RE: PET hi-res board

Hi

The board I tested in 1982 was just not working in 512x512
It was using "interlaced" lines so we just saw flickering
you could be see sick after having watched the screen for 1 mn :)

perhaps that it worked fine with a new release of this board with the 
connector for an external monitor.

--
Didier




-----Message d'origine-----
De : owner-cbm-hackers@musoftware.de
[mailto:owner-cbm-hackers@musoftware.de] De la part de Rhialto
Envoyé : lundi 23 juillet 2012 23:51
À : cbm-hackers@musoftware.de
Objet : Re: PET hi-res board

On Mon 23 Jul 2012 at 22:44:52 +0200, Christian Dirks wrote:
> Am 23.07.2012 21:39, schrieb Steve Gray:
> >[...] I don't know of any real software that would use it. [...]
> >
> About a year ago I bought a PCB layout system: A 8032-SK with the HSG 
> board installed, an additional external monitor, a Watanabe flatbed 
> plotter with integrated IEEE-488 interface, and ... some disks, 
> including the PCB layout software and some PCB files.
> Unfortuantely no documentation, but I managed loading, displaying and 
> plotting PCB files.

Well, that makes a case for adding some emulation to VICE.
I have no idea how complex that graphics chip is but it helps that its
memory apparently isn't mapped into CPU address space.

How does a 512 x 512 graphics screen go on a display that normally shows
640 x 200 (80*8 x 25*8)? I must assume that they can show only one or the
other, with wildly differing video timings?

> Christian Dirks
-Olaf.
--
___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
\X/ rhialto/at/xs4all.nl    -- can't be childish sometimes. -The 4th Doctor

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