[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
i386 Multilib Options
- Date: Mon, 28 Mar 2011 16:27:58 -0500
- From: joel.sherrill at OARcorp.com (Joel Sherrill)
- Subject: i386 Multilib Options
I don't think we have looked at multilib options
for the i386 in a while. Should the set be adjusted?
I currently see
We have previously agreed that soft-float is
important and leaned to keeping the i386.
The i486 class is a distinct improvement on
that but I don't know if it really is worth
a multilib. Any true instruction or tuning
That leaves us with pentium and pentiumpro.
Are these the best selections? Worth keeping?
Should we switch from -mtune to -march? Does
this buy any performance improvements.
We have pc386 variants with SSE enabled. Is this
enough? Do we need MMX or SSE2/3 BSPs. Does this
require something in RTEMS?
Just trying to take a lay of the land from the
community's perspective and derive some requirements.
Joel Sherrill, Ph.D. Director of Research& Development
joel.sherrill at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985