Which of the following is a 2-word instruction set?

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

IN 01H

MOV A, B

LDA 2500H

JMP 2085H

Correct Answer : Option (A) : IN 01H

Explanation : LDA 2500H and JMP 2085H are 3-word instructions. MOV A, B is a 1-word instruction. IN 01H is a 2-word instruction, the first byte specifies the opcode and the second byte specifies the operand.

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