Chui needs the source of the PlayStation emulator pSX in order to get a base for PSX4ALL. This emulator is available for Windows and Linux, but sadly the source code isn’t available. Chui and DCiberia have started a petition to make the authors of pSX to relase the source code. We need a lot of people for this petition so post in the DCiberia forums or in topic in our forum so we can get enough voices for this petition or just post in the pSX forum.
Source: DCiberia