[P]

1. P2V
2. P2V_WO
3. PCINT
4. PDX
5. PDXSHIFT
6. PERIODIC
7. PGADDR
8. PGROUNDDOWN
9. PGROUNDUP
10. PGSIZE
11. PHYSTOP
12. PIPE
13. PIPESIZE
14. PTE_ADDR
15. PTE_FLAGS
16. PTE_P
17. PTE_PS
18. PTE_U
19. PTE_W
20. PTX
21. PTXSHIFT