Re: Plan 9 grids with AMD64 CPUs

Plan 9 already provides a flat address space and one size of pointer
(there are no near nor far pointers); AMD64 just makes that flat
address space much larger.

The extra (and wider) general-purpose registers will help (and are
long overdue, but still aren't as plentiful as what most RISCs
provide).  Not having to use the clumsy 387 FP stack should also help
in generating better, more straight-forward code.

What's more interesting to me is that one can build multi-processor
systems out of AMD64 processors, apparently with no extra glue.