mirror of https://github.com/A2osX/A2osX.git
348 lines
5.4 KiB
Plaintext
348 lines
5.4 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF bin/cmp
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*--------------------------------------
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.INB inc/macros.i
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.INB inc/a2osx.i
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.INB inc/mli.i
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.INB inc/mli.e.i
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*--------------------------------------
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.DUMMY
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.OR ZPBIN
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ZS.START
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ArgIndex .BS 1
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ZPPtr1 .BS 2
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bPause .BS 1
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bAll .BS 1
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bVerbose .BS 1
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bDiff .BS 1
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hFile1 .BS 1
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hBuf1 .BS 1
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ZPBufPtr1 .BS 2
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bSkip1 .BS 1
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hFile2 .BS 1
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hBuf2 .BS 1
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ZPBufPtr2 .BS 2
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bSkip2 .BS 1
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Offset .BS 2
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BufCnt .BS 2
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SeekOfs .BS 4
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ZS.END .ED
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA #S.PS.F.EVENT S.PS.F
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.DA #0
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.DA CS.END-CS.START CS
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.DA DS.END-DS.START DS
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.DA #64 SS
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.DA #ZS.END-ZS.START Zero Page Size
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA CS.INIT
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.DA CS.RUN
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.DA CS.DOEVENT
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.DA CS.QUIT
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L.MSG.USAGE .DA MSG.USAGE
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L.MSG.DIFF .DA MSG.DIFF
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.DA 0
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*--------------------------------------
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CS.INIT clc
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rts
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*--------------------------------------
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CS.RUN
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.1 inc ArgIndex
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lda ArgIndex
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>SYSCALL ArgV
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bcs .7
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>STYA ZPPtr1
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lda (ZPPtr1)
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cmp #'-'
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bne .2
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jsr CS.RUN.CheckOpt
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bcc .1
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.99 >LDYA L.MSG.USAGE
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>SYSCALL PutS
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lda #E.SYN
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sec
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.9 rts
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.2 lda hFile1
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bne .3
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jsr CS.RUN.OPEN
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bcs .9
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sta hFile1
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bra .1
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.3 lda hFile2
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bne .4
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jsr CS.RUN.OPEN
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bcs .9
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sta hFile2
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bra .1
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.4 bit bSkip1
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bmi .5
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jsr CS.RUN.SEEK
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bcs .9
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sec
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ror bSkip1
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bra .1
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.5 bit bSkip2
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bmi .99
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sta bSkip2
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jsr CS.RUN.SEEK
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bcs .9
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sec
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ror bSkip2
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jmp .1
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.7 lda hFile2
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beq .99
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lda hFile1
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beq .99
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.8 >LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPBufPtr1
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stx hBuf1
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPBufPtr2
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stx hBuf2
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*--------------------------------------
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CS.RUN.LOOP ldy #S.PS.hStdIn
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lda (pPS),y
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>SYSCALL FEOF
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bcs .9 IO error
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tay
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bne .1 no char
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>SYSCALL GetChar
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bcs .9 IO error
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cmp #$03 Ctrl-C
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beq .9 Abort....
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cmp #$13 Ctrl-S
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bne .1
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lda bPause
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eor #$ff
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sta bPause
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bne CS.RUN.LOOP
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.1 lda bPause
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bne CS.RUN.LOOP Pause...
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jsr CS.RUN.READ1
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bcc .2
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cmp #MLI.E.EOF
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bne .9
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bra .99
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.2 >STYA BufCnt
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jsr CS.RUN.READ2
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bcc .20
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cmp #MLI.E.EOF
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bne .9
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bra .99
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.20 cpy BufCnt
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pha
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sbc BufCnt+1
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pla
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bcc .3
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>STYA BufCnt
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.3 ldy #0
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.4 lda (ZPBufPtr1),y
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cmp (ZPBufPtr2),y
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beq .8
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lda #$E0
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sta bDiff
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bit bVerbose
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bpl .5
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jsr CS.RUN.Print
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bcs .9
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.5 bit bAll
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bpl .99
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.8 iny
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cpy BufCnt
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bne .4
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inc Offset
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bne CS.RUN.LOOP
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inc Offset+1
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bra CS.RUN.LOOP
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.99 lda bDiff
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.9 sec
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rts
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*--------------------------------------
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CS.RUN.OPEN >PUSHW ZPPtr1
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>PUSHBI O.RDONLY
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>PUSHBI 0 Type
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>PUSHWZ Aux type
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>SYSCALL FOpen
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rts
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*--------------------------------------
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CS.RUN.SEEK >LDYA ZPPtr1
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>SYSCALL AToL
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bcs .9
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>PULLL SeekOfs
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lda bSkip1
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bmi .1
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>PUSHB hFile1
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>PUSHL SeekOfs
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>PUSHBI SEEK.SET
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>SYSCALL FSeek
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bcs .9
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.1 >PUSHB hFile2
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>PUSHL SeekOfs
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>PUSHBI SEEK.SET
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>SYSCALL FSeek
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.9 rts
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*--------------------------------------
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CS.RUN.READ1 >PUSHB hFile1
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>PUSHW ZPBufPtr1
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>PUSHWI 256
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>SYSCALL FRead
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rts
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*--------------------------------------
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CS.RUN.READ2 >PUSHB hFile2
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>PUSHW ZPBufPtr2
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>PUSHWI 256
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>SYSCALL FRead
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rts
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*--------------------------------------
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CS.RUN.Print phy
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>PUSHW L.MSG.DIFF
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>PUSHW Offset
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tya
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>PUSHA
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>PUSHB (ZPBufPtr1),y
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>PUSHB (ZPBufPtr2),y
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>PUSHBI 5
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>SYSCALL PrintF
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ply
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rts
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*--------------------------------------
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CS.QUIT lda hFile2
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beq .1
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>SYSCALL FClose
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.1 lda hFile1
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beq .2
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>SYSCALL FClose
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.2 lda hBuf2
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beq .3
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>SYSCALL FreeMem
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.3 lda hBuf1
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beq .8
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>SYSCALL FreeMem
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.8 clc
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rts
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*--------------------------------------
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CS.DOEVENT sec
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rts
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*--------------------------------------
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CS.RUN.CheckOpt ldy #1
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lda (ZPPtr1),y
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ldy #OptionVars-OptionList-1
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.2 cmp OptionList,y
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beq .3
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dey
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bpl .2
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sec
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rts
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.3 ldx OptionVars,y
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lda #$ff
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sta 0,x
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clc
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rts
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*--------------------------------------
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CS.END
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*--------------------------------------
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OptionList .AS "AaVv"
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OptionVars .DA #bAll,#bAll,#bVerbose,#bVerbose
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*--------------------------------------
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MSG.USAGE .CS "Usage : CMP File1 File2 [SKIP1 [SKIP2]]\r\n"
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.CS " -A : Shows All differences\r\n"
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.CZ " -V : Verbose Mode\r\n"
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MSG.DIFF .CZ "%H%h:%h %h\r\n"
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*--------------------------------------
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.DUMMY
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.OR 0
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DS.START
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DS.END .ED
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*--------------------------------------
|
||
MAN
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SAVE usr/src/bin/cmp.s
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ASM
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