--- a/python/ppci/ir.py	Tue Mar 25 19:36:51 2014 +0100
+++ b/python/ppci/ir.py	Fri Apr 11 15:47:50 2014 +0200
@@ -41,10 +41,10 @@
 
     Variables = property(get_variables)
 
-    def getFunctions(self):
+    def get_functions(self):
         return self.functions
 
-    Functions = property(getFunctions)
+    Functions = property(get_functions)
 
     def findFunction(self, name):
         for f in self.funcs:
@@ -194,6 +194,9 @@
 
 # Instructions:
 
+class Value:
+    pass
+
 class Expression:
     """ Base class for an expression """
     pass
@@ -227,6 +230,7 @@
 
     def __init__(self, value1, operation, value2):
         assert operation in Binop.ops
+        #assert type(value1) is type(value2)
         self.a = value1
         self.b = value2
         self.operation = operation