| Register | Andes ISA | Harmonised RVP ISA |
| ------------------ | ------------------------- | ------------------- |
| v0 | Hardwired zero | Hardwired zero |
-| v1 | 32bit GPR or Vector[4xINT8 or 2xINT16] | Predicate masks |
+| v1 | 32bit GPR or Vector[4xINT8 or 2xINT16] | Predicate mask |
+| | | |
| v2 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[4xSINT8] |
| v3 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[4xSINT8] |
| v4 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[4xSINT8] |
| v27 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[2xUINT16] |
| v28 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[2xUINT16] |
| v29 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[2xUINT16] |
+| | | |
| v30 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[1xSINT32] |
| v31 | 32bit GPR or Vector[4xINT8 or 2xINT16] | 32bit GPR or Vector[1xSINT32] |