diff --git a/lib/arm/arm_machine.rb b/lib/arm/arm_machine.rb
index b81941b2..33e6515e 100644
--- a/lib/arm/arm_machine.rb
+++ b/lib/arm/arm_machine.rb
@@ -1,4 +1,4 @@
-require "vm/machine"
+require "vm/c_machine"
 require_relative "stack_instruction"
 require_relative "logic_instruction"
 require_relative "move_instruction"
@@ -7,7 +7,7 @@ require_relative "memory_instruction"
 require_relative "call_instruction"
 
 module Arm
-  class ArmMachine < Vm::Machine
+  class ArmMachine < Vm::CMachine
     
     # defines a method in the current class, with the name inst (first erg) 
     # the method instantiates an instruction of the given class which gets passed a single hash as arg
diff --git a/lib/core/kernel.rb b/lib/core/kernel.rb
index 080a27a3..2570f594 100644
--- a/lib/core/kernel.rb
+++ b/lib/core/kernel.rb
@@ -6,21 +6,21 @@ module Core
     module ClassMethods
       def main_start
         #TODO extract args into array of strings
-        Vm::Machine.instance.main_start
+        Vm::CMachine.instance.main_start
       end
       def main_exit
         # Machine.exit mov r7 , 0  + swi 0 
-        Vm::Machine.instance.main_exit
+        Vm::CMachine.instance.main_exit
       end
       def function_entry f_name
-        Vm::Machine.instance.function_entry f_name
+        Vm::CMachine.instance.function_entry f_name
       end
       def function_exit f_name
-        Vm::Machine.instance.function_exit f_name
+        Vm::CMachine.instance.function_exit f_name
       end
       def putstring
         # should unwrap from string to char*
-        Vm::Machine.instance.putstring 
+        Vm::CMachine.instance.putstring 
       end
     end
     
diff --git a/lib/crystal.rb b/lib/crystal.rb
index fd03b5ac..d007f2b6 100644
--- a/lib/crystal.rb
+++ b/lib/crystal.rb
@@ -4,6 +4,6 @@ require "elf/object_writer"
 require 'parser/crystal'
 require 'parser/transform'
 require "vm/context"
-require "vm/machine"
+require "vm/c_machine"
 require "vm/program"
 require "stream_reader"
\ No newline at end of file
diff --git a/lib/support/hash_attributes.rb b/lib/support/hash_attributes.rb
index 68c76716..92dfb0cf 100644
--- a/lib/support/hash_attributes.rb
+++ b/lib/support/hash_attributes.rb
@@ -8,17 +8,17 @@ module Support
         puts "NO -#{args.length} BLOCK #{block_given?}"
         super 
       else
-        name = name.to_s
+        sname = name.to_s
         if args.length == 1        #must be assignemnt for ir attr= val
-          if name.include? "="
+          if sname.include? "="
             #puts "setting :#{name.chop}:#{args[0]}"
-            return @attributes[name.chop.to_sym] = args[0]
+            return @attributes[sname.chop.to_sym] = args[0]
           else 
             super
           end
         else
           #puts "getting :#{name}:#{@attributes[name.to_sym]}"
-          return @attributes[name.to_sym]
+          return @attributes[sname.to_sym]
         end
       end
     end
diff --git a/lib/vm/block.rb b/lib/vm/block.rb
index 80bda66f..91179410 100644
--- a/lib/vm/block.rb
+++ b/lib/vm/block.rb
@@ -69,7 +69,7 @@ module Vm
     # (hopefully an instruction) added as code
     def method_missing(meth, *args, &block)
       if args.length == 1
-        add_code Machine.instance.send(meth , *args)
+        add_code CMachine.instance.send(meth , *args)
       else
         super
       end
diff --git a/lib/vm/machine.rb b/lib/vm/c_machine.rb
similarity index 96%
rename from lib/vm/machine.rb
rename to lib/vm/c_machine.rb
index 68715776..081ad2d6 100644
--- a/lib/vm/machine.rb
+++ b/lib/vm/c_machine.rb
@@ -1,6 +1,6 @@
 module Vm
 
-  # Our virtual machine has a number of registers of a given size and uses a stack
+  # Our virtual c-machine has a number of registers of a given size and uses a stack
   # So much so standard
   # But our machine is oo, meaning that the register contents is typed. 
   # Off course current hardware does not have that (a perceived issue), but for our machine we pretend.
@@ -22,7 +22,7 @@ module Vm
   # Instructions work with options, so you can pass anything in, and the only thing the functions does
   # is save you typing the clazz.new. It passes the function name as the :opcode
    
-  class Machine
+  class CMachine
   
     # hmm, not pretty but for now
     @@instance = nil
diff --git a/lib/vm/function_call.rb b/lib/vm/function_call.rb
index da621a34..ede7f7a4 100644
--- a/lib/vm/function_call.rb
+++ b/lib/vm/function_call.rb
@@ -12,6 +12,7 @@ module Vm
     attr_reader  :function , :args , :name
     
     def load_args into
+      raise args.inspect
       args.each_with_index do |arg , index|
         into.add_code arg.load("r#{index}".to_sym)
       end
diff --git a/lib/vm/program.rb b/lib/vm/program.rb
index 71713723..4be2bc9f 100644
--- a/lib/vm/program.rb
+++ b/lib/vm/program.rb
@@ -19,13 +19,13 @@ module Vm
   class Program < Block
     
     # Initialize with a string for cpu. Naming conventions are: for Machine XXX there exists a module XXX
-    #  with a XXXMachine in it that derives from Vm::Machine
+    #  with a XXXMachine in it that derives from Vm::CMachine
     def initialize machine = nil
       super("start")
       machine = RbConfig::CONFIG["host_cpu"] unless machine
       machine = "intel" if machine == "x86_64"
       machine = machine.capitalize
-      Machine.instance = eval("#{machine}::#{machine}Machine").new
+      CMachine.instance = eval("#{machine}::#{machine}Machine").new
       @context = Context.new(self)
       #global objects (data)
       @objects = []
diff --git a/test/test_runner.rb b/test/test_runner.rb
index 621e2685..2b2e70c1 100644
--- a/test/test_runner.rb
+++ b/test/test_runner.rb
@@ -26,11 +26,11 @@ class TestRunner < MiniTest::Test
     # file is a list of expressions, al but the last must be a function
     # and the last is wrapped as a main
     parts.each_with_index do |part,index|
-      puts "parsing #{index}=#{part.inspect}"
-      expr    = part.compile( program.context )
       if index = parts.length
+        expr    = part.compile( program.context , nil )
         program.main = expr
       else
+        expr    = part.compile( program.context , program.main )
         raise "should be function definition for now" unless expr.is_a? Function
         program.add_function expr
       end
diff --git a/test/test_small_program.rb b/test/test_small_program.rb
index 914340eb..56fb7f19 100644
--- a/test/test_small_program.rb
+++ b/test/test_small_program.rb
@@ -28,7 +28,7 @@ class TestSmallProg < MiniTest::Test
   end
 
   def test_hello
-    hello = Vm::StringLiteral.new "Hello Raisa\n"
+    hello = Vm::StringConstant.new "Hello Raisa\n"
     @program.add_object hello
     @program.main.instance_eval do 
       mov :left =>:r7, :right => 4     # 4 == write