Load a ISO game outside the PSIO Bios (Homebrew Custom ISO Launcher EuroDemo Like) ?

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Tgames
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Load a ISO game outside the PSIO Bios (Homebrew Custom ISO Launcher EuroDemo Like) ?

Post by Tgames » January 15th, 2018, 12:23 am

Hi,

It's possible to make a homebrew Euro Demo Launcher like autobooted by the PSIO to choose the game ?
If we program a launcher like that to a PS1 ISO then build a multiboot CD sequence for PSIO ?

Launcher Like that :
https://www.youtube.com/watch?v=_ZrvEhyeGT4

Or like that :

https://www.youtube.com/watch?v=Y-N2vTP7uuc

All i know about the PSIO (outer the bios) it's that we can use multidisc so utility like Action Replay/Gameshark can boot a game not from the bios. So why not a homebrew custom ISO Launcher ?

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Matt
Cybdyn Systems
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Re: Load a ISO game outside the PSIO Bios (Homebrew Custom ISO Launcher EuroDemo Like) ?

Post by Matt » January 15th, 2018, 4:14 am

You can do it by renaming the game you want to boot as MENU.SYS, but then you'll lose XA/CDDA playback since the patch logic isn't triggered into the interrupt vector. We'll have to make an official way on how to do this and release it in the next update.

Tgames
Curious about PSXDEV
Curious about PSXDEV
Posts: 25
Joined: July 10th, 2016, 12:59 pm

Re: Load a ISO game outside the PSIO Bios (Homebrew Custom ISO Launcher EuroDemo Like) ?

Post by Tgames » January 15th, 2018, 10:06 pm

Thanks for your answer.

I will be so cool to have a Demo1/EuroDemo like Launcher for games.
So we can have the cover, description and mini manual like all free ps1 demos discs

I will try to build one in C with the PSX SDK (using graphics from a euro demo CD) when i will get the PSIO.

The most easy custom EuroDemo menu to rebuild is this : (Only a background video and few graphics)

https://www.youtube.com/watch?v=fkwxVTDR7ms

Best Regards.

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Matt
Cybdyn Systems
Cybdyn Systems
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Joined: December 31st, 2012, 5:37 pm
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Re: Load a ISO game outside the PSIO Bios (Homebrew Custom ISO Launcher EuroDemo Like) ?

Post by Matt » January 16th, 2018, 3:29 am

Oh, I see what you mean. You'd like the Menu System to offer such an option. Well, we can do it if you'd like. A text file on the SD Card in the game working directory could be used to have the 'description' and 'mini manual'. We can also try and offer 3D cover art support too. I'll add this to the to-do list and start working on it when I have free time to spare on little things like this :)

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