Date   : Sun, 14 Mar 2010 20:37:01 +0000 (GMT)
From   : info@... (Sprow)
Subject: Master 128: Hiding a routine from memory clear

In article <B9FBB45CC3DE4146BB4450B58AC84FDA@...>,
   David Harper <dl.harper@...> wrote:
> samwise wrote:

> > I may be way out of my depth (my assembler skills are pretty ropey),
> > but I've been trying to catch a Break or Ctrl+Break (once only) and
> > basically CHAIN a BASIC program. 
> 
> Another alternative (other than patching the program so that it doesn't 
> set the flag) would be to hide away a little timer-triggered interrupt
> routine that cleared the flag.

This is what I did for my 'Corrupt' program
  http://www.sprow.co.uk/bbc/bbconly.htm
which resets it at 50Hz,
Sprow.