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From: joel@gould9.UUCP (Joel West)
Newsgroups: net.arch
Subject: Re: ECLIPSE, IBM have same f.p. fmt
Message-ID: <208@gould9.UUCP>
Date: Thu, 12-Dec-85 22:49:51 EST
Article-I.D.: gould9.208
Posted: Thu Dec 12 22:49:51 1985
Date-Received: Sat, 14-Dec-85 03:48:35 EST
References: <973@loral.UUCP> <100000004@ima.UUCP>
Organization: CACI, Inc. -- La Jolla, Calif.
Lines: 20
Summary: Gould, too

In article <100000004@ima.UUCP>, johnl@ima.UUCP writes:
> /* Written  6:41 pm  Dec  9, 1985 by miller@loral in ima:net.micro */
> > I need some information on the floating point format of the Data General 
> > ECLIPSE type 32-bit (MV-10000) Computers.  I tried contacting the local 
> > Data General office but all they seemed interested in was a P.O.  so they 
> > could answer my question.
> 
> Your local DG office must be woefully underinformed.  DG has always used
> exactly the same floating point format as the IBM 360/370 series, that is
> 1-bit sign, 7-bit exponent, and 6 (float) or 14 (double) hex digits of
> fraction.  The exponent is excess-64, and is powers of 16 not of 2.  The 360
> floating point format is well-known if not well-liked.

Curiously, the Gould (SEL) machines are the same way.  I assume it
was not for DG-compatibility. :-)
-- 
	Joel West	 	(619) 457-9681
	CACI, Inc. Federal, 3344 N. Torrey Pines Ct., La Jolla, CA  92037
	{cbosgd,ihnp4,pyramid,sdcsvax,ucla-cs}!gould9!joel
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