src/systemc/tests/systemc/misc/user_guide/chpt12.2/accessor.cpp

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

  accessor.cpp -- 

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

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

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  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
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/* Filename accessor.cc */
/* This is the implementation file for synchronous process 'accessor' */

#include "accessor.h"

void accessor::entry()
{
  int addr;
  int datao;
  int datai;

  addr = 10;
  datao = 0xdeadbeef;

  while (true) {
    // Write memory location first
    chip_select.write(true);
    write_enable.write(true);
    address.write(addr);
    dataout.write(datao);
    cout << "Accessor: Data Written = " << hex << datao << " at address "
         << hex << addr << endl;
    wait(memory_latency); // To make all the outputs appear at the interface

    // some process functionality not shown here during which chip
    // chip select is deasserted and bus is tristated
    chip_select.write(false);
    dataout.write(0);
    wait();

    // Now read memory location
    chip_select.write(true);
    write_enable.write(false);
    address.write(addr);
    wait(memory_latency); // For data to appear

    datai = datain.read().to_int();
    cout << "Accessor: Data Read = " << hex << datai << " from address "
         << hex << addr << endl;
    chip_select.write(false);
    wait();

    addr++;
    datao++;
  }
} // end of entry function