add another test (still failing)

test/elf/test_all.rb

@@ -1 +1,2 @@
 require_relative "test_hello"
+require_relative "test_zero"

test/elf/test_zero.rb

@@ -0,0 +1,12 @@
+require_relative "../helper"
+
+class TestZeroCode < MiniTest::Test
+
+  def test_string_put
+    machine = Register.machine.boot
+    machine.collect
+    machine.translate_arm
+#    writer = Elf::ObjectWriter.new
+#    writer.save "test/zero.o"
+  end
+end