[Oberon] FPGA - Display.Mod 4-bit colour

[Tomas Kral]

> I believe the white now truly is {0,1,2,3} = 15, rather than {0} = 1.
> But changing it, would invalidate clients, making a different import
> KEY.

Hi,

Now I have two display modules, `Display.Mod' and `Display2.Mod'
handling 1-bit and 4-bit colour respectively.

While there could be a single driver `vid.v' selecting the mode by a
switch e.g. swi[6], adjusting video base accordingly. 

Can the system somehow boot with either `Display' or `Display2'
based on the swi[6]?

`Display' is imported by other modules `Oberon',`Viewers',..

-- 
Tomas Kral <thomas.kral at email.cz>