fibinacci actually compiles, doesnt mean it works though

lib/ast/call_site_expression.rb

@@ -11,10 +11,24 @@ module Ast
       function = context.program.get_or_create_function(name)
       raise "Forward declaration not implemented (#{name}) #{inspect}" if function == nil
       call = Vm::CallSite.new( name ,  params  , function)
+      save_locals context , into
       call.load_args into
       call.do_call into
+      resore_locals context , into
     end
-    
+
+    def save_locals context , into
+      into.instance_eval do 
+        push [:r0, :r1 , :r2]
+      end
+    end
+
+    def resore_locals context , into
+      into.instance_eval do 
+        pop [:r0, :r1 , :r2]
+      end
+    end
+
     def inspect
       self.class.name + ".new(" + name.inspect + ", ["+ 
         args.collect{|m| m.inspect }.join( ",") +"] )"