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Date:      Wed, 10 Jan 2001 13:45:12 -0800
From:      Mike Smith <msmith@freebsd.org>
To:        Brett Glass <brett@lariat.org>
Cc:        "Matthew N. Dodd" <winter@jurai.net>, hardware@FreeBSD.ORG
Subject:   Re: Intel EtherExpress 16 code? 
Message-ID:  <200101102145.f0ALjCg00858@mass.osd.bsdi.com>
In-Reply-To: Your message of "Wed, 10 Jan 2001 14:00:02 MST." <4.3.2.7.2.20010110135309.0497e990@localhost> 

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> >* Intel EtherExpress ISA (not recommended due to driver instability)
> 
> These cards use a National Semiconductor chip that was used in a few

Actually, no, they don't; the above refers to the 10Mbps cards which use 
the i82586.

> Cisco routers as well. It has a very clean interface, and I'd begun
> to adapt the ed driver to it. (One thing that's nice about it is that 
> you can use REP INSW and REP OUTSW instructions on x86 to transfer
> data with no wait states, giving you the maximum transfer rate that's 
> possible on an ISA bus.) 

... except that I/O cycles on the ISA bus are twice as expensive as 
memory cycles, so rep movw is actually better.

-- 
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also.  But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view.  [Dr. Fritz Todt]
           V I C T O R Y   N O T   V E N G E A N C E




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