Re: [Nasm-devel] [nasm:master] AVX-512: Add {evex} instruction prefix

[H. P. A. <hp...@zy...>]

On 11/28/2013 10:09 PM, Marat Dukhan wrote:
> Some time ago I asked about a mechanism for fine-grained selection of
> instruction forms, which is similar to what you do with {evex}, {vec2} and
> {vec3} keywords.
> Here are the details:
> 
> http://comments.gmane.org/gmane.comp.lang.nasm.devel/3347
> http://forum.nasm.us/index.php?topic=1517
> 
> 
> Maybe you could implement selection between other forms (e.g. REX vs
> no-REX) as a part of your new selection mechanism?

A lot of it probably comes down to someone willing to do the work.  The
selection mechanism itself isn't the hard part, but making sure it
doesn't break anything is a big deal.

	-hpa