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import pip_classes
import extract_ncl_routing
import parse_sdf
import sys
def get_equations(ncl):
signals, bels = extract_ncl_routing.parse_ncl(ncl)
wire_fanout = {} # wire, pipclass -> fanout
path_pip_classes = {} # (src, dest) -> [(wire, pipclass)]
for name, sig in sorted(signals.items()):
nd = extract_ncl_routing.net_to_dict(sig, bels)
drivers, loads, route = sig
if len(drivers) != 1:
continue
if nd is None:
continue
drv = drivers[0]
for load in loads:
path = []
if load not in nd:
continue
wire = nd[load]
skip = False
while wire != drv:
path.append(wire)
if wire not in nd:
skip = True
break
wire = nd[wire]
if skip:
continue
path.reverse()
path_pip_classes[drv, load] = []
for i in range(len(path) - 1):
pip_src = path[i]
pip_dst = path[i+1]
pip_class = pip_classes.get_pip_class(pip_src, pip_dst)
if pip_class is None:
skip = True
break
path_pip_classes[drv, load].append((pip_src, pip_class))
wire_fanout[pip_src, pip_class] = wire_fanout.get((pip_src, pip_class), 0) + 1
if skip:
del path_pip_classes[drv, load]
continue
return path_pip_classes, wire_fanout
def main():
path_pip_classes, wire_fanout = get_equations(sys.argv[1])
"""
for k, v in sorted(path_pip_classes.items()):
src, dst = k
pname = "({}.{}, {}.{})".format(src[0], src[1], dst[0], dst[1])
print("{} = {}".format(pname, " + ".join(x[1] for x in v)))
"""
pip_class_count = {}
for pips in path_pip_classes.values():
for pip in pips:
src, pip_class = pip
pip_class_count[pip_class] = pip_class_count.get(pip_class, 0) + 1
for pip_class, count in sorted(pip_class_count.items()):
print("{} = {}".format(pip_class, count))
if __name__ == "__main__":
main()
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