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cc65/libsrc/runtime/asleax3.s

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;
; 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