1/* 2 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#ifndef AVCODEC_MIPS_MATHOPS_H 22#define AVCODEC_MIPS_MATHOPS_H 23 24#include <stdint.h> 25#include "config.h" 26#include "libavutil/common.h" 27 28#if HAVE_LOONGSON 29 30static inline av_const int64_t MAC64(int64_t d, int a, int b) 31{ 32 int64_t m; 33 __asm__ ("dmult.g %1, %2, %3 \n\t" 34 "daddu %0, %0, %1 \n\t" 35 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 36 return d; 37} 38#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 39 40static inline av_const int64_t MLS64(int64_t d, int a, int b) 41{ 42 int64_t m; 43 __asm__ ("dmult.g %1, %2, %3 \n\t" 44 "dsubu %0, %0, %1 \n\t" 45 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 46 return d; 47} 48#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 49 50#elif ARCH_MIPS64 51 52static inline av_const int64_t MAC64(int64_t d, int a, int b) 53{ 54 int64_t m; 55 __asm__ ("dmult %2, %3 \n\t" 56 "mflo %1 \n\t" 57 "daddu %0, %0, %1 \n\t" 58 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 59 return d; 60} 61#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 62 63static inline av_const int64_t MLS64(int64_t d, int a, int b) 64{ 65 int64_t m; 66 __asm__ ("dmult %2, %3 \n\t" 67 "mflo %1 \n\t" 68 "dsubu %0, %0, %1 \n\t" 69 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 70 return d; 71} 72#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 73 74#endif 75 76#endif /* AVCODEC_MIPS_MATHOPS_H */ 77