In "PIC your personal introductory course" John Morton suggests
simply adding h'27' repetitively. I think that the result won't be quite
random, but it does cycle through a long cycle without repeats.

Most Pseudo Random numbers require multiplication (or iterative addition)
to accomplish. The main requirement is to find a "magic number" that not
only maximizes runtimes without repeats but also avoids easy analysis as a
"SERIES" so that it is easier to avoid prediction. This might be harder on
a "LOW END PIC" than some of the other options. One way of further
confusing the issue, is to use a "RANDOM SEED" such as a random number
created by a different pseudo random number generator, to generate the
base that you multiply/add to etc, every so often.

                                GREY


GRAEME SMITH                         email: grysmith@freenet.edmonton.ab.ca
YMCA Edmonton

Address has changed with little warning!
(I moved across the hall! :) )

Email will remain constant... at least for now.


On Sun, 31 Jan 1999, David Sprenkle wrote:

> I need some code or a algorithm for generating a 8 bit random number on
> a PIC.  Does anyone have any code or an algorithm to accomplish this?
>
> P.S.  I need working code or a working algorithm, not theory.  Thanks.
> I been off the list for a while so I apologize if I am reposting
> anything.
>
> --
> David Sprenkle
>