[Discuss] IEEE doubles

[Alan W. Irwin]

On 2007-06-25 21:41-0700 Daniel M German wrote:

>
>
> Hi Alan,
>
> I was curious, so I ran your program in both PowerPC and Intel. In the
> PowerPC it generated:
>
>   1.00000e-200    1.00000e+250     0.00000e+00
>    0
>    0
>           -inf
> ----------------------------------------------------------------------
> In Intel:
>
>   1.00000e-200    1.00000e+250     0.00000e+00
>    1
>    0
>           -inf

Thanks, Daniel, for the PowerPC result which is consistent with my working
hypothesis that this problem is specific to the 80-bit floating-point
registers used in Intel hardware.  I will give convincing test results
about those 80-bit registers in the next e-mail.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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