> Other than being bad form, are there any problems with using SFR's
> such as ADRESH and ADRESL for some temporary RAM space (assuming the
> ADC is off)?
>
> Cheers,
> -Neil.
>
Nope. I almost always use up TMR2, TIMER1, PR2, ADRESL. I think ADRESH is
less than 8 bits. I've even used SBRGH (sp?) sometimes when I don't need a
serial port.

Another uncommon use for SFR's is that when you are writing code for
slight variants (PIC16F876A vs PIC16F877A) I test different SFRs to
determine what processor is running, so I can know about analog, port
availability, etc. That way, the code can be universal with slight
different branches in the code.

--Bob

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist