inline 2 tick serial adder and ALU (maybe?)

[Legofreak]

I made something similar recently. It's a serial adder that runs at 2 ticks per bit. Its funny how it just consists of a full adder with the COUT directly into the CIN with a 2 tick delay. In other words, one of the AND gates just outputs right back onto one of its inputs. This setup also has a serial sender and receiver built around it using a separate trigger line with 8 bits of addition.