See http://www.piclist.org/techref/microchip/math/scale/index.htm

Good stuff there!

Harold

On Fri, 1 Feb 2002 20:50:46 -0200 Edson Brusque <ebrusque@TERRA.COM.BR>
writes:
> Hello,
>
>     I need to multiply a byte by another byte and then divide this
> result by
> 255, like x = y * z / 255.
>
>     At this moment, I'm using CCS-PICC built-in maths, but it's very
> inneficient. The execution time for this calculation is about 1200
> instructions(!).
>
>     Someone have an idea of a very fast math function in assembly to
> make
> this?
>
>     Best regards,
>
>     Brusque
>
> -----------------------------------
> Edson Brusque
> Research and Development
> C.I.Tronics Lighting Designers Ltda
> Blumenau  -  SC  -  Brazil
> www.citronics.com.br
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