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Date:      Tue, 28 Nov 2000 11:19:24 +1100 (EST)
From:      Bruce Evans <bde@zeta.org.au>
To:        Jonathan Lemon <jlemon@flugsvamp.com>
Cc:        jburkhol@home.com, smp@FreeBSD.ORG
Subject:   Re: BSD/OS interrupt code 
Message-ID:  <Pine.BSF.4.21.0011281105230.677-100000@besplex.bde.org>
In-Reply-To: <200011270238.eAR2c4R55543@prism.flugsvamp.com>

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On Sun, 26 Nov 2000, Jonathan Lemon wrote:

> In article <local.mail.freebsd-smp/20001127015006.5B7BDBA7A@io.yi.org> you write:
> >I also think that BSD/OS went a little too far with this, and
> >have produced code that is very difficult to understand, let
> >alone maintain.  I think its cool what they did, I'm humbled
> >and amazed that they made it work, but I don't know that its
> >right for FreeBSD.
> 
> Seconded.  This pretty much sums up my feeling too.

Me too.  I thought of implementing this for plain 386's 8 years ago,
but didn't think it would be worth doing for 486's.  Even our interrupt
macros probably aren't worth doing starting with 386's (they may have
negative benefits by generating large code which busts the cache).

Bruce



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