The routine I ended up with resembled the technique used by phillip m gallo in his last post. For that, I did use a 16 bit division technique, but that works by doing repetitive subtraction. The other technique with the remainder also needs 16 bit division, so that was roughly equivalent too. I was just hoping for a more direct approach using less clock cycles because this is being used in an application already involving two busy serial ports (one using SBUF and the other a software uart) on a good old fashion 8751H. Btw, I really enjoy some of the things on this site (and this is where I picked up a few routines like the 16 bit division and multiply routines I needed). These are things you can always do, but why reinvent the wheel when someone has already cleaned it up and does it all in registers!