| 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 */ |