16/32+ bit multiplication and addition is relatively easy. Division is a major headache.

I had gone thru the Intel files,and i couldn't make head or tails of the code. Hence I didnt use their code, and can't say how,if it does,it truly works (altho' a few of my friends have used it succesfully) It requires a very good understanding of digital math

The point is I did manage to implement 16 bit by 8 bit, and by extension, 32 bit by 8 bit division using a number of 8bit divisions. The algorithm is iterative/recursive however highly hang-prone, and has further complications if the range is to be scaled up.

it is however quite challenging (and maddening) to try and come up with your own algorithms :D

Kundi