RE: large memory support for x86

From: Ingo Molnar (mingo@elte.hu)
Date: Fri Oct 13 2000 - 14:44:19 EDT

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    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.

            Ingo

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