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Hello! PIT (timer) does not work in my code. Can anyone help me please?

Here are my code for IDT, IRQ, PIT (timer.c) and GDT.
https://codeberg.org/nekorporation/neko ... /arch/i686

You mean the code that you copied and pasted from a tutorial. You didn't write this code. IRQs don't work because they are disabled in boot.s, line 101.

haha lol.

I suggest you try to actually read about PIT to understand it's functionnality instead of just copying and pasting code.

And read a bit about interrupts in intel manuals (cpu manual, pic/ioapic manual, apic)