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system76-edk2/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.asm
2013-01-28 11:51:15 +00:00

36 lines
907 B
NASM

//
// Copyright (c) 2012, ARM Limited. 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.
//
//
#include <Library/ArmLib.h>
INCLUDE AsmMacroIoLib.inc
EXPORT ArmPlatformGetCorePosition
PRESERVE8
AREA ArmPlatformNullHelper, CODE, READONLY
//UINTN
//ArmPlatformGetCorePosition (
// IN UINTN MpId
// );
ArmPlatformGetCorePosition FUNCTION
and r1, r0, #ARM_CORE_MASK
and r0, r0, #ARM_CLUSTER_MASK
add r0, r1, r0, LSR #7
bx lr
ENDFUNC
END