/sys$common/syshlp/helplib.hlb PASCAL, Attributes, Size, BYTE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The BYTE attribute specifies the amount of storage in  bytes  to
  be received by the object.

  Syntax:

     BYTE [[( n )]]

  The optional constant 'n' indicates the number of  byte  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 BYTE attribute.