Code generation is like asking a robot to build a toy for you. You give the robot instructions on how to build the toy and it follows those instructions to create the toy for you.
This is similar to how a compiler works. Instead of a robot, a compiler is a computer program that takes in code written by a programmer and turns it into machine code that the computer can understand and execute.
The code that the programmer writes is written in a high-level language that is easier for humans to understand, but not as easy for a computer to understand. The compiler takes the high-level code and turns it into low-level code that the computer can run, like turning a recipe into a meal.
The compiler does this by breaking down the high-level code into smaller, simpler parts and translating those parts into machine code. Once all the parts are translated, the compiler puts them back together into a complete program that the computer can execute.
So, code generation is like a robot building a toy, but instead of building a toy, it's turning high-level code into machine code for a computer to understand and execute.