Question

How does the compiler handle a pretested loop when the counter value comes from an external source?

a.

The compiler adds an unconditional jump at the end of the loop

b.

The compiler moves the comparison to the beginning of the loop

c.

The compiler adds an extra condition at the beginning of the loop

d.

The compiler terminates the loop prematurely

Posted under Reverse Engineering

Answer: (c).The compiler adds an extra condition at the beginning of the loop Explanation:When the counter value comes from an external source, the compiler adds an extra condition at the beginning of the loop to make sure that the loop is not entered if the counter has an illegal value.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. How does the compiler handle a pretested loop when the counter value comes from an external source?

Add Comment

Similar Questions

Discover Related MCQs

Q. What is the purpose of the unconditional jump at the end of a pretested loop?

View solution

Q. What is the potential risk with the implementation of a pretested loop?

View solution

Q. What happens if the counter comes from an unknown source in a pretested loop?

View solution

Q. How does the compiler generate assembly code for do...while() loops?

View solution

Q. What is a loop break condition?

View solution

Q. How is a loop break condition implemented in C and C++?

View solution

Q. What is the purpose of the break statement?

View solution

Q. What is a loop break condition and how is it implemented in C and C++?

View solution

Q. What is a loop skip-cycle statement and how is it implemented in C and C++?

View solution

Q. What is the difference between a for loop and a while loop with regards to loop skip-cycle statements?

View solution

Q. What is loop unrolling and what is its purpose?

View solution

Q. Why is loop unrolling more efficient?

View solution

Q. What is the more aggressive type of loop unrolling?

View solution

Q. What is the main goal of branchless logic optimization?

View solution

Q. What are the two major types of branchless logic code emitted by popular compilers?

View solution

Q. What is the disadvantage of conditional jumps in pipelined CPUs?

View solution

Q. Why is reducing the number of jumps important for modern processors?

View solution

Q. What is the purpose of using conditional instructions in compilers?

View solution

Q. What is the difference between the SETcc and Jcc instructions in IA-32 architecture?

View solution

Q. What is working-set tuning?

View solution

View All MCQs on Reverse Engineering

Suggested Topics

Are you eager to expand your knowledge beyond Reverse Engineering? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

DBMS

Get a firm grasp on database systems with our DBMS MCQs. Explore relational...

Cyber Security

Understand the fundamentals of safeguarding digital assets with our Cyber Security...

Operating System

Dive deep into the core of computers with our Operating System MCQs. Learn about...

Big Data Computing

Enhance your understanding of Big Data Computing with our comprehensive MCQs. Explore...

Artificial Intelligence

Get started on the path to the future with our Artificial Intelligence MCQs. Covering...

Wireless and Mobile Communications

Get to grips with modern communication technologies with our Wireless and Mobile...

Human Computer Interaction

Enhance your knowledge of Human-Computer Interaction with our specialized MCQs....

Digital Communication

Master the basics of electronic communication with our Digital Communication MCQs....

HTML

Start your journey in web development with our HTML MCQs. Learn the building blocks...