mathops: mips: Correctly enable loongson-specific assembly
[libav.git] / libavcodec / mips / mathops.h
CommitLineData
9d48e28f
MR
1/*
2 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
3 *
2912e87a 4 * This file is part of Libav.
9d48e28f 5 *
2912e87a 6 * Libav is free software; you can redistribute it and/or
9d48e28f
MR
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 *
2912e87a 11 * Libav is distributed in the hope that it will be useful,
9d48e28f
MR
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
2912e87a 17 * License along with Libav; if not, write to the Free Software
9d48e28f
MR
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
c7312933 24#include <stdint.h>
deb1b2b6 25#include "config.h"
c7312933 26#include "libavutil/common.h"
9d48e28f 27
7a5a168a
MR
28#if HAVE_INLINE_ASM
29
9d48e28f 30#if HAVE_LOONGSON
c4de754d 31#if ARCH_MIPS64
9d48e28f
MR
32
33static inline av_const int64_t MAC64(int64_t d, int a, int b)
34{
35 int64_t m;
c4de754d
LB
36 __asm__ ("dmult %2, %3 \n\t"
37 "mflo %1 \n\t"
38 "daddu %0, %0, %1 \n\t"
39 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
40 : "hi", "lo");
9d48e28f
MR
41 return d;
42}
43#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
44
45static inline av_const int64_t MLS64(int64_t d, int a, int b)
46{
47 int64_t m;
c4de754d
LB
48 __asm__ ("dmult %2, %3 \n\t"
49 "mflo %1 \n\t"
50 "dsubu %0, %0, %1 \n\t"
51 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
52 : "hi", "lo");
9d48e28f
MR
53 return d;
54}
55#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
56
c4de754d 57#else
9d48e28f
MR
58
59static inline av_const int64_t MAC64(int64_t d, int a, int b)
60{
61 int64_t m;
c4de754d
LB
62 __asm__ ("dmult.g %1, %2, %3 \n\t"
63 "daddu %0, %0, %1 \n\t"
64 : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
9d48e28f
MR
65 return d;
66}
67#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
68
69static inline av_const int64_t MLS64(int64_t d, int a, int b)
70{
71 int64_t m;
c4de754d
LB
72 __asm__ ("dmult.g %1, %2, %3 \n\t"
73 "dsubu %0, %0, %1 \n\t"
74 : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
9d48e28f
MR
75 return d;
76}
77#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
78
79#endif
80
c4de754d
LB
81#endif /* HAVE_LOONGSON */
82
7a5a168a
MR
83#endif /* HAVE_INLINE_ASM */
84
9d48e28f 85#endif /* AVCODEC_MIPS_MATHOPS_H */