mirror of https://github.com/acidanthera/audk.git
41 lines
1.3 KiB
ArmAsm
41 lines
1.3 KiB
ArmAsm
/// @file
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/// IPF specific AsmReadCpuid()function
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///
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/// Copyright (c) 2006, Intel Corporation
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/// All rights reserved. This program and the accompanying materials
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/// are licensed and made available under the terms and conditions of the BSD License
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/// which accompanies this distribution. The full text of the license may be found at
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/// http://opensource.org/licenses/bsd-license.php
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///
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/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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///
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/// Module Name: ReadCpuid.s
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///
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///
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//---------------------------------------------------------------------------------
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//++
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// AsmReadCpuid
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//
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// This routine is used to Reads the current value of Processor Identifier Register (CPUID).
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//
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// Arguments :
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//
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// On Entry : The 8-bit Processor Identifier Register index to read.
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//
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// Return Value: The current value of Processor Identifier Register specified by Index.
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//
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//--
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//----------------------------------------------------------------------------------
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.text
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.type AsmReadCpuid, @function
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.proc AsmReadCpuid
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.regstk 1, 0, 0, 0
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AsmReadCpuid::
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mov r8 = cpuid[in0];;
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br.ret.dpnt b0;;
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.endp AsmReadCpuid
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