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| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 15:57:14 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:41 +0800 |
| commit | 1760cf81e4b1847c6823ea3514a78dd120e19b6e (patch) | |
| tree | 64a874b14050fe24d3bbc1bc13cd293abf8ae018 /Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s | |
| parent | 7f05fa00f73038b425002566d3afe6c3ade2ccdb (diff) | |
| download | edk2-platforms-1760cf81e4b1847c6823ea3514a78dd120e19b6e.tar.xz | |
MdePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s')
| -rw-r--r-- | Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s b/Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s new file mode 100644 index 0000000000..31023847c9 --- /dev/null +++ b/Core/MdePkg/Library/BaseLib/Ipf/ReadCpuid.s @@ -0,0 +1,40 @@ +/// @file
+/// IPF specific AsmReadCpuid()function
+///
+/// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+/// 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.
+///
+/// Module Name: ReadCpuid.s
+///
+///
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadCpuid
+//
+// This routine is used to Reads the current value of Processor Identifier Register (CPUID).
+//
+// Arguments :
+//
+// On Entry : The 8-bit Processor Identifier Register index to read.
+//
+// Return Value: The current value of Processor Identifier Register specified by Index.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadCpuid, @function
+.proc AsmReadCpuid
+.regstk 1, 0, 0, 0
+
+AsmReadCpuid::
+ mov r8 = cpuid[in0];;
+ br.ret.dpnt b0;;
+.endp AsmReadCpuid
+
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