INT 1A - PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.1+ - SET PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. (32-bit)
	AX = B18Fh
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	CH = number of IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. to connect
	CL = number of interrupt pin (0Ah=INTA# to 0Dh=INTD#) to reprogram
	DS = segment/selector for PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. data
	    (real mode: F000h; 16-bit PM: physical 000F0000h; 32-bit PM: as
	    specified by BIOS32 services directory)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (59h) (see #01243)
Note:	assumes that the calling application has determined the IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. routing
	  topology (see AX=B10Eh), has ensured that the selected IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. will not
	  cause a conflict, and will update the interrupt line configuration
	  register on all devices which currently use the IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. line
SeeAlso: AX=B10Eh