dd80f68072580b8a57c55d19a44dcc90860910d3
[libav.git] / libavcodec / mips / mathops.h
1 /*
2 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; 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_INLINE_ASM
29
30 #if HAVE_LOONGSON
31
32 static inline av_const int64_t MAC64(int64_t d, int a, int b)
33 {
34 int64_t m;
35 __asm__ ("dmult.g %1, %2, %3 \n\t"
36 "daddu %0, %0, %1 \n\t"
37 : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
38 return d;
39 }
40 #define MAC64(d, a, b) ((d) = MAC64(d, a, b))
41
42 static inline av_const int64_t MLS64(int64_t d, int a, int b)
43 {
44 int64_t m;
45 __asm__ ("dmult.g %1, %2, %3 \n\t"
46 "dsubu %0, %0, %1 \n\t"
47 : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
48 return d;
49 }
50 #define MLS64(d, a, b) ((d) = MLS64(d, a, b))
51
52 #elif ARCH_MIPS64
53
54 static inline av_const int64_t MAC64(int64_t d, int a, int b)
55 {
56 int64_t m;
57 __asm__ ("dmult %2, %3 \n\t"
58 "mflo %1 \n\t"
59 "daddu %0, %0, %1 \n\t"
60 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
61 : "hi", "lo");
62 return d;
63 }
64 #define MAC64(d, a, b) ((d) = MAC64(d, a, b))
65
66 static inline av_const int64_t MLS64(int64_t d, int a, int b)
67 {
68 int64_t m;
69 __asm__ ("dmult %2, %3 \n\t"
70 "mflo %1 \n\t"
71 "dsubu %0, %0, %1 \n\t"
72 : "+r"(d), "=&r"(m) : "r"(a), "r"(b)
73 : "hi", "lo");
74 return d;
75 }
76 #define MLS64(d, a, b) ((d) = MLS64(d, a, b))
77
78 #endif
79
80 #endif /* HAVE_INLINE_ASM */
81
82 #endif /* AVCODEC_MIPS_MATHOPS_H */