private void DrawScreen()
{
var i = 0;
DrawBorder();
for (var y = 0; y < 200; y++)
{
var offset = (y + 8) * Width + 8;
var x = 0;
if (!_mem.IsDirty(y))
{
i += 40;
}
else
{
for (var xx = 0; xx < 40; xx++)
{
var col = _mem.Color(i);
var c2 = col & 0x0F;
var c1 = col >> 4;
var cc2 = Palette[c1];
var cc1 = Palette[c2];
var pt = _mem.Point(i);
if ((0x80 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x40 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x20 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x10 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x08 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x04 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x02 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
if ((0x01 & pt) != 0)
{
_pixels[x + offset] = cc2;
}
else
{
_pixels[x + offset] = cc1;
}
x++;
i++;
}
}
}
}
