public VIC_II(C64 _c64) : base(0xd000, 0xd3ff)
{
C64 = _c64;
Palette = new Color[16];
Palette[0] = Color.FromArgb(0xff, 0x00, 0x00, 0x00);
Palette[1] = Color.FromArgb(0xff, 0xff, 0xff, 0xff);
Palette[2] = Color.FromArgb(0xff, 0x68, 0x37, 0x2b);
Palette[3] = Color.FromArgb(0xff, 0x70, 0xa4, 0xb2);
Palette[4] = Color.FromArgb(0xff, 0x6F, 0x3D, 0x86);
Palette[5] = Color.FromArgb(0xff, 0x58, 0x8D, 0x43);
Palette[6] = Color.FromArgb(0xff, 0x35, 0x28, 0x79);
Palette[7] = Color.FromArgb(0xff, 0xB8, 0xC7, 0x6F);
Palette[8] = Color.FromArgb(0xff, 0x6F, 0x4F, 0x25);
Palette[9] = Color.FromArgb(0xff, 0x43, 0x39, 0x00);
Palette[10] = Color.FromArgb(0xff, 0x9A, 0x67, 0x59);
Palette[11] = Color.FromArgb(0xff, 0x44, 0x44, 0x44);
Palette[12] = Color.FromArgb(0xff, 0x6C, 0x6C, 0x6C);
Palette[13] = Color.FromArgb(0xff, 0x9A, 0xD2, 0x84);
Palette[14] = Color.FromArgb(0xff, 0x6C, 0x5E, 0xB5);
Palette[15] = Color.FromArgb(0xff, 0x95, 0x95, 0x95);
Screen = new Bitmap(Settings.PixelsPerScanLine, Settings.NumScanLines, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
if (Screen.Palette.Flags > 0)
{
ColorPalette pal = Screen.Palette;
for (int i = 0; i < 16; i++)
{
pal.Entries[i] = Palette[i];
}
Screen.Palette = pal;
}
}
public PLA(C64 _c64)
{
C64 = _c64;
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);
}
}
public IOMemoryBank(C64 _c64, int _offset, int _len) : base(_offset, _len)
{
C64 = _c64;
}
