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MCQ

The flag that acts as Borrow flag in the instruction, SBB is

direction flag

carry flag

parity flag

trap flag

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In the RCL instruction, the contents of the destination operand undergo function as

carry flag is pushed into LSB & MSB is pushed into the carry flag

carry flag is pushed into MSB & LSB is pushed into the carry flag

auxiliary flag is pushed into LSB & MSB is pushed into the carry flag

parity flag is pushed into MSB & LSB is pushed into the carry flag

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MCQ

In PUSH instruction, after each execution of the instruction, the stack pointer is

incremented by 1

decremented by 1

incremented by 2

decremented by 2

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The ROR instruction rotates the contents of the destination operand to

left

right

left and then right

right and then left

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

AAA

AAM

All of the mentioned

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MCQ

The instructions that involve various string manipulation operations are

branch instructions

flag manipulation instructions

shift and rotate instructions

string instructions

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category More Microprocessor Topics

Microprocessor Basics

Classification

Input Output interfacing

Microcontroller

8085 Architecture

8086 Microprocessor

Multiprocessor Configuration

Peripheral Interface

Register Set of 8051

Serial Communication Unit

Segmentation

Paging

Instruction Set of 8086 8088

Interrupt and Stack of 8051

8051 Instruction Set

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