From 95c0d02ddc35fffd302b3043add09c3786fd792c Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Fri, 19 Feb 2010 03:20:01 +0000 Subject: TOMI: 16- and 32-bit intreadwrite functions Originally committed as revision 21890 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavutil/tomi/intreadwrite.h | 148 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 libavutil/tomi/intreadwrite.h (limited to 'libavutil/tomi') diff --git a/libavutil/tomi/intreadwrite.h b/libavutil/tomi/intreadwrite.h new file mode 100644 index 0000000000..778b804ca1 --- /dev/null +++ b/libavutil/tomi/intreadwrite.h @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2010 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 AVUTIL_TOMI_INTREADWRITE_H +#define AVUTIL_TOMI_INTREADWRITE_H + +#include +#include "config.h" + +#define AV_RB16 AV_RB16 +static av_always_inline uint16_t AV_RB16(const void *p) +{ + uint16_t v; + __asm__ ("loadacc, (%1+) \n\t" + "rol8 \n\t" + "storeacc, %0 \n\t" + "loadacc, (%1+) \n\t" + "add, %0 \n\t" + : "=r"(v), "+a"(p)); + return v; +} + +#define AV_WB16 AV_WB16 +static av_always_inline void AV_WB16(void *p, uint16_t v) +{ + __asm__ volatile ("loadacc, %1 \n\t" + "lsr8 \n\t" + "storeacc, (%0+) \n\t" + "loadacc, %1 \n\t" + "storeacc, (%0+) \n\t" + : "+&a"(p) : "r"(v)); +} + +#define AV_RL16 AV_RL16 +static av_always_inline uint16_t AV_RL16(const void *p) +{ + uint16_t v; + __asm__ ("loadacc, (%1+) \n\t" + "storeacc, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "add, %0 \n\t" + : "=r"(v), "+a"(p)); + return v; +} + +#define AV_WL16 AV_WL16 +static av_always_inline void AV_WL16(void *p, uint16_t v) +{ + __asm__ volatile ("loadacc, %1 \n\t" + "storeacc, (%0+) \n\t" + "lsr8 \n\t" + "storeacc, (%0+) \n\t" + : "+&a"(p) : "r"(v)); +} + +#define AV_RB32 AV_RB32 +static av_always_inline uint32_t AV_RB32(const void *p) +{ + uint32_t v; + __asm__ ("loadacc, (%1+) \n\t" + "rol8 \n\t" + "rol8 \n\t" + "rol8 \n\t" + "storeacc, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "rol8 \n\t" + "add, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "add, %0 \n\t" + "loadacc, (%1+) \n\t" + "add, %0 \n\t" + : "=r"(v), "+a"(p)); + return v; +} + +#define AV_WB32 AV_WB32 +static av_always_inline void AV_WB32(void *p, uint32_t v) +{ + __asm__ volatile ("loadacc, #4 \n\t" + "add, %0 \n\t" + "loadacc, %1 \n\t" + "storeacc, (-%0) \n\t" + "lsr8 \n\t" + "storeacc, (-%0) \n\t" + "lsr8 \n\t" + "storeacc, (-%0) \n\t" + "lsr8 \n\t" + "storeacc, (-%0) \n\t" + : "+&a"(p) : "r"(v)); +} + +#define AV_RL32 AV_RL32 +static av_always_inline uint32_t AV_RL32(const void *p) +{ + uint32_t v; + __asm__ ("loadacc, (%1+) \n\t" + "storeacc, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "add, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "rol8 \n\t" + "add, %0 \n\t" + "loadacc, (%1+) \n\t" + "rol8 \n\t" + "rol8 \n\t" + "rol8 \n\t" + "add, %0 \n\t" + : "=r"(v), "+a"(p)); + return v; +} + +#define AV_WL32 AV_WL32 +static av_always_inline void AV_WL32(void *p, uint32_t v) +{ + __asm__ volatile ("loadacc, %1 \n\t" + "storeacc, (%0+) \n\t" + "lsr8 \n\t" + "storeacc, (%0+) \n\t" + "lsr8 \n\t" + "storeacc, (%0+) \n\t" + "lsr8 \n\t" + "storeacc, (%0+) \n\t" + : "+&a"(p) : "r"(v)); +} + +#endif /* AVUTIL_TOMI_INTREADWRITE_H */ -- cgit v1.2.3