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The CLTS (Clear Task Switch Flag) instruction records every execution of WAIT and ESC and is trapped if the flag(s)

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The CLTS (Clear Task Switch Flag) instruction records every execution of WAIT and ESC and is trapped if the flag(s)

(a) PE (Protection Enable) and TS (task switch) flags are set

(b) Emulate Processor extension flag is set

(c) MP flag and task switched flag is set

(d) PE and MP flag is set

I got this question in an interview.

I would like to ask this question from Instruction Set Features -2 in chapter 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

1 Answer

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by (49.2k points)
Correct choice is (c) MP flag and task switched flag is set

For explanation I would say: The CLTS (Clear Task Switch Flag) instruction records every execution of WAIT and ESC, and is trapped, if the MP flag and task switched flag is set.

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