Re: [stella] incoming source

Subject: Re: [stella] incoming source
From: Thomas Jentzsch <tjentzsch@xxxxxx>
Date: Sat, 11 Dec 2004 18:10:26 +0100
Thomas Boutell wrote:

> It looks like as soon as the same number comes up, the entire
> sequence repeats.

Yup. (pseudo-random ;-)


> And I saw a repetition after only 128 values. So some bytes must
> never come up. None of which matters if all you need is a reasonably
> random-looking bit or two with a periodicity of at least 128, and I
> think you definitely have that in the rightmost bits at least.

If you use one of the "perfect" XOR values
(http://www.ece.cmu.edu/~koopman/lfsr/8.txt),
the sequence has a periodicity of 255.

Have fun!
Thomas                            
_______________________________________________________
Thomas Jentzsch         | *** Every bit is sacred ! ***
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