UefiCpuPkg/Include/Library/UefiCpuLib.h

   1 /** @file
   2   Public header file for UEFI CPU library class.
   3
   4   This library class defines some routines that are generic for IA32 family CPU
   5   to be UEFI specification compliant.
   6
   7   Copyright (c) 2009, Intel Corporation
   8   All rights reserved. This program and the accompanying materials
   9   are licensed and made available under the terms and conditions of the BSD License
  10   which accompanies this distribution.  The full text of the license may be found at
  11   http://opensource.org/licenses/bsd-license.php
  12
  13   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17
  18 #ifndef __UEFI_CPU_LIB_H__
  19 #define __UEFI_CPU_LIB_H__
  20
  21
  22
  23 /**
  24   Initializes floating point units for requirement of UEFI specification.
  25
  26   This function initializes floating-point control word to 0x027F (all exceptions
  27   masked,double-precision, round-to-nearest) and multimedia-extensions control word
  28   (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
  29   for masked underflow).
  30
  31 **/
  32 VOID
  33 EFIAPI
  34 InitializeFloatingPointUnits (
  35   VOID
  36   );
  37
  38 #endif