mirror of https://github.com/A2osX/A2osX.git
379 lines
6.4 KiB
Plaintext
379 lines
6.4 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/cat
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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/kernel.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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ZPPtr1 .BS 2
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ZPBufPtr .BS 2
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ByteIndex .BS 1
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ArgCount .BS 1
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FileCount .BS 1
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bPause .BS 1
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bPrintAll .BS 1
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bLineNum .BS 1
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bSuppressBlankLine .BS 1
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ArgIndex .BS 1
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hBuf .BS 1
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hFile .BS 1
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LineNum .BS 2
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bPrintedBlankLine .BS 1
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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.CRLF .DA MSG.CRLF
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L.MSG.INIT .DA MSG.INIT
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L.MSG.LINENUM .DA MSG.LINENUM
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L.MSG.CTRLCHAR .DA MSG.CTRLCHAR
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L.ASCII .DA ASCII
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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 inc ArgCount
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lda ArgCount
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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 .4
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ldy #1
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lda (ZPPtr1),y
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beq .99
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.1 ldx #OptionVars-OptionList-1
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.2 cmp OptionList,x
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beq .3
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dex
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bpl .2
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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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.3 lda OptionVars,x
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tax
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* sec
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ror 0,x
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iny
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lda (ZPPtr1),y
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bne .1
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bra CS.RUN
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.4 inc FileCount
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bra CS.RUN scan for any other args
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.7 lda FileCount
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beq .99
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>LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPBufPtr
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stx hBuf
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ldy #S.PS.hStdOut
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lda (pPS),y
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tay
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ldx FILEs.hFD-1,y
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ldy FDs.pLO-1,x
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lda FDs.pHI-1,x
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>STYA ZPPtr1
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lda (ZPPtr1)
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beq CS.RUN.LOOP
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cmp #S.FD.T.PIPE
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beq CS.RUN.LOOP
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>PUSHW L.MSG.INIT
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>PUSHBI 0
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>SYSCALL PrintF
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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 .90 IO error
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tay
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bne .10 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 #$13 Ctrl-S
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bne .10
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lda bPause
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eor #$ff
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sta bPause
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bne CS.RUN.LOOP
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.10 lda bPause
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bne CS.RUN.LOOP Pause...
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.11 lda hFile
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bne .2
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.1 inc ArgIndex
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lda ArgIndex
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>SYSCALL ArgV
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bcs .99 No more arg...the end!
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>STYA ZPPtr1
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lda (ZPPtr1)
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cmp #'-'
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beq .1 An option, skip...
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>LDYA ZPPtr1
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jsr CS.RUN.OPEN
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.90 bcs .9
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sta hFile
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.2 >PUSHA
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>PUSHW ZPBufPtr
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>PUSHWI 254 Leave room for CRLF
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>SYSCALL FGetS
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bcs .7
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jsr CS.RUN.PRINT
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bcc CS.RUN.LOOP
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rts
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.7 cmp #MLI.E.EOF
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bne .9
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jsr CS.RUN.CLOSE
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jmp CS.RUN.LOOP
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.99 lda #0 Exit with no Error
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.9 sec
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rts
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*--------------------------------------
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CS.RUN.OPEN stz bPrintedBlankLine Reset this flag for the new file
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>PUSHYA
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>PUSHBI O.RDONLY+O.TEXT
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>PUSHBI S.FI.T.TXT
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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.PRINT inc LineNum
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bne .10
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inc LineNum+1
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.10 lda bSuppressBlankLine
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bpl .2
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lda (ZPBufPtr)
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bne .1 Empty line ?
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lda bPrintedBlankLine
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bmi .8
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lda #$ff
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sta bPrintedBlankLine
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bra .2
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.1 stz bPrintedBlankLine
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.2 jsr CS.RUN.PRINTNUM
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bcs .99
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lda bPrintAll
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bmi .3
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ldy #$ff
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.20 iny
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lda (ZPBufPtr),y
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beq .21
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cmp #C.SPACE
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bcs .20
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lda #C.SPACE
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sta (ZPBufPtr),y
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bra .20
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.21 >LDYA ZPBufPtr
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>SYSCALL PutS
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rts
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*--------------------------------------
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.3 stz ByteIndex
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.4 ldy ByteIndex
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lda (ZPBufPtr),y
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beq .7
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cmp #C.SPACE
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bcc .5
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>SYSCALL PutChar
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.99 bcs .9
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bra .62
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.8 clc
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rts
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.5 tax
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>LDYA L.ASCII
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>STYA ZPPtr1
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.6 dex
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bmi .61
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lda ZPPtr1
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sec
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adc (ZPPtr1)
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sta ZPPtr1
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bcc .6
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inc ZPPtr1+1
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bra .6
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.61 >PUSHW L.MSG.CTRLCHAR
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>PUSHW ZPPtr1
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>PUSHBI 2
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>SYSCALL PrintF
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bcs .9
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.62 inc ByteIndex
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bne .4
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.7 >PUSHW L.MSG.CRLF
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>PUSHBI 0
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>SYSCALL PrintF
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.9 rts
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*--------------------------------------
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CS.RUN.PRINTNUM clc
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lda bLineNum
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bpl .8
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>PUSHW L.MSG.LINENUM
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>PUSHW LineNum
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>PUSHBI 2
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>SYSCALL PrintF
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.8 rts
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*--------------------------------------
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CS.QUIT lda hBuf
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beq CS.RUN.CLOSE
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>SYSCALL FreeMem
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CS.RUN.CLOSE lda hFile
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beq .8
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stz hFile
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>SYSCALL FClose
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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.END
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*--------------------------------------
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OptionList .AS "ANSans"
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OptionVars .DA #bPrintAll,#bLineNum,#bSuppressBlankLine,#bPrintAll,#bLineNum,#bSuppressBlankLine
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*--------------------------------------
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MSG.USAGE .CS "Usage : CAT File1 [File2...]\r\n"
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.CS " -A : Show All non printable characters\r\n"
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.CS " -N : Number all output lines\r\n"
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.CS " -S : Suppress repeated empty output lines"
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MSG.CRLF .CZ "\r\n"
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MSG.INIT .CZ "\e[?7h" Enable Line Wrap
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MSG.LINENUM .CZ "%5D:"
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MSG.CTRLCHAR .CZ "[%S]"
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*--------------------------------------
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ASCII .PS "NUL"
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.PS "SOH"
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.PS "STX"
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.PS "ETX"
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.PS "EOT"
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.PS "ENQ"
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.PS "ACK"
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.PS "BEL"
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.PS "BS"
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.PS "TAB"
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.PS "LF"
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.PS "VT"
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.PS "FF"
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.PS "CR"
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.PS "SO"
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.PS "SI"
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.PS "DLE"
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.PS "DC1"
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.PS "DC2"
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.PS "DC3"
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.PS "DC4"
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.PS "NAK"
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.PS "SYN"
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.PS "ETB"
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.PS "CAN"
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.PS "EM"
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.PS "SUB"
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.PS "ESC"
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.PS "FS"
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.PS "GS"
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.PS "RS"
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.PS "US"
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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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*--------------------------------------
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MAN
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SAVE usr/src/bin/cat.s
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ASM
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