mirror of
https://github.com/reactos/reactos.git
synced 2024-10-31 03:48:17 +00:00
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
|
|
/*******************************************************************************
|
|
MIT License
|
|
-----------
|
|
|
|
Copyright (c) 2002-2019 Advanced Micro Devices, Inc.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this Software and associated documentaon 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.
|
|
*******************************************************************************/
|
|
|
|
#ifdef TEST_STANDALONE
|
|
#include <stdio.h>
|
|
#ifdef _MSC_VER
|
|
#pragma section (".CRT$XIC",long,read)
|
|
#define _CRTALLOC(x) __declspec(allocate(x))
|
|
#endif /* _MSC_VER */
|
|
#else
|
|
#include <intrin.h>
|
|
#include <sect_attribs.h>
|
|
#undef _CRTALLOC
|
|
#define _CRTALLOC(x)
|
|
#endif
|
|
|
|
typedef int (__cdecl *_PIFV)(void); // FIXME: include process.h?
|
|
|
|
int __fma3_is_available = 0;
|
|
int __use_fma3_lib = 0;
|
|
|
|
|
|
int __cdecl _set_FMA3_enable(int flag)
|
|
{
|
|
if (__fma3_is_available) __use_fma3_lib = flag;
|
|
return __use_fma3_lib;
|
|
}
|
|
|
|
int __fma3_lib_init(void);
|
|
|
|
_CRTALLOC(".CRT$XIC") static _PIFV init_fma3 = __fma3_lib_init;
|
|
|
|
int __fma3_lib_init(void)
|
|
{
|
|
int CPUID[4]; // CPUID[2] is ECX;
|
|
|
|
__fma3_is_available = 0;
|
|
__cpuid(CPUID, 1);
|
|
if (CPUID[2] & (1 << 12)) {
|
|
__fma3_is_available = 1;
|
|
}
|
|
|
|
__use_fma3_lib = __fma3_is_available;
|
|
return 0;
|
|
}
|