Gee, this is how gowin_unpack reconstructs a constraint file from a bitstream compiled with a vendor IDE :)
Never mind IOL7 --- it's a clock.
I was upset when I didn't see DRIVE attribute for R1C4, because the program should recognize all attributes, but it was smarter than me: with open collector DRIVE is out of the question :)
It wasn't me, it was the one-armed man!
Just kidding, but I don't remember working on an IP stack:)
I'm not worried about that: I know I'll get back to this project because my notes are literally in front of me on the wall, something like that:
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko