mirror of
https://github.com/cc65/cc65.git
synced 2024-12-24 11:31:31 +00:00
29 lines
378 B
ArmAsm
29 lines
378 B
ArmAsm
|
;
|
||
|
|
; Ullrich von Bassewitz, 08.08.1998
|
||
|
|
;
|
||
|
|
; CC65 runtime: save ax into temp storage/restore ax from temp storage
|
||
|
|
;
|
||
|
|
|
||
|
|
.export saveeax, resteax
|
||
|
|
.importzp sreg, regsave
|
||
|
|
|
||
|
|
saveeax:
|
||
|
|
sta regsave
|
||
|
|
stx regsave+1
|
||
|
|
lda sreg
|
||
|
|
sta regsave+2
|
||
|
|
lda sreg+1
|
||
|
|
sta regsave+3
|
||
|
|
lda regsave
|
||
|
|
rts
|
||
|
|
|
||
|
|
resteax:
|
||
|
|
lda regsave+3
|
||
|
|
sta sreg+1
|
||
|
|
lda regsave+2
|
||
|
|
sta sreg
|
||
|
|
ldx regsave+1
|
||
|
|
lda regsave
|
||
|
|
rts
|
||
|
|
|