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The VM (virtual mode) flag is to be set, only when 80386 is in

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in Microprocessor by (39.4k points)
The VM (virtual mode) flag is to be set, only when 80386 is in

(a) virtual mode

(b) protected mode

(c) either virtual or protected mode

(d) all of the mentioned

This question was addressed to me by my college professor while I was bunking the class.

My question is taken from Register Organisation of 80386 -1 in portion 32-bit Processors-80386, 80387 and 80486 of Microprocessor

1 Answer

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by (49.2k points)
Correct answer is (b) protected mode

Easiest explanation: If VM flag is set, the 80386 enters the virtual 8086 mode within the protected mode. This is to be set only when the 80386 is in protected mode.

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