In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

Okay after connecting everything, I have only 3 I/O pins left.

Does anyone know of a slick way to read an atari joystick (5 switches connected to a common) with only 3 I/O pins ?

Of course Up&Down cannot be closed at the same time (same with Left&Right).

Without any extra parts if possible (okay a resistor of two would probably fit, but NO ICs).

Bean.

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