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(); }