Assembly language is a simple way to tell a computer what to do using small storage spaces called registers.

Registers are basically like tiny boxes inside the processor that hold numbers while you work with them.

To add two numbers, you first put each number into its own box, then you add the contents of those two boxes together and put the result into a third box.

Imagine you want to add two numbers, 5 and 3, and store the result.

MOV R0, #5    ; Move the number 5 into register R0
MOV R1, #3    ; Move the number 3 into register R1
ADD R2, R0, R1 ; Add the values in R0 and R1, store the result in R2

What does this mean?

• MOV R0, #5: This instruction puts the number 5 into a small storage space called register R0.
• MOV R1, #3: This puts the number 3 into register R1.
• ADD R2, R0, R1: This adds the numbers in R0 and R1 (5 + 3) and saves the result (8) into register R2.

Think of registers like small boxes where you keep numbers while working on them. The instructions tell the computer to move numbers into boxes and then add the numbers from two boxes into a third box.

In short, these instructions show how a computer performs basic math step by step.

You move values into registers, add them, and save the result.

This process may be simple, but it is the foundation for everything a computer does. Learning this helps you understand how computers really work under the hood.

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