Re: [PATCH] Start of compat32.h (again)

Mikael Pettersson (mikpe@csd.uu.se)
Mon, 2 Dec 2002 18:01:47 +0100


Jakub Jelinek writes:
> The fastest model on x86-64 would IMHO be a 32-bit model using all
> registers, rip relative addressing and register passing conventions
> (ie. a 3rd ABI).

When not doing Linux hacks I work on compilers and runtime systems,
and I agree that a model with x86_64 native mode enabled (and thus
the extra registers and addressing modes) but still in a 32-bit
address space looks like a very interesting option for those
applications that don't need tons of address space.

/Mikael
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