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
  10 #include "BaseLibInternals.h"
  11
  12
  13 /**
  14   Save the current floating point/SSE/SSE2 context to a buffer.
  15
  16   Saves the current floating point/SSE/SSE2 state to the buffer specified by
  17   Buffer. Buffer must be aligned on a 16-byte boundary. This function is only
  18   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 InternalX86FxSave (
  26   OUT IA32_FX_BUFFER *Buffer
  27   )
  28 {
  29   _asm {
  30     mov     eax, Buffer
  31     fxsave  [eax]
  32   }
  33 }
  34