Oh yeah, that's right, we can get the PLAs from that pic.
With the top metal view, there's so little contrast between the 1s and 0s in the ROM array that my program can't differentiate them, though. That pic is so clear that with a program could look across each row and column and pick out the bits, but it would be a lot easier with the metal layer removed.
I picked up a TI55 that has the same chip, part # TMC1503.
