Here is the link for
all Kindles.
I believe this is what you had in mind:
"No Reverse Engineering, Decompilation, Disassembly, or Circumvention. You may not modify, reverse engineer, decompile, or disassemble the Kindle or the Software, whether in whole or in part, create any derivative works from or of the Software, or bypass, modify, defeat, or tamper with or circumvent any of the functions or protections of the Kindle or Software or any mechanisms operatively linked to the Software, for example, by augmenting or substituting any digital rights management functionality of the Kindle or Software."