8086 Microprocessor Questions

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21.

. The 16 bit flag of 8086 microprocessor is responsible to indicate ___________

A

the condition of result of ALU operation

B

the condition of memory

C

the result of addition

D

the result of subtraction

Correct Answer: A

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22.

The CF is known as ________

A

carry flag

B

condition flag

C

common flag

D

single flag

Correct Answer: A

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23.

. The SF is called as ________

A

service flag

B

sign flag

C

single flag

D

condition flag

Correct Answer: B

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24.

. The OF is called as _______

A

overflow flag

B

overdue flag

C

one flag

D

over flag

Correct Answer: A

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25.

. The IF is called as _________

A

initial flag

B

indicate flag

C

interrupt flag

D

inter flag

Correct Answer: C

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26.

. The register AX is formed by grouping ________

A

AH & AL

B

BH & BL

C

CH & CL

D

DH & DL

Correct Answer: A

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27.

. The SP is indicated by ________

A

single pointer

B

stack pointer

C

source pointer

D

destination pointer

Correct Answer: B

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28.

. The BP is indicated by _______

A

base pointer

B

binary pointer

C

bit pointer

D

digital pointer

Correct Answer: A

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29.

. The SS is called as ________

A

single stack

B

stack segment

C

sequence stack 

D

random stack

Correct Answer: B

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30.

. The index register are used to hold _______

A

memory register

B

offset address

C

segment memory

D

offset memory

Correct Answer: A

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