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5fc3b5d6 | 1 | /** @file\r |
2 | IA-32/x64 AsmFxSave()\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | \r | |
16 | \r | |
17 | \r | |
18 | #include "BaseLibInternals.h"\r | |
19 | \r | |
20 | /**\r | |
21 | Save the current floating point/SSE/SSE2 context to a buffer.\r | |
22 | \r | |
23 | Saves the current floating point/SSE/SSE2 state to the buffer specified by\r | |
24 | Buffer. Buffer must be aligned on a 16-byte boundary. This function is only\r | |
25 | available on IA-32 and x64.\r | |
26 | \r | |
27 | If Buffer is NULL, then ASSERT().\r | |
28 | If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r | |
29 | \r | |
30 | @param Buffer A pointer to a buffer to save the floating point/SSE/SSE2 context.\r | |
31 | \r | |
32 | **/\r | |
33 | VOID\r | |
34 | EFIAPI\r | |
35 | AsmFxSave (\r | |
36 | OUT IA32_FX_BUFFER *Buffer\r | |
37 | )\r | |
38 | {\r | |
39 | ASSERT (Buffer != NULL);\r | |
40 | ASSERT (0 == ((UINTN)Buffer & 0xf));\r | |
41 | \r | |
42 | InternalX86FxSave (Buffer);\r | |
43 | \r | |
44 | //\r | |
45 | // Mark one flag at end of Buffer, it will be check by AsmFxRestor()\r | |
46 | //\r | |
47 | *(UINT32 *) (&Buffer[sizeof (IA32_FX_BUFFER) - 4]) = 0xAA5555AA;\r | |
48 | }\r |