lkml.org 
[lkml]   [1999]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: PATCH: (on Alpha) emulating missing instructions
Date
From
> We already have FPU emulation in kernel, and there

That should probably have been in userspace.

> exists a project to emulate MMX/3dnow!/EMMX instructions
> at http://www-sop.inria.fr/prisme/personnel/pion/progs/mmx-emu/
> Would there be any benefit if such a project were integrated
> into the kernel? Other than allowing 386's to run MMX apps
> without needing a recompile. :-)

No. The usage guidelines for MMX are explicit - you must test for the
availability and provide fallbacks. If code doesn't work on a box without
MMX and provides no option to do so then as far as the MMX programming guides
go - its broken.

Similarly the right answer for the Loki game is probably to build it with
different compiler options, not to stick some emulator in the kernel

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [from the cache]
©2003-2011 Jasper Spaans