yading@11: /*
yading@11:  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #ifndef AVUTIL_MIPS_INTREADWRITE_H
yading@11: #define AVUTIL_MIPS_INTREADWRITE_H
yading@11: 
yading@11: #include <stdint.h>
yading@11: #include "config.h"
yading@11: 
yading@11: #if ARCH_MIPS64 && HAVE_INLINE_ASM
yading@11: 
yading@11: #define AV_RN32 AV_RN32
yading@11: static av_always_inline uint32_t AV_RN32(const void *p)
yading@11: {
yading@11:     struct __attribute__((packed)) u32 { uint32_t v; };
yading@11:     const uint8_t *q = p;
yading@11:     const struct u32 *pl = (const struct u32 *)(q + 3 * !HAVE_BIGENDIAN);
yading@11:     const struct u32 *pr = (const struct u32 *)(q + 3 *  HAVE_BIGENDIAN);
yading@11:     uint32_t v;
yading@11:     __asm__ ("lwl %0, %1  \n\t"
yading@11:              "lwr %0, %2  \n\t"
yading@11:              : "=&r"(v)
yading@11:              : "m"(*pl), "m"(*pr));
yading@11:     return v;
yading@11: }
yading@11: 
yading@11: #endif /* ARCH_MIPS64 && HAVE_INLINE_ASM */
yading@11: 
yading@11: #endif /* AVUTIL_MIPS_INTREADWRITE_H */