1 # From https://github.com/cliffordwolf/icestorm/blob/be0bca0/icefuzz/timings_hx8k.txt
3 # NB: Inputs/Outputs must be ordered alphabetically
4 # (with exceptions for carry in/out)
8 # (NB: carry chain input/output must be last
9 # input/output and have been moved there
10 # overriding the alphabetical ordering)