Re: A2620 possibility

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#1275

From: DEAN GAUDET
Date: Mon, 11 Sep 1989 15:03

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Disclaimer:  This is just idle thought.  I do not have an A2620 and do
not claim to have knowledge of its workings.  No flames please!
 
Since the A2620 allows you to use the 68000 through a startup selection,
wouldn't it be possible to use BOTH processors?  ie:  Use the 68020 as
an amiga 2500, and make the 68000 think it's just a plain 2000.
 
I realize that problems exist with video and audio handling.  I would
think that handling of resources could be done quite easily (ie:  it
would require some reworking of code to check if the other processor had 
allocated a resource already).   RAM is another problem - but if you are 
running the 68020 off 32-bit ram, the 68000 would be home free in
16-bit ram.
 
You could use the 68885 (MMU) to remap AbsExecBase for the 68020.
 
Comments?
 
I'm not about to try it myself (see above disclaimer).  I think the
least that could be achieved is to use the 68000 as a slave for
background processing...
 
Dean Gaudet
DGaudet@UNCAMULT.BITNET   - or -  Dean.Gaudet@CANREMOTE.UUCP
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!tmsoft!masnet!canremote!dean.gaudet
From: dean.gaudet@canremote.uucp (DEAN GAUDET)
Newsgroups: comp.sys.amiga.tech
Subject: Re: A2620 possibility
Message-ID: <89091323592891@masnet.uucp>
Date: 11 Sep 89 15:03:00 GMT
Organization: Canada Remote Systems Limited, Mississauga, ON, Canada
Lines: 26