yading@10: /*
yading@10:  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_MIPS_MATHOPS_H
yading@10: #define AVCODEC_MIPS_MATHOPS_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: #include "config.h"
yading@10: #include "libavutil/common.h"
yading@10: 
yading@10: #if HAVE_INLINE_ASM
yading@10: 
yading@10: #if HAVE_LOONGSON
yading@10: 
yading@10: static inline av_const int64_t MAC64(int64_t d, int a, int b)
yading@10: {
yading@10:     int64_t m;
yading@10:     __asm__ ("dmult.g %1, %2, %3 \n\t"
yading@10:              "daddu   %0, %0, %1 \n\t"
yading@10:              : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
yading@10:     return d;
yading@10: }
yading@10: #define MAC64(d, a, b) ((d) = MAC64(d, a, b))
yading@10: 
yading@10: static inline av_const int64_t MLS64(int64_t d, int a, int b)
yading@10: {
yading@10:     int64_t m;
yading@10:     __asm__ ("dmult.g %1, %2, %3 \n\t"
yading@10:              "dsubu   %0, %0, %1 \n\t"
yading@10:              : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
yading@10:     return d;
yading@10: }
yading@10: #define MLS64(d, a, b) ((d) = MLS64(d, a, b))
yading@10: 
yading@10: #elif ARCH_MIPS64
yading@10: 
yading@10: static inline av_const int64_t MAC64(int64_t d, int a, int b)
yading@10: {
yading@10:     int64_t m;
yading@10:     __asm__ ("dmult %2, %3     \n\t"
yading@10:              "mflo  %1         \n\t"
yading@10:              "daddu %0, %0, %1 \n\t"
yading@10:              : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
yading@10:              : "hi", "lo");
yading@10:     return d;
yading@10: }
yading@10: #define MAC64(d, a, b) ((d) = MAC64(d, a, b))
yading@10: 
yading@10: static inline av_const int64_t MLS64(int64_t d, int a, int b)
yading@10: {
yading@10:     int64_t m;
yading@10:     __asm__ ("dmult %2, %3     \n\t"
yading@10:              "mflo  %1         \n\t"
yading@10:              "dsubu %0, %0, %1 \n\t"
yading@10:              : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
yading@10:              : "hi", "lo");
yading@10:     return d;
yading@10: }
yading@10: #define MLS64(d, a, b) ((d) = MLS64(d, a, b))
yading@10: 
yading@10: #endif
yading@10: 
yading@10: #endif /* HAVE_INLINE_ASM */
yading@10: 
yading@10: #endif /* AVCODEC_MIPS_MATHOPS_H */