There are a couple of not-too-subtle differences between the WD1010 and the
2010. The latter decoded the SDH register via an unused pin on the 1010 so
you could latch that byte and decode it in order to put the drive select and
head select signals on the cable without having to write code and take the
time to write the value twice. It also had an extra bit in the high byte
of the cylinder address. The primary difference, however, was that the 2010
was actually capable of effecting the 56-bit ECC code which the 1010 didn't
support. Since PC makers never place a high premium on any of these
features, the PC didn't see many of the 2010's but that's a reasonable place
to start looking, since they did appear in some PC controllers.
Dick
----- Original Message -----
From: R. D. Davis <rdd_at_smart.net>
To: <classiccmp_at_classiccmp.org>
Sent: Saturday, October 28, 2000 8:40 PM
Subject: Re: AT&T 7300
> On 28 Oct 2000, Eric Smith wrote:
> > need to replace the WD1010 HDC chip with a WD2010.
>
> Does anyone know of a good source for WD2010 ICs? There was also a
> hardware hack (the ICUS upgrade?) to add a second HD.
>
> > The C compiler is K&R (non-ANSI), but there is a port of GCC.
>
> Note that to use the port of GCC, one still needs to have the
> development set.
>
> > There's no X. I tried to build Xlib some years back, so that I'd
> > be able to run X clients (NOT an X server), but I ran into trouble
> > and gave up.
>
> Nice try anyway! :-) How far did you get with this?
>
> > The definitive web site is:
> > http://unixpc.taronga.com/
>
> Thanks for posting this URL! It's been a while since I've done much
> with my 3B1s... I really should get the second one working again.
>
> --
> Copyright (C) 2000 R. D. Davis "The best way to gain a true understanding
of
> All Rights Reserved Wile E. Coyote on the Roadrunner cartoons
is to
> rdd_at_perqlogic.com 410-744-4900 fly, head-first, off a horse into something
like
> http://www.perqlogic.com/rdd a fence or a tree; trust me, this
works." --RDD
>
Received on Sat Oct 28 2000 - 23:15:27 BST