*
|
*
|
* Sector Dump Utility
|
* Sector Dump Utility
|
* for IDE Drives or Compact Flash
|
* for IDE Drives or Compact Flash
|
* for the 6809
|
* for the 6809
|
* revised for 16 bit peripheral bus
|
* revised for 16 bit peripheral bus
|
* on XESS XSA-3S1000 / XST-3.0
|
* on XESS XSA-3S1000 / XST-3.0
|
*
|
*
|
* John Kent
|
* John Kent
|
* 1 Feb 2008
|
* 1 Feb 2008
|
*
|
*
|
* SYS09BUG
|
* SYS09BUG
|
*
|
*
|
MON_BASE EQU $F800
|
MON_BASE EQU $F800
|
MONV EQU MON_BASE+0
|
MONV EQU MON_BASE+0
|
NEXTCV EQU MON_BASE+2
|
NEXTCV EQU MON_BASE+2
|
INCHV EQU MON_BASE+4
|
INCHV EQU MON_BASE+4
|
INCHEV EQU MON_BASE+6
|
INCHEV EQU MON_BASE+6
|
INCHEKV EQU MON_BASE+8
|
INCHEKV EQU MON_BASE+8
|
OUTCHV EQU MON_BASE+10
|
OUTCHV EQU MON_BASE+10
|
PDATAV EQU MON_BASE+12
|
PDATAV EQU MON_BASE+12
|
PCRLFV EQU MON_BASE+14
|
PCRLFV EQU MON_BASE+14
|
PSTRGV EQU MON_BASE+16
|
PSTRGV EQU MON_BASE+16
|
*
|
*
|
* Register Equates
|
* Register Equates
|
*
|
*
|
CF_BASE EQU $E100
|
CF_BASE EQU $E100
|
CF_DATA EQU CF_BASE+0
|
CF_DATA EQU CF_BASE+0
|
CF_ERROR EQU CF_BASE+2 ; read error
|
CF_ERROR EQU CF_BASE+2 ; read error
|
CF_FEATURE EQU CF_BASE+2 ; write feature
|
CF_FEATURE EQU CF_BASE+2 ; write feature
|
CF_SECCNT EQU CF_BASE+4
|
CF_SECCNT EQU CF_BASE+4
|
CF_SECNUM EQU CF_BASE+6
|
CF_SECNUM EQU CF_BASE+6
|
CF_CYLLO EQU CF_BASE+8
|
CF_CYLLO EQU CF_BASE+8
|
CF_CYLHI EQU CF_BASE+10
|
CF_CYLHI EQU CF_BASE+10
|
CF_HEAD EQU CF_BASE+12
|
CF_HEAD EQU CF_BASE+12
|
CF_STATUS EQU CF_BASE+14 ; read status
|
CF_STATUS EQU CF_BASE+14 ; read status
|
CF_COMAND EQU CF_BASE+14 ; write command
|
CF_COMAND EQU CF_BASE+14 ; write command
|
CF_AUX EQU CF_BASE+30
|
CF_AUX EQU CF_BASE+30
|
*
|
*
|
* Command Equates
|
* Command Equates
|
*
|
*
|
AUXRESET EQU $06 ; CF_AUX Reset command
|
AUXRESET EQU $06 ; CF_AUX Reset command
|
AUXRELEA EQU $02
|
AUXRELEA EQU $02
|
CMDREAD EQU $20 ; Read Single sector
|
CMDREAD EQU $20 ; Read Single sector
|
CMDWRITE EQU $30 ; Write Single sector
|
CMDWRITE EQU $30 ; Write Single sector
|
HEADLBA EQU $E0
|
HEADLBA EQU $E0
|
*
|
*
|
* Status bit equates
|
* Status bit equates
|
*
|
*
|
BUSY EQU $80
|
BUSY EQU $80
|
DRDY EQU $40
|
DRDY EQU $40
|
DRQ EQU $08
|
DRQ EQU $08
|
ERR EQU $01
|
ERR EQU $01
|
*
|
*
|
* Start of Program
|
* Start of Program
|
*
|
*
|
ORG $0100
|
ORG $0100
|
START LBRA START1
|
START LBRA START1
|
*
|
*
|
* DATA STORAGE
|
* DATA STORAGE
|
*
|
*
|
SECNUM FCB $00,$00,$00
|
SECNUM FCB $00,$00,$00
|
CPORT FDB $E000
|
CPORT FDB $E000
|
ECHO FCB $FF
|
ECHO FCB $FF
|
*
|
*
|
* SECTOR BUFFER
|
* SECTOR BUFFER
|
*
|
*
|
SECBUF RMB 512
|
SECBUF RMB 512
|
*
|
*
|
* PROGRAM STACK
|
* PROGRAM STACK
|
*
|
*
|
RMB 64
|
RMB 64
|
STACK EQU *
|
STACK EQU *
|
*
|
*
|
* Initialization
|
* Initialization
|
*
|
*
|
START1 LDS #STACK
|
START1 LDS #STACK
|
*
|
*
|
* Clear sector buffer
|
* Clear sector buffer
|
*
|
*
|
LDX #SECBUF
|
LDX #SECBUF
|
LDY #0
|
LDY #0
|
LDB #0
|
LDB #0
|
ZEROLP STY ,X++
|
ZEROLP STY ,X++
|
DECB
|
DECB
|
BNE ZEROLP
|
BNE ZEROLP
|
*
|
*
|
* INITIALIZE CF CARD FOR 8 BIT LBA MODE
|
* INITIALIZE CF CARD FOR 8 BIT LBA MODE
|
*
|
*
|
LDD #AUXRESET
|
LDD #AUXRESET
|
STD CF_AUX
|
STD CF_AUX
|
LDD #AUXRELEA
|
LDD #AUXRELEA
|
STD CF_AUX
|
STD CF_AUX
|
JSR WAITRDY
|
JSR WAITRDY
|
LDD #HEADLBA
|
LDD #HEADLBA
|
STD CF_HEAD
|
STD CF_HEAD
|
JSR WAITRDY
|
JSR WAITRDY
|
*
|
*
|
* DISPLAY TITTLE BANNER
|
* DISPLAY TITTLE BANNER
|
*
|
*
|
LDX #TTLMSG
|
LDX #TTLMSG
|
JSR PDATA
|
JSR PDATA
|
*
|
*
|
* COMMAND LOOP
|
* COMMAND LOOP
|
* R - READ
|
* R - READ
|
* W - WRITE
|
* W - WRITE
|
* N - NEXT
|
* N - NEXT
|
* P - PREV
|
* P - PREV
|
* M - MODIFY
|
* M - MODIFY
|
* Q - QUIT
|
* Q - QUIT
|
*
|
*
|
CMDLP LDX #CMDMSG
|
CMDLP LDX #CMDMSG
|
JSR PDATA
|
JSR PDATA
|
JSR ECHON
|
JSR ECHON
|
CMPA #'R'
|
CMPA #'R'
|
BEQ READ
|
BEQ READ
|
CMPA #'N'
|
CMPA #'N'
|
BEQ NEXT
|
BEQ NEXT
|
CMPA #'P'
|
CMPA #'P'
|
BEQ PREV
|
BEQ PREV
|
CMPA #'W'
|
CMPA #'W'
|
LBEQ WRITE
|
LBEQ WRITE
|
CMPA #'M'
|
CMPA #'M'
|
BEQ MODIFY
|
BEQ MODIFY
|
CMPA #'Q'
|
CMPA #'Q'
|
BEQ QUIT
|
BEQ QUIT
|
CMPA #'r'
|
CMPA #'r'
|
BEQ READ
|
BEQ READ
|
CMPA #'n'
|
CMPA #'n'
|
BEQ NEXT
|
BEQ NEXT
|
CMPA #'p'
|
CMPA #'p'
|
BEQ PREV
|
BEQ PREV
|
CMPA #'w'
|
CMPA #'w'
|
LBEQ WRITE
|
LBEQ WRITE
|
CMPA #'m'
|
CMPA #'m'
|
BEQ MODIFY
|
BEQ MODIFY
|
CMPA #'q'
|
CMPA #'q'
|
BEQ QUIT
|
BEQ QUIT
|
LDX #WOTMSG
|
LDX #WOTMSG
|
JSR PSTRNG
|
JSR PSTRNG
|
BRA CMDLP
|
BRA CMDLP
|
*
|
*
|
* QUIT
|
* QUIT
|
*
|
*
|
QUIT JMP [MONV]
|
QUIT JMP [MONV]
|
*
|
*
|
* MODIFY SECTOR
|
* MODIFY SECTOR
|
*
|
*
|
MODIFY JSR MEMCHG
|
MODIFY JSR MEMCHG
|
BRA CMDLP
|
BRA CMDLP
|
*
|
*
|
* NEXT SECTOR (READ)
|
* NEXT SECTOR (READ)
|
* INCREMENT SECTOR NUMBER
|
* INCREMENT SECTOR NUMBER
|
* WRAPS AROUND TO ZERO ON $FFFFFF
|
* WRAPS AROUND TO ZERO ON $FFFFFF
|
*
|
*
|
NEXT LDX SECNUM+1
|
NEXT LDX SECNUM+1
|
LEAX 1,X
|
LEAX 1,X
|
STX SECNUM+1
|
STX SECNUM+1
|
BNE READS
|
BNE READS
|
INC SECNUM
|
INC SECNUM
|
BRA READS
|
BRA READS
|
*
|
*
|
* PREVIOUS SECTOR (READ)
|
* PREVIOUS SECTOR (READ)
|
* DECREMENT SECTOR NUMBER
|
* DECREMENT SECTOR NUMBER
|
* DON'T DECREMENT PAST $000000
|
* DON'T DECREMENT PAST $000000
|
*
|
*
|
PREV LDX SECNUM+1
|
PREV LDX SECNUM+1
|
BNE PREV1
|
BNE PREV1
|
TST SECNUM
|
TST SECNUM
|
BEQ READS
|
BEQ READS
|
DEC SECNUM
|
DEC SECNUM
|
PREV1 LEAX -1,X
|
PREV1 LEAX -1,X
|
STX SECNUM+1
|
STX SECNUM+1
|
BRA READS
|
BRA READS
|
*
|
*
|
* READ SECTORS FROM CF
|
* READ SECTORS FROM CF
|
*
|
*
|
READ LDX #SECPMT
|
READ LDX #SECPMT
|
JSR PSTRNG
|
JSR PSTRNG
|
JSR IN6HEX
|
JSR IN6HEX
|
BVS RDEXIT
|
BVS RDEXIT
|
STB SECNUM
|
STB SECNUM
|
STX SECNUM+1
|
STX SECNUM+1
|
*
|
*
|
READS CLRA
|
READS CLRA
|
LDB #$01
|
LDB #$01
|
STD CF_SECCNT
|
STD CF_SECCNT
|
*
|
*
|
LDB SECNUM+2
|
LDB SECNUM+2
|
STD CF_SECNUM
|
STD CF_SECNUM
|
*
|
*
|
LDB SECNUM+1
|
LDB SECNUM+1
|
STD CF_CYLLO
|
STD CF_CYLLO
|
*
|
*
|
LDB SECNUM+0
|
LDB SECNUM+0
|
STD CF_CYLHI
|
STD CF_CYLHI
|
*
|
*
|
LDB #CMDREAD ; IDE READ MULTIPLE
|
LDB #CMDREAD ; IDE READ MULTIPLE
|
STD CF_COMAND
|
STD CF_COMAND
|
JSR WAITRDY
|
JSR WAITRDY
|
*
|
*
|
LDX #SECBUF
|
LDX #SECBUF
|
LDY #256
|
LDY #256
|
*
|
*
|
* READ LOOP
|
* READ LOOP
|
*
|
*
|
RDLOOP JSR WAITDRQ
|
RDLOOP JSR WAITDRQ
|
LDD CF_DATA ; reverse order of bytes
|
LDD CF_DATA ; reverse order of bytes
|
STB ,X+
|
STB ,X+
|
STA ,X+
|
STA ,X+
|
LEAY -1,Y
|
LEAY -1,Y
|
BNE RDLOOP
|
BNE RDLOOP
|
*
|
*
|
JSR WAITRDY
|
JSR WAITRDY
|
JSR MEMDUMP
|
JSR MEMDUMP
|
RDEXIT JMP CMDLP
|
RDEXIT JMP CMDLP
|
*
|
*
|
* WRITE SECTOR TO CF
|
* WRITE SECTOR TO CF
|
*
|
*
|
WRITE LDX #SECPMT
|
WRITE LDX #SECPMT
|
JSR PSTRNG
|
JSR PSTRNG
|
JSR IN6HEX
|
JSR IN6HEX
|
BVS WREXIT
|
BVS WREXIT
|
STB SECNUM
|
STB SECNUM
|
STX SECNUM+1
|
STX SECNUM+1
|
*
|
*
|
CLRA
|
CLRA
|
LDB #$01
|
LDB #$01
|
STD CF_SECCNT
|
STD CF_SECCNT
|
*
|
*
|
LDB SECNUM+2
|
LDB SECNUM+2
|
STD CF_SECNUM
|
STD CF_SECNUM
|
*
|
*
|
LDB SECNUM+1
|
LDB SECNUM+1
|
STD CF_CYLLO
|
STD CF_CYLLO
|
*
|
*
|
LDB SECNUM+0
|
LDB SECNUM+0
|
STD CF_CYLHI
|
STD CF_CYLHI
|
*
|
*
|
LDD #CMDWRITE; IDE WRITE MULTIPLE
|
LDD #CMDWRITE; IDE WRITE MULTIPLE
|
STD CF_COMAND
|
STD CF_COMAND
|
JSR WAITRDY
|
JSR WAITRDY
|
*
|
*
|
LDX #SECBUF
|
LDX #SECBUF
|
LDY #256
|
LDY #256
|
*
|
*
|
* WRITE LOOP
|
* WRITE LOOP
|
*
|
*
|
WRLOOP JSR WAITDRQ
|
WRLOOP JSR WAITDRQ
|
LDB ,X+ ; reverse order of bytes
|
LDB ,X+ ; reverse order of bytes
|
LDA ,X+
|
LDA ,X+
|
STD CF_DATA
|
STD CF_DATA
|
LEAY -1,Y
|
LEAY -1,Y
|
BNE WRLOOP
|
BNE WRLOOP
|
*
|
*
|
JSR WAITRDY
|
JSR WAITRDY
|
WREXIT JMP CMDLP
|
WREXIT JMP CMDLP
|
*
|
*
|
* WAIT UNTIL READY
|
* WAIT UNTIL READY
|
*
|
*
|
WAITRDY LDD CF_STATUS
|
WAITRDY LDD CF_STATUS
|
BITB #BUSY
|
BITB #BUSY
|
BNE WAITRDY
|
BNE WAITRDY
|
LDD CF_STATUS
|
LDD CF_STATUS
|
BITB #DRDY
|
BITB #DRDY
|
BEQ WAITRDY
|
BEQ WAITRDY
|
RTS
|
RTS
|
*
|
*
|
* WAIT FOR DATA REQUEST
|
* WAIT FOR DATA REQUEST
|
*
|
*
|
WAITDRQ LDD CF_STATUS
|
WAITDRQ LDD CF_STATUS
|
BITB #DRQ
|
BITB #DRQ
|
BEQ WAITDRQ
|
BEQ WAITDRQ
|
RTS
|
RTS
|
*
|
*
|
* DUMP SECTOR IN MEMORY
|
* DUMP SECTOR IN MEMORY
|
*
|
*
|
MEMDUMP LDX #SECMSG
|
MEMDUMP LDX #SECMSG
|
JSR PSTRNG
|
JSR PSTRNG
|
LDA SECNUM
|
LDA SECNUM
|
JSR OUT2H
|
JSR OUT2H
|
LDX SECNUM+1
|
LDX SECNUM+1
|
JSR OUT4H
|
JSR OUT4H
|
JSR PCRLF
|
JSR PCRLF
|
*
|
*
|
* Dump first 256 bytes
|
* Dump first 256 bytes
|
*
|
*
|
LDY #$0000
|
LDY #$0000
|
LEAX #$0FF,Y
|
LEAX #$0FF,Y
|
JSR AJDUMP
|
JSR AJDUMP
|
*
|
*
|
* Prompt to continue
|
* Prompt to continue
|
*
|
*
|
LDX #PAGMSG
|
LDX #PAGMSG
|
JSR PSTRNG
|
JSR PSTRNG
|
JSR INCH
|
JSR INCH
|
*
|
*
|
* Dump second 256 bytes
|
* Dump second 256 bytes
|
*
|
*
|
LDY #$0100
|
LDY #$0100
|
LEAX #$0FF,Y
|
LEAX #$0FF,Y
|
*
|
*
|
* ADJUST LOWER AND UPPER ADDRESS LIMITS
|
* ADJUST LOWER AND UPPER ADDRESS LIMITS
|
* TO EVEN 16 BYTE BOUNDRIES.
|
* TO EVEN 16 BYTE BOUNDRIES.
|
*
|
*
|
* IF LOWER ADDR = $4532
|
* IF LOWER ADDR = $4532
|
* LOWER BOUNDS WILL BE ADJUSTED TO = $4530.
|
* LOWER BOUNDS WILL BE ADJUSTED TO = $4530.
|
*
|
*
|
* IF UPPER ADDR = $4567
|
* IF UPPER ADDR = $4567
|
* UPPER BOUNDS WILL BE ADJUSTED TO = $4570.
|
* UPPER BOUNDS WILL BE ADJUSTED TO = $4570.
|
*
|
*
|
* ENTER WITH LOWER ADDRESS IN X-REG.
|
* ENTER WITH LOWER ADDRESS IN X-REG.
|
* -UPPER ADDRESS ON TOP OF STACK.
|
* -UPPER ADDRESS ON TOP OF STACK.
|
*
|
*
|
AJDUMP TFR X,D GET UPPER ADDR IN D-REG
|
AJDUMP TFR X,D GET UPPER ADDR IN D-REG
|
ADDD #$10 ADD 16 TO UPPER ADDRESS
|
ADDD #$10 ADD 16 TO UPPER ADDRESS
|
ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
|
ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
|
PSHS A,B SAVE ON STACK AS UPPER DUMP LIMIT
|
PSHS A,B SAVE ON STACK AS UPPER DUMP LIMIT
|
TFR Y,D $F9A5 GET LOWER ADDRESS IN D-REG
|
TFR Y,D $F9A5 GET LOWER ADDRESS IN D-REG
|
ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
|
ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
|
TFR D,X PUT IN X-REG AS LOWER DUMP LIMIT
|
TFR D,X PUT IN X-REG AS LOWER DUMP LIMIT
|
NXTLIN CMPX ,S COMPARE LOWER TO UPPER LIMIT
|
NXTLIN CMPX ,S COMPARE LOWER TO UPPER LIMIT
|
BEQ SKPDMP IF EQUAL SKIP HEX-ASCII DUMP
|
BEQ SKPDMP IF EQUAL SKIP HEX-ASCII DUMP
|
LBSR INCHEK CHECK FOR INPUT FROM KEYBOARD
|
LBSR INCHEK CHECK FOR INPUT FROM KEYBOARD
|
BEQ EDUMP
|
BEQ EDUMP
|
SKPDMP LEAS 2,S READJUST STACK IF NOT DUMPING
|
SKPDMP LEAS 2,S READJUST STACK IF NOT DUMPING
|
RTS ;
|
RTS ;
|
*
|
*
|
* PRINT 16 HEX BYTES FOLLOWED BY 16 ASCII CHARACTERS
|
* PRINT 16 HEX BYTES FOLLOWED BY 16 ASCII CHARACTERS
|
* FOR EACH LINE THROUGHOUT ADDRESS LIMITS.
|
* FOR EACH LINE THROUGHOUT ADDRESS LIMITS.
|
*
|
*
|
EDUMP PSHS X PUSH LOWER ADDR LIMIT ON STACK
|
EDUMP PSHS X PUSH LOWER ADDR LIMIT ON STACK
|
LDX #MSG5 POINT TO MSG " - "
|
LDX #MSG5 POINT TO MSG " - "
|
LBSR PSTRNG PRINT MSG
|
LBSR PSTRNG PRINT MSG
|
LDX ,S LOAD LOWER ADDR FROM TOP OF STACK
|
LDX ,S LOAD LOWER ADDR FROM TOP OF STACK
|
LBSR OUT4H PRINT THE ADDRESS
|
LBSR OUT4H PRINT THE ADDRESS
|
LBSR OUT2S 2 SPACES
|
LBSR OUT2S 2 SPACES
|
LDB #$10 LOAD COUNT OF 16 BYTES TO DUMP
|
LDB #$10 LOAD COUNT OF 16 BYTES TO DUMP
|
ELOOP LDA SECBUF,X GET FROM MEMORY HEX BYTE TO PRINT
|
ELOOP LDA SECBUF,X GET FROM MEMORY HEX BYTE TO PRINT
|
LEAX 1,X
|
LEAX 1,X
|
LBSR OUT2H OUTPUT HEX BYTE AS ASCII
|
LBSR OUT2H OUTPUT HEX BYTE AS ASCII
|
LBSR OUT1S OUTPUT SPACE
|
LBSR OUT1S OUTPUT SPACE
|
DECB $F9D1 DECREMENT BYTE COUNT
|
DECB $F9D1 DECREMENT BYTE COUNT
|
BNE ELOOP CONTINUE TIL 16 HEX BYTES PRINTED
|
BNE ELOOP CONTINUE TIL 16 HEX BYTES PRINTED
|
*
|
*
|
* PRINT 16 ASCII CHARACTERS
|
* PRINT 16 ASCII CHARACTERS
|
* IF NOT PRINTABLE OR NOT VALID
|
* IF NOT PRINTABLE OR NOT VALID
|
* ASCII PRINT A PERIOD (.)
|
* ASCII PRINT A PERIOD (.)
|
LBSR OUT2S 2 SPACES
|
LBSR OUT2S 2 SPACES
|
LDX ,S++ GET LOW LIMIT FRM STACK - ADJ STACK
|
LDX ,S++ GET LOW LIMIT FRM STACK - ADJ STACK
|
LDB #$10 SET ASCII CHAR TO PRINT = 16
|
LDB #$10 SET ASCII CHAR TO PRINT = 16
|
EDPASC LDA SECBUF,X GET CHARACTER FROM MEMORY
|
EDPASC LDA SECBUF,X GET CHARACTER FROM MEMORY
|
LEAX 1,X
|
LEAX 1,X
|
CMPA #$20 IF LESS THAN $20, NON-PRINTABLE?
|
CMPA #$20 IF LESS THAN $20, NON-PRINTABLE?
|
BCS PERIOD IF SO, PRINT PERIOD INSTEAD
|
BCS PERIOD IF SO, PRINT PERIOD INSTEAD
|
CMPA #$7E IS IT VALID ASCII?
|
CMPA #$7E IS IT VALID ASCII?
|
BLS PRASC IF SO PRINT IT
|
BLS PRASC IF SO PRINT IT
|
PERIOD LDA #'. LOAD A PERIOD (.)
|
PERIOD LDA #'. LOAD A PERIOD (.)
|
PRASC LBSR OUTCH PRINT ASCII CHARACTER
|
PRASC LBSR OUTCH PRINT ASCII CHARACTER
|
DECB DECREMENT COUNT
|
DECB DECREMENT COUNT
|
BNE EDPASC
|
BNE EDPASC
|
BRA NXTLIN
|
BRA NXTLIN
|
*
|
*
|
*
|
*
|
***** "M" MEMORY EXAMINE AND CHANGE *****
|
***** "M" MEMORY EXAMINE AND CHANGE *****
|
*
|
*
|
* RESTRICT ADDRESSING RANGE TO 512 BYTES ($000 - $1FF)
|
* RESTRICT ADDRESSING RANGE TO 512 BYTES ($000 - $1FF)
|
*
|
*
|
MEMCHG LDX #MEMMSG
|
MEMCHG LDX #MEMMSG
|
JSR PSTRNG
|
JSR PSTRNG
|
LBSR IN3HEX INPUT ADDRESS
|
LBSR IN3HEX INPUT ADDRESS
|
BVS CHRTN IF NOT HEX, RETURN
|
BVS CHRTN IF NOT HEX, RETURN
|
CMPX #$0200
|
CMPX #$0200
|
BHS CHRTN
|
BHS CHRTN
|
TFR X,Y SAVE ADDR IN "Y"
|
TFR X,Y SAVE ADDR IN "Y"
|
MEMC2 LDX #MSG5 POINT TO MSG " - "
|
MEMC2 LDX #MSG5 POINT TO MSG " - "
|
LBSR PSTRNG PRINT MSG
|
LBSR PSTRNG PRINT MSG
|
TFR Y,X FETCH ADDRESS
|
TFR Y,X FETCH ADDRESS
|
LBSR OUT4H PRINT ADDR IN HEX
|
LBSR OUT4H PRINT ADDR IN HEX
|
LBSR OUT1S OUTPUT SPACE
|
LBSR OUT1S OUTPUT SPACE
|
LDA SECBUF,Y GET CONTENTS OF CURRENT ADDR.
|
LDA SECBUF,Y GET CONTENTS OF CURRENT ADDR.
|
LBSR OUT2H OUTPUT CONTENTS IN ASCII
|
LBSR OUT2H OUTPUT CONTENTS IN ASCII
|
LBSR OUT1S OUTPUT SPACE
|
LBSR OUT1S OUTPUT SPACE
|
LBSR BYTE LOOP WAITING FOR OPERATOR INPUT
|
LBSR BYTE LOOP WAITING FOR OPERATOR INPUT
|
BVC CHANGE IF VALID HEX GO CHANGE MEM. LOC.
|
BVC CHANGE IF VALID HEX GO CHANGE MEM. LOC.
|
CMPA #8 IS IT A BACKSPACE (CNTRL H)?
|
CMPA #8 IS IT A BACKSPACE (CNTRL H)?
|
BEQ MEMC2 PROMPT OPERATOR AGAIN
|
BEQ MEMC2 PROMPT OPERATOR AGAIN
|
CMPA #$18 IS IT A CANCEL (CNTRL X)?
|
CMPA #$18 IS IT A CANCEL (CNTRL X)?
|
BEQ MEMC2 PROMPT OPERATOR AGAIN
|
BEQ MEMC2 PROMPT OPERATOR AGAIN
|
CMPA #'^ IS IT AN UP ARROW?
|
CMPA #'^ IS IT AN UP ARROW?
|
BEQ BACK DISPLAY PREVIOUS BYTE
|
BEQ BACK DISPLAY PREVIOUS BYTE
|
CMPA #$D IS IT A CR?
|
CMPA #$D IS IT A CR?
|
BNE FORWRD DISPLAY NEXT BYTE
|
BNE FORWRD DISPLAY NEXT BYTE
|
CHRTN RTS EXIT ROUTINE
|
CHRTN RTS EXIT ROUTINE
|
*
|
*
|
*
|
*
|
CHANGE STA SECBUF,Y CHANGE BYTE IN MEMORY
|
CHANGE STA SECBUF,Y CHANGE BYTE IN MEMORY
|
CMPA SECBUF,Y DID MEMORY BYTE CHANGE?
|
CMPA SECBUF,Y DID MEMORY BYTE CHANGE?
|
BEQ FORWRD $F972
|
BEQ FORWRD $F972
|
LBSR OUT1S OUTPUT SPACE
|
LBSR OUT1S OUTPUT SPACE
|
LDA #'? LOAD QUESTION MARK
|
LDA #'? LOAD QUESTION MARK
|
LBSR OUTCH PRINT IT
|
LBSR OUTCH PRINT IT
|
FORWRD CMPY #$01FF
|
FORWRD CMPY #$01FF
|
BEQ MEMC2
|
BEQ MEMC2
|
LEAY 1,Y POINT TO NEXT HIGHER MEM LOCATION
|
LEAY 1,Y POINT TO NEXT HIGHER MEM LOCATION
|
BRA MEMC2 PRINT LOCATION & CONTENTS
|
BRA MEMC2 PRINT LOCATION & CONTENTS
|
BACK CMPY #$0000
|
BACK CMPY #$0000
|
BEQ MEMC2
|
BEQ MEMC2
|
LEAY -1,Y POINT TO LAST MEM LOCATION
|
LEAY -1,Y POINT TO LAST MEM LOCATION
|
BRA MEMC2 PRINT LOCATION & CONTENTS
|
BRA MEMC2 PRINT LOCATION & CONTENTS
|
*
|
*
|
* THE FOLLOWING ROUTINE LOOPS WAITING FOR THE
|
* THE FOLLOWING ROUTINE LOOPS WAITING FOR THE
|
* OPERATOR TO INPUT ONE VALID HEX ADDRESS. THE
|
* OPERATOR TO INPUT ONE VALID HEX ADDRESS. THE
|
* ADDRESS IS RETURNED IN THE "X" REGISTER.
|
* ADDRESS IS RETURNED IN THE "X" REGISTER.
|
*
|
*
|
* IN6HEX - MS BYTE IN ACCB
|
* IN6HEX - MS BYTE IN ACCB
|
* LS WORD IN X REG
|
* LS WORD IN X REG
|
*
|
*
|
IN6HEX LEAS -3,S
|
IN6HEX LEAS -3,S
|
BSR BYTE
|
BSR BYTE
|
BVS NOTHEX
|
BVS NOTHEX
|
STA 0,S
|
STA 0,S
|
BSR BYTE
|
BSR BYTE
|
BVS NOTHEX
|
BVS NOTHEX
|
STA 1,S
|
STA 1,S
|
BSR BYTE
|
BSR BYTE
|
BVS NOTHEX
|
BVS NOTHEX
|
STA 2,S
|
STA 2,S
|
CLRA
|
CLRA
|
PULS B,X,PC
|
PULS B,X,PC
|
*
|
*
|
* INPUT 3 HEX DIGITS
|
* INPUT 3 HEX DIGITS
|
* RESULT RETURNED IN X
|
* RESULT RETURNED IN X
|
*
|
*
|
IN3HEX BSR INHEX INPUT HEX (1 HEX CHAR)
|
IN3HEX BSR INHEX INPUT HEX (1 HEX CHAR)
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
TFR D,X
|
TFR D,X
|
BSR BYTE INPUT BYTE (2 HEX CHAR)
|
BSR BYTE INPUT BYTE (2 HEX CHAR)
|
BVS NOTHEX
|
BVS NOTHEX
|
PSHS X
|
PSHS X
|
STA 1,S
|
STA 1,S
|
PULS X,PC
|
PULS X,PC
|
*
|
*
|
***** INPUT BYTE (2 HEX CHAR.) *****
|
***** INPUT BYTE (2 HEX CHAR.) *****
|
*
|
*
|
BYTE BSR INHEX GET HEX LEFT
|
BYTE BSR INHEX GET HEX LEFT
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
ASLA ;
|
ASLA ;
|
ASLA ;
|
ASLA ;
|
ASLA ; SHIFT INTO LEFT NIBBLE
|
ASLA ; SHIFT INTO LEFT NIBBLE
|
ASLA ;
|
ASLA ;
|
TFR A,B PUT HEXL IN "B"
|
TFR A,B PUT HEXL IN "B"
|
BSR INHEX GET HEX RIGHT
|
BSR INHEX GET HEX RIGHT
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
BVS NOTHEX EXIT IF NOT VALID HEX
|
PSHS B PUSH HEXL ON STACK
|
PSHS B PUSH HEXL ON STACK
|
ADDA ,S+ ADD HEXL TO HEXR AND ADJ. STK
|
ADDA ,S+ ADD HEXL TO HEXR AND ADJ. STK
|
RTS RETURN WITH HEX L&R IN "A"
|
RTS RETURN WITH HEX L&R IN "A"
|
*
|
*
|
*
|
*
|
INHEX BSR ECHON INPUT ASCII CHAR.
|
INHEX BSR ECHON INPUT ASCII CHAR.
|
CMPA #'0 IS IT > OR = "0" ?
|
CMPA #'0 IS IT > OR = "0" ?
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
CMPA #'9 IS IT < OR = "9" ?
|
CMPA #'9 IS IT < OR = "9" ?
|
BHI INHEXA IF > MAYBE IT'S ALPHA
|
BHI INHEXA IF > MAYBE IT'S ALPHA
|
SUBA #$30 ASCII ADJ. NUMERIC
|
SUBA #$30 ASCII ADJ. NUMERIC
|
RTS ;
|
RTS ;
|
*
|
*
|
*
|
*
|
INHEXA CMPA #'A IS IT > OR = "A"
|
INHEXA CMPA #'A IS IT > OR = "A"
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
CMPA #'F IS IT < OR = "F" ?
|
CMPA #'F IS IT < OR = "F" ?
|
BHI INHEXL IF > IT AIN'T HEX
|
BHI INHEXL IF > IT AIN'T HEX
|
SUBA #$37 ASCII ADJ. ALPHA
|
SUBA #$37 ASCII ADJ. ALPHA
|
RTS ;
|
RTS ;
|
*
|
*
|
INHEXL CMPA #'a IS IT > OR = "a"
|
INHEXL CMPA #'a IS IT > OR = "a"
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
BCS NOTHEX IF LESS IT AIN'T HEX
|
CMPA #'f IS IT < "f"
|
CMPA #'f IS IT < "f"
|
BHI NOTHEX IF > IT AIN'T HEX
|
BHI NOTHEX IF > IT AIN'T HEX
|
SUBA #$57 ADJUST TO LOWER CASE
|
SUBA #$57 ADJUST TO LOWER CASE
|
RTS ;
|
RTS ;
|
*
|
*
|
*
|
*
|
NOTHEX ORCC #2 SET (V) FLAG IN C-CODES REGISTER
|
NOTHEX ORCC #2 SET (V) FLAG IN C-CODES REGISTER
|
RTS ;
|
RTS ;
|
*
|
*
|
*
|
*
|
OUT4H PSHS X PUSH X-REG. ON THE STACK
|
OUT4H PSHS X PUSH X-REG. ON THE STACK
|
PULS A POP MS BYTE OF X-REG INTO A-ACC.
|
PULS A POP MS BYTE OF X-REG INTO A-ACC.
|
BSR OUTHL OUTPUT HEX LEFT
|
BSR OUTHL OUTPUT HEX LEFT
|
PULS A POP LS BYTE OF X-REG INTO A-ACC.
|
PULS A POP LS BYTE OF X-REG INTO A-ACC.
|
OUTHL EQU *
|
OUTHL EQU *
|
OUT2H PSHS A SAVE IT BACK ON STACK
|
OUT2H PSHS A SAVE IT BACK ON STACK
|
LSRA CONVERT UPPER HEX NIBBLE TO ASCII
|
LSRA CONVERT UPPER HEX NIBBLE TO ASCII
|
LSRA ;
|
LSRA ;
|
LSRA ;
|
LSRA ;
|
LSRA ;
|
LSRA ;
|
BSR XASCII PRINT HEX NIBBLE AS ASCII
|
BSR XASCII PRINT HEX NIBBLE AS ASCII
|
OUTHR PULS A CONVERT LOWER HEX NIBBLE TO ASCII
|
OUTHR PULS A CONVERT LOWER HEX NIBBLE TO ASCII
|
ANDA #$0F STRIP LEFT NIBBLE
|
ANDA #$0F STRIP LEFT NIBBLE
|
XASCII ADDA #$30 ASCII ADJ
|
XASCII ADDA #$30 ASCII ADJ
|
CMPA #$39 IS IT < OR = "9" ?
|
CMPA #$39 IS IT < OR = "9" ?
|
BLE OUTC IF LESS, OUTPUT IT
|
BLE OUTC IF LESS, OUTPUT IT
|
ADDA #7 IF > MAKE ASCII LETTER
|
ADDA #7 IF > MAKE ASCII LETTER
|
OUTC BRA OUTCH OUTPUT CHAR
|
OUTC BRA OUTCH OUTPUT CHAR
|
*
|
*
|
* BINARY / ASCII --- THIS ROUTINE
|
* BINARY / ASCII --- THIS ROUTINE
|
* OUTPUTS A BYTE IN ENHANCED
|
* OUTPUTS A BYTE IN ENHANCED
|
* BINARY FORMAT. THE ENHANCEMENT
|
* BINARY FORMAT. THE ENHANCEMENT
|
* IS DONE BY SUBSTITUTING ASCII
|
* IS DONE BY SUBSTITUTING ASCII
|
* LETTERS FOR THE ONES IN THE BYTE.
|
* LETTERS FOR THE ONES IN THE BYTE.
|
* THE ASCII ENHANCEMENT LETTERS
|
* THE ASCII ENHANCEMENT LETTERS
|
* ARE OBTAINED FROM THE STRING
|
* ARE OBTAINED FROM THE STRING
|
* POINTED TO BY THE INDEX REG. "X".
|
* POINTED TO BY THE INDEX REG. "X".
|
*
|
*
|
BIASCI PSHS A SAVE "A" ON STACK
|
BIASCI PSHS A SAVE "A" ON STACK
|
LDB #8 PRESET LOOP# TO BITS PER BYTE
|
LDB #8 PRESET LOOP# TO BITS PER BYTE
|
OUTBA LDA ,X+ GET LETTER FROM STRING
|
OUTBA LDA ,X+ GET LETTER FROM STRING
|
ASL ,S TEST BYTE FOR "1" IN B7
|
ASL ,S TEST BYTE FOR "1" IN B7
|
BCS PRTBA IF ONE PRINT LETTER
|
BCS PRTBA IF ONE PRINT LETTER
|
LDA #'- IF ZERO PRINT "-"
|
LDA #'- IF ZERO PRINT "-"
|
PRTBA BSR OUTCH PRINT IT
|
PRTBA BSR OUTCH PRINT IT
|
BSR OUT1S PRINT SPACE
|
BSR OUT1S PRINT SPACE
|
DECB SUB 1 FROM #BITS YET TO PRINT
|
DECB SUB 1 FROM #BITS YET TO PRINT
|
BNE OUTBA
|
BNE OUTBA
|
PULS A,PC
|
PULS A,PC
|
*
|
*
|
* PRINT STRING PRECEEDED BY A CR & LF.
|
* PRINT STRING PRECEEDED BY A CR & LF.
|
*
|
*
|
PSTRNG JMP [PSTRGV] PRINT CR/LF
|
PSTRNG JMP [PSTRGV] PRINT CR/LF
|
*
|
*
|
* PCRLF
|
* PCRLF
|
*
|
*
|
PCRLF JMP [PCRLFV]
|
PCRLF JMP [PCRLFV]
|
*
|
*
|
* PDATA
|
* PDATA
|
*
|
*
|
PDATA JMP [PDATAV]
|
PDATA JMP [PDATAV]
|
*
|
*
|
ECHON TST ECHO IS ECHO REQUIRED ?
|
ECHON TST ECHO IS ECHO REQUIRED ?
|
BEQ INCH ECHO NOT REQ. IF CLEAR
|
BEQ INCH ECHO NOT REQ. IF CLEAR
|
*
|
*
|
* INCHE
|
* INCHE
|
*
|
*
|
* ---GETS CHARACTER FROM TERMINAL AND
|
* ---GETS CHARACTER FROM TERMINAL AND
|
* ECHOS SAME. THE CHARACTER IS RETURNED
|
* ECHOS SAME. THE CHARACTER IS RETURNED
|
* IN THE "A" ACCUMULATOR WITH THE PARITY
|
* IN THE "A" ACCUMULATOR WITH THE PARITY
|
* BIT MASKED OFF. ALL OTHER REGISTERS
|
* BIT MASKED OFF. ALL OTHER REGISTERS
|
* ARE PRESERVED.
|
* ARE PRESERVED.
|
*
|
*
|
INCHE JMP [INCHEV]
|
INCHE JMP [INCHEV]
|
*
|
*
|
* INCH
|
* INCH
|
*
|
*
|
* GET CHARACTER FROM TERMINAL. RETURN
|
* GET CHARACTER FROM TERMINAL. RETURN
|
* CHARACTER IN "A" ACCUMULATOR AND PRESERVE
|
* CHARACTER IN "A" ACCUMULATOR AND PRESERVE
|
* ALL OTHER REGISTERS. THE INPUT CHARACTER
|
* ALL OTHER REGISTERS. THE INPUT CHARACTER
|
* IS 8 BITS AND IS NOT ECHOED.
|
* IS 8 BITS AND IS NOT ECHOED.
|
*
|
*
|
*
|
*
|
INCH JMP [INCHV]
|
INCH JMP [INCHV]
|
*
|
*
|
* INCHEK
|
* INCHEK
|
*
|
*
|
* CHECK FOR A CHARACTER AVAILABLE FROM
|
* CHECK FOR A CHARACTER AVAILABLE FROM
|
* THE TERMINAL. THE SERIAL PORT IS CHECKED
|
* THE TERMINAL. THE SERIAL PORT IS CHECKED
|
* FOR READ READY. ALL REGISTERS ARE
|
* FOR READ READY. ALL REGISTERS ARE
|
* PRESERVED, AND THE "Z" BIT WILL BE
|
* PRESERVED, AND THE "Z" BIT WILL BE
|
* CLEAR IF A CHARACTER CAN BE READ.
|
* CLEAR IF A CHARACTER CAN BE READ.
|
*
|
*
|
*
|
*
|
INCHEK JMP [INCHEKV]
|
INCHEK JMP [INCHEKV]
|
*
|
*
|
OUT2S BSR OUT1S OUTPUT 2 SPACES
|
OUT2S BSR OUT1S OUTPUT 2 SPACES
|
OUT1S LDA #$20 OUTPUT 1 SPACE
|
OUT1S LDA #$20 OUTPUT 1 SPACE
|
*
|
*
|
*
|
*
|
* OUTCH
|
* OUTCH
|
*
|
*
|
* OUTPUT CHARACTER TO TERMINAL.
|
* OUTPUT CHARACTER TO TERMINAL.
|
* THE CHAR. TO BE OUTPUT IS
|
* THE CHAR. TO BE OUTPUT IS
|
* PASSED IN THE A REGISTER.
|
* PASSED IN THE A REGISTER.
|
* ALL REGISTERS ARE PRESERVED.
|
* ALL REGISTERS ARE PRESERVED.
|
*
|
*
|
OUTCH JMP [OUTCHV]
|
OUTCH JMP [OUTCHV]
|
*
|
*
|
* MESSAGE STRINGS
|
* MESSAGE STRINGS
|
*
|
*
|
TTLMSG FCB $0A,$0D
|
TTLMSG FCB $0A,$0D
|
FCC "COMPACT FLASH SECTOR READ/WRITE UTILITY"
|
FCC "COMPACT FLASH SECTOR READ/WRITE UTILITY"
|
FCB $04
|
FCB $04
|
CMDMSG FCB $0D,$0A
|
CMDMSG FCB $0D,$0A
|
FCC "(R) READ SECTOR "
|
FCC "(R) READ SECTOR "
|
FCC "(W) WRITE SECTOR "
|
FCC "(W) WRITE SECTOR "
|
FCB $0D,$0A
|
FCB $0D,$0A
|
FCC "(N) NEXT SECTOR "
|
FCC "(N) NEXT SECTOR "
|
FCC "(P) PREV SECTOR "
|
FCC "(P) PREV SECTOR "
|
FCB $0D,$0A
|
FCB $0D,$0A
|
FCC "(M) MODIFY SECTOR "
|
FCC "(M) MODIFY SECTOR "
|
FCC "(Q) QUIT "
|
FCC "(Q) QUIT "
|
FCB $0D,$0A
|
FCB $0D,$0A
|
FCC ": "
|
FCC ": "
|
FCB $04
|
FCB $04
|
SECPMT FCC "SECTOR NUMBER (6 HEX) : "
|
SECPMT FCC "SECTOR NUMBER (6 HEX) : "
|
FCB $04
|
FCB $04
|
SECMSG FCC "SECTOR NUMBER - $"
|
SECMSG FCC "SECTOR NUMBER - $"
|
FCB $04
|
FCB $04
|
MEMMSG FCB $0D,$0A
|
MEMMSG FCB $0D,$0A
|
FCC "MEMORY ADDRESS (3 HEX): "
|
FCC "MEMORY ADDRESS (3 HEX): "
|
FCB $04
|
FCB $04
|
MSG5 FCC " - "
|
MSG5 FCC " - "
|
FCB $04
|
FCB $04
|
MSG2 FCB $00,$00,$0A,$0D,$00,$00,$00,$04
|
MSG2 FCB $00,$00,$0A,$0D,$00,$00,$00,$04
|
WOTMSG FCC "What ?"
|
WOTMSG FCC "What ?"
|
FCB $0D,$0A,$04
|
FCB $0D,$0A,$04
|
PAGMSG FCB $0D,$0A
|
PAGMSG FCB $0D,$0A
|
FCC "Hit any key to continue"
|
FCC "Hit any key to continue"
|
FCB $04
|
FCB $04
|
*
|
*
|
END START
|
END START
|
|
|
