root.cc revision 1762 
1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <cstring>
30#include <fstream>
31#include <list>
32#include <string>
33#include <vector>
34
35#include "base/misc.hh"
36#include "base/output.hh"
37#include "sim/builder.hh"
38#include "sim/host.hh"
39#include "sim/sim_object.hh"
40#include "sim/root.hh"
41
42using namespace std;
43
44Tick curTick = 0;
45ostream *outputStream;
46ostream *configStream;
47
48/// The simulated frequency of curTick. (This is only here for a short time)
49Tick ticksPerSecond;
50
51namespace Clock {
52/// The simulated frequency of curTick. (In ticks per second)
53Tick Frequency;
54
55namespace Float {
56double s;
57double ms;
58double us;
59double ns;
60double ps;
61
62double Hz;
63double kHz;
64double MHz;
65double GHZ;
66/* namespace Float */ }
67
68namespace Int {
69Tick s;
70Tick ms;
71Tick us;
72Tick ns;
73Tick ps;
74/* namespace Float */ }
75
76/* namespace Clock */ }
77
78
79// Dummy Object
80class Root : public SimObject
81{
82  public:
83    Root(const std::string &name) : SimObject(name) {}
84};
85
86BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
87
88    Param<Tick> clock;
89    Param<string> output_file;
90
91END_DECLARE_SIM_OBJECT_PARAMS(Root)
92
93BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
94
95    INIT_PARAM(clock, "tick frequency"),
96    INIT_PARAM(output_file, "file to dump simulator output to")
97
98END_INIT_SIM_OBJECT_PARAMS(Root)
99
100CREATE_SIM_OBJECT(Root)
101{
102    static bool created = false;
103    if (created)
104        panic("only one root object allowed!");
105
106    created = true;
107
108    outputStream = simout.find(output_file);
109    Root *root = new Root(getInstanceName());
110
111    using namespace Clock;
112    Frequency = clock;
113    Float::s = static_cast<double>(Frequency);
114    Float::ms = Float::s / 1.0e3;
115    Float::us = Float::s / 1.0e6;
116    Float::ns = Float::s / 1.0e9;
117    Float::ps = Float::s / 1.0e12;
118
119    Float::Hz  = 1.0 / Float::s;
120    Float::kHz = 1.0 / Float::ms;
121    Float::MHz = 1.0 / Float::us;
122    Float::GHZ = 1.0 / Float::ns;
123
124    Int::s  = Frequency;
125    Int::ms = Int::s / 1000;
126    Int::us = Int::ms / 1000;
127    Int::ns = Int::us / 1000;
128    Int::ps = Int::ns / 1000;
129
130    return root;
131}
132
133REGISTER_SIM_OBJECT("Root", Root)
134