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Instruction Set of 8085 Microprocessor – 1 – 2

6. Which of the following has immediate addressing mode :

(a) MVI B, 25H
(b) LDA 3400H
(c) STAX H
(d) MOV A, M

ANSWER

EXPLANATION

7. Which of the following has implicit addressing mode :

(a) MVI B, 25H
(b) LDA 3400H
(c) ADC B
(d) RAL

ANSWER

EXPLANATION

8. Which of the following has direct addressing mode :

(a) STA 4567H
(b) STAX B
(c) ADI, 30H
(d) SUB M

ANSWER

EXPLANATION

9. Which of the following has indirect addressing mode :

(a) STA 4567H
(b) STAX B
(c) ADI, 30H
(d) SUB C

ANSWER

EXPLANATION

10. Which of the following has register addressing mode :

(a) DAD B
(b) STAX B
(c) ADI, 30H
(d) SUB M

ANSWER

EXPLANATION

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