mirror of
https://github.com/A2osX/A2osX.git
synced 2024-06-01 22:41:29 +00:00
247 lines
9.0 KiB
Plaintext
247 lines
9.0 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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bDummy .BS 1
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bIsTTY .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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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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.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 stz bIsTTY
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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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ldx #OptionList.Cnt-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 >PUSHW L.MSG.USAGE
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>PUSHBI 0
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>SYSCALL PrintF
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lda #E.SYN
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sec
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.9 rts
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.3 ldy OptionVars,x
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lda #$80
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sta 0,y
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bra .1
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.4 inc FileCount
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bra .1 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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tax
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lsr
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bcc CS.RUN.LOOP
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lda Nod.Table.hFD-2,x
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>SYSCALL GetMemPtr
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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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inc bIsTTY
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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 lda hFile
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>SYSCALL GetC
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bcs .7
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pha
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>SYSCALL PutChar
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pla
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cmp #C.CR
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bne CS.RUN.LOOP
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lda bIsTTY
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beq CS.RUN.LOOP
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lda #C.LF
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>SYSCALL PutChar
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bra CS.RUN.LOOP
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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 >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.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 "x"
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OptionList.Cnt .EQ *-OptionList
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OptionVars .DA #bDummy
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*--------------------------------------
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MSG.USAGE .AS "Usage : CAT File1 [File2...]"
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MSG.CRLF .AZ "\r\n"
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MSG.INIT .AZ "\e[?7h" Enable Line Wrap
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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/cat.s
|
||
ASM
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