all other Modes (Saturation, Fail-First, Predicate-Result,
Iteration/Reduction) are entirely optional. Implementation of Element-Width
Overrides is also optional.
+
+One of the important side-benefits of this SV Compliancy Level is that it
+brings Hardware-level support for Predication to the entire Scalar Power
+ISA, completely without
+modifying the Scalar Power ISA. The cost is that instructions are Prefixed
+to 64-bit.