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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_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 */ |