Added initial code for determining the logical effort delay of the wordline.

compiler/characterizer/logical_effort.py

@@ -0,0 +1,16 @@
+import debug
+from tech import drc, parameter, spice
+
+class logical_effort():
+    """
+    Class to support the values behind logical effort. Useful for storing the different components
+    such as logical effort, electrical effort, and parasitic delay.
+    """
+    beta = parameter["beta"]
+    min_inv_cin = 1+beta
+    def __init__(self, size, cin, cout, parasitic):
+        self.cin = cin
+        self.cout = cout
+        self.logical_effort = (self.cin/size)/logical_effort.min_inv_cin
+        self.eletrical_effort = self.cout/self.cin
+        self.parasitic = parasitic