VMS Help FORTRAN, /ASSUME  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  /ASSUME=(option[,...])         D=/ASSUME=(ACCU,NOBYTERECL,NODUMM)

  Specifies what the compiler can assume about program behavior
  without affecting correct results when it optimizes code.

  Additional Information (explode) :

• ACCURACY_SENSITIVE
• BYTERECL
• DUMMY_ALIASES
• ALL
• NONE