; ; 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