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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Compiler doesn't respect 'Size for atomic object
Date: Fri, 22 Dec 2017 10:21:25 +0000
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Date: 2017-12-22T10:21:25+00:00
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Robert Eachus <rieachus@comcast.net> writes:

> On Thursday, December 21, 2017 at 5:02:07 PM UTC-5, Simon Wright wrote:
>> Robert Eachus <rieachus@comcast.net> writes:
>
>> It turns out that declaring NVIC_STIR as Unsigned_32 and writing
>> 
>>       NVIC_STIR := 16#ffff_ff00# or Interfaces.Unsigned_32 (IRQ);
>> 
>> doesn't generate an interrupt.
>
> It took me a while to figure out what you were saying.  I really need
> to find a way to post here that will allow things like boldfacing Ada
> reserved words.  After I parsed the or as Ada not English, I still
> have a problem. that I don't know the value passed as IRQ.  I assume
> it is a valid interrupt number for an unprivileged program.

In the example I posted upthread,

   type Interrupt_ID is range 0 .. 44;

> You should report this to Ada Core as a bug.  I'm just not convinced
> it is an Ada bug or a compiler front end bug, not a Cortex-M code
> generator bug.

Reported (via GCC bugzilla, since we're talking GCC 8); accepted; fixed
(r255958).