Part 4 of the Smart FPGA Nic, dealing with the OrderBook has been published.
Go here to see more:
https://fpganow.com/index.php/part-4-order-book/
Related source code:
https://github.com/fpganow/arty_bats/tree/main/labview/arty/orderbook
As I make updates to the code, mainly to make it prettier and easier for others to follow, I will make new a post for each change detailing all changes.