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