> ] Maybe you'd better make a Screen 10 / 11-converter??? (Anyone knows the
> ] difference between those two?)
> There is no physical difference between the two modes. It is only a
logical
> difference for the BASIC interpreter.
>
> In both modes, bit 4 of the pixel determines wether the pixel must be
shown
> as a YJK encoded pixel or as a colorpalette pixel.
> Bit 4=0: Show as an YJK encoded pixel. Bit 0-3 determine the Y value.
> Bit 4=1: Show as a colorpalette pixel. Bit 0-3 determine the color.
> In both cases, Bit 7-5 determine 3 bits of the JK component, just like in
> screen 12.
>
> When you are in screen 10, the BASIC interpreter assumes that all
commands,
> like line and pset, should only work on the lowest four bits and should
set
> bit 4 to 1. So, you can make screen 5 like drawings on a high-color
> background.
>
> When you are in screen 11, the BASIC interpreter assumes that all
commands,
> like line and pset, should work on all 8 bits of the pixel. So, you can
> manipulate your high-color background. Just like in screen 12.
>
> When you switch from screen 10 to 11 or viceversa, NO VDP settings are
> changed!
>
> I hope that this is clear enough and that I did not confuse anybody.
Yes, certainly. Thank you!
And err... Hans Otten, I do know about the working of screen 12 and 11
(although I do not have the specs), but I didn't know the difference between
screen 10/11.
~Grauw
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