diff options
Diffstat (limited to 'src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2')
13 files changed, 903 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad.cpp new file mode 100644 index 000000000..7664893a5 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/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 diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad.h b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad.h new file mode 100644 index 000000000..dd25ed436 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad.h @@ -0,0 +1,79 @@ +/***************************************************************************** + + 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.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 biquad.h */ +/* This is the interface file for synchronous process `biquad' */ + +#include "systemc.h" + +SC_MODULE( biquad ) +{ + SC_HAS_PROCESS( biquad ); + + sc_in_clk clk; + + sc_in<float> in; + sc_in<bool> reset; + sc_out<float> out; + + int num_taps; //internal variable + float Del[4]; //internal variable + float Cte[5]; //internal variable + + // Constructor + biquad( sc_module_name NAME, + sc_clock& CLK, + sc_signal<float>& IN1, + sc_signal<bool>& RESET, + sc_signal<float>& OUT1 ) + { + clk(CLK); + in(IN1); reset(RESET); out(OUT1); + SC_CTHREAD( entry, clk.pos() ); + reset_signal_is(reset,true); + // initialize the coefficient matrix + Cte[0] = 1.0; + Cte[1] = 2.0; + Cte[2] = 1.0; + Cte[3] = 0.75; + Cte[4] = -0.125; + Del[0] = Del[1] = Del[2] = Del[3] = 0.0; + } + + // Process functionality in member function below + void entry(); +}; diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad2.f b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad2.f new file mode 100644 index 000000000..3afa2d3b8 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/biquad2.f @@ -0,0 +1,6 @@ +biquad2/biquad.cpp +biquad2/delay_line.cpp +biquad2/getres.cpp +biquad2/main.cpp +biquad2/op_queue.cpp +biquad2/testbench.cpp diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.cpp new file mode 100644 index 000000000..8a5d03a82 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.cpp @@ -0,0 +1,55 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + delay_line.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 delay_line.cc */ +/* This is the implementation file for synchronous process `delay_line' */ + +#include "delay_line.h" + +void delay_line::entry() +{ + for( int i = 0; i < delay; ++ i ) { + line[i] = 0; + } + while (true) { + out.write(line[delay-1]); + for (int i = delay - 1; i > 0; i--) + line[i] = line[i-1]; + line[0] = in.read(); + wait(); + } +} // end of entry function diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.h b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.h new file mode 100644 index 000000000..931a3a526 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/delay_line.h @@ -0,0 +1,70 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + delay_line.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 delay_line.h */ +/* This is the interface file for synchronous process `delay_line' */ + +#include "systemc.h" + +SC_MODULE( delay_line ) +{ + SC_HAS_PROCESS( delay_line ); + + sc_in_clk clk; + + sc_in<float> in; + sc_out<float> out; + + const int delay; //internal variable + float *line; // delay line + + // Constructor + delay_line( sc_module_name NAME, + sc_clock& CLK, + sc_signal<float>& IN1, + sc_signal<float>& OUT1, + int DELAY=4 ) : delay(DELAY) + { + clk(CLK); + in(IN1); out(OUT1); + SC_CTHREAD( entry, clk.pos() ); + line = new float[delay]; + } + + // Process functionality in member function below + void entry(); +}; diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.cpp new file mode 100644 index 000000000..2b54423e2 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.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. + + *****************************************************************************/ + +/***************************************************************************** + + getres.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 getres.cc */ +/* This is the implementation file for synchronous process `getres' */ + +#include "getres.h" + +void getres::entry() +{ + while (true) { + pop.write(true); + wait(); + char buf[BUFSIZ]; + sprintf( buf, "Result = %f", result.read() ); + cout << buf << endl; + } +} // end of entry function diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.h b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.h new file mode 100644 index 000000000..d3ba7279b --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/getres.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. + + *****************************************************************************/ + +/***************************************************************************** + + getres.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 getres.h */ +/* This is the interface file for synchronous process `getres' */ + +#include "systemc.h" + +SC_MODULE( getres ) +{ + SC_HAS_PROCESS( getres ); + + sc_in_clk clk; + + sc_in<float> result; + sc_out<bool> pop; + + // Constructor + getres( sc_module_name NAME, + sc_clock& CLK, + sc_signal<float>& RESULT, + sc_signal<bool>& POP ) + { + clk(CLK); + result(RESULT); + pop(POP); + SC_CTHREAD( entry, clk.pos() ); + } + + // Process functionality in member function below + void entry(); +}; diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/golden/biquad2.log b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/golden/biquad2.log new file mode 100644 index 000000000..e7ab8cd52 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/golden/biquad2.log @@ -0,0 +1,100 @@ +SystemC Simulation +Result = 0.000000 +Result = 0.000000 +Result = 0.000000 +Result = 0.000000 +Result = 0.000000 +Result = 0.000000 +Input = 0.000000 Output = 0.000000 Result = 0.000000 +Input = 0.062791 Output = 0.000000 Result = 0.000000 +Input = 0.125333 Output = 0.000061 Result = 0.000000 +Input = 0.187381 Output = 0.000245 Result = 0.000000 +Input = 0.248690 Output = 0.000489 Result = 0.000000 +Input = 0.309017 Output = 0.000732 Result = 0.000000 +Input = 0.368125 Output = 0.000971 Result = 0.000000 +Input = 0.425779 Output = 0.001207 Result = 0.000000 +Input = 0.481754 Output = 0.001437 Result = 0.000000 +Input = 0.535827 Output = 0.001662 Result = 0.000061 +Input = 0.587785 Output = 0.001881 Result = 0.000245 +Input = 0.637424 Output = 0.002092 Result = 0.000489 +Input = 0.684547 Output = 0.002295 Result = 0.000732 +Input = 0.728969 Output = 0.002489 Result = 0.000971 +Input = 0.770513 Output = 0.002673 Result = 0.001207 +Input = 0.809017 Output = 0.002846 Result = 0.001437 +Input = 0.844328 Output = 0.003009 Result = 0.001662 +Input = 0.876307 Output = 0.003159 Result = 0.001881 +Input = 0.904827 Output = 0.003297 Result = 0.002092 +Input = 0.929776 Output = 0.003422 Result = 0.002295 +Input = 0.951056 Output = 0.003533 Result = 0.002489 +Input = 0.968583 Output = 0.003631 Result = 0.002673 +Input = 0.982287 Output = 0.003714 Result = 0.002846 +Input = 0.992115 Output = 0.003782 Result = 0.003009 +Input = 0.998027 Output = 0.003836 Result = 0.003159 +Input = 1.000000 Output = 0.003874 Result = 0.003297 +Input = 0.998027 Output = 0.003897 Result = 0.003422 +Input = 0.992115 Output = 0.003905 Result = 0.003533 +Input = 0.982287 Output = 0.003897 Result = 0.003631 +Input = 0.968583 Output = 0.003874 Result = 0.003714 +Input = 0.951057 Output = 0.003836 Result = 0.003782 +Input = 0.929777 Output = 0.003782 Result = 0.003836 +Input = 0.904827 Output = 0.003714 Result = 0.003874 +Input = 0.876307 Output = 0.003631 Result = 0.003897 +Input = 0.844328 Output = 0.003533 Result = 0.003905 +Input = 0.809017 Output = 0.003422 Result = 0.003897 +Input = 0.770513 Output = 0.003297 Result = 0.003874 +Input = 0.728969 Output = 0.003159 Result = 0.003836 +Input = 0.684547 Output = 0.003009 Result = 0.003782 +Input = 0.637424 Output = 0.002847 Result = 0.003714 +Input = 0.587785 Output = 0.002673 Result = 0.003631 +Input = 0.535827 Output = 0.002489 Result = 0.003533 +Input = 0.481754 Output = 0.002295 Result = 0.003422 +Input = 0.425779 Output = 0.002092 Result = 0.003297 +Input = 0.368125 Output = 0.001881 Result = 0.003159 +Input = 0.309017 Output = 0.001663 Result = 0.003009 +Input = 0.248690 Output = 0.001438 Result = 0.002847 +Input = 0.187381 Output = 0.001207 Result = 0.002673 +Input = 0.125333 Output = 0.000971 Result = 0.002489 +Input = 0.062791 Output = 0.000732 Result = 0.002295 +Input = 0.000000 Output = 0.000490 Result = 0.002092 +Input = -0.062790 Output = 0.000245 Result = 0.001881 +Input = -0.125333 Output = 0.000000 Result = 0.001663 +Input = -0.187381 Output = -0.000245 Result = 0.001438 +Input = -0.248690 Output = -0.000489 Result = 0.001207 +Input = -0.309017 Output = -0.000732 Result = 0.000971 +Input = -0.368124 Output = -0.000971 Result = 0.000732 +Input = -0.425779 Output = -0.001207 Result = 0.000490 +Input = -0.481754 Output = -0.001437 Result = 0.000245 +Input = -0.535827 Output = -0.001662 Result = 0.000000 +Input = -0.587785 Output = -0.001881 Result = -0.000245 +Input = -0.637424 Output = -0.002092 Result = -0.000489 +Input = -0.684547 Output = -0.002295 Result = -0.000732 +Input = -0.728969 Output = -0.002489 Result = -0.000971 +Input = -0.770513 Output = -0.002673 Result = -0.001207 +Input = -0.809017 Output = -0.002846 Result = -0.001437 +Input = -0.844328 Output = -0.003009 Result = -0.001662 +Input = -0.876307 Output = -0.003159 Result = -0.001881 +Input = -0.904827 Output = -0.003297 Result = -0.002092 +Input = -0.929776 Output = -0.003422 Result = -0.002295 +Input = -0.951056 Output = -0.003533 Result = -0.002489 +Input = -0.968583 Output = -0.003631 Result = -0.002673 +Input = -0.982287 Output = -0.003714 Result = -0.002846 +Input = -0.992115 Output = -0.003782 Result = -0.003009 +Input = -0.998027 Output = -0.003836 Result = -0.003159 +Input = -1.000000 Output = -0.003874 Result = -0.003297 +Input = -0.998027 Output = -0.003897 Result = -0.003422 +Input = -0.992115 Output = -0.003905 Result = -0.003533 +Input = -0.982287 Output = -0.003897 Result = -0.003631 +Input = -0.968583 Output = -0.003874 Result = -0.003714 +Input = -0.951057 Output = -0.003836 Result = -0.003782 +Input = -0.929777 Output = -0.003782 Result = -0.003836 +Input = -0.904827 Output = -0.003714 Result = -0.003874 +Input = -0.876307 Output = -0.003631 Result = -0.003897 +Input = -0.844328 Output = -0.003533 Result = -0.003905 +Input = -0.809017 Output = -0.003422 Result = -0.003897 +Input = -0.770513 Output = -0.003297 Result = -0.003874 +Input = -0.728969 Output = -0.003159 Result = -0.003836 +Input = -0.684547 Output = -0.003009 Result = -0.003782 +Input = -0.637424 Output = -0.002847 Result = -0.003714 +Input = -0.587785 Output = -0.002673 Result = -0.003631 +Input = -0.535827 Output = -0.002489 Result = -0.003533 +Input = -0.481754 Output = -0.002295 Result = -0.003422 diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/main.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/main.cpp new file mode 100644 index 000000000..d7924c12b --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/main.cpp @@ -0,0 +1,77 @@ +/***************************************************************************** + + 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 biquad simulation */ + +#include "testbench.h" +#include "biquad.h" +#include "delay_line.h" +#include "op_queue.h" +#include "getres.h" + +int +sc_main(int ac, char *av[]) +{ + sc_signal<float> sample; + sc_signal<float> result; + sc_signal<float> delayed_out; + sc_signal<float> final_out; + sc_signal<bool> reset; + sc_signal<bool> pop; + + sample = 0.0; + result = 0.0; + delayed_out = 0.0; + final_out = 0.0; + pop = false; + + sc_clock clk("Clock", CLOCK_PERIOD, SC_NS); + + testbench TB("TB", clk, result, reset, sample); + biquad filter("BFILTER", clk, sample, reset, result); + delay_line D("Delay", clk, result, delayed_out); + op_queue OPQ("OPQueue", clk, delayed_out, pop, final_out, 1000); + getres OP("OPStage", clk, final_out, pop); + + int n; + if (ac == 2) + n = atoi(av[1]); + else + n = 10000; + sc_start(n, SC_NS); + return 0; +} diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.cpp b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.cpp new file mode 100644 index 000000000..082cd93ac --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.cpp @@ -0,0 +1,83 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + op_queue.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 op_queue.cc */ +/* This is the implementation file for synchronous process `op_queue' */ + +#include "op_queue.h" + +// Queue management. Assuming a circular queue. + +void op_queue::entry() +{ + bool to_pop; + int tail, head; + bool queue_empty = true; + bool queue_full = false; + + out = 0.0; + + head = 0; + tail = 0; + while (true) { + if (!queue_full) { + queue[tail] = in.read(); + tail = (tail + 1) % queue_size; + queue_empty = false; + if (tail == head) queue_full = true; + } + else { + cout << "Warning: Data is being lost because queue is full" << endl; + } + + to_pop = pop.read(); + if (to_pop) { + if (!queue_empty) { + out.write(queue[head]); + head = (head + 1) % queue_size; + queue_full = false; + if (head == tail) queue_empty = true; + } + else { + cout << "Warning: No data in queue to be popped" << endl; + } + } + + wait(); + } + +} // end of entry function diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.h b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.h new file mode 100644 index 000000000..041dd7220 --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/op_queue.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. + + *****************************************************************************/ + +/***************************************************************************** + + op_queue.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 op_queue.h */ +/* This is the interface file for synchronous process `op_queue' */ + +#include "systemc.h" + +SC_MODULE( op_queue ) +{ + SC_HAS_PROCESS( op_queue ); + + sc_in_clk clk; + + sc_in<float> in; + sc_in<bool> pop; + sc_out<float> out; + + const int queue_size; //internal variable + float *queue; //internal variable + + // Constructor + op_queue( sc_module_name NAME, + sc_clock& CLK, + sc_signal<float>& IN1, + sc_signal<bool>& POP, + sc_signal<float>& OUT1, + int QUEUE_SIZE = 4 ) + : queue_size(QUEUE_SIZE) + { + clk(CLK); + in(IN1); + pop(POP); + out(OUT1); + SC_CTHREAD( entry, clk.pos() ); + queue = new float[queue_size]; + } + + // Process functionality in member function below + void entry(); +}; 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)); +} diff --git a/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.h b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.h new file mode 100644 index 000000000..121a7552c --- /dev/null +++ b/src/systemc/tests/systemc/misc/sim_tests/biquad/biquad2/testbench.h @@ -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. + + *****************************************************************************/ + +/***************************************************************************** + + testbench.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 testbench.h */ +/* This is the interface file for synchronous process `testbench' */ + +#include "systemc.h" + +SC_MODULE( testbench ) +{ + SC_HAS_PROCESS( testbench ); + + sc_in_clk clk; + + sc_in<float> result; + sc_out<bool> reset; + sc_out<float> sample; + + // Constructor + testbench( sc_module_name NAME, + sc_clock& CLK, + sc_signal<float>& RESULT, + sc_signal<bool>& RESET, + sc_signal<float>& SAMPLE ) + { + clk(CLK); + result(RESULT); reset(RESET); sample(SAMPLE); + SC_CTHREAD( entry, clk.pos() ); + } + + // Process functionality in member function below + void entry(); +}; + +#define CLOCK_PERIOD 100 |