From 16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f Mon Sep 17 00:00:00 2001 From: Gabe Black 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 Maintainer: Gabe Black --- .../misc/sim_tests/biquad/biquad1/biquad.cpp | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 src/systemc/tests/systemc/misc/sim_tests/biquad/biquad1/biquad.cpp (limited to 'src/systemc/tests/systemc/misc/sim_tests/biquad/biquad1/biquad.cpp') diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad1/biquad.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad1/biquad.cpp new file mode 100644 index 000000000..b2ba3b644 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad1/biquad.cpp @@ -0,0 +1,67 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + biquad.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 biquad.cc */ +/* This is the implementation file for synchronous process `biquad' */ + +#include "biquad.h" + +void biquad::entry() +{ + float Acc; // Accumulator + float sample; // Input sample + + if ((bool) reset == true) { + Del[0] = Del[1] = Del[2] = Del[3] = 0.0; + out.write(0.0); + wait(); + } + + while (true) { + sample = in.read(); + Acc = Cte[0] * sample; + for (int i = 0; i < 4; i++) { + Acc += Cte[i+1] * Del[i]; + } + // Acc = Acc / 1024.0; + Del[1] = Del[0]; Del[0] = sample; + Del[3] = Del[2]; Del[2] = Acc; + out.write(Acc); + wait(); + } + +} // end of entry function -- cgit v1.2.3