diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/InterlockedDecrement.S')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/InterlockedDecrement.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/InterlockedDecrement.S b/MdePkg/Library/BaseLib/X64/InterlockedDecrement.S new file mode 100644 index 0000000000..59ca54bb9f --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/InterlockedDecrement.S @@ -0,0 +1,36 @@ +#------------------------------------------------------------------------------ +# +# 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: +# +# InterlockedDecrement.S +# +# Abstract: +# +# InterlockedDecrement function +# +# Notes: +# +#------------------------------------------------------------------------------ + + +#------------------------------------------------------------------------------ +# UINT32 +# EFIAPI +# InterlockedDecrement ( +# IN UINT32 *Value +# ); +#------------------------------------------------------------------------------ +.global _InternalSyncDecrement; +_InternalSyncDecrement: + lock decl (%rcx) + mov (%rcx), %eax + ret |