ISAs are provided: VSPLAT, VSELECT, VINSERT, VCOMPRESS, VEXPAND.
The only one missing from the list here, because it is non-sequential,
-is VGATHER: moving registers by specifying a vector of register indices
+is VGATHER (and VSCATTER): moving registers by specifying a vector of register indices
(`regs[rd] = regs[regs[rs]]` in a loop). This one is tricky because it
typically does not exist in standard scalar ISAs. If it did it would
-be called [[sv/mv.x]]. Once Vectorised, it's a VGATHER.
+be called [[sv/mv.x]]. Once Vectorised, it's a VGATHER/VSCATTER.
# CR predicate result analysis