Ivthandleinterrupt ✦ Fast & Reliable

ivthandleinterrupt(vector, stacked_frame):
    save_cpu_state()
    if vector invalid: goto end
    irq_info = lookup(vector)
    source = detect_source(irq_info)
    handler = irq_info.handler
    if handler:
        handled = handler(stacked_frame, irq_info.dev)
        if not handled and irq_info.chained_handlers:
            try chained handlers
    if handler requested deferred_work:
        schedule_deferred_work(irq_info.work)
    send_eoi_to_controller(irq_info.controller)
end:
    restore_cpu_state()
    return_from_interrupt()

If you want platform-specific code (x86_64 assembly + C wrapper, or ARM Cortex-M C example), specify target architecture and calling convention and I will provide a compact sample.

Positive: It clearly indicates it handles interrupts and references the IVT.

If it’s from a specific codebase (e.g., educational OS, hobby kernel): ivthandleinterrupt

If you meant a typo or a different term: If you want platform-specific code (x86_64 assembly +

To give a helpful review, please provide: Positive: It clearly indicates it handles interrupts and

Would you like a general checklist for writing a safe interrupt handler instead?

Inside ivthandleinterrupt, the code:

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