src/sim/core.hh

   1 /*
   2  * Copyright (c) 2006 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  * Authors: Nathan Binkert
  29  *          Steve Reinhardt
  30  */
  31
  32 #ifndef __SIM_CORE_HH__
  33 #define __SIM_CORE_HH__
  34
  35 #include <string>
  36
  37 #include "base/types.hh"
  38
  39 /// The universal simulation clock.
  40 extern Tick _curTick;
  41
  42 inline Tick curTick() { return _curTick; }
  43 inline void curTick(Tick newVal) { _curTick = newVal; }
  44
  45 const Tick retryTime = 1000;
  46
  47 namespace SimClock {
  48 /// The simulated frequency of curTick().
  49 extern Tick Frequency;
  50
  51 namespace Float {
  52 extern double s;
  53 extern double ms;
  54 extern double us;
  55 extern double ns;
  56 extern double ps;
  57
  58 extern double Hz;
  59 extern double kHz;
  60 extern double MHz;
  61 extern double GHZ;
  62 } // namespace Float
  63
  64 namespace Int {
  65 extern Tick s;
  66 extern Tick ms;
  67 extern Tick us;
  68 extern Tick ns;
  69 extern Tick ps;
  70 } // namespace Int
  71 } // namespace SimClock
  72
  73 void setClockFrequency(Tick ticksPerSecond);
  74
  75 void setOutputDir(const std::string &dir);
  76
  77 struct Callback;
  78 void registerExitCallback(Callback *callback);
  79 void doExitCleanup();
  80
  81 #endif /* __SIM_CORE_HH__ */