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67 lines
1.9 KiB
67 lines
1.9 KiB
/* |
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* Copyright (c) 2009 Mans Rullgard <mans@mansr.com> |
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* Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_MIPS_MATHOPS_H |
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#define AVCODEC_MIPS_MATHOPS_H |
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#include <stdint.h> |
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#include "config.h" |
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#include "libavutil/common.h" |
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#if HAVE_INLINE_ASM |
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#if HAVE_LOONGSON3 |
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#define MULH MULH |
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static inline av_const int MULH(int a, int b) |
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{ |
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int c; |
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__asm__ ("dmult %1, %2 \n\t" |
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"mflo %0 \n\t" |
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"dsrl %0, %0, 32 \n\t" |
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: "=r"(c) |
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: "r"(a),"r"(b) |
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: "hi", "lo"); |
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return c; |
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} |
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#define mid_pred mid_pred |
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static inline av_const int mid_pred(int a, int b, int c) |
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{ |
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int t = b; |
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__asm__ ("sgt $8, %1, %2 \n\t" |
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"movn %0, %1, $8 \n\t" |
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"movn %1, %2, $8 \n\t" |
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"sgt $8, %1, %3 \n\t" |
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"movz %1, %3, $8 \n\t" |
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"sgt $8, %0, %1 \n\t" |
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"movn %0, %1, $8 \n\t" |
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: "+&r"(t),"+&r"(a) |
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: "r"(b),"r"(c) |
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: "$8"); |
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return t; |
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} |
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#endif /* HAVE_LOONGSON3 */ |
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#endif /* HAVE_INLINE_ASM */ |
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#endif /* AVCODEC_MIPS_MATHOPS_H */
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