assembly - Entering the CMOS or BIOS at the console after boot and before the OS comes up, its able identify the devices -

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can confirm thinking based on question above? after cpu process reset vector address instruction located @ system bios address. process system bios code includes scanning io buses , dynamically assigning system resources (interrupts, io addresses) these io devices. , builds interrupt vector table these allocated system resources in system memory?

pretty yes. talking x96 though. x86 pc model bios scan , detect isa/pci(e) based peripherals. bioses on each peripheral (and/or main bios) setup respond bios interrupts. not in way bios , isnt first thing bios in list of tasks bios does.


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