#include <machine/asm.h> #if defined(LIBC_SCCS) RCSID("$NetBSD: bcmp.S,v 1.3 2014/03/22 19:16:34 jakllsch Exp $") #endif ENTRY(bcmp) xorl %eax,%eax /* clear return value */ 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 END(bcmp) |