ccess procedures come in different flavors according to the size of the represented integer, and the <a href="http://en.wikipedia.org/wiki/Endianness">endianness</a> of the representation.  The procedures also distinguish signed and unsigned representations.  The signed representations all use <a href="http://en.wikipedia.org/wiki/Two's_complement">two's complement</a>.</p><p>For procedures that have no "natural" return value, this SRFI often uses the sentence</p><p><em>The return values are unspecified.</e