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PostPosted: Sun Feb 09, 2014 11:03 pm 
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DCEmu Freak
DCEmu Freak

Joined: Fri Jul 27, 2007 12:23 am
Posts: 68
Is there a version less than 2.0.4 available anywhere (ideally 2.0.3a) ? The program has a feature to convert between types of BINs (scrambled / unscrambled, etc), however the "convert" option is never selectable (the button is always disabled).

My reason for needing this app is because I need to understand what the difference between "KATANA" and the other BINs is. I've tried copying the first several hundred bytes from "KATANA" BINs over to "(UN)SCRAMBLED" BINs to see if I can make them show up as "KATANA" in the app, but they won't.

Is there a specific format or identifier that makes a BIN a "KATANA" BIN?


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PostPosted: Mon Feb 10, 2014 6:55 am 
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The Crabby Overlord
The Crabby Overlord
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Joined: Mon May 27, 2002 9:31 am
Posts: 4020
"KATANA" binaries would be those compiled against the official Dreamcast SDK from Sega (usually just referred to as the Katana SDK). That would be the "real" difference between them.

Now, if you want to know why the fackue's program detects them as a Katana binary versus a normal homebrew unscrambled/scrambled binary, the easiest way to see that is to look at the source of fackue's BootDreams program (since the 1st read checker source code that is available doesn't actually differentiate between the different types of binaries other than to say whether or not it is scrambled) and see what it is looking for. In the case of a Katana binary, it is looking for the following string somewhere in the binary:
Code:
shinobi library for dreamcast version

If the tool finds that particular string, it will report that it is a Katana binary (unless it detects that it is an ELF file first, but that's somewhat irrelevant here).


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