public SMS(CoreComm comm, GameInfo game, byte[] rom, object settings, object syncSettings)
{
Settings = (SMSSettings)settings ?? new SMSSettings();
SyncSettings = (SMSSyncSettings)syncSettings ?? new SMSSyncSettings();
CoreComm = comm;
IsGameGear = game.System == "GG";
IsSG1000 = game.System == "SG";
RomData = rom;
CoreComm.CpuTraceAvailable = true;
if (RomData.Length % BankSize != 0)
Array.Resize(ref RomData, ((RomData.Length / BankSize) + 1) * BankSize);
RomBanks = (byte)(RomData.Length / BankSize);
DisplayType = DetermineDisplayType(SyncSettings.DisplayType, game.Region);
if (game["PAL"] && DisplayType != DisplayType.PAL)
{
DisplayType = DisplayType.PAL;
CoreComm.Notify("Display was forced to PAL mode for game compatibility.");
}
if (IsGameGear)
DisplayType = DisplayType.NTSC; // all game gears run at 60hz/NTSC mode
CoreComm.VsyncNum = DisplayType == DisplayType.NTSC ? 60 : 50;
CoreComm.VsyncDen = 1;
Region = SyncSettings.ConsoleRegion;
if (Region == "Auto") Region = DetermineRegion(game.Region);
if (game["Japan"] && Region != "Japan")
{
Region = "Japan";
CoreComm.Notify("Region was forced to Japan for game compatibility.");
}
if ((game.NotInDatabase || game["FM"]) && SyncSettings.EnableFM && !IsGameGear)
HasYM2413 = true;
if (Controller == null)
Controller = NullController.GetNullController();
Cpu = new Z80A();
Cpu.RegisterSP = 0xDFF0;
Cpu.ReadHardware = ReadPort;
Cpu.WriteHardware = WritePort;
Vdp = new VDP(this, Cpu, IsGameGear ? VdpMode.GameGear : VdpMode.SMS, DisplayType);
PSG = new SN76489();
YM2413 = new YM2413();
SoundMixer = new SoundMixer(YM2413, PSG);
if (HasYM2413 && game["WhenFMDisablePSG"])
SoundMixer.DisableSource(PSG);
ActiveSoundProvider = HasYM2413 ? (ISoundProvider)SoundMixer : PSG;
SystemRam = new byte[0x2000];
if (game["CMMapper"])
InitCodeMastersMapper();
else if (game["CMMapperWithRam"])
InitCodeMastersMapperRam();
else if (game["ExtRam"])
InitExt2kMapper(int.Parse(game.OptionValue("ExtRam")));
else if (game["KoreaMapper"])
InitKoreaMapper();
else if (game["MSXMapper"])
InitMSXMapper();
else if (game["NemesisMapper"])
InitNemesisMapper();
else if (game["TerebiOekaki"])
InitTerebiOekaki();
else
InitSegaMapper();
if (Settings.ForceStereoSeparation && !IsGameGear)
{
if (game["StereoByte"])
{
ForceStereoByte = byte.Parse(game.OptionValue("StereoByte"));
}
PSG.StereoPanning = ForceStereoByte;
}
if (SyncSettings.AllowOverlock && game["OverclockSafe"])
Vdp.IPeriod = 512;
if (Settings.SpriteLimit)
Vdp.SpriteLimit = true;
if (game["3D"])
IsGame3D = true;
if (game["BIOS"])
{
Port3E = 0xF7; // Disable cartridge, enable BIOS rom
InitBiosMapper();
}
else if (game.System == "SMS")
{
BiosRom = comm.CoreFileProvider.GetFirmware("SMS", Region, false);
if (BiosRom != null && (game["RequireBios"] || SyncSettings.UseBIOS))
Port3E = 0xF7;
if (BiosRom == null && game["RequireBios"])
CoreComm.Notify("BIOS image not available. This game requires BIOS to function.");
if (SyncSettings.UseBIOS && BiosRom == null)
CoreComm.Notify("BIOS was selected, but rom image not available. BIOS not enabled.");
}
if (game["SRAM"])
SaveRAM = new byte[int.Parse(game.OptionValue("SRAM"))];
else if (game.NotInDatabase)
SaveRAM = new byte[0x8000];
SetupMemoryDomains();
}
