Nintendo 64 CIC clone
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.


Nintendo 64 CIC Clone

UltraCIC is a clone of the Nintendo 64 copy protection chip, the CIC. This code is meant to run on a PIC16F1613 microcontroller.

Note that the code omits the seed and checksum data which is necessary to boot this code on a console. Adding this data is left as an exercise to the reader.


This code was written by Mike Ryan as a part of the effort to reverse engineer the Nintendo 64 CIC. The author would like to thank:

  • John McMaster (die shots)
  • Marshall H (ROM extraction)
  • Segher (too smart)
  • Zoinkity
  • Markus and Markus