From 9d48e28f00c992cfc870726533e0d5b3b1390ee2 Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Thu, 28 May 2009 23:19:32 +0000 Subject: MIPS: add MIPS64 and Loongson asm for MAC64/MLS64 Originally committed as revision 18979 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mips/mathops.h | 74 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 libavcodec/mips/mathops.h (limited to 'libavcodec/mips') diff --git a/libavcodec/mips/mathops.h b/libavcodec/mips/mathops.h new file mode 100644 index 0000000000..e763f7be9e --- /dev/null +++ b/libavcodec/mips/mathops.h @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2009 Mans Rullgard + * + * 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 "config.h" + +#if HAVE_LOONGSON + +static inline av_const int64_t MAC64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult.g %1, %2, %3 \n\t" + "daddu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) + +static inline av_const int64_t MLS64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult.g %1, %2, %3 \n\t" + "dsubu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) + +#elif ARCH_MIPS64 + +static inline av_const int64_t MAC64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult %2, %3 \n\t" + "mflo %1 \n\t" + "daddu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MAC64(d, a, b) ((d) = MAC64(d, a, b)) + +static inline av_const int64_t MLS64(int64_t d, int a, int b) +{ + int64_t m; + __asm__ ("dmult %2, %3 \n\t" + "mflo %1 \n\t" + "dsubu %0, %0, %1 \n\t" + : "+r"(d), "=&r"(m) : "r"(a), "r"(b)); + return d; +} +#define MLS64(d, a, b) ((d) = MLS64(d, a, b)) + +#endif + +#endif /* AVCODEC_MIPS_MATHOPS_H */ -- cgit v1.2.3