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+/*****************************************************************************
+
+ Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
+ more contributor license agreements. See the NOTICE file distributed
+ with this work for additional information regarding copyright ownership.
+ Accellera licenses this file to you under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with the
+ License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied. See the License for the specific language governing
+ permissions and limitations under the License.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+ 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