
ANSI Common Lisp 12 Numbers 12.2 Dictionary of Numbers
12.2.10 unsignedbyte 
Type 
 Supertypes:

unsignedbyte,
signedbyte,
integer,
rational,
real,
number,
t
 Description:

The atomic type specifier unsignedbyte denotes the same
type as is denoted by the type specifier (integer 0 *).
 Compound Type Specifier Kind:

Abbreviating.
 Compound Type Specifier Syntax:

(unsignedbyte [s  *])
 Compound Type Specifier Arguments:

s  a positive integer.
 Compound Type Specifier Description:

This denotes the set of nonnegative integers that can be
represented in a byte of size s (bits).
This is equivalent
to (mod m) for m=2^{s}, or
to (integer 0 n) for n=2^{s1}.
The type unsignedbyte or
the type (unsignedbyte *) is the same as
the type (integer 0 *), the set of nonnegative integers.
 Notes:

The type (unsignedbyte 1) is also called bit.
 Allegro CL Implementation Details:

None.
