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