Dreamcast Widescreen Hacks

@japanese_cake you are working on a boot cd that can patch for example an original skies of arcadia gdrom to widescreen and your vga patch?

 

If what you are saying is right, you've just guessed 1/3 of the project

 

Maybe a hacked bios that will automatically boot games in widescreen? if so, I also have a widescreen hack (among other things) for the bios if you are interested.

Spoiler

 

That's awesome, how would one go about applying this to their console?'

Could you upload the file?

 

BUGGYHEAT, J, T6801M, V1.004

Widescreen

Code:

02042F3C
4384BC09

60 FPS.

Code:

0215584F
15665401

 

i thing a new custom bios that will give native widescreen on all dreamcast games is coming next. if that turn to be true i will order a new flashable bios for my dc

 

Finally!!!

Rez v1.003 (2001)(Sega)(PAL)
REZ, E, MK-5119250, V1.003

Code:

020C5EB4
3A888889

60 fps.

Code:

0228E080
00000001

 

Out of curiosity, how did the beta helped you figure this one out?

 

Holy shit, thank you much for the REZ patch.

You are a LEGEND, once again THANK YOU SO MUCH.

 

Hell yes! Time to bust out the subwoofer! REZ in widescreen and 60fps is going to be pretty fantastic.

 

Awesome work on the Rez codes. 60 fps looks fantastic but it does change the game a bit. It seems like you're able to lock on/fire more frequently and it really lowers the difficulty level of the game. I've only tested it on Demul, no idea if it performs this way on real hardware.

 

Rez freezes right before the data loading screen (butterfly on the bottom right corner of the screen) when using the widescreen on ReviveDC Rez.

Can this be fixed?

 

Up to date codes listing. Keep 'em coming Esppiral!

 

hi Roareye, i see you added Evolution 2 pal from eol list: http://www.elotrolado.net/hilo_ho-formato-panoramico-en-juegos-de-dreamcast_2131113

It was a mistake i made with region, is the same code of Wider Field of View of Evolution 2 USA.

sry

 

I tested this code on my Dreamcast and it works, maybe a bad burn? or different region?

This can't be applied to a real bios with action replay codes, someone could just hack the values, but action replay codes are applied after the sega logo afaik

One of the values I look for to find the correct address is 0,0015625 float, wich is the result of dividing 1/640.

For some reason when I did the searching on others versions of Rez Cheat engine would display a bunch of results but none of them were the one I was looking for, that's not the case in the beta, cheat engine gave me the right address, so I started looking at similar addreses in the retail version of Rez, it turns out the value was there, but for some inexplicable reason Cheat engine will avoid displaying that concrete address when doing a search...

Weird...

 

So then this code changes REZ from 640 vertical lines to 960?

 

Rez v1.003 (2001)(Sega)(PAL)
REZ, E, MK-5119250, V1.003

1ST_READ.BIN Patch.

Code:

OFFSSET
000B5EB4

Find
CDCCCC3A

Replace
8988883A

ISO PATCH.

Find

Code:

8988083B CDCCCC3A 2CDB018C 0000003D BCA1238C

Replace

Code:

8988083B 8988883A 2CDB018C 0000003D BCA1238C

Re-Volt v1.001 (1999)(Acclaim)(PAL)
REVOLT, E, T8107D, 50V1.001

Code:

020464FC
3A888889

Revolt needs a render Fix, I'll take a look at it later.

 

Can every game be patched in that manner (I'm talking about the ISO)?

If so what should we be looking out for the in the code to spot where to replace the addresses?

 

Crazy Taxi Pal

Code:

022B3410
43700000

Crazy Taxi 2 Pal

Code:

022BFB70
43700000

Virtua Tennis Pal v1.001

Code:

02456378                
43700000

Virtua Tennis Pal ?

Code:

024562F8
43700000

 

No you can't do it in general. If the 1st_read.bin can be patched directly, then the ISO can. Be aware though that patching a bin file requires rebuilding the EDC/ECC for the affected sector.