/*      $NetBSD: movstr_i4.S,v 1.6 2009/01/07 22:15:18 uwe Exp $        */

/*-
* Copyright (C) 2002 SHIMIZU Ryo.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <machine/asm.h>


#ifdef __ELF__
       .hidden __movstr_i4_odd, __movmem_i4_odd
       .hidden __movstr_i4_even, __movmem_i4_even
#endif


NENTRY(__movstr_i4_odd)
       add     #-8,r4
       nop
odd_loop:
       mov.l   @r5+,r0
       add     #8,r4
       mov.l   @r5+,r1
       dt      r6
       mov.l   r0,@(0,r4)
       bf/s    odd_loop
        mov.l  r1,@(4,r4)

       mov.l   @r5+,r0
       mov.l   @r5+,r1
       mov.l   @r5+,r2
       mov.l   r0,@(8,r4)
       mov.l   r1,@(12,r4)
       rts
        mov.l  r2,@(16,r4)


NENTRY(__movstr_i4_even)
       add     #-8,r4
       nop
even_loop:
       mov.l   @r5+,r0
       add     #8,r4
       mov.l   @r5+,r1
       dt      r6
       mov.l   r0,@(0,r4)
       bf/s    even_loop
        mov.l  r1,@(4,r4)

       mov.l   @r5+,r0
       mov.l   @r5+,r1
       mov.l   r0,@(8,r4)
       rts
        mov.l  r1,@(12,r4)


/* gcc4 uses movmem, older versions use movstr */
STRONG_ALIAS(__movmem_i4_odd, __movstr_i4_odd)
STRONG_ALIAS(__movmem_i4_even, __movstr_i4_even)