public void Add (IDMAChannel dmaChannel)
{
if (dmaChannelCount >= MaxDMAChannels)
return;
dmaChannels[dmaChannelCount++] = dmaChannel;
}
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);
}
}
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();
}
public void Add(IDMAChannel dmaChannel)
{
if (dmaChannelCount >= MaxDMAChannels)
{
return;
}
dmaChannels[dmaChannelCount++] = dmaChannel;
}
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 ();
}