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| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-11-25 04:25:02 +0000 |
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| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-11-25 04:25:02 +0000 |
| commit | 989322c384b180520803654acb69f53de83e45d6 (patch) | |
| tree | 168ef559295a032111223e124fba82c017edc16e /UefiCpuPkg/Include | |
| parent | 77882e266e58eea54ae7318365ef7cb9d117d6c4 (diff) | |
| download | edk2-989322c384b180520803654acb69f53de83e45d6.tar.gz edk2-989322c384b180520803654acb69f53de83e45d6.tar.bz2 edk2-989322c384b180520803654acb69f53de83e45d6.zip | |
Introduce UefiCpuLib library class in UefiCpuPkg and add one instance of BaseUefiCpuLib. The major purpose of this library class / instance is to provide some routines that are generic for IA32 family CPU
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9480 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg/Include')
| -rw-r--r-- | UefiCpuPkg/Include/Library/UefiCpuLib.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Library/UefiCpuLib.h b/UefiCpuPkg/Include/Library/UefiCpuLib.h new file mode 100644 index 0000000000..597c194249 --- /dev/null +++ b/UefiCpuPkg/Include/Library/UefiCpuLib.h @@ -0,0 +1,38 @@ +/** @file
+ Public header file for UEFI CPU library class.
+
+ This library class defines some routines that are generic for IA32 family CPU
+ to be UEFI specification compliant.
+
+ Copyright (c) 2009, Intel Corporation
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __UEFI_CPU_LIB_H__
+#define __UEFI_CPU_LIB_H__
+
+
+
+/**
+ Initializes floating point units for requirement of UEFI specification.
+
+ This function initializes floating-point control word to 0x027F (all exceptions
+ masked,double-precision, round-to-nearest) and multimedia-extensions control word
+ (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
+ for masked underflow).
+
+**/
+VOID
+EFIAPI
+InitializeFloatingPointUnits (
+ VOID
+ );
+
+#endif
|