fix register use in putstring

was off by one, the syscall is write 
and the first arg is file_descriptor
ie 1 == stdout

test/risc/interpreter/calling/test_puts.rb

@@ -35,9 +35,9 @@ module Risc
 
     def test_pre_sys
       done = main_ticks(24)
-      assert_equal Parfait::Word , @interpreter.get_register(:r0).class
-      assert_equal "Hello again" , @interpreter.get_register(:r0).to_string
-      assert_equal 11 , @interpreter.get_register(:r1)
+      assert_equal Parfait::Word , @interpreter.get_register(@interpreter.std_reg(:syscall_2)).class
+      assert_equal "Hello again" , @interpreter.get_register(@interpreter.std_reg(:syscall_2)).to_string
+      assert_equal 11 , @interpreter.get_register(@interpreter.std_reg(:syscall_3))
     end
 
     def test_sys

test/risc/test_builder1.rb

@@ -26,5 +26,10 @@ module Risc
       int = @builder.allocate_int
       assert_allocate
     end
+    def test_compiler
+      int = @builder.allocate_int
+      assert int.compiler
+      assert int.symbol.to_s.start_with?("id_fac")
+    end
   end
 end

test/slot_machine/macro/test_putstring.rb

@@ -24,8 +24,8 @@ module SlotMachine
         assert_reg_to_slot s + 1 , "id_factory_.next_object"  , :message , 5
         assert_slot_to_reg s + 2 ,:message , 2 , "message.receiver"
         assert_slot_to_reg s + 3 ,"message.receiver" , 1 , "id_factory_.next_object"
-        assert_transfer s + 4 , :"message.receiver" , :syscall_1
-        assert_transfer s + 5 , "id_factory_.next_object" , :syscall_2
+        assert_transfer s + 4 , :"message.receiver" , :syscall_2
+        assert_transfer s + 5 , "id_factory_.next_object" , :syscall_3
         assert_transfer s + 6 , :message , :saved_message
         assert_syscall s + 7 , :putstring
         assert_transfer s + 8 , :syscall_1 , :restore_integer_return