1/* 2 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> 3 * 4 * This file is part of Libav. 5 * 6 * Libav 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 * Libav 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 Libav; 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_INLINE_ASM 29 30#if HAVE_LOONGSON 31 32static inline av_const int64_t MAC64(int64_t d, int a, int b) 33{ 34 int64_t m; 35 __asm__ ("dmult.g %1, %2, %3 \n\t" 36 "daddu %0, %0, %1 \n\t" 37 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 38 return d; 39} 40#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 41 42static inline av_const int64_t MLS64(int64_t d, int a, int b) 43{ 44 int64_t m; 45 __asm__ ("dmult.g %1, %2, %3 \n\t" 46 "dsubu %0, %0, %1 \n\t" 47 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 48 return d; 49} 50#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 51 52#elif ARCH_MIPS64 53 54static inline av_const int64_t MAC64(int64_t d, int a, int b) 55{ 56 int64_t m; 57 __asm__ ("dmult %2, %3 \n\t" 58 "mflo %1 \n\t" 59 "daddu %0, %0, %1 \n\t" 60 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 61 return d; 62} 63#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 64 65static inline av_const int64_t MLS64(int64_t d, int a, int b) 66{ 67 int64_t m; 68 __asm__ ("dmult %2, %3 \n\t" 69 "mflo %1 \n\t" 70 "dsubu %0, %0, %1 \n\t" 71 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 72 return d; 73} 74#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 75 76#endif 77 78#endif /* HAVE_INLINE_ASM */ 79 80#endif /* AVCODEC_MIPS_MATHOPS_H */ 81