#include __FBSDID("$FreeBSD$"); #if 0 RCSID("$NetBSD: bcmp.S,v 1.1 2001/06/19 00:25:04 fvdl Exp $") #endif ENTRY(bcmp) xorl %eax,%eax /* clear return value */ cld /* set compare direction forward */ movq %rdx,%rcx /* compare by words */ shrq $3,%rcx repe cmpsq jne L1 movq %rdx,%rcx /* compare remainder by bytes */ andq $7,%rcx repe cmpsb je L2 L1: incl %eax L2: ret