Local registers on HP-41?

[Raymond Del Tondo]

You could use data files in X-Memory as local register blocks, and/or swap in/out main memory register blocks and X-Memory register blocks. So if your program needs 10 memory registers for local storage, first save the register contents of those regs to an X-M file, then use them locally within your program, and restore the block afterwards. Given an X-F module is plugged, of course;-)