1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR> 4 ; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR> 5 ; This program and the accompanying materials 6 ; are licensed and made available under the terms and conditions of the BSD License 7 ; which accompanies this distribution. The full text of the license may be found at 8 ; http://opensource.org/licenses/bsd-license.php. 9 ; 10 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 ; 13 ; Module Name: 14 ; 15 ; InterlockedCompareExchange16.Asm 16 ; 17 ; Abstract: 18 ; 19 ; InterlockedCompareExchange16 function 20 ; 21 ; Notes: 22 ; 23 ;------------------------------------------------------------------------------ 24 25 SECTION .text 26 27 ;------------------------------------------------------------------------------ 28 ; UINT16 29 ; EFIAPI 30 ; InternalSyncCompareExchange16 ( 31 ; IN volatile UINT16 *Value, 32 ; IN UINT16 CompareValue, 33 ; IN UINT16 ExchangeValue 34 ; ); 35 ;------------------------------------------------------------------------------ 36 global ASM_PFX(InternalSyncCompareExchange16) 37 ASM_PFX(InternalSyncCompareExchange16): 38 mov ecx, [esp + 4] 39 mov ax, [esp + 8] 40 mov dx, [esp + 12] 41 lock cmpxchg [ecx], dx 42 ret 43 44
