| /***************************************************************************** |
| |
| 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| dataflow.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( sawtooth ) |
| { |
| SC_HAS_PROCESS( sawtooth ); |
| |
| sc_in_clk clk; |
| |
| sc_fifo<int>& out1; |
| sc_fifo<int>& out2; |
| |
| sawtooth( sc_module_name NAME, |
| sc_clock& CLK, |
| sc_fifo<int>& OUT1, |
| sc_fifo<int>& OUT2 ) |
| : out1(OUT1), out2(OUT2) |
| { |
| clk(CLK); |
| SC_THREAD( entry ); |
| sensitive << clk.pos(); |
| } |
| |
| void entry(); |
| }; |
| |
| void sawtooth::entry() |
| { |
| int index = 0; |
| while (true) { |
| wait(); |
| out1.write(index % 17); |
| out2.write(index % 17); |
| index++; |
| } |
| } |
| |
| SC_MODULE( delay ) |
| { |
| SC_HAS_PROCESS( delay ); |
| |
| sc_in_clk clk; |
| |
| sc_fifo<int>& in; |
| sc_fifo<int>& out; |
| |
| delay( sc_module_name NAME, |
| sc_clock& CLK, |
| sc_fifo<int>& IN_, |
| sc_fifo<int>& OUT_ ) |
| : in(IN_), out(OUT_) |
| { |
| clk(CLK); |
| SC_THREAD( entry ); |
| sensitive << clk.pos(); |
| } |
| |
| void entry(); |
| }; |
| |
| void delay::entry() |
| { |
| int buffer = 0; |
| |
| while (true) { |
| out.write(buffer); |
| buffer = in.read(); |
| } |
| } |
| |
| SC_MODULE( downsample ) |
| { |
| SC_HAS_PROCESS( downsample ); |
| |
| sc_in_clk clk; |
| |
| sc_fifo<int>& in; |
| sc_fifo<int>& out; |
| |
| downsample( sc_module_name NAME, |
| sc_clock& CLK, |
| sc_fifo<int>& IN_, |
| sc_fifo<int>& OUT_ ) |
| : in(IN_), out(OUT_) |
| { |
| clk(CLK); |
| SC_THREAD( entry ); |
| sensitive << clk.pos(); |
| } |
| |
| void entry(); |
| }; |
| |
| void downsample::entry() |
| { |
| int temp; |
| while (true) { |
| temp = in.read(); |
| temp = in.read(); |
| out.write(temp); |
| } |
| } |
| |
| SC_MODULE( upsample ) |
| { |
| SC_HAS_PROCESS( upsample ); |
| |
| sc_in_clk clk; |
| |
| sc_fifo<int>& in; |
| sc_fifo<int>& out; |
| |
| upsample( sc_module_name NAME, |
| sc_clock& CLK, |
| sc_fifo<int>& IN_, |
| sc_fifo<int>& OUT_ ) |
| : in(IN_), out(OUT_) |
| { |
| clk(CLK); |
| SC_THREAD( entry ); |
| sensitive << clk.pos(); |
| } |
| |
| void entry(); |
| }; |
| |
| void upsample::entry() |
| { |
| while(true) { |
| out.write(in.read()); |
| out.write(0); |
| } |
| } |
| |
| SC_MODULE( adder ) |
| { |
| SC_HAS_PROCESS( adder ); |
| |
| sc_in_clk clk; |
| |
| sc_fifo<int>& a; |
| sc_fifo<int>& b; |
| |
| adder( sc_module_name NAME, |
| sc_clock& CLK, |
| sc_fifo<int>& A, |
| sc_fifo<int>& B ) |
| : a(A), b(B) |
| { |
| clk(CLK); |
| SC_THREAD( entry ); |
| sensitive << clk.pos(); |
| } |
| |
| void entry(); |
| }; |
| |
| void adder::entry() |
| { |
| while(true) { |
| int tmp = a.read() + b.read(); |
| cout << "Sum = " << tmp << endl; |
| } |
| } |
| |
| |
| int sc_main(int ac, char *av[]) |
| { |
| sc_fifo<int> st1("ST1", 2), st2("ST2", 2); |
| sc_fifo<int> a1("A1", 2), a2("A2", 2), a3("A3", 2); |
| sc_fifo<int> b1("B1", 2), b2("B2", 2), b3("B3", 2); |
| |
| sc_clock clock("CLOCK"); |
| |
| sawtooth ST("TB1", clock, st1, st2); |
| |
| delay D1("D1", clock, st1, a1); |
| downsample DN1("DN1", clock, a1, a2); |
| upsample UP1("UP1", clock, a2, a3); |
| |
| downsample DN2("DN2", clock, st2, b1); |
| upsample UP2("UP2", clock, b1, b2); |
| delay D2("D2", clock, b2, b3); |
| |
| adder A ("A", clock, a3, b3); |
| |
| sc_start(100, SC_NS); |
| |
| return 0; |
| } |