Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool.mu.edu!uunet!mcsun!ukc!strath-cs!ex-dcs!mro
From: mro@dcs.exeter.ac.uk (Marcus)
Newsgroups: comp.sys.atari.st.tech
Subject: STe extended video hardware registers
Message-ID: <3274@izar.dcs.exeter.ac.uk>
Date: 8 May 91 11:13:20 GMT
Organization: Computer Science Dept. - University of Exeter. UK
Lines: 22

In Mathew Lodge's articles about the new hardware in the STe, he detailed
address $FF820E as

"Line offset (LINEWID) - the number of extra words added to the address
 counter at the end of each line ..."

I have had absolutely no success in using this register.

I have tried putting in all the different values I can think of, but
the output doesn't change at all.  I could understand the display being
incorrect, or skewed if I put in a wrong value, but when absolutley
no change occurs, I assume I am using it incorrectly.

I am accessing it using 68000, basically by going into Supervisor mode
and storing a value at location $FF820E.

So, is $FF820E the wrong location, or have I just totally misunderstood
what this register is supposed to achieve?

Thanks for any help

Marcus