sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdePkg/BaseLib: Support IA32 processors without CMOVx

Browse Source 
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
This commit is contained in:
Michael Kinney
2015-04-27 19:38:39 +00:00
committed by mdkinney
parent 881813d7a9
commit 88a75d260c
16 changed files with 83 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
MdePkg/Library/BaseLib/Ia32/LShiftU64.c
View File

@@ -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
}