xref: /gem5/src/systemc/tests/systemc/misc/unit/data/datawidth_signed/promote_lost_carry/datawidth.cpp

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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
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  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
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/*****************************************************************************

  datawidth.cpp --

  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:

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                /*******************************************/
                /* Implementation Filename:  datawidth.cc  */
                /*******************************************/

#include "datawidth.h"

void
datawidth::entry()
{
  sc_signed   tmp_a (in1_width);
  sc_signed   tmp_b (in2_width);
  sc_signed   tmp_result (result_width);

  while (true) {

    // HANDSHAKING
    do { wait(); } while (ready != 1);

    // COMPUTATION
    tmp_a = in1.read();
    tmp_b = in2.read();
    tmp_result = tmp_a + tmp_b;

    // WRITE OUTPUT
    result.write(tmp_result);		// result = in1 + in2
    wait();
  }
}