misc to_s and small fixes

test/risc/test_interpreter.rb

@@ -54,7 +54,7 @@ module Risc
     end
     def test_pc1
       @interpreter.tick
-      assert_equal 21304 , @interpreter.pc
+      assert_equal 21432 , @interpreter.pc
     end
     def test_tick2
       @interpreter.tick
@@ -68,7 +68,7 @@ module Risc
     def test_pc2
       @interpreter.tick
       @interpreter.tick
-      assert_equal 21308 , @interpreter.pc
+      assert_equal 21436 , @interpreter.pc
     end
     def test_tick_14_jump
       14.times {@interpreter.tick}

test/risc/test_linker.rb

@@ -1,7 +1,7 @@
 require_relative "helper"
 
 module Risc
-  class TestMachineObjects < MiniTest::Test
+  class TestLinkerObjects < MiniTest::Test
 
     def setup
       Parfait.boot!
@@ -17,7 +17,7 @@ module Risc
       assert_raises {@machine.add_constant( 1 )}
     end
   end
-  class TestMachineInit < MiniTest::Test
+  class TestLinkerInit < MiniTest::Test
     def setup
       Parfait.boot!
       Risc.boot!

test/risc/test_linker1.rb

@@ -13,5 +13,12 @@ module Risc
         assert Position.get(obj).valid? , "#{Position.get(obj)} , #{obj.object_id.to_s(16)}"
       end
     end
+    def test_one_main
+      mains = @linker.assemblers.find_all{|asm| asm.method.name == :main }
+      assert_equal 1 , mains.length
+    end
+    def test_assembler_num
+      assert_equal 23 , @linker.assemblers.length
+    end
   end
 end