AT&T 6300 Programmer's Manual page 170

Introduction
SPC
SQR
STICK
STOP
STRIG
STRIG(n)
STR$
STRING$
SWAP
SYSTEM
TAB
TAN
TIME$
TIMER
7-14
Skips "n" spaces in a PRINT, LPRINT, or
PRINT# statement.
Returns the square root of a positive expression.
Returns the x and y coordinates of two joysticks.
Terminates program execution and returns.
Returns the status of the joystick buttons
(triggers).
Enables and disables trapping of the joystick
buttons.
Returns the string representation of the value of
a specified numeric expression.
Returns a string of specified length whose
characters all have the same ASCII code or equal
the first character of a given string.
Exchanges the values of two variables.
Closes all open data files and returns to MS-DOS.
Tabs the cursor or the printhead to a specified
position in PRINT, LPRINT or PRINT#
statements.
Returns the tangent of the argument.
The TIME$ statement sets the current time. The
TIME$ function retrieves the current time.
Returns a single precision number indicating the
seconds that have elapsed since midnight or
system reset.