Explain how pagination and address translation work

Author: SamyPesse

Chapter-8/README.md

@@ -16,3 +16,12 @@ In a paged system, each process may execute in its own 4gb area of memory, witho
 
 ![Processes memories](./processes.png)
 
+#### How does it work?
+
+The translation of a linear address to a physical address is done in multiple steps:
+
+1. The processor use the registry `CR3` to know the physical address of the pages directory.
+2. The first 10 bytes of the linear address represent an offset (between 0 and 1023), pointing to an entry in the pages directory. This entry contains the physical address of a pages table.
+3. the next 10 bytes of the linear address represent an offset, pointing to an entry in the pages table. This entry is pointing to a 4ko page.
+4. The last 12 bytes of the linear address represent an offset (between 0 and 4095), which indicates the position in the 4ko page.
+