Emacs for HP49G and hp49g+

This library enhances the built-in editor of the HP49G with features known from famous GNU Emacs editor. You will find things like dynamic or table guided completion, incremental search, regular expressions, folding, macro recording, programming language support (RPL and ML) and extensibility (write you own editor commands). Emacs

is configurable	displays thousands of stack diagrams	provides an entry browser sorted by functionality	supports folding of source code	understands syntactic units

and much more!!!

Read the documentation of Emacs online.
Download the complete distribution of Emacs 2.11a
Here is still Emacs 1.11, and older version only for HP49G.
Thomas Rast's extended version of the extable library is included in the Emacs distribution. You also can download it separately.