Playfields
  allocating memory, 52 , 61 
  bitplane pointers, 54 
  collision, 213 
  color of pixels, 42-44 
  color register contents, 92 
  color table, 46 
  coloring the bitplanes, 45 , 55 
  colors in a single playfield, 45 
  defining a scrolled playfield, 85 
  defining display window, 57 
  defining dual playfields, 72 
  defining the basic playfield, 63 
  display window size - maximum, 79 ,normal, 58 
  displaying, 62 
  dual-playfield mode, 67 
  enabling DMA, 62 
  fetching data, 60-61 , 80 
  forming, 44 
  high resolution, 41 
    color selection, 94 
    example, 66 
  hold-and-modify, 95 
  hold-and-modify mode, 86 
  interlaced, 41 
  interlaced example, 66 
  low resolution, 41 
    colors, 93 
  memory required, 52 , 76 
  modulo registers, 62 
  multiple-playfield display, 89 
  non-interlaced, 42 
  normal, 42 
  pointer registers, 54 , 61 , 74 
  priority, 210 
  register summary, 89 
  scrolling - horizontal, 82 ,vertical, 81 
  selecting bitplanes, 48 
  setting resolution mode, 49 
  specifying modulo, 60-62 , 73 
  specifying the data fetch, 76 
  with external video source, 89 
  with genlock, 89 
  with larger display memory, 73