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[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / FxRestore.c

/** @file\r
  AsmFxRestore function\r
\r
  Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
//\r
// Include common header file for this module.\r
//\r
#include <BaseLibInternals.h>\r
\r
\r
/**\r
  Restores the current floating point/SSE/SSE2 context from a buffer.\r
\r
  Restores the current floating point/SSE/SSE2 state from the buffer specified\r
  by Buffer. Buffer must be aligned on a 16-byte boundary. This function is\r
  only available on IA-32 and X64.\r
\r
  @param  Buffer  Pointer to a buffer to save the floating point/SSE/SSE2 context.\r
\r
**/\r
VOID\r
EFIAPI\r
InternalX86FxRestore (\r
  IN CONST IA32_FX_BUFFER *Buffer\r
  )\r
{\r
  _asm {\r
    mov     eax, Buffer\r
    fxrstor [eax]\r
  }\r
}\r
\r