Decision Table

The following decision table indicates which action in the lower portion of the table is taken given the conditions in the upper portion of the table.

┌──────────┬───────┬───────┬───────┬───────┬───────┐
│PE =      │   0   │   1   │   1   │   1   │   1   │
├──────────┼───────┼───────┼───────┼───────┼───────┤
│VM =      │   -   │   0   │   -   │   0   │   1   │
├──────────┼───────┼───────┼───────┼───────┼───────┤
│CPL       │   -   │≤IOPL  │   -   │>IOPL  │   -   │
├──────────┼───────┼───────┼───────┼───────┼───────┤
│IOPL      │   -   │   -   │  = 3  │   -   │  < 3  │
├──────────┼───────┼───────┼───────┼───────┼───────┤
│IF  0    │   Y   │   Y   │   Y   │       │       │
├──────────┼───────┼───────┼───────┼───────┼───────┤
│#GP(0)    │       │       │       │   Y   │   Y   │
└──────────┴───────┴───────┴───────┴───────┴───────┘

Notes:

• Don't care

  Blank

  Action Not Taken
  Y
  Action in Column 1 taken

  ---

  [Back: Operation]
  [Next: Flags Affected]