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Geek Culture / hoe do you make a ps2 game

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Neofish
20
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Joined: 7th Apr 2004
Location: A swimming pool of coke
Posted: 1st Feb 2005 08:09
16K!?

Jeku
Moderator
21
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Joined: 4th Jul 2003
Location: Vancouver, British Columbia, Canada
Posted: 1st Feb 2005 09:01
@Cellbloc - That is very cool Did you manage to create anything nifty with it?


--[GameBasic - Coming Soon]-- ^^^ banner generously designed by TheBigBabou
blanky
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Joined: 3rd Aug 2004
Location: ./
Posted: 2nd Feb 2005 01:08
Quote: "[quote]"official DVD+/- RW with the ability to create erronous sectors""


whats that?[/quote]

(The explanation for the PS1 (PSX) is the same as for the PS2, so I'll say PS1. 'Cuz I'm special.)

When the PSX boots up, it checks for certain things (protections) present on the CD:
- The country code (i.e., PAL, NTSC)
- The presence of erronous sectors.

If either of these are missing, then the PSX won't boot. Okay, the primitive PS1 allows you to do a 'swap trick', and the PS2 version is just a tiny bit harder, but then you end up with the file table of the real CD you use, and so stuff happens bad... meh

Country code = Quite easy to break. No, really, really easy. Just change a couple of numbers on a certain place on the CD.

Erronous sectors = Erronous sectors are basically bad, unreadable sectors of the CD. Special Sony CD & DVD writers used for burning PSX & PS2 games have the ability to make 'bad' sectors.

Problem is, every other drive in the world doesn't.

So the PSX checks if it can read a few certain sectors, and if it can, then it refuses to boot.

While ripping a PSX game, your CD/DVD drive will tell the computer about an erronous sector, and this is just ignored by the software (in the file it's just set to 00), or, if your ripper is advanced enough it may write erronous information into the file.

But if you try and burn the ripped game, your CD recording program will either turn this into valid data (yep, another '00'), or try to send the data to the CD-RW, and the drive will complain and the program will probably crash.

And if it's been written into the file as 00, the CD-RW program just burns that 00. So when you stick it in the PSX, it sees readable sectors where they should be unreadable and doesn't start the game.

Avatar - white cat in a snowstorm. Look closely.
AlexI
19
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Joined: 31st Dec 2004
Location: UK
Posted: 5th Feb 2005 22:35
i wish you could get dark basic for playstation 2 and it burnt the games to disc
Sol462
20
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Joined: 12th Sep 2004
Location: playing with the spazookeedoo
Posted: 6th Feb 2005 01:40
man, if only it were that easy...*imagines stuff*

coffee + monkeys + creativity = games
Operation Pineapple - Multiplayer FPS WIP
ionstream
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Joined: 4th Jul 2004
Location: Overweb
Posted: 6th Feb 2005 06:22 Edited at: 7th Feb 2005 04:51
LOL, 16 K!!

@!hi! - Please stop making these weird, short, grammatically attrocious posts, eg "has any one got any good c++ programs". This is completely off the subject of XBox game creation.

I'm almost positive that XBox Games are made with DirectX 9 (freely available from MSDN). If not, then there is no free Graphics Library for the XBox.

Either way, you do need to supply the means of getting the game to a disc. As Blanky said, you need a DVD/RW drive with burning software that burns disks to correctly comply with XBox.

Quote: "Does anyone know how to put a dark basic game onto xbox?"


DarkBasic creates Win32 programs that start at WinMain and uses the Windows API to create windows and do various functions. XBox does not. There is no way to (easily) put DB/DBP games on XBox.

Sol462
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Joined: 12th Sep 2004
Location: playing with the spazookeedoo
Posted: 6th Feb 2005 07:22
Quote: "I'm almost positive that XBox Games are made with DirectX 9 (freely available from MSDN). If not, then there is no free Graphics Library for the XBox.

Either way, you do need to supply the means of getting the game to a disc. As Blanky said, you need a DVD/RW drive with burning software that burns disks to correctly comply with XBox."

the xbox uses a slightly modified DirectX 8.1, not 9. and some free libraries for the xbox are OpenXDK and the tractor engine. as for burning games, you just convert (thats convert, not rename) the executable to .xbe (xbox executable). then you just make an iso and burn it,but you need a modded xbox to read it. once the signature that is put on xbox games is decrypted, you can play them on virgin xboxs.

coffee + monkeys + creativity = games
Operation Pineapple - Multiplayer FPS WIP

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