TAL Reference Manual

Standard Functions

TAL Reference Manual—526371-001

14-38

$READCLOCK Function

The $READCLOCK function returns the current setting of the system clock.

Usage Considerations

$READCLOCK returns the current setting of the system clock as a FIXED(0) value.

$READCLOCK invokes the RCLK instruction, described in the

System Description

Manual for your system.

Example of $READCLOCK Function

In this example, $READCLOCK returns the current setting of the system clock:

FIXED the_time; !Declare data

the_time := $READCLOCK; !Return current clock time

$RP Function

The $RP function returns the current setting of the compiler’s internal RP counter. (RP

is the register stack pointer.)

Usage Consideration

$RP returns the compile-time setting of RP. This setting is not guaranteed to be the

run-time setting.

$RP is not portable to future software platforms.

Example of $RP Function

In this example, $RP returns the compiler’s current RP value:

IF $RP <> 7 THEN ... ; Something is on the stack

$READCLOCK

VST1439.vsd

$RP

VST1440.vsd