cg3 tweakability info?

[der Mouse]

> According to the Sun Framebuffer FAQ, the TGX/TGX+ framebuffer is
> quite universally programmable - some OBP Forth magic allows you to
> select one of several possible dot clock frequencies, adjust front
> porch/sync/back porch widths in multiples of pixel duration and so
> on.

> (Before anyone asks, this is all just idle experimental
> proof-of-concept stuff and not intended to work with any
> off-the-shelf software.  If all goes extremely well, it might turn
> into a sort of SPARC-based videogame console somewhere in time, as
> I'm looking for TV rate RGB output.)

And I'd be interested in making my 1600x1280-capable framebuffers do
1600x1200, so they can be used with designed-for-peecee (= inexpensive)
displays.  (The one I care most about is a cg14, not a cg6, but IIRC
they are rather similar in how things like video modes get set.)

> As I don't have a TGX/TGX+ in any of my easily accessible machines,

You appear to be in Germany.  I have lots of such SBus boards, and
would be happy to post one to you, but I don't know whether it would be
worth the hassle involved in getting it through borders - I'm in
Canada.  If you want one, drop me a line - I don't recall whether
you've gotten mail to me in the past; if not, I recommend
mouse at netbsd.org and mouse at openface.ca as well as
mouse at rodents.montreal.qc.ca.

> I've already extracted some of the corresponding FCode(attributes and
> words from /iommu/sbus/cgthree) but it doesn't give me much of an
> idea where to start yet. Has anybody been involved with that stuff
> far enough to tell me - or just give me some pointers towards
> figuring out - which lever does what?

Doesn't uncompiling the FCode give you a fair idea of what's involved
in setting up the video?

> Psssst!  Schon vom neuen GMX MultiMessenger gehört?
> Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger?did=10

No thanks.  It appears to be (a) entirely auf Deutsch, (b) binary-only,
and (c) offering nothing I particularly want.

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