21 Jun
2009
21 Jun
'09
6:38 a.m.
----------------------------------------
From: cclist at sydex.com
To: cctalk at classiccmp.org
Date: Sat, 20 Jun 2009 11:41:19 -0700
Subject: Re: ISA MFM disk controllers
On 20 Jun 2009 at 12:21, Dave McGuire wrote:
Hi
It is not really too hard to write ones own format code
at the port level. I used a XT board on a machine that
didn't have a 8088 or x86.
It wasn't that much to write. The controller does most
of the work.
Dwight
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XT controllers do. But now I recall that Ian said
"WD1003" and I
seem
to recall that that's the AT controller series. I think I remember
using an "IBM Advancced Diagnostics" floppy, or something like that,
for this.
There are lots of third-party low-level formatters--and later, many
included in the BIOS setup screen. Basically, they just make INT 13H
BIOS calls to format a track at a time.
Landmark PC Probe is a good interleave-tester and formatter in my
experience.
--Chuck