Peter Bindels <piclist@mit.edu> wrote:

> Choose the LFSR or Galois LFSR types. They at least have a
> mathematical basis, even though they need not be actually
> random they're better than rotating a register.
> ....
> I [am] mainly aiming at the one at the top, that claims to
> rotate with carry and to output that as random (AFAICT).

Peter:

That one's an 8-bit LFSR.  Here's an explanation which shows quite 
clearly that a linear-feedback shift register IS a rotate that 
outputs the carry as the pseudo-random bitstream:

    http://en.wikipedia.org/wiki/Linear_feedback_shift_register

-Andrew

=== Andrew Warren - fastfwd@ix.netcom.com

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