1/***************************************************************************** 2 3 Licensed to Accellera Systems Initiative Inc. (Accellera) under one or 4 more contributor license agreements. See the NOTICE file distributed 5 with this work for additional information regarding copyright ownership. 6 Accellera licenses this file to you under the Apache License, Version 2.0 7 (the "License"); you may not use this file except in compliance with the 8 License. You may obtain a copy of the License at 9 10 http://www.apache.org/licenses/LICENSE-2.0 11 12 Unless required by applicable law or agreed to in writing, software 13 distributed under the License is distributed on an "AS IS" BASIS, 14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 15 implied. See the License for the specific language governing 16 permissions and limitations under the License. 17 18 *****************************************************************************/ 19 20/***************************************************************************** 21 22 test04.cpp -- 23 24 Original Author: Ucar Aziz, Synopsys, Inc., 2002-02-15 25 Martin Janssen, Synopsys, Inc., 2002-02-15 26 27 *****************************************************************************/ 28 29/***************************************************************************** 30 31 MODIFICATION LOG - modifiers, enter your name, affiliation, date and 32 changes you are making here. 33 34 Name, Affiliation, Date: 35 Description of Modification: 36 37 *****************************************************************************/ 38 39//test of sc_prim_channel::next_trigger(double, sc_time_unit, sc_event&) 40 41#include <systemc.h> 42 43//write and read interfaces 44class write_if : virtual public 45sc_interface 46 { 47 public: 48 virtual void write() = 0; 49}; 50 51class read_if : virtual public 52sc_interface 53{ 54 public: 55 virtual void read( ) = 0; 56}; 57 58// channel implements write_if and read_if interfaces 59class channel : 60 public sc_channel, 61 public write_if, 62 public read_if 63{ 64 65 public : 66 67 //constructor 68 channel(sc_module_name name):sc_channel(name) , data(0) 69 { } 70 71 //write to channel 72 void write(){ 73 static int i = 0; 74 next_trigger(10, SC_NS); 75 data = i; 76 cout <<"simulation time" << ":" << sc_time_stamp()<<" "; 77 cout<<"writting "<< data <<" to channel" << endl; 78 79 if(i < 5){ 80 write_event.notify(20, SC_NS); 81 } 82 else { 83 write_event.notify(5, SC_NS); 84 } 85 86 i++; 87 } 88 89 //read from channel 90 void read( ){ 91 int j; 92 next_trigger(10, SC_NS, write_event); 93 j = data; 94 cout <<"simulation time" << ":" << sc_time_stamp(); 95 cout<<" reading "<<j<<" from channel" << endl; 96 } 97 98 private: 99 int data; 100 sc_event write_event; 101 102}; 103 104//source module 105SC_MODULE(mod_a) 106{ 107 sc_port<write_if> out; 108 109 void write( ) 110 { 111 out->write(); 112 } 113 114 SC_CTOR( mod_a ){ 115 116 SC_METHOD(write); 117 } 118}; 119 120//sink module 121SC_MODULE(mod_b) 122{ 123 sc_port<read_if> input; 124 int i; 125 126 void read( ) 127 { 128 input->read(); 129 } 130 131 SC_CTOR( mod_b ){ 132 133 SC_METHOD(read); 134 } 135}; 136 137 138int sc_main(int, char*[] ) 139{ 140 channel a("a"); 141 mod_a modul_a("modul_a"); 142 mod_b modul_b("modul_b"); 143 modul_a.out(a); 144 modul_b.input(a); 145 146 sc_start(100, SC_NS); 147 return 0 ; 148} 149