diff options
Diffstat (limited to 'src/systemc/tests/systemc/misc/user_guide/newsched/test5/test5.cpp')
| -rw-r--r-- | src/systemc/tests/systemc/misc/user_guide/newsched/test5/test5.cpp | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/user_guide/newsched/test5/test5.cpp b/src/systemc/tests/systemc/misc/user_guide/newsched/test5/test5.cpp new file mode 100644 index 000000000..2338cde83 --- /dev/null +++ b/src/systemc/tests/systemc/misc/user_guide/newsched/test5/test5.cpp @@ -0,0 +1,189 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + test5.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: + + *****************************************************************************/ + +/* + Corner case testing for new scheduler. + Case 4: Checking gated clocks and triggering of processes + */ + +#include "systemc.h" + +SC_MODULE( cgater ) +{ + SC_HAS_PROCESS( cgater ); + + const sc_signal<bool>& gate; + sc_in<bool> clock_in; + sc_out<bool> clock_out; + + cgater(sc_module_name NAME, + const sc_signal<bool>& GATE, + sc_signal_in_if<bool>& CLOCK_IN, + sc_signal_out_if<bool>& CLOCK_OUT) + : gate(GATE) + { + clock_in(CLOCK_IN); + clock_out(CLOCK_OUT); + SC_METHOD( entry ); + sensitive << gate; + sensitive << clock_in; + } + + void entry() + { + clock_out = clock_in & gate; + } +}; + +SC_MODULE( watcher ) +{ + SC_HAS_PROCESS( watcher ); + + const sc_signal<bool>& gate; + sc_in<bool> clock; + sc_in<bool> dclock; + const sc_signal<int>& a; + + watcher(sc_module_name NAME, + const sc_signal<bool>& GATE, + sc_signal_in_if<bool>& CLOCK, + sc_signal_in_if<bool>& DCLOCK, + const sc_signal<int>& A) + : gate(GATE), a(A) + { + clock(CLOCK); + dclock(DCLOCK); + SC_METHOD( entry ); + sensitive << clock; + sensitive << a; + sensitive << gate; + sensitive << dclock; + } + + void entry() + { + cout << "[ "; + if (clock.posedge()) cout << "Posedge - "; + if (clock.negedge()) cout << "Negedge - "; + if (dclock.posedge()) cout << "Posedge(D) - "; + if (dclock.negedge()) cout << "Negedge(D) - "; + if (a.event()) cout << "A = " << a.read() << " - "; + if (gate.event()) cout << "Gate = " << gate.read() << " - "; + cout << "]" << endl; + } +}; + + +SC_MODULE( gategen ) +{ + SC_HAS_PROCESS( gategen ); + + sc_in<bool> clk; + + sc_signal<bool>& gate; + + gategen(sc_module_name NAME, + sc_signal_in_if<bool>& CLK, + sc_signal<bool>& GATE) + : gate(GATE) + { + clk(CLK); + SC_CTHREAD( entry, clk.pos() ); + gate = 1; + } + + void entry() + { + while (true) { + gate = 1; wait(3); + gate = 0; wait (3); + } + } +}; + +SC_MODULE( trigp ) +{ + SC_HAS_PROCESS( trigp ); + + sc_in<bool> clk; + + sc_signal<int>& out; + + trigp(sc_module_name NAME, + sc_signal_in_if<bool>& CLK, + sc_signal<int>& OUT_) + : out(OUT_) + { + clk(CLK); + SC_CTHREAD( entry, clk.pos() ); + out = 0; + } + + void entry() + { + int i = 11; + while (true) { + out = i++; + wait(); + } + } +}; + +int +sc_main(int ac, char *av[]) +{ + sc_clock clock1("Clock1", 20, SC_NS, 0.5); + // sc_clock dclock("Derived", -1); + sc_signal<bool> dclock( "Derived" ); + + sc_signal<bool> Gate; + sc_signal<int> Output; + + cgater CG("CG", Gate, clock1, dclock); + watcher W("W", Gate, clock1, dclock, Output); + gategen G("G", clock1, Gate); + trigp T("T", dclock, Output); + + sc_trace_file *tf = sc_create_vcd_trace_file("systemc"); + sc_trace(tf, clock1, "Clock"); + sc_trace(tf, dclock, "Dclock"); + sc_trace(tf, Gate, "Gate"); + sc_trace(tf, Output, "Out"); + + sc_start(600, SC_NS); + return 0; +} |