Libav 0.7.1
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00001 /* 00002 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> 00003 * 00004 * This file is part of Libav. 00005 * 00006 * Libav 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 * Libav 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 Libav; 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_INLINE_ASM 00029 00030 #if HAVE_LOONGSON 00031 00032 static inline av_const int64_t MAC64(int64_t d, int a, int b) 00033 { 00034 int64_t m; 00035 __asm__ ("dmult.g %1, %2, %3 \n\t" 00036 "daddu %0, %0, %1 \n\t" 00037 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00038 return d; 00039 } 00040 #define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 00041 00042 static inline av_const int64_t MLS64(int64_t d, int a, int b) 00043 { 00044 int64_t m; 00045 __asm__ ("dmult.g %1, %2, %3 \n\t" 00046 "dsubu %0, %0, %1 \n\t" 00047 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00048 return d; 00049 } 00050 #define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 00051 00052 #elif ARCH_MIPS64 00053 00054 static inline av_const int64_t MAC64(int64_t d, int a, int b) 00055 { 00056 int64_t m; 00057 __asm__ ("dmult %2, %3 \n\t" 00058 "mflo %1 \n\t" 00059 "daddu %0, %0, %1 \n\t" 00060 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00061 return d; 00062 } 00063 #define MAC64(d, a, b) ((d) = MAC64(d, a, b)) 00064 00065 static inline av_const int64_t MLS64(int64_t d, int a, int b) 00066 { 00067 int64_t m; 00068 __asm__ ("dmult %2, %3 \n\t" 00069 "mflo %1 \n\t" 00070 "dsubu %0, %0, %1 \n\t" 00071 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); 00072 return d; 00073 } 00074 #define MLS64(d, a, b) ((d) = MLS64(d, a, b)) 00075 00076 #endif 00077 00078 #endif /* HAVE_INLINE_ASM */ 00079 00080 #endif /* AVCODEC_MIPS_MATHOPS_H */