45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 by Michael Sevakis
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include <string.h>
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#include <inttypes.h>
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void memswap128(void *a, void *b, size_t len)
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{
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for (len >>= 4; len > 0; len--, a += 16, b += 16)
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{
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int32_t a0 = *((int32_t *)a + 0);
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int32_t a1 = *((int32_t *)a + 1);
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int32_t a2 = *((int32_t *)a + 2);
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int32_t a3 = *((int32_t *)a + 3);
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int32_t b0 = *((int32_t *)b + 0);
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int32_t b1 = *((int32_t *)b + 1);
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int32_t b2 = *((int32_t *)b + 2);
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int32_t b3 = *((int32_t *)b + 3);
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*((int32_t *)b + 0) = a0;
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*((int32_t *)b + 1) = a1;
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*((int32_t *)b + 2) = a2;
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*((int32_t *)b + 3) = a3;
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*((int32_t *)a + 0) = b0;
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*((int32_t *)a + 1) = b1;
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*((int32_t *)a + 2) = b2;
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*((int32_t *)a + 3) = b3;
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}
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}
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