FORTRAN Reference Manual
Running and Debugging Programs
FORTRAN Reference Manual—528615-001
11- 4
Using TACL PARAM Commands
Using TACL PARAM Commands
Table 11-1 shows the TACL PARAM commands that you can specify when you run 
your program. For more information, see the CRE Programmer’s Guide.
Disabling Level-3 Spooling
Beginning with release C20 of FORTRAN, all program files directed to a spooler 
collector use level-3 spooling by default. You do not have to change anything in 
programs written prior to release C20 or recompile them to use this faster method of 
spooling.
You might want to disable level-3 spooling. By entering a TACL PARAM before you run 
your program, you can disable level-3 spooling.
Disabling Level-3 Spooling With ENV OLD
If you run a program that you compiled with a C-series FORTRAN compiler or a 
program that you compiled with a D-series FORTRAN compiler with ENV OLD in 
effect, you can disable level-3 spooling at run-time by entering a PARAM SPOOLOUT 
TACL command before you run your FORTRAN program. The general form of the 
SPOOLOUT PARAM is:
Table 11-1. Run-Time TACL PARAM Commands
PARAM Values Environment Effect
BUFFERED-SPOOLING ON
OFF
COMMON BUFFERED-SPOOLING OFF 
ensures that your program does 
not use level-3 spooling.
EXECUTION-LOG name *
file name
COMMON If present, affects the names of 
standard input, standard output, 
and standard log files.
INSPECT param ON
OFF
COMMON Along with EXECUTION-LOG, 
determines whether your program 
invokes a debugger if a run-time 
error occurs.
NONSTOP param ON
OFF
COMMON Along with other parameters, 
determines whether your program 
runs as a NonStop process.
SPOOLOUT 0
1
OLD Controls whether your program 
uses level-3 spooling.
SWITCH-nn, value nn is 1 - 
15 value 
is ON or 
OFF
COMMON Specifies the values of software 
program switches. Programs that 
specify ENV COMMON can read 
switch values.










