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28 lines
231 B
ArmAsm

;
; Ullrich von Bassewitz, 25.10.2000
;
; CC65 runtime: Decrement the stackpointer by 3
;
.export decsp3
.importzp sp
.proc decsp3
lda sp
sec
sbc #3
sta sp
bcc @L1
rts
@L1: dec sp+1
rts
.endproc