Re: ...thoughts on Retro-uC?

From: groepaz_at_gmx.net
Date: Thu, 13 Sep 2018 08:49:57 +0200
Message-ID: <4086683.OgOHdDO8fY@rakete>
Am Donnerstag, 13. September 2018, 07:53:46 CEST schrieb Francesco Messineo:
> On Thu, Sep 13, 2018 at 7:43 AM Baltissen, GJPAA (Ruud)
> 
> <ruud.baltissen@apg.nl> wrote:
> > > if a 6526 clone would be simple - we'd have one by now
> > 
> > I see it in a different way: if there was a demand for the 6526, we would
> > have one by now.
> > 
> > Take the PLA as example: there was demand for it and one or more guys cam
> > with the EPROM solution and others various CPLD replacements. So IMHO as
> > soon there is a real demand for it, somebody will create a replacement.
> Well, I agree more with Ruud, but the example is not well chosen
> because the PLA is easy (if we exclude timings problems, but if you
> use an EPROM, you're anyway adding different timings), CPLD versions
> of the PLA can be exact replacements even timing-wise.
> 6526 isn't so easy, it's a complex piece of statefull logic, but it's
> doable. There're probably still too many real parts to start worrying.

i've seen far more dead CIAs than dead PLAs so... oh well :)

sure, its doable. but nowhere near easy, not comparable to a PLA replacement 
in any way.

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Received on 2018-09-13 09:00:21

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