systemc: Import tests from the Accellera systemc distribution.

Change-Id: Iad76b398949a55d768a34d027a2d8e3739953da6
Reviewed-on: https://gem5-review.googlesource.com/10845
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>

6 files changed, 295 insertions, 0 deletions

diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/golden/sc_delta_count.log b/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/golden/sc_delta_count.log
new file mode 100644
index 000000000..bb953300a
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/golden/sc_delta_count.log
@@ -0,0 +1,6 @@
+SystemC Simulation
+2
+4
+
+Info: /OSCI/SystemC: Simulation stopped by user.
+Program completed after 5 ns
diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/sc_delta_count.cpp b/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/sc_delta_count.cpp
new file mode 100644
index 000000000..087e7157e
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/sc_delta_count/sc_delta_count.cpp
@@ -0,0 +1,33 @@
+#include "systemc.h"
+
+SC_MODULE(TB)
+{
+	SC_CTOR(TB)
+	{
+		SC_METHOD(method)
+		sensitive << m_flipper;
+		SC_THREAD(thread)
+	}
+	void method()
+	{
+	}
+	void thread()
+	{
+		m_flipper = !m_flipper;
+		wait(2, SC_NS);
+		cout << sc_delta_count() << endl;
+		m_flipper = !m_flipper;
+		wait(3, SC_NS);
+		cout << sc_delta_count() << endl;
+		sc_stop();
+	}
+	sc_signal<bool> m_flipper;
+};
+
+int sc_main(int argc, char* argv[])
+{
+	TB		tb("tb");
+	sc_start();
+	cout << "Program completed after " << sc_time_stamp() << endl;
+	return 0;
+}
diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/test01/golden/test01.log b/src/systemc/tests/systemc/kernel/sc_simcontext/test01/golden/test01.log
new file mode 100644
index 000000000..3db91fdf5
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/test01/golden/test01.log
@@ -0,0 +1,4 @@
+SystemC Simulation
+0 main_action_method called
+0 main_action_thread called
+1 main_action_cthread called
diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/test01/test01.cpp b/src/systemc/tests/systemc/kernel/sc_simcontext/test01/test01.cpp
new file mode 100644
index 000000000..bbe48deb5
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/test01/test01.cpp
@@ -0,0 +1,89 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  test01.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:
+
+ *****************************************************************************/
+
+// test of SC_METHOD and SC_THREAD (but not SC_CTHREAD) initialization
+
+#include "systemc.h"
+
+SC_MODULE( mod_a ) {
+
+    sc_in_clk clk;
+
+    void main_action_method()
+    {
+        cout << sc_delta_count()
+             << " main_action_method called" << endl;
+    }
+
+    void main_action_thread()
+    {
+        while( true ) {
+            cout << sc_delta_count()
+                 << " main_action_thread called" << endl;
+            wait(); // for what?
+        }
+    }
+
+    void main_action_cthread()
+    {
+        while( true ) {
+            cout << sc_delta_count()
+                 << " main_action_cthread called" << endl;
+            wait();
+        }
+    }
+
+    SC_CTOR( mod_a )
+    {
+        SC_METHOD( main_action_method );
+        SC_THREAD( main_action_thread );
+        SC_CTHREAD( main_action_cthread, clk.pos() );
+    }
+};
+
+int
+sc_main( int, char*[] )
+{
+    sc_clock clk;
+
+    mod_a a( "a" );
+    a.clk( clk );
+
+    sc_start(1, SC_NS);
+
+    return 0;
+}
diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/test02/golden/test02.log b/src/systemc/tests/systemc/kernel/sc_simcontext/test02/golden/test02.log
new file mode 100644
index 000000000..df6c708dc
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/test02/golden/test02.log
@@ -0,0 +1,24 @@
+SystemC Simulation
+
+Warning: (W524) dont_initialize() has no effect for SC_CTHREADs
+In file: <removed by verify.pl>
+0 s method_a
+0 s thread_a
+500 ps method_a
+500 ps method_b
+500 ps cthread_a
+500 ps thread_a
+500 ps cthread_b
+500 ps thread_b
+1500 ps method_a
+1500 ps method_b
+1500 ps cthread_a
+1500 ps thread_a
+1500 ps cthread_b
+1500 ps thread_b
+2500 ps method_a
+2500 ps method_b
+2500 ps cthread_a
+2500 ps thread_a
+2500 ps cthread_b
+2500 ps thread_b
diff --git a/src/systemc/tests/systemc/kernel/sc_simcontext/test02/test02.cpp b/src/systemc/tests/systemc/kernel/sc_simcontext/test02/test02.cpp
new file mode 100644
index 000000000..f168c6829
--- /dev/null
+++ b/src/systemc/tests/systemc/kernel/sc_simcontext/test02/test02.cpp
@@ -0,0 +1,139 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  test02.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:
+
+ *****************************************************************************/
+
+// test of process initialization -- the dont_initialize() method
+
+#include "systemc.h"
+
+SC_MODULE( mod_a )
+{
+    sc_in_clk clk;
+
+    void write( const char* msg )
+    {
+        cout << sc_time_stamp() << " " << msg << endl;
+    }
+
+    void method_a()
+    {
+        write( "method_a" );
+    }
+
+    void thread_a()
+    {
+        while( true ) {
+            write( "thread_a" );
+            wait();
+        }
+    }
+
+    void cthread_a()
+    {
+        while( true ) {
+            write( "cthread_a" );
+            wait();
+        }
+    }
+
+    SC_CTOR( mod_a )
+    {
+        SC_METHOD( method_a );
+        sensitive << clk.neg();
+        SC_THREAD( thread_a );
+        sensitive << clk.neg();
+        SC_CTHREAD( cthread_a, clk.neg() );
+    }
+};
+
+SC_MODULE( mod_b )
+{
+    sc_in_clk clk;
+
+    void write( const char* msg )
+    {
+        cout << sc_time_stamp() << " " << msg << endl;
+    }
+
+    void method_b()
+    {
+        write( "method_b" );
+    }
+
+    void thread_b()
+    {
+        while( true ) {
+            write( "thread_b" );
+            wait();
+        }
+    }
+
+    void cthread_b()
+    {
+        while( true ) {
+            write( "cthread_b" );
+            wait();
+        }
+    }
+
+    SC_CTOR( mod_b )
+    {
+        SC_METHOD( method_b );
+        sensitive << clk.neg();
+        dont_initialize();
+        SC_THREAD( thread_b );
+        sensitive << clk.neg();
+        dont_initialize();
+        SC_CTHREAD( cthread_b, clk.neg() );
+        dont_initialize();
+    }
+};
+
+int
+sc_main( int, char*[] )
+{
+    sc_clock clk;
+
+    mod_a a( "a" );
+    mod_b b( "b" );
+
+    a.clk( clk );
+    b.clk( clk );
+
+    sc_start( 3, SC_NS );
+
+    return 0;
+}