.define .sts .sect .text .sect .rom .sect .data .sect .bss ! d0 : # bytes ! a0 : destination address .sect .text .sts: move.l (sp)+,a1 move.w (sp)+,d0 move.l (sp)+,a0 cmp #1,d0 bne 1f move.w (sp)+,d0 move.b d0,(a0) bra 3f 1: asr #1,d0 2: move.w (sp)+,(a0)+ sub #1,d0 bgt 2b 3: jmp (a1)