Discovery (CRL)

Kempston Joystick is automatically enabled on start, to change this use these POKEs by Slider.

Control:
50885,n (before start)
1 - p,l,z,x,0
2 - kempston
3 - cursor
4 - sinclair 1,2,3,4,5 

More info here:

https://www.worldofspectrum.org/forums/discussion/45820/discovery-crl/p1