ibex/examples/simple_system/ibex_simple_system.cc
2020-07-06 10:31:58 +01:00

53 lines
1.6 KiB
C++

// Copyright lowRISC contributors.
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
#include <fstream>
#include <iostream>
#include "ibex_pcounts.h"
#include "verilated_toplevel.h"
#include "verilator_memutil.h"
#include "verilator_sim_ctrl.h"
int main(int argc, char **argv) {
ibex_simple_system top;
VerilatorMemUtil memutil;
VerilatorSimCtrl &simctrl = VerilatorSimCtrl::GetInstance();
simctrl.SetTop(&top, &top.IO_CLK, &top.IO_RST_N,
VerilatorSimCtrlFlags::ResetPolarityNegative);
memutil.RegisterMemoryArea(
"ram", "TOP.ibex_simple_system.u_ram.u_ram.gen_generic.u_impl_generic");
simctrl.RegisterExtension(&memutil);
bool exit_app = false;
int ret_code = simctrl.ParseCommandArgs(argc, argv, exit_app);
if (exit_app) {
return ret_code;
}
std::cout << "Simulation of Ibex" << std::endl
<< "==================" << std::endl
<< std::endl;
simctrl.RunSimulation();
if (!simctrl.WasSimulationSuccessful()) {
return 1;
}
// Set the scope to the root scope, the ibex_pcount_string function otherwise
// doesn't know the scope itself. Could be moved to ibex_pcount_string, but
// would require a way to set the scope name from here, similar to MemUtil.
svSetScope(svGetScopeFromName("TOP.ibex_simple_system"));
std::cout << "\nPerformance Counters" << std::endl
<< "====================" << std::endl;
std::cout << ibex_pcount_string(false);
std::ofstream pcount_csv("ibex_simple_system_pcount.csv");
pcount_csv << ibex_pcount_string(true);
return 0;
}