Incrementing memory does not pipeline, you have to crack that instruction into separate load, and add and save. Doing this can cause a seven cycle bubble or worse and means you have to track two instructions in case of interrupt, etc. Two separate instructions is faster and simpler to deal with on a ...

RE> I've thought about this some, and come to the conclusion that a 32 bit proc. would be somewhat different than the '02 because it's too expensive to waste 32 bit for an 8 bit opcode. I'm assuming the biggest factor for wanting a 32 bit 6502 is the extended address range and more ops. It can't be ...