Esempio n. 1
0
		public void Add (IDMAChannel dmaChannel)
		{
			if (dmaChannelCount >= MaxDMAChannels)
				return;

			dmaChannels[dmaChannelCount++] = dmaChannel;
		}
Esempio n. 2
0
        public FloppyControllerAdapter(X8086 cpu) : base(cpu)
        {
            task       = new TaskSC(this);
            this.sched = cpu.Sched;
            if (cpu.PIC != null)
            {
                this.irq = cpu.PIC.GetIrqLine((byte)6);
            }
            if (cpu.DMA != null)
            {
                this.dma = cpu.DMA.GetChannel(2);
                cpu.DMA.BindChannel(2, this);
            }

            curCylinder       = new byte[4];
            diskimg           = new DiskImage[512];
            regDOR            = (byte)(0xC);
            ctlStepRateTime   = (byte)0;
            ctlHeadUnloadTime = (byte)0;
            ctlHeadLoadTime   = (byte)0;
            ctlNonDma         = false;

            for (uint i = 0x3F0; i <= 0x3F7; i++)
            {
                ValidPortAddress.Add(i);
            }
        }
Esempio n. 3
0
        public FloppyDiskDriver(ushort ioBase)
        {
            base.name         = "FDC_0x" + ioBase.ToString("X");
            base.parent       = null;       // no parent
            base.deviceStatus = DeviceStatus.Initializing;

            this.ioBase = ioBase;

            floppyDrives = new FloppyDriveInfo[DrivesPerController];
            floppyMedia  = new FloppyMediaInfo[DrivesPerController];

            trackCache = new TrackCache[DrivesPerController];
            lastSeek   = new LastSeek[DrivesPerController];

            for (int drive = 0; drive < DrivesPerController; drive++)
            {
                trackCache[drive].buffer = new byte[FDC.MaxBytesPerTrack];
            }

            ControllerCommands = base.CreateIOPort(ioBase);
            StatusPort         = base.CreateIOPort(ioBase, 2);
            DataPort           = base.CreateIOPort(ioBase, 3);
            ConfigPort         = base.CreateIOPort(ioBase, 5);

            CMOSComand   = base.CreateIOPort(0x70);
            CMOSResponse = base.CreateIOPort(0x71);

            floppyDMA = base.CreateDMAChannel(2);
            floppyIRQ = base.CreateIRQHandler(6);

            this.Initialize();
        }
Esempio n. 4
0
        public void Add(IDMAChannel dmaChannel)
        {
            if (dmaChannelCount >= MaxDMAChannels)
            {
                return;
            }

            dmaChannels[dmaChannelCount++] = dmaChannel;
        }
Esempio n. 5
0
		public FloppyDiskDriver (ushort ioBase)
		{
			base.name = "FDC_0x" + ioBase.ToString ("X");
			base.parent = null; // no parent
			base.deviceStatus = DeviceStatus.Initializing;

			this.ioBase = ioBase;

			floppyDrives = new FloppyDriveInfo[DrivesPerController];
			floppyMedia = new FloppyMediaInfo[DrivesPerController];

			trackCache = new TrackCache[DrivesPerController];
			lastSeek = new LastSeek[DrivesPerController];

			for (int drive = 0; drive < DrivesPerController; drive++) 
				trackCache[drive].buffer = new byte[FDC.MaxBytesPerTrack];

			ControllerCommands = base.CreateIOPort (ioBase);
			StatusPort = base.CreateIOPort (ioBase, 2);
			DataPort = base.CreateIOPort (ioBase, 3);
			ConfigPort = base.CreateIOPort (ioBase, 5);

			CMOSComand = base.CreateIOPort (0x70);
			CMOSResponse = base.CreateIOPort (0x71);

			floppyDMA = base.CreateDMAChannel (2);
			floppyIRQ = base.CreateIRQHandler (6);

			this.Initialize ();
		}