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joystick

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Joystick is an input device, which normally is connected to a socket in the back of the soundcard.

It is like video-games joysticks, and normally have a Directional Button or a manche used to define the direction, and a certain number of buttons, normally 2, 4 or 6.

It´s accessed normally throught:

INTERRUPT 15h
PORT 200h
[ASM]
--INTERRUPT--
INT 15h
--PORT--
MOV DX,200h
IN AL,DX

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