Logical Instructions in MCS-51 - MCQs with Answers

Logical Instructions in MCS-51 - MCQs with Answers

Q1. Which form of instructions also belong to the category of logical instructions in addition to bitwise logical instructions?

a. Single-operand instructions
b. Rotate instructions
c. Swap instructions
d. All of the above

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Q2. Which rotate instruction/s has an ability to modify CY flag by moving the bit-7 & bit-0 respectively to an accumulator?

a. RR & RL
b. RLC & RRC
c. RR & RRC
d. RL & RLC

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Q3. Which among the single operand instructions complement the accumulator without affecting any of the flags ?

a. CLR
b. SETB
c. CPL
d. All of the above

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