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cc65/libsrc/runtime/decsp2.s
cuz dd0ddc94e3 More module splits
git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81
2000-10-25 19:53:22 +00:00

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ArmAsm

;
; Ullrich von Bassewitz, 25.10.2000
;
; CC65 runtime: Decrement the stackpointer by 2
;
.export decsp2
.importzp sp
.proc decsp2
ldy sp
beq @L1
dey
beq @L2
dey
sty sp
rts
@L1: dey
@L2: dey
sty sp
dec sp+1
rts
.endproc