2.2.3. Special-Purpose Priority Mask Register
Use the Special-Purpose Priority Mask Register for priority
boosting.
Figure 2.5 shows
the bit assignments of the Special-Purpose Priority Mask Register.
Table 2.4 lists
the bit assignments of the Special-Purpose Priority Mask Register.
Table 2.4. Special-Purpose Priority Mask Register bit assignments
| Field | Name | Function |
|---|
| [31:1] | - | Reserved |
| [0] | PRIMASK | When set, raises execution priority to 0 |
You can access the Special-Purpose Priority Mask Register
using the MSR and MRS instructions. You
can also use the CPS instruction to set or clear PRIMASK.
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