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cc65/libsrc/atari/initcwd.s
Oliver Schmidt 76a5a72403 Adjusted current working directory initialization on Apple and Atari.
Moving __cwd from BSS into INITBSS does of course ;-) not only impact the CBM targets but all targets with disk I/O support.

Note: Code using `__cwd-1` may trigger an ld65 range error because __cwd may end up at the very begining of a segment. As far as I see this is an ld65 bug which I'm not try to fix - at least here.
2015-10-15 00:15:38 +02:00

34 lines
658 B
ArmAsm

;
; Stefan Haubenthal, 2008-04-29
;
.export initcwd
.import findfreeiocb
.import __cwd
.include "atari.inc"
.proc initcwd
lda #0
sta __cwd
jsr findfreeiocb
bne oserr
lda #GETCWD
sta ICCOM,x
lda #<__cwd
sta ICBLL,x
lda #>__cwd
sta ICBLH,x
jsr CIOV
bmi oserr
ldx #$FF ; ATEOL -> \0
: inx
lda __cwd,x
cmp #ATEOL
bne :-
lda #0
sta __cwd,x
oserr: rts
.endproc