add multiple inclusion guards to headers
[libav.git] / libavcodec / ppc / mathops.h
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1/*
2 * simple math operations
3 * Copyright (c) 2001, 2002 Fabrice Bellard.
4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
5 *
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6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
99aed7c8 12 *
b78e7197 13 * FFmpeg is distributed in the hope that it will be useful,
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
b78e7197 19 * License along with FFmpeg; if not, write to the Free Software
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20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
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23#ifndef AVCODEC_PPC_MATHOPS_H
24#define AVCODEC_PPC_MATHOPS_H
25
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26#if defined(ARCH_POWERPC_405)
27/* signed 16x16 -> 32 multiply add accumulate */
28# define MAC16(rt, ra, rb) \
29 asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb));
30
31/* signed 16x16 -> 32 multiply */
32# define MUL16(ra, rb) \
33 ({ int __rt;
34 asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb));
35 __rt; })
36#endif
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37
38#endif