Olof Kindgren 42ac1e5e4d Store CSR in RF RAM ...

Since FPGA uses fixed-size RAM, it's better in most cases to store
the CSR in unused memory positions in that RAM.

Since the decoding is made more complex, the old register file
implementation is kept around since that is more efficient when we
don't want CSR and potentially when the FPGA support hardware
shift registers.

2019-06-07 19:39:18 +02:00

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