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