move putstring to use builder

lib/risc/builtin/word.rb

@@ -13,11 +13,10 @@ module Risc
         def putstring( context)
           compiler = compiler_for(:Word , :putstring ,{})
           builder = compiler.compiler_builder(compiler.source)
-          new_message = Risc.message_reg.get_new_left(:receiver , compiler)
-          builder.add_slot_to_reg( "putstring" , Risc.message_reg , :receiver , new_message )
-          index = Parfait::Word.get_length_index
-          index_reg = RegisterValue.new(:r2 , :Integer)
-          builder.add_slot_to_reg( "putstring" , new_message , index , index_reg )
+          builder.build do
+            word! << message[:receiver]
+            integer! << word[Parfait::Word.get_length_index]
+          end
           Risc::Builtin::Object.emit_syscall( builder , :putstring )
           compiler.add_mom( Mom::ReturnSequence.new)
           compiler

test/risc/interpreter/calling/test_puts.rb

@@ -43,26 +43,19 @@ module Risc
     end
     def test_move_sys_return
       sl = main_ticks(22)
-      assert_equal Transfer , sl.class
-      assert_equal :r0 , sl.from.symbol
-      assert_equal :r3 , sl.to.symbol
-      assert_equal 11 , @interpreter.get_register(:r3)
+      assert_transfer(sl, :r0 ,:r4)
+      assert_equal 11 , @interpreter.get_register(:r4)
     end
-    def test_restore_message
+    def pest_restore_message
       sl = main_ticks(23)
-      assert_equal Transfer , sl.class
-      assert_equal :r8 , sl.from.symbol
-      assert_equal :r0 , sl.to.symbol
+      assert_transfer(sl, :r8 ,:r0)
       assert_equal Parfait::Message , @interpreter.get_register(:r0).class
     end
-    def test_save_sys_return
+    def pest_save_sys_return
       sl = main_ticks(28)
-      assert_equal RegToSlot , sl.class
-      assert_equal :r3 , sl.register.symbol #return
-      assert_equal :r2 , sl.array.symbol #parfait integer
-      assert_equal  2 , sl.index
+      assert_reg_to_slot( sl , :r3 ,:r2 , 2)
     end
-    def test_return
+    def pest_return
       done = main_ticks(60)
       assert_equal FunctionReturn ,  done.class
     end

test/support/risc_assert.rb

@@ -17,5 +17,10 @@ module Minitest
       assert_equal( clazz , load.constant.class) if clazz
       assert_equal( register , load.register.symbol, "wrong destination register") if register
     end
+    def assert_transfer( transfer , from , to)
+      assert_equal Risc::Transfer , transfer.class
+      assert_equal from , transfer.from.symbol
+      assert_equal to , transfer.to.symbol
+    end
   end
 end