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| Acmlm's Board - I3 Archive - - Posts by Kailieann |
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Kailieann                  Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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Originally posted by Kailieann |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| It should be just a matter of changing the sprite number it loads. I'd wager you'd only have to change one offset in the .bin file.
As for which, that I can't help with. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| .. can't you just use your hex editor to compare the original and patched roms to see where the music was added? | |||
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| Okay, you're going to need Lunar Address for this.
Now, here's the cliff notes. Say you wrote up some custom code, and wanted to put it into the rom. First you'd need to find some free space in the rom. That's not too difficult, all you have to do is look for a bunch of 00s or FFs. Now, let's say you found some blank space in the rom at hex offset x45A10 (it won't actually be blank, but we can pretend). You would paste your code in at that offset (make sure it ends with an RTL), then open Lunar Address. Set the ROM type to the first option (LoROM - PC), and check the PC on Left Side option. Then type 45A10 in the PC File Address box, and it will give you the SNES address $08: D810. This is the address you'll be jumping to. Now you go to the place in the code where you want to jump from, and put JSL 10D808 (remember the proper byte order). Ta dah, there's the basics for a proper jump. (edited by Kailieann on 12-07-05 07:45 AM) |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| The cutscenes are a largely unexplored part of SMW hacking, I doubt anyone has anything useful.
If, like me, you're not good at ASM tracing, you can try looking for a ram address that tells whether or not the game is in cutscene mode (should be reasonably easy with ZSNES's cheat search on compare mode), then just changing your code so that it checks that ram address first and branches past the slippery code if a movie is playing. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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*sighs*
Originally posted by Kailieann Originally posted by Kailieann Originally posted by Kailieann Originally posted by Kailieann Next time try actually reading the post. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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Originally posted by Stifu *points at the sixth post in the thread* I'm supposed to be working on a rom offset database, but that would require effort. <EDIT> Something just occurred to me. Could you make it so that it checks Mario's position relative to the screen's position so that it starts scrolling if Mario gets too close to the top, instead of just following him around all the time? Obviously that would take more effort, but I think it would be a nice compromise. (edited by Kailieann on 12-11-05 11:59 AM) (edited by Kailieann on 12-11-05 01:12 PM) |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| *eye twitch* Why is it that I'm the only one whose computer won't run MWR? | |||
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| Yeah, that helps.
It would help more if MWR could be more specific than "System Error &H8007007e (-2147024770). The specified module could not be found." |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| For the hack I'm presently designing, I hope to bypass the powerup system altogether and implement a rudimentary HP system.
Though, to be fair, when (if) I finish, it won't be a Mario game anymore.. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| Unfortunately I can't help with the problem at hand.
However, the reason you only see SMW related threads is because this used to be the Advanced SMW Hacking forum. XKeeper changed it to Advanced ROM Hacking last night. Perhaps someone should rename the threads to indicate which game they refer to. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| 90 and 80 aren't values, they're branch statements. Specifically, 90 is BCC (Branch if Carry Clear or Branch if Less Than) and 80 is BRA (Branch Always).
The way the normal of code works is, it checks Mario's speed. If he's running (greater than), the branch statement won't activate and Mario will do a running jump, and if he's not jumping (less than), the branch statement will activate, skipping past the running jump and doing a normal jump instead. Changing the BCC to BRA makes it so that the branch statement always activates, regardless of Mario's speed. The result being that Mario always does a normal jump, even if he's running. The reason this disables the flight ability is because Mario needs to do a running jump in order to fly. The problem with this is that having Mario running at full tilt and then going into a normal jump just looks silly. Either way, it's possible to add more conditions to the code -- I'd had plans for a hack where the running jump would only activate once Mario passed a certain level -- but you'd need to write up a custom subroutine for it. Of course, if you're capable of doing that, then it shouldn't be too difficult to set up a flight-controlling ram value of some sort that can be changed dynamically within a level. As for the HP system, it wouldn't really be an HP system. It would just be a collection of minor changes, and I'm not entirely sure if it would be worth the effort. Still, if I decided to go for it, here's how I would set it up: 1. The only powerup available is the "Mushroom" 2. "Mario's" big graphics are always used, regardless of his powerup status 3. When hit, the reserve item is automatically written to "Mario's" powerup status instead of floating down from the status bar 4. The reserve item is automatically cleared if "Mario" dies from something other than an enemy 5. Select is disabled 6. The reserve item box is hidden and an HP display is shown instead: 1 HP = no powerup, no reserve item 2 HP = "Mushroom", no resserve item 3 HP = "Mushroom", reserve "Mushroom" Granted, it's not the most efficient setup possible. The reason I thought it would be best to do it this way is because it would use most of the game's original code instead of having to come up with a completely new set of subroutines. (edited by Kailieann on 12-10-05 11:31 AM) |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| 1. If you have no rom addresses to contribute in the first place, then this thread is pointless.
2. You have been told dozens of times, by numerous people, to stop capitalizing every word. Come back when you have something to contribute. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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Originally posted by ghettoyouth No effect. Originally posted by andres Then why are you in advanced rom hacking? The whole point of this thread is about changing ASM pointers. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| In other words, you don't know what you're doing, and you want other people to do all the work so you don't have to learn the hard way.
Am I getting warm? |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| Obviously you're never going to get any useful information if you don't know how.
And you're never going to learn how if you don't try. The first thing you need is patience. You're not going to be able to make an awesome hack overnight. The second thing you need is to do things yourself. You want to find a ROM address? Open your rom in a hex editor, change something, and see what happens. You're never going to get anywhere unless you learn to do these things, and noone's going to bother helping you unless you can demonstrate some level of competence. And being 15 is no excuse for anything. Things like proper grammar, spelling, and capitalization are taught in grade 2, not grade 12. As a sidenote, I came to this forum two months ago. In that time, I have not released a single demo, screenshot, or anything of any hack, because I have nothing to release. I have not so much as designed a single, playable level, and all the levels I have done were purely for experimental purposes. You see, instead of trying to get other people to do all the work for me, I've been learning how to do the work myself. It's a very boring process, reading manuals and helpfiles, digging through several pages of the archive. But in the space of two months, I've gone from knowing absolutely nothing about assembly to having a fair working knowledge of most of its functions, both in terms of what they do within the program, and how they do it with the processor. I've got a decent grasp of how to make custom blocks, and my need for them has decreased as my proficiency with LevelASM increases. I know how SNES ROM banks work. As such, I can create my own custom subroutines without interfering with the game's original code. I can also debug other peoples' code that I find here and there, in case it proves incompatible with my own. I've learned how to create HDMA effects, I can convert standard RGB color codes into SNES colors in my head, and I can trace RAM addresses with my eyes closed. How did I get so good in only two months? I actually tried. In conclusion: Stop dicking around and start studying. Learning how to do something yourself is boring, but unlike asking other people to do everything for you, it actually works. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| Okay. Next time, say that first.
Then you have to do it manually. That's not too hard. Just set your windows calculator to hex mode (all numbers shown are hexadecimal) ROM address = 11A6F0 -200 byte header = 11A4F0 SNES bank: 11A4F0/8000 = 23 Note that the calculator doesn't support decimals in hex mode, so it automatically rounds down. Start of bank 23: 23 * 8000 = 118000 Bank address: 11A4F0 - 118000 + 8000 = A4F0 So, as my previous post showed, the SNES address is $23:A4F0 And, of course, Jump statements use reverse byte order, so the jump address becomes F0A423 And, to recap, here is how you convert from a ROM offset to an SNES address: Most SNES ROMs have a 200 byte header. So, first you take the ROM address and subtract 200 SNES code is divided into 8000 byte banks. To find the bank number, divide the no-header address by 8000. Finding the address of the code within the bank is a three-step process. Step 1: Find the start of the bank (bank number times 8000) Step 2: Find the offset of the code relative to the start of the bank (no-header address minus step 1) Step 3: Add 8000. The actual game code is in the 8000-FFFF range within each bank. The purpose of the 0000-7FFF bank is a discussion that belongs in the advanced forum. With this, you should be able to convert any address you need in the future. And if you're half-decent with any programming/scripting languages, you should be able to whip up a replacement for LA without too much difficulty. I may make a PHP-based address converter myself sometime. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| It would be easier if LM installed all its hacks at once. That way all LM-ified roms would be compatible to an extent.
Instead, it just installs all these little hacks, one at a time, a lot of which most people don't even know about, so there's no way to guarantee that everyone's roms will be the same. For this reason, it's a better idea to distribute patches for unmodified roms. That way it's pretty much guaranteed to work. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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Originally posted by mariofan05 So make a backup. If you're serious about hacking, you have to face the fact that sooner or later, you're going to royally screw something up. Make a backup, and if you screw up, start over again. |
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Kailieann Since: 11-18-05 Last post: 5909 days Last view: 5909 days |
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| That isn't necessary. BMF made a patch to fix the problem.
Unfortunately, I can't seem to find it on his site, so I'll just put it on mine for now. (link) |
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| Acmlm's Board - I3 Archive - - Posts by Kailieann |
