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////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: laststage_tb.cpp
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// Filename: laststage_tb.cpp
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//
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//
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// Project: A Doubletime Pipelined FFT
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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 laststage.v subfile of the general purpose
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// Purpose: A test-bench for the laststage.v subfile of the general purpose
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// pipelined FFT. This file may be run autonomously. If so,
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// pipelined FFT. This file may be run autonomously. If so,
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// the last line output will either read "SUCCESS" on success, or some
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// the last line output will either read "SUCCESS" on success, or some
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// other failure message otherwise.
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// other failure message otherwise.
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// test laststage.v
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// test laststage.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 <stdio.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdint.h>
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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 "Vlaststage.h"
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#include "Vlaststage.h"
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#include "fftsize.h"
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#include "twoc.h"
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#include "twoc.h"
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#define IWIDTH 16
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#define IWIDTH 16
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#define OWIDTH (IWIDTH+1)
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#define OWIDTH (IWIDTH+1)
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#define SHIFT 0
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#define SHIFT 0
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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_last->i_clk = 0;
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m_last->i_clk = 0;
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m_last->eval();
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m_last->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_last->i_clk = 1;
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m_last->i_clk = 1;
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m_last->eval();
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m_last->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_last->i_clk = 0;
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m_last->i_clk = 0;
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m_last->eval();
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m_last->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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m_last->i_reset = 0;
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m_last->i_reset = 0;
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m_last->i_sync = 0;
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m_last->i_sync = 0;
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}
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}
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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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LASTSTAGE_TB *tb = new LASTSTAGE_TB;
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LASTSTAGE_TB *tb = new LASTSTAGE_TB;
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tb->opentrace("laststage.vcd");
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// tb->opentrace("laststage.vcd");
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tb->reset();
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tb->reset();
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tb->sync();
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tb->sync();
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tb->test( 1, 0,0,0);
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tb->test( 1, 0,0,0);
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