EDIF backend not recognising my hadder edif module about yosys HOT 6 CLOSED

Ok on closer inspection it looks like the hadder module is referenced on line 75 (cellref hadder), but the actual cell is
defined below it.

Looks like the deepest parts of the hierarchy need to be declared at the top.

from yosys.

Confirmed, if I edit the edif file manually to put the hadder cell above the adder cell, then Xilinx accepts it.
I took a quick look at how the edif backend works, but still trying to work it out. :)

from yosys.

Awesome, the ripple carry adder works on zedboard :)

from yosys.

ack. I'll add topological sorting to the edif backend.

from yosys.

I just pushed commit cd0fe7d which contains topological sorting in edif backed.

from yosys.

Cheers :)

from yosys.