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Re: Rep:Re: [f-cpu] Manual 0.2.6
> [... cshift instruction...]
> [... use mix ...]
> > 7 cycles for 8 chunks, that's quite good. So no need of a more complex
> > instruction for small chunk and the cshift[l/r] will be enough (perhaps a
> > immediate version will be usefull).
>
> An immediate version (cshift[rl]i) is not a problem.
>
> I think an `arithmetic' right shift (cshiftra) is not useful; but what
> about rotates (crotl/crotr)?
I agree for the arithmetic right shift. For a rotates (crot[l/r]), I think it
depend of move. If move work with different size, it can be usefull,
because we can extract more quickly a data from the register.
So I am for.
Cedric
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