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Date:      Wed, 6 Mar 1996 15:41:55 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        nate@sri.MT.net (Nate Williams)
Cc:        terry@lambert.org, hackers@freebsd.org
Subject:   Re: Triton-II support... when?
Message-ID:  <199603060511.PAA23194@genesis.atrad.adelaide.edu.au>
In-Reply-To: <199603060056.RAA25844@rocky.sri.MT.net> from "Nate Williams" at Mar 5, 96 05:56:36 pm

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Nate Williams stands accused of saying:
> 
> Terry Lambert writes:
> > > o  adds support for ECC memory
> > 
> > Still no parity, eh?  8-).
> 
> ECC memory is parity memory.

You mean Triton-II supports parity, and they're calling it ECC, or Triton-II
supports ECC, and you're calling ECC parity?

The latter is arguably incorrect, and is certainly incorrect in common 
usage.  ECC setups usually use 39-bit stores for 32-bit words and Gray
coding (or a variation theron) to provide single-bit correction and double-
bit error detection.

> Nate

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
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