Instruction Set of 8085 Microprocessor – 1 – 1

1. What is the addressing mode of MOV M,C ?

(a) Direct
(b) Indirect
(c) Register
(d) Implicit

ANSWER
Answer : (b)

EXPLANATION
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2. A mp with 12 address lines is capable of addressing :

(a) 1024 locations
(b) 2048 locations
(c) 4096 locations
(d) 64K locations

ANSWER
Answer : (a)

EXPLANATION
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3. Which of the following has direct addressing mode :

(a) MVI B, 25H
(b) LDA 3400H
(c) LXI B, 2189H
(d) MOV A, M

ANSWER
Answer : (d)

EXPLANATION
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4. Which of the following has indirect addressing mode :

(a) MVI B, 25H
(b) LDA 3400H
(c) LXI B, 2189H
(d) MOV A, M

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.

5. Which of the following has register addressing mode :

(a) MVI B, 25H
(b) LDA 3400H
(c) LXI B, 2189H
(d) MOV A, M

ANSWER
Answer : (a)

EXPLANATION
No answer description available for this question. Let us discuss.

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