bit 5 (value 32)	fire2 pressed
bit 6 (value 64)	fire3 pressed
bit 7 (value 128)	fire4 pressed

For example:

INPUT 1 & 8	returns false (0) if up is not pressed on joystick 1, true (8 is non-zero) if it is
INPUT 0 & @11110000	returns false (0) if no fire buttons are pressed on joystick 0, true (non-zero) if at least one is

The default *keyboard joystick* is set up to use the following keys:

up	Q
down	A
left	O
right	P
fire	SPACE
fire2	M
fire3	ENTER
fire4	X

The *keyboard joystick* may be redefined with the **INPUT** function by if negative values are specified for *n*, as follows:

INPUT -1	waits for a key to be pressed and assigns to right
INPUT -2	waits for a key to be pressed and assigns to left
INPUT -3	waits for a key to be pressed and assigns to down
INPUT -4	waits for a key to be pressed and assigns to up
INPUT -5	waits for a key to be pressed and assigns to fire
INPUT -6	waits for a key to be pressed and assigns to fire2
INPUT -7	waits for a key to be pressed and assigns to fire3
INPUT -8	waits for a key to be pressed and assigns to fire4
INPUT -9	(or any other negative value) clears all assignments

The return value is the character code of the key pressed, which can be useful if you want to display the key just defined (although some special keys have codes below ASCII 32 which aren't **PRINT**able, so care should be taken). Here's an example on how to set up the keyboard joystick. Note that we cannot use **INPUT** to print on the screen so separate **PRINT** statements are needed! ``` 100 x=INPUT -9: 110 ;clear the "keyboard joystick" 120 PRINT "Press a key for right" 130 x=INPUT -1 140 PRINT "Press a key for left" 150 x=INPUT -2 160 PRINT "Press a key for down" 170 x=INPUT -3 180 PRINT "Press a key for up" 190 x=INPUT -4 200 PRINT "Press a key for fire" 210 x=INPUT -5 220 REM Can leave additional fire buttons undefined if they aren't needed ```