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Line 1... |
////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: butterfly_tb.cpp
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// Filename: butterfly_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 butterfly.v subfile of the generic
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// Purpose: A test-bench for the butterfly.v subfile of the generic
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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 butterfly.v
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// test butterfly.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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| Line 28... |
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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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Line 57... |
#define IWIDTH TST_BUTTERFLY_IWIDTH
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#define IWIDTH TST_BUTTERFLY_IWIDTH
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#define CWIDTH TST_BUTTERFLY_CWIDTH
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#define CWIDTH TST_BUTTERFLY_CWIDTH
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#define OWIDTH TST_BUTTERFLY_OWIDTH
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#define OWIDTH TST_BUTTERFLY_OWIDTH
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#define BFLYDELAY TST_BUTTERFLY_MPYDELAY
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#define BFLYDELAY TST_BUTTERFLY_MPYDELAY
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bool gbl_debug = false;
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class BFLY_TB {
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class BFLY_TB {
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public:
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public:
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Vbutterfly *m_bfly;
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Vbutterfly *m_bfly;
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VerilatedVcdC *m_trace;
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VerilatedVcdC *m_trace;
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unsigned long m_left[64], m_right[64];
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unsigned long m_left[64], m_right[64];
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Line 101... |
m_tickcount++;
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m_tickcount++;
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m_lastaux = m_bfly->o_aux;
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m_lastaux = m_bfly->o_aux;
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m_bfly->i_clk = 0;
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m_bfly->i_clk = 0;
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m_bfly->eval();
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m_bfly->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_bfly->i_clk = 1;
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m_bfly->i_clk = 1;
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m_bfly->eval();
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m_bfly->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_bfly->i_clk = 0;
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m_bfly->i_clk = 0;
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m_bfly->eval();
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m_bfly->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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if ((!m_syncd)&&(m_bfly->o_aux))
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if ((!m_syncd)&&(m_bfly->o_aux))
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m_offset = m_addr;
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m_offset = m_addr;
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Line 182... |
}
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}
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m_bfly->i_ce = 1;
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m_bfly->i_ce = 1;
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cetick();
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cetick();
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if (gbl_debug) {
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if ((m_bfly->o_aux)&&(!m_lastaux))
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if ((m_bfly->o_aux)&&(!m_lastaux))
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printf("\n");
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printf("\n");
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printf("n,k=%d,%3d: COEF=%0*lx, LFT=%0*x, RHT=%0*x, A=%d, OLFT =%0*lx, ORHT=%0*lx, AUX=%d\n",
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printf("n,k=%d,%3d: COEF=%0*lx, LFT=%0*x, RHT=%0*x, A=%d, OLFT =%0*lx, ORHT=%0*lx, AUX=%d\n",
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n,k,
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n,k,
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(2*CWIDTH+3)/4, ubits(m_bfly->i_coef, 2*CWIDTH),
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(2*CWIDTH+3)/4, ubits(m_bfly->i_coef, 2*CWIDTH),
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| Line 191... |
Line 194... |
(2*IWIDTH+3)/4, m_bfly->i_right,
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(2*IWIDTH+3)/4, m_bfly->i_right,
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m_bfly->i_aux,
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m_bfly->i_aux,
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(2*OWIDTH+3)/4, (long)m_bfly->o_left,
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(2*OWIDTH+3)/4, (long)m_bfly->o_left,
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(2*OWIDTH+3)/4, (long)m_bfly->o_right,
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(2*OWIDTH+3)/4, (long)m_bfly->o_right,
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m_bfly->o_aux);
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m_bfly->o_aux);
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}
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if ((m_syncd)&&(m_left[(m_addr-m_offset)&(64-1)] != m_bfly->o_left)) {
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if ((m_syncd)&&(m_left[(m_addr-m_offset)&(64-1)] != m_bfly->o_left)) {
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printf("WRONG O_LEFT! (%lx(exp) != %lx(sut)\n",
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printf("WRONG O_LEFT! (%lx(exp) != %lx(sut)\n",
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m_left[(m_addr-m_offset)&(64-1)],
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m_left[(m_addr-m_offset)&(64-1)],
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(long)m_bfly->o_left);
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(long)m_bfly->o_left);
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| Line 318... |
Line 322... |
int32_t smr, smi, dfr, dfi;
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int32_t smr, smi, dfr, dfi;
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int rnd = 0;
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int rnd = 0;
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const int TESTSZ = 256;
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const int TESTSZ = 256;
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|
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bfly->opentrace("butterfly.vcd");
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// bfly->opentrace("butterfly.vcd");
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|
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bfly->reset();
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bfly->reset();
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// #define ZEROTEST
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// #define ZEROTEST
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#define ZEROTEST bfly->test(9,0,0x0000000000l,0x00000000,0x00000000, 0)
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#define ZEROTEST bfly->test(9,0,0x0000000000l,0x00000000,0x00000000, 0)
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