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📝 Time Delay Introduced by a Register Pair of SAP-III Computer

📖 From An Introduction To Microprocessor 8085 • 4. Simple as Possible (SAP) - III • 38 questions available

Practice MCQs for Time Delay Introduced by a Register Pair of SAP-III Computer. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-30

8
Easy Questions
24
Medium Questions
6
Hard Questions

📝 Sample Questions

Q1. What is the primary reason a register pair introduces additional time delay in the SAP‑III instruction execution?

🔹 A. The pair requires two sequential internal bus transfers
🔹 B. The pair forces the control unit to wait for external I/O
🔹 C. The pair doubles the clock frequency
🔹 D. The pair disables pipeline stages

💡 Difficulty: easy | ✅ Correct: A

Q2. A compiler optimizes code by replacing a 16‑bit register pair with two 8‑bit registers accessed separately. What is the most likely impact on execution time?

🔹 A. It reduces overall delay by eliminating the pair overhead
🔹 B. It increases delay because two separate accesses are required
🔹 C. It has no effect on delay
🔹 D. It causes a cache miss

💡 Difficulty: medium | ✅ Correct: B

Q3. A processor’s documentation states that a register‑pair load takes one extra cycle compared to a single‑register load. Which of the following statements accurately reflects this information?

🔹 A. The pair load always costs exactly one more cycle than a single load
🔹 B. The pair load may sometimes hide the extra cycle through overlapping operations
🔹 C. The pair load never impacts overall execution time
🔹 D. The pair load doubles the execution time of any instruction

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Programming Model of SAP-III Computer📝 Instruction Set of SAP-III Computer📝 Data Transfer Group of SAP-III Computer📝 Arithmetic Group of Instructions of SAP-III Computer📝 Logic Transfer Group of SAP-III Computer
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