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git.proxmox.com Git - mirror_edk2.git/blob - UefiCpuPkg/Include/Library/UefiCpuLib.h
2 Public header file for UEFI CPU library class.
4 This library class defines some routines that are generic for IA32 family CPU
5 to be UEFI specification compliant.
7 Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
8 SPDX-License-Identifier: BSD-2-Clause-Patent
12 #ifndef __UEFI_CPU_LIB_H__
13 #define __UEFI_CPU_LIB_H__
18 Initializes floating point units for requirement of UEFI specification.
20 This function initializes floating-point control word to 0x027F (all exceptions
21 masked,double-precision, round-to-nearest) and multimedia-extensions control word
22 (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
23 for masked underflow).
28 InitializeFloatingPointUnits (