data_gen.h

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

  data_gen.h -- 

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

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

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

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
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#include "define.h"

/******************************************************************************/
/***************************    data_gen Function        **********************/
/******************************************************************************/

SC_MODULE( DATA_GEN )
{
    SC_HAS_PROCESS( DATA_GEN );

    sc_in_clk clk;

  /*** Input and Output Ports ***/
  const sc_signal<bool>&        ready;
        signal_bool_vector8&            data;
        sc_signal<int>&         addr;
 
  /*** Constructor ***/
  DATA_GEN (   sc_module_name                   NAME,
                     sc_clock&                  TICK_N,
               const sc_signal<bool>&           READY,
                     signal_bool_vector8&       DATA,
                     sc_signal<int>&            ADDR   )
 
    : 
                ready (READY),
                data  (DATA),   // 8 bits
                addr  (ADDR)

    {
           clk (TICK_N);
        SC_CTHREAD( entry, clk.neg() );
    }
 
  /*** Call to Process Functionality ***/
  void entry();
 
};
 
void
DATA_GEN::entry()
{

  while(true) {

//  WAIT FOR POSEDGE OF ready 

    at_posedge(ready);

//  CHECK TO SEE IF THE END OF MEMORY HAS BEEN REACHED

    if(addr.read() > LIMIT) {           // if(addr > LIMIT)
        break; 
    }

//  WRITE VALUE OF MEMORY AT CURRENT ADDRESS TO data 
//  INCREMENT addr BY 1  

    data.write(mem[addr.read()]);       // data = mem[addr]
    addr.write(addr.read() + 1);        // addr = addr + 1 
  }

}