Different behaviour of RTEMS in QEMU/i386 and SPARC

Ralf Corsepius ralf.corsepius at rtems.org
Mon Oct 31 10:41:36 UTC 2011

On 10/31/2011 11:14 AM, Sebastian Huber wrote:
> On 10/31/2011 11:05 AM, Constantine "chicky" Giotopoulos wrote:
>> So it's a i386 issue and nothing can be done about it?
> You can use software floating point or a processor with an IEEE 754
> conform floating point unit (and use the appropriate GCC options to
> generate code for it, e.g. -mfpmath=sse).

Apart of this, RTEMS's paranoia's results should not be taken too 
seriously. The code is known to be questionable.

Several years ago, several people, who can be considered very 
knowledgable about the detail being involved ]1], had recommended RTEMS 
to drop this paranoia.


[1] IIRC, this discussion took place on the gcc list.

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