Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uwmcsd1!marque!uunet!mcvax!ukc!etive!hwcs!neil
From: neil@cs.hw.ac.uk (Neil Forsyth)
Newsgroups: comp.sys.atari.st
Subject: Line A and Hard Disks
Keywords: No connection, of course :-)
Message-ID: <1971@brahma.cs.hw.ac.uk>
Date: 21 Sep 88 09:13:24 GMT
Organization: Computer Science, Heriot-Watt U., Scotland
Lines: 44




I was poking around in Neochrome the other day (is that illegal?) and found
some more negative Line A offsets.

Screen width    -$2B4   # Note: The mouse pointer is clipped by these

Screen height   -$2B2

Colours         -$29A

Mouse X         -$258   # These change even when mouse cursor is disabled

Mouse Y         -$25A

Since they are in Neochrome and work with both ROM 1.00 and 1.02 then I assume
they are officially supported. Thanks to his involvement with the BIOS Dave
Staugas seems to be in a rather privileged position to know all this sort of
stuff. Would Atari care to comment on these locations?

Now a different topic. I have a Xebec S1410A SASI controller board connected
to a Hitachi DK511 40MB disk drive. When I do a system reset the heads take
quite a time (and small steps) to get back to the boot partition C. If I have
accessed partion E or F the ST times out and I have to press reset again.
There is no problem going from F to C during normal usage only at reset and
I know from experimentation that the problem does not involve the ST hardware
or host card. Is this just a quirk of the Xebec that I have to live with or
does someone know of a solution?

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! Neil Forsyth                           JANET:  neil@uk.ac.hw.cs             !
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