Vector register

[lekcyjna123]

After preparing high level schema of vector core I start the implementation with the implementation of very simple (and very not optimal) vector registers. Next step is to create a more "intelligent" implementation.

• Continuous vector register with tests
• Interlacing vector register with tests (in separate PR)
• Split changes in utils to separate merge request
• Add docs strings
• Add support for scalars (in separate PR)

[lekcyjna123]

I tried to implement inside VRRFragment a logic to make forwarding between reading methods e.g:

• Let assume that we have two ports (p1 and p2)
• We get request to read from v1 element on position x on both ports
• In simple implementation this will take two cycles (first cycle to read by p1 and second to read by p2)
• I tried to implement forwarding, so in case when the same element is read p1 read data from register and p2 copy read data from p1

Problem which I hit is that register is synchronous memory, so I need to have request - response pattern and I have to synchronize responses to have correct data forwarding from p1 to p2 (both p1 and p2 responses have to be called in the same cycle). I was able to write implication that p2 response is ready when p1 is run, but I don't see how to do that in the other way (I thought about some helper structures e.g buffers/fifos).

As for now I plan to drop this forwarding functionality and it will have to be handled either by unit reading register or there will be an additional cycle of delay. The other possibility was to leave only this implication, but this would be error prone due to timings dependency (both methods run in the same cycle).

[lekcyjna123]

Tomorrow I plan to add docstrings and merge it to development branch.