core.cc revision 7064
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#include <iostream> 33#include <string> 34 35#include "base/callback.hh" 36#include "base/output.hh" 37#include "sim/core.hh" 38 39using namespace std; 40 41Tick curTick = 0; 42 43namespace SimClock { 44/// The simulated frequency of curTick. (In ticks per second) 45Tick Frequency; 46 47namespace Float { 48double s; 49double ms; 50double us; 51double ns; 52double ps; 53 54double Hz; 55double kHz; 56double MHz; 57double GHZ; 58/* namespace Float */ } 59 60namespace Int { 61Tick s; 62Tick ms; 63Tick us; 64Tick ns; 65Tick ps; 66/* namespace Float */ } 67 68/* namespace SimClock */ } 69 70void 71setClockFrequency(Tick ticksPerSecond) 72{ 73 using namespace SimClock; 74 Frequency = ticksPerSecond; 75 Float::s = static_cast<double>(Frequency); 76 Float::ms = Float::s / 1.0e3; 77 Float::us = Float::s / 1.0e6; 78 Float::ns = Float::s / 1.0e9; 79 Float::ps = Float::s / 1.0e12; 80 81 Float::Hz = 1.0 / Float::s; 82 Float::kHz = 1.0 / Float::ms; 83 Float::MHz = 1.0 / Float::us; 84 Float::GHZ = 1.0 / Float::ns; 85 86 Int::s = Frequency; 87 Int::ms = Int::s / 1000; 88 Int::us = Int::ms / 1000; 89 Int::ns = Int::us / 1000; 90 Int::ps = Int::ns / 1000; 91 92} 93 94void 95setOutputDir(const string &dir) 96{ 97 simout.setDirectory(dir); 98} 99 100/** 101 * Queue of C++ callbacks to invoke on simulator exit. 102 */ 103inline CallbackQueue & 104exitCallbacks() 105{ 106 static CallbackQueue theQueue; 107 return theQueue; 108} 109 110/** 111 * Register an exit callback. 112 */ 113void 114registerExitCallback(Callback *callback) 115{ 116 exitCallbacks().add(callback); 117} 118 119/** 120 * Do C++ simulator exit processing. Exported to SWIG to be invoked 121 * when simulator terminates via Python's atexit mechanism. 122 */ 123void 124doExitCleanup() 125{ 126 exitCallbacks().process(); 127 exitCallbacks().clear(); 128 129 cout.flush(); 130} 131 132