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