mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-25 05:32:20 +00:00
518 lines
8.5 KiB
Plaintext
518 lines
8.5 KiB
Plaintext
NEW
|
||
AUTO 3,1
|
||
.LIST OFF
|
||
.OP 65C02
|
||
.OR $2000
|
||
.TF bin/bf
|
||
*--------------------------------------
|
||
.INB inc/macros.i
|
||
.INB inc/a2osx.i
|
||
.INB inc/mli.i
|
||
.INB inc/mli.e.i
|
||
*--------------------------------------
|
||
BF.DATASIZE .EQ 1024
|
||
*--------------------------------------
|
||
* Zero Page Segment, up to 32 bytes
|
||
*--------------------------------------
|
||
.DUMMY
|
||
.OR ZPBIN
|
||
ZS.START
|
||
ZPCodePtr .BS 2
|
||
ZPDataPtr .BS 2
|
||
|
||
ZPPtr1 .BS 2
|
||
ZPPtr2 .BS 2
|
||
ZPPtr3 .BS 2
|
||
|
||
ArgIndex .BS 1
|
||
hFileBuf .BS 1
|
||
hDataBuf .BS 1
|
||
bDebug .BS 1
|
||
bTrace .BS 1
|
||
StackCnt .BS 1
|
||
ZPCnt .BS 1
|
||
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
|
||
.DA #0 S.PS.F.EVENT
|
||
.DA #0
|
||
.DA CS.END-CS.START Code Size (without Constants)
|
||
.DA DS.END-DS.START Data SegmentSize
|
||
.DA #64 Stack Size
|
||
.DA #ZS.END-ZS.START Zero Page Size
|
||
.DA 0
|
||
*--------------------------------------
|
||
* Relocation Table
|
||
*--------------------------------------
|
||
.1 .DA CS.INIT
|
||
.DA CS.RUN
|
||
.DA CS.DOEVENT
|
||
.DA CS.QUIT
|
||
L.MSG.GREETINGS .DA MSG.GREETINGS
|
||
L.MSG.USAGE .DA MSG.USAGE
|
||
L.MSG.ECHOCRLF .DA MSG.ECHOCRLF
|
||
L.MSG.DEBUG .DA MSG.DEBUG
|
||
L.MSG.ERR .DA MSG.ERR
|
||
J.BF.KW .DA BF.KW.INCPTR
|
||
.DA BF.KW.DECPTR
|
||
.DA BF.KW.INCDATA
|
||
.DA BF.KW.DECDATA
|
||
.DA BF.KW.PUTCHAR
|
||
.DA BF.KW.GETCHAR
|
||
.DA BF.KW.WHILE
|
||
.DA BF.KW.END
|
||
.DA 0
|
||
*--------------------------------------
|
||
* Called once at process creation
|
||
* Put code for loading LIB here
|
||
*--------------------------------------
|
||
CS.INIT clc
|
||
CS.INIT.RTS rts
|
||
*--------------------------------------
|
||
* Called until exit with CS
|
||
* if RUN exits with CC, RN entered again
|
||
*--------------------------------------
|
||
CS.RUN >PUSHW L.MSG.GREETINGS
|
||
>PUSHW A2osX.KVER
|
||
>PUSHBI 2
|
||
>SYSCALL PrintF
|
||
bcs CS.INIT.RTS
|
||
|
||
jsr CS.RUN.ARGS
|
||
bcs CS.INIT.RTS
|
||
|
||
jsr BF.Init
|
||
bcs CS.INIT.RTS
|
||
|
||
.1 >SLEEP
|
||
|
||
>LDA.G bDebug
|
||
bpl .2
|
||
|
||
jsr PrintDebugMsg
|
||
.2 >LDA.G bTrace
|
||
bpl .3
|
||
|
||
jsr PrintTraceMsg
|
||
|
||
.3 jsr BF.Run
|
||
bcc .1
|
||
|
||
cmp #MLI.E.EOF
|
||
beq .8
|
||
|
||
pha
|
||
jsr PrintErrMsg
|
||
pla
|
||
sec
|
||
rts
|
||
|
||
.8 lda #0 Exit Code = Success
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN.ARGS inc ArgIndex
|
||
|
||
lda ArgIndex
|
||
>SYSCALL ArgV
|
||
bcs .7
|
||
|
||
>STYA ZPPtr1
|
||
lda (ZPPtr1)
|
||
cmp #'-'
|
||
bne .4
|
||
|
||
ldy #1
|
||
lda (ZPPtr1),y
|
||
|
||
ldx #OptionVars-OptionList-1
|
||
|
||
.1 cmp OptionList,x
|
||
beq .2
|
||
|
||
dex
|
||
bpl .1
|
||
|
||
bra .90
|
||
|
||
.2 ldy OptionVars,x
|
||
lda #$ff
|
||
sta $0,y
|
||
bra CS.RUN.ARGS
|
||
|
||
.4 lda hFileBuf
|
||
bne .90
|
||
|
||
>LDYA ZPPtr1
|
||
jsr CS.RUN.LoadFile
|
||
bcs .9
|
||
|
||
>STYA ZPCodePtr
|
||
|
||
stx hFileBuf
|
||
bra CS.RUN.ARGS
|
||
|
||
.7 lda hFileBuf
|
||
beq .90
|
||
|
||
clc
|
||
.9 rts
|
||
|
||
.90 >LDYA L.MSG.USAGE
|
||
>SYSCALL PutS
|
||
|
||
lda #E.SYN
|
||
sec QUIT Process
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN.LoadFile >SYSCALL LoadTxtFile
|
||
bcs .9
|
||
|
||
phx
|
||
txa
|
||
>SYSCALL GetMemPtr
|
||
plx
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
BF.Init >LDYAI BF.DATASIZE
|
||
>SYSCALL GetMem
|
||
bcs .9
|
||
|
||
>STYA ZPDataPtr
|
||
stx hDataBuf
|
||
|
||
>STYA ZPPtr1
|
||
|
||
ldx /BF.DATASIZE
|
||
lda #0
|
||
tay
|
||
|
||
.1 sta (ZPPtr1),y
|
||
iny
|
||
bne .1
|
||
|
||
inc ZPPtr1+1
|
||
dex
|
||
bne .1
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
BF.Run jsr BF.GetCodeByte
|
||
beq .8
|
||
|
||
ldx #BF.KW.Cnt-1
|
||
|
||
.2 cmp BF.KW,x
|
||
bne .3
|
||
|
||
txa
|
||
asl
|
||
tax
|
||
jmp (J.BF.KW,x)
|
||
|
||
.3 dex
|
||
bpl .2
|
||
|
||
lda #E.CSYN
|
||
sec
|
||
rts
|
||
|
||
.8 lda #MLI.E.EOF
|
||
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
BF.KW.INCPTR inc ZPDataPtr
|
||
bne .8
|
||
|
||
inc ZPDataPtr+1
|
||
|
||
.8 clc
|
||
jmp BF.NextCodeByte
|
||
*--------------------------------------
|
||
BF.KW.DECPTR lda ZPDataPtr
|
||
bne .8
|
||
|
||
dec ZPDataPtr+1
|
||
|
||
.8 dec ZPDataPtr
|
||
|
||
clc
|
||
jmp BF.NextCodeByte
|
||
*--------------------------------------
|
||
BF.KW.INCDATA lda (ZPDataPtr)
|
||
inc
|
||
sta (ZPDataPtr)
|
||
clc
|
||
jmp BF.NextCodeByte
|
||
*--------------------------------------
|
||
BF.KW.DECDATA lda (ZPDataPtr)
|
||
dec
|
||
sta (ZPDataPtr)
|
||
clc
|
||
jmp BF.NextCodeByte
|
||
*--------------------------------------
|
||
BF.KW.PUTCHAR lda (ZPDataPtr)
|
||
>SYSCALL PutChar
|
||
bcs .9
|
||
|
||
jmp BF.NextCodeByte
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
BF.KW.GETCHAR >SYSCALL GetChar
|
||
bcs .9
|
||
|
||
sta (ZPDataPtr)
|
||
|
||
jmp BF.NextCodeByte
|
||
|
||
.9 rts
|
||
*--------------------------------------
|
||
BF.KW.WHILE lda (ZPDataPtr)
|
||
bne .8
|
||
|
||
lda #1
|
||
sta ZPCnt
|
||
|
||
.1 jsr BF.NextCodeByte
|
||
|
||
jsr BF.GetCodeByte
|
||
beq .9
|
||
|
||
cmp #'['
|
||
bne .2
|
||
|
||
inc ZPCnt
|
||
bra .1
|
||
|
||
.2 cmp #']'
|
||
bne .1
|
||
|
||
dec ZPCnt
|
||
bne .1
|
||
|
||
clc
|
||
jmp BF.NextCodeByte
|
||
|
||
.8 >PUSHW ZPCodePtr
|
||
inc StackCnt
|
||
clc
|
||
jmp BF.NextCodeByte
|
||
|
||
.9 lda #E.ESYN
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
BF.KW.END lda StackCnt
|
||
beq .9
|
||
|
||
>PULLW ZPCodePtr
|
||
dec StackCnt
|
||
clc
|
||
rts
|
||
|
||
.9 lda #E.STACKERROR
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
BF.GetCodeByte lda (ZPCodePtr)
|
||
beq .8
|
||
|
||
cmp #C.SPACE
|
||
beq .7
|
||
|
||
cmp #C.CR
|
||
beq .7
|
||
|
||
cmp #C.LF
|
||
beq .7
|
||
|
||
cmp #'#'
|
||
bne .8
|
||
|
||
.2 jsr BF.NextCodeByte
|
||
|
||
lda (ZPCodePtr)
|
||
beq .8
|
||
|
||
cmp #C.CR
|
||
bne .2
|
||
|
||
.7 jsr BF.NextCodeByte
|
||
|
||
bra BF.GetCodeByte
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
BF.NextCodeByte inc ZPCodePtr
|
||
bne .8
|
||
|
||
inc ZPCodePtr+1
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
CS.DOEVENT sec
|
||
rts
|
||
*--------------------------------------
|
||
CS.QUIT lda hFileBuf
|
||
beq .1
|
||
|
||
>SYSCALL FreeMem
|
||
|
||
.1 lda hDataBuf
|
||
beq .8
|
||
|
||
>SYSCALL FreeMem
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
PrintDebugMsg >LDYA pStack
|
||
>STYA ZPPtr2
|
||
>PUSHW L.MSG.DEBUG
|
||
|
||
>PUSHW ZPCodePtr
|
||
>PUSHW ZPDataPtr
|
||
>PUSHB (ZPDataPtr)
|
||
>PUSHW ZPPtr2
|
||
|
||
>PUSHBI 7
|
||
>SYSCALL PrintF
|
||
|
||
rts
|
||
*--------------------------------------
|
||
PrintErrMsg >LDA.G bTrace
|
||
bmi .5
|
||
|
||
jsr PrintTraceMsg
|
||
|
||
.5 lda ZPPtr3
|
||
cmp ZPCodePtr
|
||
bne .6
|
||
|
||
lda ZPPtr3+1
|
||
cmp ZPCodePtr+1
|
||
beq .8
|
||
|
||
.6 ldy #S.PS.hStdErr
|
||
lda (pPS),y
|
||
>PUSHA
|
||
>PUSHBI '-'
|
||
>SYSCALL FPutC
|
||
inc ZPPtr3
|
||
bne .5
|
||
|
||
inc ZPPtr3+1
|
||
bra .5
|
||
|
||
.8 ldy #S.PS.hStdErr
|
||
lda (pPS),y
|
||
>PUSHA
|
||
>PUSHW L.MSG.ERR
|
||
>PUSHW ZPPtr2 Line counter
|
||
>PUSHBI 2
|
||
>SYSCALL FPrintF
|
||
|
||
rts
|
||
*--------------------------------------
|
||
PrintTraceMsg lda hFileBuf
|
||
|
||
.12 >SYSCALL GetMemPtr
|
||
>STYA ZPPtr1
|
||
|
||
stz ZPPtr2
|
||
stz ZPPtr2+1 Line counter
|
||
|
||
.1 inc ZPPtr2
|
||
bne .2
|
||
|
||
inc ZPPtr2+1
|
||
|
||
.2 >LDYA ZPPtr1
|
||
>STYA ZPPtr3 save line start
|
||
|
||
.20 lda (ZPPtr1)
|
||
beq .4 EoF
|
||
|
||
inc ZPPtr1
|
||
bne .3
|
||
|
||
inc ZPPtr1+1
|
||
.3 cmp #C.CR
|
||
bne .20 Scan until EoL
|
||
|
||
ldx ZPPtr1
|
||
cpx ZPCodePtr
|
||
lda ZPPtr1+1
|
||
sbc ZPCodePtr+1
|
||
bcc .1 not this line....
|
||
|
||
.4 ldy #S.PS.hStdErr
|
||
lda (pPS),y
|
||
>PUSHA
|
||
>PUSHBI '>'
|
||
>SYSCALL FPutC
|
||
|
||
ldy #$ff
|
||
|
||
.7 iny
|
||
lda (ZPPtr3),y
|
||
beq .8
|
||
|
||
cmp #C.CR
|
||
beq .8
|
||
|
||
phy
|
||
pha
|
||
ldy #S.PS.hStdErr
|
||
lda (pPS),y
|
||
>PUSHA
|
||
pla
|
||
>PUSHA
|
||
>SYSCALL FPutC
|
||
ply
|
||
bra .7
|
||
|
||
.8 ldy #S.PS.hStdErr
|
||
lda (pPS),y
|
||
>PUSHA
|
||
|
||
>PUSHW L.MSG.ECHOCRLF
|
||
>PUSHBI 0
|
||
>SYSCALL FPrintF
|
||
|
||
rts
|
||
*--------------------------------------
|
||
CS.END
|
||
*--------------------------------------
|
||
* Initialized DATA
|
||
*--------------------------------------
|
||
MSG.GREETINGS .CZ "\r\nBrainFuck-Shell %d.%d\r\n\r\n"
|
||
MSG.USAGE .CS "Usage : BF <option> file\r\n"
|
||
.CS " -D : Debug Mode\r\n"
|
||
.CS " -T : Trace On"
|
||
MSG.ECHOCRLF .CZ "\r\n"
|
||
MSG.DEBUG .CZ "pCode=%H, pData=%H(%h), pStack=%H\r\n"
|
||
MSG.ERR .CZ "-^\r\nLine #%D:"
|
||
*--------------------------------------
|
||
OptionList .AS "DdTt"
|
||
OptionVars .DA #bDebug,#bDebug,#bTrace,#bTrace
|
||
*--------------------------------------
|
||
BF.KW .AS "><+-.,[]"
|
||
BF.KW.Cnt .EQ *-BF.KW
|
||
*--------------------------------------
|
||
.DUMMY
|
||
.OR 0
|
||
DS.START
|
||
DS.END .ED
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE usr/src/bin/bf.s
|
||
ASM
|