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ffmpeg / libavcodec / mips / mathops.h @ d112aa5a

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/*
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 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#ifndef AVCODEC_MIPS_MATHOPS_H
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#define AVCODEC_MIPS_MATHOPS_H
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#include <stdint.h>
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#include "config.h"
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#include "libavutil/common.h"
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#if HAVE_INLINE_ASM
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#if HAVE_LOONGSON
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static inline av_const int64_t MAC64(int64_t d, int a, int b)
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{
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    int64_t m;
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    __asm__ ("dmult.g %1, %2, %3 \n\t"
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             "daddu   %0, %0, %1 \n\t"
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             : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
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    return d;
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}
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#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
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static inline av_const int64_t MLS64(int64_t d, int a, int b)
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{
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    int64_t m;
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    __asm__ ("dmult.g %1, %2, %3 \n\t"
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             "dsubu   %0, %0, %1 \n\t"
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             : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
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    return d;
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}
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#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
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#elif ARCH_MIPS64
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static inline av_const int64_t MAC64(int64_t d, int a, int b)
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{
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    int64_t m;
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    __asm__ ("dmult %2, %3     \n\t"
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             "mflo  %1         \n\t"
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             "daddu %0, %0, %1 \n\t"
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             : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
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    return d;
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}
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#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
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static inline av_const int64_t MLS64(int64_t d, int a, int b)
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{
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    int64_t m;
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    __asm__ ("dmult %2, %3     \n\t"
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             "mflo  %1         \n\t"
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             "dsubu %0, %0, %1 \n\t"
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             : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
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    return d;
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}
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#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
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#endif
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#endif /* HAVE_INLINE_ASM */
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#endif /* AVCODEC_MIPS_MATHOPS_H */