fold last of the virtual into register

test/register/test_positioning.rb

@@ -0,0 +1,24 @@
+require_relative "../helper"
+
+class TestPositioning < MiniTest::Test
+  def setup
+    Register.machine.boot unless Register.machine.booted
+  end
+  def test_list1
+    list = Register.new_list([1])
+    list.set_layout( Parfait::Layout.new Object)
+    assert_equal 32 , list.word_length
+  end
+  def test_list5
+    list = Register.new_list([1,2,3,4,5])
+    list.set_layout( Parfait::Layout.new Object)
+    # TODO check why this is 64 and not 32
+    assert_equal 32 , list.word_length
+  end
+  def test_layout
+    layout = Parfait::Layout.new Object
+    layout.set_layout( Parfait::Layout.new Object)
+    layout.push 5
+    assert_equal 32 , layout.word_length
+  end
+end