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