> I also think that abolishing the term "format prefix" is obfuscation. The
> fact is that the leading bits of an address *are* a format prefix and
> implementors *will* look at those bits before processing an address. Why
> obscure that fact?

Brian,
It is exactly this that we want to avoid - implementors thinking that they
need to inspect the first 3 bits of the addresses.
There is no need to do this and we need to reduce the probability that
implementors hard-code any knowledge of any leading 3 bit combinations
since it will make it harder to use the other 15/16th of the address space
in the future.

  Erik

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