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majax79 Offline OP
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There's a glitch on level 2 which makes indiana fall through the floor. Also, the screen shakes while he climbs down a ladder. I searched on the forum and found a post about this issue from 3/08.

I was just wondering if anyone figured out what the problem was? I tried fceux and nestopia and both had the same results. I've also tried about 3 different roms. The hardware game doesn't do this.

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$ md5sum Young\ Indiana\ Jones\ Chronicles\,\ The\ \(USA\).nes
ca90891fa082efc5d9922f1b9e0e10af Young Indiana Jones Chronicles, The (USA).nes

Try making sure the ROM image you got is good.

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majax79 Offline OP
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Thanks for the advice. What's that:
$ md5sum Young\ Indiana\ Jones\ Chronicles\,\ The\ \(USA\).nes
ca90891fa082efc5d9922f1b9e0e10af Young Indiana Jones Chronicles, The (USA).nes

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it is the checksum of the cart. if your ROM image has a different MD5 checksum it's probably a bad dump and that would be the reason of the bug

http://en.wikipedia.org/wiki/Checksum

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majax79 Offline OP
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Can you tell me what program I can use to determine the checksum?

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md5sum, for one. If you use Linux, Mac OS X, or similar (may be called plain "md5" instead of md5sum), you probably already have one installed. If you use Windows, use something like this: http://downloads.activestate.com/contrib/md5sum/Windows/

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http://rehash.sourceforge.net

Rehash is what I use for computing anything that I might need and supports nearly 2 dozen different algorithms! Command-line driven, though..





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majax79 Offline OP
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Ok, I used wxchecksums and the rom image is good.

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Wow, this thread is full of all kinds of insanity. Why do people think making an MD5 checksum of a file means the file is "good or bad"? It all depends on what you're comparing against. There is no centralised source of truth for what makes a "good" or "bad" ROM image -- the GoodNES set is an attempt to do that, but it falls short. It's probably your best bet for comparison though.

Are you *absolutely certain* these problems don't happen on a real NES with the actual cartridge? It's the only way to be sure.

Re: climbing down a ladder: I can't reproduce this. I've made a video (requires XviD codec), ~2.3MB:

http://www.malkavian.com/~jdc/indiana_ladder.XviD.avi

"Glitch on level 2 which makes Indiana fall through the floor" requires further information. Can you explain how to reproduce it? I can't even get to level 2 in this game (too lazy), so if you could put up a savestate somewhere, I'll take a peek. :-)

Last edited by koitsu; 09/27/08 07:32 AM.

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