Mail Archives: djgpp/1997/04/24/23:30:03
On Fri, 25 Apr 1997, Ove Kaaven wrote:
> But yes, page tables also have a "Present" bit. When this bit is
> clear, everything else in this entry is ignored, and is frequently
> used by the memory manager to store the position on disk where the
> page is saved.
could you mail me some details about page related fields in the offset.
for example could you confirm the following. i do not yet have a reliable
text available to me :(
page tables are two level tables when paging is enabled, the first 12
bits are the offset from the page base, the next 10 point to the page
base in a page directory, and the highest 10 relate to the page directory
itself. where does the "page present" bit located. and if this bit is not
set, where is the present physical location (on disk) stored?
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