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cc65/libsrc/cbm/initcwd.s

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;
; Stefan Haubenthal, 2005-06-08
;
; CBM _curunit to _cwd
;
.export initcwd
.import __curunit, __cwd
.import pusha0, tosudiva0
.importzp sreg, ptr1
.macpack generic
.segment "INIT"
.proc initcwd
lda __curunit
jsr pusha0
lda #10
jsr tosudiva0
ldx #0
lda sreg
beq :+ ; >=10
add #'0'
sta __cwd
inx
: lda ptr1 ; rem
add #'0'
sta __cwd,x
lda #0
sta __cwd+1,x
rts
.endproc