1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 ; This program and the accompanying materials 5 ; are licensed and made available under the terms and conditions of the BSD License 6 ; which accompanies this distribution. The full text of the license may be found at 7 ; http://opensource.org/licenses/bsd-license.php 8 ; 9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 ; 12 ; Module Name: 13 ; 14 ; InterlockedCompareExchange64.Asm 15 ; 16 ; Abstract: 17 ; 18 ; InterlockedCompareExchange64 function 19 ; 20 ; Notes: 21 ; 22 ;------------------------------------------------------------------------------ 23 24 .586P 25 .model flat,C 26 .code 27 28 ;------------------------------------------------------------------------------ 29 ; UINT64 30 ; EFIAPI 31 ; InternalSyncCompareExchange64 ( 32 ; IN UINT64 *Value, 33 ; IN UINT64 CompareValue, 34 ; IN UINT64 ExchangeValue 35 ; ); 36 ;------------------------------------------------------------------------------ 37 InternalSyncCompareExchange64 PROC USES esi ebx 38 mov esi, [esp + 12] 39 mov eax, [esp + 16] 40 mov edx, [esp + 20] 41 mov ebx, [esp + 24] 42 mov ecx, [esp + 28] 43 lock cmpxchg8b qword ptr [esi] 44 ret 45 InternalSyncCompareExchange64 ENDP 46 47 END 48
