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more insight into BIOS MTRRs (Users)

posted by Ninho(R) E-mail, 26.03.2011, 11:41

>> MTRRLBE is designed (mainly) for real mode (DOS), there paging nor the PAT
>> mechanism can work !

> Not for realmode progs only. DJGPP apps using CWSDPMI that supports and
> enable paging.

Granted - hence my "mainly" parenthesis - however what need is there to mess with memory typing under a protected mode OS which has set it up itself ;=)

Especially considering such OSes use page table flags for that purpose rather than MTRRs, as noted up thread.

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N.

 

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