Forrest Christian wrote:

> Yes, I knew I forgot to mention something like that...   I'm counting a
> signal on the order of 10Mhz....  and the comparator output has to be
> really fast - much faster than you could implement even in a very tight
> loop of assembly.
>
> -forrest

Trade code size for speed. Implement the counter as a state machine
so that for any given point only a single bye needs to be checked.
You know for example that after the MSbyte has crossed some
threshold it will test the same the next time.

Even to the extent that the last 64 or 128 cycles are a piece of straight
line code that flips the output at the end and starts at some indexed
location.

It might be surprising what could be done.

Walter..


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