nengel@2: /*
nengel@2:  * Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_X86_INTREADWRITE_H
nengel@2: #define AVUTIL_X86_INTREADWRITE_H
nengel@2: 
nengel@2: #include <stdint.h>
nengel@2: #include "config.h"
nengel@2: #include "libavutil/attributes.h"
nengel@2: 
nengel@2: #if HAVE_MMX
nengel@2: 
nengel@2: #if defined(__MMX__)
nengel@2: 
nengel@2: #define AV_COPY64 AV_COPY64
nengel@2: static av_always_inline void AV_COPY64(void *d, const void *s)
nengel@2: {
nengel@2:     __asm__("movq   %1, %%mm0  \n\t"
nengel@2:             "movq   %%mm0, %0  \n\t"
nengel@2:             : "=m"(*(uint64_t*)d)
nengel@2:             : "m" (*(const uint64_t*)s)
nengel@2:             : "mm0");
nengel@2: }
nengel@2: 
nengel@2: #define AV_SWAP64 AV_SWAP64
nengel@2: static av_always_inline void AV_SWAP64(void *a, void *b)
nengel@2: {
nengel@2:     __asm__("movq   %1, %%mm0  \n\t"
nengel@2:             "movq   %0, %%mm1  \n\t"
nengel@2:             "movq   %%mm0, %0  \n\t"
nengel@2:             "movq   %%mm1, %1  \n\t"
nengel@2:             : "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b)
nengel@2:             ::"mm0", "mm1");
nengel@2: }
nengel@2: 
nengel@2: #define AV_ZERO64 AV_ZERO64
nengel@2: static av_always_inline void AV_ZERO64(void *d)
nengel@2: {
nengel@2:     __asm__("pxor %%mm0, %%mm0  \n\t"
nengel@2:             "movq %%mm0, %0     \n\t"
nengel@2:             : "=m"(*(uint64_t*)d)
nengel@2:             :: "mm0");
nengel@2: }
nengel@2: 
nengel@2: #endif /* !HAVE_FAST_64BIT && defined(__MMX__) */
nengel@2: 
nengel@2: #ifdef __SSE__
nengel@2: 
nengel@2: #define AV_COPY128 AV_COPY128
nengel@2: static av_always_inline void AV_COPY128(void *d, const void *s)
nengel@2: {
nengel@2:     struct v {uint64_t v[2];};
nengel@2: 
nengel@2:     __asm__("movaps   %1, %%xmm0  \n\t"
nengel@2:             "movaps   %%xmm0, %0  \n\t"
nengel@2:             : "=m"(*(struct v*)d)
nengel@2:             : "m" (*(const struct v*)s)
nengel@2:             : "xmm0");
nengel@2: }
nengel@2: 
nengel@2: #endif /* __SSE__ */
nengel@2: 
nengel@2: #ifdef __SSE2__
nengel@2: 
nengel@2: #define AV_ZERO128 AV_ZERO128
nengel@2: static av_always_inline void AV_ZERO128(void *d)
nengel@2: {
nengel@2:     struct v {uint64_t v[2];};
nengel@2: 
nengel@2:     __asm__("pxor %%xmm0, %%xmm0  \n\t"
nengel@2:             "movdqa   %%xmm0, %0  \n\t"
nengel@2:             : "=m"(*(struct v*)d)
nengel@2:             :: "xmm0");
nengel@2: }
nengel@2: 
nengel@2: #endif /* __SSE2__ */
nengel@2: 
nengel@2: #endif /* HAVE_MMX */
nengel@2: 
nengel@2: #endif /* AVUTIL_X86_INTREADWRITE_H */