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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: aliased & packed?
Date: 1997/05/12
Message-ID: <EA33z0.2ts@world.std.com>#1/1
X-Deja-AN: 241136365
References: <5l5llv$4e@lotho.delphi.com> <dewar.863401335@merv>
 <3376B2F0.7CE4@bix.com> <dewar.863449539@merv>
Organization: The World Public Access UNIX, Brookline, MA
Newsgroups: comp.lang.ada
Date: 1997-05-12T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <dewar.863449539@merv>, Robert Dewar <dewar@merv.cs.nyu.edu> wrote:
>However, it is not silly to put it in necessarily, since you can imagine
>a machine that allows independent addressability of characters, but 
>still has a cost associated with 8-bit packing of characters. The old
>alpha comes close to being like that, but actually on the Alpha, we decide
>to pack this by default anyway.

I'm curious: How much is the cost, on the alpha, of accessing the array
by 8-bit bytes?  And which models of Alpha are we talking about, and
when did they come out?  I only have the very early description of the
alpha architecture, so I have no idea what's the difference between the
21x64, for various x.

- Bob