[chesterbr]

Heh, my current struggle is precisely trying to have tiles with different colors for each value (my last attempt fell 2 cycles short of achieving it). David Crane's DPC chip is indeed impressive (like pretty much everything he did on the Atari), and would at least free one register and shave enough to allow it, but I'd like to do that with "standard" Atari hardware. Thanks for the suggestion anyway!