Homebrew Saturn emulation using Cotton/Guardian Force testing and debug

[Ligeia]

Like what games? Have you tried just simply using title romfs method instead of using an injection script nsp thing

These ones :
- Toshinden U.R.A. (first and foremost)
- DBZ Shin Butoden
- Suiko Enbu - Fuuun Saiki
- D-Xhird
- Last Bronx
- Zen Nihon Pro Wres featuring Virtua
- Astra Superstars

I didn't know about this title romfs method, but found your original post about it doing a search. I'll try that, thanks

 

[lisreal2401]

Something that has mystified me even back when it was posted... does anyone have insight on how @ploggy initially decrypted the .ini for Cotton 2 in the first place?

I now have Assault Suit Leynos 2, which is almost the same in terms of structure as the first releases, but contains an additional .cdda file that may or may not be causing problems with bin/cue swapping.

Attempting my own initial instructions (of course) did not work.
Swapping the .cdda file with a .bin file containing audio did not work.
Swapping the bin with a Redump dump of the same game did not work.

Swapping the bin with a Redump dump of the same game, but with hex values from 0x0000000 to 0x00000100 inserted from the encrypted bin included in the release had some promise, the game passes it's "Now Loading" screen into it's pregame instructions, but shortly closes after that.

The unencrypted hex reads as this, for what it's worth. There's "some" checking going on in this portion at least.

00 FF FF FF FF FF FF FF FF FF FF 00 00 02 00 01 53 45 47 41 20 53 45 47 41 53 41 54 55 52 4E 20 53 45 47 41 20 54 50 20 54 2D 32 35 20 20 20 20 54 2D 32 35 30 31 47 20 20 20 56 31 2E 30 30 33 31 39 39 37 30 31 31 34 43 44 2D 31 2F 31 20 20 4A 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 4A 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 4A 55 55 53 4F 55 4B 49 48 45 49 20 4C 45 59 4E 4F 53 32 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 36 00 00 00 00 00 06 00 20 00 06 00 10 00 06 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00

�ÿÿÿÿÿÿÿÿÿÿ���SEGA SEGASATURN SEGA TP T-25 T-2501G V1.00319970114CD-1/1 J J JUUSOUKIHEI LEYNOS2 ������������������6������ �����������������

Encrypted hex from included binary if anyone wants to look at this without doing the dumping.

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