Path: utzoo!attcan!uunet!van-bc!
From: lphillips@lpami.wimsey.bc.ca (Larry Phillips)
Newsgroups: comp.sys.amiga
Subject: Re: Misunderstanding about my q. CrossDos (or something else ...) on a PC ?
Message-ID: <1966@lpami.wimsey.bc.ca>
Date: 11 Sep 90 20:40:18 GMT
Lines: 27
Return-Path: <lpami!lphillips>
To: van-bc!rnews

In <45708@cornell.UUCP>, johnhlee@svax.cs.cornell.edu (Johnny H. Lee) writes:
>
>Also, the Amiga does not have GCR encoding support in hardware.  GCR encoding
>must be done by software (as is MFM, FM, RLL or any other encoding scheme.)
>It is because of the simplicity of the Amiga's disk controller w.r.t. raw
>disk bits that gives it its flexibility (software reads from and writes to
>the chip a stream of raw disk bits.)

Since we are picking nits, I'll pick this one. The Amiga does indeed have
hardware support for GCR in at least one way. See page 243 of the Hardware
Reference Manual, where you set Precomp for MFM or GCR. Agreed that the actual
encoding/decoding needs to be done in software.

>Other than that, I agree with everything Lupe said.

Other than that, I agree with everything Johnny said.

-larry

--
It is not possible to both understand and appreciate Intel CPUs.
    -D.Wolfskill
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|   //   Larry Phillips                                                 |
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