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ERRORS:

Besides handling I/O Interrupts, the I/O-Error Handler must also handle the following error condition:
  1. Unsupported Op-Code
  2. Divide by Zero
  3. Overflow, if the Overflow Mask is ON
  4. An unexpected non-zero SS code
  5. A word-count overflow during block transfers using the word count as a guard.


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A.Daviel,TRIUMF