[WinMac] CPU mode switching [WAS: Re: nt postscript]


Dan Schwartz(expresso[at]snip.net)
Wed, 13 Jan 1999 22:11:57 -0500


        Dear Alex:

        Protection from an errant User Mode application (CPU Ring 3) from
interfering with Kernel Mode service (CPU Ring zero), also known as
"Supervisor Mode." This is why NT has its stability... and also why it's a
memory and CPU resource hog.

At 09:17 PM 1/13/99 -0500, Alex replied:
>> True: That is because of NT's "protection..." Sort of like using a tin can
>>for a condom! :)
>
>protection from what?
>
>Alex Dearden
>pata@doglover.com

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