A simple/fast emacs like editor

GNU Zile is a lightweight Emacs clone. Zile is short for Zile Is Lossy
Emacs. Zile has been written to be as similar as possible to Emacs;
every Emacs user should feel at home.

Zile has all of Emacs's basic editing features: it is 8-bit clean
(though it currently lacks Unicode support), and the number of editing
buffers and windows is only limited by available memory and screen
space respectively. Registers, minibuffer completion and auto fill are
available. Function and variable names are identical with Emacs's.

However, all of this is packed into a program which typically compiles
to about 130Kb.