mirror of https://github.com/acidanthera/audk.git
41 lines
1.3 KiB
ArmAsm
41 lines
1.3 KiB
ArmAsm
/// @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
|
|
|