preface 
  Chapters                       Appendices
  --------                       ----------
  1  introduction                  a  register summary alphabetical order 
  2  coprocessor hardware          b  register summary address order 
  3  playfield hardware            c  enhanced chip set 
  4  sprite hardware               d  system memory maps 
  5  audio hardware                e  i/o connectors and interfaces 
  6  blitter hardware              f  8520 complex interface adapters 
  7  system control hardware       g  keyboard interface 
  8  interface hardware            h  external disk connector interface 
                                   I  hardware example include file 
   list of figures     glossary    j  custom chip pin allocation list 
   list of tables      index       k  zorro expansion bus