seperate position create and register

many test fixes

test/risc/position/test_instruction_listener.rb

@@ -5,13 +5,13 @@ module Risc
     def setup
       Risc.machine.boot
       @binary = Parfait::BinaryCode.new(1)
-      @bin_pos = Position.new(@binary,0)
+      @bin_pos = Position.new(@binary).set(0)
       @instruction = DummyInstruction.new(DummyInstruction.new)
       @position = InstructionListener.init(@instruction , @binary)
     end
     def test_label_address
       label = Label.new("hi" ,"ho" , FakeAddress.new(0))
-      label_pos = Position.new( label , -1 )
+      label_pos = Position.new( label )
       label_pos.position_listener(InstructionListener.new(@binary))
       label_pos.set(8)
       assert_equal 8 , label_pos.object.address.value
@@ -52,8 +52,8 @@ module Risc
     def test_label_at_branch
       label = Label.new("Hi","Ho" , FakeAddress.new(5) , @instruction)
       branch = Branch.new("b" , label)
-      Position.new(label , 8 )
-      Position.new(branch , 8 )
+      Position.new(label ).set(8)
+      Position.new(branch).set(8)
       at_8 = Position.at(8)
       assert_equal Position , at_8.class
       assert_equal Branch , at_8.object.class

test/risc/position/test_label_listener.rb

@@ -6,9 +6,9 @@ module Risc
     def setup
       Risc.machine.boot
       @label = Label.new("Hi","Ho" , FakeAddress.new(5))
-      @label_pos = Position.new(@label , -1)
+      @label_pos = Position.new(@label ).set(4)
       @code = Parfait::BinaryCode.new(1)
-      @code_pos = Position.new(@code , -1)
+      @code_pos = Position.new(@code)
       @code_pos.position_listener( LabelListener.new(@label))
     end
 

test/risc/position/test_position.rb

@@ -5,7 +5,7 @@ module Risc
   class TestPosition < MiniTest::Test
 
     def setup
-      @pos = Position.new(self , -1)
+      @pos = Position.new(self )
     end
     def test_new
       assert @pos
@@ -15,7 +15,7 @@ module Risc
     end
     def test_next_slot
       mov = Arm::ArmMachine.mov(:r1 , :r1)
-      position = Position.new(mov , 0)
+      position = Position.new(mov ).set(0)
       assert_equal 4, position.next_slot
     end
     def test_has_get_code
@@ -38,7 +38,7 @@ module Risc
       assert_equal 1 , @pos.position_listeners.length
     end
     def test_set
-      assert_equal 0 , @pos.set(0)
+      assert_equal 0 , @pos.set(0).at
     end
   end
 end

test/risc/position/test_position1.rb

@@ -5,7 +5,7 @@ module Risc
     def setup
       Position.clear_positions
       @instruction = DummyInstruction.new
-      @position = Position.new(@instruction , 0)
+      @position = Position.new(@instruction).set(0)
       @listener = PositionListener.new( @instruction )
     end
     def test_has_register
@@ -24,7 +24,7 @@ module Risc
     end
     def test_no_fire_after_unregister
       @object = @instruction
-      Position.new(self, 10)
+      Position.new(self).set(10)
       assert @position.register_event(:position_changed , self)#can't use helper
       assert @position.remove_position_listener(self)
       @position.trigger(:position_changed , @position)
@@ -38,7 +38,7 @@ module Risc
     end
     def test_position_set_triggers
       @object = @instruction
-      Position.new(self, 0)
+      Position.new(self).set(0)
       @position.register_event(:position_changed , self)#can't use helper
       @position.set(10)
       assert_equal @position , @trigger

test/risc/position/test_position2.rb

@@ -4,7 +4,7 @@ module Risc
   class TestPositionMath < MiniTest::Test
 
     def setup
-      @pos = Position.new(self , 5)
+      @pos = Position.new(self).set(5)
     end
     def test_add
       res = @pos + 5
@@ -15,24 +15,24 @@ module Risc
       assert_equal 2 , res
     end
     def test_sub_pos
-      res = @pos - Position.new(@pos,4)
+      res = @pos - Position.new(@pos).set(4)
       assert_equal 1 , res
     end
     def test_lg
-      assert @pos > Position.new(@pos,4)
+      assert @pos > Position.new(@pos).set(2)
     end
     def test_tos
       assert_equal "0x5" , @pos.to_s
     end
     def test_reset_ok
       pos = @pos.set(10)
-      assert_equal 10 , pos
+      assert_equal 10 , pos.at
     end
     def test_object_class_test
       assert_equal :object , @pos.object_class
     end
     def test_object_class_instr
-      assert_equal :instruction , Position.new(Label.new("hi","ho",FakeAddress.new(1)),4).object_class
+      assert_equal :instruction , Position.new(Label.new("hi","ho",FakeAddress.new(1))).set(4).object_class
     end
     def test_at
       pos = Position.at(5)

test/risc/position/test_position_listener.rb

@@ -6,8 +6,8 @@ module Risc
     def setup
       @object = Dummy.new
       @dependent = Dummy.new
-      @pos = Position.new(@object,0)
-      Position.new(@dependent,0)
+      @pos = Position.new(@object).set(0)
+      Position.new(@dependent).set(0)
       @listener = PositionListener.new(@dependent)
     end
     def test_register