; ; Ullrich von Bassewitz, 06.08.1998 ; ; CC65 runtime: Scale the 32 bit primary register by 4 ; .export asreax2 .importzp sreg, tmp1 asreax2: stx tmp1 ldx sreg+1 cpx #$80 ; Get bit 7 into carry ror sreg+1 ror sreg ror tmp1 ror a cpx #$80 ; Get bit 7 into carry ror sreg+1 ror sreg ror tmp1 ror a ldx tmp1 rts