core.hh revision 9356
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/** @file This header provides some core simulator functionality such as time 36 * information, output directory and exit events 37 */ 38 39#include <string> 40 41#include "base/types.hh" 42#include "sim/eventq.hh" 43 44/// The universal simulation clock. 45inline Tick curTick() { return mainEventQueue.getCurTick(); } 46 47const Tick retryTime = 1000; 48 49/// These are variables that are set based on the simulator frequency 50///@{ 51namespace SimClock { 52extern Tick Frequency; ///< The number of ticks that equal one second 53 54namespace Float { 55 56/** These variables equal the number of ticks in the unit of time they're 57 * named after in a double. 58 * @{ 59 */ 60extern double s; ///< second 61extern double ms; ///< millisecond 62extern double us; ///< microsecond 63extern double ns; ///< nanosecond 64extern double ps; ///< picosecond 65/** @} */ 66 67/** These variables the inverse of above. They're all < 1. 68 * @{ 69 */ 70extern double Hz; ///< Hz 71extern double kHz; ///< kHz 72extern double MHz; ///< MHz 73extern double GHZ; ///< GHz 74/** @}*/ 75} // namespace Float 76 77/** These variables equal the number of ticks in the unit of time they're 78 * named after in a 64 bit integer. 79 * 80 * @{ 81 */ 82namespace Int { 83extern Tick s; ///< second 84extern Tick ms; ///< millisecond 85extern Tick us; ///< microsecond 86extern Tick ns; ///< nanosecond 87extern Tick ps; ///< picosecond 88/** @} */ 89} // namespace Int 90} // namespace SimClock 91/** @} */ 92void setClockFrequency(Tick ticksPerSecond); 93 94void setOutputDir(const std::string &dir); 95 96class Callback; 97void registerExitCallback(Callback *callback); 98void doExitCleanup(); 99 100#endif /* __SIM_CORE_HH__ */ 101