public A7800Hawk(CoreComm comm, GameInfo game, byte[] rom, string gameDbFn, object settings, object syncSettings)
{
var ser = new BasicServiceProvider(this);
maria = new Maria();
tia = new TIA();
m6532 = new M6532();
pokey = new Pokey();
cpu = new MOS6502X <CpuLink>(new CpuLink(this));
maria = new Maria
{
ReadMemory = ReadMemory
};
CoreComm = comm;
_blip.SetRates(1789773, 44100);
_settings = (A7800Settings)settings ?? new A7800Settings();
_syncSettings = (A7800SyncSettings)syncSettings ?? new A7800SyncSettings();
_controllerDeck = new A7800HawkControllerDeck(_syncSettings.Port1, _syncSettings.Port2);
byte[] highscoreBios = comm.CoreFileProvider.GetFirmware("A78", "Bios_HSC", false, "Some functions may not work without the high score BIOS.");
byte[] palBios = comm.CoreFileProvider.GetFirmware("A78", "Bios_PAL", false, "The game will not run if the correct region BIOS is not available.");
byte[] ntscBios = comm.CoreFileProvider.GetFirmware("A78", "Bios_NTSC", false, "The game will not run if the correct region BIOS is not available.");
byte[] header = new byte[128];
bool is_header = false;
if (rom.Length % 1024 == 128)
{
Console.WriteLine("128 byte header detected");
byte[] newrom = new byte[rom.Length - 128];
is_header = true;
Buffer.BlockCopy(rom, 0, header, 0, 128);
Buffer.BlockCopy(rom, 128, newrom, 0, newrom.Length);
rom = newrom;
}
_isPAL = false;
// look up hash in gamedb to see what mapper to use
// if none found default is zero
// also check for PAL region
string hash_md5 = null;
s_mapper = null;
hash_md5 = "md5:" + rom.HashMD5(0, rom.Length);
var gi = Database.CheckDatabase(hash_md5);
if (gi != null)
{
var dict = gi.GetOptionsDict();
if (dict.ContainsKey("PAL"))
{
_isPAL = true;
}
if (dict.ContainsKey("board"))
{
s_mapper = dict["board"];
}
else
{
throw new Exception("No Board selected for this game");
}
// check if the game uses pokey or RAM
if (dict.ContainsKey("RAM"))
{
int.TryParse(dict["RAM"], out cart_RAM);
Console.WriteLine(cart_RAM);
}
if (dict.ContainsKey("Pokey"))
{
bool.TryParse(dict["Pokey"], out is_pokey);
}
// some games will not function with the high score bios
// if such a game is being played, tell the user and disable it
if (dict.ContainsKey("No_HS"))
{
bool no_hs;
bool.TryParse(dict["No_HS"], out no_hs);
if (no_hs)
{
Console.WriteLine("This game is incompatible with the High Score BIOS, disabling it");
highscoreBios = null;
}
}
}
else if (is_header)
{
Console.WriteLine("ROM not in DB, inferring mapper info from header");
byte cart_1 = header[0x35];
byte cart_2 = header[0x36];
_isPAL = (header[0x39] > 0);
if (cart_2.Bit(1))
{
if (cart_2.Bit(3))
{
s_mapper = "2";
}
else
{
s_mapper = "1";
}
if (cart_2.Bit(2))
{
cart_RAM = 8;
}
}
else
{
s_mapper = "0";
}
if (cart_2.Bit(0))
{
is_pokey = true;
}
}
else
{
throw new Exception("ROM not in gamedb and has no header");
}
// some games that use the Super Game mapper only have 4 banks, so let's set a flag to limit bank size
if (rom.Length < 0x14000)
{
small_flag = true;
// additionally, PAL Karateka has bank 6 (actually 2) at 0x4000
if (rom.HashMD5() == "5E0A1E832BBCEA6FACB832FDE23A440A")
{
PAL_Kara = true;
}
}
_rom = rom;
Reset_Mapper(s_mapper);
_hsbios = highscoreBios;
_bios = _isPAL ? palBios : ntscBios;
if (_bios == null)
{
throw new MissingFirmwareException("The BIOS corresponding to the region of the game you loaded is required to run Atari 7800 games.");
}
// set up palette and frame rate
if (_isPAL)
{
_frameHz = 50;
_screen_width = 320;
_screen_height = 313;
_vblanklines = 20;
maria._palette = PALPalette;
}
else
{
_frameHz = 60;
_screen_width = 320;
_screen_height = 263;
_vblanklines = 20;
maria._palette = NTSCPalette;
}
maria.Core = this;
m6532.Core = this;
tia.Core = this;
pokey.Core = this;
ser.Register <IVideoProvider>(this);
ser.Register <ISoundProvider>(this);
ServiceProvider = ser;
_tracer = new TraceBuffer {
Header = cpu.TraceHeader
};
ser.Register <ITraceable>(_tracer);
SetupMemoryDomains();
ser.Register <IDisassemblable>(cpu);
HardReset();
}
public A7800Hawk(CoreComm comm, byte[] rom, A7800Hawk.A7800Settings settings, A7800Hawk.A7800SyncSettings syncSettings)
{
var ser = new BasicServiceProvider(this);
maria = new Maria();
tia = new TIA();
m6532 = new M6532();
pokey = new Pokey();
cpu = new MOS6502X <CpuLink>(new CpuLink(this));
maria = new Maria
{
ReadMemory = ReadMemory
};
_blip.SetRates(1789773, 44100);
_settings = (A7800Settings)settings ?? new A7800Settings();
_syncSettings = (A7800SyncSettings)syncSettings ?? new A7800SyncSettings();
_controllerDeck = new A7800HawkControllerDeck(_syncSettings.Port1, _syncSettings.Port2);
var highscoreBios = comm.CoreFileProvider.GetFirmware(new("A78", "Bios_HSC"), "Some functions may not work without the high score BIOS.");
var palBios = comm.CoreFileProvider.GetFirmware(new("A78", "Bios_PAL"), "The game will not run if the correct region BIOS is not available.");
var ntscBios = comm.CoreFileProvider.GetFirmware(new("A78", "Bios_NTSC"), "The game will not run if the correct region BIOS is not available.");
byte[] header = new byte[128];
bool is_header = false;
if (rom.Length % 1024 == 128)
{
Console.WriteLine("128 byte header detected");
byte[] newrom = new byte[rom.Length - 128];
is_header = true;
Buffer.BlockCopy(rom, 0, header, 0, 128);
Buffer.BlockCopy(rom, 128, newrom, 0, newrom.Length);
rom = newrom;
}
_isPAL = false;
// look up hash in gamedb to see what mapper to use
// if none found default is zero
// also check for PAL region
s_mapper = null;
var hash_md5 = MD5Checksum.ComputePrefixedHex(rom);
var gi = Database.CheckDatabase(hash_md5);
if (gi != null)
{
var dict = gi.GetOptions();
if (dict.ContainsKey("PAL"))
{
_isPAL = true;
}
if (!dict.TryGetValue("board", out s_mapper))
{
throw new Exception("No Board selected for this game");
}
// check if the game uses pokey or RAM
if (dict.TryGetValue("RAM", out var cartRAMStr))
{
int.TryParse(cartRAMStr, out cart_RAM);
}
if (dict.TryGetValue("Pokey", out var pokeyStr))
{
bool.TryParse(pokeyStr, out is_pokey);
}
if (dict.TryGetValue("Pokey_450", out var pokey450Str))
{
bool.TryParse(pokey450Str, out is_pokey_450);
}
// some games will not function with the high score bios
// if such a game is being played, tell the user and disable it
if (dict.TryGetValue("No_HS", out var noHSStr))
{
bool.TryParse(noHSStr, out var no_hs);
if (no_hs)
{
Console.WriteLine("This game is incompatible with the High Score BIOS, disabling it");
highscoreBios = null;
}
}
}
else if (is_header)
{
Console.WriteLine("ROM not in DB, inferring mapper info from header");
byte cart_1 = header[0x35];
byte cart_2 = header[0x36];
_isPAL = (header[0x39] > 0);
if (cart_2.Bit(1))
{
if (cart_2.Bit(3))
{
s_mapper = "2";
}
else
{
s_mapper = "1";
}
if (cart_2.Bit(2))
{
cart_RAM = 8;
// the homebrew game serpentine requires extra RAM, but in the alternative style
if (hash_md5 == RomChecksums.Serpentine)
{
cart_RAM = 16;
}
}
}
else
{
s_mapper = "0";
}
if (cart_2.Bit(0))
{
is_pokey = true;
}
// the homebrew game serpentine requires the pokey chip to be available at the alternative location 0x450
if (cart_2.Bit(6))
{
is_pokey_450 = true;
}
}
else
{
throw new Exception("ROM not in gamedb and has no header");
}
// some games that use the Super Game mapper only have 4 banks, so let's set a flag to limit bank size
if (rom.Length < 0x14000)
{
small_flag = true;
// additionally, PAL Karateka has bank 6 (actually 2) at 0x4000
if (hash_md5 == RomChecksums.KaratekaPAL)
{
PAL_Kara = true;
}
}
_rom = rom;
Reset_Mapper(s_mapper);
_hsbios = highscoreBios;
_bios = _isPAL ? palBios : ntscBios;
if (_bios == null)
{
throw new MissingFirmwareException("The BIOS corresponding to the region of the game you loaded is required to run Atari 7800 games.");
}
// set up palette and frame rate
if (_isPAL)
{
_frameHz = 50;
_screen_width = 320;
_screen_height = 313;
_vblanklines = 20;
maria._palette = PALPalette;
}
else
{
_frameHz = 60;
_screen_width = 320;
_screen_height = 263;
_vblanklines = 20;
maria._palette = NTSCPalette;
}
maria.Core = this;
m6532.Core = this;
tia.Core = this;
pokey.Core = this;
ser.Register <IVideoProvider>(this);
ser.Register <ISoundProvider>(this);
ServiceProvider = ser;
_tracer = new TraceBuffer(cpu.TraceHeader);
ser.Register <ITraceable>(_tracer);
ser.Register <IStatable>(new StateSerializer(SyncState));
SetupMemoryDomains();
ser.Register <IDisassemblable>(cpu);
HardReset();
}