Update cfg_duo.asm

- Added support for Duodyne Multi-IO board
- Added support for Duodyne Zilog-IO board
- Added SUPCTS equate in hbios.asm to allow selectively adding code to suppress use of CTS during HBIOS boot
- Added reference in User Guide to Bruce Hall's Assembly Language Programming document

ReadMe.md

@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.4 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-09 Oct 2023
+13 Oct 2023
 
 # Overview
 

ReadMe.txt

@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-09 Oct 2023
+13 Oct 2023
 
 
 

Source/Apps/assign.asm

@@ -32,6 +32,7 @@
 ;                    Use CPM3 BDOS direct BIOS call to get DRVTBL adr
 ;   2023-06-19 [WBW] Update for revised DIODEVICE API
 ;   2023-09-19 [WBW] Added CHUSB & CHSD device support
+;   2023-10-13 [WBW] Fixed DPH creation to select correct DPB
 ;_______________________________________________________________________________
 ;
 ; ToDo:
@@ -665,10 +666,10 @@ makdphwbw:	; determine appropriate dpb (WBW mode, unit number in A)
 	jr	makdph0		; jump ahead
 makdph00:	
 	ld	e,6		; assume floppy
-	cp	$10		; floppy?
+	cp	$01		; floppy?
 	jr	z,makdph0	; yes, jump ahead
 	ld	e,3		; assume ram floppy
-	cp	$20		; ram floppy?
+	cp	$02		; ram floppy?
 	jr	z,makdph0	; yes, jump ahead
 	ld	e,4		; everything else is assumed to be hard disk
 	jr	makdph0		; yes, jump ahead
@@ -1935,13 +1936,13 @@ stack	.equ	$		; stack top
 ; Messages
 ;
 indent	.db	"   ",0
-msgban1	.db	"ASSIGN v1.7 for RomWBW CP/M ",0
+msgban1	.db	"ASSIGN v1.8 for RomWBW CP/M ",0
 msg22	.db	"2.2",0
 msg3	.db	"3",0
-msbban2	.db	", 19-Sep-2023",0
+msbban2	.db	", 13-Oct-2023",0
 msghb	.db	" (HBIOS Mode)",0
 msgub	.db	" (UBIOS Mode)",0
-msgban3	.db	"Copyright 2021, Wayne Warthen, GNU GPL v3",0
+msgban3	.db	"Copyright 2023, Wayne Warthen, GNU GPL v3",0
 msguse	.db	"Usage: ASSIGN D:[=[{D:|<device>[<unitnum>]:[<slicenum>]}]][,...]",13,10
 	.db	"  ex. ASSIGN           (display all active assignments)",13,10
 	.db	"      ASSIGN /?        (display version and usage)",13,10

Source/CPM3/biosldr.z80

@@ -346,8 +346,7 @@ read:
 	ld	b,17h			; HBIOS DEVICE function
 	rst	08			; Do it, D=device type
 	ld	a,d			; put in accum
-	and	0F0h			; isolate high bits
-	cp	10h			; floppy?
+	cp	01h			; floppy?
 	jr	nz,read2		; if not, do LBA i/o
 	
 	; Floppy I/O

Source/Doc/UserGuide.md

@@ -1609,7 +1609,7 @@ filesystem partition and any CP/M filesystem slices that don't fit.  You
 will get "no disk" errors if you attempt to access a slice past the 
 end of the physical hard disk.
 
-**WARNING**:Your hard disk may be too small to contain the full 64
+**WARNING**: Your hard disk may be too small to contain the full 64
 CP/M filesystem slices.  The true number of CP/M filesystem slices that
 will fit on your specific physical hard disk can be calculated as
 described in [Hard Disk Capacity].
@@ -1625,12 +1625,20 @@ them using `CLRDIR` first.
 
 A great way to maintain your own data on a hard disk is to put this
 data in slices beyond the first 6.  By doing so, you can always
-"reimage" your drive with the combo image without overlaying the data
+"re-image" your drive with the combo image without overlaying the data
 stored in the slices beyond the first 6.  Just be very careful to use
 the same combo image layout (hd512 or hd1k) as you used originally.
 Also remember to calculate the maximum number of slices your hard disk
 will support and do not exceed this number.
 
+**WARNING**: The combo disk image includes a partition table at the 
+start of the image.  If you re-image drive with the combo image, you 
+will overwrite this partition table.  This is fine as long as you don't 
+make any changes to the partition table.  If you manually customize the 
+partition table (using `FDISK80` or other partition management 
+software), those changes will be lost if you re-image your disk with a 
+new combo disk image.
+
 #### Custom Hard Disk Image
 
 If you want to use specific slices in a specific order, you can easily
@@ -1640,8 +1648,9 @@ For hard disks, each .img file represents a single slice (CP/M
 filesystem).  Since a hard disk can contain many slices, you can just 
 concatenate the slices (.img files) together to create your desired hard
 disk image.  For example, if you want to create a hard disk image that 
-has slices for CP/M 2.2, CP/M 3, and WordStar in the hd512 format, you would use 
-the command line of your modern computer to create the final image:
+has slices for CP/M 2.2, CP/M 3, and WordStar in the hd512 format, you 
+would use the command line of your modern computer to create the final 
+image:
 
 Windows:
 
@@ -3348,8 +3357,10 @@ directed to complete a partial flash using the /P command line switch.
 # Related Projects
 
 Outside of the hardware platforms adapted to RomWBW, there are a variety 
-of software projects that either target RomWBW specifically or provide
-a RomWBW-specific variation.
+of projects that either target RomWBW specifically or provide
+a RomWBW-specific variation.  These efforts are greatly appreciated
+and are listed below.  Please contact the author if there are any other
+such projects that are not listed.
 
 ## Z88DK
 
@@ -3385,6 +3396,16 @@ the CP/M OS variants.  This tool (`WDATE`) is included on the RomWBW
 OS disk images.  The project is hosted at
 <https://github.com/kevinboone/wdate-cpm>.
 
+## Assembly Language Programming for the RC2014 Zed
+
+Bruce Hall has written a very nice document that describes how to
+develop assembly language applications on RomWBW.  It begins with the
+setup and configuration of a new RC2014 Zed system running RomWBW.
+It describes not only generic CP/M application development, but also
+RomWBW HBIOS programming and bare metal programming.  The latest copy
+of this document is hosted at
+[http://w8bh.net/Assembly for RC2014Z.pdf](http://w8bh.net/Assembly%20for%20RC2014Z.pdf).
+
 # Acknowledgments
 
 I want to acknowledge that a great deal of the code and inspiration

Source/HBIOS/cfg_duo.asm

@@ -46,15 +46,15 @@ RTCIO		.EQU	$94		; RTC LATCH REGISTER ADR
 KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
 KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
 ;
-CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCENABLE	.EQU	TRUE		; ENABLE ZILOG CTC SUPPORT
 CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
-CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
+CTCBASE		.EQU	$60		; CTC BASE I/O ADDRESS
 CTCTIMER	.EQU	TRUE		; ENABLE CTC PERIODIC TIMER
 CTCMODE		.EQU	CTCMODE_CTR	; CTC MODE: CTCMODE_[NONE|CTR|TIM16|TIM256]
 CTCPRE		.EQU	256		; PRESCALE CONSTANT (1-256)
 CTCPRECH	.EQU	2		; PRESCALE CHANNEL (0-3)
 CTCTIMCH	.EQU	3		; TIMER CHANNEL (0-3)
-CTCOSC		.EQU	(4915200/8)	; CTC CLOCK FREQUENCY
+CTCOSC		.EQU	(7372800/8)	; CTC CLOCK FREQUENCY
 ;
 PCFENABLE	.EQU	FALSE		; ENABLE PCF8584 I2C CONTROLLER
 PCFBASE		.EQU	$56		; PCF8584 BASE I/O ADDRESS
@@ -122,7 +122,7 @@ DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
 DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
 ;
 UARTENABLE	.EQU	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
-UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTOSC		.EQU	7372800		; UART: OSC FREQUENCY IN MHZ
 UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
 UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
 UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
@@ -132,7 +132,7 @@ UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
 UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
 UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
 UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
-UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
+UARTDUAL	.EQU	TRUE		; UART: AUTO-DETECT DUAL UART
 ;
 ASCIENABLE	.EQU	FALSE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 ;
@@ -140,18 +140,18 @@ Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
 ;
 ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
 ;
-SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+SIOENABLE	.EQU	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 SIODEBUG	.EQU	FALSE		; SIO: ENABLE DEBUG OUTPUT
 SIOBOOT		.EQU	0		; SIO: REBOOT ON RCV CHAR (0=DISABLED)
 SIOCNT		.EQU	1		; SIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
 SIO0MODE	.EQU	SIOMODE_ZP	; SIO 0: CHIP TYPE: SIOMODE_[STD|RC|SMB|ZP|Z80R]
-SIO0BASE	.EQU	$B0		; SIO 0: REGISTERS BASE ADR
-SIO0ACLK	.EQU	(4915200/8)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0BASE	.EQU	$60		; SIO 0: REGISTERS BASE ADR
+SIO0ACLK	.EQU	(7372800/4)	; SIO 0A: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
 SIO0ACFG	.EQU	DEFSERCFG	; SIO 0A: SERIAL LINE CONFIG
-SIO0ACTCC	.EQU	-1		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
-SIO0BCLK	.EQU	(4915200/8)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
+SIO0ACTCC	.EQU	0		; SIO 0A: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCLK	.EQU	(7372800/4)	; SIO 0B: OSC FREQ IN HZ, ZP=2457600/4915200, RC/SMB=7372800
 SIO0BCFG	.EQU	DEFSERCFG	; SIO 0B: SERIAL LINE CONFIG
-SIO0BCTCC	.EQU	-1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
+SIO0BCTCC	.EQU	1		; SIO 0B: CTC CHANNEL 0=A, 1=B, 2=C, 3=D, -1 FOR NONE
 ;
 XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
 ;

Source/HBIOS/hbios.asm

@@ -71,6 +71,8 @@
 ;
 #DEFINE	HBIOS
 ;
+SUPCTS	.EQU	FALSE		; SUPPRESS CTS DURING HBIOS BOOT
+;
 ; MAKE SURE EXACTLY ONE OF ROMBOOT, APPBOOT, IMGBOOT IS DEFINED.
 ;
 MODCNT	.EQU	0
@@ -2300,8 +2302,36 @@ HB_BOOTDLY:
 	JR	C,HB_CONRDY		; IF TOO HIGH, JUST USE FAILSAFE
 	LD	A,BOOTCON		; GET REQUESTED CONSOLE DEV
 	LD	(CB_CONDEV),A		; SAVE IT
+;
 HB_CONRDY:
 ;
+#IF (SUPCTS)
+;
+; MOST SERIAL PORTS ARE CONFIGURED WITH HARDWARE FLOW CONTROL ENABLED.
+; IF THERE IS A PROBLEM WITH THE CTS SIGNAL, THEN OUTPUT TO THE CONSOLE
+; WILL BE STALLED WHICH CAN LEAD A USER TO THINK THE SYSTEM IS TOTALLY
+; DEAD WHEN, IN FACT, IT IS JUST WAITING FOR CTS TO BE ASSERTED.  ALSO,
+; IF THE USER IS BOOTING TO A CRT DEVICE AND DISCONNECTS THE CONSOLE
+; SERIAL PORT, THE SYSTEM WILL WAIT FOR RTS AND NEVER BOOT.  SO, HERE
+; WE SAVE THE ACTIVE CONSOLE CONFIGURATION, THEN TURN OFF HARDWARE
+; FLOW CONTROL.  THE ORIGINAL CONFIGURATION WILL BE RESTORED BELOW
+; PRIOR TO LAUNCING THE ROM LOADER.
+;
+	; RETRIEVE THE CONFIG FROM THE CONSOLE PORT
+	LD	B,BF_CIOQUERY		; HBIOS QUERY CIO CONFIG
+	LD	A,(CB_CONDEV)		; GET CONSOLE DEVICE
+	LD	(HB_BOOTCONSAV),A	; SAVE IT FOR LATER
+	LD	C,A			; BOOT CONSOLE TO C
+	CALL	HB_DISPATCH		; INTERNAL HBIOS CALL
+	LD	(HB_CONCFGSAV),DE	; SAVE CONFIG
+	RES	5,D			; CLEAR RTS BIT
+	LD	B,BF_CIOINIT		; HBIOS CIO INIT
+	LD	A,(CB_CONDEV)		; GET CONSOLE DEVICE
+	LD	C,A			; BOOT CONSOLE TO C
+	CALL	HB_DISPATCH		; INTERNAL HBIOS CALL
+;
+#ENDIF
+;
 #IF (WBWDEBUG == USEMIO)		; OUTPUT ANY CACHED DEBUG TEXT
 	LD	HL,MIOOUTPTR
 	LD	E,(HL)
@@ -2848,6 +2878,19 @@ HB_FPZ:
 ;
 INITSYS3:
 ;
+#IF (SUPCTS)
+;
+; RESTORE BOOT CONSOLE CONFIGURATION
+;
+	CALL	LDELAY			; ALLOW SERIAL PORT TO FLUSH
+	LD	B,BF_CIOINIT		; HBIOS CIO INIT
+	LD	A,(HB_BOOTCONSAV)	; ORIGINAL BOOT CONSOLE DEVICE
+	LD	C,A			; BOOT CONSOLE TO C
+	LD	DE,(HB_CONCFGSAV)	; SAVED ORIGINAL CONSOLE CFG
+	CALL	HB_DISPATCH		; INTERNAL HBIOS CALL
+;
+#ENDIF
+;
 ; IF WE ARE GOING TO SWITCH CONSOLES, IT IS IMPLEMENTED HERE.  A
 ; MESSAGE IS PRINTED ON THE OLD CONSOLE INDICATING WHERE THE NEW
 ; CONSOLE IS AND THE NEW CONSOLE RECEIVES AN HBIOS BANNER.
@@ -7721,6 +7764,11 @@ HB_BOOTCON	.DB	0		; INITIAL BOOT CONSOLE SAVE AREA
 HB_BOOTCFG	.DW	0		; CONSOLE CONFIG SAVE AREA
 HB_NEWCON	.DB	0		; NEW CONSOLE TO SWITCH TO
 ;
+#IF (SUPCTS)
+HB_BOOTCONSAV	.DB	0		; INITIAL BOOT CONSOLE SAVE AREA
+HB_CONCFGSAV	.DW	0		; CONSOLE CONFIG SAVE AREA
+#ENDIF
+;
 HB_HASFP	.DB	0		; NON-ZERO MEANS FP EXISTS
 ;
 HB_WRKBUF	.FILL	512,0		; INTERNAL DISK BUFFER

Source/HBIOS/std.asm

@@ -837,7 +837,7 @@ INT_CTC0A	.EQU	0	; ZILOG CTC 0, CHANNEL A
 INT_CTC0B	.EQU	1	; ZILOG CTC 0, CHANNEL B
 INT_CTC0C	.EQU	2	; ZILOG CTC 0, CHANNEL C
 INT_CTC0D	.EQU	3	; ZILOG CTC 0, CHANNEL D
-;INT_SIO0	.EQU	7	; ZILOG SIO 0, CHANNEL A & B
+INT_SIO0	.EQU	6	; ZILOG SIO 0, CHANNEL A & B
 INT_SIO1	.EQU	8	; ZILOG SIO 1, CHANNEL A & B
 INT_PIO0A	.EQU	9	; ZILOG PIO 0, CHANNEL A
 INT_PIO0B	.EQU	10	; ZILOG PIO 0, CHANNEL B

Source/HBIOS/uart.asm

@@ -63,7 +63,11 @@ UARTCBASE		.EQU	$80
 UARTMBASE		.EQU	$18
 UART4BASE		.EQU	$C0
 UARTRBASE		.EQU	$A0
+#IF (PLATFORM == PLT_DUO)
+UARTDBASE		.EQU	$70
+#ELSE
 UARTDBASE		.EQU	$80
+#ENDIF
 ;
 #IF (UARTINTS)
 ;

Source/ZRC/Build.cmd

@@ -14,8 +14,8 @@ goto :eof
 :build_zrc
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x100 zrc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x100 0x200 zrc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ80_zrc.rom -binary -offset 0x24000 -o temp.dat -binary
 move temp.dat ..\..\Binary\hd1k_zrc_prefix.dat
@@ -27,8 +27,8 @@ goto :eof
 :build_zrc_ram
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x100 zrc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x100 0x200 zrc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ80_zrc_ram.rom -binary -offset 0x24000 -o temp.dat -binary
 move temp.dat ..\..\Binary\hd1k_zrc_ram_prefix.dat

Source/ZRC/Makefile

@@ -27,16 +27,16 @@ DIFFPATH = $(DIFFTO)/Binary
 
 $(HD1KZRCPREFIX):
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x100 zrc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x100 0x200 zrc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZRCROM) -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
 $(HD1KZRCRAMPREFIX):
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x100 zrc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x100 0x200 zrc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x0 0x200 zrc_cfldr.bin -binary -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zrc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zrc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZRCRAMROM) -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@

Source/ZRC/ZRC Disk Layout.txt

@@ -4,8 +4,8 @@ ZRC Disk Prefix Layout
 ---- Bytes ----   --- Sectors ---
 Start   Length    Start   Length    Description
 ------- -------   ------- -------   ---------------------------
-0x00000 0x00100   0       0.5       CF Boot Loader
-0x00100 0x00100   0.5     0.5       RomWBW Partition Table
+0x00000 0x001BE   0       1         CF Boot Loader
+0x001B8 0x00048                     RomWBW Partition Table
 0x00200 0x1EE00   1       247       Unused
 0x1F000 0x01000   248     8         ZRC Monitor v0.7
 0x20000 0x04000   256     32        Unused
@@ -17,9 +17,9 @@ Notes
 -----
 
 - At startup CPLD ROM is mapped to Z80 CPU address space 0x0000-0x003F, CPU begins execution at 0x0000
-- CPLD ROM (CF bootstrap mode) reads CF Boot Loader (256B) from start of CF (MBR) to 0xB000 and runs it
+- CPLD ROM (CF bootstrap mode) reads CF Boot Loader (512B) from start of CF (MBR) to 0xB000 and runs it
 - CF Boot Loader reads ZRC Monitor (4KB) from sectors 0xF8-0xFF of CF to 0xB400 and runs it
 - ZRC Monitor reads 512KB (RomWBW) from sectors 0x120-0x51F of CF into first 512KB of physical RAM
 - ZRC Monitor maps first 32KB of physical RAM to first 32KB of CPU RAM and starts execution at 0x0000
 
--- WBW 2:30 PM 10/8/2023
+-- WBW 3:30 PM 10/12/2023

Source/ZZRCC/Build.cmd

@@ -17,8 +17,8 @@ goto :eof
 :build_zzrcc
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x100 zzrcc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x100 0x200 zzrcc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ280_zzrcc.rom -binary -offset 0x24000 -o temp.dat -binary
 move temp.dat ..\..\Binary\hd1k_zzrcc_prefix.dat
@@ -30,8 +30,8 @@ goto :eof
 :build_zzrcc_ram
 
 srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x0 0x100 zzrcc_cfldr.bin -binary -o temp.dat -binary
-srec_cat temp.dat -binary -exclude 0x100 0x200 zzrcc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
+srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 srec_cat temp.dat -binary -exclude 0x24000 0xA4000 ..\..\Binary\RCZ280_zzrcc_ram.rom -binary -offset 0x24000 -o temp.dat -binary
 move temp.dat ..\..\Binary\hd1k_zzrcc_ram_prefix.dat

Source/ZZRCC/Makefile

@@ -27,16 +27,16 @@ DIFFPATH = $(DIFFTO)/Binary
 
 $(HD1KZZRCCPREFIX):
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x100 zzrcc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x100 0x200 zzrcc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZZRCCROM) -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@
 
 $(HD1KZZRCCRAMPREFIX):
 	srec_cat -generate 0x0 0x100000 --constant 0x00 -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x0 0x100 zzrcc_cfldr.bin -binary -o temp.dat -binary
-	srec_cat temp.dat -binary -exclude 0x100 0x200 zzrcc_ptbl.bin -binary -offset 0x100 -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x0 0x200 zzrcc_cfldr.bin -binary -o temp.dat -binary
+	srec_cat temp.dat -binary -exclude 0x1B8 0x200 zzrcc_ptbl.bin -binary -offset 0x1B8 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x1F000 0x20000 zzrcc_mon.bin -binary -offset 0x1F000 -o temp.dat -binary
 	srec_cat temp.dat -binary -exclude 0x24000 0xA4000 $(ZZRCCRAMROM) -binary -offset 0x24000 -o temp.dat -binary
 	mv temp.dat $@

Source/ZZRCC/ZZRCC Disk Layout.txt

@@ -4,8 +4,8 @@ ZZRCC Disk Prefix Layout
 ---- Bytes ----   --- Sectors ---
 Start   Length    Start   Length    Description
 ------- -------   ------- -------   ---------------------------
-0x00000 0x00100   0       0.5       CF Boot Loader
-0x00100 0x00100   0.5     0.5       RomWBW Partition Table
+0x00000 0x001BE   0       1         CF Boot Loader
+0x001B8 0x00048                     RomWBW Partition Table
 0x00200 0x1EE00   1       247       Unused
 0x1F000 0x01000   248     8         ZZRCC Monitor v0.5
 0x20000 0x04000   256     32        Unused
@@ -17,9 +17,9 @@ Notes
 -----
 
 - At startup CPLD ROM is mapped to Z280 CPU address space 0x0000-0x003F, CPU begins execution at 0x0000
-- CPLD ROM (CF bootstrap mode) reads CF Boot Loader (256B) from start of CF (MBR) to 0xB000 and runs it
+- CPLD ROM (CF bootstrap mode) reads CF Boot Loader (512B) from start of CF (MBR) to 0xB000 and runs it
 - CF Boot Loader reads ZZRCC Monitor (4KB) from sectors 0xF8-0xFF of CF to 0xB400 and runs it
 - ZZRCC Monitor reads 512KB (RomWBW) from sectors 0x120-0x51F of CF into first 512KB of physical RAM
 - ZZRCC Monitor maps first 32KB of physical RAM to first 32KB of CPU RAM and starts execution at 0x0000
 
--WBW 2:36 PM 10/8/2023
+-WBW 3:30 PM 10/12/2023

Source/ver.inc

@@ -2,7 +2,7 @@
 #DEFINE	RMN	4
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.4.0-dev.7"
+#DEFINE BIOSVER	"3.4.0-dev.10"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP

Source/ver.lib

@@ -3,5 +3,5 @@ rmn	equ	4
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.4.0-dev.7"
+	db	"3.4.0-dev.10"
 	endm