sim/universe.cc

   1 /*
   2  * Copyright (c) 2003 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 <list>
  30 #include <string>
  31 #include <vector>
  32
  33 #include "sim/universe.hh"
  34 #include "sim/host.hh"
  35 #include "sim/param.hh"
  36
  37 using namespace std;
  38
  39 Tick curTick = 0;
  40 Tick ticksPerSecond;
  41 double __ticksPerMS;
  42 double __ticksPerUS;
  43 double __ticksPerNS;
  44
  45 class UniverseParamContext : public ParamContext
  46 {
  47   public:
  48     UniverseParamContext(const string &is) : ParamContext(is) {}
  49     void checkParams();
  50 };
  51
  52 UniverseParamContext universe("Universe");
  53
  54 Param<Tick> universe_freq(&universe, "frequency", "tick frequency",
  55                           200000000);
  56
  57 void
  58 UniverseParamContext::checkParams()
  59 {
  60     ticksPerSecond = universe_freq;
  61     double freq = double(ticksPerSecond);
  62     __ticksPerMS = freq / 1.0e3;
  63     __ticksPerUS = freq / 1.0e6;
  64     __ticksPerNS = freq / 1.0e9;
  65 }