Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!NABLA.ELECTRICAL-ENGINEERING.UMIST.AC.UK!idh
From: idh@NABLA.ELECTRICAL-ENGINEERING.UMIST.AC.UK (Ian D Hawkins)
Newsgroups: comp.sys.atari.st
Subject: adding a 68881
Message-ID: <8909131852.a027631@nabla.electrical-engineering.umist.ac.uk>
Date: 13 Sep 89 17:52:58 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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I would like to add a 68881 to my ST (to go with my prospero
FORTRAN compiler).  Is a reasonably priced add on board
available,  or has the necessary interface circuitry been
published anywhere?. The board would probably have to bolt on
to the 68000 as the glue chip in my machine is surface mounted.
I noticed an odd effect when upgrading the RAM in my ST;  it
wont allow different sized RAM banks.  Bank 0=500k,bank1=2M
gives 1Mbyte total,  bank 0=2M, bank1=500k gives an apparent 4M
and a swift crash!.