Date   : Tue, 14 Mar 2006 15:04:22 -0000
From   : "David Harper" <dl.harper@...>
Subject: Re: Model B compatibility on a Master

F. Haroon wrote:

>> ...
>> *FX 200,2 will cause most memory to be cleared on Break (main memory,
>> shadow screen, MOS private RAM and filing system workspace). It will
>> NOT cause SW-RAM to be cleared. If this is still a problem, you can
>> *UNPLUG the SW-RAM banks (banks 4 to 7). (You will, of course, need
>> to *INSERT them (after the Break) before you can use them again.)
>
> I thought it was *Fx 200,3??

Doesn't matter. Bit 0 (value 1) affects "Escape" action. If it is set, then 
Escape is disabled. Bit 1 (value 2) causes any Break to clear memory and be 
treated like a "power-on reset".

*FX 200,1 disables Escape, *FX 200,2 causes memory to be cleared on Break, 
*FX 200,3 does both.

In answer to the original, the disabling Escape is an irrelevance.

David Harper