Re: [Qemu-devel] [PATCH 08/19] target-alpha: use new float64_unordered() function

[Aurelien Jarno]

On Wed, Apr 13, 2011 at 08:53:27AM -0700, Richard Henderson wrote:
> On 04/13/2011 08:42 AM, Peter Maydell wrote:
> > On 13 April 2011 16:38, Richard Henderson <address@hidden> wrote:
> >> [ Odd, the original thread doesn't seem to have arrived here. ]
> >>
> >> On 04/13/2011 07:52 AM, Peter Maydell wrote:
> >>> So I think you want the _quiet version here. (And helper_cmpteq
> >>> needs to use float64_eq_quiet rather than float64_eq.)
> >>
> >> Yes, the _quiet version is what's needed for all comparisons.
> > 
> > Really all comparisons, including CMPTLT, CMPTLE?
> 
> Oops, no.  CMPTLE and CMPTLT in Table B-2 are on the next page,
> and clearly indicate that they signal InvalidOP for QNaN.
> 
> So it's just CMPTUN and CMPTEQ that should not signal on QNaN.
> 

Thanks to both of you for digging into the manuals, the information I
have found in the manual I have were not so clear. I'll fix that in the
next version.

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net