/// <summary>
/// Open a NES rom
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void openNesRom_Click(object sender, RoutedEventArgs e)
{
// Configure open file dialog box
OpenFileDialog dialog = new OpenFileDialog();
dialog.InitialDirectory = System.IO.Directory.GetCurrentDirectory();
dialog.Filter = "NES Roms (*.nes)|*.nes"; // Filter files by extension
dialog.FilterIndex = 1;
// Show open file dialog box
if (dialog.ShowDialog() == true)
{
cartridgeReader_ = new CartridgeReader(dialog.FileName);
filePath_ = dialog.FileName;
try
{
input1 = new Input();
input2 = new Input();
testCartridge_ = cartridgeReader_.readCart();
MMC3 mapper = new MMC3(testCartridge_);
ppu_ = PPU.Instance;
Memory.Create(2048, mapper, input1, input2);
mem_ = Memory.Instance;
CPU6502.Create(mem_);
cpu_ = CPU6502.Instance;
registerBox.Text = cpu_.ToString();
memoryBox.Text = mem_.ToString();
addressBox.Text = cpu_.CurrentAddress.ToString("X4");
Display.Source = BitmapToImageSource(ppu_.getFrame());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception!", MessageBoxButton.OK);
Debug.WriteLine(ex.StackTrace);
}
}
}
/*
* Load Rom File
*/
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
bool alreadyEmulating = Core.run;
Core.paused = true;
string filePath = (openFileDialog1.ShowDialog() == DialogResult.OK) ? openFileDialog1.FileName : "Error: No such file found.";
if (File.Exists(filePath))
{
if (alreadyEmulating)
{
NEST_Main.resetCore();
}
Core.rom = new Rom(File.ReadAllBytes(filePath));
Core.rom.romFilePath = filePath;
int mapperSetting = Core.rom.getMapperSetting();
if (mapperSetting == 0)
{
NROM.loadRom(Core.rom);
}
else if (mapperSetting == 1)
{
MMC1.loadRom(Core.rom);
}
else if (mapperSetting == 2)
{
UNROM.loadRom(Core.rom);
}
else if (mapperSetting == 3)
{
CNROM.loadRom(Core.rom);
}
else if (mapperSetting == 4)
{
MMC3.loadRom(Core.rom);
}
ushort resetAddress = 0;
resetAddress |= Core.cpu.readCPURam(0xFFFC, true);
resetAddress |= (ushort)(Core.cpu.readCPURam(0xFFFD, true) << 8);
Core.cpu.programCounter = resetAddress;
Core.run = true;
Core.paused = false;
if (emulatorThread == null)
{
emulatorThread = new Thread(global::NEST.Classes.NEST_Main.startEmulator);
emulatorThread.Start();
}
resumeToolStripMenuItem.Enabled = true;
pauseToolStripMenuItem.Enabled = true;
savesavFileToolStripMenuItem.Enabled = true;
string saveFilePath = filePath.Substring(0, filePath.LastIndexOf('.')) + ".sav";
if (File.Exists(saveFilePath))
{
loadSaveFile(saveFilePath);
}
}
else
{
MessageBox.Show("File not found at path: " + filePath);
}
}
