MdePkg/BaseLib: Support IA32 processors without CMOVx

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / ARShiftU64.asm

diff --git a/MdePkg/Library/BaseLib/Ia32/ARShiftU64.asm b/MdePkg/Library/BaseLib/Ia32/ARShiftU64.asm
index 8ee717d54a693c62bfc82de539de82c703464200..10f04c3875166780aa56122404d220b4bed7d6b2 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/ARShiftU64.asm
+++ b/MdePkg/Library/BaseLib/Ia32/ARShiftU64.asm
@@ -1,10 +1,10 @@
 ;------------------------------------------------------------------------------\r
 ;\r
-; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
+; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
 ; This program and the accompanying materials\r
 ; are licensed and made available under the terms and conditions of the BSD License\r
 ; which accompanies this distribution.  The full text of the license may be found at\r
-; http://opensource.org/licenses/bsd-license.php\r
+; http://opensource.org/licenses/bsd-license.php.\r
 ;\r
 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
@@ -36,8 +36,10 @@ InternalMathARShiftU64  PROC
     mov     eax, [esp + 8]\r
     cdq\r
     test    cl, 32\r
-    cmovz   edx, eax\r
-    cmovz   eax, [esp + 4]\r
+    jnz     @F\r
+    mov     edx, eax\r
+    mov     eax, [esp + 4]\r
+@@:    \r
     shrd    eax, edx, cl\r
     sar     edx, cl\r
     ret\r