xref: /gem5/src/systemc/tests/systemc/misc/user_guide/param_model/param.cpp

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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  with this work for additional information regarding copyright ownership.
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  (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
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  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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/*****************************************************************************

  param.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:

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

		/***************************************/
		/* Implementation Filename:  param.cc  */
		/***************************************/

#include "param.h"

void param::entry()
{
  sc_unsigned  	sum1 (data_width + 1);
  sc_unsigned  	a1   (data_width);
  sc_unsigned  	b1   (data_width);
  bool      	c1;

// RESET INIT
  sum.write(0);
  co.write(0);
  wait();

  while(true) {	 // MAIN LOOP

  // HANDSHAKE
    done.write(0);
    do { wait(); } while (ready != 1);

  // COMPUTATION
    a1 = a.read();
    b1 = b.read();
    c1 = cin.read();

    sum1 = a1 + b1 + c1;

    // sum.write( sum1.range(data_width-1,0) );
    sc_unsigned tmp( data_width );
    tmp = sum1.range( data_width - 1, 0 );
    sum.write( tmp );
    co.write( sum1[data_width] );
    // wait();
    wait( 2 );

    cout  << sc_time_stamp() << "\t : "
          << a1 << " + "
	  << b1 << " + "
	  << cin << " = " << sum1
	  << "\t => carry = " << co
	  << " sum = " << sum
	  << endl;

  // HANDSHAKE
    done.write(1);
    wait();

  }

}