Is there an emacs c code document ?

[Stephen J. Turnbull]

Kyle M. Lee writes:

 > Hi all,
 > I am very interested in emacs internal implementation, especially the c
 > code. And I have gotten the cvs emacs 23 code. I googled with "emacs
 > internal", found nothing valuable. So I asked this question, are there
 > some nice documents or guide about the emacs internal implementation ?

The XEmacs Internals Manual
http://www.xemacs.org/Documentation/21.5/html/internals.html
may be of some use for general coding conventions and techniques.  The
Mule code is quite different, as are the internal console APIs.  But
the coding conventions for the Lisp engine are pretty similar.