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From: taab5@isuvax.iastate.edu (Marc Barrett)
Newsgroups: comp.sys.amiga.advocacy
Subject: Re: YOU PEOPLE HAD BETTER GET WIT THE PROGRAM!! (Was: Re: Commodore Business Machines)
Message-ID: <1991Jun25.125036.28131@news.iastate.edu>
Date: 25 Jun 91 12:50:36 GMT
References: <1991Jun23.202728.18615@news.iastate.edu> <1991Jun24.041238.21611@agora.rain.com> <1991Jun24.131045.4403@news.iastate.edu> <1991Jun24.150701.1686@cunixf.cc.columbia.edu>,<14248@pasteur.Berkeley.EDU>
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In article <14248@pasteur.Berkeley.EDU>, navas@cory.Berkeley.EDU (David C. Navas) writes:
>Let's say Apple stuck an AMD 29000 chip into every Mac to speed up graphics.
>Except that their operating system would need to be rewritten to support it --
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

   Why would the operating system need to be rewritten to support the 
AMD 29000?  Apple already has a graphics card with an AMD 29000, and it 
works fine with most Macintosh programs.

>
>Or, perhaps more realistically, they provide for DMA driven activity in their
>top of the line model, but never updated their OS to support it....

   All versions of the Macintosh system from 6.0.5 and up fully support DMA.
Systems 6.0.7 and 7.0 actually have fairly sophisticated DMA support.  (It
might actually be the DMA support in these versions of the MAC OS that is
rendering them incompatible with A-Max).

>
>David Navas                                   navas@cory.berkeley.edu
>	2.0 :: "You can't have your cake and eat it too."
>Also try c186br@holden, c260-ay@ara and c184-ap@torus

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