diff options
| author | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-04-21 22:54:32 +0000 |
|---|---|---|
| committer | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-04-21 22:54:32 +0000 |
| commit | 878ddf1fc3540a715f63594ed22b6929e881afb4 (patch) | |
| tree | c56c44dac138137b510e1fba7c3efe5e4d84bea2 /MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s | |
| download | edk2-platforms-878ddf1fc3540a715f63594ed22b6929e881afb4.tar.xz | |
Initial import.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s')
| -rw-r--r-- | MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s b/MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s new file mode 100644 index 0000000000..abc51e905b --- /dev/null +++ b/MdePkg/Library/BaseLib/ia32/InterlockedCompareExchange64.s @@ -0,0 +1,52 @@ +#------------------------------------------------------------------------------
+#
+# 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:
+#
+# InterlockedCompareExchange64.Asm
+#
+# Abstract:
+#
+# InterlockedCompareExchange64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+
+
+
+#------------------------------------------------------------------------------
+# UINT64
+# EFIAPI
+# InterlockedCompareExchange64 (
+# IN UINT64 *Value,
+# IN UINT64 CompareValue,
+# IN UINT64 ExchangeValue
+# );
+#------------------------------------------------------------------------------
+.global _InterlockedCompareExchange64
+ push %esi
+ push %ebx
+ movl 12(%esp),%esi
+ movl 16(%esp),%eax
+ movl 20(%esp),%edx
+ movl 24(%esp),%ebx
+ movl 28(%esp),%ecx
+ lock
+ cmpxchg8b (%esi)
+ pop %ebx
+ pop %esi
+ ret
+
+
+
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