SS.Joy Get Status

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Returns the joystick values.

Entry Conditions
A path number
B SS.Joy ($13)
X joystick number
  0 = right joystick
  1 = left joystick
Exit Conditions
A fire button down
  0 = none
  1 = Button 1
  2 = Button 2
  3 = Button 1 and Button 2
X selected joystick x value (0-63)
Y selected joystick y value (0-63)
Note: Under Level 1, the following values are returned by this call:
A fire button status
  $FF = fire button is on
  $00 = fire button is off