diff options
| author | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-12-15 08:27:17 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-12-15 08:27:17 +0000 |
| commit | c577049aafd5d00f96fe6d136e442da8b7520242 (patch) | |
| tree | 90aa447ee6129b3a136651c71c557b1824eea952 /MdePkg/Library/BaseLib/Ia32/Thunk16.asm | |
| parent | cb40609c754e8ddd351b8f01a60f8097ed0b82dc (diff) | |
| download | edk2-platforms-c577049aafd5d00f96fe6d136e442da8b7520242.tar.xz | |
Fix the issue to clear the high 16-bit of EAX before use it Thunk code.
This patch updates MdePkg BaseLib, EcpPkg EdkIIGlueLib BaseLib and ThunkLib.
Signed-off-by: lgao4
Reviewed-by: rsun3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12876 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/Thunk16.asm')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/Thunk16.asm | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/Thunk16.asm b/MdePkg/Library/BaseLib/Ia32/Thunk16.asm index 31f9254ad5..6df0a4a46a 100644 --- a/MdePkg/Library/BaseLib/Ia32/Thunk16.asm +++ b/MdePkg/Library/BaseLib/Ia32/Thunk16.asm @@ -3,7 +3,7 @@ ;------------------------------------------------------------------------------
;
-; Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2006 - 2011, 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
@@ -109,7 +109,8 @@ _ThunkAttr DD ? or al, 2
out 92h, al ; deactivate A20M#
@2:
- mov ax, ss
+ xor ax, ax ; xor eax, eax
+ mov eax, ss ; mov ax, ss
DB 67h
lea bp, [esp + sizeof (IA32_REGS)]
;
|