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The Saturday 2007-01-20 at 11:26 +0100, Theo v. Werkhoven wrote:
> > > Well, my instructors in the early '70's told me that a byte was
> > > analogous to "bite" -- not the smallest "bit" accessible, but smaller
> > > than the full-size "word" of most architectures of the time. And some
> > > architectures do allow you direct access to a bit.
>
> Why only some?
> Aren't shift- and logical operations part of all CPU architectures?
That's not direct access to a bit, IMO. Direct access would be an
operation that would load into a register a certain bit, or another that
would compare directly to a certain bit in a byte in memory (in one op). I
have never seen it, though.
- --
Cheers,
Carlos E. R.
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