I'm not buying the copyright line. If documenting a product gave you infinite monopoly power, no one would bother patenting anything. They would just copyright everything. The description of the Amiga is also just a list of facts. You cannot copyright a list of facts. You can copyright the presentation, but not the data itself.
Now, I don't know Verilog, but it seems very unlikely that the code is laid out in the same order as the book. It is also very unlikely that it is truly a one for one translation.
For you to be correct, it would also have to be true that the use of reference materials for any other project, FPGA or not, is a copyright violation. I'm just not buying it.
How about some links to actual rulings on the use of reference works being copyright violations, because right now you are sounding an awful lot like a troll.