RE: large memory support for x86

From: Ingo Molnar (
Date: Fri Oct 13 2000 - 13:44:19 EST

On Fri, 13 Oct 2000, Chris Swiedler wrote:

> Why is it that a user process can't intentionally switch segments?
> Dereferencing a 32-bit address causes the address to be calculated
> using the "current" segment descriptor, right? It seems to me that a
> process could set a new segment selector, in which case a dereference
> would operate on a whole new segment. Is there a reason why processes
> are limited to a single segment?

processes are not limited to a single segment, eg. Wine uses nonstandard
segments. But as i said, using multiple segments does not let you out of
32 bits of virtual memory.


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