A number of readers kindly informed us that not all new games released for the PC work smoothly with the software we supplied for the ‘PC Interface for Nintendo Joystick’ project published in the February 2000 issue. The software update described here solves the main problem of jerky movements (or none at all).Correct operation of the Nintendo-64 joystick in combination with PC games is dependent on the synchronisation of the microcontroller with the rate of the scanning pulses that appear at the PC‘s joystick port. In order to start timely, the two instructions jnb JOYAX, * and jnb JOYAY,* are essential in the main loop.
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