diff options
| 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/LRotU64.S | |
| 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/LRotU64.S')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/LRotU64.S | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/LRotU64.S b/MdePkg/Library/BaseLib/Ia32/LRotU64.S index e9aeeb6387..ff450fa1f5 100644 --- a/MdePkg/Library/BaseLib/Ia32/LRotU64.S +++ b/MdePkg/Library/BaseLib/Ia32/LRotU64.S @@ -1,6 +1,6 @@ #------------------------------------------------------------------------------
#
-# 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
@@ -39,8 +39,10 @@ ASM_PFX(InternalMathLRotU64): rorl %cl, %ebx
shldl %cl, %ebx, %eax
testb $32, %cl # Count >= 32?
- cmovnz %eax, %ecx
- cmovnz %edx, %eax
- cmovnz %ecx, %edx
+ jz L0
+ movl %eax, %ecx
+ movl %edx, %eax
+ movl %ecx, %edx
+L0:
pop %ebx
ret
|