The following chart gives a brief description of the Exec functions that
control task signalling.  See the Amiga ROM Kernel Reference Manual:
Includes and Autodocs for details about each call.


                    Table 22-1: Exec Signal Functions
  _______________________________________________________________________
 |                                                                       |
 |   Exec Signal                                                         |
 |    Function                         Description                       |
 |=======================================================================|
 |  AllocSignal()  Allocate a signal bit.                                |
 |   FreeSignal()  Free a signal bit allocated with AllocSignal().       |
 |    SetSignal()  Query or set the state of the signals for the current |
 |                 task.                                                 |
 |       Signal()  Signal a task by setting signal bits in its Task      |
 |                 structure.                                            |
 |         Wait()  Wait for one or more signals from other tasks or      |
 |                 interrupts.                                           |
 |_______________________________________________________________________|

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