X86 cpu without a FPU - Vortex86sx
bruce at cran.org.uk
Sun Feb 17 22:49:45 UTC 2008
Doug C wrote:
> I am trying to build FreeBSD 5.5 or 6.3 to run on a board that uses the DMP
> Vortex86sx SOC. This chip looks like a 486sx, no FPU. Is there a way to make
> a build that uses software emulation for the FPU, like the old days? I do
> not see anything in the .cong file that helps. I am trying to end up using
> pfSense with it. Or what old version could work with this chip?
> Thanks for any help.
> Doug Cross
There was a thread about this last month - see
I think the outcome was that it's certainly possible to get the userland
built with FPU emulation but there's more work required in the kernel
since the MATH_EMULATE/GPL_MATH_EMULATE options were removed in 2003.
More information about the freebsd-questions