Processor Flow Quiz

Processor Flow Quiz

12th Grade

15 Qs

quiz-placeholder

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Processor Flow Quiz

Processor Flow Quiz

Assessment

Quiz

Engineering

12th Grade

Practice Problem

Medium

Created by

Julian Antonio Sison

Used 3+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the `MOVSB` instruction do in assembly?

Moves a word from the source to the destination.

Moves a byte from the source to the destination.

Moves a byte from one register to another.

Copies a byte from the destination to the source.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which register is typically used for string manipulation as the source index?

BX

SI

AX

DI

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The `REP` prefix is used with which type of instructions?

String instructions

Bitwise instructions

Arithmetic instructions

Control flow instructions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which flag is checked to determine if a string comparison using `CMP` was successful?

Overflow Flag (OF)

Zero Flag (ZF)

Carry Flag (CF)

Sign Flag (SF)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the `INT` instruction in assembly language?

To perform arithmetic operations on integers.

To define a new data type in assembly language.

To allocate memory for variables.

To generate a software interrupt for system calls or event handling.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which instruction is used to clear the carry flag?

RLC

SBC

CLC

STC

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the `LODSB` instruction do?

The LODSB instruction loads a byte from memory into the AL register.

The LODSB instruction loads a byte from the AL register into memory.

The LODSB instruction stores a byte from the AL register into memory.

The LODSB instruction loads a word from memory into the AX register.

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