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ffmpeg / libavutil / x86 / intmath.h @ 08675bb3

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/*
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 * Copyright (c) 2010 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 AVUTIL_X86_INTMATH_H
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#define AVUTIL_X86_INTMATH_H
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#define FASTDIV(a,b) \
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    ({\
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        int ret, dmy;\
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        __asm__ volatile(\
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            "mull %3"\
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            :"=d"(ret), "=a"(dmy)\
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            :"1"(a), "g"(ff_inverse[b])\
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            );\
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        ret;\
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    })
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#endif /* AVUTIL_X86_INTMATH_H */