zig/c_headers/fxsrintrin.h
2018-08-05 02:20:05 -04:00

106 lines
3.7 KiB
C

/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------===
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*===-----------------------------------------------------------------------===
*/
#ifndef __IMMINTRIN_H
#error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead."
#endif
#ifndef __FXSRINTRIN_H
#define __FXSRINTRIN_H
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr")))
/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
/// memory region pointed to by the input parameter \a __p.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the <c> FXSAVE </c> instruction.
///
/// \param __p
/// A pointer to a 512-byte memory region. The beginning of this memory
/// region should be aligned on a 16-byte boundary.
static __inline__ void __DEFAULT_FN_ATTRS
_fxsave(void *__p)
{
__builtin_ia32_fxsave(__p);
}
/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
/// memory region pointed to by the input parameter \a __p. The contents of
/// this memory region should have been written to by a previous \c _fxsave
/// or \c _fxsave64 intrinsic.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction.
///
/// \param __p
/// A pointer to a 512-byte memory region. The beginning of this memory
/// region should be aligned on a 16-byte boundary.
static __inline__ void __DEFAULT_FN_ATTRS
_fxrstor(void *__p)
{
__builtin_ia32_fxrstor(__p);
}
#ifdef __x86_64__
/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
/// memory region pointed to by the input parameter \a __p.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction.
///
/// \param __p
/// A pointer to a 512-byte memory region. The beginning of this memory
/// region should be aligned on a 16-byte boundary.
static __inline__ void __DEFAULT_FN_ATTRS
_fxsave64(void *__p)
{
__builtin_ia32_fxsave64(__p);
}
/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
/// memory region pointed to by the input parameter \a __p. The contents of
/// this memory region should have been written to by a previous \c _fxsave
/// or \c _fxsave64 intrinsic.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction.
///
/// \param __p
/// A pointer to a 512-byte memory region. The beginning of this memory
/// region should be aligned on a 16-byte boundary.
static __inline__ void __DEFAULT_FN_ATTRS
_fxrstor64(void *__p)
{
__builtin_ia32_fxrstor64(__p);
}
#endif
#undef __DEFAULT_FN_ATTRS
#endif