/*
* simple math operations
*
* Copyright (C) 2007 Marc Hoffman
*
* 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 */