MEM F000h:xxx0h - PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Routing Table Specification v1.0
Size:	N paragraphs (N >= 2)
InstallCheck: scan for the signature string "$PIR" followed by a valid
	  PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Routing Table
Range:	any paragraph boundary within the range F0000h to FFFFFh


Format of PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Routing Table v1.0:
Offset	Size	Description	(Table M0090)
 00h  4 BYTEs	signature "$PIR"
 04h	WORD	version (0100h for v1.0)
 06h	WORD	table size in bytes
 08h	BYTE	bus number for PCI Interrupt Router
 09h	BYTE	device/function number for PCI Interrupt Router
 0Ah	WORD	bitmap of PCI-exclusive IRQs (bit 0 = IRQ0, etc.)
 0Ch	WORD	PCI vendor ID for compatible PCI Interrupt Router
 0Eh	WORD	PCI device ID for compatible PCI Interrupt Router
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	Miniport data
 14h 11 BYTEs	reserved (0)
 1Fh	BYTE	checksum (set to make 8-bit sum of bytes in entire structure
		  equal 00h)
--- optional data ---
 20h 16 BYTEs	first slot entry (see #M0091)
	...
     16 BYTEs	Nth slot entry


Format of PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Routing Table slot entry:
Offset	Size	Description	(Table M0091)
 00h	BYTE	PCI bus number
 01h	BYTE	PCI device number (bits 7-3)
 02h	BYTE	link value for INTA#
 03h	WORD	IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. bitmap for INTA#
 05h	BYTE	link value for INTB#
 06h	WORD	IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. bitmap for INTB#
 08h	BYTE	link value for INTC#
 09h	WORD	IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. bitmap for INTC#
 0Bh	BYTE	link value for INTD#
 0Ch	WORD	IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. bitmap for INTD#
 0Eh	BYTE	slot number (00h = motherboard, other = vendor-specific)
 0Fh	BYTE	reserved
SeeAlso: #M0090,#01260 at INT 1A/AX=B406h