Dreamcast-Talk.com

Hello!

I've been researching patching GDIs so they can display anamorphic widescreen. It appears there's a few ways to do it. The most simple being codebreaker. However, I find that not all games have widescreen patch codes in the codebreaker cheat list and you'd need to enter the code every time you boot the game. I'm looking for a permanent solution.

The other opetion is to manually patch the GDI using a hex editor using codes from a list such as this below. I've attemped this a few times with no sucess.

http://retro-magic.de/Dreamcast_Hex_Patches_en

I'm actually surprised there arent pre patched GDI files floating around online. Does anyone know how to correctly widescreen patch a GDI? Or, if there's pre patched GDIs floating around online? The two games that I'm most interested in patching are Outtrigger and Quake III arena.

Thanks!

Checkout this thread where you'll find probably all possible widescreen patched GDIs -> viewtopic.php?t=14282

Codebreaker codes aren't compatible on game binary level. So each game require dedicated GDI patch, also not each game can be patched with success, in general it's difficult thing to do.

Open the track03.bin with the hex editor and do a search replace.
It should work.

That may not always work. CodeBreaker codes modify values in memory, which may be calculated dynamically, and the data in the binary may be reused in other places where you don't want it to be modified. The address in memory does not always translate to the address in the file. It really depends on the game and the patch itself.

PkR wrote: ↑Sun Feb 02, 2025 7:12 pm That may not always work. CodeBreaker codes modify values in memory, which may be calculated dynamically, and the data in the binary may be reused in other places where you don't want it to be modified. The address in memory does not always translate to the address in the file. It really depends on the game and the patch itself.

You are right, sometimes only codebreaker is working.

That's very interesting. I was hoping it would be a little simpler but it never is he he.

I'll do some experiments with the track03 file and post in here if I get any success.

Thanks!