| 6 | 7 | 19-20 | 21 | 22 23 | description |
| - | - | ----- | --- |---------|----------------- |
-|sz |SNZ| 0 RG | 0 | dz / | normal mode |
+|sz |SNZ| 0 RG | 0 | dz 0 | normal mode |
+|sz |SNZ| 0 RG | 0 | dz 1 | Pack/Unpack mode |
|sz |SNZ| 0 RG | 1 | 0 / | scalar reduce mode (mapreduce), SUBVL=1 |
|zz |SNZ| 0 RG | 1 | 1 / | parallel reduce mode (mapreduce), SUBVL=1 |
|sz |SNZ| 0 RG | 1 | SVM / | subvector reduce mode, SUBVL>1 |