write adjusted address

and rename integer to address in label
1k hurray

lib/arm/instructions/logic_instruction.rb

@@ -91,7 +91,7 @@ module Arm
       if( @left.is_a?(Parfait::Object) or @left.is_a?(Risc::Label) or
         (@left.is_a?(Symbol) and !Risc::RiscValue.look_like_reg(@left)))
         left = @left
-        left = @left.integer if left.is_a?(Risc::Label)
+        left = @left.address if left.is_a?(Risc::Label)
         # do pc relative addressing with the difference to the instuction
         # 8 is for the funny pipeline adjustment (ie pointing to fetch and not execute)
         right = Risc::Position.get(left) - Risc::Position.get(self) - 8

lib/arm/translator.rb

@@ -13,7 +13,7 @@ module Arm
     end
 
     def translate_Label( code )
-      Risc.label( code.source , code.name , code.integer)
+      Risc.label( code.source , code.name , code.address)
     end
 
     # arm indexes are

lib/risc/instructions/label.rb

@@ -7,7 +7,7 @@ module Risc
   # So branches and Labels are pairs, fan out, fan in
   #
   # For a return, the address (position) of the label has to be loaded.
-  # So a Label carries the Integer constant that holds the address (it's own
+  # So a Label carries the ReturnAddress constant that holds the address (it's own
   # position, again see positioning code).
   # But currently the label is used in the Risc abstraction layer, and in the
   # arm/interpreter layer. The integer is only used in the lower layer, but needs
@@ -15,13 +15,13 @@ module Risc
 
   class Label < Instruction
     # See class description. also factory method Risc.label below
-    def initialize( source , name , int , nekst = nil)
+    def initialize( source , name , addr , nekst = nil)
       super(source , nekst)
       @name = name
-      @integer = int
-      raise "Not int #{int}" unless int.is_a?(Parfait::Integer)
+      @address = addr
+      raise "Not address #{addr}" unless addr.is_a?(Parfait::ReturnAddress)
     end
-    attr_reader :name , :integer
+    attr_reader :name , :address
 
     def to_cpu(translator)
       @cpu_label ||= super
@@ -65,9 +65,7 @@ module Risc
   # An integer is plucked from object_space abd added to the machine constant pool
   # if none was given
   def self.label( source , name , position = nil , nekst = nil)
-    unless position
-      position = Risc.machine.get_address
-    end
+    position = Risc.machine.get_address unless position
     Label.new( source , name , position, nekst )
   end
 end

lib/risc/interpreter.rb

@@ -141,7 +141,7 @@ module Risc
     def execute_LoadConstant
       to = @instruction.register
       value = @instruction.constant
-      value = value.integer if value.is_a?(Label)
+      value = value.address if value.is_a?(Label)
       set_register( to , value )
       true
     end

lib/risc/position/instruction_position.rb

@@ -24,7 +24,7 @@ module Risc
       end
       def init(at, binary)
         @binary = binary
-        instruction.integer.set_value(at) if instruction.is_a?(Label)
+        instruction.address.set_value(at) if instruction.is_a?(Label)
         return if at == 0 and binary.nil?
         raise "faux pas" if at < Position.get(binary).at
         return unless @instruction.next

lib/risc/text_writer.rb

@@ -90,13 +90,15 @@ module Risc
       when Parfait::Word, Symbol
         write_String obj
       when Parfait::BinaryCode
-        write_BinaryCode obj
+        write_BinaryCode( obj )
+      when Parfait::ReturnAddress
+        write_return_address( obj )
       when Parfait::Integer
-        write_integer obj
+        write_integer( obj )
       when Parfait::Data4
-        write_data4 obj
+        write_data4( obj )
       else
-        write_object obj
+        write_object( obj )
       end
     end
 
@@ -145,6 +147,14 @@ module Risc
       written
     end
 
+    def write_return_address( addr )
+      write_ref_for( addr.get_type )
+      write_ref_for( addr.next_integer )
+      write_ref_for( addr.value + @machine.platform.loaded_at )
+      write_ref_for( 0 )
+      log.debug "Integer witten stream 0x#{@stream.length.to_s(16)}"
+    end
+
     def write_integer( int )
       write_ref_for( int.get_type )
       write_ref_for( int.next_integer )

test/arm/test_logic.rb

@@ -90,8 +90,8 @@ module Arm
     end
 
     def label( pos = 0x12 + 8)
-      l  = Risc::Label.new("some" , "Label" , FakeInt.new(2))
-      Risc::Position.set(l.integer , 0x22 + 8)
+      l  = Risc::Label.new("some" , "Label" , FakeAddress.new(2))
+      Risc::Position.set(l.address , 0x22 + 8)
       Risc::Position.set(l , pos , @binary)
       l
     end

test/risc/position/test_instruction_position.rb

@@ -16,12 +16,12 @@ module Risc
       end
       def test_label_set_int
         Position.set( @label , 8 , @binary)
-        assert_equal 8 , @label.integer.value
+        assert_equal 8 , @label.address.value
       end
       def test_label_reset_int
         Position.set( @label , 8 , @binary)
         Position.set( @label , 18 , @binary)
-        assert_equal 18 , @label.integer.value        
+        assert_equal 18 , @label.address.value
       end
       def test_ins_propagates
         @label.set_next Arm::ArmMachine.b( @label)

test/risc/test_instructions.rb

@@ -3,7 +3,7 @@ require_relative "../helper"
 module Risc
   class TestInstructions < MiniTest::Test
     def setup
-      @label = Label.new("test" , "test",FakeInt.new(5))
+      @label = Label.new("test" , "test",FakeAddress.new(5))
       @branch = Branch.new("test" , @label)
       @instruction = Instruction.new("test")
     end
@@ -19,7 +19,7 @@ module Risc
       assert @label.to_s.include?("Label")
     end
     def test_label_tos2
-      assert Label.new("nil",nil,FakeInt.new(2)).to_s.include?("Label")
+      assert Label.new("nil",nil,FakeAddress.new(2)).to_s.include?("Label")
     end
     def test_last_empty
       assert_equal @instruction, @instruction.last
@@ -55,7 +55,7 @@ module Risc
       assert_nil  @instruction.next(2)
     end
     def test_label_is_method
-      label = Label.new("test" , "Object.test" , FakeInt.new(5))
+      label = Label.new("test" , "Object.test" , FakeAddress.new(5))
       assert label.is_method
     end
     def test_label_is_not_method

test/support/fake_int.rb

@@ -13,3 +13,8 @@ class FakeInt
     @value = val
   end
 end
+class FakeAddress < FakeInt
+  def is_a?(clazz)
+    clazz == Parfait::ReturnAddress
+  end
+end