]>
git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Library/BaseLib/X86FxSave.c
4 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php.
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 #include "BaseLibInternals.h"
21 Save the current floating point/SSE/SSE2 context to a buffer.
23 Saves the current floating point/SSE/SSE2 state to the buffer specified by
24 Buffer. Buffer must be aligned on a 16-byte boundary. This function is only
25 available on IA-32 and x64.
27 If Buffer is NULL, then ASSERT().
28 If Buffer is not aligned on a 16-byte boundary, then ASSERT().
30 @param Buffer A pointer to a buffer to save the floating point/SSE/SSE2 context.
36 OUT IA32_FX_BUFFER
*Buffer
39 ASSERT (Buffer
!= NULL
);
40 ASSERT (0 == ((UINTN
)Buffer
& 0xf));
42 InternalX86FxSave (Buffer
);
45 // Mark one flag at end of Buffer, it will be check by AsmFxRestor()
47 *(UINT32
*) (&Buffer
->Buffer
[sizeof (Buffer
->Buffer
) - 4]) = 0xAA5555AA;