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From: terry@cs.weber.edu (A Wizard of Earth C)
Subject: Re: Finding untranslated params for IDE drives (w/ pgm)
Message-ID: <1992Oct25.112332.25964@fcom.cc.utah.edu>
Sender: news@fcom.cc.utah.edu
Organization: University of Utah Computer Center
References: <1992Oct18.153007.28120@crash> <1992Oct19.053131.11296@tfs.com> <BwLopC.82n@flatlin.ka.sub.org>
Date: Sun, 25 Oct 92 11:23:32 GMT
Lines: 32
In article <BwLopC.82n@flatlin.ka.sub.org>, bad@flatlin.ka.sub.org (Christoph Badura) writes:
|> In <1992Oct19.053131.11296@tfs.com> julian@tfs.com (Julian Elischer) writes:
|> >Terry feels that tehhe translation in IDE drives is done by the BIOS
|> >support routines, though I was dubious about this (but hey
|> >I don't have an IDE drive so what do I know)
|>
|> Terry feels wrong. IDE translation is done "on the drive", because you
|> can hook up translated IDE drives to machines that know zilch about
|> IDE, because IDE didn't exist when their BIOS was programmed.
Terry feels this from disassembling the BIOS *on board* an IDE controller;
one wonders how AMI BIOS drive type 47 works when the drive hardware only has
access to the CMOS settings through it's controller firmware?
Terry also feels that, were the translation 100% transparent, no one trying to
load both DOS and 386BSD on an IDE drive would ever have problems related to
translation. Terry wonders *why* the software is sensitive to the "transparent"
translation of cylinder boundries if Christoph is right?
Terry Lambert
terry@icarus.weber.edu
terry_lambert@novell.com
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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