INT 1A - PCI BIOS v2.0c+ - PCI BUS-SPECIFIC OPERATIONS AX = B106h BL = bus number EDX = Special Cycle data Return: CF clear if successful CF set on error AH = status (00h,81h) (see #00729) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Note: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call SeeAlso: AX=B186h,INT 2F/AX=1684h/BX=304Ch