> Clearly we *can* but there's other bits (chiefly the cache code once we
> acquire the ability to do block operations from cache) which really want
> stuff to be 8 bit aligned.  I deliberately chose to make things byte
> aligned so we have to think about this stuff before we do things that
> make byte aligned stuff hard, it felt like if we were going to take a
> complexity hit we probably want it to be on the odd register formats as
> pretty much all of the more demanding modern devices seem to be going
> for multiples of 8 bits.

Understood. I'd think we will find a non-intrusive way when a more generic
format_x_y-function seems worthwhile.

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