Implemented the dispatch loop for AMD64.  Works at least enough to do
through once, failing to find the translation, and falling back to the
scheduler.

Did a couple of minor associated cleanups too.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3171 a5019735-40e9-0310-863c-91ae7b9d1cf9
4 files changed