Plan 9 grids with AMD64 CPUs

The Plan 9 OS was written in real mode, and the its applications are 
all 16 bit. For grid use, it seems that Plan 9 would only be a good
choice for creating inexpensive low performance grids. 

If I want to use Plan 9 in a high performance grid by utilizing 
AMD64 CPUs in 64 bit mode it seems that I am out of luck. I could
use the CPUs in compatability (legacy) mode, but it would be one
step back from maximizing the CPUs best features, IMO. 

Where would one start to port Plan 9 to a 64bit processor? I'd
imagine that one would need to create a new assembler, C compiler 
and a debugger, or modify an existing one. 

I would have posted this to 9fans, but everyone there appears
to be happy with the current level of performance that Plan 9
provides. Granted, there aren't many applications that need
a great deal of computational power; yet. :-/

-- Vester Thacker

A dream is just an unfunded project.