Article View: comp.sys.atari.st
Article #28560Re: ST hard
From: Jwahar R. Bammi
Date: Tue, 06 Oct 1987 03:10
Date: Tue, 06 Oct 1987 03:10
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In article <858@atari.UUCP> dyer@atari.UUCP (Landon Dyer) writes:
>> 7. It should not be very hard to insert a MMU between the 68000 and the
>> rest of the chips.
>
>It is. Very hard. There are NO nanoseconds available -- even
>one gate delay would kill memory access.
>
It seems to me that un-grounding DTACK and attaching it to a *real*
MMU should give you as many nanosecond as you would want, or am i missing
something. I will take a few nanoseconds penalty for a real MMU.
--
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!necntc!ames!sdcsvax!ucbvax!decvax!decwrl!pyramid!uccba!hal!mandrill!bammi From: bammi@mandrill.CWRU.Edu (Jwahar R. Bammi) Newsgroups: comp.sys.atari.st Subject: Re: ST hard Message-ID: <2269@mandrill.CWRU.Edu> Date: Mon, 5-Oct-87 23:10:12 EDT Article-I.D.: mandrill.2269 Posted: Mon Oct 5 23:10:12 1987 Date-Received: Fri, 9-Oct-87 05:49:31 EDT References: <8710011017.AA11188@ucbvax.Berkeley.EDU> <858@atari.UUCP> Reply-To: bammi@mandrill.CWRU.Edu (Jwahar R. Bammi) Distribution: world Organization: Case Western Reserve University Lines: 16