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Main - ROM Hacking - Dungeon Locations in Legend of Zelda NES New thread | New reply


Nintendude88
Posted on 10-10-10 02:29 AM Link | Quote | ID: 136621


Shyguy
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Hi all,

I'm having a problem changing the dungeon locations when Link uses the Recorder to warp to the entrance of the nine dungeons randomly. See, I changed the locations using Zelda Tech, now I need to know how I can match the warping to the correct screen where each dungeon is.

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Trelior
Posted on 10-10-10 05:24 AM Link | Quote | ID: 136625


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Have you tried looking at documentation on the game, or is stuff like the flute undocumented yet?

The only thing I can think to tell you is to watch the RAM addresses in the hex editor when you warp, then find the ROM addresses for the outputs and change them.

Nintendude88
Posted on 10-11-10 03:15 PM Link | Quote | ID: 136659


Shyguy
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Posted by Trelior
Have you tried looking at documentation on the game, or is stuff like the flute undocumented yet?

The only thing I can think to tell you is to watch the RAM addresses in the hex editor when you warp, then find the ROM addresses for the outputs and change them.


I have looked at documentations on this game and check the ROM map on Data Crystal. I didn't see anything. Unless, there are some more documentations on this game that I haven't check or don't know about.

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Trax
Posted on 10-12-10 06:50 AM Link | Quote | ID: 136680


Yellow Stalfos
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Then go on with your search, until you find it. Seems simple enough...

NetSplit
Posted on 10-13-10 10:34 AM Link | Quote | ID: 136778


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This one's been a problem for people for a long time, so I went ahead and figured it out just now.

In a headered ROM, the warp locations are stored at $6020. There are 8 of them, ordered by dungeon number. These locations are all one less than the place they drop you off in-game, likely because of the rightward scroll that occurs to bring that screen onscreen. If you want it to warp you to screen #$3C, you use #$3B. If you want it to warp you to screen #$00, you use #$FF. And so on.

The y locations of where it drops you off are at $6129. Again, there are 8 of them. I point this out because there is code immediately following this 8-byte table that starts with the opcode #$AD, which looks suspiciously like the values in the table. Don't change that byte. This table is just like the table for warp locations, except that the values are the actual y values. I recommend only fiddling with the first half of each byte, which specifies which row you'll be dropped off in, leaving the second half as D.

Also, in general, this is the one document you need when hacking this game.

Hope that all helps!

Nintendude88
Posted on 10-13-10 07:22 PM Link | Quote | ID: 136783


Shyguy
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Thanks for the help NetSplit, I really appreciate what you have done.

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Main - ROM Hacking - Dungeon Locations in Legend of Zelda NES New thread | New reply

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