How to install your BIOS into PSXmit 1sBIOS: https://scratch.mit.edu/projects/878855934 NEWS (2023/09/11): Every BIOS has gone through a small sound update. I'm working on SCPH-1001 for now. (It may run differently from the other BIOSes due to some coding changes.) Games: [Customizable region] Blank Game (0308-23) (RD) [PAL] Demoscreen [NTSC-J] Demoscreen [NTSC-U/C] Demoscreen [PAL] MODKE World Racing (Prototype) (@Galactjavi) BIOSes: [PAL] SCPH-1002 (0609-23) [NTSC-U/C] SCPH-101 (0309-23) [PAL] SCPH-102A (0309-23) [NTSC-J] SCPH-103 (0309-23) See more about the PS1 BIOS regions at: https://www.psxdev.net/forum/viewtopic.php?t=56
LEARNING HOW TO USE THE REGION DETECTION SYSTEM Both the BIOS and the game have a 4 letter code indicating the region The codes are: SCEA (America - NTSC-U/C) SCEE (Europe - PAL) SCEI (Japan - NTSC-J) There is a variable inside the 1sBIOS file with region detection that indicates the region of your game. Change it to one of these three codes to specify it's region. If the game region doesn't match with the system, your game will not work.
