ram.cpp revision 12855:588919e0e4aa 
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3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
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10    http://www.apache.org/licenses/LICENSE-2.0
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12  Unless required by applicable law or agreed to in writing, software
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20/*****************************************************************************
21
22  ram.cpp --
23
24  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
25
26 *****************************************************************************/
27
28/*****************************************************************************
29
30  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
31  changes you are making here.
32
33      Name, Affiliation, Date:
34  Description of Modification:
35
36 *****************************************************************************/
37
38/* Filename ram.cc */
39/* This is the implementation file for asynchronous process `ram' */
40
41#include "ram.h"
42
43void ram::entry()
44{
45  int address;
46
47  while (true) {
48    do { wait(); } while (cs != true);
49    address = addr.read().to_int();
50    if (we.read() == true) { // Write operation
51      wait(wait_cycles-1);
52      memory[address] = datain.read().to_int();
53    }
54    else { // Read operation
55      if (wait_cycles > 2)
56	wait(wait_cycles-2); // Introduce delay needed
57      dataout.write(memory[address]);
58      wait();
59    }
60  }
61} // end of entry function
62
63