public C64()
{
MPU = new PLA(this);
CPU = new CPU_6510("C64", MPU);
SID = new SID_OpenAL();
IEC = new IECBus();
VIC = new VIC_II(this);
CIA = new CIA(Keyboard);
CIA2 = new CIA2();
//Joystick1 = new NoJoystick();
//Joystick1 = new JoystickKeypad(Keys.W, Keys.S, Keys.A, Keys.D, Keys.LControlKey);
Joystick2 = new JoystickKeypad(Keys.NumPad8, Keys.NumPad5, Keys.NumPad4, Keys.NumPad6, Keys.ControlKey);
// Joystick2 = new JoystickKeypad(Keys.Up, Keys.Down, Keys.Left, Keys.Right, Keys.ControlKey);
CIA.SetJoystick(1, Joystick1);
CIA.SetJoystick(2, Joystick2);
Datasette = new DatasetteTAP();
Floppy = new C1541();
// Form f = Floppy.GetControlForm();
// f.Show();
Reset();
}
public void Process(C64 _c64)
{
xSignal.CopyFrom(Signal);
Signal.toInactive();
// collision?
// CIA2: let host signal
byte PRA = _c64.CIA2.PRA;
if ((PRA & (1 << 3)) > 0)
{
Signal.ATN += 1;
}
if ((PRA & (1 << 4)) > 0)
{
Signal.CLK += 1;
}
if ((PRA & (1 << 5)) > 0)
{
Signal.DATA += 1;
}
// floppy output
C1541 floppy = _c64.Floppy;
if (floppy.DATA_OUT)
{
Signal.DATA += 2;
}
if (floppy.CLOCK_OUT)
{
Signal.CLK += 2;
}
// collision?
if ((Signal.ATN == 3) ||
(Signal.CLK == 3) ||
(Signal.DATA == 3))
{
Console.Out.WriteLine("IEC: collision");
}
//
// inputs
//
// floppy input
floppy.ATN_IN = (Signal.ATN > 0);
floppy.CLOCK_IN = (Signal.CLK > 0);
floppy.DATA_IN = (Signal.DATA > 0);
// CIA2 input
_c64.CIA2.PRA &= 0x3f;
if (Signal.CLK == 0)
{
_c64.CIA2.PRA |= (1 << 6);
}
else
{
_c64.CIA2.PRA &= 0xbf;
}
if (Signal.DATA == 0)
{
_c64.CIA2.PRA |= (1 << 7);
}
else
{
_c64.CIA2.PRA &= 0x7f;
}
//
// Trace
//
if ((Signal.ATN != xSignal.ATN) ||
(Signal.DATA != xSignal.DATA) ||
(Signal.CLK != xSignal.CLK))
{
string str = "";
str += string.Format("ATN:{0} ", Signal.ATN);
str += string.Format("CLK:{0} ", Signal.CLK);
str += string.Format("DATA:{0} ", Signal.DATA);
Console.Out.WriteLine(str);
}
}
