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I can get the HI/LO (joypad) interrupt to work. Ideas ?

April 26, 2017ideas interrupt joypad LO

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I can get the HI/LO (joypad) interrupt to work. Ideas ?

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You must set the P1 register ($ff00) in order to do this: P1_REG = $20 ; Cause U,D,L,R to joypad interrupt P1_REG = $10 ; Cause A,B,SELECT,START to joypad interrupt P1_REG = $00 ; Cause any button to joypad interrupt After calling any function which reads the joypad you will need to reset this register since most of these functions set this register to $30 upon completion.