VMS Help PASCAL, Attributes, Size, BIT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The BIT attribute specifies the amount of storage in bits to  be
  received by the object.

  Syntax:

     BIT [[( n )]]

  The optional constant 'n' indicates the number  of  bit  storage
  units.   It  must denote a positive integer.  If you omit n, the
  default value is 1.

  See the  "Compaq  Pascal  Language  Reference  Manual"  for  the
  complete description of using the BIT attribute.