mirror of https://github.com/A2osX/A2osX.git
223 lines
4.5 KiB
Plaintext
223 lines
4.5 KiB
Plaintext
NEW
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PREFIX
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AUTO 4,1 Enable MASM3 auto line num
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.LIST OFF
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.OP 65C02 Target CPU, must match CPU level in header
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.OR $2000 usualy $2000, but any value > $100 allowed
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.TF BIN/CSH
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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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.INB USR/SRC/BIN/CSH.E
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*--------------------------------------
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* Zero Page Segment, up to 32 bytes
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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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ZPPtr2 .BS 2
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ZPPtr3 .BS 2
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ZPFileBuf .BS 2
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ZPFileBufPtr .BS 2
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ZPFnDefPtr .BS 2
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ZPCSHSymbols .BS 2
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ZPCSHConst .BS 2
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ZPCSHData .BS 2
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ZPCSHValue .BS 2
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ZPCSHStack .BS 2
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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 #0 S.PS.F.EVENT
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.DA #0
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.DA CS.END-CS.START Code Size (without Constants)
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.DA DS.END-DS.START Data SegmentSize
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.DA #16 Stack Size
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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.GREETINGS .DA MSG.GREETINGS
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L.MSG.ECHOCRLF .DA MSG.ECHOCRLF
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L.MSG.ERR .DA MSG.ERR
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.INB USR/SRC/BIN/CSH.R
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.DA 0
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*--------------------------------------
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* Called once at process creation
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* Put code for loading LIB here
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*--------------------------------------
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CS.INIT clc
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rts
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*--------------------------------------
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* Called until exit with CS
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* if RUN exits with CC, RN entered again
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*--------------------------------------
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CS.RUN >PUSHWI K.VER
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>PUSHBI 2
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>LDYA L.MSG.GREETINGS
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>SYSCALL printf
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bcs .99
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jsr CSH.Init
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bcs .99
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ldy #S.PS.ARGC
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lda (pPS),y
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beq .90 no arg, usage
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>PUSHWI 0 Aux type
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>PUSHBI S.FI.T.TXT
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>PUSHBI O.RDONLY
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lda #1
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>SYSCALL ArgV
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>SYSCALL LoadTxtFile
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bcs .99
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txa
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>STA.G hFileBuf
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>SYSCALL GetMemPtr
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>STYA ZPFileBuf
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>STYA ZPFileBufPtr
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.1 >SLEEP
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jsr CSH.Run
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bcc .1
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cmp #MLI.E.EOF
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beq .8
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pha
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jsr PrintErrMsg
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pla
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sec
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rts
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.8 lda #0
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sec
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rts
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.90 lda #E.SYN Exit Code = Succes
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sec QUIT Process
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.99 rts
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*--------------------------------------
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* Called if option S.PS.F.EVENT enabled in Header
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* Timer Event : every 10th seconds
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*--------------------------------------
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CS.DOEVENT sec
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rts
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*--------------------------------------
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* Called once, when RUN exited with CS
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* Put code for unloading LIB here
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*--------------------------------------
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CS.QUIT jsr CSH.Quit
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clc
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rts
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*--------------------------------------
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PrintErrMsg >LDYA ZPFileBuf
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>STYA ZPPtr1
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lda #1
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sta ZPPtr3
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stz ZPPtr3+1
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.1 >LDYA ZPPtr1
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>STYA ZPPtr2 Save actual line start
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inc ZPPtr3
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bne .2
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inc ZPPtr3+1
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.2 lda (ZPPtr1)
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beq .6 EoF
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inc ZPPtr1
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bne .3
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inc ZPPtr1+1
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.3 cmp #C.CR
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bne .2 Scan until EoL
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ldx ZPPtr1
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cpx ZPFileBufPtr
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lda ZPPtr1+1
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sbc ZPFileBufPtr+1
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bcc .1 not this line....
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ldy #$ff
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.5 iny
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lda (ZPPtr2),y
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beq .6
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cmp #C.CR
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beq .6
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phy
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>PUSHA
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ldy #S.PS.hStdErr
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lda (pPS),y
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>SYSCALL fputc
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ply
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bra .5
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.6 phy
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>PUSHBI 0
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>PUSHW L.MSG.ECHOCRLF
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ldy #S.PS.hStdErr
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lda (pPS),y
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>SYSCALL fprintf
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ply
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beq .8
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.7 phy
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>PUSHBI '-'
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ldy #S.PS.hStdErr
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lda (pPS),y
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>SYSCALL fputc
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ply
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dey
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bne .7
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.8 >PUSHW ZPPtr3
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>PUSHBI 2
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>PUSHW L.MSG.ERR
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ldy #S.PS.hStdErr
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lda (pPS),y
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>SYSCALL fprintf
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rts
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*--------------------------------------
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.INB USR/SRC/BIN/CSH.S.CORE
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*--------------------------------------
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CS.END
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*--------------------------------------
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* Initialized DATA
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*--------------------------------------
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MSG.Greetings .AZ "\r\nCSH-Shell %d.%d\r\n\r\n"
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MSG.ECHOCRLF .AZ "\r\n"
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MSG.ERR .AZ "^\r\nLine #%D:"
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.INB USR/SRC/BIN/CSH.I
|
||
*--------------------------------------
|
||
.DUMMY
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.OR 0
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DS.START .INB USR/SRC/BIN/CSH.D
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||
DS.END
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.ED
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*--------------------------------------
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MAN
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SAVE USR/SRC/BIN/CSH.S
|
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ASM
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