Add EaZy80-512

1 year ago · f36a90afae
49 changed files with 200 additions and 64 deletions
--- a/Source/Build.cmd
+++ b/Source/Build.cmd
@ -12,6 +12,7 @@ call BuildZ1RCC || exit /b
 call BuildZZRCC || exit /b
 call BuildZRC512 || exit /b
 call BuildFZ80 || exit /b
+call BuildEZ512 || exit /b

 if "%1" == "dist" (
  call Clean || exit /b
--- a/Source/BuildEZ512.cmd
+++ b/Source/BuildEZ512.cmd
@ -0,0 +1,4 @@
+@echo off
+setlocal
+
+pushd EZ512 && call Build || exit /b & popd
--- a/Source/EZ512/Bank
+++ b/Source/EZ512/Bank
@ -0,0 +1,16 @@
+
+Eazy80_512 has a 64K ROM contains a monitor.  The monitor command "b 4" loads RomWBW program
+starting from SD sector 288 into first 4 banks of memory.  RAM disk is not loaded, so drive A is
+blank.
+
+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 <- not loaded, blank
+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
--- a/Source/EZ512/Build.cmd
+++ b/Source/EZ512/Build.cmd
@ -0,0 +1,26 @@
+@echo off
+setlocal
+
+set TOOLS=../../Tools
+
+set PATH=%TOOLS%\srecord;%PATH%
+
+for %%f in (..\..\Binary\RCZ80_ez512_*.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 0x0 0x200 ez512_cfldr.bin -binary -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 ez512_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1F000 0x20000 ez512_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
+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\%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
--- a/Source/EZ512/Clean.cmd
+++ b/Source/EZ512/Clean.cmd
@ -0,0 +1,3 @@
+@echo off
+setlocal
+
--- a/Source/EZ512/EZ512
+++ b/Source/EZ512/EZ512
@ -0,0 +1,22 @@
+Eazy80_512 Disk Prefix Layout
+=============================
+
+---- Bytes ----   --- Sectors ---
+Start   Length    Start   Length    Description
+------- -------   ------- -------   ---------------------------
+0x00000 0x001BE   0       1         CF Boot Loader
+0x001B8 0x00048                     RomWBW Partition Table
+0x00200 0x1EE00   1       247       Unused
+0x1F000 0x01000   248     8         EZ512 Monitor v0.3
+0x20000 0x04000   256     32        Unused
+0x24000 0x80000   288     1024      RomWBW
+0xA4000 0x5C000   1312    736       Unused  
+0x100000          2048              Start of slices (partition 0x1E)
+
+Notes
+-----
+- Eazy80_512 monitor reads the first 128KB of RomWBW stored started from sector 288 into banks 0-3
+- Afterward Z80 jumps to location 0x0 to execute RomWBW
+
+
+
--- a/Source/EZ512/Makefile
+++ b/Source/EZ512/Makefile
@ -0,0 +1,27 @@
+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)/RCZ80_ez512_*.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 0x0 0x200 ez512_cfldr.bin -binary -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 ez512_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 ez512_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $< -binary -offset 0x24000 -o temp.dat -binary
+	mv temp.dat $@
+
+%_hd1k_combo.img: %_hd1k_prefix.dat  $(HD1KIMGS)
+	cat $^ > $@
--- a/Source/HBIOS/Build.cmd
+++ b/Source/HBIOS/Build.cmd
@ -234,6 +234,7 @@ call Build RCZ80 skz_std || exit /b
 call Build RCZ80 zrc_std || exit /b
 call Build RCZ80 zrc_ram_std || exit /b
 call Build RCZ80 zrc512_std || exit /b
+call Build RCZ80 ez512_std || exit /b
 call Build RCZ180 ext_std || exit /b
 call Build RCZ180 nat_std || exit /b
 call Build RCZ180 z1rcc_std || exit /b
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@ -26,6 +26,7 @@ if [ "${ROM_PLATFORM}" == "dist" ] ; then
 	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="RCZ80"; ROM_CONFIG="ez512_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
--- a/Source/HBIOS/Config/GMZ180_std.asm
+++ b/Source/HBIOS/Config/GMZ180_std.asm
@ -82,7 +82,7 @@ FDMODE		.SET	FDMODE_RCWDC	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3
 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]
+SDMODE		.SET	SDMODE_GM	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/Config/MK4_std.asm
+++ b/Source/HBIOS/Config/MK4_std.asm
@ -70,6 +70,6 @@ FDMODE		.SET	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|
 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|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 ;
 PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
--- a/Source/HBIOS/Config/N8_std.asm
+++ b/Source/HBIOS/Config/N8_std.asm
@ -61,6 +61,6 @@ 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: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 ;
 AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
--- a/Source/HBIOS/Config/RCEZ80_std.asm
+++ b/Source/HBIOS/Config/RCEZ80_std.asm
@ -69,7 +69,7 @@ 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]
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
 ;
--- a/Source/HBIOS/Config/RCZ80_std.asm
+++ b/Source/HBIOS/Config/RCZ80_std.asm
@ -77,7 +77,7 @@ 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_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80]
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/Config/S100_std.asm
+++ b/Source/HBIOS/Config/S100_std.asm
@ -63,5 +63,5 @@ 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|PIO|Z80R|EPITX|FZ80|GM]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 SDCNT		.SET	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD/SC/MT ONLY
--- a/Source/HBIOS/Config/SBC_std.asm
+++ b/Source/HBIOS/Config/SBC_std.asm
@ -66,6 +66,6 @@ FDMODE		.SET	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|
 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|MT|USR|PIO|Z80R|EPITX|FZ80|GM]
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 ;
 PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
--- a/Source/HBIOS/Config/SCZ180_sc126_std.asm
+++ b/Source/HBIOS/Config/SCZ180_sc126_std.asm
@ -84,7 +84,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/Config/SCZ180_sc130_std.asm
+++ b/Source/HBIOS/Config/SCZ180_sc130_std.asm
@ -85,7 +85,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/Config/SCZ180_sc131_std.asm
+++ b/Source/HBIOS/Config/SCZ180_sc131_std.asm
@ -74,7 +74,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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
--- a/Source/HBIOS/Config/SCZ180_sc700_std.asm
+++ b/Source/HBIOS/Config/SCZ180_sc700_std.asm
@ -84,7 +84,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_DUO.asm
+++ b/Source/HBIOS/cfg_DUO.asm
@ -68,7 +68,7 @@ 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -287,7 +287,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_DYNO.asm
+++ b/Source/HBIOS/cfg_DYNO.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -302,7 +302,7 @@ 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]
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_EPITX.asm
+++ b/Source/HBIOS/cfg_EPITX.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
 Z180_BASE	.SET	$C0		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
@ -298,7 +298,7 @@ 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]
+SDMODE		.SET	SDMODE_EPITX	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_FZ80.asm
+++ b/Source/HBIOS/cfg_FZ80.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -307,7 +307,7 @@ 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]
+SDMODE		.SET	SDMODE_FZ80	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_GMZ180.asm
+++ b/Source/HBIOS/cfg_GMZ180.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -303,7 +303,7 @@ 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]
+SDMODE		.SET	SDMODE_GM	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_HEATH.asm
+++ b/Source/HBIOS/cfg_HEATH.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -307,7 +307,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_MASTER.asm
+++ b/Source/HBIOS/cfg_MASTER.asm
@ -69,7 +69,7 @@ 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]
+MEMMGR		.EQU	MM_NONE		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -360,7 +360,7 @@ 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]
+SDMODE		.EQU	SDMODE_NONE	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_MBC.asm
+++ b/Source/HBIOS/cfg_MBC.asm
@ -68,7 +68,7 @@ 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]
+MEMMGR		.SET	MM_MBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
 ;
@ -283,7 +283,7 @@ 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]
+SDMODE		.SET	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_MK4.asm
+++ b/Source/HBIOS/cfg_MK4.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 RAMBIAS		.SET	ROMSIZE		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
 Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
@ -292,7 +292,7 @@ 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]
+SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_MON.asm
+++ b/Source/HBIOS/cfg_MON.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_MON		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 ;
 RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
 ;
@ -302,7 +302,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_N8.asm
+++ b/Source/HBIOS/cfg_N8.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_N8		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 RAMBIAS		.SET	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
 Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
@ -294,7 +294,7 @@ 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]
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_NABU.asm
+++ b/Source/HBIOS/cfg_NABU.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -307,7 +307,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_RCEZ80.asm
+++ b/Source/HBIOS/cfg_RCEZ80.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -307,7 +307,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_RCZ180.asm
+++ b/Source/HBIOS/cfg_RCZ180.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -302,7 +302,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_RCZ280.asm
+++ b/Source/HBIOS/cfg_RCZ280.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -312,7 +312,7 @@ 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]
+SDMODE		.SET	SDMODE_MT	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_RCZ80.asm
+++ b/Source/HBIOS/cfg_RCZ80.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -307,7 +307,7 @@ 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]
+SDMODE		.SET	SDMODE_PIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_RPH.asm
+++ b/Source/HBIOS/cfg_RPH.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_RPH		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 RAMBIAS		.SET	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
 Z180_BASE	.SET	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
@ -282,7 +282,7 @@ 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]
+SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_S100.asm
+++ b/Source/HBIOS/cfg_S100.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -302,7 +302,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_SBC.asm
+++ b/Source/HBIOS/cfg_SBC.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
 ;
@ -282,7 +282,7 @@ 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]
+SDMODE		.SET	SDMODE_JUHA	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_SCZ180.asm
+++ b/Source/HBIOS/cfg_SCZ180.asm
@ -67,7 +67,7 @@ DEFSERCFG	.SET	SER_115200_8N1 | SER_RTS	; DEFAULT SERIAL LINE CONFIG (SEE STD.AS
 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]
+MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -302,7 +302,7 @@ 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]
+SDMODE		.SET	SDMODE_SC	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_Z80RETRO.asm
+++ b/Source/HBIOS/cfg_Z80RETRO.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -262,7 +262,7 @@ 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]
+SDMODE		.SET	SDMODE_Z80R	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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
--- a/Source/HBIOS/cfg_ZETA.asm
+++ b/Source/HBIOS/cfg_ZETA.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
 ;
@ -231,7 +231,7 @@ 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]
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/cfg_ZETA2.asm
+++ b/Source/HBIOS/cfg_ZETA2.asm
@ -67,7 +67,7 @@ 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]
+MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH|MON|EZ512]
 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)
@ -242,7 +242,7 @@ 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]
+SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512]
 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)
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@ -745,6 +745,18 @@ HBX_ROM:
 	RET				; DONE
 #ENDIF
 ;
+#IF (MEMMGR == MM_EZ512)
+	AND	$F			; HCS mask off high nibble
+	BIT	3,A			; HCS if banks $8-$F, set bit 6
+	JR	Z,MM_EZ512_BANK0TO7
+	AND	7			; HCS clear bit 3
+	OR	$40			; HCS set bit 6 for banks $8-$F
+MM_EZ512_BANK0TO7:
+	OR	$80			; HCS set bit 7 to keep RAM enabled
+	OUT	($0C),A			; HCS write to the bank control register
+	RET				; DONE
+#ENDIF
+;
 #IF (MEMMGR == MM_MBC)
 ;
  #IF (INTMODE == 1)
--- a/Source/HBIOS/sd.asm
+++ b/Source/HBIOS/sd.asm
@ -311,7 +311,6 @@ SD_INVCS	.EQU	FALSE		; INVERT CS
 		DEVECHO	"MT"
 #ENDIF
 ;
-;
 #IF (SDMODE == SDMODE_PIO)		; Z80 PIO
 ;
 ;	These mappings work for the RCbus Gluino card with an Arduino
@ -344,7 +343,6 @@ SD_INVCS	.EQU	TRUE		; INVERT CS
 		DEVECHO	"PIO"
 #ENDIF
 ;
-;
 #IF (SDMODE == SDMODE_USR)		; USER DEFINED HARDWARE CONFIGURATION
 ;
 ; THIS MODE IS INTENDED TO ALLOW A USER TO EASILY CONFIGURE A CUSTOM
@ -391,7 +389,8 @@ SD_INVCS	.EQU	TRUE		; INVERT CS
 #ENDIF
 ;
 ; FOR NOW WE JUST HOOK UP ONE UNIT. THERE ARE EIGHT PORTS FOR DIFFERENT
-; THINGS BUT THIS WILL GET US GOING
+; THINGS BUT THIS WILL GET US GOING.
+;
 #IF (SDMODE == SDMODE_EPITX)		; Z180 ITX - CSIO, 82C55 for CS
 SD_DEVMAX	.EQU	1		; NUMBER OF PHYSICAL UNITS (SOCKETS)
 SD_OPRREG	.EQU	$42		; 82C55 PORT C, LOW 3 ARE \CS MUX
@ -436,6 +435,25 @@ SD_CS1		.EQU	%00000010	; SECONDARY DEVICE SELECT BIT
 SD_INVCS	.EQU	TRUE		; INVERT CS
 		DEVECHO	"FZ80"
 #ENDIF
+;
+#IF (SDMODE == SDMODE_EZ512)		; Z80 PIO ON EAZY80-512
+;
+;	Equivalent to PIO mode, but with different port addresses
+;
+SD_DEVMAX	.EQU	1		; NUMBER OF PHYSICAL UNITS (SOCKETS)
+SD_IOBASE	.EQU	$02		; IO BASE ADDRESS FOR SD INTERFACE
+SD_OPRREG	.EQU	SD_IOBASE	; OUTPUT PORT (OUTPUT: CS, CLK, DIN)
+SD_OPRDEF	.EQU	%11101111	; OUTPUT PORT DEFAULT STATE
+SD_INPREG	.EQU	SD_IOBASE	; INPUT REGISTER
+SD_CS0		.EQU	%00001000	; SELECT
+SD_CLK		.EQU	%00010000	; CLOCK
+SD_DI		.EQU	%00000001	; DATA IN (CARD <- CPU) MOSI
+SD_DO		.EQU	%10000000	; DATA OUT (CARD -> CPU) MISO
+SD_CINIT	.EQU	TRUE		; INITIALIZE OUTPUT PORT
+SD_DDR		.EQU	$03		; DATA DIRECTION REGISTER
+SD_DDRVAL	.EQU	%11100110	; DATA DIRECTION REGISTER VALUE
+SD_INVCS	.EQU	TRUE		; INVERT CS
+#ENDIF
 ;
 		DEVECHO	", IO="
 		DEVECHO	SD_IOBASE
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@ -92,6 +92,7 @@ MM_ZRC		.EQU	6		; ZRC BANK SWITCHING
 MM_MBC		.EQU	7		; MBC MEMORY MANAGER
 MM_RPH		.EQU	8		; Z180 WITH RPH EXTENSIONS
 MM_MON		.EQU	9		; MONSPUTER MMU
+MM_EZ512	.EQU	10		; EZ512 BANK SWITCHING
 ;
 ; BOOT STYLE
 ;
@ -241,6 +242,7 @@ 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
+SDMODE_EZ512	.EQU	16		; EZ512 SD
 ;
 ; AY SOUND CHIP MODE SELECTIONS
 ;
--- 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 fz80
+.PHONY: doc prop shared bp images rom zrc z1rcc zzrcc zrc512 fz80 ez512

 .ONESHELL:
 .SHELLFLAGS = -ce

-all: prop shared bp images rom zrc z1rcc zzrcc zrc512 fz80
+all: prop shared bp images rom zrc z1rcc zzrcc zrc512 fz80 ez512

 doc:
 	$(MAKE) --directory Doc $(ACTION)
@ -57,6 +57,9 @@ zrc512:
 fz80:
 	$(MAKE) --directory FZ80 $(ACTION)

+ez512:
+	$(MAKE) --directory EZ512 $(ACTION)
+
 clean: ACTION=clean
 clean: all

--- 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.100"
+#DEFINE BIOSVER	"3.5.0-dev.101"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
--- 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.100"
+	db	"3.5.0-dev.101"
 	endm