Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!bloom-beacon!think!husc6!endor!siegel
From: siegel@endor.harvard.edu (Rich Siegel)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Endless inSANEity...
Message-ID: <2092@husc6.harvard.edu>
Date: 20 Jun 89 22:19:05 GMT
References: <227700009@uxa.cso.uiuc.edu> <2089@husc6.harvard.edu> <14001@dartvax.Dartmouth.EDU>
Sender: news@husc6.harvard.edu
Reply-To: siegel@endor.UUCP (Rich Siegel)
Organization: Symantec/THINK Technologies, Bedford, MA
Lines: 35

In article <14001@dartvax.Dartmouth.EDU> earleh@eleazar.dartmouth.edu (Earle R. Horton) writes:

>     Actually, double is 64 bits.  SANE defines four data types:
>Single, double, computational, and extended have 32, 64, 64, and 80
>bits respectively.  MPW is the only C compiler I know of which lets
>you have all four types at the compiler level.  Aztec maps extended to
>double, and from what you say TLSC maps double to extended.  (I am

	Sorry about that - I meant 'extended', but my fingers were still
thinking C. In TLSC, the 'double' data type is 80-bit (or 96-bit, depending
on options) SANE Extended, and 'short double' is the 64-bit IEEE
double-precision data type. 

>     Actually, since the first Mac had 128k of RAM, I would say that
>Apple had a fairly reasonable reason for storing extended in 80 bits.
>Kind of like storing flags in the high bits of master pointers.

	What does that have to do with the price of tea in China?
I don't follow the correlation.

		-R.



~~~~~~~~~~~~~~~
 Rich Siegel
 Staff Software Developer
 Symantec Corporation, Language Products Group
 Internet: siegel@endor.harvard.edu
 UUCP: ..harvard!endor!siegel

 I classify myself as a real developer because my desk is hip-deep in
 assembly-language listings and I spend more than 50% of my time in TMON.

~~~~~~~~~~~~~~~