In the end the neo is just a more powerful sega genesis. A SMS or SG, even a snes copier runs off the same basics. Where things get more difficult is the software. In the link you showed me the guy who wrote it limited it to only read games upto the max he knows. Neo games go way beyond that but the design is sound and would work. Next issue is a neo cart when compaired to a SMS or snes, gen, tgx or any rom cart is that a neo is split into several sections. Normally a rom cart is one chip, a neo has one for M, S, sound, program and gfx.
If you took that software and removed the limiting factor so it would read as much as it found and then made 5 readers so the software would read them one by one, it would work.
So you make 5 readers - 1) Program, 2) Sound, 3) Gfx, 4) M1, 5) S1 - all of them on one board. Then you run them into logic like a 4 or 6 slot does with the enable pin controlled manually or controlled by the pc program (more on that in a moment). From the logic you would run them into the cart slots. Load up the software and it would just read one bank at a time, it wouldn't know the difference between 1 neo cart vs reading 5 snes games in volume.
To make one that everyone would love to use would all be controlled by sw, just pop in the cart and rip it. If you wanted to make one without complex hardware or software you use a manual switch. Switch it to program, rip it and name it as Px, switch it to sound, rip it and save it as Vx....until you have them all.
That asshole in the forums that was all over my post is right and wrong at the same time. Sram carts do draw a lot of power and trying to run one with a coin battery wouldn't work well. But at the same time we don't care to hold the cart data forever since we can reload it within mins. We could use the mvs as a model and use a much larger rechargable battery which would hold the rom for a good hour or two which is more then enough time to move it from a pc to any system. Once on the cart would recharge the battery. Not a big deal.
It's possible, not easy but possible. Now would anyone pay the price to get one when the 150 and 160-in-1 carts are so cheap?
