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- Xref: sparky comp.sys.atari.st:12760 comp.sys.atari.st.tech:4568
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- From: UweKloss@lionbbs.bs.open.de ( Uwe Kloss )
- Newsgroups: comp.sys.atari.st,comp.sys.atari.st.tech
- Message-ID: <H.rmGpWKv8&K2@lionbbs.bs.open.de>
- Organization: The Lion Town BBS, Brunswik, Germany
- Subject: Re: Utterly bizarre idea for Atari
- References: <oeZZqx200awNQ66F0C@andrew.cmu.edu> <l90309INN6q5@aludra.usc.edu>
- <1992Aug15.043618.17054@news.csuohio.edu>
- Reply-To: UweKloss@lionbbs.bs.open.de
- X-Software: HERMES GUS 1.00 Rev. Jan 16 1992
- Date: Sun, 23 Aug 1992 22:28:36 MET
- Lines: 33
-
- In <oeZZqx200awNQ66F0C@andrew.cmu.edu>, Stefan Monnier writes:
- > > Which is definitely wrong! Even for the simple 68000!
- > > What do you think are the pins ~BR(bus request),
- > > ~BG (bus grant) and ~BGACK (bus grant acknowlege) for?
-
- > Just a precision: with caches, you generally don't use BG and the likes
- > to solve the problem of simultaneous access to shared memory: each
- > processor has his own local bus!
- Right!
- But with caching the cache controller should use bus arbitration.
-
- > The main problem with 27 processors is that shared memory is not applicable:
- > this memory would be too of a bottleneck!
- > but until 10 or so processors, it is definetely 'makable' although
- Jep! This ist the number I remember from my CS lectures.
-
- > surely (much) more expensive than a 68030 (or even 68040) monoprocessor
- > system!
- Power has it's price! ;-)
-
- > That's the whole point: the processor price doesn't decide the system price !
- Right!
-
- Uwe
- --
- Eliminiere das Unmoegliche. Was immer uebrig bleibt, so
- unwahrscheinlich es auch wirkt, muss die Wahrheit sein.
- Aber was ist, wenn einmal NICHTS mehr uebrig bleibt?
- (nach: John Brunner - Mehr Dinge zwischen Himmel und Erde)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- Uwe Kloss UUCP: UweKloss@lionbbs.bs.open.de
- Fasanenstrasse 65 BTX: 0531336908 0001
- 3300 Braunschweig FIDO: not connected
-