`svstep` performs explicit stepping of the Vector for-loop,
and it can also be used to enquire about the current state
-of the REMAP indices.
+of the REMAP indices and SVSTATE.
# Format
As this is a Single-Predicated (1P) instruction, predication may be applied
to skip (or zero) elements.
-* Vertical-First Mode will return the current index
+* Vertical-First Mode will return the requested index
(and move to the next state if `vf=1`)
* Horizontal-First Mode can be used to return all indices,
i.e. walks through all possible states.