diff --git a/Source/BPBIOS/diskdefs b/Source/BPBIOS/diskdefs
index 81d962cc..f29deca1 100644
--- a/Source/BPBIOS/diskdefs
+++ b/Source/BPBIOS/diskdefs
@@ -310,6 +310,32 @@ diskdef wbw_rom1024
   os 2.2
 end
 
+# RomWBW 512KB RAM (256KB reserved, 256KB RAM Disk)
+
+diskdef wbw_ram512
+  seclen 512
+  tracks 8
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
+# RomWBW 1024KB RAM (256KB reserved, 768KB RAM Disk)
+
+diskdef wbw_ram1024
+  seclen 512
+  tracks 24
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
 # RomWBW 720K floppy media
 
 diskdef wbw_fd720
diff --git a/Source/HBIOS/Build.cmd b/Source/HBIOS/Build.cmd
index fc75f4e6..80a6951a 100644
--- a/Source/HBIOS/Build.cmd
+++ b/Source/HBIOS/Build.cmd
@@ -135,7 +135,7 @@ if %ROMSize% gtr 0 (
     copy /b hbios_rom.bin + osimg.bin + osimg1.bin + osimg2.bin %ROMName%.upd || exit /b
     copy /b hbios_app.bin + osimg_small.bin %ROMName%.com || exit /b
 ) else (
-    copy /b hbios_rom.bin + osimg.bin + osimg1.bin + osimg2.bin %ROMName%.rom || exit /b
+    copy /b hbios_rom.bin + osimg.bin + osimg1.bin + osimg2.bin  + ..\RomDsk\ram%ROMSize%_wbw.dat %ROMName%.rom || exit /b
     copy /b hbios_rom.bin + osimg.bin + osimg1.bin + osimg2.bin %ROMName%.upd || exit /b
     copy /b hbios_app.bin + osimg_small.bin %ROMName%.com || exit /b
 )
diff --git a/Source/HBIOS/Config/RCZ80_zrc_ram.asm b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
index 5a5c919f..b520fba1 100644
--- a/Source/HBIOS/Config/RCZ80_zrc_ram.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
@@ -34,7 +34,7 @@ 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	2048		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+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]
 ;
diff --git a/Source/HBIOS/hbios_env.asm b/Source/HBIOS/hbios_env.asm
index 92b81ca3..df792dae 100644
--- a/Source/HBIOS/hbios_env.asm
+++ b/Source/HBIOS/hbios_env.asm
@@ -24,7 +24,11 @@
 ;
 ; Print all desired config values...
 ;
+#if (ROMSIZE > 0)
 	prtval("ROMSIZE$", ROMSIZE)
+#else
+	prtval("ROMSIZE$", RAMSIZE)
+#endif
 	prtval("CPUFAM$", CPUFAM)
 ;
 	ret
diff --git a/Source/Images/diskdefs b/Source/Images/diskdefs
index 81d962cc..f29deca1 100644
--- a/Source/Images/diskdefs
+++ b/Source/Images/diskdefs
@@ -310,6 +310,32 @@ diskdef wbw_rom1024
   os 2.2
 end
 
+# RomWBW 512KB RAM (256KB reserved, 256KB RAM Disk)
+
+diskdef wbw_ram512
+  seclen 512
+  tracks 8
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
+# RomWBW 1024KB RAM (256KB reserved, 768KB RAM Disk)
+
+diskdef wbw_ram1024
+  seclen 512
+  tracks 24
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
 # RomWBW 720K floppy media
 
 diskdef wbw_fd720
diff --git a/Source/RomDsk/Build.cmd b/Source/RomDsk/Build.cmd
index a13f1a2f..876767b6 100644
--- a/Source/RomDsk/Build.cmd
+++ b/Source/RomDsk/Build.cmd
@@ -31,24 +31,29 @@ copy NUL rom128_una.dat
 
 set RomApps=%RomApps1%
 
-call :MakeDisk rom256_wbw 256 0x20000 wbw
-call :MakeDisk rom256_una 256 0x20000 una
+call :MakeDisk rom256_wbw wbw_rom256 ROM_256KB 0x20000 wbw
+call :MakeDisk rom256_una wbw_rom256 ROM_256KB 0x20000 una
 
 set RomApps=%RomApps1% %RomApps2%
 
-call :MakeDisk rom512_wbw 512 0x60000 wbw
-call :MakeDisk rom512_una 512 0x60000 una
+call :MakeDisk rom512_wbw wbw_rom512 ROM_512KB 0x60000 wbw
+call :MakeDisk rom512_una wbw_rom512 ROM_512KB 0x60000 una
 
-call :MakeDisk rom1024_wbw 1024 0xE0000 wbw
-call :MakeDisk rom1024_una 1024 0xE0000 una
+call :MakeDisk rom1024_wbw wbw_rom1024 ROM_1024KB 0xE0000 wbw
+call :MakeDisk rom1024_una wbw_rom1024 ROM_1024KB 0xE0000 una
+
+call :MakeDisk ram512_wbw wbw_ram512 RAM_512KB 0x40000 wbw
+
+call :MakeDisk ram1024_wbw wbw_ram1024 RAM_1024KB 0xC0000 wbw
 
 goto :eof
 
 :MakeDisk
 set Output=%1
-set RomSize=%2
-set ImgSize=%3
-set Bios=%4
+set DiskDef=%2
+set Dir=%3
+set ImgSize=%4
+set Bios=%5
 
 echo Making ROM Disk %Output%
 
@@ -56,12 +61,12 @@ echo Making ROM Disk %Output%
 srec_cat -Generate 0 %ImgSize% --Constant 0xE5 -Output %Output%.dat -Binary || exit /b
 
 :: Populate the disk image via cpmtools
-cpmcp -f wbw_rom%RomSize% %Output%.dat ROM_%RomSize%KB/*.* 0: || exit /b
-for %%f in (%RomApps%) do cpmcp -f wbw_rom%RomSize% %Output%.dat ../../Binary/Apps/%%f.com 0: || exit /b
-cpmcp -f wbw_rom%RomSize% %Output%.dat ..\cpm22\cpm_%Bios%.sys 0:cpm.sys || exit /b
-cpmcp -f wbw_rom%RomSize% %Output%.dat ..\zsdos\zsys_%Bios%.sys 0:zsys.sys || exit /b
+cpmcp -f %DiskDef% %Output%.dat %Dir%/*.* 0: || exit /b
+for %%f in (%RomApps%) do cpmcp -f %DiskDef% %Output%.dat ../../Binary/Apps/%%f.com 0: || exit /b
+cpmcp -f %DiskDef% %Output%.dat ..\cpm22\cpm_%Bios%.sys 0:cpm.sys || exit /b
+cpmcp -f %DiskDef% %Output%.dat ..\zsdos\zsys_%Bios%.sys 0:zsys.sys || exit /b
 
 :: Mark all disk files R/O for safety
-cpmchattr -f wbw_rom%RomSize% %Output%.dat r 0:*.* || exit /b
+cpmchattr -f %DiskDef% %Output%.dat r 0:*.* || exit /b
 
 goto :eof
diff --git a/Source/RomDsk/Makefile b/Source/RomDsk/Makefile
index 8d32a429..0a013cfe 100644
--- a/Source/RomDsk/Makefile
+++ b/Source/RomDsk/Makefile
@@ -1,4 +1,4 @@
-OBJECTS = rom128_wbw.dat rom128_una.dat rom256_wbw.dat rom256_una.dat rom512_wbw.dat rom512_una.dat rom1024_wbw.dat rom1024_una.dat
+OBJECTS = rom128_wbw.dat rom128_una.dat rom256_wbw.dat rom256_una.dat rom512_wbw.dat rom512_una.dat rom1024_wbw.dat rom1024_una.dat ram512_wbw.dat ram1024_wbw.dat
 OTHERS=*.dat
 
 TOOLS = ../../Tools
@@ -9,19 +9,34 @@ include $(TOOLS)/Makefile.inc
 ROMAPPS1 := assign mode rtc syscopy xm
 ROMAPPS2 := fdu format survey sysgen talk timer cpuspd
 
-rom256_%.dat: ROMSIZ=256
-rom512_%.dat: ROMSIZ=512
-rom1024_%.dat: ROMSIZ=1024
+# rom256_%.dat: ROMSIZ=256
+# rom512_%.dat: ROMSIZ=512
+# rom1024_%.dat: ROMSIZ=1024
+
+rom256_%.dat: DISKDEF=wbw_rom256
+rom512_%.dat: DISKDEF=wbw_rom512
+rom1024_%.dat: DISKDEF=wbw_rom1024
+ram512_%.dat: DISKDEF=wbw_ram512
+ram1024_%.dat: DISKDEF=wbw_ram1024
+
+rom256_%.dat: DIR=ROM_256KB
+rom512_%.dat: DIR=ROM_512KB
+rom1024_%.dat: DIR=ROM_1024KB
+ram512_%.dat: DIR=RAM_512KB
+ram1024_%.dat: DIR=RAM_1024KB
 
 rom256_%.dat: IMGSIZ=0x20000
 rom512_%.dat: IMGSIZ=0x60000
 rom1024_%.dat: IMGSIZ=0xE0000
+ram512_%.dat: IMGSIZ=0x40000
+ram1024_%.dat: IMGSIZ=0xC0000
 
 rom256_%.dat: ROMAPPS=$(ROMAPPS1)
 rom512_%.dat rom1024_%.dat: ROMAPPS=$(ROMAPPS1) $(ROMAPPS2)
+ram512_%.dat ram1024_%.dat: ROMAPPS=$(ROMAPPS1) $(ROMAPPS2)
 
-rom%_wbw.dat: BIOS=wbw
-rom%_una.dat: BIOS=una
+%_wbw.dat: BIOS=wbw
+%_una.dat: BIOS=una
 
 rom128_%.dat:
 	touch $@
@@ -29,8 +44,8 @@ rom128_%.dat:
 %.dat:
 	### Making ROM Disk $@
 	srec_cat -Generate 0 $(IMGSIZ) --Constant 0xE5 -Output $@ -Binary
-	$(CPMCP) -f wbw_rom$(ROMSIZ) $@ ROM_$(ROMSIZ)KB/*.* 0:
-	for i in $(ROMAPPS) ; do $(CPMCP) -f wbw_rom$(ROMSIZ) $@ ../../Binary/Apps/$$i.com 0: ; done
-	$(CPMCP) -f wbw_rom$(ROMSIZ) $@ ../CPM22/cpm_$(BIOS).sys 0:cpm.sys
-	$(CPMCP) -f wbw_rom$(ROMSIZ) $@ ../ZSDOS/zsys_$(BIOS).sys 0:zsys.sys
-	$(CPMCHATTR) -f wbw_rom$(ROMSIZ) $@ r 0:*.*
+	$(CPMCP) -f $(DISKDEF) $@ $(DIR)/*.* 0:
+	for i in $(ROMAPPS) ; do $(CPMCP) -f $(DISKDEF) $@ ../../Binary/Apps/$$i.com 0: ; done
+	$(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:*.*
diff --git a/Source/RomDsk/RAM_1024KB/ASM.COM b/Source/RomDsk/RAM_1024KB/ASM.COM
new file mode 100644
index 00000000..a63e5aec
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/ASM.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/CLOCKS.DAT b/Source/RomDsk/RAM_1024KB/CLOCKS.DAT
new file mode 100644
index 00000000..e64c7e05
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/CLOCKS.DAT differ
diff --git a/Source/RomDsk/RAM_1024KB/CLRDIR.COM b/Source/RomDsk/RAM_1024KB/CLRDIR.COM
new file mode 100644
index 00000000..ca65cbed
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/CLRDIR.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/COMPARE.COM b/Source/RomDsk/RAM_1024KB/COMPARE.COM
new file mode 100644
index 00000000..29fa41e6
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/COMPARE.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/COPY.CFG b/Source/RomDsk/RAM_1024KB/COPY.CFG
new file mode 100644
index 00000000..3d5310ac
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/COPY.CFG differ
diff --git a/Source/RomDsk/RAM_1024KB/COPY.COM b/Source/RomDsk/RAM_1024KB/COPY.COM
new file mode 100644
index 00000000..606c81a5
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/COPY.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/COPY.UPD b/Source/RomDsk/RAM_1024KB/COPY.UPD
new file mode 100644
index 00000000..3725b0e8
--- /dev/null
+++ b/Source/RomDsk/RAM_1024KB/COPY.UPD
@@ -0,0 +1,43 @@
+                                                        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/RomDsk/RAM_1024KB/CR.COM b/Source/RomDsk/RAM_1024KB/CR.COM
new file mode 100644
index 00000000..8a824bcc
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/CR.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DATSWEEP.COM b/Source/RomDsk/RAM_1024KB/DATSWEEP.COM
new file mode 100644
index 00000000..5d298c0b
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DATSWEEP.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DDT.COM b/Source/RomDsk/RAM_1024KB/DDT.COM
new file mode 100644
index 00000000..70e4ebfe
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DDT.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DDTZ.COM b/Source/RomDsk/RAM_1024KB/DDTZ.COM
new file mode 100644
index 00000000..4f6eca6b
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DDTZ.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DDTZ.DOC b/Source/RomDsk/RAM_1024KB/DDTZ.DOC
new file mode 100644
index 00000000..e4470528
--- /dev/null
+++ b/Source/RomDsk/RAM_1024KB/DDTZ.DOC
@@ -0,0 +1,564 @@
+
+                           DDTZ v2.7
+                       by C.B. Falconer
+                  edited by George A. Havach
+
+Introduction:
+============
+DDTZ v2.7 is a complete replacement for DDT,  Digital  Research's 
+famous Dynamic Debugging Tool,  with improved functionality,  bug 
+extermination,  and full Z80 support.  In general,  DDTZ is fully 
+compatible  with  the  original utility,  but it  has  extra  and 
+extended  commands  and  many  fewer  quirks.   All  Z80-specific 
+instructions can be (dis)assembled,  though in Intel rather  then 
+Zilog format. Furthermore, DDTZ will correctly trace ('T' and 'U' 
+commands) both 8080 and Z80 instructions,  depending on which CPU 
+is operating.  On startup,  the program announces which CPU it is 
+running on.
+
+DDTZ v2.7 now handles the 64180 added opcodes.  It does NOT  test 
+for  a  64180 CPU,  since this cannot be done  without  executing 
+illegal   Z80  instructions,   which  in  turn  will  crash  some 
+simulators.  However v2.7 does not execute any 64180 instructions 
+internally, only in the subject program.
+
+This  issue supplies the "M" version assembled,  to avoid  errors 
+when switching between MSDOS and CPM systems.   The command table 
+is updated accordingly.  Most CPM users are also MSDOS users, but 
+not vice-versa.
+
+The program is invoked by typing
+
+      ddtz<ret>
+or
+      ddtz [d:]filespec<ret>
+
+In  the  second  form,  DDTZ will load the  specified  file  into  
+memory starting at 0100H,  unless it's a .HEX file that sets  its 
+own  load  address.  Besides reporting the NEXT free address  and  
+the PC (program counter) after a successful load, DDTZ also shows 
+the number of memory pages needed for a SAVE.  Instead of  having 
+to write all this down,  just use the 'X' command at any time  to 
+redisplay these three values for the current application.
+
+NOTE:  loading  more  code above the NEXT pointer  revises  these 
+       values.
+
+As  in DDT,  when a program is loaded above the area holding  the 
+'A'  and  'U'  (and now 'W') command  code,  these  commands  are 
+disabled,  and the extra memory  is released to the user.   Thus,  
+DDTZ can occupy  as little as 3K total memory space.  Unlike DDT,  
+however,  DDTZ will not overwrite itself or the system on program 
+loads (except .HEX files).
+
+At initialization,  the stack pointer (SP) points to a return  to 
+DDTZ,  just like for the CCP. Thus, programs that normally return 
+to   the  CCP  will  be  returned  to  DDTZ.    The  'B'  command  
+reinitializes this condition.
+
+
+The intercept vector copies  the BDOS version number,   etc.,  so 
+an  object program  does not know that  DDTZ is running   (except 
+for BIOS-BDOS vector size). Thus, programs that check the version 
+number should execute correctly under DDTZ.
+
+All input parameters can now be entered in any of three formats:
+
+       (1) hexadecimal (as in DDT),
+       (2) decimal, by adding a leading '#' character,
+       (3) ASCII, by enclosing between either single or double
+           quotes; either one or two characters are allowed.
+
+Leading  blanks  in  command lines and parameters  are  absorbed. 
+Either  a  comma  or a (single) space   is   a  valid  delimiter.   
+Either uppercase or lowercase input is accepted.
+
+The  default command  (for anything  not otherwise  recognizable)  
+is 'H'.  This allows convenient calculation, along with the other 
+features described below.   So,  to convert a number,  just enter 
+it!
+
+As  in  DDT,   the prompt character is '-',  and the  only  error 
+message  is  the query ('?'),  which generally kicks you back  to 
+command mode. 
+
+New Commands (Over DDT):
+=======================
+
+NOTE: letters in parenthesis,  e.g.  "(U)",  show the  equivalent 
+      command for DDTZM version (compatible with MSDOS debug).
+
+   @  Sets  or  shows (with no parameter)  the internally  stored 
+      "base" value.   Also used with the 'S' and 'D' commands  as 
+      an optional parameter  (though without the '@')  to display 
+      memory  from an arbitrary base marker (offset). When set to 
+      zero (the default), it does not affect any screen displays.
+
+   B  B)egin: resets the USER stack pointer to its initial value, 
+      such  that any program that exits by an RET will return  to 
+      DDTZ.   DDTZ   provides    a  default   stack   space    of 
+      approximately 24 bytes for user programs.
+
+   C  C)ompare first_address,last_address,against_address:  shows 
+      all  the byte differences between two memory areas,  in the 
+      format
+
+       XXXX aa YYYY bb
+
+      where  XXXX and YYYY  are the comparative memory addresses, 
+      and aa  and  bb  are the corresponding byte values.  Can be 
+      used  to  verify   the identity  of  two  files   by  first 
+      loading  them   into  different memory areas with  the  'R' 
+      command (see below).
+
+
+   W  Write:   stores the modified memory area to disk under  the 
+  (K) filename  specified  by the 'I'  command,  overwriting  the 
+      original file from which it was loaded (the user is queried 
+      before  doing  so).  By default,  the image of memory  from 
+      0100H through the "NEXT" value -1 is saved.  "K first_addr, 
+      last_address"  overrides this and allows writing ANY memory 
+      area to a file. Almost a necessity for CPM 3.0 (no SAVE!).
+      K)eep on DDTZ
+
+   X  eXamine:  redisplays the "NEXT PC SAVE" report at any time.
+  (Q) Q)uery size on DDTZ.
+
+   S  S)earch  first_address,   last_addr,  value:  searches  the 
+  (W) specified memory area for the value (a 16-bit word,  not  a 
+      byte) and shows the locations of all such.  Very useful for 
+      finding  CALL's  or JMP's to a particular address, etc.
+      W)here on DDTZ
+
+   Y  Y)our_option  parm1,parm2,address:  executes  an  arbitrary 
+      routine  at  the  specified address,   with the BC  and  DE 
+      registers  set to parm1 and parm2, respectively.
+
+   Z  Displays (but does not alter) the Z80's alternate  register 
+      set,  including the index registers (disabled if running on 
+      an  8080).  On Z80's,   automatically included  as the last 
+      part of the display by the 'X' command.
+
+
+Based (Offset) Displays:
+=======================
+ 
+The  'D' and 'E' commands  can use a stored base value  (offset),  
+as  set  by   the  '@' command.   The current  @  value   may  be 
+overridden for a single execution of these commands by adding the 
+base as an extra parameter  in the command line.   The effect  is  
+to  add  this  value   to  the  first/last  address  and  display 
+accordingly.  The address listing on the left becomes  XXXX:YYYY,  
+where  XXXX  is the offset address and YYYY is the actual  memory 
+address being displayed.   For example,  if you have a data  area  
+located at  42B7H  and wish to  preserve easy access,  just enter 
+"@42b7".  Now, "d0,3f" will dump memory starting at 4237H.
+
+
+Further Changes from DDT:
+========================
+
+   A  A)ssemble  now  accepts   the  full Z80  as  well  as  8080 
+      instruction  set,  although it expects them in Intel rather 
+      than  Zilog  format  (see  notes  below   under   the   'L' 
+      command).    When in doubt, see the mnemnonic list below.
+
+   D  D)isplay or D)ump  will accept  an optional third parameter  
+      to  set the base value for a single execution only.  Format 
+      has been cleaned up.
+
+   H  H)ex_arithmetic    on   two  values   also   shows    their 
+      difference  in decimal.  With only one value,  converts  to 
+      hexadecimal, decimal, and ASCII (low-order byte only).
+
+
+   N  N)ame  now allows drive specification  (d:...)  and sets up 
+  (I) the  complete  command  line,   including  both  FCB's  (at 
+      addresses 005CH and 006CH).   The tail (stored at 0081H up) 
+      is NOT upshifted.
+      I)nput on DDTZ
+
+   U  U)nassemble now displays the raw hexcode,  especially handy 
+  (L) when examining non-code areas. Intel (8080 style) mnemonics 
+      are  used,  so  some  disassembled  instructions  may  look 
+      strange.  E.g., the Z80's 'IN B,(C)' and 'OUT (C),B' become  
+      'INP B' and 'OUTP B', respectively;  'LD (nnnn),BC' becomes 
+      'SBCD nnnn',  'ADD IX,  BC' becomes 'DADX B', and 'JP (IX)' 
+      becomes 'PCIX'. 
+      L)ist on DDTZ
+
+   L  L)oad   now  permits  loading a file into memory   with  an 
+  (R) offset,  which  is  added to the default  load  address  of 
+      0100H.   When reading in  a .HEX file  with  a preset bias,  
+      the   'R'  command will not transfer control to an  invalid 
+      execution point.  Another execution of the 'R' command will 
+      reread the input file, e.g.:
+
+         n blah<ret>
+         l<ret>
+         ...modify the code and generally mess about...
+         l<ret>
+
+      The original file  is reloaded,  and the modifications  are 
+      removed.
+      R)ead on DDTZ
+
+   E  E)nter,  like  D)isplay,  now  accepts an  optional  second 
+  (S) parameter  to  set the base value for  a  single  execution 
+      only.
+      S)ubstitute or S)et on DDTZ
+
+   T  T)rap/trace   on  termination  now shows  the complete  CPU 
+      state. Traps and traces no longer lock up  when  a user RST 
+      7 instruction is executed.   Tracing of BDOS/BIOS calls  is 
+      heavily trun cated,  avoiding clutter and preventing system 
+      crashes.
+
+NOTE: Most of the UNDOCUMENTED Z80 op-codes are handled.  Others
+      can crash the system.
+
+   R  R)egisters  also shows what two-byte values the HL  and  SP 
+  (X) registers are actually pointing to.  On Z80's, displays the 
+      alternate register set.
+      eX)amine on DDTZ
+
+NOTE: Any  use  of the 'W' or 'L' command  resets the system  DMA 
+      transfer address to the standard default value of 0080H.
+
+
+; This is the output of DDTZ when disassembling OPTYPE.TRY
+NOP                     LDA     06A4            MOV     M,H
+LXI     B,06A4          DCX     SP              MOV     M,L
+STAX    B               INR     A               HLT        
+INX     B               DCR     A               MOV     M,A
+INR     B               MVI     A,20            MOV     A,B
+DCR     B               CMC                     MOV     A,C
+MVI     B,20            MOV     B,B             MOV     A,D
+RLC                     MOV     B,C             MOV     A,E
+EXAF                    MOV     B,D             MOV     A,H
+DAD     B               MOV     B,E             MOV     A,L
+LDAX    B               MOV     B,H             MOV     A,M
+DCX     B               MOV     B,L             MOV     A,A
+INR     C               MOV     B,M             ADD     B  
+DCR     C               MOV     B,A             ADD     C  
+MVI     C,20            MOV     C,B             ADD     D  
+RRC                     MOV     C,C             ADD     E  
+DJNZ    0134            MOV     C,D             ADD     H  
+LXI     D,06A4          MOV     C,E             ADD     L  
+STAX    D               MOV     C,H             ADD     M  
+INX     D               MOV     C,L             ADD     A  
+INR     D               MOV     C,M             ADC     B  
+DCR     D               MOV     C,A             ADC     C  
+MVI     D,20            MOV     D,B             ADC     D  
+RAL                     MOV     D,C             ADC     E  
+JR      0134            MOV     D,D             ADC     H  
+DAD     D               MOV     D,E             ADC     L  
+LDAX    D               MOV     D,H             ADC     M  
+DCX     D               MOV     D,L             ADC     A  
+INR     E               MOV     D,M             SUB     B  
+DCR     E               MOV     D,A             SUB     C  
+MVI     E,20            MOV     E,B             SUB     D  
+RAR                     MOV     E,C             SUB     E  
+JRNZ    0134            MOV     E,D             SUB     H  
+LXI     H,06A4          MOV     E,E             SUB     L  
+SHLD    06A4            MOV     E,H             SUB     M  
+INX     H               MOV     E,L             SUB     A  
+INR     H               MOV     E,M             SBB     B  
+DCR     H               MOV     E,A             SBB     C  
+MVI     H,20            MOV     H,B             SBB     D  
+DAA                     MOV     H,C             SBB     E  
+JRZ     0134            MOV     H,D             SBB     H  
+DAD     H               MOV     H,E             SBB     L  
+LHLD    06A4            MOV     H,H             SBB     M  
+DCX     H               MOV     H,L             SBB     A  
+INR     L               MOV     H,M             ANA     B  
+DCR     L               MOV     H,A             ANA     C  
+MVI     L,20            MOV     L,B             ANA     D  
+CMA                     MOV     L,C             ANA     E  
+JRNC    0134            MOV     L,D             ANA     H  
+LXI     SP,06A4         MOV     L,E             ANA     L  
+STA     06A4            MOV     L,H             ANA     M  
+INX     SP              MOV     L,L             ANA     A  
+INR     M               MOV     L,M             XRA     B  
+DCR     M               MOV     L,A             XRA     C  
+MVI     M,20            MOV     M,B             XRA     D  
+STC                     MOV     M,C             XRA     E  
+JRC     0134            MOV     M,D             XRA     H  
+DAD     SP              MOV     M,E             XRA     L  
+
+
+XRA     M               JPE     06A4            SLAR     M  
+XRA     A               XCHG                    SLAR     A  
+ORA     B               CPE     06A4            SRAR     B  
+ORA     C               XRI     20              SRAR     C  
+ORA     D               RST     5               SRAR     D  
+ORA     E               RP                      SRAR     E  
+ORA     H               POP     PSW             SRAR     H  
+ORA     L               JP      06A4            SRAR     L  
+ORA     M               DI                      SRAR     M  
+ORA     A               CP      06A4            SRAR     A  
+CMP     B               PUSH    PSW             SLLR     B  
+CMP     C               ORI     20              SLLR     C  
+CMP     D               RST     6               SLLR     D  
+CMP     E               RM                      SLLR     E  
+CMP     H               SPHL                    SLLR     H  
+CMP     L               JM      06A4            SLLR     L  
+CMP     M               EI                      SLLR     M  
+CMP     A               CM      06A4            SLLR     A  
+RNZ                     CPI     20              SRLR     B  
+POP     B               RST     7               SRLR     C  
+JNZ     06A4            RLCR    B               SRLR     D  
+JMP     06A4            RLCR    C               SRLR     E  
+CNZ     06A4            RLCR    D               SRLR     H  
+PUSH    B               RLCR    E               SRLR     L  
+ADI     20              RLCR    H               SRLR     M  
+RST     0               RLCR    L               SRLR     A  
+RZ                      RLCR    M               BIT     0,B
+RET                     RLCR    A               BIT     0,C
+JZ      06A4            RRCR    B               BIT     0,D
+CZ      06A4            RRCR    C               BIT     0,E
+CALL    06A4            RRCR    D               BIT     0,H
+ACI     20              RRCR    E               BIT     0,L
+RST     1               RRCR    H               BIT     0,M
+RNC                     RRCR    L               BIT     0,A
+POP     D               RRCR    M               BIT     1,B
+JNC     06A4            RRCR    A               BIT     1,C
+OUT     20              RALR    B               BIT     1,D
+CNC     06A4            RALR    C               BIT     1,E
+PUSH    D               RALR    D               BIT     1,H
+SUI     20              RALR    E               BIT     1,L
+RST     2               RALR    H               BIT     1,M
+RC                      RALR    L               BIT     1,A
+EXX                     RALR    M               BIT     2,B
+JC      06A4            RALR    A               BIT     2,C
+IN      20              RARR    B               BIT     2,D
+CC      06A4            RARR    C               BIT     2,E
+SBI     20              RARR    D               BIT     2,H
+RST     3               RARR    E               BIT     2,L
+RPO                     RARR    H               BIT     2,M
+POP     H               RARR    L               BIT     2,A
+JPO     06A4            RARR    M               BIT     3,B
+XTHL                    RARR    A               BIT     3,C
+CPO     06A4            SLAR    B               BIT     3,D
+PUSH    H               SLAR    C               BIT     3,E
+ANI     20              SLAR    D               BIT     3,H
+RST     4               SLAR    E               BIT     3,L
+RPE                     SLAR    H               BIT     3,M
+PCHL                    SLAR    L               BIT     3,A
+
+
+BIT     4,B             RES     3,D             SET     2,H      
+BIT     4,C             RES     3,E             SET     2,L      
+BIT     4,D             RES     3,H             SET     2,M      
+BIT     4,E             RES     3,L             SET     2,A      
+BIT     4,H             RES     3,M             SET     3,B      
+BIT     4,L             RES     3,A             SET     3,C      
+BIT     4,M             RES     4,B             SET     3,D      
+BIT     4,A             RES     4,C             SET     3,E      
+BIT     5,B             RES     4,D             SET     3,H      
+BIT     5,C             RES     4,E             SET     3,L      
+BIT     5,D             RES     4,H             SET     3,M      
+BIT     5,E             RES     4,L             SET     3,A      
+BIT     5,H             RES     4,M             SET     4,B      
+BIT     5,L             RES     4,A             SET     4,C      
+BIT     5,M             RES     5,B             SET     4,D      
+BIT     5,A             RES     5,C             SET     4,E      
+BIT     6,B             RES     5,D             SET     4,H      
+BIT     6,C             RES     5,E             SET     4,L      
+BIT     6,D             RES     5,H             SET     4,M      
+BIT     6,E             RES     5,L             SET     4,A      
+BIT     6,H             RES     5,M             SET     5,B      
+BIT     6,L             RES     5,A             SET     5,C      
+BIT     6,M             RES     6,B             SET     5,D      
+BIT     6,A             RES     6,C             SET     5,E      
+BIT     7,B             RES     6,D             SET     5,H      
+BIT     7,C             RES     6,E             SET     5,L      
+BIT     7,D             RES     6,H             SET     5,M      
+BIT     7,E             RES     6,L             SET     5,A      
+BIT     7,H             RES     6,M             SET     6,B      
+BIT     7,L             RES     6,A             SET     6,C      
+BIT     7,M             RES     7,B             SET     6,D      
+BIT     7,A             RES     7,C             SET     6,E      
+RES     0,B             RES     7,D             SET     6,H      
+RES     0,C             RES     7,E             SET     6,L      
+RES     0,D             RES     7,H             SET     6,M      
+RES     0,E             RES     7,L             SET     6,A      
+RES     0,H             RES     7,M             SET     7,B      
+RES     0,L             RES     7,A             SET     7,C      
+RES     0,M             SET     0,B             SET     7,D      
+RES     0,A             SET     0,C             SET     7,E      
+RES     1,B             SET     0,D             SET     7,H      
+RES     1,C             SET     0,E             SET     7,L      
+RES     1,D             SET     0,H             SET     7,M      
+RES     1,E             SET     0,L             SET     7,A      
+RES     1,H             SET     0,M             DADX    B        
+RES     1,L             SET     0,A             DADX    D        
+RES     1,M             SET     1,B             LXI     X,06A4   
+RES     1,A             SET     1,C             SIXD    06A4     
+RES     2,B             SET     1,D             INX     X        
+RES     2,C             SET     1,E             DADX    X        
+RES     2,D             SET     1,H             LIXD    06A4     
+RES     2,E             SET     1,L             DCX     X        
+RES     2,H             SET     1,M             INR     [X+05]   
+RES     2,L             SET     1,A             DCR     [X+05]   
+RES     2,M             SET     2,B             MVI     [X+05],20
+RES     2,A             SET     2,C             DADX    SP       
+RES     3,B             SET     2,D             MOV     B,[X+05] 
+RES     3,C             SET     2,E             MOV     C,[X+05] 
+
+
+MOV     D,[X+05]        DSBC    B               DADY    B       
+MOV     E,[X+05]        SBCD    06A4            DADY    D       
+MOV     H,[X+05]        NEG                     LXI     Y,06A4  
+MOV     L,[X+05]        RETN                    SIYD    06A4    
+MOV     [X+05],B        IM0                     INX     Y       
+MOV     [X+05],C        LDIA                    DADY    Y       
+MOV     [X+05],D        INP     C               LIYD    06A4    
+MOV     [X+05],E        OUTP    C               DCX     Y       
+MOV     [X+05],H        DADC    B               INR     [Y+05]  
+MOV     [X+05],L        LBCD    06A4            DCR     [Y+05]  
+MOV     [X+05],A        RETI                    MVI     [Y+05],2
+MOV     A,[X+05]        LDRA                    DADY    SP      
+ADD     [X+05]          INP     D               MOV     B,[Y+05]
+ADC     [X+05]          OUTP    D               MOV     C,[Y+05]
+SUB     [X+05]          DSBC    D               MOV     D,[Y+05]
+SBB     [X+05]          SDED    06A4            MOV     E,[Y+05]
+ANA     [X+05]          IM1                     MOV     H,[Y+05]
+XRA     [X+05]          LDAI                    MOV     L,[Y+05]
+ORA     [X+05]          INP     E               MOV     [Y+05],B
+CMP     [X+05]          OUTP    E               MOV     [Y+05],C
+POP     X               DADC    D               MOV     [Y+05],D
+XTIX                    LDED    06A4            MOV     [Y+05],E
+PUSH    X               IM2                     MOV     [Y+05],H
+PCIX                    LDAR                    MOV     [Y+05],L
+SPIX                    INP     H               MOV     [Y+05],A
+RLCR    [X+05]          OUTP    H               MOV     A,[Y+05]
+RRCR    [X+05]          DSBC    H               ADD     [Y+05]  
+RALR    [X+05]          shld    06A4            ADC     [Y+05]  
+RARR    [X+05]          RRD                     SUB     [Y+05]  
+SLAR    [X+05]          INP     L               SBB     [Y+05]  
+SRAR    [X+05]          OUTP    L               ANA     [Y+05]  
+SRLR    [X+05]          DADC    H               XRA     [Y+05]  
+BIT     0,[X+05]        lhld    06A4            ORA     [Y+05]  
+BIT     1,[X+05]        RLD                     CMP     [Y+05]  
+BIT     2,[X+05]        INP     M               POP     Y       
+BIT     3,[X+05]        OUTP    M               XTIY            
+BIT     4,[X+05]        DSBC    SP              PUSH    Y       
+BIT     5,[X+05]        SSPD    06A4            PCIY            
+BIT     6,[X+05]        INP     A               SPIY            
+BIT     7,[X+05]        OUTP    A               RLCR    [Y+05]  
+RES     0,[X+05]        DADC    SP              RRCR    [Y+05]  
+RES     1,[X+05]        LSPD    06A4            RALR    [Y+05]  
+RES     2,[X+05]        LDI                     RARR    [Y+05]  
+RES     3,[X+05]        CCI                     SLAR    [Y+05]  
+RES     4,[X+05]        INI                     SRAR    [Y+05]  
+RES     5,[X+05]        OTI                     SRLR    [Y+05]  
+RES     6,[X+05]        LDD                     BIT     0,[Y+05]
+RES     7,[X+05]        CCD                     BIT     1,[Y+05]
+SET     0,[X+05]        IND                     BIT     2,[Y+05]
+SET     1,[X+05]        OTD                     BIT     3,[Y+05]
+SET     2,[X+05]        LDIR                    BIT     4,[Y+05]
+SET     3,[X+05]        CCIR                    BIT     5,[Y+05]
+SET     4,[X+05]        INIR                    BIT     6,[Y+05]
+SET     5,[X+05]        OTIR                    BIT     7,[Y+05]
+SET     6,[X+05]        LDDR                    RES     0,[Y+05]
+SET     7,[X+05]        CCDR                    RES     1,[Y+05]
+INP     B               INDR                    RES     2,[Y+05]
+OUTP    B               OTDR                    RES     3,[Y+05]
+
+
+RES     4,[Y+05]        SET     0,[Y+05]        SET     4,[Y+05]
+RES     5,[Y+05]        SET     1,[Y+05]        SET     5,[Y+05]
+RES     6,[Y+05]        SET     2,[Y+05]        SET     6,[Y+05]
+RES     7,[Y+05]        SET     3,[Y+05]        SET     7,[Y+05]
+
+; These are the result of disassembling 64180OPS.TRY
+; These opcodes are available ONLY on the 64180 CPU
+; DDTZ will both assemble and disassemble these.
+IN0     B,20            TST     E               MLT     B 
+OUT0    20,B            IN0     H,20            MLT     D 
+TST     B               OUT0    20,H            TSTI    20
+IN0     C,20            TST     H               MLT     H 
+OUT0    20,C            IN0     L,20            TSIO    20
+TST     C               OUT0    20,L            SLP       
+IN0     D,20            TST     L               MLT     SP
+OUT0    20,D            TST     M               OTIM      
+TST     D               IN0     A,20            OTDM      
+IN0     E,20            OUT0    20,A            OIMR      
+OUT0    20,E            TST     A               ODMR      
+
+; The following are UNDOCUMENTED z80 opcodes from XTDOPS.TRY.
+; DDTZ will disassemble these, but will not assemble them.
+; They use xh/xl (or yh/yl) as separate byte registers.
+; Use these at your own risk.
+INRX    H               ACXR    H               MOVY    H,B  
+DCRX    H               ACXR    L               MOVY    H,C  
+MVIX    H,20            SUXR    H               MOVY    H,D  
+INRX    L               SUXR    L               MOVY    H,E  
+DCRX    L               SBXR    H               MOVY    H,A  
+MVIX    L,20            SBXR    L               MOVY    L,B  
+MOVX    B,H             NDXR    H               MOVY    L,C  
+MOVX    B,L             NDXR    L               MOVY    L,D  
+MOVX    C,H             XRXR    H               MOVY    L,E  
+MOVX    C,L             XRXR    L               MOVY    L,A  
+MOVX    D,H             ORXR    H               MOVY    A,H  
+MOVX    D,L             ORXR    L               MOVY    A,L  
+MOVX    E,H             CPXR    H               ADYR    H    
+MOVX    E,L             CPXR    L               ADYR    L    
+MOVX    H,B             INRY    H               ACYR    H    
+MOVX    H,C             DCRY    H               ACYR    L    
+MOVX    H,D             MVIY    H,20            SUYR    H    
+MOVX    H,E             INRY    L               SUYR    L    
+MOVX    H,A             DCRY    L               SBYR    H    
+MOVX    L,B             MVIY    L,20            SBYR    L    
+MOVX    L,C             MOVY    B,H             NDYR    H    
+MOVX    L,D             MOVY    B,L             NDYR    L    
+MOVX    L,E             MOVY    C,H             XRYR    H    
+MOVX    L,A             MOVY    C,L             XRYR    L    
+MOVX    A,H             MOVY    D,H             ORYR    H    
+MOVX    A,L             MOVY    D,L             ORYR    L    
+ADXR    H               MOVY    E,H             CPYR    H    
+ADXR    L               MOVY    E,L             CPYR    L    
+
+
+Command Summary:
+===============
+
+DDTZM command                                         DDTZ command
+=============                                         ============
+@ (base)
+A)ssemble first_address                                  A
+B)egin {i.e., initialize stack and return}               B
+C)ompare first_address,last_address,against_address      C
+D)ump first_address[,last_address[,base]]                D
+E)nter_in_memory first_address[,base]                    S)ubstitute
+F)ill first_address,last_address,value                   F
+G)o_to [address][,trap1[,trap2]]                         G
+H)ex_arithmetic value1(,value2)                          H
+L)oad_file (offset)                                      R)ead
+M)ove first_address,last_address,destination             M
+N)nput FCBs_command_line                                 I)nput
+Q)uit                                                    (not avail)
+R)egister examine/change [register|flag]                 X)amine
+S)earch first_address,last_address,word                  W)hereis
+T)race_execution [count]                                 T
+        Untrace_execution [count] (i.e. do count instr)  U)ntrace
+U)nassemble_code first_address[,last_address]            L)ist code
+W)rite [first_address,last_address]                      K)eep
+X)amine {i.e. display memory parameters for application} Q)uery
+Y)our_option BC:=parm1,DE:=parm2,call_address            Y
+Z)80_register_display                                    Z
+
+
+If you find this program useful, contributions will be gratefully
+accepted and will encourage further development and release of
+useful CPM programs.  My practice is to include source.
+
+C.B. Falconer
+680 Hartford Turnpike,
+Hamden, Conn. 06517           (203) 281-1438
+
+DDTZ and its associated documentation and other files are
+copyright (c) 1980-1988 by C.B. Falconer.  They may be freely
+copied and used for non-commercial purposes ONLY.
+
diff --git a/Source/RomDsk/RAM_1024KB/DIRX.COM b/Source/RomDsk/RAM_1024KB/DIRX.COM
new file mode 100644
index 00000000..413bceca
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DIRX.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DSCONFIG.COM b/Source/RomDsk/RAM_1024KB/DSCONFIG.COM
new file mode 100644
index 00000000..b77dd008
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DSCONFIG.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/DUMP.COM b/Source/RomDsk/RAM_1024KB/DUMP.COM
new file mode 100644
index 00000000..03a77c3c
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/DUMP.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/ED.COM b/Source/RomDsk/RAM_1024KB/ED.COM
new file mode 100644
index 00000000..a0f0f541
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/ED.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/EX.COM b/Source/RomDsk/RAM_1024KB/EX.COM
new file mode 100644
index 00000000..49cb0b81
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/EX.COM differ
diff --git a/Source/RomDsk/RAM_1024KB/FA16.CFG b/Source/RomDsk/RAM_1024KB/FA16.CFG
new file mode 100644
index 00000000..b7974d36
Binary files /dev/null and b/Source/RomDsk/RAM_1024KB/FA16.CFG differ
diff --git a/Source/RomDsk/RAM_1024KB/FA16.DOC b/Source/RomDsk/RAM_1024KB/FA16.DOC
new file mode 100644
index 00000000..08b46875
--- /dev/null
+++ b/Source/RomDsk/RAM_1024KB/FA16.DOC
@@ -0,0 +1,264 @@
+
+                            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/RomDsk/RAM_1024KB/FA16A.FOR b/Source/RomDsk/RAM_1024KB/FA16A.FOR
new file mode 100644
index 00000000..e9ed3d43
--- /dev/null
+++ b/Source/RomDsk/RAM_1024KB/FA16A.FOR
@@ -0,0 +1,6 @@
+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/RomDsk/RAM_1024KB/FA16CFG.TXT b/Source/RomDsk/RAM_1024KB/FA16CFG.TXT
new file mode 100644
index 00000000..4067b9ba
--- /dev/null
+++ b/Source/RomDsk/RAM_1024KB/FA16CFG.TXT
@@ -0,0 +1,39 @@
+
+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/RomDsk/RAM_1024KB/FAT.COM b/Source/RomDsk/RAM_1024KB/FAT.COM
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index 00000000..688faa99
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diff --git a/Source/RomDsk/RAM_1024KB/FDISK80.COM b/Source/RomDsk/RAM_1024KB/FDISK80.COM
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index 00000000..2a565dae
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diff --git a/Source/RomDsk/RAM_1024KB/FILEATTR.COM b/Source/RomDsk/RAM_1024KB/FILEATTR.COM
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index 00000000..4527d090
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diff --git a/Source/RomDsk/RAM_1024KB/FILEDATE.CFG b/Source/RomDsk/RAM_1024KB/FILEDATE.CFG
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index 00000000..da1ca45f
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index 00000000..11b83616
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diff --git a/Source/RomDsk/RAM_1024KB/FLASH.COM b/Source/RomDsk/RAM_1024KB/FLASH.COM
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index 00000000..d1833a1b
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diff --git a/Source/RomDsk/RAM_1024KB/INITDIR.CFG b/Source/RomDsk/RAM_1024KB/INITDIR.CFG
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index 00000000..96baa986
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index 00000000..fd46387a
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diff --git a/Source/RomDsk/RAM_1024KB/LBREXT.COM b/Source/RomDsk/RAM_1024KB/LBREXT.COM
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index 00000000..c0c950e3
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diff --git a/Source/RomDsk/RAM_1024KB/LDDS.COM b/Source/RomDsk/RAM_1024KB/LDDS.COM
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index 00000000..357f1360
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diff --git a/Source/RomDsk/RAM_1024KB/LDNZT.COM b/Source/RomDsk/RAM_1024KB/LDNZT.COM
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index 00000000..87cf0b47
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diff --git a/Source/RomDsk/RAM_1024KB/LDP2D.COM b/Source/RomDsk/RAM_1024KB/LDP2D.COM
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index 00000000..a89e03d8
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diff --git a/Source/RomDsk/RAM_1024KB/LIB.COM b/Source/RomDsk/RAM_1024KB/LIB.COM
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index 00000000..45d7fb21
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diff --git a/Source/RomDsk/RAM_1024KB/LINK.COM b/Source/RomDsk/RAM_1024KB/LINK.COM
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index 00000000..e188fb92
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diff --git a/Source/RomDsk/RAM_1024KB/LOAD.COM b/Source/RomDsk/RAM_1024KB/LOAD.COM
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index 00000000..b9601e00
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diff --git a/Source/RomDsk/RAM_1024KB/MAC.COM b/Source/RomDsk/RAM_1024KB/MAC.COM
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index 00000000..f49e835a
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diff --git a/Source/RomDsk/RAM_1024KB/MBASIC.COM b/Source/RomDsk/RAM_1024KB/MBASIC.COM
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index 00000000..c9ec3cd3
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diff --git a/Source/RomDsk/RAM_1024KB/NULU.COM b/Source/RomDsk/RAM_1024KB/NULU.COM
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index 00000000..fc5594b1
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diff --git a/Source/RomDsk/RAM_1024KB/PIP.COM b/Source/RomDsk/RAM_1024KB/PIP.COM
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index 00000000..4b2ce4b6
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diff --git a/Source/RomDsk/RAM_1024KB/PMARC.COM b/Source/RomDsk/RAM_1024KB/PMARC.COM
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index 00000000..59bd3ef3
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diff --git a/Source/RomDsk/RAM_1024KB/PMEXT.COM b/Source/RomDsk/RAM_1024KB/PMEXT.COM
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index 00000000..d3a51ca3
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diff --git a/Source/RomDsk/RAM_1024KB/PUTBG.COM b/Source/RomDsk/RAM_1024KB/PUTBG.COM
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index 00000000..970e2d8a
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diff --git a/Source/RomDsk/RAM_1024KB/PUTDS.COM b/Source/RomDsk/RAM_1024KB/PUTDS.COM
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index 00000000..c0ceba64
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diff --git a/Source/RomDsk/RAM_1024KB/RELOG.COM b/Source/RomDsk/RAM_1024KB/RELOG.COM
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index 00000000..13ffc62e
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diff --git a/Source/RomDsk/RAM_1024KB/RMAC.COM b/Source/RomDsk/RAM_1024KB/RMAC.COM
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index 00000000..9ab7206b
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diff --git a/Source/RomDsk/RAM_1024KB/RMXSUB1.COM b/Source/RomDsk/RAM_1024KB/RMXSUB1.COM
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index 00000000..34078336
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diff --git a/Source/RomDsk/RAM_1024KB/SETTERM.COM b/Source/RomDsk/RAM_1024KB/SETTERM.COM
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index 00000000..eca19bf9
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diff --git a/Source/RomDsk/RAM_1024KB/SETUPZST.COM b/Source/RomDsk/RAM_1024KB/SETUPZST.COM
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index 00000000..35e4b589
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diff --git a/Source/RomDsk/RAM_1024KB/STAMPS.DAT b/Source/RomDsk/RAM_1024KB/STAMPS.DAT
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index 00000000..a312ae58
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diff --git a/Source/RomDsk/RAM_1024KB/STAT.COM b/Source/RomDsk/RAM_1024KB/STAT.COM
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diff --git a/Source/RomDsk/RAM_1024KB/SUBMIT.COM b/Source/RomDsk/RAM_1024KB/SUBMIT.COM
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diff --git a/Source/RomDsk/RAM_1024KB/SUPERSUB.COM b/Source/RomDsk/RAM_1024KB/SUPERSUB.COM
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diff --git a/Source/RomDsk/RAM_1024KB/TD.CFG b/Source/RomDsk/RAM_1024KB/TD.CFG
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index 00000000..ab44bab9
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index 00000000..552aba67
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diff --git a/Source/RomDsk/RAM_1024KB/TERMBASE.DAT b/Source/RomDsk/RAM_1024KB/TERMBASE.DAT
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diff --git a/Source/RomDsk/RAM_1024KB/UNARC.COM b/Source/RomDsk/RAM_1024KB/UNARC.COM
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diff --git a/Source/RomDsk/RAM_1024KB/UNZIP.COM b/Source/RomDsk/RAM_1024KB/UNZIP.COM
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diff --git a/Source/RomDsk/RAM_1024KB/XSUB.COM b/Source/RomDsk/RAM_1024KB/XSUB.COM
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index 00000000..15e86abf
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index 00000000..c30996a4
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diff --git a/Source/RomDsk/RAM_1024KB/ZAP.COM b/Source/RomDsk/RAM_1024KB/ZAP.COM
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index 00000000..be4dbf38
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diff --git a/Source/RomDsk/RAM_1024KB/ZCAL.COM b/Source/RomDsk/RAM_1024KB/ZCAL.COM
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index 00000000..f239e952
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diff --git a/Source/RomDsk/RAM_1024KB/ZCNFG.COM b/Source/RomDsk/RAM_1024KB/ZCNFG.COM
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diff --git a/Source/RomDsk/RAM_1024KB/ZCNFG24.CFG b/Source/RomDsk/RAM_1024KB/ZCNFG24.CFG
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diff --git a/Source/RomDsk/RAM_1024KB/ZDE.COM b/Source/RomDsk/RAM_1024KB/ZDE.COM
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diff --git a/Source/RomDsk/RAM_1024KB/ZPATH.COM b/Source/RomDsk/RAM_1024KB/ZPATH.COM
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diff --git a/Source/RomDsk/RAM_1024KB/ZSCONFIG.COM b/Source/RomDsk/RAM_1024KB/ZSCONFIG.COM
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diff --git a/Source/RomDsk/RAM_1024KB/ZSID.COM b/Source/RomDsk/RAM_1024KB/ZSID.COM
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diff --git a/Source/RomDsk/RAM_1024KB/ZXD.CFG b/Source/RomDsk/RAM_1024KB/ZXD.CFG
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diff --git a/Source/RomDsk/RAM_512KB/ASM.COM b/Source/RomDsk/RAM_512KB/ASM.COM
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diff --git a/Source/RomDsk/RAM_512KB/CLRDIR.COM b/Source/RomDsk/RAM_512KB/CLRDIR.COM
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diff --git a/Source/RomDsk/RAM_512KB/COMPARE.COM b/Source/RomDsk/RAM_512KB/COMPARE.COM
new file mode 100644
index 00000000..29fa41e6
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/COMPARE.COM differ
diff --git a/Source/RomDsk/RAM_512KB/COPY.COM b/Source/RomDsk/RAM_512KB/COPY.COM
new file mode 100644
index 00000000..606c81a5
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/COPY.COM differ
diff --git a/Source/RomDsk/RAM_512KB/DDT.COM b/Source/RomDsk/RAM_512KB/DDT.COM
new file mode 100644
index 00000000..70e4ebfe
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/DDT.COM differ
diff --git a/Source/RomDsk/RAM_512KB/DDTZ.COM b/Source/RomDsk/RAM_512KB/DDTZ.COM
new file mode 100644
index 00000000..4f6eca6b
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/DDTZ.COM differ
diff --git a/Source/RomDsk/RAM_512KB/DUMP.COM b/Source/RomDsk/RAM_512KB/DUMP.COM
new file mode 100644
index 00000000..03a77c3c
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/DUMP.COM differ
diff --git a/Source/RomDsk/RAM_512KB/ED.COM b/Source/RomDsk/RAM_512KB/ED.COM
new file mode 100644
index 00000000..a0f0f541
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/ED.COM differ
diff --git a/Source/RomDsk/RAM_512KB/FILEATTR.COM b/Source/RomDsk/RAM_512KB/FILEATTR.COM
new file mode 100644
index 00000000..4527d090
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/FILEATTR.COM differ
diff --git a/Source/RomDsk/RAM_512KB/FILEDATE.COM b/Source/RomDsk/RAM_512KB/FILEDATE.COM
new file mode 100644
index 00000000..11b83616
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/FILEDATE.COM differ
diff --git a/Source/RomDsk/RAM_512KB/FLASH.COM b/Source/RomDsk/RAM_512KB/FLASH.COM
new file mode 100644
index 00000000..d1833a1b
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/FLASH.COM differ
diff --git a/Source/RomDsk/RAM_512KB/LOAD.COM b/Source/RomDsk/RAM_512KB/LOAD.COM
new file mode 100644
index 00000000..b9601e00
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/LOAD.COM differ
diff --git a/Source/RomDsk/RAM_512KB/MBASIC.COM b/Source/RomDsk/RAM_512KB/MBASIC.COM
new file mode 100644
index 00000000..c9ec3cd3
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/MBASIC.COM differ
diff --git a/Source/RomDsk/RAM_512KB/PIP.COM b/Source/RomDsk/RAM_512KB/PIP.COM
new file mode 100644
index 00000000..4b2ce4b6
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/PIP.COM differ
diff --git a/Source/RomDsk/RAM_512KB/RELOG.COM b/Source/RomDsk/RAM_512KB/RELOG.COM
new file mode 100644
index 00000000..13ffc62e
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/RELOG.COM differ
diff --git a/Source/RomDsk/RAM_512KB/STAT.COM b/Source/RomDsk/RAM_512KB/STAT.COM
new file mode 100644
index 00000000..1de359f2
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/STAT.COM differ
diff --git a/Source/RomDsk/RAM_512KB/SUBMIT.COM b/Source/RomDsk/RAM_512KB/SUBMIT.COM
new file mode 100644
index 00000000..f651bfee
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/SUBMIT.COM differ
diff --git a/Source/RomDsk/RAM_512KB/SUPERSUB.COM b/Source/RomDsk/RAM_512KB/SUPERSUB.COM
new file mode 100644
index 00000000..a25d60a6
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/SUPERSUB.COM differ
diff --git a/Source/RomDsk/RAM_512KB/TD.COM b/Source/RomDsk/RAM_512KB/TD.COM
new file mode 100644
index 00000000..552aba67
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/TD.COM differ
diff --git a/Source/RomDsk/RAM_512KB/XSUB.COM b/Source/RomDsk/RAM_512KB/XSUB.COM
new file mode 100644
index 00000000..15e86abf
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/XSUB.COM differ
diff --git a/Source/RomDsk/RAM_512KB/ZDE.COM b/Source/RomDsk/RAM_512KB/ZDE.COM
new file mode 100644
index 00000000..b80559be
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/ZDE.COM differ
diff --git a/Source/RomDsk/RAM_512KB/ZPATH.COM b/Source/RomDsk/RAM_512KB/ZPATH.COM
new file mode 100644
index 00000000..5c0aa503
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/ZPATH.COM differ
diff --git a/Source/RomDsk/RAM_512KB/ZSCONFIG.COM b/Source/RomDsk/RAM_512KB/ZSCONFIG.COM
new file mode 100644
index 00000000..2cc26074
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/ZSCONFIG.COM differ
diff --git a/Source/RomDsk/RAM_512KB/ZXD.COM b/Source/RomDsk/RAM_512KB/ZXD.COM
new file mode 100644
index 00000000..20395673
Binary files /dev/null and b/Source/RomDsk/RAM_512KB/ZXD.COM differ
diff --git a/Source/RomDsk/ReadMe.txt b/Source/RomDsk/ReadMe.txt
index 05f0f22d..5fe0d7ed 100644
--- a/Source/RomDsk/ReadMe.txt
+++ b/Source/RomDsk/ReadMe.txt
@@ -12,7 +12,7 @@ Disk when a ROM is built.
 When constructing the ROM disk as part of a build, the build process
 first grabs all of the "standard" files for the size of ROM being
 built.  So, if you are building a normal 512KB ROM, all of the files
-in 512KB directory will be pulled in.
+in ROM_512KB directory will be pulled in.
 
 You may freely add/delete/update the files in these directories to
 change the contents of the ROM Disk of your ROM firmware.
@@ -26,3 +26,17 @@ BuildROM script:
 
 The resulting ROM Disk is still OK to use, but will not contain the
 file(s) that did not fit.
+
+RomWBW also supports the concept of a "ROMless" system in which an
+external bootstrap pre-loads the RAM.  The RAM_xxxKB directories
+contain the files to be used for such systems.  Note the size of the
+RAM disk on a 512KB ROMless system is not the same as the RAM disk
+on a normal system.  This is due to different bank layout and overhead.
+
+System		ROM Disk Image		RAM Disk Image
+------		--------------		--------------
+128KB		n/a			n/a
+256KB		128KB ROM Disk		n/a
+512KB		384KB ROM Disk		256KB RAM Disk
+1024KB		896KB ROM Disk		768KB RAM Disk ???
+2048KB		n/a			1792KB RAM Disk ???
\ No newline at end of file
diff --git a/Source/RomDsk/diskdefs b/Source/RomDsk/diskdefs
index 81d962cc..f29deca1 100644
--- a/Source/RomDsk/diskdefs
+++ b/Source/RomDsk/diskdefs
@@ -310,6 +310,32 @@ diskdef wbw_rom1024
   os 2.2
 end
 
+# RomWBW 512KB RAM (256KB reserved, 256KB RAM Disk)
+
+diskdef wbw_ram512
+  seclen 512
+  tracks 8
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
+# RomWBW 1024KB RAM (256KB reserved, 768KB RAM Disk)
+
+diskdef wbw_ram1024
+  seclen 512
+  tracks 24
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
 # RomWBW 720K floppy media
 
 diskdef wbw_fd720
diff --git a/Source/ver.inc b/Source/ver.inc
index 62b1afb3..7490948e 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	3
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.3.0-dev.59"
+#DEFINE BIOSVER	"3.3.0-dev.60"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index d7780d95..d14a496d 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	3
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.3.0-dev.59"
+	db	"3.3.0-dev.60"
 	endm
diff --git a/Tools/cpmtools/diskdefs b/Tools/cpmtools/diskdefs
index 81d962cc..f29deca1 100644
--- a/Tools/cpmtools/diskdefs
+++ b/Tools/cpmtools/diskdefs
@@ -310,6 +310,32 @@ diskdef wbw_rom1024
   os 2.2
 end
 
+# RomWBW 512KB RAM (256KB reserved, 256KB RAM Disk)
+
+diskdef wbw_ram512
+  seclen 512
+  tracks 8
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
+# RomWBW 1024KB RAM (256KB reserved, 768KB RAM Disk)
+
+diskdef wbw_ram1024
+  seclen 512
+  tracks 24
+  sectrk 64
+  blocksize 2048
+  maxdir 256
+  skew 0
+  boottrk 0
+  os 2.2
+end
+
 # RomWBW 720K floppy media
 
 diskdef wbw_fd720