mirror of
https://github.com/cc65/cc65.git
synced 2024-06-07 23:29:39 +00:00
28 lines
497 B
ArmAsm
28 lines
497 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 06.08.1998
|
|
;
|
|
; CC65 runtime: Scale the 32 bit primary register by 8
|
|
;
|
|
|
|
.export asleax3, shleax3
|
|
.importzp sreg, tmp1
|
|
|
|
asleax3:
|
|
shleax3:
|
|
stx tmp1
|
|
asl a
|
|
rol tmp1
|
|
rol sreg
|
|
rol sreg+1
|
|
asl a
|
|
rol tmp1
|
|
rol sreg
|
|
rol sreg+1
|
|
asl a
|
|
rol tmp1
|
|
rol sreg
|
|
rol sreg+1
|
|
ldx tmp1
|
|
rts
|
|
|