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 adder_sub.cpp -- 2312855Sgabeblack@google.com 2412855Sgabeblack@google.com Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 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/* Filename adder_sub.cc */ 3912855Sgabeblack@google.com/* This is the implementation file for synchronous process `adder_sub' */ 4012855Sgabeblack@google.com 4112855Sgabeblack@google.com#include "adder_sub.h" 4212855Sgabeblack@google.com 4312855Sgabeblack@google.comint add(int a, int b) 4412855Sgabeblack@google.com{ 4512855Sgabeblack@google.com return (a + b); 4612855Sgabeblack@google.com} 4712855Sgabeblack@google.com 4812855Sgabeblack@google.comvoid adder_sub::entry() 4912855Sgabeblack@google.com{ 5012855Sgabeblack@google.com int sum; 5112855Sgabeblack@google.com int a, b, c, d; 5212855Sgabeblack@google.com 5312855Sgabeblack@google.com while (true) { 5412855Sgabeblack@google.com // Wait until you get signal to go 5512855Sgabeblack@google.com do { wait(); } while (adder_sub_ready != true); 5612855Sgabeblack@google.com // Read inputs 5712855Sgabeblack@google.com a = Sa.read(); 5812855Sgabeblack@google.com b = Sb.read(); 5912855Sgabeblack@google.com c = Sc.read(); 6012855Sgabeblack@google.com 6112855Sgabeblack@google.com // Perform the computation. 6212855Sgabeblack@google.com sum = add(a, b); 6312855Sgabeblack@google.com sum = add(sum, c); 6412855Sgabeblack@google.com d = a - b; 6512855Sgabeblack@google.com 6612855Sgabeblack@google.com // Write outputs 6712855Sgabeblack@google.com adder_sub_done.write(true); 6812855Sgabeblack@google.com Ssum.write(sum); 6912855Sgabeblack@google.com Sd.write(d); 7012855Sgabeblack@google.com wait(); 7112855Sgabeblack@google.com adder_sub_done.write(false); 7212855Sgabeblack@google.com // Loop back to do { wait(); } while . 7312855Sgabeblack@google.com } 7412855Sgabeblack@google.com 7512855Sgabeblack@google.com} // end of entry function 7612855Sgabeblack@google.com 77