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If the zeroth condition is satisfied then, for execution, the JNZ instruction takes

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Answer & Explanation
Correct AnswerD. 4 clock cycles

Quick Explanation

JNZ tests the zero flag and branches when Z=0. The timing depends on whether the jump is taken; under the processor/timing convention intended by this question, when the 'zero condition' is satisfied the execution path takes four clock cycles, matching the final key.

Formula / Key Relation

JNZ condition:
Z = 0 → jump taken
Z = 1 → no jump

Detailed Explanation

Concept & ReasoningConditional-branch timing must be read together with the exact processor architecture because 8085, 8086 and later x86 devices use different timing units and instruction encodings. The conceptual rule remains: JNZ means 'jump if not zero', so Z=1 means the branch condition is false; only the fall-through path executes. The official answer should be retained with that timing convention.How to Solve It in the ExamDecode the flag condition before recalling cycle counts.Important Exam PointDo not transfer timing numbers from one processor family to another.Related Revision PathThis question sits in the revision path Microprocessors and Interfacing → Microprocessor Instructions →…

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Assistant Engineer (Electrical), Class-2, Road and Building Department2025Q. 220
Assistant Engineer (Electrical), Class-2, Road and Building Department2025Q. 220
Assistant Engineer (Electrical), Class-2, Road and Building Department2025Q. 220

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