GDSX (Extended General Device Support) Manual

Operations and Support
Extended General Device Support (GDSX) Manual—529931-001
3-2
ASSIGN and PARAM Commands
In all other cases, the operating system runs GDSX at a low PIN. Even if all the above
conditions are true, if a high PIN is not available, GDSX runs at a low PIN.
For information on setting the HIGHPIN object file attribute or the TACL #HIGHPIN
built-in variable, see the Guardian Application Conversion Guide.
ASSIGN and PARAM Commands
Before running a GDSX process, if it is necessary to clear any previously set
parameter values, enter the following command at a TACL prompt:
> CLEAR ALL
Then enter any TACL ASSIGN or PARAM commands that are necessary for your
application. The syntax for the ASSIGN command is:
The syntax for the PARAM command is:
For example, to specify a maximum of two LINE^HANDLER tasks for a GDSX
process, enter the following command:
> PARAM MAXLINES 2
To specify a maximum of 30 simultaneous external openers for a GDSX process, enter
the following command:
> PARAM MAXOPENS 30
To specify that your GDSX process is converted, set d^plus^enabled of the
CONTROLFLAGS configuration parameter to 1 by entering the following command:
> PARAM CONTROLFLAGS 8
Many configuration parameters can also be set or changed within SCF. For detailed
information on the configuration parameters, see GDSX Configuration Parameters on
page 3-13.
Running a GDSX Process
The RUN command to start GDSX is:
ASSIGN logical-unit , actual-file-name
PARAM configuration-parameter value
Caution. The PARAM CONTROLFLAGS command also turns off all the other flags in the
CONTROLFLAGS configuration parameter. See CONTROLFLAGS
on page 2-52.
RUN GDSX-object-file / run-option-list / [ backup-cpu-number
]