Some more experiments with neural nets

[jonkr]

Hopefully my description is clear. This should be equivalent, enable for more KPM cache entries (improve the hit rate) and also be somewhat faster given a KPM cache hit as you only have to perform a 480x16 matrix vector product.

I see what you're saying, and it all sounds correct. Doing it as a concatenation seemed easier with the way my code is set up, but when I have time and if my net structure is still similar, I will try that out as optimization.