* Preserving the underlying scalar execution dependencies as if the for-loop had been expanded as actual scalar instructions
(termed "preserving Program Order")
* Augments ("tags") existing instructions, providing Vectorisation "context" rather than adding new ones.
-* Does not modify or deviate from the underly scalar OpenPOWER ISA unless it provides significant performance or other advantage to do so in the Vector space (dropping XER.SO and OE=1 for example)
+* Does not modify or deviate from the underlying scalar OpenPOWER ISA unless it provides significant performance or other advantage to do so in the Vector space (dropping XER.SO and OE=1 for example)
Advantages of these design principles: