static void CDLMappingApplyRange(HuC6280.MemMapping[] mm, string name, int block, int len, int initialoffs = 0)
{
for (int i = block, offs = initialoffs; i < 256 && len > (offs - initialoffs); i++, offs += 8192)
{
mm[i].Name = name;
mm[i].Offs = offs;
}
}
public VPC(PCEngine pce, VDC vdc1, VDC vdc2, VCE vce, HuC6280 cpu)
{
PCE = pce;
VDC1 = vdc1;
VDC2 = vdc2;
VCE = vce;
CPU = cpu;
// latch initial video buffer
FrameBuffer = vdc1.GetVideoBuffer();
FrameWidth = vdc1.BufferWidth;
FrameHeight = vdc1.BufferHeight;
}
public VDC(PCEngine pce, HuC6280 cpu, VCE vce)
{
this.pce = pce;
this.cpu = cpu;
this.vce = vce;
RenderBackgroundScanline = RenderBackgroundScanlineUnsafe;
Registers[HSR] = 0x00FF;
Registers[HDR] = 0x00FF;
Registers[VPR] = 0xFFFF;
Registers[VCR] = 0xFFFF;
ReadBuffer = 0xFFFF;
}
void Init(GameInfo game, byte[] rom)
{
Controller = NullController.GetNullController();
Cpu = new HuC6280(CoreComm);
VCE = new VCE();
VDC1 = new VDC(this, Cpu, VCE);
PSG = new HuC6280PSG();
SCSI = new ScsiCDBus(this, disc);
Cpu.Logger = (s) => CoreComm.Tracer.Put(s);
if (TurboGrafx)
{
Ram = new byte[0x2000];
Cpu.ReadMemory21 = ReadMemory;
Cpu.WriteMemory21 = WriteMemory;
Cpu.WriteVDC = VDC1.WriteVDC;
soundProvider = PSG;
CDAudio = new CDAudio(null, 0);
}
else if (SuperGrafx)
{
VDC2 = new VDC(this, Cpu, VCE);
VPC = new VPC(this, VDC1, VDC2, VCE, Cpu);
Ram = new byte[0x8000];
Cpu.ReadMemory21 = ReadMemorySGX;
Cpu.WriteMemory21 = WriteMemorySGX;
Cpu.WriteVDC = VDC1.WriteVDC;
soundProvider = PSG;
CDAudio = new CDAudio(null, 0);
}
else if (TurboCD)
{
Ram = new byte[0x2000];
CDRam = new byte[0x10000];
ADPCM = new ADPCM(this, SCSI);
Cpu.ReadMemory21 = ReadMemoryCD;
Cpu.WriteMemory21 = WriteMemoryCD;
Cpu.WriteVDC = VDC1.WriteVDC;
CDAudio = new CDAudio(disc);
SetCDAudioCallback();
PSG.MaxVolume = short.MaxValue * 3 / 4;
SoundMixer = new SoundMixer(PSG, CDAudio, ADPCM);
SoundSynchronizer = new MetaspuSoundProvider(ESynchMethod.ESynchMethod_V);
soundProvider = SoundSynchronizer;
Cpu.ThinkAction = (cycles) => { SCSI.Think(); ADPCM.Think(cycles); };
}
if (rom.Length == 0x60000)
{
// 384k roms require special loading code. Why ;_;
// In memory, 384k roms look like [1st 256k][Then full 384k]
RomData = new byte[0xA0000];
var origRom = rom;
for (int i = 0; i < 0x40000; i++)
RomData[i] = origRom[i];
for (int i = 0; i < 0x60000; i++)
RomData[i + 0x40000] = origRom[i];
RomLength = RomData.Length;
}
else if (rom.Length > 1024 * 1024)
{
// If the rom is bigger than 1 megabyte, switch to Street Fighter 2 mapper
Cpu.ReadMemory21 = ReadMemorySF2;
Cpu.WriteMemory21 = WriteMemorySF2;
RomData = rom;
RomLength = RomData.Length;
// user request: current value of the SF2MapperLatch on the tracelogger
Cpu.Logger = (s) => CoreComm.Tracer.Put(string.Format("{0:X1}:{1}", SF2MapperLatch, s));
}
else
{
// normal rom.
RomData = rom;
RomLength = RomData.Length;
}
if (game["BRAM"] || Type == NecSystemType.TurboCD)
{
BramEnabled = true;
BRAM = new byte[2048];
// pre-format BRAM. damn are we helpful.
BRAM[0] = 0x48; BRAM[1] = 0x55; BRAM[2] = 0x42; BRAM[3] = 0x4D;
BRAM[4] = 0x00; BRAM[5] = 0x88; BRAM[6] = 0x10; BRAM[7] = 0x80;
}
if (game["SuperSysCard"])
SuperRam = new byte[0x30000];
if (game["ArcadeCard"])
{
ArcadeRam = new byte[0x200000];
ArcadeCard = true;
ArcadeCardRewindHack = _settings.ArcadeCardRewindHack;
for (int i = 0; i < 4; i++)
ArcadePage[i] = new ArcadeCardPage();
}
if (game["PopulousSRAM"])
{
PopulousRAM = new byte[0x8000];
Cpu.ReadMemory21 = ReadMemoryPopulous;
Cpu.WriteMemory21 = WriteMemoryPopulous;
}
// the gamedb can force sprite limit on, ignoring settings
if (game["ForceSpriteLimit"] || game.NotInDatabase)
ForceSpriteLimit = true;
if (game["CdVol"])
CDAudio.MaxVolume = int.Parse(game.OptionValue("CdVol"));
if (game["PsgVol"])
PSG.MaxVolume = int.Parse(game.OptionValue("PsgVol"));
if (game["AdpcmVol"])
ADPCM.MaxVolume = int.Parse(game.OptionValue("AdpcmVol"));
// the gamedb can also force equalizevolumes on
if (TurboCD && (_settings.EqualizeVolume || game["EqualizeVolumes"] || game.NotInDatabase))
SoundMixer.EqualizeVolumes();
// Ok, yes, HBlankPeriod's only purpose is game-specific hax.
// 1) At least they're not coded directly into the emulator, but instead data-driven.
// 2) The games which have custom HBlankPeriods work without it, the override only
// serves to clean up minor gfx anomalies.
// 3) There's no point in haxing the timing with incorrect values in an attempt to avoid this.
// The proper fix is cycle-accurate/bus-accurate timing. That isn't coming to the C#
// version of this core. Let's just acknolwedge that the timing is imperfect and fix
// it in the least intrusive and most honest way we can.
if (game["HBlankPeriod"])
VDC1.HBlankCycles = game.GetIntValue("HBlankPeriod");
// This is also a hack. Proper multi-res/TV emulation will be a native-code core feature.
if (game["MultiResHack"])
VDC1.MultiResHack = game.GetIntValue("MultiResHack");
Cpu.ResetPC();
SetupMemoryDomains();
}