Capstone is a lightweight multi-platform, multi-architecture disassembly framework.
Hopefully you will like this and develop interesting tools out of it. :P
http://www.capstone-engine.org/

Features:
  1. Support hardware architectures: ARM, ARM64 (ARMv8), Mips, PowerPC, Sparc, SystemZ & Intel (details).
  2. Clean/simple/lightweight/intuitive architecture-neutral API.
  3. Provide details on disassembled instruction (called “decomposer” by some others).
  4. Provide some semantics of the disassembled instruction, such as list of implicit registers read & written.
  5. Implemented in pure C language, with bindings for Python, Ruby, C#, Java, GO, OCaml & Vala available.
  6. Native support for Windows & *nix (with Mac OSX, iOS, Android, Linux, *BSD & Solaris confirmed).
  7. Thread-safe by design.
  8. Special support for embedding into firmware or OS kernel.


BR,
[ Gunther ]