diff --git a/lib/risc/interpreter.rb b/lib/risc/interpreter.rb
index 5c258841..6a0b08ce 100644
--- a/lib/risc/interpreter.rb
+++ b/lib/risc/interpreter.rb
@@ -48,7 +48,7 @@ module Risc
     def set_pc( pos )
       raise "Not int #{pos}" unless pos.is_a? Numeric
       position = Position.at(pos)
-      log.debug "Setting Position #{pos}"
+      log.debug "Setting Position #{position}"
       if position.is_a?(Position::CodePosition)
         return set_pc(position.at + 12)
       end
diff --git a/lib/risc/machine.rb b/lib/risc/machine.rb
index 9e43479e..77a4fc9b 100644
--- a/lib/risc/machine.rb
+++ b/lib/risc/machine.rb
@@ -90,6 +90,7 @@ module Risc
         before = at
         Position.set(objekt,at)
         at += objekt.padded_length
+        log.debug "PADDED #{objekt.padded_length}"
         log.debug "Object #{objekt.class}:#{before.to_s(16)} len: #{(at - before).to_s(16)}"
       end
       at
diff --git a/lib/risc/position.rb b/lib/risc/position.rb
index 408b1b01..1c760bdb 100644
--- a/lib/risc/position.rb
+++ b/lib/risc/position.rb
@@ -15,6 +15,9 @@ module Risc
   # entails to affected objects.
 
   module Position
+    include Util::Logging
+    log_level :debug
+
     @positions = {}
 
     def self.positions
@@ -39,7 +42,7 @@ module Risc
       if pos == nil
         str = "position accessed but not set, "
         str += "0x#{object.object_id.to_s(16)}\n"
-        str += "for #{object.class} byte_length #{object.byte_length if object.respond_to?(:byte_length)} for #{object.inspect[0...130]}"
+        str += "for #{object.class} byte_length #{object.byte_length if object.respond_to?(:byte_length)} for #{object.to_s[0...130]}"
         raise str
       end
       pos
@@ -55,7 +58,7 @@ module Risc
     def self.set( object , pos , extra = nil)
       # resetting of position used to be error, but since relink and dynamic instruction size it is ok.
       # in measures (of 32)
-      #puts "Setting #{pos} for #{self.class}"
+      log.debug "Setting #{pos} for #{object.class}-#{object}" if pos < 3000
       old = Position.positions[object]
       if old != nil
         old.reset_to(pos)
@@ -64,6 +67,7 @@ module Risc
       position = for_at( object , pos , extra)
       self.positions[object] = position
       position.init(pos)
+      log.debug "Set #{pos} for #{position.class}" if pos < 3000
       position
     end
 
diff --git a/lib/risc/position/object_position.rb b/lib/risc/position/object_position.rb
index 61613af3..5ce88155 100644
--- a/lib/risc/position/object_position.rb
+++ b/lib/risc/position/object_position.rb
@@ -5,6 +5,7 @@ module Risc
 
       def initialize( at , object)
         @at = at
+        @object = object
         raise "not int #{self}-#{at}" unless @at.is_a?(Integer)
       end
 
diff --git a/lib/util/logger.rb b/lib/util/logger.rb
index 1514a872..9a85bd77 100644
--- a/lib/util/logger.rb
+++ b/lib/util/logger.rb
@@ -458,7 +458,7 @@ module Util
     # Default formatter for log messages
     class Formatter
       def call(severity, time, progname, msg)
-        "#{severity} #{progname} #{time.strftime("%M-%S-%L")} #{progname}::#{msg2str(msg)}\n"
+        "#{severity} #{progname} #{time.strftime("%M-%S-%L")}::#{msg2str(msg)}\n"
       end
 
     private
diff --git a/test/support/risc_interpreter.rb b/test/support/risc_interpreter.rb
index aaad2af2..951d2807 100644
--- a/test/support/risc_interpreter.rb
+++ b/test/support/risc_interpreter.rb
@@ -10,9 +10,8 @@ module Risc
       Risc.machine.boot
       do_clean_compile
       Vool::VoolCompiler.ruby_to_binary( @string_input , :interpreter)
-      Collector.collect_space
       @interpreter = Interpreter.new
-      @interpreter.start Risc.machine.risc_init
+      @interpreter.start_machine
     end
     alias :do_setup :setup