mirror of https://github.com/acidanthera/audk.git
40 lines
1.3 KiB
ArmAsm
40 lines
1.3 KiB
ArmAsm
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#------------------------------------------------------------------------------
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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:
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#
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# InterlockedCompareExchange64.S
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#
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# Abstract:
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#
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# InterlockedCompareExchange64 function
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#
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# Notes:
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#
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#------------------------------------------------------------------------------
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#------------------------------------------------------------------------------
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# UINT64
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# EFIAPI
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# InterlockedCompareExchange64 (
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# IN UINT64 *Value,
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# IN UINT64 CompareValue,
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# IN UINT64 ExchangeValue
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# );
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#------------------------------------------------------------------------------
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.global _InternalSyncCompareExchange64;
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.align 16;
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_InternalSyncCompareExchange64:
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mov %rsi, %rax
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lock cmpxchg %rdx,(%rdi)
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ret
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