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After every response to the single step interrupt the flag that is cleared is

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in Microprocessor by (39.4k points)
After every response to the single step interrupt the flag that is cleared is

(a) IF (Interrupt Flag)

(b) TF (Trap Flag)

(c) OF (Overflow Flag)

(d) None of the mentioned

I had been asked this question in an international level competition.

My question is from Interrupt Cycle of 8086/8088 in section Special Architectural Features and Related Programming of Microprocessor

1 Answer

0 votes
by (49.2k points)
The correct choice is (b) TF (Trap Flag)

The best I can explain: If the trap flag is set then the processor enters the single step execution mode. After the execution, the trap flag is cleared.

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