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>

7 files changed, 429 insertions, 0 deletions

diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/golden/pct1.awif b/src/systemc/tests/systemc/tracing/wif_trace/pct1/golden/pct1.awif
new file mode 100644
index 000000000..354800e3d
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/golden/pct1.awif
@@ -0,0 +1,81 @@
+
+type scalar "BIT" enum '0', '1' ;
+type scalar "MVL" enum '0', '1', 'X', 'Z', '?' ;
+
+declare  O0   "Tx"  BIT  variable ;
+start_trace O0 ;
+declare  O1   "dout"  BIT  0 31 variable ;
+start_trace O1 ;
+declare  O2   "wr"  BIT  variable ;
+start_trace O2 ;
+comment "All initial values are dumped below at time 0 sec = 0 timescale units." ;
+assign O0 '1' ;
+assign O1 "00000000000000000000000000000000" ;
+assign O2 '1' ;
+
+delta_time 50000 ;
+assign O0 '0' ;
+
+delta_time 20000 ;
+assign O0 '1' ;
+
+delta_time 10000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 20000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 10000 ;
+assign O0 '0' ;
+
+delta_time 20000 ;
+assign O0 '1' ;
+
+delta_time 20000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 80000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 30000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 20000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 10000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 10000 ;
+assign O0 '0' ;
+
+delta_time 10000 ;
+assign O0 '1' ;
+
+delta_time 90000 ;
+assign O0 '0' ;
+
+delta_time 20000 ;
+assign O0 '1' ;
+
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/main.cpp b/src/systemc/tests/systemc/tracing/wif_trace/pct1/main.cpp
new file mode 100644
index 000000000..bb8807add
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/main.cpp
@@ -0,0 +1,69 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  main.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:
+
+ *****************************************************************************/
+
+/* Main routine for tri-state simulation */
+
+#include "tx.h"
+#include "monitor.h"
+
+int sc_main(int ac, char *av[])
+{
+  sc_signal<bool> tx;
+  sc_signal<bool> wr;
+  sc_signal<int>  dout;
+  sc_signal<bool> two_stop_bits;
+  sc_clock clock("CLK", 10.0, SC_NS, 0.5, 0.0, SC_NS);
+  sc_trace_file *tf = sc_create_wif_trace_file("pct1");
+
+  tx = true;
+  wr = true;
+  dout = 0;
+
+  two_stop_bits = true;
+  sio_tx TX("Transmitter", clock, two_stop_bits, tx);
+  monitor MON("Monitor", clock, tx, dout, wr);
+
+  //  sc_trace(tf, clock.signal(), "Clock");
+  sc_trace(tf, tx, "Tx");
+  sc_trace(tf, dout, "dout");
+  sc_trace(tf, wr, "wr");
+
+  sc_start(500, SC_NS);
+  sc_close_wif_trace_file( tf );
+  return 0;
+}
+
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.cpp b/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.cpp
new file mode 100644
index 000000000..9e8f68c6e
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.cpp
@@ -0,0 +1,49 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  monitor.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 "monitor.h"
+
+void monitor::entry()
+{
+  int n=0;
+  
+  while(1) {
+    printf("%x", tx.read());
+    wait();
+  }
+} // end of entry function
+
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.h b/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.h
new file mode 100644
index 000000000..1c37a3b28
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/monitor.h
@@ -0,0 +1,63 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  monitor.h -- 
+
+  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( monitor )
+{
+  SC_HAS_PROCESS( monitor );
+
+  sc_in_clk   clk;
+  sc_in<bool> tx;
+  sc_in<int>  dout;
+  sc_in<bool> wr;
+
+  // Constructor 
+  monitor( sc_module_name   NAME,
+	   sc_clock&        CLK,
+	   sc_signal<bool>& TX,
+	   sc_signal<int>&  DOUT,
+	   sc_signal<bool>& WR )
+    : tx(TX), dout(DOUT), wr(WR)
+  {
+    clk(CLK);
+	SC_CTHREAD( entry, clk.pos() );
+  }
+
+  // Process functionality in member function below
+  void entry();
+};
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/pct1.f b/src/systemc/tests/systemc/tracing/wif_trace/pct1/pct1.f
new file mode 100644
index 000000000..4c3ccdbdb
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/pct1.f
@@ -0,0 +1,3 @@
+pct1/main.cpp
+pct1/monitor.cpp
+pct1/tx.cpp
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.cpp b/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.cpp
new file mode 100644
index 000000000..d868d2402
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.cpp
@@ -0,0 +1,98 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  tx.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:
+
+ *****************************************************************************/
+
+/* Filename driver.cc */
+/* This is a SIO transmitter */
+
+#include "tx.h"
+
+void sio_tx::byte (char c)
+{
+  bool parity = false;
+  int n;
+
+  // Start bit
+  tx.write(false);
+  wait();
+  
+  // 8 data bits
+  for (n=0; n<8; n++) {
+    if (c & 0x1) parity=!parity;
+    tx.write (c & 0x1);
+    c = c >>1;
+    wait();
+  }
+  
+  // parity bit
+  tx.write(parity);
+  wait();
+  
+  // stop bits;
+  if (two_stop_bits) {
+    tx.write(true);
+    wait();
+    tx.write(true);
+    wait();
+  } else {
+    tx.write(true);
+    wait();
+  }
+} // end of entry function
+
+
+void sio_tx::mark (int cycles)
+{
+  int n;
+
+  for (n=0; n<cycles; n++) {
+    tx.write(true);
+    wait();
+  }
+}
+
+
+void sio_tx::entry()
+{
+  while (1) {
+    mark(5);
+    byte((char)0x5a);
+    byte((char)0xff);
+    mark(1);
+    byte((char)0xab);
+  }
+} // end of entry function
+
diff --git a/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.h b/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.h
new file mode 100644
index 000000000..de1e11469
--- /dev/null
+++ b/src/systemc/tests/systemc/tracing/wif_trace/pct1/tx.h
@@ -0,0 +1,66 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  tx.h -- 
+
+  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:
+
+ *****************************************************************************/
+
+/* Filename tx.h */
+/* This is a SIO transmitter */
+
+#include "systemc.h"
+
+SC_MODULE( sio_tx )
+{
+  SC_HAS_PROCESS( sio_tx );
+
+  sc_in_clk    clk;
+  sc_in<bool>  two_stop_bits;
+  sc_out<bool> tx;
+
+  // Constructor 
+  sio_tx( sc_module_name   NAME,
+	  sc_clock&        CLK,
+	  sc_signal<bool>& TWO_STOP_BITS,
+	  sc_signal<bool>& TX )
+    : two_stop_bits(TWO_STOP_BITS), tx(TX)
+  {
+    clk(CLK);
+	SC_CTHREAD( entry, clk.pos() );
+  }
+
+  // Process functionality in member function below
+  void entry();
+  void byte (char byte);
+  void mark(int cycles);
+};