I'm by no means an expert, but I believe this is not possible [1] due to the different CPU architectures. Raspberry pi = ARM/RISC and mIRC runs on x86 architecture...

[1] Unless you pay for something like ExaGear (emulator) https://eltechs.com/product/exagear-desktop/

GNU Terry Pratchett - Looking for a mIRC help channel -> Check #mircscripting @ irc.swiftirc.net