The FPU now works with EMUTOS and SFP004 libraries. It produces an 8x performance improvement compared to the SOFT-FP code. This is using an unmodified set of utilities from 1991.  I obtained the utilities from here: https://www.atari-forum.com/viewtopic.php?p=478222#p478222

The  test board is an Alinx AXU3EG using musashi on the ARM PS communicating via AXI to the PL hardware FPGA FPU

The next stage is to build a hardware PCB using a 68sec000 for true validation. PCBWAY have kindly sponsored this hardware due to it's unique design. I will provide more details when my board arrives from them.