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/*
* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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"
#include "libavutil/attributes.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 */
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