* **Data-dependent fail-first**.
useful to truncate VL based on
analysis of a Condition Register result bit.
-* **Scalar and parallel reduction**.
+* **Reduction**.
Reduction is useful
for analysing a Vector of Condition Register Fields
and reducing it to one
| - | - |-------| --- |---------|----------------- |
|sz |SNZ| 0 RG | 0 | dz / | simple 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 |
|zz |SNZ| 0 RG | 1 | SVM 0 | subvector reduce mode, SUBVL>1 |
|zz |SNZ| 0 RG | 1 | SVM 1 | Pack/Unpack mode, SUBVL>1 |
|zz |SNZ| 1 VLI | inv | CR-bit | Ffirst 3-bit mode |