sc_main.cc revision 13373:962c151f213c 
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include <vector>
31
32#include "base/trace.hh"
33
34#include "systemc/ext/systemc"
35
36class Printer : public sc_core::sc_module
37{
38  public:
39    sc_core::sc_in<const char *> input;
40
41    SC_CTOR(Printer)
42    {
43        SC_THREAD(print);
44    }
45
46    void
47    print()
48    {
49        int i = 0;
50        while (true) {
51            wait(input.value_changed_event());
52            DPRINTFN("Word %d: %s\n", i++, input.read());
53        }
54    }
55};
56
57class Feeder : public sc_core::sc_module
58{
59  public:
60    sc_core::sc_in<bool> clk;
61    sc_core::sc_out<const char *> output;
62
63    std::vector<const char *> strings;
64
65    SC_HAS_PROCESS(Feeder);
66    Feeder(sc_core::sc_module_name, std::vector<const char *> _strings) :
67        strings(_strings)
68    {
69        SC_THREAD(feed);
70        sensitive << clk.pos();
71    }
72
73    void
74    feed()
75    {
76        int i = 0;
77        while (true) {
78            wait();
79            if (i >= strings.size())
80                sc_core::sc_stop();
81            else
82                output = strings[i];
83            i++;
84        }
85    }
86};
87
88int
89sc_main(int argc, char *argv[])
90{
91    std::vector<const char *> strings;
92    for (int i = 0; i < argc; i++)
93        strings.push_back(argv[i]);
94
95    sc_core::sc_clock clk;
96    sc_core::sc_buffer<const char *> buf;
97
98    Feeder feeder("feeder", strings);
99    feeder.clk(clk);
100    feeder.output(buf);
101
102    Printer printer("printer");
103    printer.input(buf);
104
105    sc_core::sc_start();
106
107    return 0;
108}
109