ref: bd63aeb60d1c38cd04e2f64c809685814c5607d7 dir: /sys/src/libc/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