Bits | Meaning when set |
---|---|
0-7 | 0 (reason code) |
8 | Physical page number provided |
9 | Logical address provided |
10 | Physical address provided |
11 | Return physical page number (if bit 8 clear) |
12 | Return logical address (if bit 9 clear) |
13 | Return physical address (if bit 10 clear) |
14-15 | Cacheability control: |
0,1 = No change | |
2 = Disable cacheing on all specified pages | |
3 = Enable cacheing on all specified pages | |
16-31 | Reserved, must be clear |
These flags are specific to OS_Memory 0.