Question: Explain the meaning To change the mode: - Push the flag register onto the stack with PUSHF (not privileged), - Modify the IOPL flag, -

Explain the meaning To change the mode: - Push the flag

Explain the meaning

To change the mode: - Push the flag register onto the stack with PUSHF (not privileged), - Modify the IOPL flag, - Pop the modified flags back into the flag register with POPF (privileged why?) Once in protected mode, always in protected mode

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