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Annotation of sys/lib/libkern/arch/sh/movstr_i4.S, Revision 1.1.1.1

1.1       nbrk        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: _C_LABEL(__movmem_i4_odd) = _C_LABEL(__movstr_i4_odd)
                     74: _C_LABEL(__movmem_i4_even) = _C_LABEL(__movstr_i4_even)