PeerStreamer

/*

 * simple math operations

 * Copyright (c) 2001, 2002 Fabrice Bellard.

 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al

 *

 * 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 FFMPEG_PPC_MATHOPS_H

#define FFMPEG_PPC_MATHOPS_H

#if defined(ARCH_POWERPC_405)

/* signed 16x16 -> 32 multiply add accumulate */

#   define MAC16(rt, ra, rb) \

        asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb));

/* signed 16x16 -> 32 multiply */

#   define MUL16(ra, rb) \

        ({ int __rt;

         asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb));

         __rt; })

#endif

#endif /* FFMPEG_PPC_MATHOPS_H */