Date   : Mon, 26 May 2003 18:58:29 +0100
From   : Mike Tomlinson <mike@...>
Subject: Re: B+ shadow RAM query

In article <Pine.LNX.4.44.0305261636520.2528-100000@...
org>, jim <24601@...> writes

>It would change, though the OS clears the screen if you go via *SHADOW.
>I'm sure I tried it back in the day (I tried most things).

There's a *FX command that changes the paged in RAM without clearing the
screen, but I can't remember what it is.  It's used on the Master
Compact demo disks to produce smooth animation by flipping between main
and shadow memory.

>Sounds good. Never encountered a shadow board for a model B, though.

My B has a Watford shadow RAM board which works well, and I think it
implements all the * and *FX commands on the B+.