How to let a loop run for a while before checking for break condition?

[Diez B. Roggisch]

> The idea is to speed up a loop by using a timer interrupt interfering 
> with the loop, so that only after the timer interrupt would occur, the 
> loop will start to check its break condition in each iteration.
> No checking of any kind in the loop should happen up to that time to 
> minimize the number of operations in each iteration within the loop 
> itself (i.e. the loop more or less won't know, that there is a timer on 
> its way to change the loops behavior at a later time).

A while loop has a condition. period. The only thing to change that is 
to introduce a uncoditioned loop, and use self-modifying code to make it 
a while-loop after that timer interrupt of yours.

But of course that whole thing is a moot point - if shaving mu-secs on 
that level is needed for your application, use C or assembly instead.


Diez