You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

28 lines
358 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