root.cc revision 1609 
1/*
2 * Copyright (c) 2002-2004 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/universe.hh"
41
42using namespace std;
43
44Tick curTick = 0;
45bool fullSystem;
46ostream *outputStream;
47ostream *configStream;
48
49/// The simulated frequency of curTick. (This is only here for a short time)
50Tick ticksPerSecond;
51
52namespace Clock {
53/// The simulated frequency of curTick. (In ticks per second)
54Tick Frequency;
55
56namespace Float {
57double s;
58double ms;
59double us;
60double ns;
61double ps;
62
63double Hz;
64double kHz;
65double MHz;
66double GHZ;
67/* namespace Float */ }
68
69namespace Int {
70Tick s;
71Tick ms;
72Tick us;
73Tick ns;
74Tick ps;
75/* namespace Float */ }
76
77/* namespace Clock */ }
78
79
80// Dummy Object
81class Root : public SimObject
82{
83  public:
84    Root(const std::string &name) : SimObject(name) {}
85};
86
87BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
88
89    Param<bool> full_system;
90    Param<Tick> frequency;
91    Param<string> output_file;
92
93END_DECLARE_SIM_OBJECT_PARAMS(Root)
94
95BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
96
97    INIT_PARAM(full_system, "full system simulation"),
98    INIT_PARAM(frequency, "tick frequency"),
99    INIT_PARAM(output_file, "file to dump simulator output to")
100
101END_INIT_SIM_OBJECT_PARAMS(Root)
102
103CREATE_SIM_OBJECT(Root)
104{
105    static bool created = false;
106    if (created)
107        panic("only one root object allowed!");
108
109    created = true;
110    fullSystem = full_system;
111
112#ifdef FULL_SYSTEM
113    if (!fullSystem)
114        panic("FULL_SYSTEM compiled and configuration not full_system");
115#else
116    if (fullSystem)
117        panic("FULL_SYSTEM not compiled but configuration is full_system");
118#endif
119
120    outputStream = simout.find(output_file);
121    Root *root = new Root(getInstanceName());
122
123    ticksPerSecond = frequency;
124
125    using namespace Clock;
126    Frequency = frequency;
127    Float::s = static_cast<double>(Frequency);
128    Float::ms = Float::s / 1.0e3;
129    Float::us = Float::s / 1.0e6;
130    Float::ns = Float::s / 1.0e9;
131    Float::ps = Float::s / 1.0e12;
132
133    Float::Hz  = 1.0 / Float::s;
134    Float::kHz = 1.0 / Float::ms;
135    Float::MHz = 1.0 / Float::us;
136    Float::GHZ = 1.0 / Float::ns;
137
138    Int::s  = Frequency;
139    Int::ms = Int::s / 1000;
140    Int::us = Int::ms / 1000;
141    Int::ns = Int::us / 1000;
142    Int::ps = Int::ns / 1000;
143
144    return root;
145}
146
147REGISTER_SIM_OBJECT("Root", Root)
148