remove use_reg on compiler and SA for load

test/risc/instructions/test_load_constant.rb

@@ -0,0 +1,32 @@
+require_relative "../helper"
+
+module Risc
+  class TestLoadConstant < MiniTest::Test
+    def setup
+      Parfait.boot!({})
+    end
+    def load(const = SlotMachine::StringConstant.new("hi") )
+      Risc.load_constant("source" , const)
+    end
+    def test_const
+      assert_equal LoadConstant , load.class
+    end
+    def test_const_reg
+      assert load.register.is_object?
+    end
+  end
+  class TestLoadConstant1 < MiniTest::Test
+    def setup
+      Parfait.boot!({})
+    end
+    def  load(const = Parfait.new_word("hi") )
+      Risc.load_constant("source" , const)
+    end
+    def test_parf
+      assert_equal LoadConstant , load.class
+    end
+    def test_parf_reg
+      assert load.register.is_object?
+    end
+  end
+end