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Date:      Tue, 28 Nov 2000 11:22:56 +0000 (GMT)
From:      Doug Rabson <dfr@nlsystems.com>
To:        Jake Burkholder <jburkhol@home.com>
Cc:        John Baldwin <jhb@freebsd.org>, smp@freebsd.org
Subject:   Re: BSD/OS interrupt code 
Message-ID:  <Pine.BSF.4.21.0011281121020.247-100000@salmon.nlsystems.com>
In-Reply-To: <20001127193823.BAA5EBA7A@io.yi.org>

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On Mon, 27 Nov 2000, Jake Burkholder wrote:

> As I said, I wouldn't want to do this for any architecture that I know
> of other than x86.  Its not overly difficult on x86 because everything
> is on a byte boundary.  sparc, alpha, all the risc architectures that
> I know anything about have operands at wierd bit offsets in the
> instruction.

I have written a runtime code-generator for alpha in the past for another
project with similar requirements (pasting together 3D geometry code
fragments) and its actually pretty easy. As far as I remember, it only
took a couple of hours to write.

-- 
Doug Rabson				Mail:  dfr@nlsystems.com
					Phone: +44 20 8348 6160




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