diff options
| -rwxr-xr-x | MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf | 1 | ||||
| -rw-r--r-- | MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm | 41 |
2 files changed, 42 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf index 853891bf08..388008ef45 100755 --- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf +++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf @@ -60,6 +60,7 @@ X64/InterlockedCompareExchange32.c | MSFT
X64/InterlockedCompareExchange16.c | MSFT
+ X64/InterlockedCompareExchange64.nasm| INTEL
X64/InterlockedCompareExchange64.asm | INTEL
X64/InterlockedCompareExchange32.asm | INTEL
X64/InterlockedCompareExchange16.asm | INTEL
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm new file mode 100644 index 0000000000..72c350a929 --- /dev/null +++ b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm @@ -0,0 +1,41 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; 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:
+;
+; InterlockedCompareExchange64.Asm
+;
+; Abstract:
+;
+; InterlockedCompareExchange64 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InterlockedCompareExchange64 (
+; IN UINT64 *Value,
+; IN UINT64 CompareValue,
+; IN UINT64 ExchangeValue
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncCompareExchange64)
+ASM_PFX(InternalSyncCompareExchange64):
+ mov rax, rdx
+ lock cmpxchg [rcx], r8
+ ret
+
|