[Coco] Trouble with check

[Robert Gault]

Robert Gault wrote:
> Arthur Flexser wrote:
>> You say, "This program does not work with RGBDOS as $16A is changed."  
>> But the
>> program copies the 3 bytes initially at $16A-16C before it changes 
>> them, and
>> falls into these stored bytes at the end (CONT).  So, shouldn't it 
>> work okay,
>> even if the initial contents of $16A-16C are different under RGBDOS?
>>
>> Art
> 
> You would think so. Part of the problem is that RGBDOS (and I think 
> HDBDOS) incorporate FlexKey, a Roger Schrag program, that permits line 
> editing via the arrow keys. Since the down arrow is used by both FlexKey 
> and CheckPlus, there is a conflict.
> 
> Actually I've been trying to see how CheckPlus can be modified so that 
> it will work with RGBDOS, but that will take some more studying. The 
> most likely change would be to use a different key than the down arrow 
> to activate the checksum. However, that has not yet worked.
> 

A correction of the routine name. It is FlexiKey by Colin Stearman that 
was incorporated into RGBDOS.