Category: expansion bus BIOSes
INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE AX = B102h CX = device ID (see #00735,#00742,#00743,#00873,#00875) DX = vendor ID (see #00732) SI = device index (0-n) Return: CF clear if successful CF set on error AH = status (00h,83h,86h) (see #00729) 00h successful BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 func) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call device ID FFFFh may be reserved as a wildcard in future implementations the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation all devices sharing a single vendor ID and device ID may be enumerated by incrementing SI from 0 until error 86h is returned SeeAlso: AX=B182h