Here is the documentation that came with Allegro CL 4.3

• Allegro CL User guide, PDF
• Allegro CL release notes, ASCII
• Allegro CL release notes, PDF
• Allegro CL installation notes, ASCII
• Allegro CL installation notes, PDF
• Allegro CL readme notes for Emacs Lisp interface
• Allegro CL Emacs Lisp interface