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From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga
Subject: Re: SoftPC for the Amiga 3000
Message-ID: <14423@cbmvax.commodore.com>
Date: 13 Sep 90 21:53:55 GMT
References: <2178@bambam.UUCP> <117@faatcrl.UUCP> <382@cbmger.UUCP> <4056@newton.physics.purdue.edu>
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Distribution: comp
Organization: Commodore, West Chester, PA
Lines: 28

In article <4056@newton.physics.purdue.edu> murphy@maxwell.physics.purdue.edu (William J. Murphy) writes:

>While what you say about Mac and Sun is true, what about Apollo?  I recall
>that their machines used the ISA configuration.  I don't know anything about
>the timing issues and mapping/addressing of the cards into the peripheral
>space, but couldn't one take an off-the-shelf PC card and use it with
>SoftPC in an Apollo?  

I think there might have been something weird about the implementation, but 
the desktop Apollos like the 3000/4000 have ISA slots.  That doesn't mean it's
all that likely that a program like SoftPC would have direct access to them.
The Apollos are attempting to run a protected OS, and should you let something
evil like MS-DOS grab hold of your naked hardware on such a system, terrible
things could result.  I suppose under the right circumstances, they might
provide some way for the SoftPC program to be set up with unrestricted access
to safe chunks of the ISA bus address.

Not surprisingly, the new Apollo desktop machines are supporting the EISA
bus.  They're the first and so far only non-Intel architecture machines to 
do so.

>Bill Murphy                                  | Turtle Schmurtle, I'm the


-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
      Get that coffee outta my face, put a Margarita in its place!