**Keywords**:
```
- Cray Supercomputing, Vectorisation, Zero-Overhead-Loop-Control,
- Scalable Vectors, Multi-Issue Out-of-Order, Sequential Programming Model
+ Cray Supercomputing, Vectorisation, Zero-Overhead-Loop-Control (ZOLC),
+ Scalable Vectors, Multi-Issue Out-of-Order, Sequential Programming Model,
+ Digital Signal Processing (DSP)
```
**Motivation**
-TODO
+Power ISA is synonymous with Supercomputing and the early Supercomputers
+(ETA-10, ILLIAC-IV, CDC200, Cray) had Vectorisation. It is therefore anomalous
+that Power ISA does not have Scalable Vectors, instead having the legacy
+"PackedSIMD" paradigm. Fortunately this presents
+the opportunity to modernise Power ISA learning from both past ISA features and
+mistakes placing it far above the top of Supercomputing for the next two decades
+and beyond.
**Notes and Observations**:
-1. TODO
+1. SVP64 is very much designed for ultra-light-weight Embedded use-cases all the
+ way up to moving the bar of Supercomputing orders of magnitude above its present
+ perception, whilst retaining at all times the Sequential Programming Execution
+ Model.
+2. This proposal is the **base** for further Extensions. These include
+ extending SVP64 onto the Scalar VSX instructions (with a **LONG TERM** view in 10+ years
+ to deprecating the PackedSIMD aspects of VSX), to be discussed at a later
+ time, the potential for extending VSX registers to 128 or beyond, and Arithmetic
+ operations to a runtime-selectable choice of 128-bit, 256-bit, 512-bit or 1024-bit.
+3. Massive reductions in instruction count of between 2x and 20x have been demonstrated
+ with SVP64, which is far beyond anything ever achieved by any *general-purpose*
+ ISA Extension added to any ISA in the history of Computing. Normal reductions
+ expected are of the order of 5 to 10% being considered a highly worthwhile exercise
+ to pursue inclusion. not fractions of former sizes.
+4. Other potential extensions include work inspired by EXTRA-V and Eth-Zurich "Snitch"
+ to reduce CPU workload by 95% in the case of EXTRA-V and power consumption by
+ 85% in the case of Snitch. Addition massive reductions from ZOLC Research are
+ also anticipated.
**Changes**