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/*

 * ====================================================

 * Copyright (C) 1998 by Cygnus Solutions. All rights reserved.

 *

 * Permission to use, copy, modify, and distribute this

 * software is freely granted, provided that this notice

 * is preserved.

 * ====================================================

 */

        #include "i386mach.h"

        .global SYM (memcpy)

SYM (memcpy):

        pushl ebp

        movl esp,ebp

        pushl esi

        pushl edi

        pushl ebx

        movl 8(ebp),edi

        movl 16(ebp),ecx

        movl 12(ebp),esi

        cld

#ifndef __OPTIMIZE_SIZE__

        cmpl $8,ecx

        jbe .L3

/* move any preceding bytes until destination address is long word aligned */

        movl edi,edx

        movl ecx,ebx

        andl $3,edx

        jz .L11

        movl $4,ecx

        subl edx,ecx

        andl $3,ecx

        subl ecx,ebx

        rep

        movsb

        mov ebx,ecx

/* move bytes a long word at a time */

.L11:

        shrl $2,ecx

        .p2align 2

        rep

        movsl

        movl ebx,ecx

        andl $3,ecx

#endif /* !__OPTIMIZE_SIZE__ */

/* handle any remaining bytes */

.L3:

        rep

        movsb

.L5:

        movl 8(ebp),eax

        leal -12(ebp),esp

        popl ebx

        popl edi

        popl esi

        leave

        ret