Re: Re: PET hi-res board

Hi, all

Amazing to see "reappear" those EF9365/6 so many years after ! No idea if they had been widely used or not but I remember having read those datasheets by the time I was working on the French Minitel (EF9340/41 then later 9345/74) and beeing impressed by available power.

It will be a very big chalenge for "someone" to emulate those on VICE.

Regards - Hervé

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Message du : 23/07/2012 23:52
De : "Rhialto " <rhialto@falu.nl>
A : cbm-hackers@musoftware.de
Copie à : 
Sujet : 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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