mmu.inc

Since we don’t use segmentation, this is how address translation works

31       21       11       0
+--------+--------+--------+
|   DIR  |  PAGE  | OFFSET |
+--------+--------+--------+
              |
              v
        Page Translation
              |
31            v            0
+--------------------------+
|     Pyshical address     |
+--------------------------+

+--------+--------+--------+             +--------+
|   DIR  |  PAGE  | OFFSET |-----+       |  Phys  |
+--------+--------+--------+     +------>|  addr  |
  |             |                        |        |
  |             +----+                   +--------+
  |   Page Dir       |             +---> Page Frame
  |  +---------+     |  +--------+ |
  |  |         |     |  |        | |
  +->| PDE     |-+   +->| PTE    |-+
     |         | |      |        |
     +---------+ |      +--------+
                 +----> Page Table