| /***************************************************************************** |
| |
| 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| resolved_sig.cpp -- |
| |
| Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| #include "systemc.h" |
| |
| /**************************************/ |
| |
| SC_MODULE( stimgen ) |
| { |
| SC_HAS_PROCESS( stimgen ); |
| |
| // Inputs |
| sc_in_clk clk; |
| sc_in<int> result; |
| |
| // Outputs |
| sc_out<int> in1; |
| sc_out<int> in2; |
| sc_out<bool> ready; |
| sc_out_rv<8> bus; |
| |
| // Constructor |
| stimgen( sc_module_name NAME, |
| sc_clock& TICK, |
| sc_signal<int>& RESULT, |
| sc_signal<int>& IN1, |
| sc_signal<int>& IN2, |
| sc_signal<bool>& READY, |
| sc_signal_rv<8>& BUS ) |
| { |
| SC_CTHREAD( entry, clk.pos() ); |
| clk( TICK ); |
| result( RESULT ); |
| in1( IN1 ); |
| in2( IN2 ); |
| ready( READY ); |
| bus( BUS ); |
| } |
| |
| void entry(); |
| }; |
| |
| /**************************************/ |
| |
| SC_MODULE( datawidth ) |
| { |
| SC_HAS_PROCESS( datawidth ); |
| |
| // Inputs |
| sc_in_clk clk; |
| sc_in<int> in1; |
| sc_in<int> in2; |
| sc_in<bool> ready; |
| sc_inout_rv<8> bus; |
| |
| // Outputs |
| sc_out<int> result; |
| |
| // Constructor |
| datawidth( sc_module_name NAME, |
| sc_clock& TICK, |
| sc_signal<int>& IN1, |
| sc_signal<int>& IN2, |
| sc_signal<bool>& READY, |
| sc_signal<int>& RESULT, |
| sc_signal_rv<8>& BUS ) |
| { |
| SC_CTHREAD( entry, clk.pos() ); |
| clk( TICK ); |
| in1( IN1 ); |
| in2( IN2 ); |
| ready( READY ); |
| bus( BUS ); |
| result( RESULT ); |
| } |
| |
| void entry(); |
| }; |
| |
| /*******************************************/ |
| |
| void |
| datawidth::entry() |
| { |
| int tmp_a; |
| int tmp_b; |
| int tmp_result; |
| |
| while (true) { |
| |
| // HANDSHAKING |
| do { wait(); } while ( ready != 1 ); |
| |
| // COMPUTATION |
| tmp_a = in1.read(); |
| tmp_b = in2.read(); |
| tmp_result = tmp_a + tmp_b; |
| cout << "; reading from bus=" << bus.read() << endl; |
| sc_lv<8> lv( '0' ); |
| lv[1] = lv[3] = lv[5] = lv[7] = 1; |
| cout << "datawidth writing to bus: " << lv << endl; |
| bus.write( lv ); |
| |
| // WRITE OUTPUT |
| result.write( tmp_result ); // result = in1 + in2 |
| wait(); |
| } |
| } |
| |
| /*****************************************/ |
| |
| void |
| stimgen::entry() |
| { |
| int i; |
| int j; |
| |
| ready.write( 0 ); |
| |
| for( i = 0; i < 6; i ++ ) { // integer in1 (6 bits of data) |
| for( j = 0; j < 6; j ++ ) { // integer in2 (6 bits of data) |
| in1.write( i ); |
| in2.write( j ); |
| ready.write( 1 ); |
| sc_lv<8> lv( sc_logic( i % 4 ) ); |
| lv[1] = lv[3] = lv[5] = lv[7] = j % 4; |
| cout << "writing to bus: " << lv << flush; |
| bus.write( lv ); |
| wait(); |
| |
| ready.write( 0 ); |
| wait(); |
| |
| // cout << in1.read() << " + " << in2.read() |
| // << " = " << result.read() << endl; |
| } |
| } |
| |
| sc_stop(); |
| } |
| |
| /***************************************/ |
| /* */ |
| /* int = int + int */ |
| /* */ |
| /* Max addition is 63 + 63 */ |
| /* */ |
| /***************************************/ |
| |
| int |
| sc_main( int ac, char *av[] ) |
| { |
| // Signal Instantiation |
| sc_signal<int> in1( "in1" ); |
| sc_signal<int> in2( "in2" ); |
| sc_signal<int> result( "result" ); |
| sc_signal<bool> ready( "ready" ); |
| sc_signal_rv<8> bus( "bus" ); |
| |
| // Clock Instantiation |
| sc_clock clk( "clock", 10, SC_NS, 0.5, 0, SC_NS ); |
| |
| // Process Instantiation |
| datawidth D1( "D1", clk, in1, in2, ready, result, bus ); |
| stimgen T1( "T1", clk, result, in1, in2, ready,bus ); |
| |
| // Simulation Run Control |
| sc_start(); |
| |
| return 0; |
| } |