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MCQ

Q.

The instructions that are used to call a subroutine from the main program and return to the main program after execution of called function are

A

CALL, JMP

B

JMP, IRET

C

CALL, RET

D

JMP, RET

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MCQ

1.

The instruction that loads effective address formed by destination operand into the specified source register is

A

LEA

B

LDS

C

LES

D

LAHF

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2.

Which of the following is a mnemonic?

A

ADD

B

ADC

C

AAA

D

ADD & ADC

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3.

Which of the following is not a machine controlled instruction?

A

HLT

B

CLC

C

LOCK

D

ESC

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4.

The instruction that converts the result in an unpacked decimal digits is

A

AAA

B

AAA

C

AAM

D

All of the mentioned

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5.

The expansion of DAA is

A

decimal adjust after addition

B

decimal adjust before addition

C

decimal adjust accumulator

D

decimal adjust auxiliary

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