Beginner
Assembly Language
Q25 / 100
What does XOR EAX, EAX do?
Correct! Well done.
Incorrect.
The correct answer is B) Sets EAX to zero — the fastest way to zero a register
B
Correct Answer
Sets EAX to zero — the fastest way to zero a register
Explanation
XOR of any value with itself is 0. XOR EAX, EAX is preferred over MOV EAX, 0 because it produces a shorter encoding and clears flags.
Progress
25/100