When `SVi` is 1-4 the REMAP Schedule for a given SVSHAPE may be
returned in `RT`. SVi=1 selects SVSHAPE0 current state,
through to SVi=4 selects SVSHAPE3.
+When `SVi` is 5, `SVSTATE.srcstep` is returned.
+When `SVi` is 6, `SVSTATE.dststep` is returned.
+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
(and move to the next state if `vf=1`)
before use some of the Indices may be arbitrarily altered as desired.
`sv.svstep` helps the programmer avoid having to manually recreate
Indices for certain
-types of common Loop patterns, and in its simplest form, without REMAP,
+types of common Loop patterns, and in its simplest form, without REMAP
+(SVi=5 or SVi=6),
is equivalent to the `iota` instruction found in other Vector ISAs*