Darkaiser | Crash Team Racing - Code Rewrite Progress (30%) @Darkaiser | Uploaded April 2023 | Updated October 2024, 1 hour ago.
The research team has now rewritten over 360 out of 1200 functions in CTR, 30% of the way to a full rewrite and a PC port, after documenting how almost 100% of the game's functionality.
[Update] Thank you to everyone who tested in the last 24 hours, here's a new XDELTA that should fix all the bugs you found in the comments section. Every minute of testing is a great way to support the project! Try this XDELTA to see if all the bugs are fixed.
mediafire.com/file/iqen1l6856liykx/ctr-u_decompile_May1_4am.xdelta/file
Note: Works on NTSC-U SCUS 944.26 only.
Most recent progress since the last decompile update, was done by Niko, Redhot, Super, and Faradise, the same four members of the team that did Widescreen. The two projects co-evolved, since a lot of the newest decomp progress was a prerequisite for widescreen to be built.
In this video we show off a small amount of the code, no commentary, just overview. Full source code can be found at our github repository
30% rewrite
github.com/CTR-tools/CTR-ModSDK/tree/main/decompile/General
97% documented functionality
github.com/CTR-tools/CTR-ModSDK/tree/main/ghidra
Spread the word far and wide, on every website, on every social media, tell everyone that the PC port of CTR is on it's way!
Stay tuned for more.
The research team has now rewritten over 360 out of 1200 functions in CTR, 30% of the way to a full rewrite and a PC port, after documenting how almost 100% of the game's functionality.
[Update] Thank you to everyone who tested in the last 24 hours, here's a new XDELTA that should fix all the bugs you found in the comments section. Every minute of testing is a great way to support the project! Try this XDELTA to see if all the bugs are fixed.
mediafire.com/file/iqen1l6856liykx/ctr-u_decompile_May1_4am.xdelta/file
Note: Works on NTSC-U SCUS 944.26 only.
Most recent progress since the last decompile update, was done by Niko, Redhot, Super, and Faradise, the same four members of the team that did Widescreen. The two projects co-evolved, since a lot of the newest decomp progress was a prerequisite for widescreen to be built.
In this video we show off a small amount of the code, no commentary, just overview. Full source code can be found at our github repository
30% rewrite
github.com/CTR-tools/CTR-ModSDK/tree/main/decompile/General
97% documented functionality
github.com/CTR-tools/CTR-ModSDK/tree/main/ghidra
Spread the word far and wide, on every website, on every social media, tell everyone that the PC port of CTR is on it's way!
Stay tuned for more.
![Crash Team Racing (Aug 5, 1999 prototype) - Citadel City & N. Oxides Challenge [PART 4]](https://i.ytimg.com/vi/QgpW3YUdoqU/hqdefault.jpg "Crash Team Racing (Aug 5, 1999 prototype) - Citadel City & N. Oxides Challenge [PART 4]
The August 5th, 1999 build is a preview version of CTR built a month and a half before the final NTSC build date of September 24th, 1999. This beta version was widely given out among North-american video game magazines to be used in preview articles before the game is released.
A full documentation of the differences can found at: https://tcrf.net/Proto:Crash_Team_Racing/August_5th,_1999_build
Download the game, patched and ready to go: https://hiddenpalace.org/Crash_Team_Racing_(Aug_5,_1999_prototype%29
This build has protection to prevent people from using the disc outside of Naughty Dog, or their reviewers.
Protection level 1:
If the disc does not detect a special memory card dongle, then the game will not boot. It is as simple as if you see a string on the memory card, then boot. If the string is not on the memory card, then freeze. Interestingly, the dongles internal name is E3 dongle Copyright 1999 Naughty Dog, Inc., leading to believe that it was made specifically for E3 demo but later reused in subsequent builds.
Protection level 2:
After the game boots, there are 7 function pointers that are assigned incorrect values, which are incremented by an RNG before being executed. If a controller dongle is inserted, the controller will inject data into the RNG, then the RNG will increment the incorrect function pointers to the correct function addresses. Without the dongle, the incorrect pointers will execute, and crash the game.
In previous videos, we only had one function pointer working correctly, by setting a breakpoint before execution in no$psx emulator, and overriding the value manually. There were several bugs and instabilities.
Niko has spent over a year researching the retail game (94426), so within a few days, he finally was able to find how the entire function pointer system worked, and insert ASM that forces the RNG to return one value, which corrects all 7 function pointers, allowing the game to run.
Niko also fixed one of Naughty Dogs mistakes that was present even with the dongles, that would prevent the game from loading Relic Race on Slide Coliseum and Turbo Track.
In the link below, there are miscellaneous content for this prototype:
- GameShark codes that allow you to instantly beat Adventure Mode 100%, and unlock all rewards.
- A guide for playing the original ISO by making your own memory card dongle, and using GameShark to apply the rest of the fixes.
- We documented exactly how the ISO was patched, to learn how it was done.
Miscellaneous Content:
https://www.mediafire.com/file/sh93l6fmimh3e16/CTR+(1999-08-05+prototype)+-+Misc+Content+(Updated+2021).zip/file
Huge thanks to almarkowbender, gdias/Darkaiser, Gh0stBlade, let-over-lambda, mementomori/madmarsrocks, Niko, and psx-collector for making this release possible.")
![Crash Team Racing - OnlineCTR Tests [ModSDK v3 Preview] (6/8)](https://i.ytimg.com/vi/Sc-_M-Snc1M/hqdefault.jpg "Crash Team Racing - OnlineCTR Tests [ModSDK v3 Preview] (6/8)
Download the public beta of ModSDK Version 3.0 here:
https://drive.google.com/file/d/1o4qHbD5SK4iRY9JQgABx3BWsR6JcTIs8/view?usp=sharing
These two simulations are offline tests, representing client functions for what-will-be a new online multiplayer experience. As much as we want to start making new official releases of OnlineCTR, we need to sharpen the axe before chopping the tree.
1. Overhead Names
With brand new GTE and Camera Matrix research from the decompile effort, we can now make names appear over the heads of each driver. At some angles this looks perfect, at some angles it breaks a little. Still being worked on.
2. Driver Data
Position, Rotation, Animation, Lighting, all perfectly working for the first time ever. We still need to work on skidmarks, boost fire, exhaust, and weapons. In the video, position is offset on purpose, for the easy ability to compare.
When these prototypes are fully working, there will indeed be a return to OnlineCTR, and with ModSDKv3, it will work fully cross-region in every version of the game
Full package gets published to Github in July. Stay tuned for more.")
![Crash Team Racing - Select N. Oxide via Character Select Screen! [Preview/WIP]](https://i.ytimg.com/vi/ViXASbG3CDU/hqdefault.jpg "Crash Team Racing - Select N. Oxide via Character Select Screen! [Preview/WIP]
A huge thanks to Niko for making this possible.
This is a Work-In-Progress mod of Crash Team Racing where Nitros Oxide can be selected in the character selection screen like any other character in the game, without needing to use any type of cheats! Its still incomplete, and his icon position is a placeholder. Currently working in 1P Arcade/Time Trial modes, but still with a lot of crashes and glitches.
Note: It doesnt work in multiplayer mode for now!
The only ROM code edited so far was three instances of 0xf changed to 0x10 in the 230 DLL within BIGFILE, the rest was done by editing RAM. In the end, it’ll all be ROM hack, this is just a preview. And when it’s done, a full documentation of how it works and how to patch will be released.
Download the savestate preview here (ePSXe - PC only):
https://cdn.discordapp.com/attachments/527135227546435586/701919409517756587/SCUS_944.26.000
https://cdn.discordapp.com/attachments/527135227546435586/701919404547637368/SCUS_944.26.000.pic
This savestate is using the 8MB memory patch, so you can play as him in all Arcade tracks. Have fun!")
