| Field Name | Field bits | Description |
|------------|------------|----------------------------------------|
-| Rdest\_EXTRA2 | `10:11` | extends Rdest (R\*\_EXTRA2 Encoding) |
+| Rdest\_EXTRA2 | `10:11` | extends Rdest (R\*\_EXTRA2 Encoding) |
| Rsrc1\_EXTRA2 | `12:13` | extends Rsrc1 (R\*\_EXTRA2 Encoding) |
| Rsrc2\_EXTRA2 | `14:15` | extends Rsrc2 (R\*\_EXTRA2 Encoding) |
| Rsrc3\_EXTRA2 | `16:17` | extends Rsrc3 (R\*\_EXTRA2 Encoding) |
-| reserved | `18` | reserved |
+| EXTRA2_MODE | `18` | used by `msubed` and `madded` for RS |
## RM-1P-2S1D