xref: /gem5/src/systemc/tests/systemc/misc/user_guide/chpt12.2/ram.cpp

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

  ram.cpp --

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

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

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/* Filename ram.cc */
/* This is the implementation file for asynchronous process `ram' */

#include "ram.h"

void ram::entry()
{
  int address;

  while (true) {
    do { wait(); } while (cs != true);
    address = addr.read().to_int();
    if (we.read() == true) { // Write operation
      wait(wait_cycles-1);
      memory[address] = datain.read().to_int();
    }
    else { // Read operation
      if (wait_cycles > 2)
	wait(wait_cycles-2); // Introduce delay needed
      dataout.write(memory[address]);
      wait();
    }
  }
} // end of entry function