Is there a dump of the NTF2 cart pictured here?
http://videogamecollectors.com/gallery/album52/nes_test_carts
Anyone know how useful it is for emulator verification purposes?
I've got a dump of one and it doesn't seem to do much beyond a RAM and VRAM test, OBJ test, and controller test. Its main purpose is probably to find failures of the hardware rather than test the accuracy of the NES. Testing memory and joypads targets the most likely areas.
Is that the one with b, d, p, q?
I would expect that any test carts made would have been made to test for failed components as opposed to hardware accuracy.
I dumped and released the NTF2 cart a while back as a part of a ROM pack (most of the other stuff was bootlegs with title screen hacks). It's not much different than the old TEST.NES that Marat was distributing with iNES for a long time (which was dumped from a different Nintendo test cart), although some of the tests have changed. Interestingly, although the cart shown in the photo someone linked to is not mine, my NTF2 also has some missing ink from the label design. This must have been a manufacturing flaw with the lot of them.