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Re: [Gcl-devel] [Maxima] Out of range floating point number determinatio


From: Camm Maguire
Subject: Re: [Gcl-devel] [Maxima] Out of range floating point number determination
Date: Fri, 24 Aug 2012 17:57:00 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

Greetings!

Raymond Toy <address@hidden> writes:

> I think ia32 and x86_64 are the same.  You may need to detect whether you're 
> using x87 instructions or sse2 instructions.  Or you can do what cmucl
> does which is clear the bits from both control words. And even if your are 
> compiling for sse, there's no guarantee that some library routine
> somewhere isn't using x87 internally.
>  

What is the canonical way to detect if the sse instructions are
supported on the running cpu?  Or does one not bother these days?

Take care,
-- 
Camm Maguire                                        address@hidden
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"The earth is but one country, and mankind its citizens."  --  Baha'u'llah



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