112855Sgabeblack@google.com/*****************************************************************************
212855Sgabeblack@google.com
312855Sgabeblack@google.com  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
412855Sgabeblack@google.com  more contributor license agreements.  See the NOTICE file distributed
512855Sgabeblack@google.com  with this work for additional information regarding copyright ownership.
612855Sgabeblack@google.com  Accellera licenses this file to you under the Apache License, Version 2.0
712855Sgabeblack@google.com  (the "License"); you may not use this file except in compliance with the
812855Sgabeblack@google.com  License.  You may obtain a copy of the License at
912855Sgabeblack@google.com
1012855Sgabeblack@google.com    http://www.apache.org/licenses/LICENSE-2.0
1112855Sgabeblack@google.com
1212855Sgabeblack@google.com  Unless required by applicable law or agreed to in writing, software
1312855Sgabeblack@google.com  distributed under the License is distributed on an "AS IS" BASIS,
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1712855Sgabeblack@google.com
1812855Sgabeblack@google.com *****************************************************************************/
1912855Sgabeblack@google.com
2012855Sgabeblack@google.com/*****************************************************************************
2112855Sgabeblack@google.com
2212855Sgabeblack@google.com  ram.cpp --
2312855Sgabeblack@google.com
2412855Sgabeblack@google.com  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
2512855Sgabeblack@google.com
2612855Sgabeblack@google.com *****************************************************************************/
2712855Sgabeblack@google.com
2812855Sgabeblack@google.com/*****************************************************************************
2912855Sgabeblack@google.com
3012855Sgabeblack@google.com  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
3112855Sgabeblack@google.com  changes you are making here.
3212855Sgabeblack@google.com
3312855Sgabeblack@google.com      Name, Affiliation, Date:
3412855Sgabeblack@google.com  Description of Modification:
3512855Sgabeblack@google.com
3612855Sgabeblack@google.com *****************************************************************************/
3712855Sgabeblack@google.com
3812855Sgabeblack@google.com/* Filename ram.cc */
3912855Sgabeblack@google.com/* This is the implementation file for asynchronous process `ram' */
4012855Sgabeblack@google.com
4112855Sgabeblack@google.com#include "ram.h"
4212855Sgabeblack@google.com
4312855Sgabeblack@google.comvoid ram::entry()
4412855Sgabeblack@google.com{
4512855Sgabeblack@google.com  int address;
4612855Sgabeblack@google.com
4712855Sgabeblack@google.com  while (true) {
4812855Sgabeblack@google.com    do { wait(); } while (cs != true);
4912855Sgabeblack@google.com    address = addr.read().to_int();
5012855Sgabeblack@google.com    if (we.read() == true) { // Write operation
5112855Sgabeblack@google.com      wait(wait_cycles-1);
5212855Sgabeblack@google.com      memory[address] = datain.read().to_int();
5312855Sgabeblack@google.com    }
5412855Sgabeblack@google.com    else { // Read operation
5512855Sgabeblack@google.com      if (wait_cycles > 2)
5612855Sgabeblack@google.com	wait(wait_cycles-2); // Introduce delay needed
5712855Sgabeblack@google.com      dataout.write(memory[address]);
5812855Sgabeblack@google.com      wait();
5912855Sgabeblack@google.com    }
6012855Sgabeblack@google.com  }
6112855Sgabeblack@google.com} // end of entry function
6212855Sgabeblack@google.com
63