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| author | Michael Kinney <michael.d.kinney@intel.com> | 2015-04-27 19:38:39 +0000 |
|---|---|---|
| committer | mdkinney <mdkinney@Edk2> | 2015-04-27 19:38:39 +0000 |
| commit | 88a75d260cadc67cc0edf6ad5f57241ed89a7d4b (patch) | |
| tree | 0684c5232be5941ba6ffd0a3f62cec8e1746bfa0 /MdePkg/Library/BaseLib/Ia32/LShiftU64.c | |
| parent | 881813d7a93d9009c873515b043c41c4554779e4 (diff) | |
| download | edk2-platforms-88a75d260cadc67cc0edf6ad5f57241ed89a7d4b.tar.xz | |
MdePkg/BaseLib: Support IA32 processors without CMOVx
Remove use of CMOVx instruction from IA32 assembly files in BaseLib.
This matches compiler flags for all supported C compilers.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17213 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/LShiftU64.c')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/LShiftU64.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/LShiftU64.c b/MdePkg/Library/BaseLib/Ia32/LShiftU64.c index 472fed1d29..9fb2532acf 100644 --- a/MdePkg/Library/BaseLib/Ia32/LShiftU64.c +++ b/MdePkg/Library/BaseLib/Ia32/LShiftU64.c @@ -1,7 +1,7 @@ /** @file
64-bit left shift function for IA-32.
- Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2015, 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
@@ -40,8 +40,10 @@ InternalMathLShiftU64 ( xor eax, eax
mov edx, dword ptr [Operand + 0]
test cl, 32 // Count >= 32?
- cmovz eax, edx
- cmovz edx, dword ptr [Operand + 4]
+ jnz L0
+ mov eax, edx
+ mov edx, dword ptr [Operand + 4]
+L0:
shld edx, eax, cl
shl eax, cl
}
|