TAL Programmer's Guide

TACL Commands
File Names and TACL Commands
E–4 096254 Tandem Computers Incorporated
Internal File Names The C-series operating system uses the internal form of a file name when passing it
between your program and the operating system. The D-series operating system uses
the internal form only if your program has not been converted to use D-series features.
For information on converting external file names to internal file names in a program,
see the Guardian Programmer’s Guide and the Guardian Procedure Calls Reference Manual.
TACL Commands You can send information to the compiler by using the following TACL commands:
DEFINE
PARAM
ASSIGN
These commands are summarized in the remainder of this appendix. For complete
information on these commands, see the following manuals:
TACL Reference Manual (syntactic information)
TACL Programmer's Guide (programmatic information)
Guardian User’s Guide (interactive information)
Guardian Programmer’s Guide (programmatic information)
TACL DEFINE
Commands
By issuing TACL DEFINE commands before starting the compiler, you can:
Substitute an actual file name for a logical file name used in the source file
Specify spooler attributes
Specify file attributes on a labeled tape
Specify process defaults, such as default volume and subvolume
Substituting File Names You can substitute a file name for a logical (or TACL DEFINE) name being passed by a
nonprivileged program to a system procedure. To substitute a file name, issue the
following TACL commands:
TACL Command Purpose
SET DEFMODE ON Enable DEFINE processing
SET DEFINE CLASS Set the initial attribute of a DEFINE command to CLASS MAP
SET DEFINE Set the working attributes
ADD DEFINE Specify a file name to substitute for a DEFINE name