module rom_loader (
    output bit [7:0] memory[0:4095]
);

  import "DPI-C" function int load_rom();
  import "DPI-C" function bit [7:0] get_next_instr();
  import "DPI-C" function void close_rom();

  initial begin
    int rom_size = load_rom();
    $display("HW     : ROM size is %0d bytes (%0d bits) (%0d instructions)", rom_size,
             rom_size * 8, rom_size / 2);
    for (int i = 0; i < rom_size; i++) begin
      memory['h200+i] = get_next_instr();
    end
    close_rom();
    $display("HW     : ROM loaded successfully");
  end
endmodule