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Welcome to the Microoperations MCQs Page

Dive deep into the fascinating world of Microoperations with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Microoperations, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of Microoperations, 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 Computer Architecture.

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Check out the MCQs below to embark on an enriching journey through Microoperations. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Computer Architecture.

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

Microoperations MCQs | Page 1 of 17

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Q1.
The instruction, Add #45,R1 does,

a.

Adds the value of 45 to the address of R1 and stores 45 in that address

b.

Adds 45 to the value of R1 and stores it in R1

c.

Finds the memory location 45 and adds that content to that of R1

d.

None of the above

Discuss
Answer: (b).Adds 45 to the value of R1 and stores it in R1
Q2.
In case of, Zero-address instruction method the operands are stored in _____ .

a.

Registers

b.

Accumulators

c.

Push down stack

d.

Cache

Discuss
Answer: (b).Push down stac
Q3.
Add #45, when this instruction is executed the following happens

a.

The processor raises an error and requests for one more operand

b.

The value stored in memory location 45 is retrieved and one more operand is requested

c.

The value 45 gets added to the value on the stack and is pushed onto the stack

d.

None of these

Discuss
Answer: (b).The value stored in memory location 45 is retrieved and one more operand is requested
Q4.
The addressing mode which makes use of in-direction pointers is ______ .

a.

Indirect addressing mode

b.

Index addressing mode

c.

Relative addressing mode

d.

Offset addressing mode

Discuss
Answer: (a).Indirect addressing mode
Q5.
In the following indexed addressing mode instruction,
MOV 5(R1),LOC
The effective address is ______ .

a.

EA = 5+R1

b.

EA = R1

c.

EA = [R1]

d.

EA = 5+[R1]

Discuss
Answer: (d).EA = 5+[R1]
Q6.
The addressing mode/s, which uses the PC instead of a general purpose register is ______ .

a.

Indexed with offset

b.

Relative

c.

direct

d.

both a and c

Discuss
Answer: (b).Relative
Q7.
When we use auto increment or auto decrement, which of the following is/are true
1) In both, the address is used to retrieve the operand and then the address gets altered.
2) In auto increment the operand is retrieved first and then the address altered.
3) Both of them can be used on general purpose registers as well as memory locations.

a.

1,2,3

b.

2

c.

1,3

d.

2,3

Discuss
Answer: (d).2,3
Q8.
The addressing mode, where you directly specify the operand value is _______ .

a.

Immediate

b.

Direct

c.

Definite

d.

Relative

Discuss
Answer: (a).Immediate
Q9.
The effective address of the following instruction is , MUL 5(R1,R2)

a.

5+R1+R2

b.

5+(R1*R2)

c.

5+[R1]+[R2]

d.

5*([R1]+[R2])

Discuss
Answer: (c).5+[R1]+[R2]
Q10.
_____ addressing mode is most suitable to change the normal sequence of execution of instructions .

a.

Relative

b.

Indirect

c.

Index with Offset

d.

Immediate

Discuss
Answer: (a).Relative
Page 1 of 17

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