rephrased the retry, didnt find the bug though

lib/register/assembler.rb

@@ -58,6 +58,17 @@ module Register
     def write_as_string
       # must be same order as assemble
       begin
+        return try_write
+      rescue LinkException
+        puts "RELINK"
+        # knowing that we fix the problem, we hope to get away with retry.
+        return try_write
+      end
+    end
+
+    # private method to implement write_as_string. May throw link Exception in which
+    # case we try again. Once.
+    def try_write
       assemble
       all = @machine.objects.sort{|a,b| a.position <=> b.position}
       # debugging loop accesses all positions to force an error if it's not set
@@ -78,7 +89,6 @@ module Register
         @stream.write_uint8(0)
       end
 
-
       # then write the methods to file
       @machine.objects.each do |objekt|
         next unless objekt.is_a? Parfait::BinaryCode
@@ -89,11 +99,6 @@ module Register
         next if objekt.is_a? Parfait::BinaryCode
         write_any( objekt )
       end
-      rescue LinkException
-        puts "RELINK"
-        # knowing that we fix the problem, we hope to get away with retry.
-        retry
-      end
       puts "Assembled 0x#{stream_position.to_s(16)}/#{stream_position.to_s(16)} bytes"
       return @stream.string
     end