[Vm-dev] 64bit FFI?
andreas.raab at gmx.de
Thu Feb 12 19:24:12 UTC 2009
Eliot Miranda wrote:
> So I don't see how this allows one to have a 64-bit VM that can run true
> 64-bit images. What am I missing?
You are mostly confused about the various combinations ;-) Let's start
from first principles: You can run 32bit images on top of 64 bit VMs.
This is achieved by using oopForPointer/pointerForOop.
In order to run 64 bit images you need a 64 bit image to begin with. The
64 bit VM doesn't auto-magically convert your 32bit image into a 64 bit
one. This is done by SystemTracer and friends.
Does that help?
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