mirror of
https://github.com/cc65/cc65.git
synced 2024-11-13 13:11:06 +00:00
29 lines
423 B
ArmAsm
29 lines
423 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 31.08.1998
|
|
;
|
|
; CC65 runtime: Push word from stack
|
|
;
|
|
|
|
.export pushb, pushbidx
|
|
.import pushax
|
|
.importzp ptr1
|
|
|
|
pushbidx:
|
|
sty ptr1
|
|
clc
|
|
adc ptr1
|
|
bcc pushb
|
|
inx
|
|
pushb: sta ptr1
|
|
stx ptr1+1
|
|
ldx #0 ; Load index/high byte
|
|
.ifpc02
|
|
lda (ptr1) ; Save one cycle for the C02
|
|
.else
|
|
lda (ptr1,x)
|
|
.endif
|
|
bpl L1
|
|
dex ; Make high byte FF
|
|
L1: jmp pushax
|
|
|