put object files and executable in bin/ dir - keep . clean
cleanup Makefile cruft
@PUSH_EAX idempotent except for Forth stack and eax (i.e., don't clobber ebx)
@POP_EAX idempotent except for Forth stack and eax (i.e., don't clobber ebx)
fix skipped word in dict list chain (emit)
added words: * ! @ dup drop over swap rot