Brad Roberts wrote:
On Thu, 10 Dec 2009, Walter Bright wrote:
Don wrote:
I had a further look at this. The compiler *is* creating doubles and floats
as signalling NaNs. Turns out, that there are slight differences between
processors in the way they treat signalling NaNs, especially between Intel
vs AMD. Intel Core2 triggers SNANs when loading floats & doubles, but
*doesn't* trigger for 80-bit SNANs. The Pentium M that I did most of my
testing on, didn't trigger for any of them. AMD's docs say that it triggers
for all of them.
Won't be too hard to fix.
How do we fix the CPU? ;-)
A soldering iron with a really sharp point?
Or maybe a sledgehammer.
I was thinking 220VAC might help!
