BIT-SMASHER is a lean, straightforward and admittedly naive Common Lisp library for handling the oft-overlooked bit-vector type, bit-vector arithmetic, and type conversion between bit-vectors, octet-vectors, hexadecimal strings, and non-negative integers, extending the related functionality in the Common Lisp standard. While of little use to the average Lisp project, it was designed for those cases where working with bit-vectors is either necessary, or would be ideal if it were not for the lack of the functions this library provides.
You can get BIT-SMASHER now at: https://github.com/thephoeron/bit-smasher — or wait for it to come out in the next Quicklisp release.
(null '()) => T 