[SOLVED] C ext. asm swap

Question

Hey!
I am trying to do a simple swap by passing in variables by reference, it works, however, the end result is wrong.

I have done many tests (putting & and * everywhere) (the addresses swap, I have seen) but still no end solution.

How can the values be swapped by reference using this method?
https://code.sololearn.com/croGtFva8EKY/?ref=app

Answer 1

Dereferencing the pointers first inside asm seems to work
asm("" : "=r" (*a), "=r" (*b) : "1" (*a), "0" (*b));

Answer 2

Thanks!
I did it on my computer and it didnt work but whatever, it's solved :)