Re: [Qemu-devel] ARM

[Daniel Jacobowitz]

On Thu, Jul 10, 2003 at 06:45:03PM +0200, Laurent Desnogues wrote:
> > Warning: no FPU emulation is done. I just added the necessary code to 
> > skip the few FPU instructions present in the libc. If anyone has ideas 
> > about FPU on ARM, I am interested
> 
>    When I wrote my ARM v5TE simulator, ARM ISA documentation only
> talked about the VFP unit which had no silicon implementation...
> It looks like there are multiple other FP units on ARM, kind of
> messy!  So what specific implementation is required for QEMU?

The Linux/ARM ABI specifies the use of FPA byte-ordering for floats. 
But I wouldn't shed any tears if QEmu didn't bother to implement the
relevant coprocessor.  FPA's really annoying; the byte ordering is
big-byte-little-word (or the other way around).

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer