112855Sgabeblack@google.com/***************************************************************************** 212855Sgabeblack@google.com 312855Sgabeblack@google.com Licensed to Accellera Systems Initiative Inc. (Accellera) under one or 412855Sgabeblack@google.com more contributor license agreements. See the NOTICE file distributed 512855Sgabeblack@google.com with this work for additional information regarding copyright ownership. 612855Sgabeblack@google.com Accellera licenses this file to you under the Apache License, Version 2.0 712855Sgabeblack@google.com (the "License"); you may not use this file except in compliance with the 812855Sgabeblack@google.com License. You may obtain a copy of the License at 912855Sgabeblack@google.com 1012855Sgabeblack@google.com http://www.apache.org/licenses/LICENSE-2.0 1112855Sgabeblack@google.com 1212855Sgabeblack@google.com Unless required by applicable law or agreed to in writing, software 1312855Sgabeblack@google.com distributed under the License is distributed on an "AS IS" BASIS, 1412855Sgabeblack@google.com WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 1512855Sgabeblack@google.com implied. See the License for the specific language governing 1612855Sgabeblack@google.com permissions and limitations under the License. 1712855Sgabeblack@google.com 1812855Sgabeblack@google.com *****************************************************************************/ 1912855Sgabeblack@google.com 2012855Sgabeblack@google.com/***************************************************************************** 2112855Sgabeblack@google.com 2212855Sgabeblack@google.com pulse.cpp -- Implementation of the pulse generator. 2312855Sgabeblack@google.com 2412855Sgabeblack@google.com Original Author: Ali Dasdan, Synopsys, Inc. 2512855Sgabeblack@google.com 2612855Sgabeblack@google.com *****************************************************************************/ 2712855Sgabeblack@google.com 2812855Sgabeblack@google.com/***************************************************************************** 2912855Sgabeblack@google.com 3012855Sgabeblack@google.com MODIFICATION LOG - modifiers, enter your name, affiliation, date and 3112855Sgabeblack@google.com changes you are making here. 3212855Sgabeblack@google.com 3312855Sgabeblack@google.com Name, Affiliation, Date: 3412855Sgabeblack@google.com Description of Modification: 3512855Sgabeblack@google.com 3612855Sgabeblack@google.com *****************************************************************************/ 3712855Sgabeblack@google.com 3812855Sgabeblack@google.com// $Log: pulse.cpp,v $ 3912855Sgabeblack@google.com// Revision 1.1.1.1 2006/12/15 20:26:24 acg 4012855Sgabeblack@google.com// systemc_tests-2.3 4112855Sgabeblack@google.com// 4212855Sgabeblack@google.com// Revision 1.3 2006/01/19 00:48:12 acg 4312855Sgabeblack@google.com// Andy Goodrich: Changes for the fact signal write checking is enabled. 4412855Sgabeblack@google.com// 4512855Sgabeblack@google.com// Revision 1.2 2006/01/18 00:23:50 acg 4612855Sgabeblack@google.com// Change over from SC_NO_WRITE_CHECK to sc_write_check_enable() call. 4712855Sgabeblack@google.com// 4812855Sgabeblack@google.com 4912855Sgabeblack@google.com#define SC_NO_WRITE_CHECK 5012855Sgabeblack@google.com#include "systemc.h" 5112855Sgabeblack@google.com#include "const.h" 5212855Sgabeblack@google.com#include "pulse.h" 5312855Sgabeblack@google.com 5412855Sgabeblack@google.com// Find the pulse period to produce speed. 5512855Sgabeblack@google.com// This function also rounds the period to the nearest integer. 5612855Sgabeblack@google.comint 5712855Sgabeblack@google.comgen_pulse_mod::find_period(int speed) 5812855Sgabeblack@google.com{ 5912855Sgabeblack@google.com if (speed <= 0) 6012855Sgabeblack@google.com return 1; 6112855Sgabeblack@google.com 6212855Sgabeblack@google.com const double num = DIST_BETWEEN_TWO_PULSES * PERIODS_PER_HOUR / 2; 6312855Sgabeblack@google.com 6412855Sgabeblack@google.com double dp = num / speed; 6512855Sgabeblack@google.com int ip = int(dp); 6612855Sgabeblack@google.com 6712855Sgabeblack@google.com ip = ip + ((dp - ip) >= double(0.5) ? 1 : 0); 6812855Sgabeblack@google.com 6912855Sgabeblack@google.com return ip; 7012855Sgabeblack@google.com} 7112855Sgabeblack@google.com 7212855Sgabeblack@google.com// Generate pulses for speedometer and odometers. 7312855Sgabeblack@google.comvoid 7412855Sgabeblack@google.comgen_pulse_mod::gen_pulse_proc() 7512855Sgabeblack@google.com{ 7612855Sgabeblack@google.com wait(); 7712855Sgabeblack@google.com 7812855Sgabeblack@google.com speed_pulse = false; 7912855Sgabeblack@google.com dist_pulse = false; 8012855Sgabeblack@google.com 8112855Sgabeblack@google.com // Wait until the car is started. 8212855Sgabeblack@google.com do { 8312855Sgabeblack@google.com wait(); 8412855Sgabeblack@google.com } while (start.read() == false); 8512855Sgabeblack@google.com 8612855Sgabeblack@google.com while (true) { 8712855Sgabeblack@google.com 8812855Sgabeblack@google.com speed_pulse = true; 8912855Sgabeblack@google.com dist_pulse = true; 9012855Sgabeblack@google.com AWAIT(find_period(speed)); 9112855Sgabeblack@google.com 9212855Sgabeblack@google.com speed_pulse = false; 9312855Sgabeblack@google.com dist_pulse = false; 9412855Sgabeblack@google.com AWAIT(find_period(speed)); 9512855Sgabeblack@google.com } 9612855Sgabeblack@google.com} 9712855Sgabeblack@google.com 9812855Sgabeblack@google.com// End of file 99