Atari 65XE Owner's Manual page 104

STOP STO.
STR$
THEN
TO
TRAP T.
USR
VAL
XIO X.
Causes the program to stop but does
not close files or turn off sounds.
Returns a character string equal to
the numeric value given. (For
example, STR$(65) returns 65 as a
string.)
Used with IF. If the expression is
true, the THEN statements are
executed. If the expression is false,
control passes to the next line.
Used with FOR, as in "FOR X = 1
TO 10." Separates the loop range
expressions.
Takes control of the program in case
of an INPUT error and directs
execution to a specified line number.
Returns the results of a machine-
language subroutine.
Returns the equivalent numeric value
of a string.
Used with disk operations (see DOS
manual) and in graphics work.
Functions as a general I/O statement.
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