byte, byte-size, byte-positionFunction


    byte size position bytespec

    byte-size bytespec size

    byte-position bytespec position

    Arguments and Values

    size, position — a non-negative integer.

    bytespec — a byte specifier.


    byte returns a byte specifier that indicates a byte of width size and whose bits have weights 2position+size1 through 2position, and whose representation is implementation-dependent.

    byte-size returns the number of bits specified by bytespec.

    byte-position returns the position specified by bytespec.

    (setq b (byte 100 200))  #<BYTE-SPECIFIER size 100 position 200> 
    (byte-size b)  100 
    (byte-position b)  200
    See Also

    ldb, dpb

    (byte-size (byte j k))  j 
    (byte-position (byte j k))  k

    A byte of size of 0 is permissible; it refers to a byte of width zero. For example,

    (ldb (byte 0 3) #o7777)  0 
    (dpb #o7777 (byte 0 3) 0)  0