On Wed, Feb 22, 2006 at 10:41:34AM -0700, Bob Axtell wrote:
> Spehro has it right- to use the code access capability of the
> F877 allows the LUT to handle all of it, i.e. 2 bits for 100s, 4
> bits for tens, 4-bits for ones places, a total of 10 bits. BUT, it uses
> over 260 code words. Would run about 9 cycles to extract a
> lookup value, however, faster than my earlier suggestion.

As a compromise you could save about half that space (at the cost of a
few cycles) by first right-shifting, dividing by 5 using a half-size
LUT, and adding the LSB back into the remainder at the end.

Chris
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