ref: 5b81e7de3f1ab3691438878cf1da912a54138d5f
dir: /sys/src/libc/68020/memcmp.s/
TEXT memcmp(SB),$0 MOVL n+8(FP),R0 BEQ ret MOVL s1+0(FP),A2 MOVL s2+4(FP),A1 l1: CMPB (A1)+,(A2)+ BNE neq SUBL $1,R0 BNE l1 RTS neq: BCS gtr MOVL $-1,R0 RTS gtr: MOVL $1,R0 ret: RTS