> > I need to implement the following equation in a 16F876.
> > RESULT = (255 / A) * B
> > A and B are bytes (each have possible values of 01 to FF)
> > RESULT is a word (unsigned) for a timer routine counter.

Rearrange your expression to:

    B*255 / A

Now computing B*255 is very easy. Just treat it as

    B*256 - B

This will give you a 16 bit result. Then use a 16 divided by 8 giving 16
routine for the division.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

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