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I need to fix mine.

Also, no firmware issues on GP2X, unlike the didly crap you have to go through to get a PSP to boot anything.

Nice, thanks Neil. OK then, I'll design my cart with extra PRG ROM space and I can just pad it out for now. And, just so you know, I was going to spend money on some MMC1 dev carts anyways, so what the heck, right? I think that since you're shooting for more than 128kbit of PRG space sometime down the line I'll just plan on modding an SNROM cart and just dealing with the WRAM to CHR ROM conversion anyway, since an SKROM can't do bigger than 128kbit PRG ROM.

Of course, you could just get really crazy and change the mapper entirely... which I wouldn't mind. Do what you need to do. I only asked because I happen to have an MMC1 in the works here, and wanted to make sure I could accommodate your code as long as I'm at it.

EDIT: HMM... looking at the hardware, it seems to me that getting more than 128kbit in PRG ROM on an MMC1 is going to require a) using CHR RAM or b) omitting SRAM, at least on a real cartridge. I think maybe the repropacks can do it, but I can't find any original NES hardware which can actually give you more than 128kbit in PRG ROM without stealing CHR space in order to do it.

Yus. I went a picked up a couple of MMC1 carts of various configurations for hacking. SNROM board is looking the most promising. In the mean time, I'll be able to run a translated copy of Sweet Home on it.

EDIT: Ick. SNROM is going to be a pain. Time to track down a SKROM board.

So, Neil, tell me if this is right:

You need 128k of PRG ROM, 64k CHR ROM, 8k SRAM, and an MMC1, right? Not CHR RAM, correct?

EDIT2: found some possible donor carts, now to track some down. (crappy) games like:

Al Unser Racing
Baseball Simulator 1000
Baseball Stars
Faria
Ghost Lion
Heroes of the Lance
Pirates

Also, I believe most of the Ultima games would work... need to check that.

Is this the MMC1 with the battery backup? Thanks!

EDIT: read the header again, now I know. D'oh!

Cricket- got pics? Or better yet, circuit diagrams?

Depends on where you look. On ePay you'll find them for the $20-$120 range depending on model and options. A stock ROM 01 IIgs with no drives or anything is probably one of the cheapest options for entry level.

Ultimately though, if you're in the market for a II, you should be checking forums and Craigslist for the deals. Like the Vintage Computer Forums. Here is my rough estimate of pricing/usefulness for the Apple II line.

Apple II: ($100+, not very useful)
Apple II+ ($100+, slightly more useful, limited RAM)
Apple IIe ($20+, pretty decent for 8 bit software)
Apple IIc ($30+, portable, but not expandable)
Apple IIgs ($10+, price varies wildly based on upgrades, most powerful)

Apple III ($???, really rare, not really suited for music)