Re: Additional SIDs

From: Groepaz <>
Date: Wed, 30 Nov 2011 22:01:45 +0100
Message-Id: <>
On Wednesday 30 November 2011, you wrote:
> On 2011-11-30, at 21:25, Groepaz wrote:
> > actually most "older software" uses DE00 or DF00, ie whats available at
> > the cartridge port.
> I'd have to double check the schematics and pinouts (and my 1541U) but I'd
> bet 1541U had an option to map its "SIDs" into $D4XX too when connected to
> OTOH (after second thought) it has some relatively powerful logic and
> computing capabilities so it might possibly do some tricks not feasible
> for simple(r) carts.. ?

yes, for de00 and df00 you get a decoded select signal (io1/io2) right at a 
port pin, for anything else you need your own address decoder... so many/most 
carts use dexx or dfxx.


Wenn man nicht so gut schwimmen kann, sollte man einfach nicht so weit ins 
tiefe Wasser gehen. 
<Bob Marley>

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Received on 2011-11-30 22:00:08

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