--- /dev/null
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+# MultU64x32.asm
+#
+# Abstract:
+#
+# Calculate the product of a 64-bit integer and a 32-bit integer
+#
+#------------------------------------------------------------------------------
+
+ .386:
+ .code:
+
+.globl ASM_PFX(InternalMathMultU64x32)
+
+#------------------------------------------------------------------------------
+# UINT64
+# EFIAPI
+# InternalMathMultU64x32 (
+# IN UINT64 Multiplicand,
+# IN UINT32 Multiplier
+# );
+#------------------------------------------------------------------------------
+ASM_PFX(InternalMathMultU64x32):
+ movl 12(%esp), %ecx
+ movl %ecx, %eax
+ imull 8(%esp), %ecx
+ mull 0x4(%esp)
+ addl %ecx, %edx
+ ret