public EmptyRom()
    {
        RomMapMode = RomMapMode.LoRom;
        RomSpeed   = RomSpeed.FastRom;

        // note: slow.
        while (RomBytes.Count < 0xFFFF * 64)
        {
            RomBytes.Add(new RomByte());
        }
    }
 public void Defaults()
 {
     Run();
     generatedSettings !.RomBytes.Should().BeEquivalentTo(sampleDataFixture.SampleRomBytes);
     generatedSettings.RomFilename.Should().Be(RomFilename);
 }