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Subject: Jumping from rmode to pmode in X86

Date: 11/23/00 at 10:56 PM
Posted by: Deepak
E-mail: deepak_warrier@hotmail.com
Message Posted:

Shafeer,
I have a doubt regarding real and protected mode in X86 processors.

"Is software jumping from p-mode to r-mode just a hack? Is the CPU designed to do this? If this is so, is it not possible for a user to write code to crash a secure OS irreversibly?"

If you can't help me, please try to ask any of your friends at bosch.

Thanx,
Deepak


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