--- a/python/irmach.py	Sat Oct 12 09:56:23 2013 +0200
+++ b/python/irmach.py	Sat Nov 02 10:03:26 2013 +0100
@@ -8,6 +8,8 @@
 """
 
 import ir
+import target
+
 
 class Frame:
     """ 
@@ -23,22 +25,29 @@
     def __repr__(self):
         return 'Frame {}'.format(self.name)
 
-def makeIns(*args, **kwargs):
-    return AbstractInstruction(*args, **kwargs)
+    def lower_to(self, outs):
+        for im in self.instructions:
+            if isinstance(im.assem, target.Instruction):
+                outs.emit(im.assem)
+            else:
+                outs.emit(im.assem.fromim(im))
+
 
 class AbstractInstruction:
     """ 
         Abstract machine instruction class. This is a very simple
         abstraction of machine instructions.
     """
-    def __init__(self, cls, ops=(), src=(), dst=(), jumps=()):
+    def __init__(self, cls, ops=(), src=(), dst=(), jumps=(), others=(), ismove=False):
+        assert type(cls) is type or isinstance(cls, target.Instruction)
         self.assem = cls
-        self.ops = ops
+        self.ops = tuple(ops)
         self.src = tuple(src)
         self.dst = tuple(dst)
         self.jumps = tuple(jumps)
+        self.others = tuple(others)
         c = lambda s: tuple(map(type, s)) == (ir.Temp, )
-        self.ismove = c(src) and c(dst) and cls.lower().startswith('mov')
+        self.ismove = ismove
 
     def __repr__(self):
         return self.render()