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diff --git a/src/systemc/tests/systemc/misc/user_guide/chpt4.1/stage2.h b/src/systemc/tests/systemc/misc/user_guide/chpt4.1/stage2.h
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+/*****************************************************************************
+
+  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
+  more contributor license agreements.  See the NOTICE file distributed
+  with this work for additional information regarding copyright ownership.
+  Accellera licenses this file to you under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with the
+  License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied.  See the License for the specific language governing
+  permissions and limitations under the License.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  stage2.h -- 
+
+  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+/* Filename stage2.h */
+/* This is the interface file for synchronous process `stage2' */
+
+#include "systemc.h"
+
+SC_MODULE( stage2 )
+{
+  SC_HAS_PROCESS( stage2 );
+
+  sc_in_clk clk;
+
+  const sc_signal<double>& sum; //input
+  const sc_signal<double>& diff; //input
+  sc_signal<double>& prod; //output
+  sc_signal<double>& quot; //output
+
+  //Constructor 
+  stage2(sc_module_name NAME,
+	 sc_clock& CLK,
+	 const sc_signal<double>& SUM,
+	 const sc_signal<double>& DIFF,
+	 sc_signal<double>& PROD,
+	 sc_signal<double>& QUOT)
+    : sum(SUM), diff(DIFF), prod(PROD), quot(QUOT)
+  {
+    clk(CLK);
+	SC_CTHREAD( entry, clk.pos() );
+  }
+
+  // Process functionality in member function below
+  void entry();
+};
+
+