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movstr_i4.S revision 1.5 
      1 /*	$NetBSD: movstr_i4.S,v 1.5 2006/05/22 21:34:08 uwe Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 2002 SHIMIZU Ryo.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <machine/asm.h>
     30 
     31 
     32 NENTRY(__movstr_i4_odd)
     33 	add	#-8,r4
     34 	nop
     35 odd_loop:
     36 	mov.l	@r5+,r0
     37 	add	#8,r4
     38 	mov.l	@r5+,r1
     39 	dt	r6
     40 	mov.l	r0,@(0,r4)
     41 	bf/s	odd_loop
     42 	 mov.l	r1,@(4,r4)
     43 
     44 	mov.l	@r5+,r0
     45 	mov.l	@r5+,r1
     46 	mov.l	@r5+,r2
     47 	mov.l	r0,@(8,r4)
     48 	mov.l	r1,@(12,r4)
     49 	rts
     50 	 mov.l	r2,@(16,r4)
     51 
     52 
     53 NENTRY(__movstr_i4_even)
     54 	add	#-8,r4
     55 	nop
     56 even_loop:
     57 	mov.l	@r5+,r0
     58 	add	#8,r4
     59 	mov.l	@r5+,r1
     60 	dt	r6
     61 	mov.l	r0,@(0,r4)
     62 	bf/s	even_loop
     63 	 mov.l	r1,@(4,r4)
     64 
     65 	mov.l	@r5+,r0
     66 	mov.l	@r5+,r1
     67 	mov.l	r0,@(8,r4)
     68 	rts
     69 	 mov.l	r1,@(12,r4)
     70 
     71 
     72 /* gcc4 uses movmem, older versions use movstr */
     73 STRONG_ALIAS(__movmem_i4_odd, __movstr_i4_odd)
     74 STRONG_ALIAS(__movmem_i4_even, __movstr_i4_even)
     75