mirror of
https://github.com/cc65/cc65.git
synced 2024-10-31 04:04:49 +00:00
23 lines
286 B
ArmAsm
23 lines
286 B
ArmAsm
|
;
|
||
|
|
; Ullrich von Bassewitz, 25.07.2001
|
||
|
|
;
|
||
|
|
; CC65 runtime: Scale the 32 bit primary register by 16
|
||
|
|
;
|
||
|
|
|
||
|
|
.export asleax4, shleax4
|
||
|
|
.importzp sreg, tmp1
|
||
|
|
|
||
|
|
asleax4:
|
||
|
|
shleax4:
|
||
|
|
stx tmp1
|
||
|
|
ldx #4
|
||
|
|
@L1: asl a
|
||
|
|
rol tmp1
|
||
|
|
rol sreg
|
||
|
|
rol sreg+1
|
||
|
|
dex
|
||
|
|
bne @L1
|
||
|
|
ldx tmp1
|
||
|
|
rts
|
||
|
|
|