verilator/test_regress/t/t_trace_cat.cpp

// -*- mode: C++; c-file-style: "cc-mode" -*-
//
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2008 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

#include <verilated.h>
#include <verilated_vcd_c.h>

#include <memory>

#include VM_PREFIX_INCLUDE

unsigned long long main_time = 0;
double sc_time_stamp() { return (double)main_time; }

const char* trace_name() {
    static char name[1000];
    VL_SNPRINTF(name, 1000, VL_STRINGIFY(TEST_OBJ_DIR) "/simpart_%04d.vcd", (int)main_time);
    return name;
}

int main(int argc, char** argv) {
    Verilated::debug(0);
    Verilated::traceEverOn(true);
    Verilated::commandArgs(argc, argv);

    std::unique_ptr<VM_PREFIX> top{new VM_PREFIX("top")};

    std::unique_ptr<VerilatedVcdC> tfp{new VerilatedVcdC};
    top->trace(tfp.get(), 99);

    tfp->open(trace_name());

    top->clk = 0;

    while (main_time < 190) {  // Creates 2 files
        top->clk = !top->clk;
        top->eval();

        if ((main_time % 100) == 0) {
#if defined(T_TRACE_CAT)
            tfp->openNext(true);
#elif defined(T_TRACE_CAT_REOPEN)
            tfp->close();
            tfp->open(trace_name());
#elif defined(T_TRACE_CAT_RENEW)
            tfp->close();
            tfp.reset(new VerilatedVcdC);
            top->trace(tfp.get(), 99);
            tfp->open(trace_name());
#else
#error "Unknown test"
#endif
        }
        tfp->dump((unsigned int)(main_time));
        ++main_time;
    }
    tfp->close();
    top->final();
    tfp.reset();
    top.reset();
    printf("*-* All Finished *-*\n");
    return 0;
}