MdePkg/Library/BaseLib/Ia32/FxSave.c

   1 /** @file
   2   AsmFxSave 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 #include "BaseLibInternals.h"
  10
  11 /**
  12   Save the current floating point/SSE/SSE2 context to a buffer.
  13
  14   Saves the current floating point/SSE/SSE2 state to the buffer specified by
  15   Buffer. Buffer must be aligned on a 16-byte boundary. This function is only
  16   available on IA-32 and x64.
  17
  18   @param  Buffer  The pointer to a buffer to save the floating point/SSE/SSE2 context.
  19
  20 **/
  21 VOID
  22 EFIAPI
  23 InternalX86FxSave (
  24   OUT IA32_FX_BUFFER  *Buffer
  25   )
  26 {
  27   _asm {
  28     mov     eax, Buffer
  29     fxsave  [eax]
  30   }
  31 }