From 16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f Mon Sep 17 00:00:00 2001
From: Gabe Black <gabeblack@google.com>
Date: Thu, 24 May 2018 01:37:55 -0700
Subject: 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>
---
 .../tests/systemc/misc/v1.0/dash7/speed.cpp        | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 src/systemc/tests/systemc/misc/v1.0/dash7/speed.cpp

(limited to 'src/systemc/tests/systemc/misc/v1.0/dash7/speed.cpp')

diff --git a/src/systemc/tests/systemc/misc/v1.0/dash7/speed.cpp b/src/systemc/tests/systemc/misc/v1.0/dash7/speed.cpp
new file mode 100644
index 000000000..10e29ce12
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/v1.0/dash7/speed.cpp
@@ -0,0 +1,111 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+ 
+  speed.cpp -- Definition of the speedometer.
+ 
+  Original Author: Ali Dasdan, Synopsys, Inc.
+ 
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+// $Log: speed.cpp,v $
+// Revision 1.1.1.1  2006/12/15 20:26:24  acg
+// systemc_tests-2.3
+//
+// Revision 1.3  2006/01/19 00:48:20  acg
+// Andy Goodrich: Changes for the fact signal write checking is enabled.
+//
+// Revision 1.2  2006/01/18 00:23:51  acg
+// Change over from SC_NO_WRITE_CHECK to sc_write_check_enable() call.
+//
+
+#define SC_NO_WRITE_CHECK
+#include "systemc.h"
+#include "const.h"
+#include "speed.h"
+
+// Find the elapsed_time between NUM_PULSES_FOR_SPEED pulses.
+void speed_mod::find_time_proc()
+{
+  if (start)
+    elapsed_time = elapsed_time + 1;
+  else
+    elapsed_time = 0;
+}
+
+// Compute speed.
+void
+speed_read_mod::read_speed_proc()
+{
+  wait();
+
+  while (true) {
+
+    // More than one pulse is needed to compute a distance and 
+    // consequently, speed. This function collects NUM_PULSES_FOR_SPEED
+    // pulses for that purpose.
+    AWAIT(NUM_PULSES_FOR_SPEED);
+
+    if (start)
+      raw_speed = DIST_BETWEEN_TWO_PULSES * PERIODS_PER_HOUR / elapsed_time;
+    else
+      raw_speed = 0.0;
+
+    // Reset timer.
+    elapsed_time = 0;
+  }
+}
+
+// Filter speed.
+void 
+speed_read_mod::filter_speed_proc()
+{
+  if (start)
+    filtered_speed = raw_speed;  
+  else
+    filtered_speed = 0.0;
+}
+
+// Compute needle angle and drive the speedometer.
+void 
+speed_pwm_mod::pwm_driver_proc()
+{
+  if (start) {
+    speed = filtered_speed; 
+    angle = filtered_speed * MAX_ANGLE / MAX_SPEED;
+  }
+  else {
+    speed = 0.0;
+    angle = 0.0;
+  }
+}
+
+
+// End of file
-- 
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