This is interesting, so there could be cases were want to copy CC
register when doing SMS. what happens if we want to move the set of a
CC to another iteration of the loop ? or the use of the CC ? but
usually this is couldn't happen in a simple loop, right? the use of CC
is eventually used in a branch, or there is something that I am
missing ?Basically, you can't move one half of the set/use CC. That's one of the reasons why very few (any?) machines use CC0 anymore.
