Compare commits
21 Commits
dbe297437a
...
b13e02601b
Author | SHA1 | Date |
---|---|---|
Bill Chatfield | b13e02601b | |
Bill Chatfield | a6805deddd | |
Bill Chatfield | 0add3cc9d7 | |
Bill Chatfield | 8ace07d469 | |
Bill Chatfield | fc9eeda779 | |
Bill Chatfield | 66afbd8512 | |
Bill Chatfield | e5bb256cbc | |
Bill Chatfield | 5e7e35e72a | |
Bill Chatfield | 7b76c77080 | |
Bill Chatfield | 7291a3bf3d | |
Bill Chatfield | 7c803937da | |
Bill Chatfield | 903b810f1b | |
Bill Chatfield | d564d8d7dd | |
Bill Chatfield | 2d2bae6f96 | |
Bill Chatfield | 1fbb9f7c5f | |
Bill Chatfield | 0e5401934f | |
Bill Chatfield | 1e6fd72e1e | |
Bill Chatfield | 678c29acd3 | |
Bill Chatfield | c7ca984275 | |
Bill Chatfield | b0b2510a96 | |
Bill Chatfield | 4b6d06677b |
|
@ -0,0 +1,4 @@
|
|||
MORE
|
||||
MORE.dsk
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_FileInformation.txt
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||||
*.swp
|
13
Makefile
13
Makefile
|
@ -24,9 +24,9 @@ endif
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# It is necessary to use this older version of AppleCommander to support
|
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# the PowerBook G4 and iBook G3. This version only requires Java 1.3.
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AC=java -jar AppleCommander-1.3.5-ac.jar
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SRC=more.s
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PGM=more
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BASE_DSK=prodos-2.0.3-boot.dsk
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SRC=more.merlin.s
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PGM=MORE
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BASE_DSK=prodos-2.0.3.dsk
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VOL=$(PGM)
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DSK=$(PGM).dsk
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@ -35,12 +35,13 @@ DSK=$(PGM).dsk
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# disk instead.
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#$(AC) -pro140 $(DSK) $(VOL)
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|
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$(DSK): $(PGM)
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$(DSK): $(PGM) test.txt
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$(COPY) $(BASE_DSK) $(DSK)
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$(AC) -p $(DSK) $(PGM) BIN 0x8000 < $(PGM)
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$(AC) -p $(DSK) $(PGM) BIN 0x2000 < $(PGM)
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cat test.txt | tr '\n' '\r' | $(AC) -p $(DSK) TEST TXT
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||||
|
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$(PGM): $(SRC) Makefile
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merlin32 --verbose $(SRC)
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merlin32 $(SRC)
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clean:
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$(RM) $(DSK) $(PGM) *.zip _FileInformation.txt $(PGM)_Output.txt
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|
|
|
@ -0,0 +1,89 @@
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10 REM *****************************
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15 REM * *
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20 REM * MORE - TEXT FILE VIEWER *
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30 REM * AUTHOR - BILL CHATFIELD *
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35 REM * *
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||||
40 REM *****************************
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44 :
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45 REM TODO:
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46 REM CD,PREFIX,PWD,CWD,CHDIR,FASTER OUTPUT
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||||
47 REM PREFIX IN PROMPT
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||||
48 REM DETAILED HELP FROM "?" COMMAND, FIX FIRST LINE
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||||
49 :
|
||||
50 LET D$ = CHR$ (4)
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55 LET BS$ = CHR$ (7)
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56 LET CR$ = CHR$ (13)
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57 LET PROMPT$ = "[RETURN] NEXT LINE [SPACE] NEXT PAGE [Q] QUIT"
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58 LET LINE = 1
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||||
59 PRINT "ENTER A FILE NAME, * FOR CATALOG, OR JUST HIT RETURN TO ABORT
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."
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60 INPUT "FILE:";F$
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70 IF RIGHT$ (F$,1) = "*" THEN PRINT D$;"CATALOG "; LEFT$ (F$, LEN (F
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$) - 1): GOTO 60
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||||
80 IF F$ = "" THEN END
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||||
85 IF F$ = "?" THEN 59
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||||
110 ONERR GOTO 5050: REM SETUP ERROR HANDLER
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||||
125 PRINT D$;"VERIFY ";F$: REM CHECK IF FILE EXISTS, ERROR CODE 6
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130 PRINT D$;"OPEN ";F$: REM WILL CREATE FILE IF IT DOES NOT EXIST.
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||||
140 PRINT D$;"READ ";F$
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||||
150 GET C$
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||||
160 PRINT C$;
|
||||
165 IF C$ = CR$ THEN LINE = LINE + 1
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||||
167 IF LINE = 24 THEN INVERSE : PRINT PROMPT$;: NORMAL : PRINT D$: GOSUB
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||||
4000: GOSUB 3000: GOTO 140
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||||
170 GOTO 150: REM NEXT CHARACTER IN FILE
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||||
180 REM END OF MAIN, BUT UNREACHABLE BECAUSE OF CHARACTER LOOP
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3000 REM ****************
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||||
3005 REM * *
|
||||
3010 REM * ERASE PROMPT *
|
||||
3015 REM * *
|
||||
3020 REM ****************
|
||||
3025 LET PL = LEN (PROMPT$)
|
||||
3030 POKE 1403,0: REM BACKUP TO BEGINNING OF LINE
|
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3060 PRINT SPC( PL): REM ERASE PROMPT
|
||||
3070 POKE 1403,0: REM BACKUP AGAIN
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||||
3080 RETURN
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||||
4000 REM ***************
|
||||
4005 REM * *
|
||||
4010 REM * GET COMMAND *
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||||
4015 REM * *
|
||||
4020 REM ***************
|
||||
4030 GET CMD$
|
||||
4040 IF CMD$ = CR$ THEN LINE = 23: GOTO 4060
|
||||
4050 IF CMD$ = " " THEN LINE = 1: GOTO 4060
|
||||
4055 IF CMD$ = "Q" OR CMD$ = "q" THEN PRINT D$;"CLOSE": PRINT D$: PRINT
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: END
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4060 RETURN
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5000 REM *****************
|
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5010 REM * *
|
||||
5020 REM * ERROR HANDLER *
|
||||
5030 REM * *
|
||||
5040 REM *****************
|
||||
5050 POKE 216,0: REM TURNS OFF 'ONERR GOTO' ERROR HANDLING
|
||||
5060 LET ERRCODE = PEEK (222): REM GETS THE CODE FOR THIS ERROR
|
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5070 PRINT D$;"CLOSE": REM CLOSES ANY OPEN FILES
|
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5080 PRINT D$: REM TURNS OFF FILE I/O SO PRINTS GO TO SCREEN
|
||||
5090 IF ERRCODE = 5 THEN 5290: REM END-OF-FILE IS NOT AN ERROR
|
||||
5100 PRINT : PRINT : REM SEPARATES ERR MSG FROM ANY PREVIOUS OUTPUT
|
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5120 REM CHECK FOR DOS/PRODOS ERRORS NOT IN APPLESOFT TABLE
|
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5130 IF ERRCODE = 6 THEN PRINT "ERROR:FILE NOT FOUND:";F$
|
||||
5140 IF ERRCODE = 11 THEN PRINT "ERROR:INVALID OPTION"
|
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5150 IF ERRCODE = 255 THEN PRINT : PRINT : PRINT "INTERRUPTED BY CTRL-C"
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5155 GOTO 5290: REM SKIP TO THE END
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5160 REM COPY ERROR MESSAGE FROM APPLESOFT ERROR TABLE
|
||||
5170 LET BASE = 53856: REM $D260, START OF APPLESOFT ERR TABLE
|
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5180 LET PTR = BASE + ERRCODE: REM POINT TO 1ST BYTE OF ERR MSG
|
||||
5185 PRINT "ERROR:";: REM PREFIX ALL PRINTED MESSAGES WITH THIS
|
||||
5190 :
|
||||
5195 REM LOOP TO PRINT CHARS OF ERR MSG FROM APPLESOFT ERROR TABLE
|
||||
5200 REM WHILE (THERE ARE MORE CHARS IN MESSAGE) DO
|
||||
5210 LET BYTE = PEEK (PTR): REM GETS BYTE POINTED TO BY PTR
|
||||
5220 IF BYTE > = 128 THEN 5280: REM DETECTS LAST BYTE
|
||||
5230 PRINT CHR$ (BYTE);: REM CNVTS ASCII BYTE TO CHAR, PRINT
|
||||
5240 LET PTR = PTR + 1: REM ADVANCES POINTER TO NEXT BYTE
|
||||
5250 GOTO 5210: REM LOOPS BACK TO NEXT BYTE
|
||||
5260 REM END WHILE
|
||||
5270 :
|
||||
5280 PRINT CHR$ (BYTE - 128);: REM SETS HIGH BIT TO 0, PRINT
|
||||
5290 END : REM THIS IS THE END - JIM MORRISON
|
||||
|
20
more.c
20
more.c
|
@ -1,20 +0,0 @@
|
|||
/*
|
||||
* more.c
|
||||
*
|
||||
* Created on: Jan 4, 2020
|
||||
* Author: bill
|
||||
*/
|
||||
|
||||
int main(int argumentCount, char *arguments)
|
||||
{
|
||||
int i;
|
||||
int exitCode;
|
||||
|
||||
if (argumentCount == 0)
|
||||
exitCode = more(askUserForFile());
|
||||
else
|
||||
for (i = 1; i < argumentCount; ++i)
|
||||
exitCode = more(arguments[i]);
|
||||
|
||||
return exitCode;
|
||||
}
|
|
@ -0,0 +1,971 @@
|
|||
********************************
|
||||
* *
|
||||
* MORE - UN*X MORE COMMAND *
|
||||
* ASSEMBLES WITH MERLIN *
|
||||
* *
|
||||
********************************
|
||||
|
||||
* Memory Map
|
||||
*
|
||||
* $0000 - $00FF Zero Page
|
||||
* $0100 - $01FF Stack
|
||||
* $0200 - $03FF Mostly Free, Input Buffer, Interrupt Vectors
|
||||
* $0400 - $07FF Lo-res/Text Page1
|
||||
* $0800 - $0BFF Lo-res/Text Page2 (BASIC programs load here)
|
||||
* $0C00 - $1FFF Free
|
||||
* $2000 - $3FFF Hi-res Page1
|
||||
* $4000 - $5FFF Hi-res Page2
|
||||
* $6000 - $95FF Free
|
||||
* $9600 - $BFFF DOS3.3 and Buffers
|
||||
* $C000 - $CFFF Soft Switches, Expansion Card I/O and ROM
|
||||
* $D000 - $F7FF BASIC ROM (can be bankswitched later models)
|
||||
* $F800 - $FFFF Machine Language Monitor ROM (also can be bankswitched)
|
||||
*
|
||||
* Branching
|
||||
*
|
||||
* CMP,CPX,CPY ->
|
||||
* Condition N Z C
|
||||
* Register < Memory 1 0 0
|
||||
* Register = Memory 0 1 1
|
||||
* Register > Memory 0 0 1
|
||||
*
|
||||
* BPL - BRANCH PLUS (N=0) NOT NEGATIVE
|
||||
* BMI - BRANCH MINUS (N=1) NEGATIVE
|
||||
* BEQ - BRANCH EQUAL (Z=1) ZERO FLAG SET
|
||||
* BNE - BRANCH NOT EQUAL (Z=0) ZERO FLAG NOT SET
|
||||
* BCC - BRANCH CARRY CLEAR (C=0)
|
||||
* BCS - BRANCH CARRY SET (C=1)
|
||||
* BVC - BRANCH OVERVLOW CLEAR (V=0)
|
||||
* BVS - BRANCH OVERFLOW SET (V=1)
|
||||
|
||||
DSK MORE ;WRITE ASSEMBLED FILE TO DISK
|
||||
TYP $06 ;$FF=SYSTEM, $06=BINARY
|
||||
ORG $2000 ;ASSEMBLE START ADDRESS
|
||||
*
|
||||
* SYSTEM VARIABLES
|
||||
*
|
||||
PTR EQU 06 ;ONLY FREE 0-PAGE LOCATION
|
||||
CH EQU $24 ;40-COL HORZ CURS POSITION
|
||||
CV EQU $25 ;40-COL VERT CURS POSITION
|
||||
PROMPT EQU $33 ;PROMPT CHARACTER
|
||||
ZP_A1L EQU $3C ;MONITOR GENERAL PURPOSE
|
||||
ZP_A1H EQU $3D ;MONITOR GENERAL PURPOSE
|
||||
IN EQU $200 ;256-CHAR INPUT BUF
|
||||
*
|
||||
* SLOT 3 SCRATCHPAD RAM - TEXT PAGE 0 SCREEN HOLE
|
||||
* http://yesterbits.com/media/books/apple/heiserman-1983-intermediate-level-apple-ii-handbook.pdf
|
||||
*
|
||||
OURCH EQU $057B ;80-COL HORIZ CURSOR POSITION
|
||||
OURCV EQU $05FB ;VERTICAL CURSOR POSITION
|
||||
*
|
||||
* SUBROUTINES IN MONITOR ROM: $F800 - $FFFF
|
||||
*
|
||||
CR EQU $FC62 ;CURSOR TO BEG OF NEXT LINE
|
||||
RDKEY EQU $FD0C ;READS A CHARACTER
|
||||
GETLN EQU $FD6A ;READS A LINE, WITH PROMPT($33)
|
||||
GETLN1 EQU $FD6F ;READS A LINE, NO PROMPT
|
||||
CROUT EQU $FD8E
|
||||
COUT EQU $FDED
|
||||
PRBYTE EQU $FDDA
|
||||
*
|
||||
* SUBROUTINES IN BASIC.SYSTEM ROM:
|
||||
*
|
||||
GETBUFR EQU $BEF5 ;BCC=OKAY & A=HIBYTE OF BUF
|
||||
;BCS=FAIL & A=ERRCODE
|
||||
;X & Y ARE DESTROYED
|
||||
FREEBUFR EQU $BEF8 ;FREE BUFFER
|
||||
*
|
||||
* PRODOS ENTRY POINT
|
||||
*
|
||||
PRODOS_MLI EQU $BF00 ;MACHINE LANG IFACE (MLI)
|
||||
*
|
||||
* MEMORY MAPPED I/O: $C000 - $CFFF
|
||||
*
|
||||
KBD EQU $C000 ;KEYBOARD DATA AND STROBE
|
||||
CXROMOFF EQU $C006 ;SELECT SLOT ROMS
|
||||
CXROMON EQU $C007 ;SELECT INTERNAL ROM
|
||||
KBDSTRB EQU $C010 ;CLEAR KEYBOARD STROBE
|
||||
ALTCHAR EQU $C01E ;CHARACTER SET STATUS
|
||||
RD80VID EQU $C01F ;<=128->40COL, >128->80COL
|
||||
INVERT EQU $CEDD ;INVERT CHARACTER ON SCREEN
|
||||
PICK EQU $CF01 ;PICK CHARACTER OFF SCREEN
|
||||
*
|
||||
* PRODOS COMMAND CODES
|
||||
*
|
||||
GET_PREFIX EQU $C7
|
||||
OPEN EQU $C8
|
||||
READ EQU $CA
|
||||
CLOSE EQU $CC
|
||||
*
|
||||
* PRODOS MLI PARAMETER COUNTS
|
||||
*
|
||||
GETPRFXPARMCNT EQU 1
|
||||
OPENPARMCNT EQU 3
|
||||
READPARMCNT EQU 4
|
||||
CLOSEPARMCNT EQU 1
|
||||
*
|
||||
* ASCII
|
||||
*
|
||||
CR_CHAR EQU $0D ;ASCII CARRIAGE RETURN
|
||||
CR_HIBIT EQU $8D ;CARRIAGE RET WITH HIGH BIT SET
|
||||
*
|
||||
* CONSTANTS
|
||||
*
|
||||
EOFERR EQU $4C ;ERROR CODE FOR END-OF-FILE
|
||||
MAXERCDE EQU $5A ;LARGEST ERROR CODE
|
||||
BUFSIZE EQU $00FF
|
||||
SCR_HGHT EQU 24 ;SCREEN HEIGHT
|
||||
*
|
||||
* DEBUGGING
|
||||
*
|
||||
TRACE EQU 0
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PUSH Y ONTO THE STACK *
|
||||
* DESTROYS A *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PUSHY MAC
|
||||
TYA
|
||||
PHA
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* POP Y FROM THE STACK *
|
||||
* DESTROYS A *
|
||||
* *
|
||||
********************************
|
||||
|
||||
POPY MAC
|
||||
PLA
|
||||
TAY
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* COPY IN BUF TO STRING *
|
||||
* *
|
||||
* X CONTAINS LENGTH OF "IN" *
|
||||
* ]1 IS DEST STRING (LEN BYT) *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
CPIN MAC
|
||||
PUSHY ;SAVE Y
|
||||
STX ]1 ;COPY LENGTH TO FIRST BYTE OF ]1
|
||||
LDY #0 ;INIT Y TO ZERO
|
||||
LOOP CPY ]1 ;COMPARE Y WITH LENGTH BYTE
|
||||
BEQ ENDLOOP ;DONE IF LENGTH IS REACHED
|
||||
LDA IN,Y ;LOAD IN[Y] INTO ACCUMULATOR
|
||||
CMP #CR_CHAR ;COMPARE WITH CARRIAGE RETURN
|
||||
BEQ ENDLOOP ;STOP AT CARRIAGE RETURN
|
||||
INY ;DEST STR IS 1 AHEAD OF IN BUF
|
||||
STA ]1,Y ;COPY CHAR TO DEST STR ]1
|
||||
JMP LOOP ;LOOP TO NEXT CHAR
|
||||
ENDLOOP POPY ;RESTORE Y
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* WRITES A LENGTH PREFIXED *
|
||||
* STRING TO THE SCREEN *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PUTS MAC
|
||||
PUSHY
|
||||
LDY #0 ;INIT LOOP INDEX
|
||||
LOOP CPY ]1 ;HAS STR LENGTH BEEN REACHED
|
||||
BEQ ENDLOOP ;IF SO THEN FINISH
|
||||
INY ;MOVE TO INDEX OF NEXT CHAR
|
||||
LDA ]1,Y ;GET THE CHAR TO BE WRITTEN
|
||||
JSR COUT ;WRITE THE CHARACTER
|
||||
JMP LOOP ;LOOP
|
||||
ENDLOOP POPY
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* SET TO #1 (IMMEDIATE 1) *
|
||||
* ]1 DESTINATION *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
SET1 MAC
|
||||
LDA #1
|
||||
STA ]1
|
||||
<<<
|
||||
|
||||
SET0 MAC
|
||||
LDA #0
|
||||
STA ]1
|
||||
<<<
|
||||
|
||||
SET23 MAC
|
||||
LDA #23
|
||||
STA ]1
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* STANDARD ASSEM LANG *
|
||||
* BACKWARDS COPY OF 1 BYTE *
|
||||
* A IS DESTROYED *
|
||||
* ]1 DESTINATION *
|
||||
* ]2 SOURCE *
|
||||
* *
|
||||
********************************
|
||||
|
||||
COPY_B MAC
|
||||
LDA ]2
|
||||
STA ]1
|
||||
<<<
|
||||
|
||||
********************************
|
||||
* *
|
||||
* MAIN PROGRAM *
|
||||
* *
|
||||
********************************
|
||||
|
||||
MAIN CLD ;CLEAR DECIMAL FLG, AVOID CRASH
|
||||
SET0 USRQUIT ;INITIALIZE TO "NO"
|
||||
JSR GET_SCRN_WDTH
|
||||
*
|
||||
* GET PREFIX TO SEE IF IT IS SET
|
||||
*
|
||||
JSR PRODOS_MLI
|
||||
DB GET_PREFIX
|
||||
DA GETPRFXPARMS
|
||||
BEQ :CHKPREFIX
|
||||
JSR GETPRFXERR
|
||||
JMP :END
|
||||
:CHKPREFIX LDA PREFIX
|
||||
CMP #0
|
||||
BNE :GETFILE
|
||||
JSR CROUT
|
||||
PUTS WARNING
|
||||
PUTS NOPREFIXMSG
|
||||
JSR CROUT
|
||||
JSR CROUT
|
||||
*
|
||||
* GET FILE NAME
|
||||
*
|
||||
:GETFILE PUTS INFOLINE
|
||||
JSR CROUT
|
||||
:ASKFILE PUTS FILEPROMPT
|
||||
JSR GETLN1 ;LENGTH IN X, CR AT END
|
||||
CPX #0 ;IS THE LENGTH ZERO?
|
||||
BNE :CONT0 ;USER JUST PRESSED RETURN
|
||||
JMP :END
|
||||
|
||||
:CONT0 CPX #1
|
||||
BNE :CONT1
|
||||
LDA #"?"
|
||||
CMP IN
|
||||
BNE :CONT1
|
||||
JSR HELPINFO
|
||||
JMP :ASKFILE
|
||||
:CONT1 CPIN FILENAME ;COPY "IN" BUF TO FILENAME
|
||||
|
||||
DO TRACE
|
||||
JSR PRSTRBYTES
|
||||
JSR GETLN
|
||||
FIN
|
||||
*
|
||||
* GET FILE I/O BUFFER FOR OPEN CALL
|
||||
*
|
||||
LDA #4 ;FOUR 256 BYTE PAGES = 1KB
|
||||
JSR GETBUFR ;GET BUF FROM BASIC.SYSTEM
|
||||
BCC :CONT2 ;CARRY CLEAR MEANS NO ERROR
|
||||
JSR OBUFERR
|
||||
JMP :END
|
||||
:CONT2 STA OBUFADDR+1 ;GETBUFR RETURNS HIBYTE IN A
|
||||
LDA #0 ;PREPARE
|
||||
STA OBUFADDR ;LOBYTE IS 0 B/C ADDR OF PAGE
|
||||
*
|
||||
* OPEN FILE
|
||||
*
|
||||
JSR PRODOS_MLI
|
||||
DB OPEN
|
||||
DA OPENPARMS
|
||||
BEQ :CONT3
|
||||
JSR OPENERR
|
||||
JSR FREEBUFR ;CLEAN UP BEFORE TRY AGAIN
|
||||
JMP :ASKFILE
|
||||
*
|
||||
* COPY FILE NUMBER FROM OPEN PARAMETERS TO READ AND CLOSE
|
||||
*
|
||||
:CONT3 LDA OPENFNUM
|
||||
STA READFNUM
|
||||
STA CLOSFNUM
|
||||
*
|
||||
* GET BUFFER FOR READ OPERATION FROM BASIC.SYSTEM
|
||||
*
|
||||
LDA #1 ;ONE 256 BYTE BUFFER
|
||||
JSR GETBUFR ;CALL BASIC.SYSTEM SUB
|
||||
BCC :CONT4
|
||||
JSR RBUFERR ;CARRY SET MEANS ERROR
|
||||
JMP :CLOSFILE
|
||||
:CONT4 STA RBADDR+1 ;STORE HI-BYTE
|
||||
STA ZP_A1H ;FOR 0-PAGE INDIRECTION
|
||||
LDA #0 ;0 FOR LO-BYTE
|
||||
STA RBADDR ;STORE IT
|
||||
STA ZP_A1L ;AGAIN, FOR 0-PAGE INDIRECTION
|
||||
*
|
||||
* PRINT THE FILE
|
||||
*
|
||||
JSR VIEWFILE
|
||||
*
|
||||
* CLEANUP
|
||||
*
|
||||
JSR FREEBUFR ;FREE READ BUFFER
|
||||
*
|
||||
* Close file
|
||||
*
|
||||
:CLOSFILE JSR PRODOS_MLI ;CLOSE THE FILE
|
||||
DB CLOSE
|
||||
DA CLOSEPARMS
|
||||
BEQ :FREEOBUF
|
||||
JSR CLOSERR
|
||||
|
||||
:FREEOBUF JSR FREEBUFR ;FREE OPEN I/O BUFFER
|
||||
:END NOP
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* END OF MAIN - PROGRAM EXIT *
|
||||
* *
|
||||
********************************
|
||||
|
||||
********************************
|
||||
* *
|
||||
* DETERMINE IF SCREEN IS IN *
|
||||
* 40 COL OR 80 COL MODE *
|
||||
* *
|
||||
********************************
|
||||
GET_SCRN_WDTH LDA #%10000000 ;USE ALTCHARSET STATUS TO
|
||||
BIT ALTCHAR ;SEE IF 80-COL CARD TURNED ON
|
||||
BMI :CARD_ACTIVE ;BIT 7 ON = NEG & CARD ACTIVE
|
||||
JMP :FORTY_COLUMNS ;INACTIVE CARD IS 40-COL
|
||||
:CARD_ACTIVE LDA #%10000000 ;SEE IF CARD IS IN 40/80 MODE
|
||||
BIT RD80VID ;BIT 7 OFF = 0 OR >0 & 40-COL
|
||||
BMI :EIGHTY_COLUMNS ;BIT 7 ON = NEG & 80-COL MODE
|
||||
:FORTY_COLUMNS LDA #40
|
||||
STA SCR_WDTH
|
||||
JMP :END
|
||||
:EIGHTY_COLUMNS LDA #80
|
||||
STA SCR_WDTH
|
||||
:END
|
||||
DO TRACE
|
||||
LDA ALTCHAR
|
||||
JSR PRBYTE
|
||||
JSR CROUT
|
||||
LDA RD80VID
|
||||
JSR PRBYTE
|
||||
JSR CROUT
|
||||
PUTS SCR_WDTH_TXT
|
||||
LDA SCR_WDTH
|
||||
JSR PRBYTE
|
||||
JSR CROUT
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PROGRAM INFO AND HELP *
|
||||
* *
|
||||
********************************
|
||||
HELPINFO JSR CROUT
|
||||
PUTS INFO0
|
||||
JSR CROUT
|
||||
PUTS INFO1
|
||||
JSR CROUT
|
||||
PUTS INFO2
|
||||
JSR CROUT
|
||||
PUTS INFO3
|
||||
JSR CROUT
|
||||
PUTS INFO4
|
||||
JSR CROUT
|
||||
JSR CROUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN GETTING *
|
||||
* PREFIX *
|
||||
* *
|
||||
********************************
|
||||
GETPRFXERR STA ERRCODE
|
||||
PUTS GETPRFXERRMSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN OPENING *
|
||||
* FILE *
|
||||
* *
|
||||
********************************
|
||||
OPENERR STA ERRCODE
|
||||
PUTS OERRMSG
|
||||
PUTS FILENAME
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN CLOSING *
|
||||
* FILE *
|
||||
* *
|
||||
********************************
|
||||
CLOSERR STA ERRCODE
|
||||
PUTS CERRMSG
|
||||
PUTS FILENAME
|
||||
LDA #"'"
|
||||
JSR COUT
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN REQUESTING *
|
||||
* READ BUFFER *
|
||||
* *
|
||||
********************************
|
||||
RBUFERR STA ERRCODE
|
||||
PUTS RBERRMSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN REQUESTING *
|
||||
* READ BUFFER *
|
||||
* *
|
||||
********************************
|
||||
OBUFERR STA ERRCODE
|
||||
PUTS OBERRMSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT "IN" BUFFER *
|
||||
* *
|
||||
********************************
|
||||
PRINT_IN
|
||||
PUSHY
|
||||
LDA #"X"
|
||||
JSR COUT
|
||||
LDA #"="
|
||||
JSR COUT
|
||||
TXA
|
||||
JSR PRBYTE
|
||||
JSR CROUT
|
||||
|
||||
LDY #0
|
||||
:LOOP CPY #255
|
||||
BEQ :ENDLOOP
|
||||
LDA IN,Y
|
||||
JSR PRBYTE
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
INY
|
||||
JMP :LOOP
|
||||
:ENDLOOP JSR CROUT
|
||||
POPY
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT STRING BYTES *
|
||||
* *
|
||||
********************************
|
||||
PRSTRBYTES PUSHY
|
||||
LDY #0
|
||||
:LOOP CPY #255
|
||||
BEQ :ENDLOOP
|
||||
LDA FILENAME,Y
|
||||
JSR PRBYTE
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
INY
|
||||
JMP :LOOP
|
||||
:ENDLOOP JSR CROUT
|
||||
POPY
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* VIEW FILE SUB *
|
||||
* *
|
||||
********************************
|
||||
|
||||
VIEWFILE
|
||||
DO TRACE
|
||||
PUTS ENVIEW
|
||||
FIN
|
||||
|
||||
COPY_B SCRNLINE;#1 ;INIT SCREEN LINE NUMBER
|
||||
COPY_B LINEIDX;#1 ;POSITION IN LINE
|
||||
:LOOP JSR PRODOS_MLI ;CALL PRODOS TO READ FILE
|
||||
DB READ ;SPECIFY PRODOS READ COMMAND
|
||||
DA READPARMS ;READ PARAMETERS
|
||||
BNE :READERR
|
||||
JSR WRITEBUF ;WRITE TO SCREEN WHAT WAS READ
|
||||
LDA #1 ;PREPARE FOR NEXT OP
|
||||
CMP USRQUIT ;IF USER WANTS TO QUIT, THEN
|
||||
BEQ :ENDLOOP ;EXIT THE LOOP
|
||||
JMP :LOOP ;ELSE, GET THE NEXT BUFFER
|
||||
:READERR JSR ERRPROC
|
||||
:ENDLOOP NOP
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* WRITE BUFFER TO SCREEN *
|
||||
* *
|
||||
********************************
|
||||
|
||||
WRITEBUF PUSHY
|
||||
LDY #0 ;INIT CHAR COUNTER VARIABLE
|
||||
:LOOP CPY READCNT ;COMPARE TO MAX CHARS
|
||||
BEQ :ENDLOOP
|
||||
LDA (ZP_A1L),Y ;GET CHAR FROM BUFFER
|
||||
ORA #%10000000 ;TURN ON HIGH BIT FOR PRINTING
|
||||
JSR WRITECHAR ;COUT PRESERVES ACCUM
|
||||
*
|
||||
* CHECK AT END OF PAGE
|
||||
*
|
||||
LDA SCRNLINE ;CURSOR VERTICAL SCREEN LINE
|
||||
CMP #SCR_HGHT ;AT BOTTOM OF SCREEN?
|
||||
BNE :CONT ;NO? THEN NEXT CHAR
|
||||
JSR STATBAR ;YES? THEN SHOW THE STATUS BAR
|
||||
LDA #1 ;SETUP FOR NEXT LINE
|
||||
CMP USRQUIT ;DID USER ASK TO QUIT
|
||||
BEQ :ENDLOOP ;YES? THEN END SUB
|
||||
:CONT INY ;STATBAR HAS ADJUSTED LINENUM
|
||||
JMP :LOOP
|
||||
:ENDLOOP NOP
|
||||
POPY
|
||||
|
||||
DO TRACE
|
||||
PUTS EXWRITEBUF
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* WRITE CHAR TO SCREEN *
|
||||
* CLIPS TO SCREEN WIDTH *
|
||||
* *
|
||||
********************************
|
||||
WRITECHAR STA CHAR ;DON'T LOOSE THE CHARACTER
|
||||
CMP #CR_HIBIT ;COMPARE TO CARRIAGE RETURN
|
||||
BNE :NOT_EOL ;IF NOT END OF LINE, PRINT
|
||||
JSR DOWN1LINE
|
||||
JMP :ENDSUB ;NOTHING MORE TO DO FOR EOL
|
||||
:NOT_EOL LDA LINEIDX ;GET CURSOR HORIZ COL
|
||||
CMP SCR_WDTH ;COMPARE WITH SCREEN WIDTH
|
||||
BPL :FORWARD ;DON'T PRINT IF OFF SCREEN
|
||||
LDA CHAR ;ON SCREEN, SO PRINT IT
|
||||
JSR COUT
|
||||
:FORWARD INC LINEIDX
|
||||
:ENDSUB RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* GO TO BEGINNING OF NEXT LINE *
|
||||
* *
|
||||
********************************
|
||||
DOWN1LINE INC SCRNLINE ;KEEP TRACK OF LINE NUMBER
|
||||
COPY_B LINEIDX;#1 ;RESET TO BEGINNING OF LINE
|
||||
;COPY_B OURCH;#0
|
||||
JSR CROUT ;LINE DOWN & SCROLL IF NEEDED
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT ASCII IN HEX *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PRASCII PHA
|
||||
LDA #"["
|
||||
JSR COUT
|
||||
PLA
|
||||
JSR PRBYTE
|
||||
LDA #"]"
|
||||
JSR COUT
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* DO THE STATUS BAR *
|
||||
* *
|
||||
********************************
|
||||
|
||||
STATBAR
|
||||
DO TRACE
|
||||
PUTS ENSTATB
|
||||
FIN
|
||||
|
||||
PUSHY
|
||||
PUTS BAR
|
||||
:LOOP JSR RDKEY ;GET A KEY FROM THE USER
|
||||
CMP #" " ;CHECK IF SPACE ENTERED
|
||||
BNE :CHKCR ;IF NOT FORWARD TO NEXT CHECK
|
||||
SET1 SCRNLINE ;ADVANCE ONE PAGE, STORE 1
|
||||
JMP :ENDLOOP ;PROCESSED SPACE SO DONE
|
||||
:CHKCR CMP #CR_HIBIT ;CHECK FOR CARRIAGE RETURN
|
||||
BNE :CHKQUIT
|
||||
SET23 SCRNLINE
|
||||
JMP :ENDLOOP
|
||||
:CHKQUIT CMP #"Q" ;USER WANTS TO QUIT
|
||||
BEQ :QUITTING ;NO RECOGNIZED INPUT
|
||||
CMP #"q"
|
||||
BEQ :QUITTING
|
||||
JMP :LOOP
|
||||
:QUITTING SET1 USRQUIT
|
||||
:ENDLOOP JSR ERASEBAR
|
||||
POPY
|
||||
|
||||
DO TRACE
|
||||
PUTS EXSTATB
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* ERASE STATUS BAR *
|
||||
* *
|
||||
********************************
|
||||
|
||||
ERASEBAR
|
||||
DO TRACE
|
||||
PUTS ENERASEB
|
||||
FIN
|
||||
|
||||
PUSHY
|
||||
SET0 OURCH ;RESET CURSOR TO BEG OF LINE
|
||||
LDY #0 ;INIT COUNTER FOR SPACES
|
||||
:LOOP CPY BAR ;FIRST BYTE IS LENGTH
|
||||
BEQ :ENDLOOP ;IF Y=LEN THEN DONE
|
||||
LDA #" " ;LOAD SPACE
|
||||
JSR COUT ;WRITE TO SCREEN
|
||||
INY ;MAKE PROGRESS
|
||||
JMP :LOOP ;LOOP TO NEXT CHAR
|
||||
:ENDLOOP SET0 OURCH ;RESET CURSOR TO BEG OF LINE
|
||||
POPY
|
||||
|
||||
DO TRACE
|
||||
PUTS EXERASEB
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* ERROR HANDLER *
|
||||
* INPUT PARAM: A HOLDS ERRCODE *
|
||||
* *
|
||||
********************************
|
||||
|
||||
ERRPROC
|
||||
STA ERRCODE
|
||||
CMP #0
|
||||
BNE :EEOF
|
||||
JMP :END
|
||||
|
||||
:EEOF CMP #EOFERR
|
||||
BNE :E01
|
||||
JMP :END
|
||||
|
||||
:E01 CMP #1
|
||||
BNE :E04
|
||||
PUTS E01MSG
|
||||
JMP :END
|
||||
|
||||
:E04 CMP #4
|
||||
BNE :E25
|
||||
PUTS E04MSG
|
||||
JMP :END
|
||||
|
||||
:E25 CMP #$25
|
||||
BNE :E27
|
||||
PUTS E25MSG
|
||||
JMP :END
|
||||
|
||||
:E27 CMP #$27
|
||||
BNE :E28
|
||||
PUTS E27MSG
|
||||
JMP :END
|
||||
|
||||
:E28 CMP #$28
|
||||
BNE :E2B
|
||||
PUTS E28MSG
|
||||
JMP :END
|
||||
|
||||
:E2B CMP #$2B
|
||||
BNE :E2E
|
||||
PUTS E2BMSG
|
||||
JMP :END
|
||||
|
||||
:E2E CMP #$2E
|
||||
BNE :E40
|
||||
PUTS E2EMSG
|
||||
JMP :END
|
||||
|
||||
:E40 CMP #$40
|
||||
BNE :E42
|
||||
PUTS E40MSG
|
||||
JMP :END
|
||||
|
||||
:E42 CMP #$42
|
||||
BNE :E43
|
||||
PUTS E42MSG
|
||||
JMP :END
|
||||
|
||||
:E43 CMP #$43
|
||||
BNE :E44
|
||||
PUTS E43MSG
|
||||
JMP :END
|
||||
|
||||
:E44 CMP #$44
|
||||
BNE :E45
|
||||
PUTS E44MSG
|
||||
JMP :END
|
||||
|
||||
:E45 CMP #$45
|
||||
BNE :E46
|
||||
PUTS E45MSG
|
||||
JMP :END
|
||||
|
||||
:E46 CMP #$46
|
||||
BNE :E47
|
||||
PUTS E46MSG
|
||||
JMP :END
|
||||
|
||||
:E47 CMP #$47
|
||||
BNE :E48
|
||||
PUTS E47MSG
|
||||
JMP :END
|
||||
|
||||
:E48 CMP #$48
|
||||
BNE :E49
|
||||
PUTS E48MSG
|
||||
JMP :END
|
||||
|
||||
:E49 CMP #$49
|
||||
BNE :E4A
|
||||
PUTS E49MSG
|
||||
JMP :END
|
||||
|
||||
:E4A CMP #$4A
|
||||
BNE :E4B
|
||||
PUTS E4AMSG
|
||||
JMP :END
|
||||
|
||||
:E4B CMP #$4B
|
||||
BNE :E4C
|
||||
PUTS E4BMSG
|
||||
JMP :END
|
||||
|
||||
:E4C CMP #$4C
|
||||
BNE :E4D
|
||||
PUTS E4CMSG
|
||||
JMP :END
|
||||
|
||||
:E4D CMP #$4D
|
||||
BNE :E4E
|
||||
PUTS E4DMSG
|
||||
JMP :END
|
||||
|
||||
:E4E CMP #$4E
|
||||
BNE :E50
|
||||
PUTS E4EMSG
|
||||
JMP :END
|
||||
|
||||
:E50 CMP #$50
|
||||
BNE :E51
|
||||
PUTS E50MSG
|
||||
JMP :END
|
||||
|
||||
:E51 CMP #$51
|
||||
BNE :E52
|
||||
PUTS E51MSG
|
||||
JMP :END
|
||||
|
||||
:E52 CMP #$52
|
||||
BNE :E53
|
||||
PUTS E52MSG
|
||||
JMP :END
|
||||
|
||||
:E53 CMP #$53
|
||||
BNE :E55
|
||||
PUTS E53MSG
|
||||
JMP :END
|
||||
|
||||
:E55 CMP #$55
|
||||
BNE :E56
|
||||
PUTS E55MSG
|
||||
JMP :END
|
||||
|
||||
:E56 CMP #$56
|
||||
BNE :E57
|
||||
PUTS E56MSG
|
||||
JMP :END
|
||||
|
||||
:E57 CMP #$57
|
||||
BNE :E5A
|
||||
PUTS E57MSG
|
||||
JMP :END
|
||||
|
||||
:E5A CMP #$5A
|
||||
BNE :E_UNK
|
||||
PUTS E5AMSG
|
||||
JMP :END
|
||||
|
||||
:E_UNK PUTS E_UNK_MSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR PRBYTE
|
||||
:END JSR CROUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* DATA DIVISION HAHA *
|
||||
* *
|
||||
********************************
|
||||
|
||||
INFOLINE STR "ENTER [?] FOR PROGRAM INFO AND HELP"
|
||||
INFO0 STR "MORE - PAGES THROUGH TEXT FILE"
|
||||
INFO1 STR "COPYRIGHT (C) 2024 BILL CHATFIELD"
|
||||
INFO2 STR "DISTRIBUTED UNDER THE GPL VERSION 3"
|
||||
INFO3 STR "https://github.com/gungwald/prodos-more"
|
||||
INFO4 STR "PRESS RETURN TO QUIT"
|
||||
FILEPROMPT STR "FILE:"
|
||||
ERRTXT STR "ERROR:"
|
||||
FILENAME DS $FF
|
||||
PREFIX DS 64
|
||||
ERRCODE DS 1
|
||||
SCRNLINE DS 1
|
||||
LINEIDX DS 1
|
||||
CHAR DS 1
|
||||
BAR STR '[RET] LINE [SPC] PAGE [Q]UIT'
|
||||
USRQUIT DS 1
|
||||
BUFCHAR DS 1
|
||||
USRCHAR DS 1
|
||||
SCR_WDTH DS 1
|
||||
SCR_WDTH_TXT STR "SCREEN WIDTH="
|
||||
|
||||
PREFIXMSG STR "THE PREFIX IS "
|
||||
WARNING STR 'WARNING'
|
||||
NOPREFIXMSG STR ": NO PREFIX IS SET. YOU MUST ENTER THE FULL PATH TO THE FILE."
|
||||
GETPRFXERRMSG STR "CANNOT GET PREFIX"
|
||||
OERRMSG STR "CANNOT OPEN "
|
||||
CERRMSG STR "CANNOT CLOSE "
|
||||
RBERRMSG STR "CANNOT CREATE READ BUFFER"
|
||||
OBERRMSG STR "CANNOT CREATE FILE BUFFER"
|
||||
|
||||
E00MSG STR "NO ERROR"
|
||||
E01MSG STR "BAD SYSTEM CALL NUMBER"
|
||||
E04MSG STR "BAD SYSTEM CALL PARAMETER COUNT"
|
||||
E25MSG STR "INTERRUPT TABLE FULL"
|
||||
E27MSG STR "I/O ERROR"
|
||||
E28MSG STR "NO DEVICE CONNECTED"
|
||||
E2BMSG STR "DISK WRITE PROTECTED"
|
||||
E2EMSG STR "DISK SWITCHED"
|
||||
E40MSG STR "INVALID PATHNAME"
|
||||
E42MSG STR "MAXIMUM NUMBER OF FILES OPEN"
|
||||
E43MSG STR "INVALID REFERENCE NUMBER"
|
||||
E44MSG STR "DIRECTORY NOT FOUND"
|
||||
E45MSG STR "VOLUME NOT FOUND"
|
||||
E46MSG STR "FILE NOT FOUND"
|
||||
E47MSG STR "DUPLICATE FILENAME"
|
||||
E48MSG STR "VOLUME FULL"
|
||||
E49MSG STR "VOLUME DIRECTORY FULL"
|
||||
E4AMSG STR "INCOMPATIBLE FILE FORMAT OR PRODOS DIRECTORY"
|
||||
E4BMSG STR "UNSUPPORTED STORAGE TYPE"
|
||||
E4CMSG STR "END OF FILE ENCOUNTERED"
|
||||
E4DMSG STR "POSITION OUT OF RANGE"
|
||||
E4EMSG STR "FILE ACCESS ERROR OR FILE LOCKED"
|
||||
E50MSG STR "FILE IS OPEN"
|
||||
E51MSG STR "DIRECTORY STRUCTURE DAMAGED"
|
||||
E52MSG STR "NOT A PRODOS VOLUME"
|
||||
E53MSG STR "INVALID SYSTEM CALL PARAMETER"
|
||||
E55MSG STR "VOLUME CONTROL BLOCK TABLE FULL"
|
||||
E56MSG STR "BAD BUFFER ADDRESS"
|
||||
E57MSG STR "DUPLICATE VOLUME"
|
||||
E5AMSG STR "FILE STRUCTURE DAMAGED"
|
||||
E_UNK_MSG STR "UNKNOWN ERROR CODE"
|
||||
|
||||
ENVIEW STR 'ENTERING VIEWFILE'
|
||||
EXVIEW STR 'EXITING VIEWFILE'
|
||||
EXWRITEBUF STR 'EXITING WRITEBUF'
|
||||
ENSTATB STR 'ENTERING STATUSBAR'
|
||||
EXSTATB STR 'EXITING STATUSBAR'
|
||||
ENERASEB STR 'ENTERING ERASEBAR'
|
||||
EXERASEB STR 'EXITING ERASEBAR'
|
||||
*
|
||||
* GET_PREFIX PARAMETERS
|
||||
*
|
||||
GETPRFXPARMS DB #GETPRFXPARMCNT
|
||||
PREFIXADDR DA PREFIX
|
||||
*
|
||||
* OPEN PARAMETERS
|
||||
*
|
||||
OPENPARMS DB #OPENPARMCNT
|
||||
DA FILENAME
|
||||
OBUFADDR DS 2
|
||||
OPENFNUM DS 1
|
||||
*
|
||||
* READ PARAMETERS
|
||||
*
|
||||
READPARMS DB #READPARMCNT
|
||||
READFNUM DS 1
|
||||
RBADDR DS 2
|
||||
REQCNT DW BUFSIZE
|
||||
READCNT DS 2
|
||||
*
|
||||
* CLOSE PARAMETERS
|
||||
*
|
||||
CLOSEPARMS DB #CLOSEPARMCNT
|
||||
CLOSFNUM DS 1
|
||||
*
|
||||
* BUFFERS
|
||||
*
|
||||
* CONSUME ALL BYTES UP TO THE NEXT PAGE BOUNDRY
|
||||
FILLER DS \,$00
|
||||
* MUST START ON PAGE BOUNDRY
|
||||
*OPENBUF DS 1024
|
||||
*READBUF DS BUFSIZE
|
402
more.s
402
more.s
|
@ -1,402 +0,0 @@
|
|||
*
|
||||
* more - Text viewer
|
||||
*
|
||||
|
||||
* BEQ - Branch if Equal
|
||||
* Branches if the zero flag (Z) is set to 1. This happens if:
|
||||
* - A 0 value is loaded into the accumulator via LDA
|
||||
* - A CMP is done on two equal values
|
||||
* - A SBC is done on two equal values?
|
||||
* BCC - Branch if Carry Flag is Clear
|
||||
* Equivalent to Branch if Less Than (BLT), meaning that the
|
||||
* accumulator (A) is less than the parameter: A < Param
|
||||
* BGE - Branch if Accum >= Param is BCS
|
||||
|
||||
PROMPT equ $33
|
||||
BUFF equ $200
|
||||
|
||||
* System subroutines stored in Monitor ROM
|
||||
GETLN equ $fd6a ; Reads a line of input, with prompt from $33
|
||||
GETLNZ equ $fd67 ; Reads a line of input, CR first
|
||||
GETLN1 equ $fd6f ; Reads a line of input, no prompt
|
||||
CROUT equ $fd8e ; Outputs a carriage return
|
||||
PRBYTE equ $fdda ; Outputs a byte
|
||||
COUT equ $fded ; Outputs a character
|
||||
|
||||
* MLI stands for Machine Language Interface
|
||||
* It is the ProDOS system call entry point
|
||||
MLI equ $bf00
|
||||
|
||||
* ProDOS system call command codes
|
||||
OPEN equ $c8
|
||||
READ equ $ca
|
||||
CLOSE equ $cc
|
||||
|
||||
* Constants
|
||||
EOF equ $4c ; End of file
|
||||
PTR equ $06
|
||||
MAX_EC equ $5a ; The largest error code
|
||||
CR equ $0d ; Carriage return
|
||||
BUF_SIZ equ $00ff
|
||||
|
||||
|
||||
WRITE_CHAR mac
|
||||
if #=]1
|
||||
lda ]1
|
||||
else
|
||||
lda #]1
|
||||
fin
|
||||
jsr COUT
|
||||
eom
|
||||
|
||||
|
||||
WRITE_BYTE mac
|
||||
lda ]1
|
||||
jsr PRBYTE
|
||||
eom
|
||||
|
||||
|
||||
WRITE_ASC mac
|
||||
tya ; Preserve Y by transferring it to A
|
||||
pha ; and pushing it onto the stack
|
||||
ldy #0 ; Prepare loop index
|
||||
nextch lda ]1,Y ; Load a character into A
|
||||
beq finish ; Branch if lda loaded a zero value
|
||||
jsr COUT ; Write the character in A
|
||||
iny ; Increment Y
|
||||
jmp nextch ; Go back and load the next character
|
||||
finish pla ; Restore Y by pulling stack into A
|
||||
tay ; and transferring it to Y
|
||||
eom
|
||||
|
||||
|
||||
WRITE_STR mac
|
||||
tya ; Preserve Y
|
||||
pha
|
||||
lda ]1 ; Length byte
|
||||
sta len
|
||||
ldy #1 ; Prepare loop index
|
||||
nextChar tya
|
||||
cmp len ; Check if beyond end of string
|
||||
bcc writeChar ; Y is Less than
|
||||
beq writeChar ; or equal to len
|
||||
jmp finish
|
||||
writeChar lda ]1,y ; Load a character
|
||||
jsr COUT
|
||||
iny
|
||||
jmp nextChar
|
||||
len db 0
|
||||
finish pla ; Restore Y
|
||||
tay
|
||||
eom
|
||||
|
||||
|
||||
COPY_BYTE mac
|
||||
lda ]1
|
||||
sta ]2
|
||||
eom
|
||||
|
||||
* Copies a line out of BUFF into ]1.
|
||||
* Length is in X as is done by GETLN.
|
||||
COPY_BUFF mac
|
||||
tya ; Preserve Y register
|
||||
pha ; by pushing it on the stack
|
||||
txa ; Transfer X to A for compare
|
||||
cmp #$ff ; Check if string is too long
|
||||
bne startCopy ; If not, get started
|
||||
dex ; If so, shrink to fit with length byte
|
||||
startCopy stx ]1 ; Store length to target string
|
||||
ldy #0 ; Initialize loop index
|
||||
nextChar tya ; Move current position to A
|
||||
cmp ]1 ; Compare current position with length
|
||||
beq endCopyLine ; Quit if we've reached the end
|
||||
lda BUFF,y ; Load current character
|
||||
iny ; BUFF and ]1 are off by 1 because of len byte
|
||||
sta ]1,y ; Store character into target string
|
||||
jmp nextChar ; Continue with next character
|
||||
endCopyLine pla ; Restore Y by pulling value from stack
|
||||
tay ; and transferring to Y
|
||||
eom
|
||||
|
||||
WRITE_BUFF mac
|
||||
tya
|
||||
pha
|
||||
stx len
|
||||
ldy #0
|
||||
nextByte tya
|
||||
cmp len
|
||||
beq done
|
||||
lda BUFF,y
|
||||
jsr COUT
|
||||
iny
|
||||
jmp nextByte
|
||||
done pla
|
||||
tay
|
||||
eom
|
||||
|
||||
* Starting at $9000 because:
|
||||
* $800 overwrites Applesoft
|
||||
* $803 is where Applesoft programs start
|
||||
* $2000 is where the current .SYSTEM program is loaded
|
||||
|
||||
mainProgram
|
||||
org $8000
|
||||
|
||||
getFileNam
|
||||
WRITE_ASC prompt
|
||||
COPY_BYTE #"?";PROMPT
|
||||
jsr GETLN1
|
||||
WRITE_ASC buffText
|
||||
WRITE_BUFF
|
||||
jsr CROUT
|
||||
COPY_BUFF fileName
|
||||
|
||||
openFile jsr MLI
|
||||
db OPEN
|
||||
da openParams
|
||||
bne openErrorHandler
|
||||
|
||||
readFile COPY_BYTE fileNum;readNum
|
||||
readNext jsr MLI
|
||||
db READ
|
||||
da readParams
|
||||
cmp #EOF
|
||||
beq closeFile
|
||||
cmp #0
|
||||
bne readErrorHandler
|
||||
|
||||
writeScreen
|
||||
ldy #0
|
||||
sty lineCount
|
||||
sty charCount
|
||||
nextChar lda readIoBuf,y
|
||||
inc charCount
|
||||
ora #$80
|
||||
jsr COUT
|
||||
cmp $0d
|
||||
bne continue
|
||||
inc lineCount
|
||||
continue cpy #<BUF_SIZ
|
||||
beq readNext
|
||||
iny
|
||||
jmp nextChar
|
||||
|
||||
closeFile COPY_BYTE fileNum;closeNum
|
||||
jsr MLI
|
||||
db CLOSE
|
||||
dw closeParams
|
||||
bne closeErrorHandler
|
||||
jmp endMain
|
||||
openErrorHandler
|
||||
sta errorCode
|
||||
WRITE_ASC openFailureText
|
||||
jmp errorHandler
|
||||
readErrorHandler
|
||||
sta errorCode
|
||||
WRITE_ASC readFailureText
|
||||
jmp errorHandler
|
||||
closeErrorHandler
|
||||
sta errorCode
|
||||
WRITE_ASC closeFailureText
|
||||
errorHandler
|
||||
WRITE_STR fileName
|
||||
WRITE_CHAR ":"
|
||||
WRITE_CHAR " "
|
||||
lda errorCode
|
||||
cmp #MAX_EC ; Compare by A - MAX_EC
|
||||
bcs unknownError ; Branch if A >= MAX_EC
|
||||
lda errorCode ; Necessary?
|
||||
clc ; Prepare for addition
|
||||
adc errorCode ; Double for indexing addresses
|
||||
tax
|
||||
lda errorMessages,x
|
||||
sta PTR
|
||||
inx
|
||||
lda errorMessages,x
|
||||
sta PTR+1
|
||||
bne writeError
|
||||
lda PTR
|
||||
bne writeError
|
||||
unknownError
|
||||
WRITE_ASC unknownErrorCodeText
|
||||
WRITE_CHAR "$"
|
||||
WRITE_BYTE errorCode
|
||||
jsr CROUT
|
||||
jmp endMain
|
||||
writeError
|
||||
WRITE_ASC (PTR)
|
||||
WRITE_CHAR " "
|
||||
WRITE_ASC errorCodeText
|
||||
WRITE_CHAR "$"
|
||||
WRITE_BYTE errorCode
|
||||
WRITE_CHAR ")"
|
||||
jsr CROUT
|
||||
endMain
|
||||
COPY_BYTE #"]";PROMPT ; Restore normal prompt
|
||||
rts
|
||||
|
||||
* DAT-uh
|
||||
|
||||
openParams db 3 ; Parameter count
|
||||
oPathPtr da fileName ; Input param - file to open
|
||||
oBufPtr da openIoBuf ; Input param - I/O buffer
|
||||
fileNum ds 1 ; Output param - file ref num
|
||||
|
||||
readParams db 4
|
||||
readNum ds 1
|
||||
da readIoBuf
|
||||
reqCount dw BUF_SIZ
|
||||
transCount ds 2
|
||||
|
||||
closeParams db 1 ; Parameter count
|
||||
closeNum db 0 ; Input param - ref num to close
|
||||
|
||||
fileName ds $ff ; String starting with length byte
|
||||
|
||||
charCount ds 2
|
||||
lineCount ds 1
|
||||
len ds 1
|
||||
|
||||
buffText asc "BUFF=",00
|
||||
prompt asc "ENTER FILE NAME: ",00
|
||||
errorCode db 0
|
||||
openFailureText asc "FAILED TO OPEN FILE ",00
|
||||
readFailureText asc "FAILED TO READ FILE ",00
|
||||
closeFailureText asc "FAILED TO CLOSE FILE ",00
|
||||
errorCodeText asc "(ERROR CODE ",00
|
||||
|
||||
unknownErrorCodeText asc "UNKNOWN ERROR CODE: ",00
|
||||
em00 asc "NO ERROR",00
|
||||
em01 asc "BAD SYSTEM CALL NUMBER",00
|
||||
em03 asc "NO DEVICE CONNECTED",00 ; Bug in AppleWin < 1.26.3.0
|
||||
em04 asc "BAD SYSTEM CALL PARAMETER COUNT",00
|
||||
em25 asc "INTERRUPT VECTOR TABLE FULL",00
|
||||
em27 asc "I/O ERROR",00
|
||||
em28 asc "DEVICE NOT CONNECTED",00
|
||||
em2b asc "DISK WRITE PROTECTED",00
|
||||
em2e asc "DISK SWITCHED WHILE FILE STILL OPEN",00
|
||||
em40 asc "PATH CONTAINS ILLEGAL CHARACTERS",00
|
||||
em42 asc "CANNOT EXCEED 8 OPEN FILES",00
|
||||
em44 asc "PATH NOT FOUND",00
|
||||
em45 asc "VOLUME DIRECTORY NOT FOUND",00
|
||||
em46 asc "FILE NOT FOUND",00
|
||||
em47 asc "DUPLICATE FILENAME",00
|
||||
em48 asc "DISK IS FULL",00
|
||||
em49 asc "CANNOT EXCEED 51 DIRECTORY ENTRIES",00
|
||||
em4a asc "INCOMPATIBLE FILE FORMAT",00
|
||||
em4b asc "UNSUPPORTED STORAGE TYPE",00
|
||||
em4c asc "END OF FILE",00
|
||||
em4d asc "FILE POSITION OUT OF RANGE",00
|
||||
em4e asc "FILE ATTRIBUTE FORBIDS OPERATION",00
|
||||
em50 asc "FILE IS OPEN",00
|
||||
em51 asc "DIRECTORY COUNT ERROR",00
|
||||
em52 asc "NOT A PRODOS DISK",00
|
||||
em55 asc "VOLUME CONTROL BLOCK FULL",00
|
||||
em56 asc "BAD BUFFER ADDRESS",00
|
||||
em57 asc "DUPLICATE VOLUME",00
|
||||
em5a asc "BIT MAP DISK ADDRESS IS IMPOSSIBLE",00
|
||||
*
|
||||
* ERROR CODE TO MESSAGE TRANSLATION TABLE
|
||||
*
|
||||
errorMessages
|
||||
ec00 da em00
|
||||
ec01 da em01
|
||||
ec02 da $0000
|
||||
ec03 da em03 ; Bug in AppleWin < 1.26.3.0
|
||||
ec04 da em04
|
||||
ec05 da $0000
|
||||
ec06 da $0000
|
||||
ec07 da $0000
|
||||
ec08 da $0000
|
||||
ec09 da $0000
|
||||
ec0a da $0000
|
||||
ec0b da $0000
|
||||
ec0c da $0000
|
||||
ec0d da $0000
|
||||
ec0e da $0000
|
||||
ec0f da $0000
|
||||
ec10 da $0000
|
||||
ec11 da $0000
|
||||
ec12 da $0000
|
||||
ec13 da $0000
|
||||
ec14 da $0000
|
||||
ec15 da $0000
|
||||
ec16 da $0000
|
||||
ec17 da $0000
|
||||
ec18 da $0000
|
||||
ec19 da $0000
|
||||
ec1a da $0000
|
||||
ec1b da $0000
|
||||
ec1c da $0000
|
||||
ec1d da $0000
|
||||
ec1e da $0000
|
||||
ec1f da $0000
|
||||
ec20 da $0000
|
||||
ec21 da $0000
|
||||
ec22 da $0000
|
||||
ec23 da $0000
|
||||
ec24 da $0000
|
||||
ec25 da $0000
|
||||
ec26 da $0000
|
||||
ec27 DA em27
|
||||
ec28 DA em28
|
||||
ec29 da $0000
|
||||
ec2a da $0000
|
||||
ec2b da $0000
|
||||
ec2c da $0000
|
||||
ec2d da $0000
|
||||
ec2e DA em2e
|
||||
ec2f da $0000
|
||||
ec30 da $0000
|
||||
ec31 da $0000
|
||||
ec32 da $0000
|
||||
ec33 da $0000
|
||||
ec34 da $0000
|
||||
ec35 da $0000
|
||||
ec36 da $0000
|
||||
ec37 da $0000
|
||||
ec38 da $0000
|
||||
ec39 da $0000
|
||||
ec3a da $0000
|
||||
ec3b da $0000
|
||||
ec3c da $0000
|
||||
ec3d da $0000
|
||||
ec3e da $0000
|
||||
ec3f da $0000
|
||||
ec40 da em40
|
||||
ec41 da $0000
|
||||
ec42 da em42
|
||||
ec43 da $0000
|
||||
ec44 da em44
|
||||
ec45 da em45
|
||||
ec46 da em46
|
||||
ec47 da em47
|
||||
ec48 da em48
|
||||
ec49 da em49
|
||||
ec4a da em4a
|
||||
ec4b da em4b
|
||||
ec4c da em4c
|
||||
ec4d da em4d
|
||||
ec4e da em4e
|
||||
ec4f da $0000
|
||||
ec50 da em50
|
||||
ec51 da em51
|
||||
ec52 da em52
|
||||
ec53 da $0000
|
||||
ec54 da $0000
|
||||
ec55 da em55
|
||||
ec56 da em56
|
||||
ec57 da em57
|
||||
ec58 da $0000
|
||||
ec59 da $0000
|
||||
ec5a da em5a
|
||||
*
|
||||
* Consume all bytes up to next page boundary
|
||||
*
|
||||
filler ds \,$00
|
||||
*
|
||||
* Must start on page boundary
|
||||
*
|
||||
openIoBuf ds 1024
|
||||
readIoBuf ds BUF_SIZ
|
||||
|
|
@ -0,0 +1,813 @@
|
|||
********************************
|
||||
* *
|
||||
* MORE - UN*X MORE COMMAND *
|
||||
* ASSEMBLES WITH S-C *
|
||||
* *
|
||||
********************************
|
||||
|
||||
* Memory Map
|
||||
*
|
||||
* $0000 - $00FF Zero Page
|
||||
* $0100 - $01FF Stack
|
||||
* $0200 - $03FF Mostly Free, Input Buffer, Interrupt Vectors
|
||||
* $0400 - $07FF Lo-res/Text Page1
|
||||
* $0800 - $0BFF Lo-res/Text Page2 (BASIC programs load here)
|
||||
* $0C00 - $1FFF Free
|
||||
* $2000 - $3FFF Hi-res Page1
|
||||
* $4000 - $5FFF Hi-res Page2
|
||||
* $6000 - $95FF Free
|
||||
* $9600 - $BFFF DOS3.3 and Buffers
|
||||
* $C000 - $CFFF Soft Switches, Expansion Card I/O and ROM
|
||||
* $D000 - $F7FF BASIC ROM (can be bankswitched later models)
|
||||
* $F800 - $FFFF Machine Language Monitor ROM (also can be bankswitched)
|
||||
|
||||
DSK MORE ;WRITE ASSEMBLED FILE TO DISK
|
||||
TYP $06 ;$FF=SYSTEM, $06=BINARY
|
||||
ORG $2000 ;ASSEMBLE START ADDRESS
|
||||
|
||||
* SYSTEM VARIABLES
|
||||
*
|
||||
IN .EQ $200 ;256-CHAR INPUT BUF
|
||||
*
|
||||
* SUBROUTINES IN MONITOR ROM: $F800 - $FFFF
|
||||
*
|
||||
RDKEY .EQ $FD0C ;READS A CHARACTER
|
||||
GETLN .EQ $FD6A ;READS A LINE, WITH PROMPT($33)
|
||||
GETLN1 .EQ $FD6F ;READS A LINE, NO PROMPT
|
||||
CROUT .EQ $FD8E
|
||||
COUT .EQ $FDED
|
||||
PRBYTE .EQ $FDDA
|
||||
*
|
||||
* SUBROUTINES IN BASIC.SYSTEM ROM:
|
||||
|
||||
GETBUFR EQU $BEF5 ;BCC=OKAY & A=HIBYTE OF BUF
|
||||
;BCS=FAIL & A=ERRCODE
|
||||
;X & Y ARE DESTROYED
|
||||
FREEBUFR EQU $BEF8 ;FREE BUFFER
|
||||
|
||||
* PRODOS ENTRY POINT
|
||||
|
||||
PRODOS_MLI EQU $BF00 ;MACHINE LANG IFACE (MLI)
|
||||
*
|
||||
* MEMORY MAPPED I/O: $C000 - $CFFF
|
||||
*
|
||||
RD80VID EQU $C01F ;<=128->40COL, >128->80COL
|
||||
*
|
||||
* SLOT 3 SCRATCHPAD RAM - TEXT PAGE 0 SCREEN HOLE
|
||||
* http://yesterbits.com/media/books/apple/heiserman-1983-intermediate-level-apple-ii-handbook.pdf
|
||||
*
|
||||
OURCH EQU $057B ;80-COL HORIZ CURSOR POSITION
|
||||
OURCV EQU $05FB ;VERTICAL CURSOR POSITION
|
||||
|
||||
* ZERO-PAGE ADDRESSES
|
||||
*
|
||||
ZP.A1L .EQ $3C ;MONITOR GENERAL PURPOSE
|
||||
ZP.A1H .EQ $3D ;MONITOR GENERAL PURPOSE
|
||||
*
|
||||
* PRODOS COMMAND CODES
|
||||
*
|
||||
OPENCMD .EQ $C8
|
||||
READCMD .EQ $CA
|
||||
CLOSCMD .EQ $CC
|
||||
*
|
||||
* CONSTANTS
|
||||
*
|
||||
EOFERR .EQ $4C ;ERROR CODE FOR END-OF-FILE
|
||||
PTR .EQ $06 ;ONLY FREE 0-PAGE LOCATION
|
||||
MAXERCDE .EQ $5A ;LARGEST ERROR CODE
|
||||
CR .EQ $0D ;ASCII CARRIAGE RETURN
|
||||
CR.HIBIT .EQ $8D ;CARRIAGE RET WITH HIGH BIT SET
|
||||
BUFSIZE .EQ $00FF
|
||||
SCR.HGHT .EQ 24 ;SCREEN HEIGHT
|
||||
*
|
||||
* DEBUGGING
|
||||
|
||||
TRACE EQU 0
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PUSH Y ONTO THE STACK *
|
||||
* DESTROYS A *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PUSHY .MA
|
||||
TYA
|
||||
PHA
|
||||
.EM
|
||||
|
||||
********************************
|
||||
* *
|
||||
* POP Y FROM THE STACK *
|
||||
* DESTROYS A *
|
||||
* *
|
||||
********************************
|
||||
|
||||
POPY .MA
|
||||
PLA
|
||||
TAY
|
||||
.EM
|
||||
|
||||
********************************
|
||||
* *
|
||||
* COPY IN BUF TO STRING *
|
||||
* *
|
||||
* X CONTAINS LENGTH OF "IN" *
|
||||
* ]1 IS DEST STRING (LEN BYT) *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
CPIN .MA
|
||||
PUSHY ;SAVE Y
|
||||
STX ]1 ;COPY LENGTH TO FIRST BYTE OF ]1
|
||||
LDY #0 ;INIT Y TO ZERO
|
||||
:1 CPY ]1 ;COMPARE Y WITH LENGTH BYTE
|
||||
BEQ :2 ;DONE IF LENGTH IS REACHED
|
||||
LDA IN,Y ;LOAD IN[Y] INTO ACCUMULATOR
|
||||
CMP #CR ;COMPARE WITH CARRIAGE RETURN
|
||||
BEQ :2 ;STOP AT CARRIAGE RETURN
|
||||
INY ;DEST STR IS 1 AHEAD OF IN BUF
|
||||
STA ]1,Y ;COPY CHAR TO DEST STR ]1
|
||||
JMP :1 ;LOOP TO NEXT CHAR
|
||||
:2 POPY ;RESTORE Y
|
||||
.EM
|
||||
|
||||
********************************
|
||||
* *
|
||||
* WRITES A LENGTH PREFIXED *
|
||||
* STRING TO THE SCREEN *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PUTS .MA
|
||||
PUSHY
|
||||
LDY #0 ;INIT LOOP INDEX
|
||||
:1 CPY ]1 ;HAS STR LENGTH BEEN REACHED
|
||||
BEQ :2 ;IF SO THEN FINISH
|
||||
INY ;MOVE TO INDEX OF NEXT CHAR
|
||||
LDA ]1,Y ;GET THE CHAR TO BE WRITTEN
|
||||
JSR COUT ;WRITE THE CHARACTER
|
||||
JMP :1 ;LOOP
|
||||
:2 POPY
|
||||
.EM
|
||||
|
||||
********************************
|
||||
* *
|
||||
* SET TO #1 (IMMEDIATE 1) *
|
||||
* ]1 DESTINATION *
|
||||
* A IS DESTROYED *
|
||||
* *
|
||||
********************************
|
||||
|
||||
SET1 .MA
|
||||
LDA #1
|
||||
STA ]1
|
||||
.EM
|
||||
|
||||
SET0 .MA
|
||||
LDA #0
|
||||
STA ]1
|
||||
.EM
|
||||
|
||||
SET23 .MA
|
||||
LDA #23
|
||||
STA ]1
|
||||
.EM
|
||||
|
||||
********************************
|
||||
* *
|
||||
* MAIN PROGRAM *
|
||||
* *
|
||||
********************************
|
||||
|
||||
MAIN CLD ;CLEAR DECIMAL FLG, AVOID CRASH
|
||||
>SET0 USRQUIT ;INITIALIZE TO "NO"
|
||||
*
|
||||
* GET FILE NAME
|
||||
*
|
||||
PUTS INFOLINE
|
||||
JSR CROUT
|
||||
:ASKFILE PUTS PROMPT
|
||||
JSR GETLN1 ;LENGTH IN X, CR AT END
|
||||
CPX #0 ;IS THE LENGTH ZERO?
|
||||
BNE :CONT0 ;USER JUST PRESSED RETURN
|
||||
JMP :END
|
||||
|
||||
:CONT0 CPX #1
|
||||
BNE :CONT1
|
||||
LDA #"?"
|
||||
CMP IN
|
||||
BNE :CONT1
|
||||
JSR HELPINFO
|
||||
JMP :ASKFILE
|
||||
:CONT1 CPIN FILENAME ;COPY "IN" BUF TO FILENAME
|
||||
|
||||
DO TRACE
|
||||
JSR PRSTRBYTES
|
||||
JSR GETLN
|
||||
FIN
|
||||
*
|
||||
* GET FILE I/O BUFFER FOR OPEN CALL
|
||||
*
|
||||
LDA #4 ;FOUR 256 BYTE PAGES = 1KB
|
||||
JSR GETBUFR ;GET BUF FROM BASIC.SYSTEM
|
||||
BCC :CONT2 ;CARRY CLEAR MEANS NO ERROR
|
||||
JSR OBUFERR
|
||||
JMP :END
|
||||
:CONT2 STA OBUFADDR+1 ;GETBUFR RETURNS HIBYTE IN A
|
||||
LDA #0 ;PREPARE
|
||||
STA OBUFADDR ;LOBYTE IS 0 B/C ADDR OF PAGE
|
||||
*
|
||||
* OPEN FILE
|
||||
*
|
||||
JSR PRODOS_MLI
|
||||
DB OPENCMD
|
||||
DA OPENPRMS
|
||||
BEQ :CONT3
|
||||
JSR OPENERR
|
||||
JSR FREEBUFR ;CLEAN UP BEFORE TRY AGAIN
|
||||
JMP :ASKFILE
|
||||
*
|
||||
* COPY FILE NUMBER FROM OPEN PARAMETERS TO READ AND CLOSE
|
||||
*
|
||||
:CONT3 LDA OPENFNUM
|
||||
STA READFNUM
|
||||
STA CLOSFNUM
|
||||
*
|
||||
* GET BUFFER FOR READ OPERATION FROM BASIC.SYSTEM
|
||||
*
|
||||
LDA #1 ;ONE 256 BYTE BUFFER
|
||||
JSR GETBUFR ;CALL BASIC.SYSTEM SUB
|
||||
BCC :CONT4
|
||||
JSR RBUFERR ;CARRY SET MEANS ERROR
|
||||
JMP :CLOSFILE
|
||||
:CONT4 STA RBADDR+1 ;STORE HI-BYTE
|
||||
STA ZP_A1H ;FOR 0-PAGE INDIRECTION
|
||||
LDA #0 ;0 FOR LO-BYTE
|
||||
STA RBADDR ;STORE IT
|
||||
STA ZP.A1L ;AGAIN, FOR 0-PAGE INDIRECTION
|
||||
*
|
||||
* PRINT THE FILE
|
||||
*
|
||||
JSR VIEWFILE
|
||||
*
|
||||
* CLEANUP
|
||||
*
|
||||
JSR FREEBUFR ;FREE READ BUFFER
|
||||
*
|
||||
* Close file
|
||||
*
|
||||
:CLOSFILE JSR PRODOS_MLI ;CLOSE THE FILE
|
||||
DB CLOSCMD
|
||||
DA CLOSPRMS
|
||||
BEQ :FREEOBUF
|
||||
JSR CLOSERR
|
||||
|
||||
:FREEOBUF JSR FREEBUFR ;FREE OPEN I/O BUFFER
|
||||
:END NOP
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* END OF MAIN - PROGRAM EXIT *
|
||||
* *
|
||||
********************************
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PROGRAM INFO AND HELP *
|
||||
* *
|
||||
********************************
|
||||
HELPINFO JSR CROUT
|
||||
PUTS INFO0
|
||||
JSR CROUT
|
||||
PUTS INFO1
|
||||
JSR CROUT
|
||||
PUTS INFO2
|
||||
JSR CROUT
|
||||
PUTS INFO3
|
||||
JSR CROUT
|
||||
PUTS INFO4
|
||||
JSR CROUT
|
||||
JSR CROUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN OPENING *
|
||||
* FILE *
|
||||
* *
|
||||
********************************
|
||||
OPENERR STA ERRCODE
|
||||
PUTS OERRMSG
|
||||
PUTS FILENAME
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN CLOSING *
|
||||
* FILE *
|
||||
* *
|
||||
********************************
|
||||
CLOSERR STA ERRCODE
|
||||
PUTS CERRMSG
|
||||
PUTS FILENAME
|
||||
LDA #"'"
|
||||
JSR COUT
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN REQUESTING *
|
||||
* READ BUFFER *
|
||||
* *
|
||||
********************************
|
||||
RBUFERR STA ERRCODE
|
||||
PUTS RBERRMSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* HANDLE ERROR WHEN REQUESTING *
|
||||
* READ BUFFER *
|
||||
* *
|
||||
********************************
|
||||
OBUFERR STA ERRCODE
|
||||
PUTS OBERRMSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR ERRPROC
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT "IN" BUFFER *
|
||||
* *
|
||||
********************************
|
||||
PRINT_IN
|
||||
PUSHY
|
||||
LDA #"X"
|
||||
JSR COUT
|
||||
LDA #"="
|
||||
JSR COUT
|
||||
TXA
|
||||
JSR PRBYTE
|
||||
JSR CROUT
|
||||
|
||||
LDY #0
|
||||
:LOOP CPY #255
|
||||
BEQ :ENDLOOP
|
||||
LDA IN,Y
|
||||
JSR PRBYTE
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
INY
|
||||
JMP :LOOP
|
||||
:ENDLOOP JSR CROUT
|
||||
POPY
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT STRING BYTES *
|
||||
* *
|
||||
********************************
|
||||
PRSTRBYTES
|
||||
PUSHY
|
||||
LDY #0
|
||||
:LOOP CPY #255
|
||||
BEQ :ENDLOOP
|
||||
LDA FILENAME,Y
|
||||
JSR PRBYTE
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
INY
|
||||
JMP :LOOP
|
||||
:ENDLOOP JSR CROUT
|
||||
POPY
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* VIEW FILE SUB *
|
||||
* *
|
||||
********************************
|
||||
|
||||
VIEWFILE
|
||||
DO TRACE
|
||||
>PUTS ENVIEW
|
||||
FIN
|
||||
|
||||
SET1 LINENUM ;INIT LINE NUMBER
|
||||
:LOOP JSR PRODOS_MLI ;CALL PRODOS TO READ FILE
|
||||
DB READCMD ;SPECIFY PRODOS READ COMMAND
|
||||
DA READPRMS ;READ PARAMETERS
|
||||
BNE :READERR
|
||||
JSR WRITEBUF ;WRITE TO SCREEN WHAT WAS READ
|
||||
LDA #1 ;PREPARE FOR NEXT OP
|
||||
CMP USRQUIT ;IF USER WANTS TO QUIT, THEN
|
||||
BEQ :ENDLOOP ;EXIT THE LOOP
|
||||
JMP :LOOP ;ELSE, GET THE NEXT BUFFER
|
||||
:READERR JSR ERRPROC
|
||||
:ENDLOOP NOP
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* WRITE BUFFER TO SCREEN *
|
||||
* *
|
||||
********************************
|
||||
|
||||
WRITEBUF
|
||||
>PUSHY
|
||||
LDY #0 ;INIT CHAR COUNTER VARIABLE
|
||||
.1 CPY READCNT ;COMPARE TO MAX CHARS
|
||||
BEQ .3
|
||||
LDA (ZP.A1L),Y ;GET CHAR FROM BUFFER
|
||||
ORA #%10000000 ;TURN ON HIGH BIT FOR PRINTING
|
||||
JSR COUT ;COUT PRESERVES ACCUM
|
||||
*
|
||||
* CHECK END OF LINE
|
||||
*
|
||||
CMP #CR.HIBIT ;COMPARE TO CARRIAGE RETURN
|
||||
BNE .2 ;IF NOT END OF LINE, NEXT CHAR
|
||||
INC LINENUM ;NEXT LINE HAS BEEN REACHED
|
||||
*
|
||||
* CHECK AT END OF PAGE
|
||||
*
|
||||
LDA LINENUM
|
||||
CMP #SCR.HGHT ;AT BOTTOM OF SCREEN?
|
||||
BNE .2 ;NO? THEN NEXT CHAR
|
||||
JSR STATBAR ;YES? THEN SHOW THE STATUS BAR
|
||||
LDA #1 ;SETUP FOR NEXT LINE
|
||||
CMP USRQUIT ;DID USER ASK TO QUIT
|
||||
BEQ .3 ;YES? THEN END SUB
|
||||
.2 INY ;STATBAR HAS ADJUSTED LINENUM
|
||||
JMP .1
|
||||
.3 >POPY
|
||||
|
||||
DO TRACE
|
||||
PUTS EXWRITEBUF
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* PRINT ASCII IN HEX *
|
||||
* *
|
||||
********************************
|
||||
|
||||
PRASCII PHA
|
||||
LDA #"["
|
||||
JSR COUT
|
||||
PLA
|
||||
JSR PRBYTE
|
||||
LDA #"]"
|
||||
JSR COUT
|
||||
LDA #" "
|
||||
JSR COUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* DO THE STATUS BAR *
|
||||
* *
|
||||
********************************
|
||||
|
||||
STATBAR
|
||||
DO TRACE
|
||||
>PUTS ENSTATB
|
||||
FIN
|
||||
|
||||
>PUSHY
|
||||
>PUTS BAR
|
||||
.1 JSR RDKEY ;GET A KEY FROM THE USER
|
||||
CMP #" " ;CHECK IF SPACE ENTERED
|
||||
BNE .2 ;IF NOT FORWARD TO NEXT CHECK
|
||||
>SET1 LINENUM ;ADVANCE ONE PAGE, STORE 1
|
||||
JMP .4 ;PROCESSED SPACE SO DONE
|
||||
.2 CMP #CR.HIBIT ;CHECK FOR CARRIAGE RETURN
|
||||
BNE .3
|
||||
>SET23 LINENUM
|
||||
JMP .4
|
||||
.3 CMP #"Q" ;USER WANTS TO QUIT
|
||||
BNE .1 ;NO RECOGNIZED INPUT
|
||||
>SET1 USRQUIT
|
||||
.4 JSR ERASEBAR
|
||||
>POPY
|
||||
|
||||
DO TRACE
|
||||
>PUTS EXSTATB
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* ERASE STATUS BAR *
|
||||
* *
|
||||
********************************
|
||||
|
||||
ERASEBAR
|
||||
DO TRACE
|
||||
>PUTS ENERASEB
|
||||
FIN
|
||||
|
||||
>PUSHY
|
||||
>SET0 OURCH ;RESET CURSOR TO BEG OF LINE
|
||||
LDY #0 ;INIT COUNTER FOR SPACES
|
||||
.1 CPY BAR ;FIRST BYTE IS LENGTH
|
||||
BEQ .2 ;IF Y=LEN THEN DONE
|
||||
LDA #" " ;LOAD SPACE
|
||||
JSR COUT ;WRITE TO SCREEN
|
||||
INY ;MAKE PROGRESS
|
||||
JMP .1 ;LOOP TO NEXT CHAR
|
||||
.2 >SET0 OURCH ;RESET CURSON TO BEG OF LINE
|
||||
POPY
|
||||
|
||||
DO TRACE
|
||||
>PUTS EXERASEB
|
||||
FIN
|
||||
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* ERROR HANDLER *
|
||||
* INPUT PARAM: A HOLDS ERRCODE *
|
||||
* *
|
||||
********************************
|
||||
|
||||
ERRPROC
|
||||
STA ERRCODE
|
||||
CMP #0
|
||||
BNE :EEOF
|
||||
JMP :END
|
||||
|
||||
:EEOF CMP #EOFERR
|
||||
BNE :E01
|
||||
JMP :END
|
||||
|
||||
:E01 CMP #1
|
||||
BNE :E04
|
||||
PUTS E01MSG
|
||||
JMP :END
|
||||
|
||||
:E04 CMP #4
|
||||
BNE :E25
|
||||
PUTS E04MSG
|
||||
JMP :END
|
||||
|
||||
:E25 CMP #$25
|
||||
BNE :E27
|
||||
PUTS E25MSG
|
||||
JMP :END
|
||||
|
||||
:E27 CMP #$27
|
||||
BNE :E28
|
||||
PUTS E27MSG
|
||||
JMP :END
|
||||
|
||||
:E28 CMP #$28
|
||||
BNE :E2B
|
||||
PUTS E28MSG
|
||||
JMP :END
|
||||
|
||||
:E2B CMP #$2B
|
||||
BNE :E2E
|
||||
PUTS E2BMSG
|
||||
JMP :END
|
||||
|
||||
:E2E CMP #$2E
|
||||
BNE :E40
|
||||
PUTS E2EMSG
|
||||
JMP :END
|
||||
|
||||
:E40 CMP #$40
|
||||
BNE :E42
|
||||
PUTS E40MSG
|
||||
JMP :END
|
||||
|
||||
:E42 CMP #$42
|
||||
BNE :E43
|
||||
PUTS E42MSG
|
||||
JMP :END
|
||||
|
||||
:E43 CMP #$43
|
||||
BNE :E44
|
||||
PUTS E43MSG
|
||||
JMP :END
|
||||
|
||||
:E44 CMP #$44
|
||||
BNE :E45
|
||||
PUTS E44MSG
|
||||
JMP :END
|
||||
|
||||
:E45 CMP #$45
|
||||
BNE :E46
|
||||
PUTS E45MSG
|
||||
JMP :END
|
||||
|
||||
:E46 CMP #$46
|
||||
BNE :E47
|
||||
PUTS E46MSG
|
||||
JMP :END
|
||||
|
||||
:E47 CMP #$47
|
||||
BNE :E48
|
||||
PUTS E47MSG
|
||||
JMP :END
|
||||
|
||||
:E48 CMP #$48
|
||||
BNE :E49
|
||||
PUTS E48MSG
|
||||
JMP :END
|
||||
|
||||
:E49 CMP #$49
|
||||
BNE :E4A
|
||||
PUTS E49MSG
|
||||
JMP :END
|
||||
|
||||
:E4A CMP #$4A
|
||||
BNE :E4B
|
||||
PUTS E4AMSG
|
||||
JMP :END
|
||||
|
||||
:E4B CMP #$4B
|
||||
BNE :E4C
|
||||
PUTS E4BMSG
|
||||
JMP :END
|
||||
|
||||
:E4C CMP #$4C
|
||||
BNE :E4D
|
||||
PUTS E4CMSG
|
||||
JMP :END
|
||||
|
||||
:E4D CMP #$4D
|
||||
BNE :E4E
|
||||
PUTS E4DMSG
|
||||
JMP :END
|
||||
|
||||
:E4E CMP #$4E
|
||||
BNE :E50
|
||||
PUTS E4EMSG
|
||||
JMP :END
|
||||
|
||||
:E50 CMP #$50
|
||||
BNE :E51
|
||||
PUTS E50MSG
|
||||
JMP :END
|
||||
|
||||
:E51 CMP #$51
|
||||
BNE :E52
|
||||
PUTS E51MSG
|
||||
JMP :END
|
||||
|
||||
:E52 CMP #$52
|
||||
BNE :E53
|
||||
PUTS E52MSG
|
||||
JMP :END
|
||||
|
||||
:E53 CMP #$53
|
||||
BNE :E55
|
||||
PUTS E53MSG
|
||||
JMP :END
|
||||
|
||||
:E55 CMP #$55
|
||||
BNE :E56
|
||||
PUTS E55MSG
|
||||
JMP :END
|
||||
|
||||
:E56 CMP #$56
|
||||
BNE :E57
|
||||
PUTS E56MSG
|
||||
JMP :END
|
||||
|
||||
:E57 CMP #$57
|
||||
BNE :E5A
|
||||
PUTS E57MSG
|
||||
JMP :END
|
||||
|
||||
:E5A CMP #$5A
|
||||
BNE :E_UNK
|
||||
PUTS E5AMSG
|
||||
JMP :END
|
||||
|
||||
:E_UNK PUTS E_UNK_MSG
|
||||
LDA #":"
|
||||
JSR COUT
|
||||
LDA ERRCODE
|
||||
JSR PRBYTE
|
||||
:END JSR CROUT
|
||||
RTS
|
||||
|
||||
********************************
|
||||
* *
|
||||
* DATA DIVISION HAHA *
|
||||
* *
|
||||
********************************
|
||||
|
||||
INFOLINE STR "ENTER [?] FOR PROGRAM INFO AND HELP"
|
||||
INFO0 STR "MORE - PAGES THROUGH TEXT FILE"
|
||||
INFO1 STR "COPYRIGHT (C) 2024 BILL CHATFIELD"
|
||||
INFO2 STR "DISTRIBUTED UNDER THE GPL VERSION 3"
|
||||
INFO3 STR "https://github.com/gungwald/prodos-more"
|
||||
INFO4 STR "PRESS RETURN TO QUIT"
|
||||
PROMPT STR "FILE:"
|
||||
ERRTXT STR "ERROR:"
|
||||
FILENAME DS $FF
|
||||
ERRCODE DS 1
|
||||
LINENUM DS 1
|
||||
BAR STR '[RET] LINE [SPC] PAGE [Q]UIT'
|
||||
USRQUIT DS 1
|
||||
BUFCHAR DS 1
|
||||
USRCHAR DS 1
|
||||
|
||||
OERRMSG STR "CANNOT OPEN "
|
||||
CERRMSG STR "CANNOT CLOSE "
|
||||
RBERRMSG STR "CANNOT CREATE READ BUFFER"
|
||||
OBERRMSG STR "CANNOT CREATE FILE BUFFER"
|
||||
|
||||
E00MSG STR "NO ERROR"
|
||||
E01MSG STR "BAD SYSTEM CALL NUMBER"
|
||||
E04MSG STR "BAD SYSTEM CALL PARAMETER COUNT"
|
||||
E25MSG STR "INTERRUPT TABLE FULL"
|
||||
E27MSG STR "I/O ERROR"
|
||||
E28MSG STR "NO DEVICE CONNECTED"
|
||||
E2BMSG STR "DISK WRITE PROTECTED"
|
||||
E2EMSG STR "DISK SWITCHED"
|
||||
E40MSG STR "INVALID PATHNAME"
|
||||
E42MSG STR "MAXIMUM NUMBER OF FILES OPEN"
|
||||
E43MSG STR "INVALID REFERENCE NUMBER"
|
||||
E44MSG STR "DIRECTORY NOT FOUND"
|
||||
E45MSG STR "VOLUME NOT FOUND"
|
||||
E46MSG STR "FILE NOT FOUND"
|
||||
E47MSG STR "DUPLICATE FILENAME"
|
||||
E48MSG STR "VOLUME FULL"
|
||||
E49MSG STR "VOLUME DIRECTORY FULL"
|
||||
E4AMSG STR "INCOMPATIBLE FILE FORMAT OR PRODOS DIRECTORY"
|
||||
E4BMSG STR "UNSUPPORTED STORAGE TYPE"
|
||||
E4CMSG STR "END OF FILE ENCOUNTERED"
|
||||
E4DMSG STR "POSITION OUT OF RANGE"
|
||||
E4EMSG STR "FILE ACCESS ERROR OR FILE LOCKED"
|
||||
E50MSG STR "FILE IS OPEN"
|
||||
E51MSG STR "DIRECTORY STRUCTURE DAMAGED"
|
||||
E52MSG STR "NOT A PRODOS VOLUME"
|
||||
E53MSG STR "INVALID SYSTEM CALL PARAMETER"
|
||||
E55MSG STR "VOLUME CONTROL BLOCK TABLE FULL"
|
||||
E56MSG STR "BAD BUFFER ADDRESS"
|
||||
E57MSG STR "DUPLICATE VOLUME"
|
||||
E5AMSG STR "FILE STRUCTURE DAMAGED"
|
||||
E_UNK_MSG STR "UNKNOWN ERROR CODE"
|
||||
|
||||
ENVIEW STR 'ENTERING VIEWFILE'
|
||||
EXVIEW STR 'EXITING VIEWFILE'
|
||||
EXWRITEBUF STR 'EXITING WRITEBUF'
|
||||
ENSTATB STR 'ENTERING STATUSBAR'
|
||||
EXSTATB STR 'EXITING STATUSBAR'
|
||||
ENERASEB STR 'ENTERING ERASEBAR'
|
||||
EXERASEB STR 'EXITING ERASEBAR'
|
||||
*
|
||||
* OPEN PARAMETERS
|
||||
*
|
||||
OPENPRMS .DA #3
|
||||
.DA FILENAME
|
||||
OBUFADDR .BS 2
|
||||
OPENFNUM .BS 1
|
||||
*
|
||||
* READ PARAMETERS
|
||||
*
|
||||
READPRMS .DA #4
|
||||
READFNUM .BS 1
|
||||
RBADDR .BS 2
|
||||
REQCNT .DA BUFSIZE
|
||||
READCNT .BS 2
|
||||
*
|
||||
* CLOSE PARAMETERS
|
||||
*
|
||||
CLOSPRMS .DA #1
|
||||
CLOSFNUM .BS 1
|
||||
*
|
||||
* BUFFERS
|
||||
*
|
||||
* CONSUME ALL BYTES UP TO THE NEXT PAGE BOUNDRY
|
||||
*FILLER DS \,$00
|
||||
* MUST START ON PAGE BOUNDRY
|
||||
*OPENBUF DS 1024
|
||||
*READBUF DS BUFSIZE
|
Binary file not shown.
|
@ -0,0 +1,195 @@
|
|||
MORE(1) User Commands MORE(1)
|
||||
|
||||
NAME
|
||||
more - display the contents of a file in a terminal
|
||||
|
||||
SYNOPSIS
|
||||
more [options] file ...
|
||||
|
||||
DESCRIPTION
|
||||
more is a filter for paging through text one screenful at a time. This
|
||||
version is especially primitive. Users should realize that less(1)
|
||||
provides more(1) emulation plus extensive enhancements.
|
||||
|
||||
OPTIONS
|
||||
Options are also taken from the environment variable MORE (make sure to
|
||||
precede them with a dash (-)) but command-line options will override
|
||||
those.
|
||||
|
||||
-d, --silent
|
||||
Prompt with "[Press space to continue, 'q' to quit.]", and display
|
||||
"[Press 'h' for instructions.]" instead of ringing the bell when an
|
||||
illegal key is pressed.
|
||||
|
||||
-l, --logical
|
||||
Do not pause after any line containing a ^L (form feed).
|
||||
|
||||
-e, --exit-on-eof
|
||||
Exit on End-Of-File, enabled by default if POSIXLY_CORRECT
|
||||
environment variable is not set or if not executed on terminal.
|
||||
|
||||
-f, --no-pause
|
||||
Count logical lines, rather than screen lines (i.e., long lines are
|
||||
not folded).
|
||||
|
||||
-p, --print-over
|
||||
Do not scroll. Instead, clear the whole screen and then display the
|
||||
text. Notice that this option is switched on automatically if the
|
||||
executable is named page.
|
||||
|
||||
-c, --clean-print
|
||||
Do not scroll. Instead, paint each screen from the top, clearing
|
||||
the remainder of each line as it is displayed.
|
||||
|
||||
-s, --squeeze
|
||||
Squeeze multiple blank lines into one.
|
||||
|
||||
-u, --plain
|
||||
Suppress underlining. This option is silently ignored as backwards
|
||||
compatibility.
|
||||
|
||||
-n, --lines number
|
||||
Specify the number of lines per screenful. The number argument is a
|
||||
positive decimal integer. The --lines option shall override any
|
||||
values obtained from any other source, such as number of lines
|
||||
reported by terminal.
|
||||
|
||||
-number
|
||||
A numeric option means the same as --lines option argument.
|
||||
|
||||
+number
|
||||
Start displaying each file at line number.
|
||||
|
||||
+/string
|
||||
The string to be searched in each file before starting to display
|
||||
it.
|
||||
|
||||
-h, --help
|
||||
Display help text and exit.
|
||||
|
||||
-V, --version
|
||||
Print version and exit.
|
||||
|
||||
COMMANDS
|
||||
Interactive commands for more are based on vi(1). Some commands may be
|
||||
preceded by a decimal number, called k in the descriptions below. In
|
||||
the following descriptions, ^X means control-X.
|
||||
|
||||
h or ?
|
||||
Help; display a summary of these commands. If you forget all other
|
||||
commands, remember this one.
|
||||
|
||||
SPACE
|
||||
Display next k lines of text. Defaults to current screen size.
|
||||
|
||||
z
|
||||
Display next k lines of text. Defaults to current screen size.
|
||||
Argument becomes new default.
|
||||
|
||||
RETURN
|
||||
Display next k lines of text. Defaults to 1. Argument becomes new
|
||||
default.
|
||||
|
||||
d or ^D
|
||||
Scroll k lines. Default is current scroll size, initially 11.
|
||||
Argument becomes new default.
|
||||
|
||||
q or Q or INTERRUPT
|
||||
Exit.
|
||||
|
||||
s
|
||||
Skip forward k lines of text. Defaults to 1.
|
||||
|
||||
f
|
||||
Skip forward k screenfuls of text. Defaults to 1.
|
||||
|
||||
b or ^B
|
||||
Skip backwards k screenfuls of text. Defaults to 1. Only works with
|
||||
files, not pipes.
|
||||
|
||||
'
|
||||
Go to the place where the last search started.
|
||||
|
||||
=
|
||||
Display current line number.
|
||||
|
||||
/pattern
|
||||
Search for kth occurrence of regular expression. Defaults to 1.
|
||||
|
||||
n
|
||||
Search for kth occurrence of last regular expression. Defaults to
|
||||
1.
|
||||
|
||||
!command or :!command
|
||||
Execute command in a subshell.
|
||||
|
||||
v
|
||||
Start up an editor at current line. The editor is taken from the
|
||||
environment variable VISUAL if defined, or EDITOR if VISUAL is not
|
||||
defined, or defaults to vi(1) if neither VISUAL nor EDITOR is
|
||||
defined.
|
||||
|
||||
^L
|
||||
Redraw screen.
|
||||
|
||||
:n
|
||||
Go to kth next file. Defaults to 1.
|
||||
|
||||
:p
|
||||
Go to kth previous file. Defaults to 1.
|
||||
|
||||
:f
|
||||
Display current file name and line number.
|
||||
|
||||
.
|
||||
Repeat previous command.
|
||||
|
||||
ENVIRONMENT
|
||||
The more command respects the following environment variables, if they
|
||||
exist:
|
||||
|
||||
MORE
|
||||
This variable may be set with favored options to more.
|
||||
|
||||
SHELL
|
||||
Current shell in use (normally set by the shell at login time).
|
||||
|
||||
TERM
|
||||
The terminal type used by more to get the terminal characteristics
|
||||
necessary to manipulate the screen.
|
||||
|
||||
VISUAL
|
||||
The editor the user prefers. Invoked when command key v is pressed.
|
||||
|
||||
EDITOR
|
||||
The editor of choice when VISUAL is not specified.
|
||||
|
||||
POSIXLY_CORRECT
|
||||
Disable exit-on-eof (see option -e for more details).
|
||||
|
||||
HISTORY
|
||||
The more command appeared in 3.0BSD. This man page documents more
|
||||
version 5.19 (Berkeley 6/29/88), which is currently in use in the Linux
|
||||
community. Documentation was produced using several other versions of
|
||||
the man page, and extensive inspection of the source code.
|
||||
|
||||
AUTHORS
|
||||
Eric Shienbrood, UC Berkeley.
|
||||
|
||||
Modified by Geoff Peck, UCB to add underlining, single spacing.
|
||||
|
||||
Modified by John Foderaro, UCB to add -c and MORE environment variable.
|
||||
|
||||
SEE ALSO
|
||||
less(1), vi(1)
|
||||
|
||||
REPORTING BUGS
|
||||
For bug reports, use the issue tracker at
|
||||
https://github.com/util-linux/util-linux/issues.
|
||||
|
||||
AVAILABILITY
|
||||
The more command is part of the util-linux package which can be
|
||||
downloaded from Linux Kernel Archive
|
||||
<https://www.kernel.org/pub/linux/utils/util-linux/>.
|
||||
|
||||
util-linux 2.39.3 2023-11-21 MORE(1)
|
Loading…
Reference in New Issue