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/MultU64x64.S

@@ -0,0 +1,49 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#   MultU64x64.asm
+#
+# Abstract:
+#
+#   Calculate the product of a 64-bit integer and another 64-bit integer
+#
+#------------------------------------------------------------------------------
+
+
+
+     
+
+.global _MultS64x64
+_MultS64x64: 
+    #
+    # MultS64x32 shares the same implementation with _MultU64x32, and thus no
+    # code inside this function.
+    #
+
+
+.global _MultU64x64
+    push    %ebx
+    movl    8(%esp),%ebx
+    movl    16(%esp),%edx
+    movl    %ebx,%ecx
+    movl    %edx,%eax
+    imull   20(%esp),%ebx
+    imull   12(%esp),%edx
+    addl    %edx,%ebx
+    mull    %ecx
+    addl    %ebx,%edx
+    pop     %ebx
+    ret
+
+
+