diff --git a/lib/arm/passes/get_implementation.rb b/lib/arm/passes/get_implementation.rb
index fb065789..a36067eb 100644
--- a/lib/arm/passes/get_implementation.rb
+++ b/lib/arm/passes/get_implementation.rb
@@ -4,7 +4,7 @@ module Arm
     def run block
       block.codes.dup.each do |code|
         next unless code.is_a? Register::GetSlot
-        load = ArmMachine.ldr( code.value ,  code.reference , code.index )
+        load = ArmMachine.ldr( code.register ,  code.array , code.index )
         block.replace(code , load )
       end
     end
diff --git a/lib/arm/passes/set_implementation.rb b/lib/arm/passes/set_implementation.rb
index fca646c2..163a8e4e 100644
--- a/lib/arm/passes/set_implementation.rb
+++ b/lib/arm/passes/set_implementation.rb
@@ -4,7 +4,7 @@ module Arm
     def run block
       block.codes.dup.each do |code|
         next unless code.is_a? Register::SetSlot
-        store = ArmMachine.str( code.value ,  code.reference , code.index )
+        store = ArmMachine.str( code.register ,  code.array , code.index )
         block.replace(code , store )
       end
     end
diff --git a/lib/arm/passes/syscall_implementation.rb b/lib/arm/passes/syscall_implementation.rb
new file mode 100644
index 00000000..854af86c
--- /dev/null
+++ b/lib/arm/passes/syscall_implementation.rb
@@ -0,0 +1,16 @@
+module Arm
+
+  class SyscallImplementation
+    def run block
+      block.codes.dup.each do |code|
+        next unless code.is_a? Register::Syscall
+        new_codes = []
+        load = ArmMachine.ldr( :r1 ,  code.constant )
+
+        store = ArmMachine.str( code.register ,  code.array , code.index )
+        block.replace(code , new_codes )
+      end
+    end
+  end
+  Virtual.machine.add_pass "Arm::SetImplementation"
+end
diff --git a/lib/register/builtin/kernel.rb b/lib/register/builtin/kernel.rb
index 69858853..a78febea 100644
--- a/lib/register/builtin/kernel.rb
+++ b/lib/register/builtin/kernel.rb
@@ -18,8 +18,6 @@ module Builtin
       def putstring context
         function = Virtual::CompiledMethodInfo.create_method(:Kernel , :putstring , [] )
         emit_syscall( function , :putstring )
-        ret = Virtual::RegisterMachine.instance.write_stdout(function)
-        function.set_return ret
         function
       end
       def exit context
@@ -51,22 +49,23 @@ module Builtin
         space_tmp = Register::RegisterReference.tmp_reg
         ind = Parfait::Space.object_space.get_layout().index_of( :syscall_message )
         raise "index not found for :syscall_message" unless ind
-        function.info.add_code LoadConstant.new( space_tmp , Parfait::Space.object_space )
-        function.info.add_code << SetSlot.new( Virtual::Slot::MESSAGE_REGISTER , space_tmp , ind)
+        function.info.add_code Register::LoadConstant.new( space_tmp , Parfait::Space.object_space )
+        function.info.add_code Register::SetSlot.new( Virtual::Slot::MESSAGE_REGISTER , space_tmp , ind)
       end
       def restore_message(function)
         # get the sys return out of the way
         return_tmp = Register::RegisterReference.tmp_reg
         # load the space into the base register
-        function.info.add_code RegisterTransfer.new( Virtual::Slot::MESSAGE_REGISTER , return_tmp )
+        function.info.add_code Register::RegisterTransfer.new( Virtual::Slot::MESSAGE_REGISTER , return_tmp )
+        slot = Virtual::Slot
         # find the stored message
         ind = Parfait::Space.object_space.get_layout().index_of( :syscall_message )
         raise "index not found for #{kind}.#{kind.class}" unless ind
         # and load it into the base RegisterMachine
-        function.info.add_code GetSlot.new( Virtual::Slot::MESSAGE_REGISTER , ind , Virtual::Slot::MESSAGE_REGISTER )
+        function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , ind , slot::MESSAGE_REGISTER )
         # and "unroll" self and frame
-        function.info.add_code GetSlot.new( slot::MESSAGE_REGISTER , Virtual::SELF_INDEX, slot::SELF_REGISTER )
-        function.info.add_code GetSlot.new( slot::MESSAGE_REGISTER , Virtual::FRAME_INDEX, slot::FRAME_REGISTER )
+        function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , Virtual::SELF_INDEX, slot::SELF_REGISTER )
+        function.info.add_code Register::GetSlot.new( slot::MESSAGE_REGISTER , Virtual::FRAME_INDEX, slot::FRAME_REGISTER )
       end
     end
     extend ClassMethods
diff --git a/lib/virtual/boot.rb b/lib/virtual/boot.rb
index 6f02e00b..2da33f95 100644
--- a/lib/virtual/boot.rb
+++ b/lib/virtual/boot.rb
@@ -28,7 +28,7 @@ module Virtual
                   :Message => [],
                   :MetaClass => [],
                   :BinaryCode => [],
-                  :Space => [:classes ,:frames ,:messages ,:next_message ,:next_frame],
+                  :Space => [:classes ,:frames ,:messages ,:next_message ,:next_frame, :syscall_message],
                   :Frame => [:locals , :tmps ],
                   :Layout => [:object_class] ,
                   :Class => [:object_layout ],