2014 when we moved from TG68.C to Apollo core, it was called as Phoenix Core mini:
https://vimeo.com/114893828Gunnar spent a lot of time and effort to shrink full Apollo core to the Vampire 1 FPGA. Many features must be left out due to lack of space on V1 FPGA. Later with V2 we actually had a few FPU instruction, but they made more harm than good.
