decus-8-102a comes with a HELP-style boot loader. Here's what to toggle (HSR version): 0020 LA 6011 DEP 5020 DEP 6016 DEP 7012 DEP 7010 DEP 7440 DEP 2027 DEP 3002 DEP 5020 DEP 0022 LA START With the tape positioned on the first segment, this should load and start a version of the BIN loader to load the second segment. Alternatively, if your BIN loader fits in the last half of the last page, you can just use that to load the second segment. The starting address for LISP itself is 3000 to re-initialize, or 3001 to retain existing objects. Vince