loading files in assembly

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VDC 8x2 Administrator VDC 8x2 Living life Posts: 348	loading files in assembly May 29, 2016 21:18:56 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by VDC 8x2 on May 29, 2016 21:18:56 GMT Is it possible to load files into bank 1 ram using kernal routines on the 128. I keep hitting a file not found error. argh! having 1 for data bank and 0 for name bank via setbank routine. are my numbers wrong?!

buzbard
PET User

Posts: 45

loading files in assembly Jun 23, 2016 15:43:51 GMT

Quote

Post by buzbard on Jun 23, 2016 15:43:51 GMT

This works for me:

lda #$01     ; file#
ldx #$08     ; device#
ldy #$01     ; secondary address (0=relocatable, 1=absolute)
jsr $ffba    ; set logical file parameters

lda #$xx     ; length of filename
ldx #<fname
ldy #>fname
jsr $ffbd    ; set filename

lda #$01     ; data in bank 1
ldx #$00     ; filename in bank 0
jsr $ff68    ; set bank for load

lda #$00     ; 0=load, <>0=verify
	     ; if secondary address=0 
	     ;   ldx #<address
	     ;   ldy #>address

jsr $ffd5    ; load

...

fname byte"filename", $00

Last Edit: Jun 23, 2016 15:46:28 GMT by buzbard

Ray...
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Commodore 128

loading files in assembly

Post by VDC 8x2 on May 29, 2016 21:18:56 GMT

Post by buzbard on Jun 23, 2016 15:43:51 GMT

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