Re: IEEE 754 compliance

[Dave <dfeustel mindspring com>]

The 754 standard is being updated and the result is being
voted on now, I think. It's called 754r and can be found
on the web. 16-bit and 128-bit floating point formats are
what led me to it.

Dave Feustel

On Tue, May 13, 2008 at 08:50:45AM -0400, Prof J C Nash wrote:
> There are some resources for testing by Nelson Beebe at
> http://www.math.utah.edu/~beebe/software/ieee/timops.html  From what I 
> understand, the main issues are handling of edge effects (underflow, 
> overflow, divide by 0, etc.) where compilers may do some things 
> different from the standard's prescription. There is, of course, an 
> interaction here with hardware that may not provide ways to get at the 
> bits (literally).
>
> In my efforts to set up some Gnumeric test worksheets, I've tried to 
> contact Beebe without success. He may have retired (I believe he is 
> older than I, and I'm on the brink of retirement from teaching, but not 
> from Gnumeric!) 
>
> If there is interest, and in particular an example where IEEE754 may be 
> important, I'll be happy to dig a bit. I was a corresponding (ie vote by 
> mail) member of the IEEE 754 committee back in late 70s. Given the 
> arcane detail, it will take a bit of review for me to get fully up to speed.
>
>
> JN
>
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