audk/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange3...

42 lines
1.3 KiB
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation
; 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.
;
; Module Name:
;
; InterlockedCompareExchange32.Asm
;
; Abstract:
;
; InterlockedCompareExchange32 function
;
; Notes:
;
;------------------------------------------------------------------------------
.code
;------------------------------------------------------------------------------
; UINT32
; EFIAPI
; InterlockedCompareExchange32 (
; IN UINT32 *Value,
; IN UINT32 CompareValue,
; IN UINT32 ExchangeValue
; );
;------------------------------------------------------------------------------
InternalSyncCompareExchange32 PROC
mov eax, edx
lock cmpxchg [rcx], r8d
ret
InternalSyncCompareExchange32 ENDP
END