#include "Vtop.h"
#include "verilated.h"

#include <stdint.h>
#include <iostream>
#include <random>

#include "verilated_vcd_c.h"

struct state {
    VerilatedContext *ctx;
    Vtop *vtop;
    VerilatedVcdC *trace;
};

void posedge(state &state) {
    state.ctx->timeInc(1);
    state.vtop->clk_12m = 1;
    state.vtop->eval();
    state.trace->dump(state.ctx->time());

    state.ctx->timeInc(1);
    state.vtop->clk_12m = 0;
    state.vtop->eval();
    state.trace->dump(state.ctx->time());
}

int main(int argc, char **argv) {
    VerilatedContext *vctx = new VerilatedContext;
    Verilated::traceEverOn(true);
    Vtop *vtop = new Vtop(vctx);

    if (argc != 2) {
        std::cout << "Run with argument for destination!" << std::endl;
        return 1;
    }

    VerilatedVcdC *trace = new VerilatedVcdC;
    vtop->trace(trace, 99);
    trace->open(argv[1]);
    std::cout << "(writing trace to " << argv[1] << ")" << std::endl;

    state state = {
        .ctx = vctx,
        .vtop = vtop,
        .trace = trace,
    };


    for (int i = 0; i < 2<<24; i++) {
        posedge(state);
    }

    state.trace->close();
}