A2osX/BIN/CAT.S.txt

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NEW
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AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
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.TF bin/cat
*--------------------------------------
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.INB inc/macros.i
.INB inc/a2osx.i
.INB inc/mli.i
.INB inc/mli.e.i
*--------------------------------------
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.DUMMY
.OR ZPBIN
ZS.START
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ZPPtr1 .BS 2
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ZPBufPtr .BS 2
ByteIndex .BS 1
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ArgCount .BS 1
FileCount .BS 1
bPause .BS 1
bPrintAll .BS 1
bLineNum .BS 1
bSuppressBlankLine .BS 1
ArgIndex .BS 1
hBuf .BS 1
hFile .BS 1
LineNum .BS 2
bPrintedBlankLine .BS 1
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ZS.END .ED
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
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.DA #S.PS.F.EVENT S.PS.F
.DA #0
.DA CS.END-CS.START CS
.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
.DA 0
*--------------------------------------
* Relocation Table
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*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.MSG.USAGE .DA MSG.USAGE
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L.MSG.CRLF .DA MSG.CRLF
L.MSG.LINENUM .DA MSG.LINENUM
L.MSG.CTRLCHAR .DA MSG.CTRLCHAR
L.ASCII .DA ASCII
.DA 0
*--------------------------------------
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CS.INIT clc
rts
*--------------------------------------
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CS.RUN
.1 inc ArgCount
lda ArgCount
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>SYSCALL ArgV
bcs .7
>STYA ZPPtr1
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lda (ZPPtr1)
cmp #'-'
bne .4
ldy #1
lda (ZPPtr1),y
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ldx #OptionList.Cnt-1
.2 cmp OptionList,x
beq .3
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dex
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bpl .2
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.99 >PUSHW L.MSG.USAGE
>PUSHBI 0
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>SYSCALL PrintF
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lda #E.SYN
sec
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.9 rts
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.3 ldy OptionVars,x
lda #$80
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sta 0,y
bra .1
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.4 inc FileCount
bra .1 scan for any other args
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.7 lda FileCount
beq .99
>LDYAI 256
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>SYSCALL GetMem
bcs .9
>STYA ZPBufPtr
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stx hBuf
*--------------------------------------
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CS.RUN.LOOP ldy #S.PS.hStdIn
lda (pPS),y
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>SYSCALL FEOF
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bcs .90 IO error
tay
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bne .10 no char
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>SYSCALL GetChar
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bcs .9 IO error
cmp #$03 Ctrl-C
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beq .9 Abort....
cmp #$13 Ctrl-S
bne .10
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lda bPause
eor #$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
bne .2
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.1 inc ArgIndex
lda ArgIndex
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>SYSCALL ArgV
bcs .99 No more arg...the end!
>STYA ZPPtr1
lda (ZPPtr1)
cmp #'-'
beq .1 An option, skip...
>LDYA ZPPtr1
jsr CS.RUN.OPEN
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.90 bcs .9
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sta hFile
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.2 >PUSHWI 254 Leave room for CRLF
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>PUSHW ZPBufPtr
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lda hFile
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>SYSCALL FGetS
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bcs .7
jsr CS.RUN.PRINT
bcc CS.RUN.LOOP
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rts
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.7 cmp #MLI.E.EOF
bne .9
jsr CS.RUN.CLOSE
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jmp CS.RUN.LOOP
.99 lda #0 Exit with no Error
.9 sec
rts
*--------------------------------------
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CS.RUN.OPEN stz bPrintedBlankLine Reset this flag for the new file
>PUSHYA
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>PUSHBI O.RDONLY+O.TEXT
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>PUSHBI S.FI.T.TXT
>PUSHWZ Aux type
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>SYSCALL FOpen
rts
*--------------------------------------
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CS.RUN.PRINT inc LineNum
bne .10
inc LineNum+1
.10 lda bSuppressBlankLine
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bpl .2
lda (ZPBufPtr)
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bne .1 Empty line ?
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lda bPrintedBlankLine
bmi .8
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
.20 iny
lda (ZPBufPtr),y
beq .21
cmp #C.SPACE
bcs .20
lda #C.SPACE
sta (ZPBufPtr),y
bra .20
.21 >LDYA ZPBufPtr
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>SYSCALL PutS
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rts
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.3 stz ByteIndex
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.4 ldy ByteIndex
lda (ZPBufPtr),y
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beq .7
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cmp #C.SPACE
bcc .5
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>SYSCALL PutChar
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.99 bcs .9
bra .62
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.8 clc
rts
.5 tax
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>LDYA L.ASCII
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>STYA ZPPtr1
.6 dex
bmi .61
lda ZPPtr1
sec
adc (ZPPtr1)
sta ZPPtr1
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bcc .6
inc ZPPtr1+1
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bra .6
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.61 >PUSHW L.MSG.CTRLCHAR
>PUSHW ZPPtr1
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>PUSHBI 2
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>SYSCALL PrintF
bcs .9
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.62 inc ByteIndex
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bne .4
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.7 >PUSHW L.MSG.CRLF
>PUSHBI 0
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>SYSCALL PrintF
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.9 rts
*--------------------------------------
CS.RUN.PRINTNUM clc
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lda bLineNum
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
.8 rts
*--------------------------------------
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CS.QUIT lda hBuf
beq CS.RUN.CLOSE
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>SYSCALL FreeMem
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CS.RUN.CLOSE lda hFile
beq .8
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stz hFile
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>SYSCALL FClose
.8 clc
rts
*--------------------------------------
CS.DOEVENT sec
rts
*--------------------------------------
CS.END
*--------------------------------------
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OptionList .AS "ANSans"
OptionList.Cnt .EQ *-OptionList
OptionVars .DA #bPrintAll,#bLineNum,#bSuppressBlankLine,#bPrintAll,#bLineNum,#bSuppressBlankLine
*--------------------------------------
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MSG.USAGE .AS "Usage : CAT File1 [File2...]\r\n"
.AS " -A : Show All non printable caracters\r\n"
.AS " -N : Number all output lines\r\n"
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.AS " -S : Suppress repeated empty output lines"
MSG.CRLF .AZ "\r\n"
MSG.LINENUM .AZ "%5D:"
MSG.CTRLCHAR .AZ "[%S]"
*--------------------------------------
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ASCII >PSTR "NUL"
>PSTR "SOH"
>PSTR "STX"
>PSTR "ETX"
>PSTR "EOT"
>PSTR "ENQ"
>PSTR "ACK"
>PSTR "BEL"
>PSTR "BS"
>PSTR "TAB"
>PSTR "LF"
>PSTR "VT"
>PSTR "FF"
>PSTR "CR"
>PSTR "SO"
>PSTR "SI"
>PSTR "DLE"
>PSTR "DC1"
>PSTR "DC2"
>PSTR "DC3"
>PSTR "DC4"
>PSTR "NAK"
>PSTR "SYN"
>PSTR "ETB"
>PSTR "CAN"
>PSTR "EM"
>PSTR "SUB"
>PSTR "ESC"
>PSTR "FS"
>PSTR "GS"
>PSTR "RS"
>PSTR "US"
*--------------------------------------
.DUMMY
.OR 0
DS.START
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DS.END .ED
*--------------------------------------
MAN
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SAVE usr/src/bin/cat.s
ASM