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If the 80386 enters the protected mode from the real address mode, then it returns back to the real mode, by performing the operation of

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If the 80386 enters the protected mode from the real address mode, then it returns back to the real mode, by performing the operation of

(a) read

(b) write

(c) terminate

(d) reset

This question was posed to me in an interview for job.

Origin of the question is Virtual 8086 Mode, The Coprocessor 80387 topic in division 32-bit Processors-80386, 80387 and 80486 of Microprocessor

1 Answer

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by (49.2k points)
Right choice is (d) reset

Explanation: If the 80386 enters the protected mode from the real address mode, then it cannot return back to the real mode without a reset operation.

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