Apple IIe - Page 133

Apple BASIC Reference Guide 133
• Applesoft
POL
• Integer
The PDL function returns the value of one of the four different
game controllers (paddles).
Configuration
PDL (argument)
argument is a numeric constant or numeric expression. The
numeric constant must be an integer in Integer BASIC. The value
of the argument must lie between 0 and 255. The value of the
argument corresponds to the game controller. For example, X =
PDL(O) returns the position of game controller number zero. The
number returned will be beteen 0 and 255.
If the value of the argument is between 4 and 255, the PDL
function will return an unpredictable number. Using an
argument between 4 and 255 can also produce unwanted side
effects
which affect program execution.
PEEK
Example
PRINT PDL(O)
120
• Applesoft
• Integer
The PEEK function returns the contents of the memory address
given in
the argument.
Configuration
PEEK (argument)