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////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: mpy_tb.cpp
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// Filename: mpy_tb.cpp
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//
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//
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// Project: A General Purpose Pipelined FFT Implementation
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// Project: A General Purpose Pipelined FFT Implementation
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//
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//
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// Purpose: A test-bench for the shift and add shiftaddmpy.v subfile of
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// Purpose: A test-bench for the shift and add shiftaddmpy.v subfile of
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// the double clocked FFT. This file may be run autonomously.
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// the double clocked FFT. This file may be run autonomously.
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// If so, the last line output will either read "SUCCESS" on
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// If so, the last line output will either read "SUCCESS" on success, or
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// success, or some other failure message otherwise.
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// some other failure message otherwise.
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//
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//
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// This file depends upon verilator to both compile, run, and
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// This file depends upon verilator to both compile, run, and therefore
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// therefore test shiftaddmpy.v
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// test shiftaddmpy.v
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//
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//
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// Creator: Dan Gisselquist, Ph.D.
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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// Gisselquist Technology, LLC
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//
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//
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///////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Copyright (C) 2015-2018, Gisselquist Technology, LLC
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// Copyright (C) 2015-2018, Gisselquist Technology, LLC
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//
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//
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// This program is free software (firmware): you can redistribute it and/or
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// modify it under the terms of the GNU General Public License as published
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with this program. (It's in the $(ROOT)/doc directory, run make with no
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// with this program. (It's in the $(ROOT)/doc directory. Run make with no
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// target there if the PDF file isn't present.) If not, see
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// target there if the PDF file isn't present.) If not, see
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// <http://www.gnu.org/licenses/> for a copy.
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// <http://www.gnu.org/licenses/> for a copy.
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//
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//
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// License: GPL, v3, as defined and found on www.gnu.org,
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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//
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//
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///////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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#include "verilated.h"
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#include "verilated.h"
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#include "verilated_vcd_c.h"
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#include "verilated_vcd_c.h"
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#include "fftsize.h"
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#include "fftsize.h"
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void tick(void) {
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void tick(void) {
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m_tickcount++;
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m_tickcount++;
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m_mpy->i_clk = 0;
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m_mpy->i_clk = 0;
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m_mpy->eval();
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m_mpy->eval();
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if (m_trace) m_trace->dump((uint64_t)(10ul*m_tickcount-2));
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if (m_trace) m_trace->dump((vluint64_t)(10ul*m_tickcount-2));
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m_mpy->i_clk = 1;
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m_mpy->i_clk = 1;
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m_mpy->eval();
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m_mpy->eval();
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if (m_trace) m_trace->dump((uint64_t)(10ul*m_tickcount));
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if (m_trace) m_trace->dump((vluint64_t)(10ul*m_tickcount));
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m_mpy->i_clk = 0;
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m_mpy->i_clk = 0;
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m_mpy->eval();
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m_mpy->eval();
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if (m_trace) {
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if (m_trace) {
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m_trace->dump((uint64_t)(10ul*m_tickcount+5));
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m_trace->dump((vluint64_t)(10ul*m_tickcount+5));
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m_trace->flush();
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m_trace->flush();
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}
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}
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}
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}
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void cetick(void) {
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void cetick(void) {
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int main(int argc, char **argv, char **envp) {
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int main(int argc, char **argv, char **envp) {
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Verilated::commandArgs(argc, argv);
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Verilated::commandArgs(argc, argv);
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MPYTB *tb = new MPYTB;
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MPYTB *tb = new MPYTB;
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tb->opentrace("mpy.vcd");
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// tb->opentrace("mpy.vcd");
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tb->reset();
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tb->reset();
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for(int k=0; k<15; k++) {
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for(int k=0; k<15; k++) {
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int a, b;
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int a, b;
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