MdePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdePkg / Library / BaseLib / X86FxSave.c

/** @file\r
  IA-32/x64 AsmFxSave()\r
\r
  Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
\r
\r
#include "BaseLibInternals.h"\r
\r
/**\r
  Save the current floating point/SSE/SSE2 context to a buffer.\r
\r
  Saves the current floating point/SSE/SSE2 state to the buffer specified by\r
  Buffer. Buffer must be aligned on a 16-byte boundary. This function is only\r
  available on IA-32 and x64.\r
\r
  If Buffer is NULL, then ASSERT().\r
  If Buffer is not aligned on a 16-byte boundary, then ASSERT().\r
\r
  @param  Buffer  A pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
EFIAPI\r
AsmFxSave (\r
  OUT     IA32_FX_BUFFER            *Buffer\r
  )\r
{\r
  ASSERT (Buffer != NULL);\r
  ASSERT (0 == ((UINTN)Buffer & 0xf));\r
\r
  InternalX86FxSave (Buffer);\r
\r
  //\r
  // Mark one flag at end of Buffer, it will be check by AsmFxRestor()\r
  //\r
  *(UINT32 *) (&Buffer->Buffer[sizeof (Buffer->Buffer) - 4]) = 0xAA5555AA;\r
}\r