forums.ps2dev.org

If this needs to be moved do so but i donot know where to put it.

Now down to buissness. If you had a PS2 emulator do you think you could run hombrew code on it as if it where a PS2 rom. PC's dont check for copy protection and wouldn't care if the disk was pressed or not. Now the only problem we face after that is finding a PS2 emulator without having to download the BIOS to run it. Would that work? If it doesn't, why?

Ekeko wrote:If this needs to be moved do so but i donot know where to put it.

Now down to buissness. If you had a PS2 emulator do you think you could run hombrew code on it as if it where a PS2 rom.

If you wrote a "replacement" ROM, so to speak, and substituted that in
place of the PS2 ROM/BIOS on an emulator, that is technically feasible.
The PS2 is like any other embedded computer system. Thus you could
run homebrew apps that are DESIGNED to run without the support of
any ROM code/functions.

However, if you replaced the ROM, you would have to provide your own
low-level support for many tasks that interface with the hardware.

As far as checking for pressed disks, you are talking about an emulator
you can make it do anything you want it to do, but I don't know why you
would care about that since you are talking about homebrew right ? Why
in the world are you leading the topic into an area concerning circumvention
of protection on pressed PS2 discs? If you continue down that avenue,
you will find yourself extremely unpopular around here.

Gorim

I care about pressed disks because of what i read tells me that origional PS games are pressed and homebrew isn't therefore you have to yous that knife trick. But a PS2 emu might not look for pressed disks and homebrew code in theory should run on it. As for those modifacations i your probably right but i couldn't understand if I tried. And about cicumventing the protection I wasn't aware i was doing it and im sorry

P.S. Im not very good at typing posts so if it sounds like a complaint directed at you it isn't

Ahh I see,

No one needs to use modifications in order to run homebrew apps.

Therre are many methods to boot a PS2 in order to run PS2 apps:

1. Bootable CD (from modchipped system)
2. Memcard "independance" exploit (created from boot cd or ps2linux)
3. Reload from PS2Linux
4. many others i am sure I am forgetting

I have never modified my PS2 systems, I used the memcard method
generated from ps2linux. If you don't have ps2linux, you might have
to first rely upon a modchip'ed system tto create the memcard, or to
use the boot cd.

Read "Start Here" documentation on this site to find out the many ways
to boot.

Gorim

Ekeko wrote: do you think you could run hombrew code on it as if it where a PS2 rom.

That's kinda ambiguous.. What do you mean by a PS2 ROM?
By definition that is the software on the console that provides the BIOS, some syscalls such. Which is owned by sony so the only legal way to find one is to download it off your own console.
But in emulator-land a ROM can refer to an actual playable game, but this is only really a revelant term on cartridge based systems. Homebrow developers create and run .ELF's, not roms.

As to an emulator playing non-pressed discs, thats really a moot point. If all you want to do is run homebrew code, you can just load the emulator up with your executable file. If not, and you want to play commercial games, (then you should be posting elsewhere.. ) the disc type is currently irrevelant because emulators struggle to even run a commercial game, on any type of disc, let alone in a playable manner.

I looked at emu's as a solution to dev'ing away from home, but there's still a lot of work to be done on them before the become worthwhile, IMO. No pc app can replace our little black & blue box...

cheriff wrote:No pc app can replace our little black & blue box...

I would say "not yet"! =)

Years ago i thought Amiga was unemulable and then came UAE, so if you give enough CPU power to motivated people you can emulate everything.

So if he has patience to wait for a reasonable period time, lets say 5 to 8 years, he can probably test his homebrew applications with a ps2 emulator like he was on the real thing =)


P.S. maybe less after doing a quick google search...

cheriff wrote:But in emulator-land a ROM can refer to an actual playable game, but this is only really a revelant term on cartridge based systems. Homebrow developers create and run .ELF's, not roms.

sorry mde a mistake yes by rom i ment the ELF