Date   : Sun, 22 Jan 2006 16:09:59 +0000
From   : jgh@... (Jonathan Graham Harston)
Subject: Re: Please put my mind to rest!

Sprow <info@...> wrote:
>    Jonathan Graham Harston <jgh@...> wrote:
> > After doing *CAT do PRINT ?&F07. A 40 track disk is likely to
> > return 144 and an 80-track disk is likely to return 32.
> 
> Does OSWord &7E fail with an error if you get 80/40 muddled up? Or is it
> actually useful in returning regardless?
 
As OSWord &7E just reads sector 00:1 (*) and returns the disk size
bytes I would expect it to work regardless of the disk format and
the stepping setting.
 
(*)It probably reads both 00:0 and 00:1 as a general catalogue
fetch, but it only looks at the disk size bytes at 00:1:06 and
00:1:07.
 
-- 
J.G.Harston - jgh@...                - mdfs.net/User/JGH
Sheffield Boundary Review at http://mdfs.net/User/JGH/Docs/Politics/ParlReview