Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!oliveb!sun!chiba!khb
From: khb%chiba@Sun.COM (Keith Bierman - Sun Tactical Engineering)
Newsgroups: comp.arch
Subject: Re: 64 bits
Message-ID: <82686@sun.uucp>
Date: 21 Dec 88 19:11:41 GMT
References: <28200249@mcdurb> <451@babbage.acc.virginia.edu> <1951@scolex>
Sender: news@sun.uucp
Reply-To: khb@sun.UUCP (Keith Bierman - Sun Tactical Engineering)
Organization: Sun Microsystems, Mountain View
Lines: 21

In article <1951@scolex> seanf@sco.COM (Sean Fagan) writes:
>> It's long past time that computer systems - compilers and/or
>> ALUs - supported >32 bit integers. 64 bits here we come!
>
>Well, Crays are 64-bit machines, 

But not with 64-bit integers! 

	do i = 1, n
           stuff
	end do

is compiled (if I recall correctly) on a cray x series machine to use
the address registers for i. The result is 24-bit max do loop.

It is possible that later compilers, and the new machines (2, Y),
don't have this limitation.



Keith H. Bierman
It's Not My Fault ---- I Voted for Bill & Opus