Exemple #1
0
		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;
			}
		}
Exemple #2
0
		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;
		}
Exemple #3
0
        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;
        }
Exemple #4
0
		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();
		}