Implement Auto PROFILE.SUB Execution on Boot

Updated CBIOS to look for PROFILE.SUB on the boot drive and SUBMIT it
automatically at cold boot if it exists.  Also patched SUBMIT.COM to
force temporary file onto A: to ensure immediate execution of SUBMITed
files.

Source/Apps/Startup.asm

@@ -0,0 +1,399 @@
+;===============================================================================
+; STARTUP - Application run automatically at OS startup
+;
+;===============================================================================
+;
+;	Author:  Wayne Warthen (wwarthen@gmail.com)
+;_______________________________________________________________________________
+;
+; Usage:
+;   MODE [/?]
+;
+; Operation:
+;   Determines if STARTUP.CMD exists on startup drive, user 0.  If it is
+;   found, it is run via SUBMIT.
+;_______________________________________________________________________________
+;
+; Change Log:
+;   2017-12-01 [WBW] Initial release
+;_______________________________________________________________________________
+;
+; ToDo:
+;  1) Detect OS type (CP/M or ZSYS) and run different batch files as a result.
+;_______________________________________________________________________________
+;
+;===============================================================================
+; Definitions
+;===============================================================================
+;
+stksiz	.equ	$40		; Working stack size
+;
+restart	.equ	$0000		; CP/M restart vector
+bdos	.equ	$0005		; BDOS invocation vector
+;
+ident	.equ	$FFFE		; loc of RomWBW HBIOS ident ptr
+;
+rmj	.equ	2		; intended CBIOS version - major
+rmn	.equ	8		; intended CBIOS version - minor
+;
+bf_cioinit	.equ	$04	; HBIOS: CIOINIT function
+bf_cioquery	.equ	$05	; HBIOS: CIOQUERY function
+bf_ciodevice	.equ	$06	; HBIOS: CIODEVICE function
+bf_sysget	.equ	$F8	; HBIOS: SYSGET function
+;
+;===============================================================================
+; Code Section
+;===============================================================================
+;
+	.org	$100
+;
+	; setup stack (save old value)
+	ld	(stksav),sp	; save stack
+	ld	sp,stack	; set new stack
+;
+	; initialization
+	call	init		; initialize
+	jr	nz,exit		; abort if init fails
+;
+	; process
+	call 	process		; do main processing
+	jr	nz,exit		; abort on error
+;
+exit:	; clean up and return to command processor
+	call	crlf		; formatting
+	ld	sp,(stksav)	; restore stack
+	;jp	restart		; return to CP/M via restart
+	ret			; return to CP/M w/o restart
+;
+; Initialization
+;
+init:
+;
+initx
+	; initialization complete
+	xor	a		; signal success
+	ret			; return
+;
+; Process
+;
+process:
+	; skip to start of first parm
+	ld	ix,$81		; point to start of parm area (past len byte)
+	call	nonblank	; skip to next non-blank char
+	jp	z,runcmd	; no parms, do command processing
+;
+process1:
+	; process options (if any)
+	cp	'/'		; option prefix?
+	jp	nz,erruse	; invalid option introducer
+	call	option		; process option
+	ret	nz		; some options mean we are done (e.g., "/?")
+	inc	ix		; skip option character
+	call 	nonblank	; skip whitespace
+	jr	nz,process1	; continue option checking
+	jp	runcmd		; end of parms, do cmd processing
+;
+;
+;
+runcmd:
+	call	ldfil		; load executable
+	ret	nz		; abort on error
+;
+	xor	a
+	ret
+;
+; Load file for execution
+;
+ldfil:
+	ld	c,15		; BDOS function: Open File
+	ld	de,fcb		; pointer to FCB
+	call	bdos		; do it
+	inc	a		; check for err, 0xFF --> 0x00
+	jp	z,errfil	; handle file not found err
+;
+	ld	c,16		; BDOS function: Close File
+	ld	de,fcb		; pointer to FCB
+	call	bdos		; do it
+	inc	a		; check for err, 0xFF --> 0x00
+	jp	z,errfil	; handle file close err
+;
+	xor	a		; signal success
+	ret			; done
+
+	
+;
+; Handle options
+;
+option:
+;
+	inc	ix		; next char
+	ld	a,(ix)		; get it
+	cp	'?'		; is it a '?' as expected?
+	jp	z,usage		; yes, display usage
+	jp	errprm		; anything else is an error
+;
+; Display usage
+;
+usage:
+;
+	call	crlf		; formatting
+	ld	de,msgban	; point to version message part 1
+	call	prtstr		; print it
+	call	crlf2		; blank line
+	ld	de,msguse	; point to usage message
+	call	prtstr		; print it
+	or	$FF		; signal no action performed
+	ret			; and return
+;
+; Print character in A without destroying any registers
+;
+prtchr:
+	push	bc		; save registers
+	push	de
+	push	hl
+	ld	e,a		; character to print in E
+	ld	c,$02		; BDOS function to output a character
+	call	bdos		; do it
+	pop	hl		; restore registers
+	pop	de
+	pop	bc
+	ret
+;
+prtdot:
+;
+	; shortcut to print a dot preserving all regs
+	push	af		; save af
+	ld	a,'.'		; load dot char
+	call	prtchr		; print it
+	pop	af		; restore af
+	ret			; done
+;
+; Print a zero terminated string at (DE) without destroying any registers
+;
+prtstr:
+	push	de
+;
+prtstr1:
+	ld	a,(de)		; get next char
+	or	a
+	jr	z,prtstr2
+	call	prtchr
+	inc	de
+	jr	prtstr1
+;
+prtstr2:
+	pop	de		; restore registers
+	ret	
+;
+; Print the value in A in hex without destroying any registers
+;
+prthex:
+	push	af		; save AF
+	push	de		; save DE
+	call	hexascii	; convert value in A to hex chars in DE
+	ld	a,d		; get the high order hex char
+	call	prtchr		; print it
+	ld	a,e		; get the low order hex char
+	call	prtchr		; print it
+	pop	de		; restore DE
+	pop	af		; restore AF
+	ret			; done
+;
+; print the hex word value in bc
+;
+prthexword:
+	push	af
+	ld	a,b
+	call	prthex
+	ld	a,c
+	call	prthex 
+	pop	af
+	ret
+;
+; print the hex dword value in de:hl
+;
+prthex32:
+	push	bc
+	push	de
+	pop	bc
+	call	prthexword
+	push	hl
+	pop	bc
+	call	prthexword
+	pop	bc
+	ret
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+hexascii:
+	ld	d,a		; save A in D
+	call	hexconv		; convert low nibble of A to hex
+	ld	e,a		; save it in E
+	ld	a,d		; get original value back
+	rlca			; rotate high order nibble to low bits
+	rlca
+	rlca
+	rlca
+	call	hexconv		; convert nibble
+	ld	d,a		; save it in D
+	ret			; done
+;
+; Convert low nibble of A to ascii hex
+;
+hexconv:
+	and	$0F	     	; low nibble only
+	add	a,$90
+	daa	
+	adc	a,$40
+	daa	
+	ret
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+prtdecb:
+	push	hl
+	ld	h,0
+	ld	l,a
+	call	prtdecw		; print it
+	pop	hl
+	ret
+;
+prtdecw:
+	push	af
+	push	bc
+	push	de
+	push	hl
+	call	prtdec0
+	pop	hl
+	pop	de
+	pop	bc
+	pop	af
+	ret
+;
+prtdec0:
+	ld	e,'0'
+	ld	bc,-10000
+	call	prtdec1
+	ld	bc,-1000
+	call	prtdec1
+	ld	bc,-100
+	call	prtdec1
+	ld	c,-10
+	call	prtdec1
+	ld	e,0
+	ld	c,-1
+prtdec1:
+	ld	a,'0' - 1
+prtdec2:
+	inc	a
+	add	hl,bc
+	jr	c,prtdec2
+	sbc	hl,bc
+	cp	e
+	ret	z
+	ld	e,0
+	call	prtchr
+	ret
+;
+; Start a new line
+;
+crlf2:
+	call	crlf		; two of them
+crlf:
+	push	af		; preserve AF
+	ld	a,13		; <CR>
+	call	prtchr		; print it
+	ld	a,10		; <LF>
+	call	prtchr		; print it
+	pop	af		; restore AF
+	ret
+;
+; Get the next non-blank character from (HL).
+;
+nonblank:
+	ld	a,(ix)		; load next character
+	or	a		; string ends with a null
+	ret	z		; if null, return pointing to null
+	cp	' '		; check for blank
+	ret	nz		; return if not blank
+	inc	ix		; if blank, increment character pointer
+	jr	nonblank	; and loop
+;
+; Convert character in A to uppercase
+;
+ucase:
+	cp	'a'		; if below 'a'
+	ret	c		; ... do nothing and return
+	cp	'z' + 1		; if above 'z'
+	ret	nc		; ... do nothing and return
+	res	5,a		; clear bit 5 to make lower case -> upper case
+	ret			; and return
+;
+; Add the value in A to HL (HL := HL + A)
+;
+addhl:
+	add	a,l		; A := A + L
+	ld	l,a		; Put result back in L
+	ret	nc		; if no carry, we are done
+	inc	h		; if carry, increment H
+	ret			; and return
+;
+; Jump indirect to address in HL
+;
+jphl:
+	jp	(hl)
+;
+; Errors
+;
+erruse:	; command usage error (syntax)
+	ld	de,msguse
+	jr	err
+;
+errprm:	; command parameter error (syntax)
+	ld	de,msgprm
+	jr	err
+;
+errfil:	; STARTUP.CMD file not present
+	ld	de,msgfil
+	jr	err
+;
+err:	; print error string and return error signal
+	call	crlf		; print newline
+;
+err1:	; without the leading crlf
+	call	prtstr		; print error string
+;
+err2:	; without the string
+;	call	crlf		; print newline
+	or	$FF		; signal error
+	ret			; done
+;
+;===============================================================================
+; Storage Section
+;===============================================================================
+;
+fcb	.db	0		; Drive code, 0 = current drive
+	.db	"START   "	; File name, 8 chars
+	.db	"COM"		; File type, 3 chars
+	.fill	36-($-fcb),0	; zero fill remainder of fcb
+;
+cmdblk	.db	cmdlen		; length
+cmdtxt	.db	"        B:SUBMIT START"
+	.db	0		; null terminator
+cmdlen	.equ	$ - cmdtxt
+cmdend	.equ	$
+;
+stksav	.dw	0		; stack pointer saved at start
+	.fill	stksiz,0	; stack
+stack	.equ	$		; stack top
+;
+; Messages
+;
+msgban	.db	"STARTUP v1.0, 01-Dec-2017",13,10
+	.db	"Copyright (C) 2017, Wayne Warthen, GNU GPL v3",0
+msguse	.db	"Usage: STARTUP [/?]",0
+msgprm	.db	"Parameter error (STARTUP /? for usage)",0
+msgfil	.db	"STARTUP.CMD file missing",0
+;
+	.end

Source/CBIOS/Build.cmd

@@ -14,11 +14,11 @@ set ZXINCDIR=%TOOLS%/cpm/include/
 echo.
 echo Building CBIOS for RomWBW...
 echo.
-tasm -t80 -b -g3 -fFF -dPLTWBW cbios.asm cbios_wbw.bin cbios_wbw.lst
+tasm -t80 -g3 -dPLTWBW cbios.asm cbios_wbw.bin cbios_wbw.lst
 if errorlevel 1 goto :eof
 
 echo.
 echo Building CBIOS for UNA...
 echo.
-tasm -t80 -b -g3 -fFF -dPLTUNA cbios.asm cbios_una.bin cbios_una.lst
+tasm -t80 -g3 -dPLTUNA cbios.asm cbios_una.bin cbios_una.lst
 if errorlevel 1 goto :eof

Source/CBIOS/cbios.asm

@@ -6,9 +6,15 @@
 ;	ROMWBW ADAPTATION BY WAYNE WARTHEN
 ;__________________________________________________________________________________________________
 ;
+; TODO:
+;  1) STACK LOCATION DURING BOOT OR WBOOT???
+;  2) REVIEW USE OF DI/EI IN INIT
+;
 FALSE		.EQU 	0
 TRUE		.EQU 	~FALSE
 ;
+BDOS		.EQU	5		; BDOS FUNC INVOCATION VECTOR
+;
 ; DEFINE PLATFORM STRING
 ;
 #IFDEF PLTWBW
@@ -283,18 +289,31 @@ DPBCNT	.EQU	($ - DPBMAP) / 2
 ;__________________________________________________________________________________________________
 BOOT:
 	; STANDARD BOOT INVOCATION
-	;DI
-	;IM	1
 	LD	SP,STACK	; STACK FOR INITIALIZATION
+
 ;
-	CALL	INIT		; EXECUTE COLD BOOT ROUTINE
+	; COPY INITIALIZATION CODE TO RUNNINT LOCATION $8000
+	LD	HL,BUFPOOL
+	LD	DE,$8000
+	LD	BC,CBIOS_END - BUFPOOL
+	PUSH	HL		; SAVE START ADR FOR BELOW
+	PUSH	HL		; SAVE START ADR AGAIN FOR BELOW
+	PUSH	BC		; SAVE LENGTH FOR BELOW
+	LDIR			; COPY THE CODE
 ;
-	; CLEAR BUFFER SPACE STARTING AT DIRBUF TO TOP OF CBIOS
-	; INIT SETS UP HL AND BC SO WE ARE READY TO CALL FILL
-	LD	SP,$100		; MOVE STACK OUT OF THE WAY TEMPORARILY
-	CALL	FILL		; CLEAR DISK BUFFER AREA
+	; CLEAR BUFFER
+	POP	BC		; RECOVER LENGTH
+	POP	HL		; RECOVER START
+	POP	DE		; RECOVER START AS DEST
+	LD	(HL),0		; SET FIRST BYTE TO ZERO
+	INC	DE		; OFFSET DEST
+	DEC	BC		; REDUCE LEN BY ONE
+	LDIR			; USE LDIR TO FILL
+;
+	CALL	INIT		; PERFORM COLD BOOD ROUTINE
+	CALL	RESCPM		; RESET CPM
+	CALL	AUTOSUB		; PREP AUTO SUBMIT, IF APPROPRIATE
 ;
-	LD	SP,STACK	; PUT STACK BACK WHERE IT BELONGS
 	JR	GOCPM		; THEN OFF TO CP/M WE GO...
 ;
 ;__________________________________________________________________________________________________
@@ -317,9 +336,6 @@ REBOOT:
 ;
 ;__________________________________________________________________________________________________
 WBOOT:
-	;DI
-	;IM	1
-;
 	LD	SP,STACK	; STACK FOR INITIALIZATION
 ;
 #IFDEF PLTUNA
@@ -339,16 +355,13 @@ WBOOT:
 	RST	08		; DO IT
 #ELSE
 	; RESTORE COMMAND PROCESSOR FROM CACHE IN HB BANK
-	;LD	B,BF_SYSXCPY	; HBIOS FUNC: SYSTEM EXTENDED COPY
 	LD	B,BF_SYSSETCPY	; HBIOS FUNC: SETUP BANK COPY
 	LD	DE,(BNKBIOS)	; D = DEST (USER BANK), E = SRC (BIOS BANK)
 	LD	HL,CCP_SIZ	; HL = COPY LEN = SIZE OF COMMAND PROCESSOR
 	RST	08		; DO IT
-	;LD	B,BF_SYSCPY	; HBIOS FUNC: SYSTEM COPY
 	LD	B,BF_SYSBNKCPY	; HBIOS FUNC: PERFORM BANK COPY
 	LD	HL,(CCPBUF)	; COPY FROM FIXED LOCATION IN HB BANK
 	LD	DE,CCP_LOC	; TO CCP LOCATION IN USR BANK
-	;LD	IX,CCP_SIZ	; COPY CONTENTS OF COMMAND PROCESSOR
 	RST	08		; DO IT
 #ENDIF
 ;
@@ -362,10 +375,11 @@ WBOOT:
 	XOR	A
 	CALL	FILL
 ;	
-	; FALL THRU TO INVOKE CP/M
+	CALL	RESCPM		; RESET CPM
+	JR	GOCPM		; THEN OFF TO CP/M WE GO...
 ;
 ;__________________________________________________________________________________________________			
-GOCPM:
+RESCPM:
 ;
 	LD	A,$C3			; LOAD A WITH 'JP' INSTRUCTION (USED BELOW)
 ;
@@ -401,6 +415,11 @@ GOCPM:
 	; DEFAULT DMA ADDRESS
 	LD	BC,$80			; DEFAULT DMA ADDRESS IS $80
 	CALL	SETDMA			; SET IT
+;
+	RET
+;
+;__________________________________________________________________________________________________			
+GOCPM:
 ;
 	; ENSURE VALID DISK AND JUMP TO CCP
 	LD	A,(CDISK)		; GET CURRENT USER/DISK
@@ -1779,13 +1798,9 @@ BUFPOOL	.EQU	$		; START OF BUFFER POOL
 ;
 ;==================================================================================================
 ;
-HCB	.EQU	$8000			; LOCATION OF TEMP COPY OF HCB DURING INIT (256 BYTES)
-INIBUF	.EQU	$8800			; LOCATION OF TEMP WORK BUF DURING INIT (512 BYTES)
+	.ORG	$8000			; INIT CODE RUNS AT $8000
 ;
 HEAPEND	.EQU	CBIOS_END - 64		; TOP OF HEAP MEM, END OF CBIOS LESS 32 ENTRY STACK
-;
-	.FILL	16 * 4,0		; SKIP DRVMAP TABLE AREA
-	.FILL	16 * 16,0		; SKIP DPH TABLE AREA
 ;
 INIT:
 	DI				; NO INTERRUPTS FOR NOW
@@ -1933,25 +1948,19 @@ INIT:
 #ENDIF
 ;
 	; DISPLAY FREE MEMORY
-	LD	DE,STR_LDR2	; FORMATTING
-	CALL	WRITESTR	; AND PRINT IT
-	;LD	HL,CBIOS_END	; SUBTRACT HIGH WATER
-	LD	HL,HEAPEND	; SUBTRACT HIGH WATER
-	LD	DE,(HEAPTOP)	; ... FROM TOP OF CBIOS
-	OR	A		; ... WITH CF CLEAR
-	SBC	HL,DE		; ... SO HL GETS BYTES FREE
-	CALL	PRTDEC		; PRINT IT
-	LD	DE,STR_MEMFREE	; ADD DESCRIPTION
-	CALL	WRITESTR	; AND PRINT IT
-;
-	LD	A,(DEFDRIVE)	; GET DEFAULT DRIVE
-	LD	(CDISK),A	; ... AND SETUP CDISK
-;
-	; SETUP AUTOSTART COMMAND
-	LD	HL,CMD		; ADDRESS OF STARTUP COMMAND
-	LD	DE,CCP_LOC + 7	; START OF COMMAND BUFFER IN CCP
-	LD	BC,CMDLEN	; LENGTH OF AUTOSTART COMMAND
-	LDIR			; INSTALL IT
+	LD	DE,STR_LDR2		; FORMATTING
+	CALL	WRITESTR		; AND PRINT IT
+	;LD	HL,CBIOS_END		; SUBTRACT HIGH WATER
+	LD	HL,HEAPEND		; SUBTRACT HIGH WATER
+	LD	DE,(HEAPTOP)		; ... FROM TOP OF CBIOS
+	OR	A			; ... WITH CF CLEAR
+	SBC	HL,DE			; ... SO HL GETS BYTES FREE
+	CALL	PRTDEC			; PRINT IT
+	LD	DE,STR_MEMFREE		; ADD DESCRIPTION
+	CALL	WRITESTR		; AND PRINT IT
+;	
+	LD	A,(DEFDRIVE)		; GET DEFAULT DRIVE
+	LD	(CDISK),A		; ... AND SETUP CDISK
 ;
 	; OS BANNER
 	CALL	NEWLINE2		; FORMATTING
@@ -1972,20 +1981,35 @@ INIT2:
 	LD	DE,STR_TPA2		; AND TPA SUFFIX
 	CALL	WRITESTR
 	CALL	NEWLINE			; FORMATTING
+	RET				; DONE
 ;
-	; SETUP HL & DE TO CLEAR BUFFER AFTER RETURN (VIA CALL TO FILL)
-	; HL: START OF BUFFER AREA TO CLEAR (DIRBUF)
-	; BC: LENGTH OF BUFFER AREA TO CLEAR CBIOS_END - (DIRBUF)
-	; CLEAR BUFFER SPACE STARTING AT DIRBUF TO TOP OF CBIOS
-	LD	HL,CBIOS_END	; CALC SIZE TO CLEAR BY
-	LD	DE,(DIRBUF)	; ... SUBTRACTING DIRBUF START
-	SBC	HL,DE		; ... FROM TOP OF CBIOS
-	PUSH	HL		; MOVE SIZE
-	POP	BC		; ... TO BC
-	LD	HL,(DIRBUF)	; START OF AREA TO CLEAR -> HL
-	XOR	A		; FILL WITH ZEROES
 ;
-	RET			; DONE
+;__________________________________________________________________________________________________
+AUTOSUB:
+;
+	; SETUP AUTO SUBMIT COMMAND (IF REQUIRED FILES EXIST)
+	LD	A,(DEFDRIVE)		; GET DEFAULT DRIVE
+	INC	A			; CONVERT FROM DRIVE NUM TO FCB DRIVE CODE
+	LD	(FCB_SUB),A		; SET DRIVE OF SUBMIT.COM FCB
+	LD	(FCB_PRO),A		; SET DRIVE OF PROFILE.SUB FCB
+;
+	LD	C,17			; BDOS FUNCTION: FIND FIRST
+	LD	DE,FCB_SUB		; CHECK FOR SUBMIT.COM
+	CALL	BDOS			; INVOKE BDOS TO LOOK FOR FILE
+	INC	A			; CHECK FOR ERR, $FF --> $00
+	RET	Z			; ERR, DO NOT ATTEMPT AUTO SUBMIT
+;
+	LD	C,17			; BDOS FUNCTION: FIND FIRST
+	LD	DE,FCB_PRO		; CHECK FOR PROFILE.SUB
+	CALL	BDOS			; INVOKE BDOS TO LOOK FOR FILE
+	INC	A			; CHECK FOR ERR, $FF --> $00
+	RET	Z			; ERR, DO NOT ATTEMPT AUTO SUBMIT
+;
+	LD	HL,CMD			; ADDRESS OF STARTUP COMMAND
+	LD	DE,CCP_LOC + 7		; START OF COMMAND BUFFER IN CCP
+	LD	BC,CMDLEN		; LENGTH OF AUTOSTART COMMAND
+	LDIR				; PATCH COMMAND LINE INTO CCP
+	RET				; DONE
 ;
 ;
 ;__________________________________________________________________________________________________
@@ -2843,20 +2867,28 @@ DEV15	.EQU	DEVUNK
 ;
 #ENDIF
 ;
-DPHTOP	.DW	0		; CURRENT TOP OF DPH POOL
-DIRBUF	.DW	0		; DIR BUF POINTER
-HEAPTOP	.DW	BUFPOOL		; CURRENT TOP OF HEAP
-BOOTVOL	.DW	0		; BOOT VOLUME, MSB=BOOT UNIT, LSB=BOOT SLICE
-BNKRAMD	.DB	0		; STARTING BANK ID FOR RAM DRIVE
-HDSPV	.DB	2		; SLICES PER VOLUME FOR HARD DISKS (MUST BE >= 1)
+DPHTOP	.DW	0			; CURRENT TOP OF DPH POOL
+DIRBUF	.DW	0			; DIR BUF POINTER
+HEAPTOP	.DW	BUFPOOL			; CURRENT TOP OF HEAP
+BOOTVOL	.DW	0			; BOOT VOLUME, MSB=BOOT UNIT, LSB=BOOT SLICE
+BNKRAMD	.DB	0			; STARTING BANK ID FOR RAM DRIVE
+HDSPV	.DB	2			; SLICES PER VOLUME FOR HARD DISKS (MUST BE >= 1)
 ;
-CMD	.DB	CMDLEN - 1
-#IFDEF AUTOCMD
-	.TEXT	AUTOCMD
-#ENDIF
+CMD	.DB	CMDLEN - 2
+	.TEXT	"SUBMIT PROFILE"
 	.DB	0
 CMDLEN	.EQU	$ - CMD
 ;
+FCB_SUB	.DB	'?'			; DRIVE CODE, 0 = CURRENT DRIVE
+	.DB	"SUBMIT  "		; FILE NAME, 8 CHARS
+	.DB	"COM"			; FILE TYPE, 3 CHARS
+	.FILL	36-($-FCB_SUB),0	; ZERO FILL REMAINDER OF FCB
+;
+FCB_PRO	.DB	'?'			; DRIVE CODE, 0 = CURRENT DRIVE
+	.DB	"PROFILE "		; FILE NAME, 8 CHARS
+	.DB	"SUB"			; FILE TYPE, 3 CHARS
+	.FILL	36-($-FCB_PRO),0	; ZERO FILL REMAINDER OF FCB
+;
 STR_BANNER	.DB	"CBIOS v", BIOSVER, " [", PLTSTR, "]$"
 STR_INITRAMDISK	.DB	"Formatting RAMDISK...$"
 STR_LDR2	.DB	"\r\n"
@@ -2869,10 +2901,18 @@ STR_CPM		.DB	"CP/M-80 v2.2$"
 STR_ZSDOS	.DB	"ZSDOS v1.1$"
 STR_TPA1	.DB	", $"
 STR_TPA2	.DB	"K TPA$"
+
+#IFDEF PLTUNA
+INIBUF	.FILL	512,0			; LOCATION OF TEMP WORK BUF DURING INIT (512 BYTES)
+#ELSE
+HCB	.FILL	HCB_SIZ,0		; LOCATION OF TEMP COPY OF HCB DURING INIT (256 BYTES)
+#ENDIF
 ;
 ;==================================================================================================
-;
+; END OF COLD BOOT INITIALIZATION
 ;==================================================================================================
+;
+	.ORG	BUFPOOL + ($ - $8000)
 ;
 SLACK	.EQU	(CBIOS_END - $)
 	.ECHO	"INIT code slack space: "

Source/CBIOS/config.asm

@@ -5,8 +5,6 @@ CLRRAMDISK	.EQU	CLR_AUTO	; CLR_ALWAYS, CLR_NEVER, CLR_AUTO (CLEAR IF INVALID DIR
 WRTCACHE	.EQU	TRUE		; ENABLE WRITE CACHING IN CBIOS (DE)BLOCKING ALGORITHM
 DSKTRACE	.EQU	FALSE		; ENABLE TRACING OF CBIOS DISK FUNCTION CALLS
 ;
-#DEFINE		AUTOCMD	""		; AUTO STARTUP COMMAND FOR CP/M
-;
 CPM_LOC		.EQU	$D000		; LOCATION OF START OF CCP
 ;
 #IFDEF PLTWBW

Source/CBIOS/ver.inc

@@ -2,4 +2,4 @@
 #DEFINE	RMN	8
 #DEFINE	RUP	6
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"2.8.6-pre.0"
+#DEFINE BIOSVER	"2.8.6-pre.1"

Source/HBIOS/ver.inc

@@ -2,4 +2,4 @@
 #DEFINE	RMN	8
 #DEFINE	RUP	6
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"2.8.6-pre.0"
+#DEFINE BIOSVER	"2.8.6-pre.1"