Messages in this thread | | | Date | Tue, 10 Jul 2001 12:01:13 -0500 | From | Timur Tabi <> |
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Jesse Pollard wrote:
>>So what are the limits without using PAE? Here I'm still having a little >>problem finding definitive answers but ... >> >3 GB. Final answers are in the FAQ, and have been discussed before. You can >also look in the Intel 80x86 CPU specifications. > >The only way to exceed current limits is via some form of segment register usage >which will require a different compiler and a replacement of the memory >architecture of x86 Linux implementation. >
Are you talking about using 48-bit pointers?
(48-bit pointers, aka 16:32 pointers, on x86 are basically "far 32-bit pointers". That is, each pointer is stored as a 48-bit value, where 16 bits are for the selector/segment, and 32 bits are for the offset.
-- Timur Tabi Interactive Silicon
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