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Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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/*****************************************************************************
pulse.cpp -- Implementation of the pulse generator.
Original Author: Ali Dasdan, Synopsys, Inc.
*****************************************************************************/
/*****************************************************************************
MODIFICATION LOG - modifiers, enter your name, affiliation, date and
changes you are making here.
Name, Affiliation, Date:
Description of Modification:
*****************************************************************************/
// $Log: pulse.cpp,v $
// Revision 1.1.1.1 2006/12/15 20:26:24 acg
// systemc_tests-2.3
//
// Revision 1.3 2006/01/19 00:48:20 acg
// Andy Goodrich: Changes for the fact signal write checking is enabled.
//
// Revision 1.2 2006/01/18 00:23:51 acg
// Change over from SC_NO_WRITE_CHECK to sc_write_check_enable() call.
//
#define SC_NO_WRITE_CHECK
#include "systemc.h"
#include "const.h"
#include "pulse.h"
// Find the pulse period to produce speed.
// This function also rounds the period to the nearest integer.
int
gen_pulse_mod::find_period(int speed)
{
if (speed <= 0)
return 1;
const double num = DIST_BETWEEN_TWO_PULSES * PERIODS_PER_HOUR / 2;
double dp = num / speed;
int ip = int(dp);
ip = ip + ((dp - ip) >= double(0.5) ? 1 : 0);
return ip;
}
// Generate pulses for speedometer and odometers.
void
gen_pulse_mod::gen_pulse_proc()
{
speed_pulse = false;
dist_pulse = false;
// Wait until the car is started.
do { wait(); } while (start != true);
/*
do {
wait();
} while (start == false);
*/
while (true) {
speed_pulse = true;
dist_pulse = true;
AWAIT(find_period(speed));
speed_pulse = false;
dist_pulse = false;
AWAIT(find_period(speed));
}
}
// End of file