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>

10 files changed, 805 insertions, 0 deletions

diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/common.h b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/common.h
new file mode 100644
index 000000000..2a4edbad5
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/common.h
@@ -0,0 +1,45 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  common.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:
+
+ *****************************************************************************/
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#include "systemc.h"
+
+typedef sc_signal<sc_bv<4> > sc_signal_bool_vector;
+
+#endif
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.cpp b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.cpp
new file mode 100644
index 000000000..86f654680
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.cpp
@@ -0,0 +1,92 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  decrement.cpp -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "decrement.h"
+
+void decrement::entry(){
+  
+  #define ONE 1
+  const int       eins = 1;
+  int             tmp1;
+  sc_bigint<4>    tmp2;
+
+  // reset_loop
+  if (reset.read() == true) {
+    out_valid.write(false);
+    out_ack.write(false);
+    wait();
+  } else wait();
+
+  //
+  // main loop
+  //
+    
+ while(1) {
+    while(in_valid.read()==false) wait();
+    wait();
+
+    //reading the inputs
+    tmp1 = in_value1.read();
+    tmp2 = in_value2.read();
+
+    //execute simple operations
+    tmp1 = tmp1 - 1;
+    tmp1 = tmp1 - ONE;
+    tmp1 = tmp1 - eins;
+    tmp1--;
+    tmp2 = tmp2 - 1;
+    tmp2 = tmp2 - ONE;
+    tmp2 = tmp2 - eins;
+    tmp2--;
+
+    out_ack.write(true);
+
+    // write outputs
+    out_value1.write(tmp1);
+    out_value2.write(tmp2);
+
+    out_valid.write(true);
+    wait();
+    out_ack.write(false);
+    out_valid.write(false);
+    wait();
+  }
+}
+
+// EOF
+
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.f b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.f
new file mode 100644
index 000000000..894de102e
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.f
@@ -0,0 +1,4 @@
+decrement/stimulus.cpp
+decrement/display.cpp
+decrement/decrement.cpp
+decrement/main.cpp
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.h b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.h
new file mode 100644
index 000000000..cf19214a9
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/decrement.h
@@ -0,0 +1,102 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  decrement.h -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "common.h"
+
+SC_MODULE( decrement )
+{
+    SC_HAS_PROCESS( decrement );
+
+    sc_in_clk clk;
+
+    //====================================================================
+    // [C] Always Needed Member Function
+    //        --  constructor
+    //        --  entry
+    //====================================================================
+
+    const sc_signal<bool>&             reset ;
+    const sc_signal<int>&              in_value1;     // Input  port
+    const sc_signal_bool_vector&       in_value2;     // Input port
+    const sc_signal<bool>&             in_valid;      // Input  port
+    sc_signal<bool>&                   out_ack;       // Output port
+    sc_signal<int>&                    out_value1;    // Output port
+    sc_signal_bool_vector&             out_value2;    // Output port
+    sc_signal<bool>&                   out_valid;     // Output port
+
+    //
+    // Constructor
+    //
+
+    decrement (
+               sc_module_name   NAME,          // referense name
+               sc_clock&        CLK,           // clock
+        const  sc_signal<bool>& RESET,
+        const  sc_signal<int>&                    IN_VALUE1,
+        const  sc_signal_bool_vector&             IN_VALUE2,
+        const  sc_signal<bool>&                   IN_VALID,     // Input  port
+               sc_signal<bool>&                   OUT_ACK,
+               sc_signal<int>&                    OUT_VALUE1,
+               sc_signal_bool_vector&             OUT_VALUE2,
+               sc_signal<bool>&                   OUT_VALID    // Output port
+        )
+        : 
+          reset        (RESET),
+          in_value1    (IN_VALUE1),
+          in_value2    (IN_VALUE2),
+          in_valid     (IN_VALID),
+          out_ack      (OUT_ACK),
+          out_value1   (OUT_VALUE1),
+          out_value2   (OUT_VALUE2),
+          out_valid    (OUT_VALID)
+
+    {
+      clk          (CLK);
+	  SC_CTHREAD( entry, clk.pos() );
+      reset_signal_is(reset,true);
+    };
+
+    //
+
+    void entry ();
+
+};
+
+// EOF
+
+
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.cpp b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.cpp
new file mode 100644
index 000000000..c1192ec7b
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.cpp
@@ -0,0 +1,52 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  display.cpp -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "display.h"
+
+void display::entry() {
+
+    int counter = 0;
+
+    while(counter++<100){
+       do { wait(); } while ( in_valid == false);
+       cout << "Display: " << in_value1.read() << " " << in_value2.read() << endl;
+       do { wait(); } while ( in_valid == true);
+    }
+   sc_stop();   
+}
+// EOF
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.h b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.h
new file mode 100644
index 000000000..80f2aa3cd
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/display.h
@@ -0,0 +1,75 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  display.h -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "common.h"
+
+SC_MODULE( display )
+{
+    SC_HAS_PROCESS( display );
+
+    sc_in_clk clk;
+
+    const sc_signal<int>&              in_value1;                        // Input  port
+    const sc_signal_bool_vector&       in_value2;     // Input  port
+    const sc_signal<bool>&             in_valid;                         // Input  port
+
+   // 
+   // Constructor
+   //
+
+   display(
+               sc_module_name    NAME,      // reference name
+               sc_clock&      CLK,          // clock
+               const sc_signal<int>&             IN_VALUE1,
+               const sc_signal_bool_vector&      IN_VALUE2,
+               const sc_signal<bool>&            IN_VALID
+           ) 
+           : 
+             in_value1    (IN_VALUE1),
+             in_value2    (IN_VALUE2),
+             in_valid     (IN_VALID)
+     {
+       clk          (CLK);
+	   SC_CTHREAD( entry, clk.pos() );
+     };
+
+ 
+ void entry();
+};
+
+// EOF
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/golden/decrement.log b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/golden/decrement.log
new file mode 100644
index 000000000..10fc11b2e
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/golden/decrement.log
@@ -0,0 +1,204 @@
+SystemC Simulation
+Stimuli: 0 1
+Display: -4 1101
+Stimuli: 1 2
+Display: -3 1110
+Stimuli: 2 3
+Display: -2 1111
+Stimuli: 3 4
+Display: -1 0000
+Stimuli: 4 5
+Display: 0 0001
+Stimuli: 5 6
+Display: 1 0010
+Stimuli: 6 7
+Display: 2 0011
+Stimuli: 7 -8
+Display: 3 0100
+Stimuli: 8 -7
+Display: 4 0101
+Stimuli: 9 -6
+Display: 5 0110
+Stimuli: 10 -5
+Display: 6 0111
+Stimuli: 11 -4
+Display: 7 1000
+Stimuli: 12 -3
+Display: 8 1001
+Stimuli: 13 -2
+Display: 9 1010
+Stimuli: 14 -1
+Display: 10 1011
+Stimuli: 15 0
+Display: 11 1100
+Stimuli: 16 1
+Display: 12 1101
+Stimuli: 17 2
+Display: 13 1110
+Stimuli: 18 3
+Display: 14 1111
+Stimuli: 19 4
+Display: 15 0000
+Stimuli: 20 5
+Display: 16 0001
+Stimuli: 21 6
+Display: 17 0010
+Stimuli: 22 7
+Display: 18 0011
+Stimuli: 23 -8
+Display: 19 0100
+Stimuli: 24 -7
+Display: 20 0101
+Stimuli: 25 -6
+Display: 21 0110
+Stimuli: 26 -5
+Display: 22 0111
+Stimuli: 27 -4
+Display: 23 1000
+Stimuli: 28 -3
+Display: 24 1001
+Stimuli: 29 -2
+Display: 25 1010
+Stimuli: 30 -1
+Display: 26 1011
+Stimuli: 31 0
+Display: 27 1100
+Stimuli: 32 1
+Display: 28 1101
+Stimuli: 33 2
+Display: 29 1110
+Stimuli: 34 3
+Display: 30 1111
+Stimuli: 35 4
+Display: 31 0000
+Stimuli: 36 5
+Display: 32 0001
+Stimuli: 37 6
+Display: 33 0010
+Stimuli: 38 7
+Display: 34 0011
+Stimuli: 39 -8
+Display: 35 0100
+Stimuli: 40 -7
+Display: 36 0101
+Stimuli: 41 -6
+Display: 37 0110
+Stimuli: 42 -5
+Display: 38 0111
+Stimuli: 43 -4
+Display: 39 1000
+Stimuli: 44 -3
+Display: 40 1001
+Stimuli: 45 -2
+Display: 41 1010
+Stimuli: 46 -1
+Display: 42 1011
+Stimuli: 47 0
+Display: 43 1100
+Stimuli: 48 1
+Display: 44 1101
+Stimuli: 49 2
+Display: 45 1110
+Stimuli: 50 3
+Display: 46 1111
+Stimuli: 51 4
+Display: 47 0000
+Stimuli: 52 5
+Display: 48 0001
+Stimuli: 53 6
+Display: 49 0010
+Stimuli: 54 7
+Display: 50 0011
+Stimuli: 55 -8
+Display: 51 0100
+Stimuli: 56 -7
+Display: 52 0101
+Stimuli: 57 -6
+Display: 53 0110
+Stimuli: 58 -5
+Display: 54 0111
+Stimuli: 59 -4
+Display: 55 1000
+Stimuli: 60 -3
+Display: 56 1001
+Stimuli: 61 -2
+Display: 57 1010
+Stimuli: 62 -1
+Display: 58 1011
+Stimuli: 63 0
+Display: 59 1100
+Stimuli: 64 1
+Display: 60 1101
+Stimuli: 65 2
+Display: 61 1110
+Stimuli: 66 3
+Display: 62 1111
+Stimuli: 67 4
+Display: 63 0000
+Stimuli: 68 5
+Display: 64 0001
+Stimuli: 69 6
+Display: 65 0010
+Stimuli: 70 7
+Display: 66 0011
+Stimuli: 71 -8
+Display: 67 0100
+Stimuli: 72 -7
+Display: 68 0101
+Stimuli: 73 -6
+Display: 69 0110
+Stimuli: 74 -5
+Display: 70 0111
+Stimuli: 75 -4
+Display: 71 1000
+Stimuli: 76 -3
+Display: 72 1001
+Stimuli: 77 -2
+Display: 73 1010
+Stimuli: 78 -1
+Display: 74 1011
+Stimuli: 79 0
+Display: 75 1100
+Stimuli: 80 1
+Display: 76 1101
+Stimuli: 81 2
+Display: 77 1110
+Stimuli: 82 3
+Display: 78 1111
+Stimuli: 83 4
+Display: 79 0000
+Stimuli: 84 5
+Display: 80 0001
+Stimuli: 85 6
+Display: 81 0010
+Stimuli: 86 7
+Display: 82 0011
+Stimuli: 87 -8
+Display: 83 0100
+Stimuli: 88 -7
+Display: 84 0101
+Stimuli: 89 -6
+Display: 85 0110
+Stimuli: 90 -5
+Display: 86 0111
+Stimuli: 91 -4
+Display: 87 1000
+Stimuli: 92 -3
+Display: 88 1001
+Stimuli: 93 -2
+Display: 89 1010
+Stimuli: 94 -1
+Display: 90 1011
+Stimuli: 95 0
+Display: 91 1100
+Stimuli: 96 1
+Display: 92 1101
+Stimuli: 97 2
+Display: 93 1110
+Stimuli: 98 3
+Display: 94 1111
+Stimuli: 99 4
+Display: 95 0000
+Stimuli: 100 5
+
+Info: /OSCI/SystemC: Simulation stopped by user.
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/main.cpp b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/main.cpp
new file mode 100644
index 000000000..89e3a7295
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/main.cpp
@@ -0,0 +1,87 @@
+/*****************************************************************************
+
+  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: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "stimulus.h"
+#include "display.h"
+#include "decrement.h"
+
+int sc_main(int argc , char *argv[]) {
+  sc_clock        clock;
+  sc_signal<bool> reset;
+  sc_signal<int>              stimulus_line1;
+  sc_signal_bool_vector       stimulus_line2;
+  sc_signal<bool>             input_valid;
+  sc_signal<bool>             ack;
+  sc_signal<bool>             output_valid;
+  sc_signal<int>              result_line1;
+  sc_signal_bool_vector       result_line2;
+
+  // initialization to fix regressions - ali
+  output_valid = false;
+
+  stimulus stimulus1("stimulus_block",
+                      clock,
+		      reset,
+                      stimulus_line1,
+                      stimulus_line2,
+		      input_valid,
+                      ack);
+
+  decrement decrement1( "process_body",
+                       clock, 
+		       reset,
+                       stimulus_line1,
+                       stimulus_line2,
+		       input_valid,
+                       ack,
+                       result_line1, 
+                       result_line2, 
+		       output_valid);
+
+  display  display1( "display_block",
+                       clock,
+		       result_line1,
+		       result_line2,
+		       output_valid);
+
+  sc_start();
+
+  return 0;
+}
+
+// EOF
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.cpp b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.cpp
new file mode 100644
index 000000000..924a46e69
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.cpp
@@ -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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  stimulus.cpp -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "stimulus.h"
+
+void stimulus::entry() {
+
+    reset.write(true);
+    wait();
+    reset.write(false);
+
+    int tmp1;
+    sc_signed tmp2(4);
+
+    tmp1 = 0;
+    tmp2 = "0001";
+
+
+    while(true){
+       out_valid.write(true);    
+       out_value1.write(tmp1);
+       out_value2.write(tmp2);
+       cout << "Stimuli: " << tmp1 << " " << tmp2 << endl;
+       tmp1 = tmp1 + 1;
+       tmp2 = tmp2 + 1;
+       do { wait(); } while (in_ack==false);
+       out_valid.write(false);
+       wait();
+    }
+}
+// EOF
diff --git a/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.h b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.h
new file mode 100644
index 000000000..92e32db22
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/cae_test/general/arith/subtract/decrement/stimulus.h
@@ -0,0 +1,78 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  stimulus.h -- 
+
+  Original Author: Rocco Jonack, Synopsys, Inc., 1999-07-14
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+#include "common.h"
+
+SC_MODULE( stimulus )
+{
+    SC_HAS_PROCESS( stimulus );
+
+    sc_in_clk clk;
+
+    sc_signal<bool>&             reset ;
+    sc_signal<int>&             out_value1;                        // Output  port
+    sc_signal_bool_vector&       out_value2;     // Output  port
+    sc_signal<bool>&             out_valid;                         // Output  port
+    const sc_signal<bool>&       in_ack;
+
+    //
+    // Constructor
+    //
+
+    stimulus(
+        sc_module_name    NAME,      // reference name
+        sc_clock&      CLK,          // clock
+        sc_signal<bool>&                   RESET,
+        sc_signal<int>&                    OUT_VALUE1,
+        sc_signal_bool_vector&             OUT_VALUE2,
+        sc_signal<bool>&                   OUT_VALID,
+        const sc_signal<bool>&             IN_ACK
+        )
+        : 
+          reset        (RESET),
+          out_value1    (OUT_VALUE1),
+          out_value2    (OUT_VALUE2),
+          out_valid     (OUT_VALID),
+          in_ack        (IN_ACK) 
+   {
+     clk          (CLK);
+	 SC_CTHREAD( entry, clk.pos() );
+   };
+  void entry();
+};
+// EOF