mirror of
https://github.com/cc65/cc65.git
synced 2024-11-14 05:05:45 +00:00
24 lines
270 B
ArmAsm
24 lines
270 B
ArmAsm
|
;
|
||
|
|
; Ullrich von Bassewitz, 06.08.1998
|
||
|
|
;
|
||
|
|
; CC65 runtime: Scale the 32 bit primary register by 4
|
||
|
|
;
|
||
|
|
|
||
|
|
.export asleax2, shleax2
|
||
|
|
.importzp sreg, tmp1
|
||
|
|
|
||
|
|
asleax2:
|
||
|
|
shleax2:
|
||
|
|
stx tmp1
|
||
|
|
asl a
|
||
|
|
rol tmp1
|
||
|
|
rol sreg
|
||
|
|
rol sreg+1
|
||
|
|
asl a
|
||
|
|
rol tmp1
|
||
|
|
rol sreg
|
||
|
|
rol sreg+1
|
||
|
|
ldx tmp1
|
||
|
|
rts
|
||
|
|
|