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 test08.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(sc_time&, sc_event_and_list&) 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 77 cout <<"simulation time" << ":" << sc_time_stamp()<<" "; 78 cout<<"writing "<< data <<" to channel" << endl; 79 80 if(i < 3){ 81 write_event_1.notify(20, SC_NS); 82 } 83 else if(3 <= i && i < 6) { 84 write_event_2.notify(5, SC_NS); 85 } 86 else{ 87 write_event_2.notify(5, SC_NS); 88 write_event_1.notify(5, SC_NS); 89 } 90 91 i++; 92 } 93 94 //read from channel 95 void read( ){ 96 int j; 97 const sc_time t(10, SC_NS); 98 next_trigger(t, write_event_1 & write_event_2); 99 j = data; 100 cout <<"simulation time" << ":" << sc_time_stamp(); 101 cout<<" reading "<<j<<" from channel" << endl; 102 } 103 104 private: 105 int data; 106 sc_event write_event_1, write_event_2; 107 108}; 109 110//source module 111SC_MODULE(mod_a) 112{ 113 sc_port<write_if> out; 114 115 void write( ) 116 { 117 out->write(); 118 } 119 120 SC_CTOR( mod_a ){ 121 122 SC_METHOD(write); 123 } 124}; 125 126//sink module 127SC_MODULE(mod_b) 128{ 129 sc_port<read_if> input; 130 int i; 131 132 void read( ) 133 { 134 input->read(); 135 } 136 137 SC_CTOR( mod_b ){ 138 139 SC_METHOD(read); 140 } 141}; 142 143 144int sc_main(int, char*[] ) 145{ 146 channel a("a"); 147 mod_a modul_a("modul_a"); 148 mod_b modul_b("modul_b"); 149 modul_a.out(a); 150 modul_b.input(a); 151 152 sc_start(120, SC_NS); 153 return 0 ; 154} 155