Every paging structure is 4096 Bytes in size and comprises a number of individual entries. With 32-bit paging,
each entry is 32 bits (4 bytes); there are thus 1024 entries in each structure. With PAE paging and IA-32e paging,
each entry is 64 bits (8 bytes); there are thus 512 entries in each structure. (PAE paging includes one exception, a
paging structure that is 32 bytes in size, containing 4 64-bit entries.)