Originally posted by BMF54123
Originally posted by Aeonic Butterfly
I'm a little leery on Game Genie codes, since they can manipulate the game any way they want, and using them to do funky effects has been around since the 90's. Not necessarily everything revealed by them is unused, as some codes can make it seem like the ROM is corrupted, certainly not an intended feature.
Yeah, I am 100% sure the codes he posted are not activating debugging features, as I did a complete code/data log of the game and didn't find any interesting routines (aside from some old demo recording code). They're still kinda neat, though.
Originally posted by Aeonic Butterfly
This is relatively minor: a few years ago, I was playing around with a tile editor and Super Mario Bros. I think the waveforms are stored as plain graphics, as I edited one and it changed the sound of one of the pulse channels. Is this well known and I'm slow?
Uhh...I know the brick-breaking sound is somehow tied to the title screen data stored in CHR ROM, but I'm not aware of any tiles that affect the pulse channels. Do you remember which ones you edited?
Nope, this was years ago. I still have the OGG recordings from that experiment, at least. Somewhere. I'll go look into it shortly.
Edit: I found it. It took me a bit, but then I remembered it was just near Mario's tiles. I'll upload a picture to the one I edited. It seems to only affect the sound when using the green part of the pallet; no other colors seem to affect it. It isn't stored as a waveform that I recognize, but this is of interest, anyways XD;; Unless someone wants to explain to me what happened.
Also, editing the tiles to the left of that one seem to affect sound, as well. The one directly left still messes with the Pulse, I think the first Pulse, and the second to the left seems to make the sound skip. Maybe not waveforms, again, just.
http://img838.imageshack.us/img838/152/smbshot1.jpg
Specifically, Green seems to affect the arping on the Pulse channels, Blue the Duty. I think I figured out what this button does.
Basically, you can edit all from the one two to the left of the tile I outlined in that pic, and up to the last two before Mario's head appears. Editing the last two seems to cause a CPU crash, so yeah, don't do that.
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