# How to Swap Values in Registers in x86 Assembly Language

In this article, we show how to swap values in registers in x86 assembly language.

With the xchg operation, we can swap values in registers.

For example, if register AX has a value of 4 and register BX has a value of 8, by using the xchg operation, we can interchange the values in the registers so that register AX has a value of 8 and register BX has a value of 4.

So below is code that uses the xchg operation so that we can interchange values in regiters AX and BX.

So we move the value of 4 into register ax.

We then move the value of 8 into register bx.

So register ax has 4 and register bx has 8.

We then perform the xchg operation on the registers, ax and bx.

Now the values have been interchanged, so register ax has 8 and register bx has 4.

So this is just a quick way to exchange values in registers if that needs to be done.

So this is how to swap values in registers in x86 assembly language.

Related Resources