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cc65/libsrc/apple2/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

42 lines
872 B
ArmAsm

;
; Oliver Schmidt, 18.04.2005
;
.export initcwd
.import __cwd
.include "zeropage.inc"
.include "mli.inc"
initcwd:
; Set static prefix buffer
lda #<__cwd
ldx #>__cwd
sta mliparam + MLI::PREFIX::PATHNAME
stx mliparam + MLI::PREFIX::PATHNAME+1
; Get current working directory
lda #GET_PREFIX_CALL
ldx #PREFIX_COUNT
jsr callmli
; Check for null prefix
ldx __cwd
beq done
; Remove length byte and trailing slash
dex
stx tmp1
ldx #$00
: lda __cwd + 1,x
sta __cwd,x
inx
cpx tmp1
bcc :-
; Add terminating zero
lda #$00
sta __cwd,x
done: rts