[rescue] SS20 screen not found

[Mouse]

>> Is there any good technical documentation on these VSIMM modules?
>> [...]
> Unfortunately, the VSIMMs do contain proprietary ASICs, not just
> DRAM.

Sure, but that's not to say that they are necessary.  Anything that
conforms to the cards's interface should work equally well.  The
problem, of course, lies in figuring out that interface in enough
detail to (re-)implement it.

> I am not aware of any detailed (programming) documentation for the
> cgfourteen system, just the brief datasheets.

I have enough that I built a dumb memory-mapped framebuffer cg14 ddx
layer for MIT X.  I did it partly to be able to use my cg14s, partly to
get 8bpp and 24bpp on the screen simultaneously (the hardware is
capable of, in X terms, 8bpp PseudoColor and 24bpp TrueColor on the
screen at the same time.  I'd have to check my notes, but I don't
think it can do 8bpp PseudoColor and 24bpp DirectColor at the same
time; fuzzy memory says the PseudoColor and DirectColor modes (which do
both exist) use the same colour-mapping tables.  It would be possible
(though I didn't implement it) to choose between (a) 8bpp PseudoColor
and 24bpp TrueColor or (b) 24bpp DirectColor and 24bpp TrueColor.

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