Mail Archives: djgpp/1993/07/28/19:00:45
> > least alowing for protection). I would doubt that it would give a program
> > access to all of memory, but of course it could virtualize it all.
> I checked the docs - it only guarantees the first 1M.
More study shows that the mechanism that DPMI 0.9 uses to do this is
as follows:
* Request that the physical memory be mapped somewhere in linear
address space.
* Allocate a selector
* Tell the selector to point to the linear address space.
The problem is that djgpp isn't geared towards using selectors. Even
supporting this type of operation under non-dpmi is not trivial. It
seems an important feature anyway.
Any Ideas?
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