size = 1024
  15:  itd/d12c9600
  16:  itd/d12c9900 itd/d12c9780 itd/d12c9840 itd/d12c96c0
  17:  itd/d12c9c00 itd/d12c9b40 itd/d12c99c0 itd/d12c9a80
  18:  itd/d12c9f00 itd/d12c9e40 itd/d12c9d80 itd/d12c9cc0
  19:  itd/d12c9300 itd/d12c9240 itd/d12c9180 itd/d12c90c0
  20:  itd/d12c9540 itd/d12c93c0 itd/d12c9480
