1/* 2 * simple math operations 3 * Copyright (c) 2001, 2002 Fabrice Bellard 4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23#ifndef AVCODEC_PPC_MATHOPS_H 24#define AVCODEC_PPC_MATHOPS_H 25 26#include "config.h" 27 28#if HAVE_PPC4XX 29/* signed 16x16 -> 32 multiply add accumulate */ 30#define MAC16(rt, ra, rb) \ 31 __asm__ ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb)); 32 33/* signed 16x16 -> 32 multiply */ 34#define MUL16(ra, rb) \ 35 ({ int __rt; \ 36 __asm__ ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb)); \ 37 __rt; }) 38#endif 39 40#endif /* AVCODEC_PPC_MATHOPS_H */ 41