diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S')
-rw-r--r-- | MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S b/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S index 2034b670f1..5e6e163527 100644 --- a/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S +++ b/MdePkg/Library/BaseLib/X64/InterlockedCompareExchange64.S @@ -1,39 +1,39 @@ -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006 - 2008, 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.S -# -# Abstract: -# -# InterlockedCompareExchange64 function -# -# Notes: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# UINT64 -# EFIAPI -# InterlockedCompareExchange64 ( -# IN UINT64 *Value, -# IN UINT64 CompareValue, -# IN UINT64 ExchangeValue -# ); -#------------------------------------------------------------------------------ -.global ASM_PFX(InternalSyncCompareExchange64) -.align 16 -ASM_PFX(InternalSyncCompareExchange64): - mov %rdx, %rax - lock cmpxchg %r8,(%rcx) - ret +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2008, 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.S
+#
+# Abstract:
+#
+# InterlockedCompareExchange64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# UINT64
+# EFIAPI
+# InterlockedCompareExchange64 (
+# IN UINT64 *Value,
+# IN UINT64 CompareValue,
+# IN UINT64 ExchangeValue
+# );
+#------------------------------------------------------------------------------
+.global ASM_PFX(InternalSyncCompareExchange64)
+.align 16
+ASM_PFX(InternalSyncCompareExchange64):
+ mov %rdx, %rax
+ lock cmpxchg %r8,(%rcx)
+ ret
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