X86 memory models

Okay, so let's imagine you have a toy box with lots of different toys inside. And let's also imagine that you have a friend who wants to play with some of your toys, but you don't want them to break or mess them up.

In computer language, the toy box is the computer's memory, and the toys inside it are pieces of data or instructions that the computer uses to do things. The friend is actually the computer's processor, which is in charge of taking those toys out of the memory and using them to run programs.

Now, just like you might want to make sure your friend doesn't mess up your toys, the computer also has to make sure that the processor doesn't mess up any data or instructions in its memory. This is where the x86 memory model comes in.

The x86 memory model is like a set of rules that the computer and processor follow to make sure that they don't accidentally use the same toy (or piece of data) at the same time. It's kind of like saying "I get to play with this toy first, and then you can play with it after I'm done."

But sometimes, the computer and processor need to work on the same toy at the same time. This is called concurrency, and it can be tricky to manage because if they both try to change the same toy at the same time, things can get messy.

To handle concurrency, the x86 memory model has different levels of "protection" for different parts of the memory. It's like having a special toy box within your toy box that only you get to play with, and a different one that your friend gets to play with. This way, you can both play with your toys without messing up each other's.

Overall, the x86 memory model is like a set of rules that the computer and processor use to make sure they don't mess up the memory while they're working on different tasks. It's all about sharing nicely and not getting in each other's way!