core.hh

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/*
 * Copyright (c) 2006 The Regents of The University of Michigan
 * Copyright (c) 2013 Advanced Micro Devices, Inc.
 * Copyright (c) 2013 Mark D. Hill and David A. Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __SIM_CORE_HH__
#define __SIM_CORE_HH__

#include <string>

#include "base/types.hh"
#include "sim/eventq.hh"

inline Tick curTick() { return _curEventQueue->getCurTick(); }

const Tick retryTime = 1000;

namespace SimClock {
extern Tick Frequency; 

namespace Float {

extern double s;  
extern double ms; 
extern double us; 
extern double ns; 
extern double ps; 

extern double Hz;  
extern double kHz; 
extern double MHz; 
extern double GHz; 

} // namespace Float

namespace Int {
extern Tick s;  
extern Tick ms; 
extern Tick us; 
extern Tick ns; 
extern Tick ps; 

} // namespace Int
} // namespace SimClock
void fixClockFrequency();
bool clockFrequencyFixed();

void setClockFrequency(Tick ticksPerSecond);
Tick getClockFrequency(); // Ticks per second.

void setOutputDir(const std::string &dir);

class Callback;
void registerExitCallback(Callback *callback);
void doExitCleanup();

#endif /* __SIM_CORE_HH__ */