Re: [avr-gcc-list] Question about gcc preprocessing and port/pin assignments

[E. Weddington]

Ned Konz wrote:

> What I haven't figured out a pleasant way to do yet is to deal with those 
> cases where an interrupt handler might be changing an otherwise non-volatile 
> register.
>
>  
They only way to deal with it is to mark them as volatile. That's the 
other case where volatile is needed...