Custom Menus on High-End RPL Machines

[Giuseppe Donnini]

Thanks for the clarification. The reason it's not mentioned in my article is that I deliberately restricted the discussion—as I pointed out—to menu keys defined by global names. The feature you mention, however, is a property of ROM pointers.

That's the reason, by the way, why user-defined functions (UDFs)—which are stored as global variables—don't provide the same ease-of-use in algebraic entry mode as built-in (or carefully programmed plug-in) functions, but rather have the user manually type in the parentheses enclosing the function's argument(s).