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Cobra BIOS v0.2. by Mentalcube

29387 of 31,309 files
"it appears that some fucker leaked a -PRE-ALPHA- version two days ago together with a screenshot (fuck you Vincenzo)".
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 │                                                                          │
 │                                                                          │
 │                        - COBRA FOR VIPER GC V0.2 -                       │
 │                        (Proof Of Concept Version)                        │
 │                                                                          │
 │                          15th of december, 2004                          │
 │                                                                          │
 │                                                                          │
 │  You didn't expect it to be true, right? Well, guess what... it IS!      │
 │  As of today, no need for PSO anymore, you can boot your code directly   │
 │  from the GC drive using DVD-R or Mini-DVD-R! This also includes the     │
 │  ability to boot your backups.                                           │
 │                                                                          │
 │  So what do you need exactly ?                                           │
 │     - A Viper GC chip                                                    │
 │     - This very flash file                                               │
 │     - Some Compatible Media and a DVD- burner                            │
 │                                                                          │
 │  In fact, we wanted to release the first version of our Viper BIOS       │
 │  around Xmas time, but it appears that some fucker leaked a -PRE-ALPHA-  │
 │  version two days ago together with a screenshot (fuck you Vincenzo),    │
 │  together with a screencap. We decided to release a proof-of-concept     │
 │  version as soon as possible so that people can stop spreading rumor     │
 │  about it (and DON'T USE the pre-alpha as it has some major bugs).       │
 │  We feel it's totally natural that most people did doubt it was true,    │
 │  as most of them have been waiting for such a solution for years! So     │
 │  now those people can try the thing for REAL :-).                        │
 │                                                                          │
 │  USER MANUAL                                                             │
 │                                                                          │
 │   - Flash the Viper GC with this BIOS then remove the parallel port      │
 │     connector from the programmer (well, their manual says so)           │
 │                                                                          │
 │   - Turn on your GC with an ORIGINAL DISC in the drive.                  │ 
 │     If there's no Title Screen coming, but the original BIOS instead     │
 │     it's probably that you messed up your viper install:-)               │
 │     Check that it's clean (and no wires crossing each other etc...)      │
 │     If you have a black screen coming, it's probably because you have    │
 │     some wierd BIOS we don't support (and don't know about) yet.         │
 │                                                                          │
 │   - While turning on your GC:                                            │
 │        - Hold X if you want to boot Original BIOS instead                │
 │        - Hold Y if you want to boot Original BIOS with region-free hack  │
 │        - Don't hold any button if you want to run DVD-R :-)              │
 │                                                                          │
 │   -  "PLEASE WAIT" should appear. then "SWAP DISC NOW!" and the GC       │
 │      disc is stopped (and laser off). As soon as you see the disc is     │
 │      slowing down it's safe to remove the original disc and put your     │
 │      DVD-R instead. After a few seconds the drive will start to spin     │
 │      again and disc will boot (if you didn't have enough time to do the  │
 │      swap trick, turn off the GC and try again)                          │
 │                                                                          │
 │   - Remove the top of your GC if you want to use full-size DVD-R         │
 │                                                                          │
 │  THE MEDIA                                                               │
 │                                                                          │
 │  The GC drive only eats DVD-R, MINI-DVD-R and single-layer silver DVD,   │
 │  it doesn't work with + media or DL at all.                              │
 │  But, like Xbox thomson drive, it is very "sensitive" to the brand of    │
 │  media you're using. Some are working better than others, some even      │
 │  NOT AT ALL! So better check what media other users recommend.           │
 │                                                                          │
 │  After a few tests here is what we think:                                │
 │                                                                          │
 │  - For DVD-R, most media are working, except some cheap no-names. On     │
 │    some drives only the best media is working really fine.               │
 │                                                                          │
 │  - BUT FOR MINI-DVD-R it's more tricky. We tested the following brand:   │
 │        SONY DVD-R 1.4GB handycam: doesn't work                           │
 │        TDK DVD-R 1.4GB scratchproof: doesn't work                        │
 │        MAXELL DVD-R 1.4GB: sometime boots, but then loose sync           │
 │        DATAWRITE DVD-R 1.4GB: on some drives it works 100% like the      │
 │              best DVD-R, but on some other drives it just can't sync     │
 │              (when it does its working perfectly)                        │
 │                                                                          │
 │  In fact, we have some idea on how to improve the compatibility with     │
 │  bad media in our next BIOS. For now we really suggest you to find       │
 │  a good full-size DVD-R media, and get the opinion of other users.       │
 │                                                                          │
 │  You don't need to encrypt the disc or use a special burner firmware     │
 │  to write the disc. Just burn your ISO/GCM (we use Nero).                │
 │                                                                          │
 │  Maybe different burners will lead to different results too, for now we  │
 │  just tried a cheap NEC burner.                                          │
 │                                                                          │
 │                                                                          │
 │  TROOBLESHOOTING                                                         │
 │                                                                          │
 │  REMEMBER, THIS IS A PROOF-OF-CONCEPT-VERSION !                          │
 │  There are probably lots of bugs we need to fix including:               │
 │                                                                          │
 │  - Sometime the "SWAP DISC" message doesn't appear (or disc doesn't      │
 │    slow down/laser is still on). If this happen to you just turn off     │
 │    your GC and try again (ok, this is clearly our fault :-)              │
 │                                                                          │
 │  - If sometimes after you swapped a disc there is a sync problem with    │
 │    the DVD-R and origial BIOS is not loading, then try again. If this    │
 │    happen very often, then you need a better media.                      │
 │                                                                          │
 │  - If the drive becomes idle for a couple of minutes, depending on the   │
 │    media you're using it might loose sync, and hang. This is also a      │
 │    bug of ours we will track. For now, if this happens to you, avoid     │
 │    "PAUSE MODE" in games.                                                │
 │                                                                          │
 │  - Audio Streaming doesn't work. So, the games/programs using the        │
 │    special streaming commands will work, but instead of a nice MUSIC     │
 │    you'll hear annoying NOISE :-). We'll have a look at those issues as  │
 │    well !                                                                │
 │                                                                          │
 │  - Doesn't work with multi-discs games yet                               │
 │                                                                          │
 │  REMEMBER, THIS IS A PROOF-OF-CONCEPT-VERSION ! All those problem        │
 │  could be fixed in a next update, except for media maybe (if someone     │
 │  wants to try laser tweaking we'd be interested by the results!)         │
 │                                                                          │
 │  Note that on screen there's a two digit number corresponding to your    │
 │  GC version (right after the Cobra Version). Here are the current        │
 │  versions we support: 14,16,18,24,26,28,34,36,38,44,46,48. If you have   │
 │  another version, then we don't know about it yet...                     │
 │                                                                          │
 │  IF YOU MAKE BACKUPS, DON'T USE ANY "WIPE" TOOLS TO SAVE SPACE. Unless   │
 │  you know it's REALLY working. Most of thoses tools only work because    │
 │  the current pso loaders patch libraries routines to emulate DVD. But    │
 │  on REAL HARDWARE, each file/fst has to be aligned on a 4-byte boundary! │
 │  Else nothing will work. Audio Files (for audio streaming) even need     │
 │  to be aligned on a 32kb-boundary ! So forget current "WIPE" tools until │
 │  they are fixed.                                                         │
 │                                                                          │
 │  THE FUTURE                                                              │
 │                                                                          │
 │  Apart from fixing the current bugs, we have plans to make a (better     │
 │  looking) real GUI, and some other surprises :-)                         │
 │                                                                          │
 │  For coders it's a bit(!) annoying to burn DVD-R for each test. We'll    │
 │  try to work on a better solution (either using BBA or viper debug       │
 │  IO)                                                                     │
 │                                                                          │
 │  CLOSING WORDS                                                           │
 │                                                                          │
 │  Special thanks to E*Flash for his help, and RoM for the early units.    │
 │                                                                          │
 │  You are free to redistribute this package as long as it's not changed,  │
 │  patched, ported, or whatever.                                           │
 │                                                                          │
 │  Our code is free of any copyrighted code from third party.              │
 │  It is also free of any GPL licensed code, we have strong respect for    │
 │  other people's hard work. We only ask you to show similar respect       │
 │  toward our work. To put it in other words, if you are in the "right"    │
 │  side, draw the line between learning and stealing. Thank you.           │
 │                                                                          │
 │  That's it for this NFO, hope we didn't missed some important point.     │
 │                                                                          │
 │  Have a nice day :-)                                                     │
 │                                                                          │
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 └──────────────────────────────────────────────────────────────────────────┘
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