ref: 224feb11f9247b6bb793d89a4d03c4d20650192d dir: /sys/src/ape/lib/ap/68020/strcpy.s/
TEXT strcpy(SB), $0 MOVL s1+0(FP), A2 MOVL s2+4(FP), A1 l1: MOVB (A1)+, (A2)+ BNE l1 MOVL s1+0(FP), R0 RTS