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Welcome to the 8086 Instruction Set MCQs Page

Dive deep into the fascinating world of 8086 Instruction Set with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8086 Instruction Set, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8086 Instruction Set, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Microprocessor.

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Check out the MCQs below to embark on an enriching journey through 8086 Instruction Set. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of 8086 Instruction Set. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8086 Instruction Set MCQs | Page 1 of 9

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Q1.
The instruction that is used to transfer the data from source operand to destination operand is

a.

data copy/transfer instruction

b.

branch instruction

c.

arithmetic/logical instruction

d.

string instruction

Discuss
Answer: (a).data copy/transfer instruction
Q2.
Which of the following is not a data copy/transfer instruction?

a.

MOV

b.

PUSH

c.

DAS

d.

POP

Discuss
Answer: (c).DAS
Q3.
The instructions that involve various string manipulation operations are

a.

branch instructions

b.

flag manipulation instructions

c.

shift and rotate instructions

d.

string instructions

Discuss
Answer: (d).string instructions
Q4.
Which of the following instruction is not valid?

a.

MOV AX, BX

b.

MOV DS, 5000H

c.

MOV AX, 5000H

d.

PUSH AX

Discuss
Answer: (b).MOV DS, 5000H
Q5.
In PUSH instruction, after each execution of the instruction, the stack pointer is

a.

incremented by 1

b.

decremented by 1

c.

incremented by 2

d.

decremented by 2

Discuss
Answer: (d).decremented by 2
Q6.
The instruction that pushes the contents of the specified register/memory location on to the stack is

a.

PUSHF

b.

POPF

c.

PUSH

d.

POP

Discuss
Answer: (c).PUSH
Q7.
In POP instruction, after each execution of the instruction, the stack pointer is

a.

incremented by 1

b.

decremented by 1

c.

incremented by 2

d.

decremented by 2

Discuss
Answer: (c).incremented by 2
Q8.
The instructions that are used for reading an input port and writing an output port respectively are

a.

MOV, XCHG

b.

MOV, IN

c.

IN, MOV

d.

IN, OUT

Discuss
Answer: (d).IN, OUT
Q9.
The instruction that is used for finding out the codes in case of code conversion problems is

a.

XCHG

b.

XLAT

c.

XOR

d.

JCXZ

Discuss
Answer: (b).XLAT
Q10.
The instruction that loads effective address formed by destination operand into the specified source register is

a.

LEA

b.

LDS

c.

LES

d.

LAHF

Discuss
Answer: (a).LEA
Page 1 of 9

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