| Basic mouse control

| Move stick without the fire button held
| down to move the mouse pointer

| Hold down the fire button and nudge the stick
| left/down/right to click the left/middle/right
| buttons

|---------------------------------------------------

| Move the mouse pointer
right_pointer_4 = right_1.~fire_1
left_pointer_4  = left_1.~fire_1
down_pointer_4  = down_1.~fire_1
up_pointer_4    = up_1.~fire_1

| Activate the mouse buttons
left_button   = left_1  . fire_1
middle_button = down_1  . fire_1
right_button  = right_1 . fire_1
