What is it: this is a debugger plugin for IDA, that allows you to debug your most loved games for PS1. Based on PCSXR emulator. No plugins or BIOS were included.

Releases here: https://github.com/lab313ru/psxida/releases

Sources: https://github.com/lab313ru/psxida/

How to use: Put plw- and p64-files to your IDA/plugins directory (version not lower than 6.8).

Then open the game launcher binary/BIOS/other file in IDA with the psx.ldw/psx.l64 loader, and select PsxIda as the debugger.

Run emulation by pressing F9. Configure plugins, bios and other things as you want.

Important: in emulator’s Configuration–CPU… menu check both “Enable Interpreter Cpu“, and “Enable Debugger” checkboxes.

Now, select your game’s ISO/CD-ROM/binary in emulator, and debug!=)

P.S. In IDA go to Options–General…–Analysis–Processor specific analysis options and add the next mappings:

• From|To|Size
• 0×00000000|0×80000000|0×00200000
• 0xa0000000|0×80000000|0×00200000