Article View: comp.sys.atari.st
Article #30296Re: Mediach() function question
From: Gerry Wheeler
Date: Mon, 01 Feb 1988 17:18
Date: Mon, 01 Feb 1988 17:18
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1443 bytes
In article <8801292315.AA23295@orville.nas.nasa.gov>,
rowley@orville.nas.nasa.GOV (Karl Rowley) writes:
> What situation would cause Mediach() to return "maybe"?
>
> Karl Rowley
In one of the recent conferences on BIX, this was brought up. As I
recall, the answer was that Mediach() returns maybe if the disk is
write protected.
The ST uses the write protect line to sense disk changes. If there is
no disk in the drive, the drive reports "protected". If there is a
disk in the drive, then the drive reports whatever the disk is set
for. So, the ST can accurately sense the changing of writeable disks,
but not protected disks. So, if it reads from a protected disk, it
sets the flag to maybe as soon as the drive motor times out, because
it really doesn't know.
--
Gerry Wheeler Phone: (519)884-2251
Mortice Kern Systems Inc. UUCP: uunet!watmath!mks!wheels
35 King St. North BIX: join mks
Waterloo, Ontario N2J 2W9 CompuServe: 73260,1043
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!mks!wheels From: wheels@mks.UUCP (Gerry Wheeler) Newsgroups: comp.sys.atari.st Subject: Re: Mediach() function question Summary: returns maybe if disk is protected Message-ID: <385@mks.UUCP> Date: 1 Feb 88 17:18:12 GMT References: <8801292315.AA23295@orville.nas.nasa.gov> Organization: Mortice Kern Systems, Waterloo, Ont. Lines: 22