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Integrated latest enhancements contributed by Kajtar Zsolt:
- Use cc65 C library _filetype for writing instead of fixed 'p'. - Support for fake O_TRUNC through SCRATCH.
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oliverschmidt
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@ -31,12 +31,12 @@
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; Author: Kajtar Zsolt <soci@c64.rulez.org>
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;
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;---------------------------------------------------------------------
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.define F_IDE64 0 ; support IDE64, 100 byte only
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.define F_IDE64 0 ; support IDE64, not on C128
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.constructor init_pfs
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.destructor done_pfs
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.importzp ptr1, ptr2, ptr3, sp
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.import __curunit, popax, addysp, subysp
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.import __curunit, __filetype, popax, addysp, subysp
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.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
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.if F_IDE64
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.export ide64_rwprepare, ide64_rwfinish
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@ -73,7 +73,8 @@ flags: .res 10
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.data
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illchr: .byte $3A, $2A, $3F, $3D ;illegal chars
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pw: .byte $2C, $50, $2C, $57 ;,p,w
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pw: .byte $2C
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filet: .byte $50, $2C, $57 ;,p,w
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;---------------------------------------------------------------------
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.segment "INIT"
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@ -100,11 +101,12 @@ _pfs_open:
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ldy #F_MAXLEN+8
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jsr subysp ;allocate name
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ldy #255
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sty ptr3
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sty ptr1
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@L10: iny
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cpy #F_MAXLEN
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bcs error3 ;too long...
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ldx #4
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ldx #4 ;4+1 (comma)
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@L12: cmp illchr,x
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beq error3 ;illegal char?
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dex
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@ -146,6 +148,8 @@ nopath: lda #$3A
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bne @L16
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lsr ptr2
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bcs ro ;read only
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lda __filetype
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sta filet ;set filetype
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ldx #252
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@L20: lda pw-252,x
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sta (sp),y ;write
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@ -173,7 +177,7 @@ next: inc ptr2 ;next file number
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inx
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stx ptr2+1
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nextsa: inc ptr2+1 ;next channel
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lda ptr2 ;file number
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retr: lda ptr2 ;file number
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ldx __curunit
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ldy ptr2+1 ;secondary address
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jsr SETLFS
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@ -201,10 +205,10 @@ nextsa: inc ptr2+1 ;next channel
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lda ptr2
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jsr CLOSE ;close
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pla
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ldx ptr1
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cmp #$37 ;no channel?
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bne error
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lda ptr1
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cmp #$30
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bne nnoc
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cpx #$30
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bne error ;not no channel
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lda ptr2+1
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cmp #14
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@ -227,6 +231,37 @@ error: lda #$FF
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tax ;failed
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bne ret
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nnoc: inc ptr3
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bne error ;no retry
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cmp #$36
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bne error ;no exists
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cpx #$33
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bne error
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ldx cmdc
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jsr CHKOUT
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bcs error
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lda FNL
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sec
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sbc #5
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tax
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lda #$53 ;scratch
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jsr CHROUT
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ldy #1
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@L4: lda (FN),y
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iny
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jsr CHROUT
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dex
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bne @L4
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lda #$3D
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jsr CHROUT
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iny
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lda (FN),y
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jsr CHROUT
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lda #$0d
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jsr CHROUT
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jsr CLRCHN
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jmp retr
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.proc _pfs_read
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jsr pfs_rwcommon ; pop params, check handle
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beq error2 ; not open
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@ -36,7 +36,7 @@
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.constructor init_pfs
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.destructor done_pfs
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.importzp ptr1, ptr2, ptr3, sp
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.import __curunit, popax, addysp, subysp
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.import __curunit, __filetype, popax, addysp, subysp
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.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
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.if F_IDE64
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.export ide64_rwprepare, ide64_rwfinish
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@ -73,7 +73,8 @@ flags: .res 10
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.data
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illchr: .byte $3A, $2A, $3F, $3D ;illegal chars
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pw: .byte $2C, $50, $2C, $57 ;,p,w
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pw: .byte $2C
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filet: .byte $50, $2C, $57 ;,p,w
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;---------------------------------------------------------------------
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.segment "INIT"
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@ -100,11 +101,12 @@ _pfs_open:
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ldy #F_MAXLEN+8
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jsr subysp ;allocate name
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ldy #255
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sty ptr3
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sty ptr1
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@L10: iny
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cpy #F_MAXLEN
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bcs error3 ;too long...
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ldx #4
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ldx #4 ;4+1 (comma)
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@L12: cmp illchr,x
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beq error3 ;illegal char?
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dex
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@ -146,6 +148,8 @@ nopath: lda #$3A
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bne @L16
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lsr ptr2
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bcs ro ;read only
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lda __filetype
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sta filet ;set filetype
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ldx #252
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@L20: lda pw-252,x
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sta (sp),y ;write
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@ -173,7 +177,7 @@ next: inc ptr2 ;next file number
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inx
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stx ptr2+1
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nextsa: inc ptr2+1 ;next channel
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lda ptr2 ;file number
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retr: lda ptr2 ;file number
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ldx __curunit
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ldy ptr2+1 ;secondary address
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jsr SETLFS
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@ -201,10 +205,10 @@ nextsa: inc ptr2+1 ;next channel
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lda ptr2
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jsr CLOSE ;close
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pla
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ldx ptr1
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cmp #$37 ;no channel?
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bne error
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lda ptr1
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cmp #$30
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bne nnoc
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cpx #$30
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bne error ;not no channel
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lda ptr2+1
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cmp #14
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@ -227,6 +231,37 @@ error: lda #$FF
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tax ;failed
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bne ret
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nnoc: inc ptr3
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bne error ;no retry
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cmp #$36
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bne error ;no exists
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cpx #$33
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bne error
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ldx cmdc
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jsr CHKOUT
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bcs error
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lda FNL
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sec
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sbc #5
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tax
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lda #$53 ;scratch
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jsr CHROUT
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ldy #1
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@L4: lda (FN),y
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iny
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jsr CHROUT
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dex
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bne @L4
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lda #$3D
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jsr CHROUT
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iny
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lda (FN),y
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jsr CHROUT
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lda #$0d
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jsr CHROUT
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jsr CLRCHN
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jmp retr
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.proc _pfs_read
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jsr pfs_rwcommon ; pop params, check handle
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beq error2 ; not open
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