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January 20, 2017 14:48
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//////////////////////////////////////////////////////////////////////////////// | |
// | |
// Filename: testb.h | |
// | |
// Project: Zip CPU -- a small, lightweight, RISC CPU core | |
// | |
// Purpose: A wrapper for a common interface to a clocked FPGA core | |
// begin exercised in Verilator. | |
// | |
// Creator: Dan Gisselquist, Ph.D. | |
// Gisselquist Technology, LLC | |
// | |
//////////////////////////////////////////////////////////////////////////////// | |
// | |
// Copyright (C) 2015, Gisselquist Technology, LLC | |
// | |
// This program is free software (firmware): you can redistribute it and/or | |
// modify it under the terms of the GNU General Public License as published | |
// by the Free Software Foundation, either version 3 of the License, or (at | |
// your option) any later version. | |
// | |
// This program is distributed in the hope that it will be useful, but WITHOUT | |
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or | |
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
// for more details. | |
// | |
// You should have received a copy of the GNU General Public License along | |
// with this program. (It's in the $(ROOT)/doc directory, run make with no | |
// target there if the PDF file isn't present.) If not, see | |
// <http://www.gnu.org/licenses/> for a copy. | |
// | |
// License: GPL, v3, as defined and found on www.gnu.org, | |
// http://www.gnu.org/licenses/gpl.html | |
// | |
// | |
//////////////////////////////////////////////////////////////////////////////// | |
#ifndef TESTB_H | |
#define TESTB_H | |
#include <verilated_vcd_c.h> | |
template <class VA> class TESTB { | |
public: | |
VA *m_core; | |
VerilatedVcdC* m_trace; | |
unsigned long m_tickcount; | |
TESTB(void) { m_core = new VA; m_trace = NULL; } | |
virtual ~TESTB(void) { | |
if (m_trace) m_trace->close(); | |
delete m_core; | |
m_core = NULL; | |
} | |
virtual void opentrace(const char *vcdname) { | |
m_trace = new VerilatedVcdC; | |
m_core->trace(m_trace, 99); | |
m_trace->open(vcdname); | |
} | |
virtual void eval(void) { | |
m_core->eval(); | |
} | |
virtual void tick(void) { | |
m_tickcount++; | |
eval(); | |
if (m_trace) m_trace->dump(10*m_tickcount-2); | |
m_core->i_clk = 1; | |
eval(); | |
if (m_trace) m_trace->dump(10*m_tickcount); | |
m_core->i_clk = 0; | |
eval(); | |
if (m_trace) m_trace->dump(10*m_tickcount+5); | |
} | |
virtual void reset(void) { | |
m_core->i_rst = 1; | |
tick(); | |
m_core->i_rst = 0; | |
m_tickcount = 0l; | |
// printf("RESET\n"); | |
} | |
}; | |
#endif |
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