--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/ir/instruction.py	Fri Feb 22 10:33:48 2013 +0100
@@ -0,0 +1,32 @@
+
+from .value import Value
+
+def Enum(**enums):
+   return type('Enum', (), enums)
+
+class Instruction(Value):
+   """ Base class for all instructions. """
+   pass
+
+class CallInstruction(Instruction):
+   def __init__(self, callee, arguments):
+      super().__init__()
+      self.callee = callee
+      self.arguments = arguments
+
+BinOps = Enum(Add=1, Sub=2, Mul=3)
+
+class BinaryOperator(Instruction):
+   def __init__(self, operation, value1, value2):
+      assert value1
+      assert value2
+      print('operation is in binops:', operation in BinOps)
+      # Check types of the two operands:
+      self.value1 = value1
+      self.value2 = value2
+      self.operation = operation
+
+class LoadInstruction(Instruction):
+   def __init__(self, ptr, name, insertBefore):
+      self.setName(name)
+