| PO9?| 0 | x | xxxx | 0b10 | RESERVED (other) |
| PO9?| 0 | x | xxxx | 0b00 | RESERVED (other) |
+with additional potentially reserved areas (part of Scalar
+Unvectoriseable EXT200-247):
+
+| 0-5 | 6 | 7 | 8-31 | 32-3 | Description |
+|-----|---|---|-------|------|---------------------------|
+| PO9?| 1 | 0 | 0000 | 0b01 | RESERVED (other) |
+| PO9?| 1 | 0 | 0000 | 0b10 | RESERVED (other) |
+| PO9?| 1 | 0 | 0000 | 0b11 | RESERVED (other) |
+
Where:
* SVP64Single (`RESERVED3/4`) is *planned* for a future RFC