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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: aliased & packed?
Date: 1997/05/12
Date: 1997-05-12T00:00:00+00:00	[thread overview]
Message-ID: <EA33z0.2ts@world.std.com> (raw)
In-Reply-To: dewar.863449539@merv


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




  reply	other threads:[~1997-05-12  0:00 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-05-11  0:00 aliased & packed? tmoran
1997-05-11  0:00 ` Robert Dewar
1997-05-11  0:00   ` Tom Moran
1997-05-12  0:00     ` Robert Dewar
1997-05-12  0:00       ` Robert A Duff [this message]
     [not found]         ` <1997May13.065907.1@eisner>
1997-05-13  0:00           ` Robert A Duff
1997-05-13  0:00             ` Larry Kilgallen
1997-05-14  0:00             ` Richard Kenner
1997-05-13  0:00           ` Robert Dewar
  -- strict thread matches above, loose matches on Subject: below --
1997-05-09  0:00 Tom Moran
1997-05-09  0:00 ` Stephen Leake
1997-05-09  0:00   ` Tom Moran
1997-05-10  0:00 ` Robert Dewar
replies disabled

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