/*

  * simple math operations

  *
  * Copyright (C) 2007 Marc Hoffman <mmhoffm@gmail.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 AVCODEC_BFIN_MATHOPS_H
 #define AVCODEC_BFIN_MATHOPS_H

 #include "config.h"
 

 #define MULH(X,Y) ({ int xxo;                           \

     __asm__ (                                               \

         "a1 = %2.L * %1.L (FU);\n\t"                    \
         "a1 = a1 >> 16;\n\t"                            \
         "a1 += %2.H * %1.L (IS,M);\n\t"                 \
         "a0 = %1.H * %2.H, a1+= %1.H * %2.L (IS,M);\n\t"\
         "a1 = a1 >>> 16;\n\t"                           \
         "%0 = (a0 += a1);\n\t"                          \

         : "=d" (xxo) : "d" (X), "d" (Y) : "A0","A1"); xxo; })

 
 /* signed 16x16 -> 32 multiply */
 #define MUL16(a, b) ({ int xxo;                         \

     __asm__ (                                               \

        "%0 = %1.l*%2.l (is);\n\t"                       \

        : "=W" (xxo) : "d" (a), "d" (b) : "A1");         \

     xxo; })
 

 #endif /* AVCODEC_BFIN_MATHOPS_H */