10/14
<OL>
<LI> Q: The opcode of STL is 14 (by Appendix A).  Why does it change to 17
later?
<LI> Q: The object code of "CLEAR X" is "B410".  Why won't it clear the
contents of both register X and A? (The id of X and A are 1 and 0,
respectively).
</OL>