Use capital S for GCC assembly. This enables pre-processing for PCD support.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@576 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Ia32/RShiftU64.S

@@ -0,0 +1,35 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, Intel Corporation
+# All rights reserved. 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
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+#   RShiftU64.asm
+#
+# Abstract:
+#
+#   64-bit logical right shift function for IA-32
+#
+#------------------------------------------------------------------------------
+
+    .686: 
+    .code: 
+
+.global _InternalMathRShiftU64
+_InternalMathRShiftU64:
+    movb    12(%esp),%cl
+    xorl    %edx,%edx
+    movl    8(%esp),%eax
+    testb   $32,%cl
+    cmovz   %eax, %edx
+    cmovz   0x4(%esp), %eax
+    shrdl   %cl,%edx,%eax
+    shr     %cl,%edx
+    ret