Libav
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00001 /* 00002 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #ifndef AVCODEC_MIPS_MATHOPS_H 00022 #define AVCODEC_MIPS_MATHOPS_H 00023 00024 #include <stdint.h> 00025 #include "config.h" 00026 #include "libavutil/common.h" 00027 00028 #if HAVE_LOONGSON 00029 00030 static inline av_const int64_t MAC64(int64_t d, int a, int b) 00031 { 00032 int64_t m; 00033 __asm__ ("dmult.g %1, %2, %3 \n\t" 00034 "daddu %0, %0, %1 \n\t" 00035 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00036 return d; 00037 } 00038 #define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 00039 00040 static inline av_const int64_t MLS64(int64_t d, int a, int b) 00041 { 00042 int64_t m; 00043 __asm__ ("dmult.g %1, %2, %3 \n\t" 00044 "dsubu %0, %0, %1 \n\t" 00045 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00046 return d; 00047 } 00048 #define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 00049 00050 #elif ARCH_MIPS64 00051 00052 static inline av_const int64_t MAC64(int64_t d, int a, int b) 00053 { 00054 int64_t m; 00055 __asm__ ("dmult %2, %3 \n\t" 00056 "mflo %1 \n\t" 00057 "daddu %0, %0, %1 \n\t" 00058 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00059 return d; 00060 } 00061 #define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 00062 00063 static inline av_const int64_t MLS64(int64_t d, int a, int b) 00064 { 00065 int64_t m; 00066 __asm__ ("dmult %2, %3 \n\t" 00067 "mflo %1 \n\t" 00068 "dsubu %0, %0, %1 \n\t" 00069 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00070 return d; 00071 } 00072 #define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 00073 00074 #endif 00075 00076 #endif /* AVCODEC_MIPS_MATHOPS_H */