Assembly·Assembly essentials

Arithmetic

add, sub, imul and idiv perform integer arithmetic on registers.

Advanced 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • add src, dst.
  • sub src, dst.
  • Use cmp for comparison.

In plain English

add, sub, imul and idiv perform integer arithmetic on registers.

  • add src, dst.
  • sub src, dst.
  • Use cmp for comparison.
math.sASM
mov $10, %rax
add $5, %rax
sub $3, %rax
; rax now holds 12
Your turn

Explain it back

Easy

Answer from memory: Which instruction compares two values?

TEXT · starter
Your answer…
Check your understanding before moving on.
Knowledge checkQuestion 1

Which instruction compares two values?

Select an answer to continue
Study tools

Make it yours.

Keep a private note for this lesson, then turn the key ideas into flashcards you can revisit.

Sign in to save notes and flashcards.Both are private to your account and stay with your progress.
Sign in
Finished reading?

Lock in what you just learned.

Mark this lesson complete to save your place and move one step closer to the certificate.

Next: Branches and loops
Lesson 2 of 150 · 0% of course