mirror of https://github.com/acidanthera/audk.git
42 lines
1.3 KiB
NASM
42 lines
1.3 KiB
NASM
;------------------------------------------------------------------------------
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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.Asm
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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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.code
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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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InternalSyncCompareExchange64 PROC
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mov rax, rdx
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lock cmpxchg [rcx], r8
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ret
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InternalSyncCompareExchange64 ENDP
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END
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