1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006 - 2016, 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 DEFAULT REL 25 SECTION .text 26 27;------------------------------------------------------------------------------ 28; UINT64 29; EFIAPI 30; InternalSyncCompareExchange64 ( 31; IN volatile UINT64 *Value, 32; IN UINT64 CompareValue, 33; IN UINT64 ExchangeValue 34; ); 35;------------------------------------------------------------------------------ 36global ASM_PFX(InternalSyncCompareExchange64) 37ASM_PFX(InternalSyncCompareExchange64): 38 mov rax, rdx 39 lock cmpxchg [rcx], r8 40 ret 41 42