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From: Luke A. Guest <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: Trigonometric operations on x86 and x64 CPUs
Date: Fri, 16 Dec 2016 14:00:20 +0000
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Robert Eachus <rieachus@comcast.net> wrote:
values for e, and the logs to convert to base 2 or 10 are all 66 bit. 
Maybe some future instruction set extension will provide correct versions
of the trig functions without the 32-bit mode requirement.
> 

Surely long mode has fpu instructions that can be used?