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BYTEMOV.ASM
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Assembly Source File
|
1984-04-29
|
4KB
|
242 lines
;----------------------------------------------------
;
; BYTESAVER EPROM PROGRAMMER CONTROL PROGRAM
;
; VERSION 0.2 - 10 SEP 77
;
; COPYRIGHT 1977
;
; JEFFREY W. SHOOK
; P. O. BOX 185
; ROCKY POINT, NEW YORK 11778
;
;-----------------------------------------------------
; SYMBOL DEFINITIONS
BDOS EQU 5 ; CP/M BDOS ENTRY POINT
RCON EQU 1
WCONB EQU 9
CR EQU 0DH ; ASCII CARRIAGE RETURN
LF EQU 0AH ; ASCII LINE FEED
STATL EQU 0FFH ; IMSAI CONSOLE STATUS LED'S
BYTSAV EQU 0E000H ; BYTESAVER START ADDRESS
NPASS EQU 128 ; NUMBER OF PROGRAMMING PASSES
; THIS VALUE FOR BYTESAVER WITH
; 1.0 MSEC. PROGRAM PULSE
BEGDAT EQU 1000H ; START OF DATA FOR EPROMS
; MAIN PROGRAM CODE
ORG 100H ; CP/M STARTS EXECUTION HERE
LXI H,0 ; SAVE CP/M STACK
DAD SP
SHLD SPSAV
LXI SP,STACK
MVI A,0FFH ; CLEAR CONSOLE STATUS LED'S
OUT STATL
CALL PTITLE ; PRINT TITLE
CALL RANGE ; GET EPROM ADDRESS RANGE
CALL ERASED ; CHECK IF PROMS ERASED
PROG: CALL PROGRM ; BURN IN EPROMS
CALL COMPAR ; CHECK IF TRANSFER CORRECT
ORA A ; CHECK IF EPROMS CORRECT
JNZ GOCPM
MVI C,WCONB ; TRY PROGRAMMING AGAIN?
LXI D,MSG1
CALL BDOS
JMP NEXT1
MSG1: DB 'TRY AGAIN ? ',CR,LF,'$'
NEXT1: CALL INCH
CPI 'Y'
JZ PROG
GOCPM: LHLD SPSAV ; RETURN TO CP/M
SPHL
JMP BDOS
; FUNCTION SUBROUTINES
PTITLE: MVI C,WCONB ; PRINT PROGRAM TITLE
LXI D,MSG2
CALL BDOS
JMP NEXT2
MSG2: DB CR,LF,CR,LF
DB 'BYTMOV VERSION 0.2',CR,LF,'$'
NEXT2: RET
RANGE:LXI D,MSG3
CALL PRTMSG
JMP NEXT3
MSG3: DB CR,LF,'EPROM SOCKET POSITION (0 - 7)',CR,LF
DB 'FIRST? ','$'
NEXT3: CALL INHEX
JC RANGE
CPI 8
JNC RANGE
MVI L,0
MOV H,A
DAD H
DAD H
LXI D,BYTSAV
DAD D
SHLD BEGPRM
LXI D,MSG4
CALL PRTMSG
JMP NEXT4
MSG4: DB CR,LF,'LAST ? ','$'
NEXT4: CALL INHEX
JC RANGE
CPI 8
JNC RANGE
INR A
MOV H,A
MVI L,0
DAD H
DAD H
LXI D,BYTSAV
DAD D
SHLD ENDPRM
RET
ERASED: LHLD BEGPRM
ERASE1: MOV A,M
CPI 0FFH
JNZ ERASE2
INX H
LDA ENDPRM+1
CMP H
JNZ ERASE1
LXI D,MSG5
JMP ERASE3
ERASE2: LXI D,MSG6
ERASE3: CALL PRTMSG
RET
MSG5: DB CR,LF,CR,LF
DB 'EPROMS ARE ERASED.',CR,LF,'$'
MSG6: DB CR,LF,CR,LF
DB 'EPROMS NOT ERASED!',CR,LF,'$'
PROGRM: LXI D,MSG7
CALL PRTMSG
CALL INCH
CPI CR
JNZ PROGRM
LXI D,MSG8
CALL PRTMSG
LXI B,NPASS
MOV A,B
CMA
OUT STATL
PROGR2: PUSH B
LXI D,BEGDAT
LHLD BEGPRM
PROGR3: LDAX D
MOV M,A
INX D
INX H
LDA ENDPRM+1
CMP H
JNZ PROGR3
POP B ; GET PASS COUNT
DCX B
MOV A,C ; DSIPLAY COUNT ON STATUS LIGHTS
CMA
OUT STATL
MOV A,B ; CHECK FOR PASSES = 0
ORA C
JNZ PROGR2 ; LOOP IF NOT LAST PASS
LXI D,MSG9
CALL PRTMSG
PROGR5: CALL INCH
CPI CR
JNZ PROGR5
RET
MSG7: DB CR,LF
DB 'TURN PROGRAM POWER ON',CR,LF
DB 'TYPE CR TO CONTINUE ','$'
MSG8: DB CR,LF,CR,LF
DB 'PROGRAMMING NOW IN PROGRESS',CR,LF
DB 'PLEASE WAIT 2 MINUTES PER EPROM'
DB CR,LF,CR,LF,'$'
MSG9: DB 'PROGRAMMING COMPLETE',CR,LF
DB 'TURN PROGRAM POWER OFF',CR,LF
DB 'TYPE CR TO CONTINUE',CR,LF,'$'
COMPAR: LXI D,BEGDAT
LHLD BEGPRM
COMPA1: LDAX D
CMP M
JNZ COMPA2
INX H
INX D
LDA ENDPRM+1
CMP H
JNZ COMPA1
LXI D,MSG10
MVI A,0FFH ; MARK CORRECT
PUSH PSW
JMP COMPA3
COMPA2 LXI D,MSG11
MVI A,0 ; MARK ERROR
PUSH PSW
COMPA3: CALL PRTMSG
POP PSW ; GET SUCCESS CODE
RET
MSG10: DB 'EPROMS CORRECTLY PROGRAMMED',CR,LF,'$'
MSG11: DB 'EPROM COMPARE ERROR!',CR,LF,'$'
PRTMSG: MVI C,WCONB ; PRINT MESSAGE ON CONSOLE
CALL BDOS
RET
INHEX: CALL INCH
SBI '0'
JC INHEX2
CPI 10
JC INHEX1
SBI '@'-'9'
INHEX1: CPI 16
JNC INHEX2
ORA A
RET
INHEX2: XRA A
STC
RET
INCH: PUSH B ! PUSH D ! PUSH H
MVI C,RCON
CALL BDOS
POP H ! POP D ! POP B
RET
; STORAGE ALLOCATIONS
BEGPRM: DS 2 ; EPROM START ADDRESS
ENDPRM: DS 2 ; EPROM END ADDRESS
SPSAV: DS 2 ; CP/M STACK POINTER
DS 128 ; PROGRAM STACK AREA
STACK: DS 2
END