29/5/2000	- changed keys, implemented 2P keys.
		- implemented switch between keypads (CONSOL).

Some 2-pl games working, Pengo 2nd player works fine.

30/5/2000	- implemented cart sig detect for 16k carts

Moon Patrol (unmodified) and Starwars now working.

31/5/2000	- implement detect for Space Shuttle
		- optimised PF gfx a bit.

Space Shuttle working.

1/6/2000	- 2 hour bughunt to get pitfall 2 working
		- traced to bug in mode 4 vert scroll
		
Pitfall 2 & Xevious now working!!! Megamania runs further!

2/6/2000	- fixed mode 5 vert scroll (Countermeasure)


12/7/2000	- fixed "sprite wraparound" bug
                  (Space Invaders, Missile Command, Moon Patrol)