to introduce into compilers, because all looping, as far as programs
is concerned, remains expressed as *Scalar assembler*.[^autovec]
Whilst Mitch Alsup's
-VVM advocates auto-vectorisation and is limited in its ability to call
+VVM biggest strength is its hardware-level auto-vectorisation
+but is limited in its ability to call
functions, Simple-V's Vertical-First provides explicit control over the
parallelism ("hphint")[^hphint] and also allows for full state to be stored/restored
-(SVLR combined with LR), permitting full function calls to be made.
+(SVLR combined with LR), permitting full function calls to be made
+from inside Vertical-First Loops, and potentially allows arbitrarily-depth
+nested VF Loops.
Simple-V Vertical-First Looping requires an explicit instruction to
move `SVSTATE` regfile offsets forward: `svstep`. An early version of
Vectorised
Branch-Conditional attempted to merge the functionality of `svstep`
-into `sv.bc`: it became CISC-like and was reverted.
+into `sv.bc`: it became CISC-like in its complexity and was quickly reverted.
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# Simple-V REMAP subsystem