INT 7C - SK-UPPS Data Link Interface API - DLI 2.8+ - INTERRUPT REQUEST
        AX = 0017h
Return: AX = completion code (see AX=0001h)
Notes:  not supported by all DLIs (will return AX=FFFFh, if not supported).
        must be called with interrupts disabled; when the client re-enables
          interrupts, an interrupt will be generated and reported to the client
          through an Event Upcall (see AX=0007h [EV_ISR_START/EV_ISR_END])
SeeAlso: AX=0007h

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