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.
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30 */ 31 32#include <cstring> 33#include <fstream> 34#include <list> 35#include <string> 36#include <vector> 37 38#include "base/misc.hh" 39#include "base/output.hh" 40#include "sim/builder.hh" 41#include "sim/host.hh" 42#include "sim/sim_events.hh" 43#include "sim/sim_object.hh" 44#include "sim/root.hh" 45 46using namespace std; 47 48Tick curTick = 0; 49ostream *outputStream; 50ostream *configStream; 51 52/// The simulated frequency of curTick. (This is only here for a short time) 53Tick ticksPerSecond; 54 55namespace Clock { 56/// The simulated frequency of curTick. (In ticks per second) 57Tick Frequency; 58 59namespace Float { 60double s; 61double ms; 62double us; 63double ns; 64double ps; 65 66double Hz; 67double kHz; 68double MHz; 69double GHZ; 70/* namespace Float */ } 71 72namespace Int { 73Tick s; 74Tick ms; 75Tick us; 76Tick ns; 77Tick ps; 78/* namespace Float */ } 79 80/* namespace Clock */ } 81 82 83// Dummy Object 84class Root : public SimObject 85{ 86 private: 87 Tick max_tick; 88 Tick progress_interval; 89 90 public: 91 Root(const std::string &name, Tick maxtick, Tick pi) 92 : SimObject(name), max_tick(maxtick), progress_interval(pi) 93 {} 94 95 virtual void startup(); 96}; 97 98void 99Root::startup() 100{ 101 if (max_tick != 0) 102 new SimExitEvent(curTick + max_tick, "reached maximum cycle count"); 103 104 if (progress_interval != 0) 105 new ProgressEvent(&mainEventQueue, progress_interval); 106} 107 108BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root) 109 110 Param<Tick> clock; 111 Param<Tick> max_tick; 112 Param<Tick> progress_interval; 113 Param<string> output_file; 114 115END_DECLARE_SIM_OBJECT_PARAMS(Root) 116 117BEGIN_INIT_SIM_OBJECT_PARAMS(Root) 118 119 INIT_PARAM(clock, "tick frequency"), 120 INIT_PARAM(max_tick, "maximum simulation time"), 121 INIT_PARAM(progress_interval, "print a progress message"), 122 INIT_PARAM(output_file, "file to dump simulator output to") 123 124END_INIT_SIM_OBJECT_PARAMS(Root) 125 126CREATE_SIM_OBJECT(Root) 127{ 128 static bool created = false; 129 if (created) 130 panic("only one root object allowed!"); 131 132 created = true; 133 134 outputStream = simout.find(output_file); 135 Root *root = new Root(getInstanceName(), max_tick, progress_interval); 136 137 using namespace Clock; 138 Frequency = clock; 139 Float::s = static_cast<double>(Frequency); 140 Float::ms = Float::s / 1.0e3; 141 Float::us = Float::s / 1.0e6; 142 Float::ns = Float::s / 1.0e9; 143 Float::ps = Float::s / 1.0e12; 144 145 Float::Hz = 1.0 / Float::s; 146 Float::kHz = 1.0 / Float::ms; 147 Float::MHz = 1.0 / Float::us; 148 Float::GHZ = 1.0 / Float::ns; 149 150 Int::s = Frequency; 151 Int::ms = Int::s / 1000; 152 Int::us = Int::ms / 1000; 153 Int::ns = Int::us / 1000; 154 Int::ps = Int::ns / 1000; 155 156 return root; 157} 158 159REGISTER_SIM_OBJECT("Root", Root)
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