nesdev.org

At this point I have a workaround that is acceptable to me. Jumpering 58+57 with a switch that runs out the GG.

Left on it can bug out carts that take advantage of that, otherwise allows the GG screen to be seen.

Well, It seems my older Gold GG is busted, but my newer black GG seems fine... ...Then I cracked it open to discover a single glop top...this is going to be tricky... I've already found out that it's the PPU /A13 and VRAM /CE that are getting hijacked by the problem carts; Jumpering pins 57 and 58 a...

Never though I'd be rickrolled in a NES demo...seesh...runs very clean, I likes.

It's not a copy protection check I'm trying to combat...I'm simply looking to get the graphics for the game genie to display properly with MMC5 and 4-Screen titles. Apparently the MMC5 forces a blank screen during the Game Genie's menu. I'd assume the MMC5 is hijacking the GFX data by default, which...

Hi guys, long time no chat...More-or-less recently I've been filling blanks in the perpetual game genie master code list. Mostly I've been doing easy stuff for "Impossible" games using dissasemblers and sophisticated debuggers like the emulator FCEUXD SP. Now for the specifics...I've ran m...

My switch is sucessfull most of the time, it's a dated switch (from an old A/B select from some wireless crap that didn't work anyways), so it crosses paths inbetween switches, and that will lock it up somtimes.

Wow, I didn't expect the author of that guide to reply, lol. The crystal runs at 28.224MHz (which /12=2.352MHz). Like I said, the only actual oscillator I have runs at 48MHz, and even though that worked, most games locked up with timing errors, irq lockouts, etc., although I was suprised that mario ...

Nice. If that goes into mass production...

"I gotta gets me one a deez."

"Menu Only" multicart roms Most of these are dumped this way because all the games they contained were either already dumped or they were based on existing dumps, right? ...how many of them actually banked 1 8K segment mirrored 4 times and not 1 32K segment mirrored in rom? ...Just ponder...

If one were to extract the Tetris rom solely from the NWC cart/rom and play it alone, what would the value be then? You are dirty pirate if you think this is an nes file, but this is just an ips, so ha! Great Scott! The same pattern...every time. No really, try for yourself. It patches against The ...

Ah, that'd explain the seed predictability. Didn't even think of the title screen wait.

Love the title screen...just puttin' that out...got it to work just fine.

I thought that'd be kinda fishy...I manipulate the call into the ordered set to always retreive (what is apparently the next piece) as 0x12, which equates to a straigh piece (laid horizontally). Here's The Routines: Tetris: $988E:A5 49 LDA $0049 = #$20 $9890:C9 20 CMP #$20 $9892:30 56 BMI $98EA $989...

Ah...I've noticed that the heat from the MMC3C is almost nonexistent, it also has a similar case with the same "anti-flat" surface (probably has some fancy name...) that was used with the MMC6's.

Shouldn't those vectors start at $9ffa or $fffa instead of $9ff8 or $fff8? Yes, they should, thanks for noticing...I add a bit of text before my vector arrangement, so it's always like $xxxx-x for text. I need the labels from different banbks to be avaliable to the hardwired bank. For the labels, t...