CPUs
CPUs¶
Registers¶
| Moniker | Description |
|---|---|
| CS | Code Segment |
| DS | Data Segment |
| SS | Stack Segment |
| ES | Extra Segment |
| FS | General-purpose Segment |
| GS | General-purpose Segment |
| CR0 | Control Register Flags |
| CR1 | Reserved Control Register |
| CR2 | virtual address of a page fault |
| CR3 | Control Register with Physical Base Address |
| CR4 | Control Register Flags |
| CR8 | external interrupts priorities |
CR3¶
On x86, when paging is enabled (pretty much all the time in any modern operating system), CR3 points to the physical base address of the top level page table directory.