private byte DetermineCartridgeMapperId(uint romCrc, byte romMapperId)
{
NstDatabaseEntry nstDatabaseEntry = nstDatabase[romCrc];
if (nstDatabaseEntry == null)
{
return(romMapperId);
}
if (nstDatabaseEntry.MapperId != romMapperId)
{
statusHistoryLabel.Text = "Incorrect Mapper ID detected (" + romMapperId + "), should be " + nstDatabaseEntry.MapperId;
}
return(nstDatabaseEntry.MapperId);
}
private bool LoadCartridgeRom(string cartridgeRomPath)
{
try
{
// save previous SRAM if applicable
if (this.cartridge != null && this.cartridge.SaveRam.Modified)
{
StoreSaveRam();
}
Stream cartridgeRomStream = GetCartridgeRomStream(cartridgeRomPath);
BinaryReader romBinaryReader = new BinaryReader(cartridgeRomStream);
Cartridge newCartridge = new Cartridge(romBinaryReader);
romBinaryReader.Close();
// load SRAM if file exists
this.cartridgeSaveRamFilename = ReplaceRomExtension(cartridgeRomPath, ".sram");
if (File.Exists(this.cartridgeSaveRamFilename))
{
BinaryReader saveRamBinaryReader = new BinaryReader(new FileStream(this.cartridgeSaveRamFilename, FileMode.Open));
newCartridge.SaveRam.Load(saveRamBinaryReader);
saveRamBinaryReader.Close();
statusHistoryLabel.Text = "SaveRam file detected and loaded";
}
Console.LoadCartridge(newCartridge);
this.cartridge = newCartridge;
this.cartridgeRomFilename = Path.GetFileNameWithoutExtension(cartridgeRomPath);
this.Text = cartridgeRomFilename + " - " + Application.ProductName;
// enable some menu items dependent on a loaded cartridge
filePropertiesMenuItem.Enabled = true;
gameMenuItem.Enabled = true;
optionsCheatsMenuItem.Enabled = true;
if (traceEnabled)
{
Console.Cartridge.Map.ProgramBankSwitch =
(address, size) => codeDisassemblyForm.InvalidateMemoryRange(address, size);
}
OnGameStop(this, EventArgs.Empty);
OnGameRunPause(this, EventArgs.Empty);
recentFileManager.AddRecentFile(cartridgeRomPath);
// set video file paths
this.videoPathMp4 = ReplaceRomExtension(cartridgeRomPath, ".mp4");
this.videoPathGif = ReplaceRomExtension(cartridgeRomPath, ".gif");
// set cursor to crosshairs if it is a gun-based game
cartridgeUsesGun = false;
NstDatabaseEntry nstDatabaseEntry = nstDatabase[cartridge.Crc];
if (nstDatabaseEntry != null && nstDatabaseEntry.Peripherals.Contains(Peripheral.Zapper))
{
cartridgeUsesGun = true;
}
videoPanel.Cursor = cartridgeUsesGun ? Cursors.Cross : Cursors.Default;
// load cheat file if present
cheatSystem.Clear();
string cheatFilePath = ReplaceRomExtension(cartridgeRomPath, ".cht");
if (File.Exists(cheatFilePath))
{
cheatSystem.Load(cheatFilePath);
statusHistoryLabel.Text = "Cheat file loaded";
}
return(true);
}
catch (Exception exception)
{
MessageBox.Show(this, "Unable to load cartridge rom. Reason: " + exception.Message, "Open Game ROM", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
