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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,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
* Steve Reinhardt
*/
#ifndef __SIM_CORE_HH__
#define __SIM_CORE_HH__
/** @file This header provides some core simulator functionality such as time
* information, output directory and exit events
*/
#include <string>
#include "base/types.hh"
#include "sim/eventq.hh"
/// The universal simulation clock.
inline Tick curTick() { return _curEventQueue->getCurTick(); }
const Tick retryTime = 1000;
/// These are variables that are set based on the simulator frequency
///@{
namespace SimClock {
extern Tick Frequency; ///< The number of ticks that equal one second
namespace Float {
/** These variables equal the number of ticks in the unit of time they're
* named after in a double.
* @{
*/
extern double s; ///< second
extern double ms; ///< millisecond
extern double us; ///< microsecond
extern double ns; ///< nanosecond
extern double ps; ///< picosecond
/** @} */
/** These variables the inverse of above. They're all < 1.
* @{
*/
extern double Hz; ///< Hz
extern double kHz; ///< kHz
extern double MHz; ///< MHz
extern double GHz; ///< GHz
/** @}*/
} // namespace Float
/** These variables equal the number of ticks in the unit of time they're
* named after in a 64 bit integer.
*
* @{
*/
namespace Int {
extern Tick s; ///< second
extern Tick ms; ///< millisecond
extern Tick us; ///< microsecond
extern Tick ns; ///< nanosecond
extern Tick ps; ///< picosecond
/** @} */
} // 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__ */
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