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AppleIIAsm-Collection/source/disk18_demos_utils/T.MINIFY

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Rev 0.4 updates Massive updates that changes the way most subroutines are handled. Major bugfixes, various utilities added, started higher-level libraries.
2019-04-26 22:49:10 +00:00
********************************
* *
* ASSEMBLY LISTING MINIFIER *
* *
* A PROGRAM THAT REMOVES *
* COMMENTS FROM ASSEMBLY CODE. *
* *
********************************
*
** ASSEMBLER DIRECTIVES
*
CYC AVE
EXP OFF
DSK MINIFY
TR ON
OBJ $BFE0
ORG $7000
*
********************************
* *
* HEADER, HOOKS AND MACROS *
* *
********************************
*
PUT MIN.VARS.REQUIRED
USE MIN.MAC.REQUIRED
PUT MIN.HOOKS.REQUIRED
USE MIN.MAC.STDIO
PUT MIN.HOOKS.STDIO
USE MIN.MAC.FILEIO
PUT MIN.HOOKS.FILEIO
USE MIN.MAC.STRINGS
PUT MIN.HOOKS.STRINGS
*
********************************
* *
* MAIN PROGRAM LOOP *
* *
********************************
*
BEGIN
*
JSR INIT
JSR GETNAMES
JSR DELMIN
JMP FCOPY
*
JMP REENTRY
*
********************************
* *
* INIT *
* *
********************************
*
INIT
*
** RESET ERROR HANDLING
*
AMODE
LDA #$00
STA $D8
*
LDA #21 ; SEND ^U TO COUT TO
JSR COUT ; ENSURE 40COL MODE
LDA #00
STA ADDT
STA WRITEOFF
RTS
*
********************************
* *
* GETNAMES *
* *
********************************
*
GETNAMES
*
JSR HOME
PRN "ASSEMBLY CODE MINIFIER",8D
PRN "======================",8D8D
PRN "THIS PROGRAM STRIPS A",8D
PRN "PROGRAM OF ITS COMMENTS",8D
PRN "AND STORES THE RESULTING",8D
PRN "FILE WIN A MIN. PREFIX.",8D8D
*
:QUERY
PRN "FILE TO MINIFY ",8D
PRN "(RETURN FOR CATALOG): "
INP
LDA RETLEN
CMP #0 ; IF NOT JUST CR, THEN
BNE :NAMES ; GO TO NAMES
CMD "CATALOG" ; OTHERWISE, CAT
PRN " ",8D
JMP :QUERY
:NAMES
GRET SNAME
GRET DNAME
*
** NEED TO CHECK IF STARTING WITH T.; IF SO, INSERT
** MIN. AFTER T. OTHERWISE, JUST PREFIX.
*
SPOS SNAME;"T."
LDA RETURN
CMP #1 ; IF STRING BEGINS WITH "T."
BNE :CONTN ; DELETE T. FROM STRING
SDEL DNAME;#1;#2
LDA #$FF
STA ADDT
:CONTN
SCAT "MIN.";DNAME;#30
LDA RETLEN
GRET DNAME ; SCAT PUTS LENGTH BYTE
; IN RETURN AS WELL AS RETLEN
*
** NOW ADD BACK "T." PREFIX IF NEEDED
*
LDA ADDT
CMP #$FF
BNE SKIPT
SCAT "T.";DNAME;#30
GRET DNAME
SKIPT
RTS
*
********************************
* *
* DELMIN *
* *
********************************
*
DELMIN
*
** HIJACK ERROR HANDLING
*
LDA #$FF
STA $D8
*
** SET ERROR CONTROL TO CONTINUE
** FILE TO DELETE DOESN'T EXIST
*
LDA #<:DELCONT
STA $9D5A
LDA #>:DELCONT
STA $9D5B
*
SCAT "DELETE ";DNAME;#50 ; DELETE PREVIOUS IF EXISTS
CMD RETURN
*
:DELCONT
RTS
*
********************************
* *
* MAIN FILE COPY LOOP *
* *
********************************
*
FCOPY
*
PRN "MINIFYING...",8D8D
*
JSR SETFILEERR
JSR OPENFILES
*
** THE FOLLOWING LOOP ENDS WHEN
** THE END OF THE SOURCE FILE
** IS REACHED, PROMPTING AN ERROR
** THAT GETS HANDLED BY FCLOSE
*
:COPYLOOP
JSR READSRC
JSR CHKCOMMENT
JSR WRITEDEST
:LOOPEND JMP :COPYLOOP
*
********************************
* *
* SETFILEERR *
* *
********************************
*
SETFILEERR
*
** SET ERROR CONTROL TO FILE CLOSING ROUTINE
*
LDA #<FCLOSE
STA $9D5A
LDA #>FCLOSE
STA $9D5B
RTS
*
********************************
* *
* OPENFILES *
* *
********************************
*
OPENFILES
*
** OPEN SOURCE AND DESTINATION FILES
*
SCAT "OPEN ";SNAME;#80
CMD RETURN
SCAT "OPEN ";DNAME;#80
CMD RETURN
RTS
*
********************************
* *
* READSRC *
* *
********************************
*
READSRC
*
** CLEAR BUFFER POINTER, SET TO READ SOURCE
*
LDA #1
STA CCNT
SCAT "READ ";SNAME;#80
CMD RETURN
:LP
GKEY ; ASCII CHAR STORED IN .A
LDY CCNT
STA LINE,Y
CMP #$8D ; IS THIS A CARRIAGE RETURN?
BEQ :XLP ; YES, EXIT LOOP
INC CCNT ; INCREASE BUFFER POINTER
JMP :LP ; KEEP ON READING
:XLP
LDA CCNT
STA LINE
RTS
*
********************************
* *
* CHKCOMMENT *
* *
********************************
*
CHKCOMMENT
*
** NOW CHECK IF LINE BEGINS WITH *
*
LDA LINE+1
CMP #170 ; * CHARACTER
BNE :SEMITEST
LDA #$FF
STA WRITEOFF
*
:SEMITEST
*
** NOW TEST FOR SUBSTRING " ; "
*
LDA LINE ; START AT END OF STRING
STA CCNT
DEC CCNT
*
:SEMILP
LDY CCNT
LDA LINE,Y
CMP #$BB ; ";" CHARACTER
BEQ :SEMIF
CPY #0
BEQ :XSEMILP
DEC CCNT
JMP :SEMILP
*
:SEMIF
LDY CCNT
INY
LDA LINE,Y
CMP #$20 ; IS NEXT CHAR A SPACE?
BNE :XSEMILP
LDA #$8D
LDY CCNT
STA LINE,Y
:XSEMILP
RTS
*
********************************
* *
* WRITEDEST *
* *
********************************
*
WRITEDEST
*
LDA WRITEOFF
CMP #$FF
BEQ :XWLP
*
** CLEAR COUNTER, SET TO WRITE DEST
*
LDA #1
STA CCNT
SCAT "WRITE ";DNAME;#80
CMD RETURN
*
:WLP ; WRITE LOOP
LDY CCNT
LDA LINE,Y
CMP #$8D ; WAS IT A CR?
BEQ :XWLP ; YEP, EXIT LOOP
JSR FCOUT ; PRINT TO FILE
INC CCNT
JMP :WLP
:XWLP
LDA #00
STA WRITEOFF
RTS
*
********************************
* *
* FCLOSE *
* *
********************************
*
FCLOSE
*
** NOW CLOSE SOURCE AND DESTINATION FILES
** AFTER END OF FILE ERROR
*
SCAT "CLOSE ";SNAME;#80
CMD RETURN
*
SCAT "CLOSE ";DNAME;#80
CMD RETURN
*
PRN "DONE!",8D8D
PRN "WOULD YOU LIKE TO MINIFY ANOTHER? "
INP
LDA RETURN+1
CMP #217 ; 'Y' LETTER
BNE FIN
PLA
PLA
PLA
JMP BEGIN
FIN
*
PLA
PLA
JMP REENTRY
*
********************************
* *
* VARIABLES *
* *
********************************
*
SNAME DS 40 ; SOURCE FILE NAME
DNAME DS 40 ; DEST FILE NAME
CCNT DS 2 ; SECOND COUNTER
TEMP DS 2
WRITEOFF DS 2
ADDT HEX 00
LINE DS 200
*
********************************
* *
* LOW-LEVEL ROUTINES *
* *
********************************
*
PUT MIN.LIB.REQUIRED
*
** INDIVIDUAL SUBROUTINES
*
*** STRINGS
*
PUT MIN.SUB.STRCAT
PUT MIN.SUB.SUBPOS
PUT MIN.SUB.PRNSTR
PUT MIN.SUB.SUBDEL
*
*** STDIO
*
PUT MIN.SUB.DPRINT
PUT MIN.SUB.XPRINT
PUT MIN.SUB.SINPUT
*
*** FILEIO
*
PUT MIN.SUB.DOSCMD
PUT MIN.SUB.FINPUT
PUT MIN.SUB.FPRINT
PUT MIN.SUB.FPSTR
*
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