adplus-dvertising
frame-decoration

Question

Does the LEA instruction perform any actual memory accesses?

a.

Yes

b.

No

c.

May be Yes or No

d.

Can't say

Posted under Reverse Engineering

Answer: (b).No Explanation:Even though most disassemblers add the words DWORD PTR before the operands, LEA really can't distinguish between a pointer and an integer and never performs any actual memory accesses.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. Does the LEA instruction perform any actual memory accesses?
Add Comment

Similar Questions

Discover Related MCQs

Q. Which instructions are used to add and subtract integers on IA-32 processors?

View solution

Q. Why are LEA instructions used by compilers in some cases?

View solution

Q. How do computers deal with multiplication and division?

View solution

Q. What is the most efficient instruction to use when multiplying two variables?

View solution

Q. What do compilers usually do when the multiplier is a constant?

View solution

Q. What is the equivalent of multiplying by powers of 2 in computers?

View solution

Q. What is the latency of the SHL instruction?

View solution

Q. What is the most complex operation in integer arithmetic for computers?

View solution

Q. Which built-in instructions are relatively slow and have a high latency in computers?

View solution

Q. Why is using DIV usually bad for performance but good for reversers?

View solution

Q. What happens when a compiler has constant divisors?

View solution

Q. What is reciprocal multiplication?

View solution

Q. Why is multiplication preferred over division in computers?

View solution

Q. How can fixed-point arithmetic be used to represent fractions and real numbers?

View solution

Q. How is the reciprocal of a divisor used in reciprocal multiplication?

View solution

Q. What is the benefit of using reciprocal multiplication over division in computers?

View solution

Q. What is fixed-point arithmetic?

View solution

Q. How does fixed-point arithmetic represent fractional values in integers?

View solution

Q. What is the result of multiplying a 32-bit dividend by an integer reciprocal?

View solution

Q. How do compilers achieve greater accuracy with reciprocals when working with large dividends?

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!

Hadoop

Dive into the world of big data with our Hadoop MCQs. Cover key concepts including...

R Programming

Unleash the power of statistical computing with our R Programming MCQs. Topics cover...

Operating System

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

Embedded Systems

Dive into the world of specialized computing systems with our Embedded Systems MCQs....

Data Science

Discover the fascinating world of extracting insights from data with our Data Science...

SQL Server

Master Microsoft's database server with our SQL Server MCQs. Topics cover database...

Discrete Mathematics

Refine your mathematical skills essential for computer science with our Discrete...

Reverse Engineering

Strengthen your understanding of Reverse Engineering with our curated set of MCQs....

PHP

Venture into server-side scripting with our PHP MCQs. Cover everything from syntax...