circle
circle draws a circle in the current drawing color.
Gets: OnStack: X, Y - Center point of the circle
radius - Radius of the circle
Returns: On r0: 0 on success, -1 on failure
circle draws a circle in the current drawing color.
Gets: OnStack: X, Y - Center point of the circle
radius - Radius of the circle
Returns: On r0: 0 on success, -1 on failure