How to Use Assembly to Reduce the Size of Your Application

In assembly, is there a way to basically have something like a function, like some reusable piece of logic? Is that your saying? That's a subroutine. But if you wanted to pass arguments, you had to do all that yourself and return values. It was purely driven by needing to reduce the size of our application. Yeah. You were just, you had this many bytes and you needed to save it whenever you can't. People would go to all kinds of, I mean, this is like people would come up with things like self modifying code and stuff like that to cram things into this space. And you know, not particularly maintainable, but they did it because they