-391,397
*      A SINGLE WORD INSTRUCTION WAS AT THE INTERRUPT ADDRESS, THE NEXT
*      WORD IS IN THE INSTRUCTION BUFFER BUT SHOULD NOT BE PROCESSED.
*      PROCESSING OF THIS WORD IS INHIBITED BY TRANSFERRING TO INTBAS
*      IF CINTF=1 AND IM=6.  IF CINTF=0 AND NO INTERRUPT IS PENDING, THE
*      INSTRUCTION IS DECODED.  IF AN INTERRUPT IS PENDING AND CINTF=0
*      OR IM NOT =6, CONTROL GOES TO INTBAS+7, WHERE THE INTERRUPT
*      MICROPROGRAM IN I/OCS IS INITIATED.  IF THE INTERRUPT WASN'T
*      REALLY AN INTERRUPT, BUT INSTEAD WAS A DMA REQUEST, INTERRUPT
*      PROCESSING MUST BE ABORTED AND THE PIPELINE RESTARTED.  IF IT
*      REALLY IS AN INTERRUPT, CONTROL GOES TO INTBAS+1 WHERE INTERRUPT
*      SERVICING IS COMPLETED.
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