Dreamcast Widescreen Hacks

Merry Christmas everyone!!!

I have good news and BAD news about Phantasy Star Online, The good news are, that I actually found the addresses where the values responsible for widescreeen are stored, the bad news are that they only seems to work with Phantasy Star Online (not ver.2)

I was trying to make Phantasy Star Online Ver. 2 v1.004 (2001)(Sega)(NTSC)(US)(M5)][2S 51193] widescreen, just because thats the version I legit own, but after reading Treamcaster's post about how the Sonic Team implemented extra copy protections to the game, I gave a try at the "vanilla" (I hate that word) version of the game, and it indeed worked.

There are actually 3 ways of making the game widescreen, 3 values are responsible for that, on PSO( ver1) we can freely change all them, on PSO(ver2) 2 of those 3 values are constantly being updated by the game, making it virtually impossible to make the game Widescreen, until someone with some programming knowledge injects the new values into the game, (don't know if this is possible though.


Phantasy Star Online v1.012 (2000)(Sega)(NTSC)(JP)(M5)[!][HDR-0142-0584A 10M1]

Code:

0257E344---43D20000
02091794---3FA66666

I allways felt the game was super squashed vertically even playing on a 4x3 TV, the actual value is set to 0.85 so I changed it to 1.0 and from there I made the game Widescreen. Anyway you can change the values to whatever fits your needs.





I'll post the addresses for PSO ver2 if anyone want them or thinks they can be usefull, Oh and I've seen there are a ton of revisions and versions of the game, if someone wants to try just look for 0.85 and 640 in float and you may find the adresses.

 

Super Runabout v1.002 (2000)(Virgin)(PAL)

Code:

02E2B234---3f800000

 

Wow, this is definitely a very nice Xmas present indeed, good job Esppiral! Do you think there's a way to get the HUD in the right proportions as well?

 

I don't know if this might help in finding a widescreen mod for PSO v2 DC??
But, here is the camera memory address for PSO for PC (pso.exe)
You should be able to find similar hex chain around this memory address and then search for it on PSO v2 DC.
PSO for PC is v2 PSO and has all the same crap the DC version does.
Maybe this will help?

Camera (pso.exe) 6E20C0

 

Phantasy Star Online v1. (2000)(Sega)(NTSC)(US)(M5)

Code:

02548E84---43D20000
020925A4---3FA66666

60FPS 2X SPEED

Code:

02575508---00000000

 

Esppiral : thanks ! Your work is incredible, impressive !

 

If we should thank someone that person is S4pph4rad, who started this trend and gave us hints of how to achieve widescreen patches, without him none of this would have happen

 

Toy Commander v1.021 (1999)(Sega)(PAL)(M4)
Addres responsible for widescreen.

Code:

020D592C

The game does have a widescreen option, and it is pretty neat, so this is for those with ultra wide monitors.
initial value is 1.227614403 in float and 3F9D2278 in hex change it to wathever fits your needs.

 

Shenmue - Ichishou Yokosuka v1.007 (1999)(Sega)(NTSC)(JP)

Less Clipping/No characters clipping.

Code:

021EBE70---7C1EBF00

 

This is all pretty amazing stuff, I hope it will be possible to convert these into patches we can apply directly to gdi images

Would it be possible to create a widescreen hack for the DC boot flash itself? I can imagine ti would make the ultimate DC Bios - Region Free Devkit bios running in 16x9 (And even more amazing with 'real mode' activated).

 

Does anyone know the enable code for Evil Twin - Cypriens Chronicles v1.001 (2002)(Bigben - Ubi Soft)(PAL)(M5)?

Thanks.

 

you can get the code for 16: 9 sonic adventure ntscu, please.

 

I think you can mod games to run at 800x608 (yeah it's 608 not 600, I can clearly see it). I'm seeing some stuff in the memory that give solid proof that it is possible though that wouldn't mean that the game wouldn't crash or the hardware can keep up with it. The problem is that those values need to be set at the BIOS sequence at the moment the game checks the video mode, so we'd need to modify the game's executable to try it.

 

WOW could you elaborate a little bit more please? I may try it.

 

The values don't need to be set during the BIOS, you can set them at any time as long as you're writing the code to do it. The amount of work required doesn't seem like it would be worth the effort since you need additional memory to account for the increase in framebuffer size.

video.h from KOS has an enum with the valid values for video mode.
http://cadcdev.sourceforge.net/docs/kos-2.0.0/video_8h.html

From video.c, you can see that you have to do a series of sets on the video registers starting at 0xA05F8000

 

I see...

Spoiler

 

Shenawesomemue!

..and I also looked into HUD and looks like because compass is constantly rotating it seems like there's no way to fix it

 

hi! any way to integrate all the codes to action replay cdx in a .cdi

 

That looks amazeballz.
But, does anyone actually have that wide a tv?

 

I think it's a proof of concept to amplify the phenomenon.