Posts by one-off hacker

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05-07-24 08:11 AM

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one-off hacker

Posted on 07-27-10 06:48 PM, in General SMB3 Hacking Thread

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Hi there, I'm working on a project that's not a ROM Hack but needs some information that I just can't find. I've looked through several ROM Maps and RAM Maps for SMB3 and all sorts of documentation, but I've still had no luck.

Provided I'm playing a ROM of SMB3, where can I find the following information?

1) Which levels have been completed in the current world in the current game. Obviously this information is held in RAM somewhere, because when you die or beat a level, you go back to the world map, and it still has a record of the levels you've beaten / mushroom houses you've visited / etc. I'm assuming the game doesn't hold all the world map data in RAM while simultaneously holding the current level data in RAM, right?

2) Which level I'm currently in. Obviously the level data is held in the ROM, and the active level data is held in the RAM. I've found the current world in RAM. I've found the current position in a given level held in the RAM. What I can't find is any kind of pointer or value in RAM that I could use to determine the current level. I just need to know where the value is stored, I can reverse engineer how given values relate to give levels myself.

3) The return coordinates for the world map. Like, I'm in a level, and I die. I am returned to the last completed level or the start of the world. Where are the coordinates stored in RAM so that the game knows where to return me to? Does the game store coordinates, or just a pointer to the last completed level in the ROM, which in turn is used to determine the coordinates?

If anyone has any information about any of these three things, I'd really appreciate it.

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