[commit/RFA/branch] Import sources from cgen/cpu directory

[Tom Tromey]

>>>>> "Joel" == Joel Brobecker <brobecker@adacore.com> writes:

Joel> Any objection why I shouldn't be doing this?  Otherwise, I'll commit
Joel> in a few days, or as soon as the FSF confirms the ISBN change.
Joel> (patch compressed to avoid tripping the 400k email limit).

It seems ok to me, since the important thing is that the files be in the
tarball.

Tom