fix integer plus

mostly forgot the return sequence

lib/risc/builtin/integer.rb

@@ -20,13 +20,13 @@ module Risc
           compiler = compiler_for(:Integer,:+ ,{other: :Integer})
           me , other = compiler.self_and_int_arg(source + "1")
           # reduce me and other to integers
-          compiler.add_slot_to_reg( source + "2" , me , Parfait::Integer.integer_index , me)
+          compiler.reduce_int( source + "2", me )
-          compiler.add_slot_to_reg( source + "3", other , Parfait::Integer.integer_index , other)
+          compiler.reduce_int( source + "3", other )
           compiler.add_code Risc.op( source + "4", :+ , me , other)
           compiler.add_new_int(me , other)
           compiler.add_reg_to_slot( source + "5" , other , :message , :return_value)
+          compiler.add_mom( Mom::ReturnSequence.new)
           return compiler.method
-
         end
         def div10( context )
           s = "div_10 "

test/risc/interpreter/test_plus.rb

@@ -24,7 +24,11 @@ module Risc
              SlotToReg, RegToSlot, SlotToReg, LoadConstant, FunctionCall,
              Label, SlotToReg, SlotToReg, SlotToReg, SlotToReg,
              SlotToReg, OperatorInstruction, LoadConstant, SlotToReg, SlotToReg,
-             RegToSlot, RegToSlot, RegToSlot, Label, NilClass]
+             RegToSlot, RegToSlot, RegToSlot, SlotToReg, SlotToReg,
+             RegToSlot, SlotToReg, SlotToReg, FunctionReturn, SlotToReg,
+             SlotToReg, RegToSlot, SlotToReg, SlotToReg, RegToSlot,
+             SlotToReg, SlotToReg, RegToSlot, SlotToReg, SlotToReg,
+             FunctionReturn, Transfer, Syscall, NilClass]
        assert_equal Parfait::Integer , get_return.class
        assert_equal 10 , get_return.value
     end
@@ -99,5 +103,10 @@ module Risc
       assert_equal  5 , sl.index
       assert_equal :r4 , sl.register.symbol
     end
+    def test_sys
+      sys = ticks(88)
+      assert_equal Syscall ,  sys.class
+      assert_equal :exit ,  sys.name
+    end
   end
 end