A2osX/BIN/ASM.S.FIO.txt

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PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
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INC 1
AUTO 6
.LIST OFF
*---------------------------------------
FIO.Init ldy #S.PS.hARGS
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lda (pPS),y
>SYSCALL GetMemPtr.A
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bcs .99
>STYA ZPPtr1
lda (ZPPtr1)
tay
adc #3 len of ".T."
sta ASM.T.FILENAMELEN
adc #4 len of "6502"
sta ASM.T.FILENAME
tax
.2 lda (ZPPtr1),y
sta ASM.T.FILENAME,y
dey
bne .2
ldy #6
.3 lda ASM.T.DEFAULT,y
sta ASM.T.FILENAME,x
dex
dey
bpl .3
jmp FIO.LOAD.ASM.T
.99 rts
*---------------------------------------
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FIO.OpenFileA sta FIO.hFileName
>SYSCALL GetMemPtr.A
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>STYA ZPPtr1
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stz FIO.hFullPath
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ldy #1
lda (ZPPtr1),y
cmp #'/'
beq .1
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>PUSHB FIO.hFileName
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ldy #S.PS.hPREFIX
lda (pPs),y
>PUSHA
>SYSCALL PStrCat
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sta FIO.hFullPath
sta FIO.hFileName
>SYSCALL GetMemPtr.A
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>STYA ZPPtr1
.1 >PUSHW ZPPtr1
>LDYA L.MSG.SRC.FILE
>SYSCALL PrintF.YA
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ldy #SRC.COUNT
lda (pData),y
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cmp #SRC.IN.MAXDEPTH
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bne .10
lda #ERR.SRC.TOO.MANY.IN
sec
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bra FIO.OpenFileA.Exit
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.10 >PUSHWI 0
>PUSHBI 4
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>PUSHBI SYS.FOpen.R+SYS.FOpen.T
lda FIO.hFileName
>SYSCALL GetMemPtr.A
>PUSHYA
>SYSCALL FOpen
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bcs .99
pha
ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILES
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tay
pla
sta (pData),y
ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILETYPES
tay
txa
sta (pData),y
* cmp #$FA S-C/BAS?
* beq .8
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* cmp #$04 TXT ?
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* bne .98
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.8 ldy #SRC.COUNT
lda (pData),y
inc
sta (pData),y
clc
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bra FIO.OpenFileA.Exit
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.98 lda #ERR.SRC.INV.TYPE
.99 sec
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FIO.OpenFileA.Exit php
pha
lda FIO.hFullPath
beq .1
>SYSCALL FreeMem.A
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.1 pla
plp
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rts
*---------------------------------------
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FIO.ReadLine stz SRC.BufPtr
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ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILETYPES-1
tay
lda (pData),y
bmi .10
>PUSHWI 256
>PUSHWI UsrBuf256
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jsr FIO.ReadFromFile
bcs .19
lda #0 replace ending $0D with $00
sta UsrBuf256,y
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.19 rts
.10 >PUSHWI 3
>PUSHW L.SRC.Buffer
jsr FIO.ReadFromFile
bcs .9
lda SRC.Buffer+1
sta SRC.LINENUM
lda SRC.Buffer+2
sta SRC.LINENUM+1
lda SRC.Buffer LEN
sec
sbc #3
bcc .9 LEN should be at least 3
tay
lda #0
>PUSHYA
>PUSHW L.SRC.BUFFER
jsr FIO.ReadFromFile
ldy #0
ldx #0
.1 lda SRC.Buffer,y
bmi .2
sta UsrBuf256,x
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beq .8 Ending 00
inx
beq .99
iny
bne .1
bra .99
.2 cmp #$C0 REPEAT char?
bne .5
iny
beq .99
lda SRC.Buffer,y
iny
beq .99
.3 pha
lda SRC.Buffer,y
sta UsrBuf256,x
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pla
inx
beq .99
dec
bne .3
iny
bne .1
bra .99
.5 and #$3F Compute blank count
.6 pha
lda #$20
sta UsrBuf256,x
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pla
inx
beq .99
dec
bne .6
iny
bne .1
bra .99
.8 clc
.9 rts
.99 lda #ERR.LINE.TOO.LONG
sec
rts
*--------------------------------------
FIO.ReadFromFile ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILES-1
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tay
lda (pData),y
>PUSHA
>SYSCALL FRead
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bcs .9
tax $100 byte transfered ?
beq .9
lda #ERR.LINE.TOO.LONG
sec
.9 rts
*---------------------------------------
FIO.FileClose ldy #SRC.COUNT
lda (pData),y
beq .8
clc
adc #SRC.hFILES-1
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tay
lda (pData),y
>SYSCALL FClose.A
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ldy #SRC.COUNT
lda (pData),y
dec
sta (pData),y
.8 clc
rts
*---------------------------------------
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FIO.LOAD.ASM.T ldy #ASM.T.hMem
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lda (pData),y
beq .1
>SYSCALL FreeMem.A
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ldy #ASM.T.hMem
lda #0
sta (pData),y
.1 >PUSHW L.ASM.T.FILENAME
>LDYA L.MSG.T.FILE
>SYSCALL PrintF.YA
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>PUSHWI 0 Aux type
>PUSHBI 6 S.FILEINFO.TYPE.BIN
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>PUSHBI SYS.FOpen.R
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>PUSHW L.ASM.T.FILENAME
>SYSCALL LoadFile
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bcs .9
txa
ldy #ASM.T.hMem
sta (pData),y
.9 rts
*---------------------------------------
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FIO.EmitByte clc
rts
*---------------------------------------
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MAN
SAVE /A2OSX.SRC/BIN/ASM.S.FIO
LOAD /A2OSX.SRC/BIN/ASM.S
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ASM