--- a/python/ppci/ir.py	Sun Mar 09 18:49:10 2014 +0100
+++ b/python/ppci/ir.py	Thu Mar 13 18:59:06 2014 +0100
@@ -214,7 +214,7 @@
         self.arguments = arguments
 
     def __repr__(self):
-        args = ', '.join([str(arg) for arg in self.arguments])
+        args = ', '.join(str(arg) for arg in self.arguments)
         return '{}({})'.format(self.f, args)
 
 
@@ -309,6 +309,15 @@
         return '[{}]'.format(self.e)
 
 
+class Addr(Expression):
+    """ Address of label """
+    def __init__(self, e):
+        self.e = e
+
+    def __repr__(self):
+        return '&{}'.format(self.e)
+
+
 class Statement:
     """ Base class for all instructions. """
     @property