TAL Reference Manual

TAL Syntax Summary (Railroad Diagrams)
Appendix B—526371.001
B-47
$OVERFLOW Function
$OVERFLOW Function
The $OVERFLOW function checks the state of the overflow indicator and indicates
whether an overflow occurred during an arithmetic operation.
$PARAM Function
The $PARAM function checks for the presence or absence of an actual parameter in
the call that invoked the current procedure or subprocedure.
$POINT Function
The $POINT function returns the fpoint value, in integer form, associated with a FIXED
expression.
$READCLOCK Function
The $READCLOCK function returns the current setting of the system clock.
VSTB128.vsd
$OPTIONAL (
cond - expression ,
param )
param - pair
VSTB129.vsd
$OVERFLOW
$PARAM
( formal - param )
VSTB130.vsd
$POINT ( fixed - expression )
VSTB131.vsd
$READCLOCK
VSTB132.vsd