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From: Armin <ArminSchmidle@swol.de>
Subject: Ada83 and Ada95 interrupt handling
Date: 1999/02/23
Date: 1999-02-23T00:00:00+00:00	[thread overview]
Message-ID: <36D303B8.B1AB9A49@swol.de> (raw)

I am porting an Ada83 application to Ada95. In Ada83 there was a
construction
known as interrupt entry. Assume we have the following task (with two
interrupt
entrys from a DSP and a timer source)

 task type A_Task  is
      entry Startup;
      entry DSP_Interrupt;
      entry Timer_Interrupt;

      for DSP_Interrupt use at System.Value("16#xxxxxxxx#");
      for Timer_Interrupt use at System.Value("16#xxxxxxxx#");

      pragma Priority (Task_Priority.Of_A_Task);
 end A_Task;

 The task waits for the occurence of either the DSP or the timer
(to avoid blocking):
     ...
     ...
      select
         accept DSP_Interrupt; -- wait for interrupt of DSP
         ...
      or
         accept Timer_Interrupt; -- or of timer (to avoid blocking)
        ...
      end select;
      ...
      ...

How can I do the same thing in Ada95 ?

Thanks in advance !
Armin





             reply	other threads:[~1999-02-23  0:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-02-23  0:00 Armin [this message]
1999-02-23  0:00 ` Ada83 and Ada95 interrupt handling John Herro
1999-02-24  0:00 ` Matthew Heaney
1999-02-24  0:00   ` robert_dewar
1999-03-05  0:00 ` Robert A Duff
replies disabled

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