MdePkg/Library/BaseLib/Ia32/FxRestore.c

   1 /** @file
   2   AsmFxRestore function
   3
   4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9
  10 #include "BaseLibInternals.h"
  11
  12
  13 /**
  14   Restores the current floating point/SSE/SSE2 context from a buffer.
  15
  16   Restores the current floating point/SSE/SSE2 state from the buffer specified
  17   by Buffer. Buffer must be aligned on a 16-byte boundary. This function is
  18   only available on IA-32 and x64.
  19
  20   @param  Buffer  The pointer to a buffer to save the floating point/SSE/SSE2 context.
  21
  22 **/
  23 VOID
  24 EFIAPI
  25 InternalX86FxRestore (
  26   IN CONST IA32_FX_BUFFER *Buffer
  27   )
  28 {
  29   _asm {
  30     mov     eax, Buffer
  31     fxrstor [eax]
  32   }
  33 }
  34