diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-02 09:34:25 +0000 |
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| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-02 09:34:25 +0000 |
| commit | f1baef624fb7119c54c3389a2cd99b108ee08f0e (patch) | |
| tree | d713f9ecb9bcb40f62ace27aa135db8c4b0e86e0 /MdePkg/Library/BaseLib/X64/ReadTsc.S | |
| parent | 29b052646a5f5fa0b28cbe9ca6224541e688f251 (diff) | |
| download | edk2-platforms-f1baef624fb7119c54c3389a2cd99b108ee08f0e.tar.xz | |
1. Port X64, IPF and EBC arch for BaseLib
2. Port X64 arch codes for BaseMemoryLibRepStr and BaseMemoryLibSee2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2955 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/ReadTsc.S')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/ReadTsc.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/ReadTsc.S b/MdePkg/Library/BaseLib/X64/ReadTsc.S new file mode 100644 index 0000000000..776ffc2265 --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/ReadTsc.S @@ -0,0 +1,38 @@ +#------------------------------------------------------------------------------ +# +# 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: +# +# ReadTsc.S +# +# Abstract: +# +# AsmReadTsc function +# +# Notes: +# +#------------------------------------------------------------------------------ + + +#------------------------------------------------------------------------------ +# UINT64 +# EFIAPI +# AsmReadTsc ( +# VOID +# ); +#------------------------------------------------------------------------------ +.global _AsmReadTsc; +.align 16; +_AsmReadTsc: + rdtsc + shl $0x20, %rdx + or %rdx, %rax + ret |