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Re: MATH_EMULATE




To: port-i386%netbsd.org@localhost

Subject: Re: MATH_EMULATE

From: "Douglas A. Tutty" <dtutty%porchlight.ca@localhost>

Date: Sun, 13 Jan 2008 19:40:52 -0500


On Mon, Jan 14, 2008 at 08:03:44AM +1100, Daniel Carosone wrote:
 
>  - Removing MATH_EMULATE from the kernel *doesn't* mean machines
>    without FPU can't run netbsd, or won't be supported. It just means
>    that they will need their binaries compiled with -msoft-float,
>    rather than relying on emulated cpu insructions.  This will be
>    faster anyway, and such machines these days will be used for
>    special-purpose cases and will benefit in other ways from
>    special-purpose builds specific to their needs. 

If that is the only difference, then would it be a trivial (and possibly
automated) to have an i386-nofpu port that tracks i386 except for the
compiler option?  Make a change to i386 and the automated part generates
the same change in i386-nofpu.  The source code would be the same, just
with different binaries.

Doug.




Follow-Ups:

Re: MATH_EMULATE
From: Perry E. Metzger


References:

MATH_EMULATE
From: Andrew Doran

Re: MATH_EMULATE
From: Vit Herman

Re: MATH_EMULATE
From: Daniel Carosone




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