Hi,

The fpu support is to have NO f instructions.  Ie, no fadd, fsub, etc.

The normal fpu support  is to have the finstructions in line.
This means that machines with fpus run at full speed.  Machines
without fpus trap those instructions to the fpu emulator
and run slower.  LC040s run badly :-)

The fpuless build will run slower on a system with
a fpu, but probably about the same speed on a system
without a fpu.  It should not matter what the mask level
of your LC040 is.

If you continue to buid with -msoft-float then all
should continue to be happy.

cheers

bruce
Riccardo Mottola <zuse@libero.it> wrote:
> I have here a LC 475 collecting dust.
> 
> how is FPU emulation supported? My cpu has mask 02E23G. Gathering from the
> past discussion I could not deicde how broken that CPU is. Is it ture that
> there are "broken" and "really broken" LC040?
> 
> I tried starting the sysinst but it seg-faults immediatly. As does a "df -k"
> 
> I have seen the effort of the "LC" port and I will try it, howewer, since
> sysinst fails, the only way is doing "traditional" install, right?
> 
> Is there a way to set that every succesive use of "gcc" will compile using
> fpu-emu? both for "ports" as for normal compilation.
> 
> -ric
> 
> on 5/28/03 11:20 PM, Dan Willson at Dan.Willson@VPUADV.UAB.EDU wrote:
> 
> > Looks like no one noticed, but the correct URL is:
> > http://edoneel.chaosnet.org/Downloads.html