 
-to read the appropriate sections of the manual for a complete 
-customized installation.  Merely follow the steps listed here, 
-then read the manual at your liesure to learn how to tailor the 
-ZSDOS system to you particular needs and desires.  These instruc
-tions cite the relevant paragraphs in the manual in case a more 
-detailed description is desired.
-
-1� LOADIN� TH� DOS  These steps are written around the full-
-featured ZSDOS version of the Operating System to demonstrate all 
-of the power, and provide procedures for systems already using 
-either type of Time Stamping supported by ZSDOS.  It is recom
-mended that these steps be followed initially, followed by a 
-later installation with ZDDOS if either a minimal memory configu
-ration is desired, or only DateStamper-type File Stamping is 
-desired.  The differences between ZSDOS and ZDDOS are briefly 
-described in Section 1 of the manual.
-
-    A. DO YOU OPERATE UNDER NZ-COM?                   (3.1.2)
-	If No, Go To Step B.
-	If Yes,
-
-		Rename ZSDOS.ZRL to NZDOS.ZRL and replace your
-		existing NZDOS.ZRL with this new file.  Reinstall
-		NZCOM and load the system.
-
-		Go to Step 2.
-
-    B. DO YOU HAVE Plu*Perfect Systems' JETLDR?       (3.1.3)
-	If No, Go To Step C.
-	If Yes,
-
-		Type:
-			JETLDR ZSDOS.ZRL
-
-		Go to Step 2.
-
-    C. ARE YOU USING AN SB-180/FX-180 with XBIOS?     (3.1.4)
-	If No, Go To Step D.
-	If Yes,
-
-		Enter SYSBLD with your current system model.
-		Select Menu 1.1, and change the DOS name to
-		ZSDOS.ZRL.  Exit SYSBLD, and "XBOOT" the new image.
-
-		Go to Step 2.
-
-    D. YOU ARE INSTALLING TO A BOOTABLE SYSTEM IMAGE. (3.1.1)
-
-	(1) Create a system image file with MOVCPM, MOVZSYS or
-	    whatever facility you computer uses (ONEAC ON!
-	    image is already in this form).  Save the moved
-	    system image to a disk file remembering the name.
-
-
-	(2) Call the ZSDOS Installation tool in absolute mode
-	    (3.1.1.1) with:
-			INSTALOS /A
-	    Read in the image created above, and select option
-	    2 to replace the DOS.  Load the ZSDOS.ZRL file and
-	    answer 'N' (No) to the prompt asking whether to
-	    configure default options.  Select menu option 4 to
-	    exit the program and save the new image.
-
-	(3) Install the new image on your system boot tracks
-	    with the SYSGEN utility provided with your computer.
-	    WARNING: PERFORM THIS STEP ON A WORKING DISK, NOT A
-	    MASTER DISK.  Reboot your system from this disk and
-	    you will be operating under ZSDOS.
-
-
-2. You should have completed installation of one of the forms in
-step 1 at this point, and have ZSDOS up and running.  To see what
-Time Stamps can do for your system, two files have been pre-
-configured on the distribution disk.  LDTIMD.COM is an RSX form
-of DateStamper with the Relative clock.  LDTIMP.COM is an RSX form
-of P2DOS stamping also with the Relative clock.  If you are
-unfamiliar with the two methods, a brief comparison is:
-
-  Stamp Method        Advantages          Disadvantages
-  ------------        ----------          -------------
-  DateStamper(tm)     Wide acceptance     Slight Time penalty
-                      Uses Only 1 Dir     Stamp file can be
-                        entry               erased
-                      Offers Last Access
-                        stamp
-
-  P2DOS (CP/M Plus)   Fast                Uses 1/4 of Dir
-                                            Entries
-
-If you do NOT want Date/Time Stamp or clock support, go to
-Step 3, otherwise activate one of the two programs by entering
-either LDTIMD or LDTIMP (see LDTIM, 3.2.3).  Then Set the clock
-using TD.COM (4.6).
-
-To see the effect of stamping, prepare a disk for stamping with
-PUTDS.COM (3.2.4) if you selected LDTIMD, or INITDIR.COM (3.2.5)
-if you selected LDTIMP.  Copy or edit some files and note the
-effect with ZXD (4.11).  You will probably want to tailor the
-stamping to your system clock or other parameters now, so please
-read Section 3 of the manual for details.
-
-
-3. FINAL TOUCHES.  After you have completed whichever of the above 
-steps you elected, we recommend highly that you read at least 
-Sections 1 and 2 of the manual to learn the power that ZSDOS can 
-bring to 8-bit computers.  Learn to use the tools provided with 
-the ZSDOS distribution package to customize the Operating System 
-to your own requirements and desires.  All tools listed below 
-operate equally well under ZSDOS and ZDDOS unless specifically 
-noted.  Briefly, the tools are:
-
-
-     COPY - Copy single or groups of files between disk drives 
-and/or user areas preserving date/time stamps (Modification of 
-ZCPR tool MCOPY).  (4.1)
-
-     DATSWEEP  (ZDDOS or ZSDOS with DateStamper only) - 
-Plu*Perfect's full-featured screen-oriented disk and file utility 
-(4.2).
-
-     FILEATTR - Display/Set attributes of individual or groups of 
-files.  (4.3)
-
-     FILEDATE (ZDDOS or ZSDOS with DateStamper only) - Full fea
-tured Disk directory lister that permits elaborate selective 
-listing based on DateStamper-style Date/Time files.  (4.4)
-
-     INITDIR - Initialize a disk directory for P2DOS (CP/M Plus) 
-type Date/Time Stamping.  (3.2.5)
-
-     PUTDS - Initialize a disk for DateStamper type Date/Time 
-Stamping (licensed Plu*Perfect utility).  (3.2.4)
-
-     RELOG - Resets Hard Disk Login vectors.  Primarily for use 
-in more elaborate Hard Disk systems which swap logical Hard 
-Drives, or use removeable-media, but are defined as Fixed Drives.  
-(4.5)
-
-     TD - Display/Set an installed clock via ZSDOS/ZDDOS.  (4.6)
-
-     ZCAL - Display a brief calendar of current or any desired 
-month.  (4.7)
-
-     ZCNFG - Configuration utility to set defaults, such as US or 
-European date displays, in COPY, FILEATTR, FILEDATE, TD, and ZXD.
-
-     ZPATH (ZSDOS only) - Permits setting the Internal DOS path 
-as well as a ZCPR3 path (Modification of ZCPR tool PATH).  (4.9)
-
-     ZSCONFIG - Basic configuration program for both ZSDOS and 
-ZDDOS.  Operates in both interactive and command-line driven 
-modes wih the latter being ideal for customizing the System from 
-a STARTUP file under ZCPR3 environments.  Options vary between 
-ZSDOS and ZDDOS.  (4.10)
-
-     ZXD - Directory lister for DateStamper and/or P2DOS (CP/M 
-Plus) Date/Time stamping methods (Extensive modification of ZCPR 
-tool XD III).  (4.11)
-
\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/RELOG.COM b/Source/ZSDOS/Distribution/RELOG.COM
deleted file mode 100644
index 13ffc62e..00000000
Binary files a/Source/ZSDOS/Distribution/RELOG.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/SETTERM.COM b/Source/ZSDOS/Distribution/SETTERM.COM
deleted file mode 100644
index eca19bf9..00000000
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diff --git a/Source/ZSDOS/Distribution/SETUPZST.COM b/Source/ZSDOS/Distribution/SETUPZST.COM
deleted file mode 100644
index 35e4b589..00000000
Binary files a/Source/ZSDOS/Distribution/SETUPZST.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/STAMPS.DAT b/Source/ZSDOS/Distribution/STAMPS.DAT
deleted file mode 100644
index 23cd9bd7..00000000
Binary files a/Source/ZSDOS/Distribution/STAMPS.DAT and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/TD.CFG b/Source/ZSDOS/Distribution/TD.CFG
deleted file mode 100644
index ab44bab9..00000000
Binary files a/Source/ZSDOS/Distribution/TD.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/TD.COM b/Source/ZSDOS/Distribution/TD.COM
deleted file mode 100644
index 552aba67..00000000
Binary files a/Source/ZSDOS/Distribution/TD.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/TERMBASE.DAT b/Source/ZSDOS/Distribution/TERMBASE.DAT
deleted file mode 100644
index 358d61c0..00000000
Binary files a/Source/ZSDOS/Distribution/TERMBASE.DAT and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/TESTCLOK.COM b/Source/ZSDOS/Distribution/TESTCLOK.COM
deleted file mode 100644
index d547e2b8..00000000
Binary files a/Source/ZSDOS/Distribution/TESTCLOK.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/USERCLOK.TEM b/Source/ZSDOS/Distribution/USERCLOK.TEM
deleted file mode 100644
index 619215d5..00000000
--- a/Source/ZSDOS/Distribution/USERCLOK.TEM
+++ /dev/null
@@ -1,185 +0,0 @@
-	TITLE	"Clock module name - (REL clock name here)"
-	SUBTTL	"Description of Clock Module"
-;================================================================
-; Place brief description and machine clock I/O parameters here
-; along with any version and date data
-;================================================================
-
-VERS	EQU	01
-	.Z80
-	NAME	CCLOK		; Change this to no more than 6-char
-				; name for the REL driver module
-
-	MACLIB	CLOCK.LIB	; Some useful equates are here
-
-; This first section contains identification information for the driver
-; The information is not placed in the clock driver code section, but are
-; located in a different area located by the _CLKID Named Common directive.
-
-	COMMON	/_CLKID/
-
-DESCST:	DEFW	0000		; Add label here if a static year byte
-				; is used by your clock driver.  The
-				; label should point to the year byte
-
-CLKNAM:	DEFB	'Myclock                 '	; Exactly 24 chars in name
-	DEFB	VERS/10+'0','.',VERS MOD 10 +'0',0
-
-DESCR:	DEFB	'  This description may be longer than the brief',CR,LF
-	DEFB	'  name string above, and must be null-terminated',0
-
-	  IF  [$-DESCST] > 256
-	OVER2			; This must be less than or equal to 256 bytes
-	  ENDIF
-
-	PAGE
-	SUBTTL	"Configurable Clock Hardware Parameters"
-;---------------------------------------------------------------------
-; This section contains any configurable parameters needed for the
-; clock driver.  They must be structured in the manner shown in order
-; for the loader to properly match and set the values.
-; The values in this section are not loaded in the same code section
-; as the actual driver code, but are located in another base referenced
-; by the _PARM_ Named Common directive.
-
-	COMMON	/_PARM_/
-
-PARBAS:	DEFW	NPARAMS		; # of parameters (Set to 00 if none)
-	DEFW	STRS		; Pointer to STRS (Set to 00 if none)
-NP0:
-XYR	EQU	$+1
-	DEFB	BYTE		; EXAMPLE! - This shows a byte value
-	DEFW	88H		;    "     - ..and default value in Set
-
-XPORT	EQU	$+1
-	DEFB	WORD		; EXAMPLE! - This shows a 16-bit value
-	DEFW	0F013H		;    "     - ..and default value in Set
-
-NPARAMS	EQU	($-NP0)/3
-
-STRS:	DEFB	'Default Year',0	; EXAMPLE! - Text prompt for XYR
-	DEFB	'Default Port',0	; EXAMPLE! - Text prompt for XPORT
-
-	PAGE
-	SUBTTL	"Clock Code - SB180 HeartBeat"
-;------------------------------------------------------------------
-; This section should contain the actual Clock Driver code, and all
-; entries here are located in the CSEG, or Code Segment.
-
-	CSEG
-
-; Add any needed equates here if they are not included in CLOCK.LIB
-
-TIMOFF	EQU	36H		; EXAMPLE! - Bios offset for clock ptr
-
-;-----------------------------------------------------------
-;	    Z S D O S    C L O C K    H E A D E R
-;-----------------------------------------------------------
-; Enter: HL points to a 6-byte buffer to Get/Set time
-; Exit :  A=1 on Success, A=FFH if error
-;	 HL points to last char in buffer
-; NOTE: If clock Set is not included, comment these two jumps
-;	out to save a few bytes.  The loader, SETUPZST, uses
-;	these two jumps to recognize a full ZSDOS clock and
-;	modify the interface code.
-
-PRGBAS:	JP	GETTIM		; Jump to Read Clock
-	JP	WRCLK		; Jump to Set Clock
-
-;- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-;		R e a d    T h e    C l o c k
-;- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-; Clock READ code starts here.
-
-GETTIM:				; The work of reading the clock
-				; goes here.  Values needing to be set
-				; during installation are referenced as:
-;YPORT1	EQU	$+1
-;	LD	BC,0000		; EXAMPLE! - this will set a 16-bit value
-;				;	in the configuration process
-;YYR	EQU	$+1		; EXAMPLE! - This will set an 8-bit value
-;	LD	A,00		;	in the configuration process
-
-; ... Place the meat of the driver in this section ...
-
-OKRET:	LD	A,01		; Set OK status return
-	RET
-
-ERRET:	OR	0FFH		; Set Error code if needed
-	RET
-
-;- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-;		S e t    T h e    C l o c k
-;- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-; Clock Set code placed here if needed.  If Clock Setting
-; is not being added, comment out this section to save a
-; byte of code.
-
-WRCLK:
-	RET
-
-	PAGE
-	SUBTTL	"Run-Time Configuration of Ports and Masks"
-;-------------------------------------------------------------
-; This code installs configurable items into the clock module
-; Enter with DE pointing to the physical base address of the
-;	 relocatable module.  DE MUST BE USED TO SET VALUES IN
-;	 THE CSEG PORTION OF CODE!
-; NOTE: Code in this section is not added to the actual clock
-;	driver, but placed in a different area referenced to
-;	the common base _POST_.
-
-	COMMON	/_POST_/
-
-; Values in the _PARM_, _POST_ and _PRE_ sections may be loaded
-; and saved directly, since their addresses are constant from
-; linkage through execution.  Setting or reading values in the
-; CSEG must be indirect based on the value in the DE register
-; pair.  The following examples show how to access the various
-; sections.
-;
-;	LD	A,(XYR)		; EXAMPLE - Get byte from _PARM_ directly
-;	LD	HL,YYR		;    "    - Begin offset into CSEG indirectly
-;	ADD	HL,DE		;    "    - HL now addresses relocated loc'n
-;	LD	(HL),A		;    "    - ..so value can be stored
-;
-; Likewise, 16-bit values must be accessed indirectly, and may use
-; the BC register pair as transfer storage.
-;
-;	LD	BC,(XPORT)	; EXAMPLE - Get word from _PARM_ directly
-;	LD	HL,YPORT1	;    "    - Begin offset into CSEG indirectly
-;	ADD	HL,DE		;    "    - HL now addresses relocated loc'n
-;	LD	(HL),C		;    "    - ..so value can be saved..
-;	INC	HL		;    "    - ...a byte..
-;	LD	(HL),B		;    "    - ....at a time..
-;
-;	LD	(YPORT2),BC	; EXAMPLE - Values can be stored directly into
-;				     "    - other sections such as _PRE_
-
-	RET		; This RETURN MUST be present even if no other
-			; code is included in this section
-
-
-	PAGE
-	SUBTTL	"Pre-Execution Clock Checks (Check for ticking)"
-;----------------------------------------------------------------
-; This module is executed just prior to installing the module to
-;   insure that a valid clock is present
-; Enter with DE pointing to base of relocated clock code segment
-
-	COMMON	/_PRE_/
-
-; Optional final setup of the clock module may go here.  Examples of such
-; code would be installation-dependant items such as physical RAM location
-; for the driver module.  If any code is added here, the DE register pair
-; MUST be preserved to properly inter PRECLOCK code (If included).
-
-;YPORT2	EQU	$+1		; EXAMPLE - just to show accessing method
-;	LD	BC,0000		;    "    - ..from _POST_ code.
-
-	INCLUDE	PRECLOCK.LIB	; This section of code merely calls the
-				; clock and waits an arbitrary period of
-				; time (>> 1 second) to see if the time
-				; changes.  It returns an error if not.
-	END
-
\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/ZCAL.COM b/Source/ZSDOS/Distribution/ZCAL.COM
deleted file mode 100644
index f239e952..00000000
Binary files a/Source/ZSDOS/Distribution/ZCAL.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZCNFG.COM b/Source/ZSDOS/Distribution/ZCNFG.COM
deleted file mode 100644
index ae423dc5..00000000
Binary files a/Source/ZSDOS/Distribution/ZCNFG.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZCNFG24.CFG b/Source/ZSDOS/Distribution/ZCNFG24.CFG
deleted file mode 100644
index 1bfe49bf..00000000
Binary files a/Source/ZSDOS/Distribution/ZCNFG24.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZDDOS.HEX b/Source/ZSDOS/Distribution/ZDDOS.HEX
deleted file mode 100644
index aaa41d74..00000000
--- a/Source/ZSDOS/Distribution/ZDDOS.HEX
+++ /dev/null
@@ -1,254 +0,0 @@
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\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/ZDDOS.ZRL b/Source/ZSDOS/Distribution/ZDDOS.ZRL
deleted file mode 100644
index 800f2a33..00000000
Binary files a/Source/ZSDOS/Distribution/ZDDOS.ZRL and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZPATH.COM b/Source/ZSDOS/Distribution/ZPATH.COM
deleted file mode 100644
index 5c0aa503..00000000
Binary files a/Source/ZSDOS/Distribution/ZPATH.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZSCONFIG.COM b/Source/ZSDOS/Distribution/ZSCONFIG.COM
deleted file mode 100644
index 2cc26074..00000000
Binary files a/Source/ZSDOS/Distribution/ZSCONFIG.COM and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZSDOS.HEX b/Source/ZSDOS/Distribution/ZSDOS.HEX
deleted file mode 100644
index 7b32bc49..00000000
--- a/Source/ZSDOS/Distribution/ZSDOS.HEX
+++ /dev/null
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\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/ZSDOS.ZRL b/Source/ZSDOS/Distribution/ZSDOS.ZRL
deleted file mode 100644
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diff --git a/Source/ZSDOS/Distribution/ZSVSTAMP.CIM b/Source/ZSDOS/Distribution/ZSVSTAMP.CIM
deleted file mode 100644
index 4756dfac..00000000
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diff --git a/Source/ZSDOS/Distribution/ZSVSTAMP.COM b/Source/ZSDOS/Distribution/ZSVSTAMP.COM
deleted file mode 100644
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diff --git a/Source/ZSDOS/Distribution/ZSVSTAMP.DOC b/Source/ZSDOS/Distribution/ZSVSTAMP.DOC
deleted file mode 100644
index 2a8a7c1e..00000000
--- a/Source/ZSDOS/Distribution/ZSVSTAMP.DOC
+++ /dev/null
@@ -1,118 +0,0 @@
-                      ZSVSTAMP USAGE NOTES
-
-
-
-1.0  INTRODUCTION
-
-     ZSVSTAMP is a utility program that saves the create
-date/time stamp of a given file in memory.  At a later time,
-ZSVSTAMP can restore the create stamp to a file.  This can be
-useful when modifying a file with an editor that actually creates
-a new copy of the file rather than modifying it in place.
-ZSVSTAMP allows the original creation date of the document to be
-retained.
-
-     In order to support all types of date stamping under ZSDOS,
-ZSVSTAMP uses the get/set stamp functions of ZSDOS (or ZDDOS) and
-thus may only be run under these operating systems.  It also
-requires ZCPR3 with multiple command line, external FCB and
-message buffer.  If an attempt is made to run ZSVSTAMP on a
-system that does not meet these requirements, the program will
-abort with an error message.
-
-
-
-2.0  OPERATION
-
-     ZSVSTAMP has two modes of operation -- Manual and Automatic.
-
-
-
-2.1  Automatic Mode
-
-     This mode is the most commonly used.  It is extremely well
-suited for use in alias scripts and can make the whole process of
-saving and restoring date stamps virtually transparent to the
-user.  The syntax is:
-
-     ZSVSTAMP approg [ufn]
-
-where "approg" is the program, such as an editor, that you wish
-to run and "ufn" is an unambiguous file name to be modified by
-"approg." When a command of this type is given, ZSVSTAMP saves
-"ufn"'s creation date in protected memory.  It then causes
-"approg" to be run, and when "approg" finishes, ZSVSTAMP is
-automatically run again to restore the original create stamp to
-"ufn." If "ufn" does not exist, or if the disk does not support
-date stamping, ZSVSTAMP displays a warning message and
-immediately passes control to "approg" without attempting to save
-a stamp.  In this situation, ZSVSTAMP is not rerun when "approg"
-completes execution.
-
-     Some editors allow a syntax such as
-
-     EDIT oldfile newfile
-
-When ZSVSTAMP is invoked with more than one parameter following
-the application name, no stamps are saved or restored.  This
-feature can be disabled if desired, (see the section on
-customization).
-
-
-
-2.2  Manual Mode
-
-     Manual mode can be used to save or restore a file's create
-stamp.  The syntax is:
-
-     ZSVSTAMP ufn /G or /S
-
-to Get or Save a file's create stamp, or:
-
-     ZSVSTAMP ufn /P or /R
-
-to Put or Restore a saved stamp back onto a file.
-
-
-
-3.0  CUSTOMIZING ZSVSTAMP
-
-There are five configuration flags located near the beginning of
-the program.  Each flag is preceeded by an ASCII string to help
-identify its function.  These flags may be patched to customize
-ZSVSTAMP as desired.
-
-     The first four flags determine whether or not various
-warning messages can be displayed when ZSVSTAMP is being run in
-Automatic Mode.  Setting a flag to 0 disables its associated
-message;  any other value enables the message.  The flags are
-labeled "NOSTMP," "NOFILE," "READERR," and "UPDTERR," and they
-affect the "Disk has no time/date stamps," "File not found,"
-"Can't read time/date stamp," and "Can't update time/date stamp"
-messages respectively.  The program is distributed with all four
-messages enabled.  Please note that these flags have no effect in
-Manual Mode where error messages are always enabled.
-
-     The fifth and final configuration flag is labeled
-"REPLALWS." It determines what ZSVSTAMP will do when more than
-one parameter follows the application name in an Automatic Mode
-command.  If the byte following the "REPLALWS" label equals 0,
-ZSVSTAMP checks to see if there is more than one parameter
-following the application program name.  If there is, ZSVSTAMP
-simply exits to the application without saving or updating any
-stamps.  (This is the default setting in the distributed
-version.) If the "REPLALWS" flag is non-zero, no such check is
-made.  
-
-
-
-4.0  CONTACTING THE AUTHOR
-
-     Howard Goldstein may be contacted at:
-
-     Newton Centre Z-Node, (Z-Node  3):  617/965-7259
-
-     Ladera Z-Node, (Z-Node  2):  213/670-9465
-
-     Home phone, (voice):  203/787-1918
-
\ No newline at end of file
diff --git a/Source/ZSDOS/Distribution/ZXD.CFG b/Source/ZSDOS/Distribution/ZXD.CFG
deleted file mode 100644
index f202ae59..00000000
Binary files a/Source/ZSDOS/Distribution/ZXD.CFG and /dev/null differ
diff --git a/Source/ZSDOS/Distribution/ZXD.COM b/Source/ZSDOS/Distribution/ZXD.COM
deleted file mode 100644
index 20395673..00000000
Binary files a/Source/ZSDOS/Distribution/ZXD.COM and /dev/null differ
diff --git a/Source/ZSDOS/Makefile b/Source/ZSDOS/Makefile
index 55731ea4..a8c54f49 100644
--- a/Source/ZSDOS/Makefile
+++ b/Source/ZSDOS/Makefile
@@ -2,6 +2,8 @@ SYSFILES = zsys_wbw.sys zsys_una.sys
 BINFILES =  zsys_wbw.bin zsys_una.bin
 OBJECTS = $(SYSFILES) $(BINFILES)
 OTHERS = zsdos.rel zsdos.err loader.bin zsdos.bin
+NOCOPY = zsys_wbw.bin zsys_una.bin loader.* zsdos.*
+DEST = ../../Binary/ZSDOS
 TOOLS = ../../Tools
 CCP = ../ZCPR-DJ/zcpr.bin
 
@@ -13,9 +15,9 @@ zsdos.rel: zsdos.z80
 zsdos.bin: zsdos.rel
 	$(ZXCC) LINK -$@=$<[LD800]
 
-%.sys:	%.bin loader.bin
-	cat loader.bin $*.bin > $@
-
+%.sys:	%.bin loader.bin
+	cat loader.bin $*.bin > $@
+
 zsys_wbw.bin: $(CCP) zsdos.bin ../CBIOS/cbios_wbw.bin
 	cat $(CCP) zsdos.bin ../CBIOS/cbios_wbw.bin > $@
 
diff --git a/Source/ZZRCC/Build.cmd b/Source/ZZRCC/Build.cmd
index f520b11a..d0e105c4 100644
--- a/Source/ZZRCC/Build.cmd
+++ b/Source/ZZRCC/Build.cmd
@@ -1,41 +1,26 @@
-:: @echo off
+@echo off
 setlocal
 
-set ROMFILE=..\..\Binary\RCZ280_zzrcc.rom
-set ROMSIZE=262144
-
 set TOOLS=../../Tools
 
 set PATH=%TOOLS%\srecord;%PATH%
 
-if exist ..\..\Binary\RCZ280_zzrcc.rom call :build_zzrcc
-
-if exist ..\..\Binary\RCZ280_zzrcc_ram.rom call :build_zzrcc_ram
-
-goto :eof
-
-:build_zzrcc
-
-srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ280_zzrcc.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_zzrcc_prefix.dat
-
-copy /b ..\..\Binary\hd1k_zzrcc_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_zzrcc_combo.img || exit /b
+for %%f in (..\..\Binary\RCZ280_zzrcc_*.rom) do call :build %%~nf
 
 goto :eof
 
-:build_zzrcc_ram
+:build
+echo.
+echo Creating %1 disk image...
+echo.
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ280_zzrcc_ram.rom -binary -offset 0x24000 -o temp.dat -binary
-move temp.dat ..\..\Binary\hd1k_zzrcc_ram_prefix.dat
+srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\%1.rom -binary -offset 0x24000 -o temp.dat -binary
+move temp.dat ..\..\Binary\%1_hd1k_prefix.dat
 
-copy /b ..\..\Binary\hd1k_zzrcc_ram_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_zzrcc_ram_combo.img || exit /b
+copy /b ..\..\Binary\%1_hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\%1_hd1k_combo.img || exit /b
 
 goto :eof
diff --git a/Source/ZZRCC/Makefile b/Source/ZZRCC/Makefile
index f0bbde6a..ea1249c8 100644
--- a/Source/ZZRCC/Makefile
+++ b/Source/ZZRCC/Makefile
@@ -1,23 +1,13 @@
-HD1KZZRCCPREFIX = hd1k_zzrcc_prefix.dat
-HD1KZZRCCCOMBOIMG = hd1k_zzrcc_combo.img
-HD1KZZRCCRAMPREFIX = hd1k_zzrcc_ram_prefix.dat
-HD1KZZRCCRAMCOMBOIMG = hd1k_zzrcc_ram_combo.img
-ZZRCCROM = ../../Binary/RCZ280_zzrcc.rom
-ZZRCCRAMROM = ../../Binary/RCZ280_zzrcc_ram.rom
-HD1KIMGS = ../../Binary/hd1k_cpm22.img ../../Binary/hd1k_zsdos.img ../../Binary/hd1k_nzcom.img \
-	../../Binary/hd1k_cpm3.img ../../Binary/hd1k_zpm3.img ../../Binary/hd1k_ws4.img
-
-OBJECTS :=
+DEST=../../Binary
 
-ifneq ($(wildcard $(ZZRCCROM)),)
-	OBJECTS += $(HD1KZZRCCPREFIX) $(HD1KZZRCCCOMBOIMG)
-endif
+HD1KIMGS = $(DEST)/hd1k_cpm22.img $(DEST)/hd1k_zsdos.img $(DEST)/hd1k_nzcom.img \
+	$(DEST)/hd1k_cpm3.img $(DEST)/hd1k_zpm3.img $(DEST)/hd1k_ws4.img
 
-ifneq ($(wildcard $(ZZRCCRAMROM)),)
-	OBJECTS += $(HD1KZZRCCRAMPREFIX) $(HD1KZZRCCRAMCOMBOIMG)
-endif
+ROMS := $(wildcard $(DEST)/RCZ280_zzrcc_*.rom)
+ROMS := $(patsubst $(DEST)/%.rom,%,$(ROMS))
 
-DEST=../../Binary
+OBJECTS := $(patsubst %,%_hd1k_prefix.dat,$(ROMS))
+OBJECTS += $(patsubst %,%_hd1k_combo.img,$(ROMS))
 
 TOOLS = ../../Tools
 
@@ -25,24 +15,13 @@ include $(TOOLS)/Makefile.inc
 
 DIFFPATH = $(DIFFTO)/Binary
 
-$(HD1KZZRCCPREFIX):
+%_hd1k_prefix.dat: $(DEST)/%.rom
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZZRCCROM) -binary -offset 0x24000 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $< -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
-$(HD1KZZRCCRAMPREFIX):
-	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZZRCCRAMROM) -binary -offset 0x24000 -o temp.dat -binary
-	mv temp.dat $@
-
-$(HD1KZZRCCCOMBOIMG): $(HD1KZZRCCPREFIX) $(HD1KIMGS)
-	cat $^ > $@
-
-$(HD1KZZRCCRAMCOMBOIMG): $(HD1KZZRCCRAMPREFIX) $(HD1KIMGS)
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
 	cat $^ > $@
diff --git a/Source/ver.inc b/Source/ver.inc
index 93f95abc..35b8ccb2 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	5
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.5.0-dev.38"
+#DEFINE BIOSVER	"3.5.0-dev.95"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index d00f1741..15a09a02 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	5
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.5.0-dev.38"
+	db	"3.5.0-dev.95"
 	endm
diff --git a/Tools/Makefile b/Tools/Makefile
index 74baac9a..a4bbdb71 100644
--- a/Tools/Makefile
+++ b/Tools/Makefile
@@ -3,7 +3,7 @@
 #
 
 .ONESHELL:
-.SHELLFLAGS = -cex
+.SHELLFLAGS = -ce
 
 UNAME := $(shell uname)
 
diff --git a/Tools/Makefile.inc b/Tools/Makefile.inc
index 10be67c5..1701be38 100644
--- a/Tools/Makefile.inc
+++ b/Tools/Makefile.inc
@@ -43,6 +43,7 @@ TASM=$(BINDIR)/uz80as -t z80
 TASMFLAGS=
 OPENSPIN=$(BINDIR)/openspin
 CPMCP=$(BINDIR)/cpmcp
+CPMLS=$(BINDIR)/cpmls
 CPMCHATTR=$(BINDIR)/cpmchattr
 
 #
@@ -56,7 +57,7 @@ CPM=$(TOOLS)/cpm/bin80/
 #    exit if any command returns a non-zero result ("x").
 #
 .ONESHELL:
-.SHELLFLAGS = -cex
+.SHELLFLAGS = -ce
 
 %.com: %.asm
 	@if [ "$(USETASM)" = 1 ] ; then \
@@ -70,52 +71,52 @@ CPM=$(TOOLS)/cpm/bin80/
 	fi
 
 %.rom: %.asm
-	$(TASM) $(TASMFLAGS) $< $@ $*.lst
+	@$(TASM) $(TASMFLAGS) $< $@ $*.lst
 
 %.hex: %.asm
-	$(ZXCC) $(CPM)/MAC -$< -$$PO
+	@$(ZXCC) $(CPM)/MAC -$< -$$PO
 
 %.bin: %.ASM
-	$(ZXCC) $(CPM)/MAC -$< -$$PO
+	@$(ZXCC) $(CPM)/MAC -$< -$$PO
 	$(ZXCC) $(CPM)/MLOAD25 -tmp.bin=$*.hex
 	mv tmp.bin $@
 	rm -f /tmp/casefn.cache
 	rm -f $$($(CASEFN) $*.hex)
 
 %.com: %.z80
-	$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/F
+	@$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/F
 	rm -f /tmp/casefn.cache
 	mv $$($(CASEFN) $@) tmp.com ; mv tmp.com $@
 
 %.bin: %.asm
-	$(TASM) $(TASMFLAGS) $< $@ $(basename $<).lst
+	@$(TASM) $(TASMFLAGS) $< $@ $(basename $<).lst
 
 %.rel: %.asm
-	$(ZXCC) $(CPM)/RMAC -$<
+	@$(ZXCC) $(CPM)/RMAC -$<
 
 %.rel: %.z80
-	$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/MF
+	@$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/MF
 
 #%.hex: %.z80
-#	$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/HF
+#	@$(ZXCC) $(CPM)/Z80ASM -$(basename $<)/HF
 
 %.hex: %.z80
-	$(ZXCC) $(CPM)/SLR180 -$(basename $<)/HF
+	@$(ZXCC) $(CPM)/SLR180 -$(basename $<)/HF
 
 %.rel: %.azm
-	$(ZXCC) $(CPM)/ZSM =$< -/L
+	@$(ZXCC) $(CPM)/ZSM =$< -/L
 
 %.bin: %.rel
-	$(ZXCC) $(CPM)/LINK -$@=$<
+	@$(ZXCC) $(CPM)/LINK -$@=$<
 
 %.rel: %.mac
-	$(ZXCC) $(CPM)/M80 -=$(basename $<)
+	@$(ZXCC) $(CPM)/M80 -=$(basename $<)
 
 %.com: %.rel
-	$(ZXCC) $(CPM)/L80 -$(basename $<),$(basename $<).com/n/e
+	@$(ZXCC) $(CPM)/L80 -$(basename $<),$(basename $<).com/n/e
 
 %.eeprom: %.spin
-	$(OPENSPIN) -e $<
+	@$(OPENSPIN) -e $<
 
 #
 # first target is default
diff --git a/Tools/simh/Sim.cmd b/Tools/simh/Sim.cmd
index 3e501ab8..7ba86838 100644
--- a/Tools/simh/Sim.cmd
+++ b/Tools/simh/Sim.cmd
@@ -1,5 +1,5 @@
 @echo off
-set ROM=..\..\Binary\SBC_simh.rom
+set ROM=..\..\Binary\SBC_simh_std.rom
 if not "%1"=="" set ROM=..\..\Binary\%1.rom
 if not exist %ROM% goto romerr
 :: start C:\Users\WWarthen\Bin\putty.exe -load "SIMH Telnet"
diff --git a/Tools/simh/altairz80.exe b/Tools/simh/altairz80.exe
index 5e34f627..8222fb91 100644
Binary files a/Tools/simh/altairz80.exe and b/Tools/simh/altairz80.exe differ
diff --git a/Tools/simh/altairz80_doc.pdf b/Tools/simh/altairz80_doc.pdf
new file mode 100644
index 00000000..00edf44f
Binary files /dev/null and b/Tools/simh/altairz80_doc.pdf differ
diff --git a/Tools/simh/simh.pdf b/Tools/simh/simh.pdf
new file mode 100644
index 00000000..fc903686
Binary files /dev/null and b/Tools/simh/simh.pdf differ
diff --git a/Tools/simh/simh_doc.pdf b/Tools/simh/simh_doc.pdf
new file mode 100644
index 00000000..efca7269
Binary files /dev/null and b/Tools/simh/simh_doc.pdf differ
diff --git a/Tools/simh/simh_faq.pdf b/Tools/simh/simh_faq.pdf
new file mode 100644
index 00000000..45c23060
Binary files /dev/null and b/Tools/simh/simh_faq.pdf differ
diff --git a/Tools/unix/Makefile b/Tools/unix/Makefile
index ebdecfb5..7cefdb27 100644
--- a/Tools/unix/Makefile
+++ b/Tools/unix/Makefile
@@ -3,7 +3,7 @@
 #
 
 .ONESHELL:
-.SHELLFLAGS = -cex
+.SHELLFLAGS = -ce
 
 UNAME := $(shell uname)
 ifeq ($(UNAME), Linux)
@@ -20,4 +20,4 @@ all:
 	@$(foreach subdir,$(SUBDIRS),$(MAKE) --directory $(subdir) all;)
 
 clean:
-	@$(foreach subdir,$(SUBDIRS),$(MAKE) --directory $(subdir) clean;)
\ No newline at end of file
+	@$(foreach subdir,$(SUBDIRS),$(MAKE) --directory $(subdir) clean;)
diff --git a/Tools/unix/uz80as/uz80as.c b/Tools/unix/uz80as/uz80as.c
index 35c13ac0..eea8715e 100644
--- a/Tools/unix/uz80as/uz80as.c
+++ b/Tools/unix/uz80as/uz80as.c
@@ -923,7 +923,7 @@ static int checksum(int a, int b)
 
 	n = 0;
 	while (a < b)
-		n += s_mem[a++];
+		n ^= s_mem[a++];
 
 	return n;
 }