libavutil/x86/intmath.h
75fb5c24
 /*
  * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVUTIL_X86_INTMATH_H
 #define AVUTIL_X86_INTMATH_H
 
 #define FASTDIV(a,b) \
     ({\
         int ret, dmy;\
         __asm__ volatile(\
             "mull %3"\
             :"=d"(ret), "=a"(dmy)\
             :"1"(a), "g"(ff_inverse[b])\
             );\
         ret;\
     })
 
 #endif /* AVUTIL_X86_INTMATH_H */