integer was wrong padded§ length

or rather right (2 as should be and will be)
but currently we use next AND value + type means 3, rounded 4
because we can’t swap types at compile time (as is planned at runtime,
we use next OR value)

test/risc/interpreter/calling/test_minus.rb

@@ -46,7 +46,7 @@ module Risc
       ret = main_ticks(63)
       assert_equal FunctionReturn ,  ret.class
       assert_equal :r1 ,  ret.register.symbol
-      assert_equal 18628 ,  @interpreter.get_register(ret.register)
+      assert_equal 19460 ,  @interpreter.get_register(ret.register)
     end
     def test_sys
       sys = main_ticks(65)