+ arnegame => [ 0,3,10,6,12,9,13,1 , 5,7,11,8,14,4,15,2 ],
+ c64 => [ 0,2,5,9,6,4,3,15 , 11,10,13,7,14,8,12,1 ],
+ msx2 => [ 0,6,2,10,4,13,7,14 , 1,8,3,11,5,9,12,15 ],
+ risc => [ 7,11,13,14,8,12,15,1, 6,5,10,9,4,3,2,0],
+ mac2 => [ 15,3,9,11,6,5,7,12 , 14,2,8,1,13,4,10,0 ],