Understanding Function Call Stack Basics

Program execution can be understood as a series of function calls. Every user-mode process (where user-mode refers to CPU instruction set privilege ring 3, where applications run) corresponds to a call stack structure. When a function finishes executing, it automatically returns to the next instruction of the calling function (via the call inst ...

Posted on Tue, 19 May 2026 18:21:09 +0000 by cbj4074