| 4 | 5 | 19-20 | 21 | 22 23 | description |
| - | - | ----- | --- |---------|----------------- |
-|sz |SNZ| 0 0 | 0 | dz / | normal mode |
-|sz |SNZ| 0 0 | 1 | 0 RG | scalar reduce mode (mapreduce), SUBVL=1 |
-|sz |SNZ| 0 0 | 1 | 1 / | parallel reduce mode (mapreduce), SUBVL=1 |
-|sz |SNZ| 0 0 | 1 | SVM RG | subvector reduce mode, SUBVL>1 |
-|sz |SNZ| 0 1 | rsv | rsvd | reserved |
+|sz |SNZ| 0 RG | 0 | dz / | normal mode |
+|sz |SNZ| 0 RG | 1 | 0 / | scalar reduce mode (mapreduce), SUBVL=1 |
+|sz |SNZ| 0 RG | 1 | 1 / | parallel reduce mode (mapreduce), SUBVL=1 |
+|sz |SNZ| 0 RG | 1 | SVM / | subvector reduce mode, SUBVL>1 |
|sz |SNZ| 1 VLI | inv | CR-bit | Ffirst 3-bit mode |
|sz |SNZ| 1 VLI | inv | dz / | Ffirst 5-bit mode |