+-----------+-------------+--------------+------------+----------------------+
| 1 | imm | rd'!=0 | rs'!=0 | |
+-----------+-------------+--------------+------------+----------------------+
+
+
+experiment 2:
+
++-----------+-------------+------------+--------------+------------+----------------------+
+| VLtyp[11] | VLtyp[10:6] | VLtyp[5] | VLtyp[4:3] | VLtyp[2:0] | comment |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 0 | 00000 | 0 00 | 000 | no change to VL/MVL |
++-----------+-------------+---------------------------+------------+----------------------+
+| 0 | imm | 000 | | rs'!=0 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 0 | imm | rd'!=0 | | 000 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 0 | imm | rd'!=0 | | rs'!=0 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 1 | imm | 000 | | 000 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 1 | imm | 000 | | rs'!=0 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 1 | imm | rd'!=0 | | 000 | |
++-----------+-------------+------------+--------------+------------+----------------------+
+| 1 | imm | rd'!=0 | | rs'!=0 | |
++-----------+-------------+------------+--------------+------------+----------------------+