From 157d6f0d5b95261bf053566d8a1c2652387da30c Mon Sep 17 00:00:00 2001 From: James Cowgill Date: Thu, 5 Mar 2015 17:40:15 +0000 Subject: mips: port optimizations to mips n64 This mainly consists of replacing all the pointer arithmatic 'addiu' instructions with PTR_ADDIU which will handle the differences in pointer sizes when compiled on 64 bit mips systems. The header asmdefs.h contains the PTR_ macros which expend to the correct mips instructions to manipulate registers containing pointers. Signed-off-by: James Cowgill Reviewed-by: Nedeljko Babic Signed-off-by: Michael Niedermayer --- libavutil/mips/asmdefs.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libavutil/mips/asmdefs.h (limited to 'libavutil/mips/asmdefs.h') diff --git a/libavutil/mips/asmdefs.h b/libavutil/mips/asmdefs.h new file mode 100644 index 0000000000..4d2922c951 --- /dev/null +++ b/libavutil/mips/asmdefs.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2015 Imagination Technologies Ltd + * + * 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 + */ + +/** + * @file + * MIPS assembly defines from sys/asm.h but rewritten for use with C inline + * assembly (rather than from within .s files). + */ + +#ifndef AVCODEC_MIPS_ASMDEFS_H +#define AVCODEC_MIPS_ASMDEFS_H + +#include + +#if _MIPS_SIM == _ABI64 +# define PTRSIZE " 8 " +# define PTRLOG " 3 " +# define PTR_ADDU "daddu " +# define PTR_ADDIU "daddiu " +# define PTR_SUBU "dsubu " +# define PTR_L "ld " +#else +# define PTRSIZE " 4 " +# define PTRLOG " 2 " +# define PTR_ADDU "addu " +# define PTR_ADDIU "addiu " +# define PTR_SUBU "subu " +# define PTR_L "lw " +#endif + +#endif /* AVCODEC_MIPS_ASMDEFS_H */ -- cgit v1.2.3