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Re: [f-cpu] Bit Shuffler (Take 2)

Michael Riepe wrote:
> I'm afraid we're hitting the `6 gates' rule with the bit shuffling
> unit, no matter how we implement it.  Maybe we should add a second
> stage to the `bitwise' pipeline (shift/rot/bitrev operations).

Lets get the whole thing working, then aim for speed.
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