Re: earmv6hf IEEE754 underflow problem

[Tobias Nygren <tnn%NetBSD.org@localhost>]

On Mon, 23 Feb 2015 20:10:59 +0100
Martin Husemann <martin%duskware.de@localhost> wrote:

> On Mon, Feb 23, 2015 at 07:26:40PM +0100, Tobias Nygren wrote:
> > Hi!
> > 
> > I am using the evbarm-earmv6hf port on a Raspberry Pi. I have a problem
> > with floating point underflow. Is this port supposed to implement full
> > IEEE754 behaviour including underflow exceptions?
> 
> Easy check:
> 
> cd  /usr/tests/lib/libm/
> atf-run t_fenv | atf-report
> 
> and check for output like:
> 
>     feenableexcept: [0.016152s] Skipped: FPU does not implement exception handling
>     fegetexcept: [0.015173s] Skipped: FPU does not implement exception handling

Ah, I see. That explains the problem, thank you. But the BCM2835 VFP
hardware itself does have some exception support, doesn't it?