diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf index 388008ef45..6f7f24b2c8 100755 --- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf +++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf @@ -62,6 +62,7 @@ X64/InterlockedCompareExchange64.nasm| INTEL X64/InterlockedCompareExchange64.asm | INTEL + X64/InterlockedCompareExchange32.nasm| INTEL X64/InterlockedCompareExchange32.asm | INTEL X64/InterlockedCompareExchange16.asm | INTEL diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm new file mode 100644 index 0000000000..4c8c8103d9 --- /dev/null +++ b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm @@ -0,0 +1,41 @@ +;------------------------------------------------------------------------------ +; +; 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: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; UINT32 +; EFIAPI +; InterlockedCompareExchange32 ( +; IN UINT32 *Value, +; IN UINT32 CompareValue, +; IN UINT32 ExchangeValue +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(InternalSyncCompareExchange32) +ASM_PFX(InternalSyncCompareExchange32): + mov eax, edx + lock cmpxchg [rcx], r8d + ret +