public void ReadSector(IntPtr destinationBuffer, int sectorNumber)
{
FreeDOCore.SetAnvilFix(2);
// Set fix for anvil bios
}
public void Start(string biosRom1FileName, string biosRom2FileName, IGameSource gameSource, string nvramFileName)
{
int fixMode = 0;
///////////
// If they haven't initialized us properly, complain!
if (!this.maxLagTicks.HasValue)
{
throw new InvalidOperationException("Audio buffer not set!");
}
if (!this.cpuClockHertz.HasValue)
{
throw new InvalidOperationException("CPU Clock speed not set!");
}
if (!this.renderHighResolution.HasValue)
{
throw new InvalidOperationException("High resolution setting not set!");
}
// Are we already started?
if (this.workerThread != null)
{
return;
}
this.GameSource = gameSource;
//////////////
// Attempt to load Bios #1.
try
{
this.biosRom1Copy = System.IO.File.ReadAllBytes(biosRom1FileName);
}
catch
{
throw new BadBiosRom1Exception();
}
// Also get outta here if it's not the right length.
if (this.biosRom1Copy.Length != ROM1_SIZE)
{
throw new BadBiosRom1Exception();
}
if (this.biosRom1Copy[28] == 234)
{
FreeDOCore.SetAnvilFix(30);
} //bios anvil
//////////////
// Attempt to load Bios #2.
// If we don't load Bios #2, we'll just use all zeroes.
this.biosRom2Copy = new byte[ROM2_SIZE]; // Allocate full size to get all 0's
// Load from file, if a file was chosen
byte[] biosRom2Bytes = null;
if (!string.IsNullOrWhiteSpace(biosRom2FileName))
{
try
{
biosRom2Bytes = System.IO.File.ReadAllBytes(biosRom2FileName);
}
catch
{
throw new BadBiosRom2Exception();
}
// Bios #2 is allowed to be less than or equal to the right size.
// The only example file I know of is less than (912KB) the actual size on the hardware (1MB).
if (biosRom2Bytes.Length > ROM2_SIZE || biosRom2Bytes.Length == 0)
{
throw new BadBiosRom2Exception();
}
// Copy to the member variable.
biosRom2Bytes.CopyTo(this.biosRom2Copy, 0);
}
//////////////
// Load a copy of the nvram.
try
{
// If we previously had a game open, and they have now loaded
// a new game, we want to make sure the game that was previously
// open does not accidentally save.
lock (nvramCopySemaphore)
{
// Note that we copy to the OLD nvram file name, just in case.
if (this.nvramTimer.Enabled == true)
{
Memory.WriteMemoryDump(this.nvramFileName, this.nvramCopyPtr, NVRAM_SIZE);
}
this.nvramTimer.Enabled = false;
// Read the new NVRAM into memory.
Memory.ReadMemoryDump(this.nvramCopy, nvramFileName, NVRAM_SIZE);
}
}
catch
{
throw new BadNvramFileException();
}
// Freak out if the nvram isn't the right size.
if (this.nvramCopy.Length != NVRAM_SIZE)
{
throw new BadNvramFileException();
}
// Remember the file name.
this.nvramFileName = nvramFileName;
//////////////
// Attempt to start up the game source (it is allowed to throw errors).
try
{
this.GameSource.Open();
}
catch
{
throw new BadGameRomException();
}
FreeDOCore.SetFixMode(fixMode);
/////////////////
// Initialize the core
FreeDOCore.Initialize();
////////////////
// Set fix mode
GameRecord record = GameRegistrar.GetGameRecordById(this.GameSource.GetGameId());
if (record != null)
{
if (
record.Id == "F3AF1B13" || // Crash 'n Burn (JP)
record.Id == "217344B0" // Crash 'n Burn (US)
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_TIMING_1;
}
if (record.Id == "DBB419FA" || // Street Figthter 2, for intro sync
record.Id == "07C32F10" ||// Street Figthter 2, for intro sync
record.Id == "5282889F" ||// Street Figthter 2, for intro sync
record.Id == "7340307E" // Street Figthter 2, for intro sync
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_TIMING_2;
}
if (record.Id == "CB8EE795" // Dinopark Tycoon
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_TIMING_3;
}
if (record.Id == "1A370EBA" || // Microcosm
record.Id == "B35C911D"// Microcosm
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_TIMING_5;
}
if (record.Id == "0511D3D2" || // Alone in the Dark
record.Id == "9F7D72BC" ||// Alone in the Dark
record.Id == "E843C635"// Alone in the Dark
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_TIMING_6;
}
if (record.Id == "2AABA5B9" || // Samurai Shodown (EU-US)
record.Id == "BF61BB32" // Samurai Shodown (JP)
)
{
fixMode = fixMode | (int)FixMode.FIX_BIT_GRAPHICS_STEP_Y;
}
}
FreeDOCore.SetFixMode(fixMode);
/////////////////
// Start the core thread
this.InternalResume(false);
}