wow, I remember fitting those in the late 1990s and early 2000s. I used thinner wires though. I cannot remember what they were called but, managed to buy the blank chips and program them from hex I got off the internet.

PIC12 is a universal microcontroller from Microchip. They were probably used in many many modchips from back in the day. You might be able to extract the firmware using a Microchip PIC programmer, but most of those include fuses that can be blown to prevent them from being read or re-programmed. Reverse engineering the firmware probably wouldn't be too hard either, but might take some time.

Most older modchips were just random microcontrollers with some software on it to trigger some levels in specific situations making the software think everything is fine.

Are you having some issues with it?

https://en.wikipedia.org/wiki/PIC_microcontrollers

Can't tell you details but found a similar chip for sale. Maybe that helps... https://www.aliexpress.com/item/4000236804743.html

Cold boot imports and backups

There were several mods that ran on a pic chip (including some that have been made much more recently and can be found on GitHub)