If the necessary tools (LYX, LATEX, LATEX2HTML) are installed it is as easy as changing into the doc directory and typing ''make'' there. You're invited to make changes and additions to this manual (sdcc/doc/sdccman.lyx). Using LYX http://www.lyx.org as editor this is straightforward. Prebuilt documentation in html and pdf format is available from http://sdcc.sf.net/snap.php.