mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 19:29:37 +00:00
35 lines
375 B
ArmAsm
35 lines
375 B
ArmAsm
|
;
|
||
|
; Ullrich von Bassewitz, 08.10.1998
|
||
|
;
|
||
|
; CC65 runtime: += operator for longs on the stack
|
||
|
;
|
||
|
|
||
|
.export laddeq0sp, laddeqysp
|
||
|
.importzp sp, sreg
|
||
|
|
||
|
laddeq0sp:
|
||
|
ldy #0
|
||
|
laddeqysp:
|
||
|
clc
|
||
|
adc (sp),y
|
||
|
sta (sp),y
|
||
|
pha
|
||
|
iny
|
||
|
txa
|
||
|
adc (sp),y
|
||
|
sta (sp),y
|
||
|
tax
|
||
|
iny
|
||
|
lda sreg
|
||
|
adc (sp),y
|
||
|
sta (sp),y
|
||
|
sta sreg
|
||
|
iny
|
||
|
lda sreg+1
|
||
|
adc (sp),y
|
||
|
sta (sp),y
|
||
|
sta sreg+1
|
||
|
pla
|
||
|
rts
|
||
|
|