🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.acorn.tech
Article #197

FPA and Memory Pinout?

#197
From: Alexander Jung
Date: Tue, 25 Aug 1992 15:21
31 lines
2053 bytes
Hello,
due to my ongoing thesis in astrophysics where I have to do a great deal of
floating point simulation I'm desperately looking into means to improve the
floating point speed of my A310 (4Mb, Arm 3, OAK SCSI...)

One intermediate solution would be a replacement for the FPE-module that
would use my Cyrix 387sx on the Aleph One PCboard (quite similar to the
DT Softwares 287 copro). I already phoned Aleph One on this but the did
not seem interested in writing such a module. While this can only be the
first step as the DT's copro claims 3-5-fold speed increase compared to an
ARM3, I would be really interested in some help on this program.

The real solution would be a combined Arm3/Copro hardware. As it seems that
Acorn will finally release a decent and payable Copro I'd be very interested
to hear of companies that sell Arm3 upgrades with coprocessor sockets.

Another possibility would be a do-it-yourself thingy that would have basically
an Arm3 and an empty socket. In order to keep it expandable I'd like to put
one or two memory upgrade sockets (like on the A540) on the board too.

So can a kind soul provide me with suitable info on the pinouts and connections
of the copro and the memory upgrades? 

hopefully
Alexander Jung

Grad. physics student at                    Snail mail: Alexander Jung 
State University of Bavaria at Wuerzburg                Kopernikusstrasse 19
                                                        D-8708 Gerbrunn
Email: alex@winx06.informatik.uni-wuerzburg.de          Germany
Technical Details
Message-ID: <1992Aug25.152103.1532@informatik.uni-wuerzburg.de>
Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!jvnc.net!yale.edu!ira.uka.de!fauern!dec16!winx06.informatik.uni-wuerzburg.de!alex

Show Full Headers
Complete Article Headers
Newsgroups: comp.sys.acorn.tech
Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!jvnc.net!yale.edu!ira.uka.de!fauern!dec16!winx06.informatik.uni-wuerzburg.de!alex
From: alex@winx06.informatik.uni-wuerzburg.de (Alexander Jung)
Subject: FPA and Memory Pinout?
Message-ID: <1992Aug25.152103.1532@informatik.uni-wuerzburg.de>
Sender: news@informatik.uni-wuerzburg.de (USENET News account)
Organization: University of Wuerzburg, Germany
Date: Tue, 25 Aug 1992 15:21:03 GMT
Lines: 31