8. Special CPU registers: base &
limit
0xFFFF
0x2000
o Registers contain Limit
• Base: start of the process’s Process
memory partition partition
• Limit: length of the process’s Base
memory partition 0x9000
Address generation
o Physical address: location in OS
actual memory 0
o Logical address: location from Logical address: 0x1204
the process’s point of view Physical address:
o Physical address = base + 0x1204+0x9000 = 0xa204
logical address
o Logical address larger than limit
=> error
22. > NUMA architectures logically follow in scaling from symmetric
multiprocessing (SMP) architectures.
> Their commercial development came in work by (Unisys, Hewlett-
Packard, Group Bull, Silicon Graphics, IBM), EMC, Compaq, HP) during
the 1990s.
> Techniques developed by these companies later featured in a variety
of Unix-like operating systems, and somewhat in Windows NT.
>
>
>