The Real, Protected, Long mode assembly tutorial for …
Hi, I am writing an OpROM BIOS, which has to access some onboard device registers with PCI BAR more than 32 bits, for example 0x98761234000c. Since these register addresses are 'physical'(48-bit BAR assigned by system BIOS), how do I arrange the 4-level paging in order to access these device registers in long mode?
