Which of the following register is not used in opcode fetch operations?

Electronics and Communication Engineering (ECE) : Microprocessors - Quiz(MCQ)

Flag register

Program counter

Memory data register

Memory address register

Correct Answer : Option (A) : Flag register

Explanation : Flag register is not used in opcode fetch operations. It is used to represent the status of ALU operation which is performed after decoding of the opcode.

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