/CONVERT=option D=/CONVERT=NATIVE

 Specifies the format of numeric unformatted data in a file.

 By default, an unformatted file containing numeric data is assumed
 to be in the same floating-point format used for memory
 representation or /CONVERT=NATIVE.  You set the floating-point
 format used for memory representation using the /FLOAT qualifier.

 There are other ways to specify format for numeric unformatted
 files:  you can specify an OpenVMS logical name, OPEN (CONVERT=),
 or OPTIONS/CONVERT.  The order of precedence is:

 1.  A logical name

     The form is FOR$CONVERTnnn, where "nnn" is the logical unit
     number (including leading zeros if necessary).

 2.  OPEN (CONVERT=)

 3.  OPTIONS/CONVERT

 4.  The qualifier /CONVERT


 The /CONVERT qualifier and OPTIONS/CONVERT affect all unit numbers
 used by the program, while a logical name and OPEN (CONVERT=)
 affect specific unit numbers.

 The /CONVERT qualifier specifies a default data-conversion type for
 all logical units opened in the program unit, either explicitly by
 an OPEN statement or implicitly by a READ, WRITE or other I/O
 statement (with the exception of DEFINE FILE).

 For more information on using unformatted data files, using OpenVMS
 logical names to specify CONVERT options, and information about the
 ranges of the various data types, see the HP Fortran for OpenVMS
 User Manual.

 BIG_ENDIAN
   Specifies that numeric data in unformatted files is in big endian
   integer format (INTEGER declarations of the appropriate size) and
   IEEE floating-point format (REAL and COMPLEX declarations of the
   appropriate size).

   INTEGER(KIND=1) data is the same for little endian and big
   endian.

 CRAY
   Specifies that numeric data in unformatted files is in big endian
   integer format (INTEGER declarations of the appropriate size) and
   CRAY floating-point format (REAL and COMPLEX declarations of the
   appropriate size).

 FDX
   Specifies that numeric data in unformatted files is in little
   endian integer format (INTEGER declarations of the appropriate
   size).  It also specifies VAX floating-point format
   F_floating (for size REAL(KIND=4) and COMPLEX(KIND=4)),
   D_floating (for size REAL(KIND=8) and COMPLEX(KIND=8)), and IEEE
   X_floating (for size REAL(KIND=16)).

 FGX
   Specifies that numeric data in unformatted files is in little
   endian integer format (INTEGER declarations of the appropriate
   size).  It also specifies VAX floating-point format
   F_floating (for size REAL(KIND=4) and COMPLEX(KIND=4)) and
   G_floating (for size REAL(KIND=8) and COMPLEX(KIND=8)), and IEEE
   X_floating (for size REAL(KIND=16)).

 IBM
   Specifies that numeric data in unformatted files is in big endian
   integer format (INTEGER declarations of the appropriate size) and
   IBM System\370 floating-point format (REAL and COMPLEX
   declarations of the appropriate size).

 LITTLE_ENDIAN
   Specifies that numeric data in unformatted files is in little
   endian integer format (INTEGER declarations of the appropriate
   size) and IEEE IBM System\370 floating-point format (REAL and
   COMPLEX declarations of the appropriate size).

   INTEGER(KIND=1) data is the same for little endian and big
   endian.

 NATIVE
   Specifies that numeric data in unformatted files is determined by
   the floating-point format representation in memory, which is
   specified using the /FLOAT qualifier.  If you omit the /FLOAT
   qualifier and specify the obsolete /[NO]G_FLOATING qualifier, the
   format specified by the /[NO]G_FLOATING qualifier is used.

   This is the default.

 VAXD
   Specifies that numeric data in unformatted files is in little
   endian integer format (INTEGER declarations of the appropriate
   size).  It also specifies HP VAX floating-point format
   F_floating (for size REAL(KIND=4) and COMPLEX(KIND=4)) and
   D_floating (for size REAL(KIND=8) and COMPLEX(KIND=8)), and
   H_floating (for size REAL(KIND=16)).

 VAXG
   Specifies that numeric data in unformatted files is in little
   endian integer format (INTEGER declarations of the appropriate
   size).  It also specifies HP VAX floating-point format
   F_floating (for size REAL(KIND=4) and COMPLEX(KIND=4)) and
   G_floating (for size REAL(KIND=8) and COMPLEX(KIND=8)), and
   H_floating (for size REAL(KIND=16)).