On 11 November 2010 19:21, Nathan Froyd <froy...@codesourcery.com> wrote: > On Thu, Nov 11, 2010 at 06:23:58PM +0000, Peter Maydell wrote: >> The ARM architecture mandates that converting a NaN value to >> integer gives zero. This isn't the behaviour of the SoftFloat >> library, so NaNs must be special-cased. > > This is correct, but it's really only correct if FP traps are disabled.
True (in that if you take a trap you don't return any result at all), but isn't it a bit of a red herring for this patchset given that qemu doesn't implement trapping on FP exceptions? I can make the commit message read "gives zero (if Invalid Operation FP exceptions are not being trapped)" if you think that would be clearer. -- PMM
