Quoting Ed Sutton <esutton@engius.com>:

> Are there other ways to implement a divide by a 14 constant other than
> cycle-chewing subtraction loops?
>
> I want to use the PIC16F flash consisting of 14-bit words to store 8-bit
> data.  I can implement the multiply-by-8 as a shift.  The crux of the
> problem is basically the divide by a constant of 14.
>
> Pseudo Code ( actual code will likely be assembly )
>
> wordOffset = 8*byteOffset / 14;          // The integer result
> wordBitOffset = 8*byteOffset % 14;   // The remainder result

Since you need both the quotient and the remainder, and cannot tolerate
any error in either, I think a conventional shift-and-subtract  
division routine
will work pretty well and will generate both numbers at once. Did you  
check the PICLIST code library?

Best regards,
Spehro Pefhany
-- 
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