root/lib/libc/x86_64/string/memcpy.S 
/*      $NetBSD: memcpy.S,v 1.1 2001/06/19 00:25:05 fvdl Exp $  */
/*      $FreeBSD: src/lib/libc/amd64/string/memcpy.S,v 1.1 2005/04/07 03:56:03 alc Exp $ */

#define DO_MEMCOPY
#include "bcopy.S"