is it possible to make the "playstation 2" gameboot appear when using opl? kind of like with popstarter with adding a bios?
I use that on my mini OPL mod. The logo is XORED by CDVDMAN using data from the string that make the name of the boot file and a value encoded from the DISC ID (the same ID DNAS use identify if a disc is legit). Then the logo is checked if it is correct and only after that the logo is displayed by a module called PS2LOGO. That module then executes the boot file as stated by the BOOT2 string on system.cnf. The CDVDMAN driver on Open PS2 loader has the logo XOR function stubbed so it will return the exact same buffer that was sent to it. A XOR'ed logo will be returned as is. The logo is checked before it's displayed by PS2LOGO and if it is not the proper PS2 logo the console will freeze on a black screen. So, for that to work you need to modify the isos by replacing their original logo data with a plain PS2LOGO image... P.S.: Very few PS2 consoles don't check the logo like for example the original 10K series with 1.00 BIOS and early USA units (Units with firmware version 1.10, 1.20). Examples: Xored logo on SCPH-10000: NTSC LOGO: PAL LOGO: Paradox custom logo from patched discs for old 10k DVD utility disc swap: While this works, it will be a big hassle for you to mod the ISOs for it to work and it will also prevent you to use PAL games on a NTSC console or a NTSC games on a PAL console.
