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re: how to tell if a process is 64-bit

> Is the answer "it's using an ISA with 64-bit registers and addresses"?
> This actually can be broken down into the "registers" and "addresses"
> portion, but, in practice, the two tend to go together.  (Always true
> on most "64-bit" ports, a real question on amd64 (and others, if any)
> which support 32-bit userland.)

actually -- our mips64 ports largely use N32 userland, which
is 64 bit registers and 32 bit addresses.  this is also what
linux calls "x32" for x86 platforms.  obviously, this does
require a 64 bit cpu.


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