A2osX/BIN/ASM.S.FIO.txt

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*---------------------------------------
FIO.Init ldy #S.PS.hCMDLINE
lda (pPS),y
>SYSCALL GetMemPtrA
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
*---------------------------------------
FIO.OpenFileA sta FIO.hFileName
>SYSCALL GetMemPtrA
>STYA ZPPtr1
stz FIO.hFullPath
ldy #1
lda (ZPPtr1),y
cmp #'/'
beq .1
>PUSHB FIO.hFileName
ldy #S.PS.hPREFIX
lda (pPs),y
>PUSHA
>SYSCALL PStrCat
sta FIO.hFullPath
sta FIO.hFileName
>SYSCALL GetMemPtrA
>STYA ZPPtr1
.1 >PUSHW ZPPtr1
>LDYA L.MSG.SRC.FILE
>SYSCALL CPrintFYA
ldy #SRC.COUNT
lda (pData),y
cmp #SRC.IN.MAXDEPTH
bne .10
lda #ERR.SRC.TOO.MANY.IN
sec
bra FIO.OpenFileA.Exit
.10 >PUSHWI 0
>PUSHBI 4
>PUSHBI SYS.FOPEN.R+SYS.FOPEN.T
lda FIO.hFileName
>SYSCALL GetMemPtrA
>PUSHYA
>SYSCALL MLIOpenYA
bcs .99
pha
ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILES
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
* cmp #$04 TXT ?
* bne .98
.8 ldy #SRC.COUNT
lda (pData),y
inc
sta (pData),y
clc
bra FIO.OpenFileA.Exit
.98 lda #ERR.SRC.INV.TYPE
.99 sec
FIO.OpenFileA.Exit php
pha
lda FIO.hFullPath
beq .1
>SYSCALL FreeMemA
.1 pla
plp
rts
*---------------------------------------
FIO.ReadLine stz SRC.BufPtr
ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hFILETYPES-1
tay
lda (pData),y
bmi .10
>PUSHWI 256
>PUSHWI UsrBuf256
jsr FIO.ReadFromFile
bcs .19
lda #0 replace ending $0D with $00
sta UsrBuf256,y
.19 rts
.10 >PUSHWI 3
>PUSHW L.SRC.Buffer
jsr FIO.ReadFromFile
bcs .9
lda SRC.Buffer+1
sta SRC.LINENUM
lda SRC.Buffer+2
sta SRC.LINENUM+1
lda SRC.Buffer LEN
sec
sbc #3
bcc .9 LEN should be at least 3
tay
lda #0
>PUSHYA
>PUSHW L.SRC.BUFFER
jsr FIO.ReadFromFile
ldy #0
ldx #0
.1 lda SRC.Buffer,y
bmi .2
sta UsrBuf256,x
beq .8 Ending 00
inx
beq .99
iny
bne .1
bra .99
.2 cmp #$C0 REPEAT char?
bne .5
iny
beq .99
lda SRC.Buffer,y
iny
beq .99
.3 pha
lda SRC.Buffer,y
sta UsrBuf256,x
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
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.hREFNUMS-1
tay
lda (pData),y
>PUSHA
>SYSCALL MLIRead
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.hREFNUMS-1
tay
lda (pData),y
>SYSCALL MLICloseA
ldy #SRC.COUNT
lda (pData),y
clc
adc #SRC.hBUFFERS-1
tay
lda (pData),y
>SYSCALL FreeMemA
ldy #SRC.COUNT
lda (pData),y
dec
sta (pData),y
.8 clc
rts
*---------------------------------------
FIO.LOAD.ASM.T ldy #ASM.T.hMem
lda (pData),y
beq .1
>SYSCALL FreeMemA
ldy #ASM.T.hMem
lda #0
sta (pData),y
.1 >PUSHW L.ASM.T.FILENAME
>LDYA L.MSG.T.FILE
>SYSCALL CPrintFYA
>PUSHWI 0 Aux type
>PUSHBI 6 S.FILEINFO.TYPE.BIN
>PUSHBI SYS.FOPEN.R
>PUSHW L.ASM.T.FILENAME
>SYSCALL LoadFile
bcs .9
txa
ldy #ASM.T.hMem
sta (pData),y
.9 rts
*---------------------------------------
FIO.EmitByte clc
rts
*---------------------------------------
MAN
SAVE BIN/ASM.S.FIO
LOAD BIN/ASM.S
ASM