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The descriptors that are used for subroutines and interrupt service routines are

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The descriptors that are used for subroutines and interrupt service routines are

(a) data segment descriptors

(b) gate descriptors

(c) code segment descriptors

(d) system segment descriptors

The question was asked in semester exam.

My question is taken from Protected Virtual Address Mode (PVAM) -1 topic in division 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

1 Answer

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Correct choice is (b) gate descriptors

Explanation: For data segment, the corresponding descriptor may be data segment descriptor and for code segment, there may be code segment descriptor. For subroutines and interrupt service routines there are gate descriptors.

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