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author | Gabe Black <gabeblack@google.com> | 2018-05-24 01:37:55 -0700 |
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committer | Gabe Black <gabeblack@google.com> | 2018-08-08 10:09:54 +0000 |
commit | 16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f (patch) | |
tree | 7b6faaacb4574a555e561534aa4a8508c0624c32 /src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp | |
parent | 7235d3b5211d0ba8f528d930a4c1e7ad62eec51a (diff) | |
download | gem5-16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f.tar.xz |
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>
Diffstat (limited to 'src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp')
-rw-r--r-- | src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp new file mode 100644 index 000000000..983bada92 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.cpp @@ -0,0 +1,104 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + testbench.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 testbench.cc */ +/* This is the implementation file for synchronous process `testbench' */ + +#include "testbench.h" + +float gen_sample(float t); + +void testbench::entry() +{ + float sample_val; + float result_val; + float time; + + FILE *data1 = fopen("Sample", "w"); + FILE *data2 = fopen("Result", "w"); + + reset.write(true); + wait(5); + reset.write(false); + wait(); + + time = 0.0; + while (true) { + sample_val = gen_sample(time); + sample.write(sample_val); + wait(); + result_val = result.read(); + fprintf(data1, "%f\t%f\n", time, sample_val); + fprintf(data2, "%f\t%f\n", time, result_val); + char buf[BUFSIZ]; + sprintf( buf, "Input = %f\tOutput = %f\t", sample_val, result_val ); + cout << buf << flush; + time += 1.0; + } +} // end of entry function + + +float +gen_step(float t) +{ + if (t < 10.0) + return (0.0); + else + return (1.0); +} + +float +gen_impulse(float t) +{ + if (t == 20.00) + return (1.00); + else + return (0.00); +} + +float +gen_sine(float t, float freq) // freq in Hertz +{ + return sin(6.283185 * freq * t * CLOCK_PERIOD * 1e-9); +} + +// This function actually generates the samples +float +gen_sample(float t) +{ + return (gen_sine(t, 100000)); +} |