You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

25 lines
256 B
ArmAsm

;
; Ullrich von Bassewitz, 08.10.1998
;
; CC65 runtime: += operator for ints on the stack
;
.export addeq0sp, addeqysp
.importzp sp
addeq0sp:
ldy #0
addeqysp:
clc
adc (sp),y
sta (sp),y
pha
iny
txa
adc (sp),y
sta (sp),y
tax
pla
rts