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1 user currently in Rom Hacking:  hukka |
| Acmlm's Board - I2 Archive - Rom Hacking - N64 hack, anyone? |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1000/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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For my 1000th post, I bring you what I believe is the first N64 ROM hack ever on this board. W00t! The hack is called "Super W00ting Mario Kart 64".  It's to be applied to a US Mario Kart 64 ROM in V64 (BADC) byte order, if yours is a different format, adjust accordingly.The goods: -All players have a top speed of about 120 km/h in all modes. (I think it works in Battle Mode too, but there's no speedometer, and I get such an uber-crappy framerate I can't really tell.  -You start with 5 balloons in battle mode. (The text has been updated to show this, too.) Note that the game doesn't know how to count that right, so you'd best keep track yourself. Sometimes a balloon will fly off the wrong person, it all goes wacky, but the game plays fine and the actual counters are still right. Now, IPS patches can't handle a file this size, and I doubt many of you have RXL patchers (even I don't ), so you'll need to patch it manually in hex. (Tomorrow, or at least soon, I'll release an EXE to do it. I need sleep now, though.  )Go to these addresses in a hex editor (careful, some might not like the big file; Hex Workshop works well), and make the changes listed: 10: 98 33 BE 55 6E 6E F3 93 (Global ROM checksum. For some reason this needs to be correct.) 20: 55 53 45 50 57 52 30 30 49 54 47 4E 4B 4D 52 41 36 54 20 34 (Internal name, changed so as not to conflict with save files. Tip: It's "SUPERW00TINGMKART64 " in ABCD order. Byteflipped, that comes out as "USEPWR00ITGNKMRA6T 4".) 3C: 48 48 (Maker ID) 6C46E: 04 (Number of starting balloons, minus one) E317C: CD 43 00 00, repeated 24 times.(Top speeds) F0C30: 35 (Text) You have to make all the changes, or the checksum will be wrong and it won't work.  Have fun!BTW, the various data I found: E317C: Top Speeds for each character: 50cc, 100cc/Time Trial(?), 150cc/battle(?) 6C46E: Number of balloons you start with, 16-bit. (To find in other versions, search for "3C01801900095040002A082124080002" (ABCD byte order). The 0002 is what you want.) The text I didn't document, it's all ASCII, go find it yourself.  Also, for anyone curious, RAM address 0x80000000 appears to map to 0x75C in a PJ64 save state. States are in DCBA byte order, but RAM is ABCD. [edit] Had the wrong checksum. (edited by HyperHacker on 06-15-04 01:58 AM) (edited by HyperHacker on 06-15-04 02:02 AM) (edited by HyperHacker on 06-15-04 02:03 AM) (edited by HyperHacker on 06-15-04 02:05 AM) (edited by HyperHacker on 06-15-04 01:35 PM) |
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HammerGuy Goomba Level: 10  Posts: 16/26 EXP: 3237 For next: 1177 Since: 03-16-04 From: Fort Wayne, IN Since last post: 21 days Last activity: 11 hours |
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Congrats on your 1000th post! I'm believing this is the very first N64 Hack ever done.  Do you think this is the start of what could be new teritory (N64 Hacking)? I don't think that will be around for another 2 years. Can't wait for the Exe file to patch for I'm not real good with Hex Editors. |
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JJ64 Boo Level: 45 Posts: 347/919 EXP: 640956 For next: 19208 Since: 05-22-04 From: Green Bay, WI Since last post: 441 days Last activity: 269 days |
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| Progress is good. Eventually there could even be a Super Mario 64 hack, etc. | |||
Kitten Yiffer Purple wand Furry moderator Vivent l'exp����¯�¿�½������©rience de signalisation d'amusement, ou bien ! Level: 135 Posts: 2395/11162 EXP: 28824106 For next: 510899 Since: 03-15-04 From: Sweden Since last post: 3 hours Last activity: 4 min. |
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| Heh, yes IPS files can only handle files under 8 MB. Or at least they can only change the first 8 MB of a file I heard. I'm not surprised becuse IPS files have around since the 80's. It's old. :p | |||
Acmlm Torosu heh Level: 51  Posts: 767/1173 EXP: 981994 For next: 31944 Since: 03-15-04 From: Somewhere that isn't outside of Sherbrooke, Québec, Canada Since last post: 39 days Last activity: 3 hours |
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I thought it was 16MB, and Mario Kart 64 is 12MB  Well I tried it, but the checksum didn't work (mine is in ABCD order) ... and I'm sure I did all the changes correctly (byteswapping them), so ...  |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1002/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Doh! That checksum's wrong. I accidentally put some of the speeds at '43C0' instead of '43CD'. Try this one (BADC): 98 33 BE 55 6E 6E F3 93 *Updates other post* (FYI: If the checksum is wrong, PJ64 will give you an 'endless loop' error.) Originally posted by HammerGuy Most certainly not, but it's the first I've seen on this board since the crash. It was actually simple to do, thanks to the N64 originally being designed to use CDs (I think so, anyway). When a game runs, the code and data that's being used gets copied into RAM. (Given that it's 4MB of RAM and a 12MB ROM, I'm willing to bet just about all the code is in RAM at any given time, and resources (graphics, sound, tracks etc) are loaded as needed.) This makes it much easier to ASM hack using Gameshark codes. Codes for Super Speed and Change Starting Balloon Count already existed, so it was a simple manner of going to that RAM address without the codes on, copying about 16 bytes (something very unlikely to be found twice) and searching for it in ROM. (For top speeds, since it's not ASM and is stored different than in ROM, I just searched for the normal speed value repeated a few times. ) The text, of course, was a simple manner of searching for 'balloon', the header is right there when you open it, and I have a checksum repair program to do the hard part. )...But enough blathering. Get the auto-patch! Needs VB6 Runtimes and comdlg32.ocx, get them at microsoft.com or google, if you're us.ing XP you should already have them, yadda yadda yadda. Source code is included, and for Pete's sake, read the text file first!  |
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Craig3410 Paragoomba Level: 15 Posts: 32/76 EXP: 16178 For next: 206 Since: 03-16-04 From: Fayetteville, AR Since last post: 4 days Last activity: 4 days |
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| An N64 hack. Thank you thank you thank you. And I just looked it up; the IPS file limit is 16 MB. |
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FuSoYa Defender of Relm Level: 26  Posts: 73/255 EXP: 99529 For next: 2746 Since: 03-15-04 From: Moon Since last post: 7 days Last activity: 7 hours |
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| And even for larger files, if all the changes are below the 16 MB mark, LIPS should still be able to correctly create/apply IPS patches for it. |
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Xkeeper 2.0 Hammer Brother Again... :P Level: 49  Posts: 98/1091 EXP: 880818 For next: 3065 Since: 03-15-04 Since last post: 5 hours Last activity: 3 hours |
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| Actually, I think this is the 2nd N64 hack. I remember a text hack of OoT once... | |||
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Acmlm Torosu heh Level: 51 Posts: 768/1173 EXP: 981994 For next: 31944 Since: 03-15-04 From: Somewhere that isn't outside of Sherbrooke, Québec, Canada Since last post: 39 days Last activity: 3 hours |
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w00t, now it works, and I've had some fun with it  I messed around with the speed settings (trying values other than 43 CD 00 00), and here's some things I got ... I changed 43 to 45, and most slopes made me fly high (over walls)  Max speed = 0 ... but I could still turn around and run backwards  Now at about 15km/h ... what a great race that was     A few quick runs with 43 FF 00 00, no shortcuts   And it definitely works in battle mode, how else could I drop that far? Also, try changing 43 to C3, it'll act like you're constantly on jump arrows (like in Peach's and Donkey Kong's courses) ... you'll go fast without even holding A, and it's really hard to control |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1004/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| You got that to work? I tried a few higher values, some worked, but generally the game just crashed or it was too fast to play. (Biggest problem is that Mushrooms bring you up just past top speed, so a higher value may work but crash when you use a Mushroom.) At 15K, your time is about the time I got at normal speed. (That is, real time, using RGB Emulation mode. Averages about 5 FPS. ) C3 should make you go backward. Guess the game doesn't quite know WTF to do at that point. I guess next time I can use an IPS, then. Hehe. [edit] I'm gonna use your screenshots on my site, since I get a lot of graphic bugs on mine. (edited by HyperHacker on 06-15-04 07:20 PM) |
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Elric Chasupa  Currently Playing: You Like A Lute. Level: 40 Posts: 225/687 EXP: 440016 For next: 1293 Since: 03-15-04 From: Melniboné Since last post: 6 hours Last activity: 6 hours |
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| Sounds like fun! Especially after seeing Acmlm's screen shots! XD My problem is this: My CPU is 233 MHz, so N64 emulation is not an option.  However, I do actually have Mario Kart 64 for my N64, and I have a GameShark Pro, so I was wondering: Can this be made into a GS code I can use? Or am I outta luck? |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1008/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Sure, that's how I developed and tested it. 810F6BA4 43CD 810F797C 43CD 810F8754 43CD 810F952C 43CD 810FA304 43CD 810FB0DC 43CD 810FBEB4 43CD 810FCC8C 43CD 8106B86E 0004 |
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Elric Chasupa Currently Playing: You Like A Lute. Level: 40 Posts: 229/687 EXP: 440016 For next: 1293 Since: 03-15-04 From: Melniboné Since last post: 6 hours Last activity: 6 hours |
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| Meh. It doesn't seem to matter anymore. I think my GS died. Stupid damn thing. Thanks, though. Dunno if these will do you any good, but here's the small list of GS codes I have for MK64. Maybe you can do something with them...? Have Extra Option Open 8118ED12 FF00 Stop Timer 800DC599 0000 Lakitu Fast Drop-Off 800F6A59 0000 800F6A59 007C Cruise Control P1 800F6A2D FFFF Nearly Unpassable 8102A4AD 0010 Ultimate Speed P1 (110) D00F6915 0010 810F6A10 45FF |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61  Posts: 61/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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Originally posted by skateboarder11 Ocarina of Time: Attack of the Monkeys. Dude, that's a pretty sweet hack. Now you just need a patch . |
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Acmlm Torosu heh Level: 51 Posts: 771/1173 EXP: 981994 For next: 31944 Since: 03-15-04 From: Somewhere that isn't outside of Sherbrooke, Québec, Canada Since last post: 39 days Last activity: 3 hours |
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| I beat all 4 circuits at 150cc with the 43 FF 00 00 speed (makes it more like 300cc ), that was interesting ... some of the courses are pretty easy and I had a large lead in 1st, but others (like Choco Mountain, Banshee Boardwalk, Bowser's) were much harder because I kept falling down or running into things In Peach's, the big jump threw me all the way into the castle (or rather, near the waterfall), so I had better chances if I turned left and tried to take a shortcut (which wasn't even that great either because I landed too far) ... Wario Stadium would be pretty funny with low max speed, the jump near the end would be impossible |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1046/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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Originally posted by windwaker101Originally posted by skateboarder11 Which I would get where? |
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iamhiro1112 Armos Level: 35  Posts: 55/487 EXP: 259927 For next: 20009 Since: 03-27-04 From: sd Since last post: 18 days Last activity: 7 days |
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| Since this form of hacking could be considered a rom hack will anyone make some kind of Rom patching utility and perhaps a gameshark code inserter? I used to be good at gs code hacking and I could be among people who could create these new form of hacks. |
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Schnauzer Paratroopa Level: 21  Posts: 42/148 EXP: 43345 For next: 6598 Since: 04-02-04 From: Bucaramanga (Colombia) Since last post: 11 days Last activity: 11 days |
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| This topic remember me the APRIL FOOL'S DAY. AGRRRR! |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 1110/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Yeah, except this one's real. |
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| Acmlm's Board - I2 Archive - Rom Hacking - N64 hack, anyone? |
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