mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 19:29:37 +00:00
28 lines
231 B
ArmAsm
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
|
|
|
|
|
|
|
|
|
|
|