diff --git a/lib/elf/object_writer.rb b/lib/elf/object_writer.rb
index f3e03b03..cb8f0e4a 100644
--- a/lib/elf/object_writer.rb
+++ b/lib/elf/object_writer.rb
@@ -21,10 +21,10 @@ module Elf
       set_text assembler.write_as_string
 
       # for debug add labels for labels
-      Parfait.object_space.types.values.each do |type|
+      Parfait.object_space.each_type do |type|
         type.methods.each do |f|
           f.instructions.each_label do |label|
-            add_symbol "#{clazz.name}::#{f.name}:#{label.name}" , label.position
+            add_symbol "#{type.name}::#{f.name}:#{label.name}" , label.position
           end
         end
       end
diff --git a/lib/register/assembler.rb b/lib/register/assembler.rb
index 0b6f702f..4def3ffb 100644
--- a/lib/register/assembler.rb
+++ b/lib/register/assembler.rb
@@ -11,7 +11,7 @@ module Register
   class Assembler
     include Padding
     include Logging
-    log_level :debug
+    log_level :info
 
     MARKER = 0xA51AF00D
 
@@ -194,7 +194,7 @@ module Register
 
     def write_object_indexed(object)
       written = 0
-      if( object.is_a? Parfait::Indexed)
+      if( object.is_a? Parfait::List)
         object.each do |inst|
           write_ref_for(inst)
           written += 4
diff --git a/lib/register/machine.rb b/lib/register/machine.rb
index 33453235..3296beae 100644
--- a/lib/register/machine.rb
+++ b/lib/register/machine.rb
@@ -14,7 +14,7 @@ module Register
   class Machine
     include Collector
     include Logging
-    log_level :debug
+    log_level :info
 
     def initialize
       @objects = {}
diff --git a/test/elf/test_hello.rb b/test/elf/test_hello.rb
index 34e48f37..9f626bd7 100644
--- a/test/elf/test_hello.rb
+++ b/test/elf/test_hello.rb
@@ -6,7 +6,7 @@ class HelloTest < MiniTest::Test
   def check
     machine = Register.machine.boot
     Typed.compile( @input )
-    machine.collect
+    machine.collect_space
     machine.translate_arm
     writer = Elf::ObjectWriter.new
     writer.save "test/hello.o"
@@ -15,6 +15,6 @@ class HelloTest < MiniTest::Test
   def test_string_put
     @input = s(:statements, s(:return, s(:call, s(:name, :putstring), s(:arguments),
                   s(:receiver, s(:string, "Hello again\\n")))))
-#    check
+    check
   end
 end
diff --git a/test/elf/test_zero.rb b/test/elf/test_zero.rb
index a2769974..62453f90 100644
--- a/test/elf/test_zero.rb
+++ b/test/elf/test_zero.rb
@@ -2,18 +2,32 @@ require_relative "../helper"
 
 class TestZeroCode < MiniTest::Test
 
-  def test_string_put
-    machine = Register.machine.boot
-    space = Parfait.object_space
-    space.each_type do | type |
+  def setup
+    @machine = Register.machine.boot
+    @space = Parfait.object_space
+    @space.each_type do | type |
       type.method_names.each do |method|
-        type.remove_method(method)
+        type.remove_method(method) unless keeper(method)
       end
     end
-    assert_equal 0 , space.collect_methods.length
-    machine.collect_space
-    machine.translate_arm
-#    writer = Elf::ObjectWriter.new
-#    writer.save "test/zero.o"
+    @machine.collect_space
+  end
+  def keeper name
+    name == :main or name == :__init__
+  end
+
+  def test_empty_translate
+    assert_equal 2 , @space.collect_methods.length
+    @machine.translate_arm
+    writer = Elf::ObjectWriter.new
+    writer.save "test/zero.o"
+  end
+
+  def test_methods_match_objects
+    assert_equal 2 , @space.collect_methods.length
+    @machine.objects.each do |id , objekt|
+      next unless objekt.is_a? Parfait::TypedMethod
+      assert keeper(objekt.name) ,  "CODE1 #{objekt.name}"
+    end
   end
 end