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e1f414b6 | 1 | /** @file\r |
2 | IA-32/x64 AsmFxSave()\r | |
3 | \r | |
2054fd13 | 4 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e1f414b6 | 6 | \r |
e1f414b6 | 7 | **/\r |
8 | \r | |
e1f414b6 | 9 | #include "BaseLibInternals.h"\r |
10 | \r | |
11 | /**\r | |
12 | Save the current floating point/SSE/SSE2 context to a buffer.\r | |
13 | \r | |
14 | Saves the current floating point/SSE/SSE2 state to the buffer specified by\r | |
15 | Buffer. Buffer must be aligned on a 16-byte boundary. This function is only\r | |
030cd1a2 | 16 | available on IA-32 and x64.\r |
e1f414b6 | 17 | \r |
18 | If Buffer is NULL, then ASSERT().\r | |
19 | If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r | |
20 | \r | |
127010dd | 21 | @param Buffer A pointer to a buffer to save the floating point/SSE/SSE2 context.\r |
e1f414b6 | 22 | \r |
23 | **/\r | |
24 | VOID\r | |
25 | EFIAPI\r | |
26 | AsmFxSave (\r | |
2f88bd3a | 27 | OUT IA32_FX_BUFFER *Buffer\r |
e1f414b6 | 28 | )\r |
29 | {\r | |
30 | ASSERT (Buffer != NULL);\r | |
38bbd3d9 | 31 | ASSERT (0 == ((UINTN)Buffer & 0xf));\r |
e1f414b6 | 32 | \r |
33 | InternalX86FxSave (Buffer);\r | |
34 | \r | |
35 | //\r | |
36 | // Mark one flag at end of Buffer, it will be check by AsmFxRestor()\r | |
37 | //\r | |
2f88bd3a | 38 | *(UINT32 *)(&Buffer->Buffer[sizeof (Buffer->Buffer) - 4]) = 0xAA5555AA;\r |
e1f414b6 | 39 | }\r |