* core.py: <https://git.libre-soc.org/?p=soc.git;a=blob;f=src/soc/simple/core.py;hb=HEAD>
* priority picker: <https://git.libre-soc.org/?p=nmutil.git;a=blob;f=src/nmutil/picker.py;hb=HEAD>
* all function units: <https://git.libre-soc.org/?p=soc.git;a=blob;f=src/soc/fu/compunits/compunits.py;hb=HEAD>
+* ReservationStations2 <https://git.libre-soc.org/?p=nmutil.git;a=blob;f=src/nmutil/concurrentunit.py;hb=HEAD>
For a GPU, the FP and Integer registers need to be a massive 128 x 64-bit.