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Diffstat (limited to 'src/systemc/tests/systemc/misc/user_guide/newsched/test1/test1.cpp')
| -rw-r--r-- | src/systemc/tests/systemc/misc/user_guide/newsched/test1/test1.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/user_guide/newsched/test1/test1.cpp b/src/systemc/tests/systemc/misc/user_guide/newsched/test1/test1.cpp new file mode 100644 index 000000000..101387b96 --- /dev/null +++ b/src/systemc/tests/systemc/misc/user_guide/newsched/test1/test1.cpp @@ -0,0 +1,176 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + test1.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 1. Checking triggering of a sc_async/sc_aproc + vis-a-vis a synchronous process. + This test checks to ensure that a synch. and async. sensitive + to a clock are triggered correctly. + */ + +#include "systemc.h" + +SC_MODULE( syncproc ) +{ + SC_HAS_PROCESS( syncproc ); + + sc_in<bool> clk; + + const sc_signal<int>& in1; + const sc_signal<int>& in2; + sc_signal<int>& out; + + syncproc(sc_module_name NAME, + sc_signal_in_if<bool>& CLK, + const sc_signal<int>& IN1, + const sc_signal<int>& IN2, + sc_signal<int>& OUT_) + : in1(IN1), in2(IN2), out(OUT_) + { + SC_CTHREAD( entry, clk.pos() ); + clk(CLK); + out = 0; + } + + void entry() + { + int i = 100; + while (true) { + out = i; + wait(); + while (in1.read() != i) { + cout << "Sync: Value written = " << i << " value1 read = " << in1.read() << " value2 read = " << in2.read() << endl; + wait(); + cout << "Waited one cycle\n" << endl; + } + i++; + } + } +}; + +SC_MODULE( asyncproc ) +{ + SC_HAS_PROCESS( asyncproc ); + + const sc_signal<int>& in; + sc_signal<int>& out; + sc_in<bool> clock; + + asyncproc(sc_module_name NAME, + const sc_signal<int>& IN_, + sc_signal<int>& OUT_, + sc_signal_in_if<bool>& CLOCK) + : in(IN_), out(OUT_) + { + out = 0; + clock(CLOCK); + SC_THREAD( entry ); + sensitive << clock.pos(); + } + + void entry() + { + wait(); + while (true) { + if (clock.posedge()) { + out = in; + cout << "AsyncProc: Value read = " << in.read() << endl; + } + else { + cout << "Error" << endl; + } + wait(); + } + } +}; + +SC_MODULE( asyncblock ) +{ + SC_HAS_PROCESS( asyncblock ); + + const sc_signal<int>& in; + sc_signal<int>& out; + sc_in<bool> clock; + + asyncblock(sc_module_name NAME, + const sc_signal<int>& IN_, + sc_signal<int>& OUT_, + sc_signal_in_if<bool>& CLOCK) + : in(IN_), out(OUT_) + { + clock(CLOCK); + out = 0; + SC_METHOD( entry ); + sensitive << clock; + } + + void entry() + { + if (clock.posedge()) { + out = in; + cout << "AsyncBlock: Value read = " << in.read() << endl; + } + else { + cout << "Seen other edge" << endl; + } + } +}; + + +int +sc_main(int ac, char *av[]) +{ + sc_signal<int> a, b, c; + + sc_clock clock("Clock", 20, SC_NS, 0.5); + + syncproc P1("P1", clock, a, b, c); + asyncproc P2("P2", c, a, clock); + asyncblock P3("P3", c, b, clock); + + sc_trace_file *tf = sc_create_vcd_trace_file("systemc"); + tf->set_time_unit(1, SC_NS); + sc_trace(tf, a, "SYNC-IN1"); + sc_trace(tf, b, "SYNC-IN2"); + sc_trace(tf, c, "SYNC2-OUT"); + sc_trace(tf, clock, "Clock"); + + sc_start(160, SC_NS); + return 0; + +} |