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author | Måns Rullgård <mans@mansr.com> | 2010-02-19 06:20:01 +0300 |
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committer | Måns Rullgård <mans@mansr.com> | 2010-02-19 06:20:01 +0300 |
commit | 95c0d02ddc35fffd302b3043add09c3786fd792c (patch) | |
tree | 1232af451da38462e57ed106aaf978d4d9cb2eb3 /libavutil/tomi/intreadwrite.h | |
parent | f4ce853125d48b6c195748f1612acbb764c94f64 (diff) |
TOMI: 16- and 32-bit intreadwrite functions
Originally committed as revision 21890 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavutil/tomi/intreadwrite.h')
-rw-r--r-- | libavutil/tomi/intreadwrite.h | 148 |
1 files changed, 148 insertions, 0 deletions
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 <mans@mansr.com> + * + * 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 <stdint.h> +#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 */ |