User`s guide

FORTRAN
/F77
Overrides any SET FORTRA conditional and calls the appropriate FORTRAN–77
compiler.
/HEADER
(FORTRAN IV only) Includes in the printout a list of options that are currently
in effect.
/I4
With FORTRAN IV, allocates two words for the default integer data type (though
it uses only one-word integers) so that it takes the same physical space as real
variables.
With FORTRAN–77, allocates and uses two words for the default integer and
logical variable length.
/[NO]LINENUMBERS
/LINENUMBERS includes internal sequence numbers in the executable
program. These are useful in debugging a FORTRAN program. They identify
the FORTRAN statements that cause run-time diagnostic error messages. This
is the default operation.
/NOLINENUMBERS requests no traceback information and suppresses the
generation of internal sequence numbers in the executable program. This
produces a smaller program and optimizes execution speed. Use this option
to compile only those programs that are already debugged; otherwise, the line
numbers in FORTRAN error messages are replaced by question marks and the
messages are difficult to interpret.
/LIST[:filespec]
Sends a compiler listing to the printer or to the file specification. This is not the
default; you must specify this option if you want a compilation listing.
The /LIST option has different meanings depending on how you specify it. The
following examples illustrate the ways you can use the /LIST option:
• To produce a listing on your printer, qualify the command with the /LIST
option; for example:
.FORTRAN/LIST MYPROG
• To produce a listing file, specify the /LIST option after the file you want to
compile; for example:
.FORTRAN MYPROG/LIST
• To store a listing on a file-structured device, specify /LIST with a device name.
The default listing-file name is the same as the input file with a LST file type.
The following command displays the listing on the terminal:
.FORTRAN/LIST:TT: MYPROG
RT–11 Command Descriptions 133