Changes
/* Technical information */
== Technical information ==
Port &F990 : 0321RLDU : Input A, joystick and buttons
Port &F991 : 0321RLDU : Input B, joystick and buttons
Port &F992 : 0000XXXX : Input A, mouse X
Port &F993 : 0000YYYY : Input A, mouse Y
Port &F994 : 0000XXXX : Input B, mouse X
Port &F995 : 0000YYYY : Input B, mouse Y
