Run the softvfp.out files on the Nokia 770, the plain vfp.out files on the N800.





source here: http://people.bath.ac.uk/enpsgp/machar.c
gcc -DDP -DTEST machar.c -o machar_test.softvfp.out
gcc -DDP -DTEST -mfpu=vfp -mfloat-abi=softfp machar.c  -o machar_test.vfp.out

source here: http://home.iae.nl/users/mhx/flops.c
gcc -DUNIX -mfpu=vfp -mfloat-abi=softfp flops.c -o flops.vfp.out
gcc -DUNIX flops.c -o flops.softvfp.out

source here: http://www.netlib.org/benchmark/dhry-c
gcc -DTIME -mfpu=vfp -mfloat-abi=softfp dhry_1.c dhry_2.c -o dhry.vfp.out
gcc -DTIME dhry_1.c -o dhry_1.softvfp.out

source here: http://www.netlib.org/benchmark/whetstone.c
gcc whetstone.c -lm -o whetstone.softvfp.out
gcc -mfpu=vfp -mfloat-abi=softfp whetstone.c -lm -o whetstone.vfp.out

source here: http://www.netlib.org/paranoia/paranoia.c
# can't remember whether this needs -lm
# try it without and see whether it fails to compile
gcc paranoia.c -lm -o paranoia.softvfp.out
gcc -mfpu=vfp -mfloat-abi=softfp paranoia.c -lm -o paranoia.vfp.out






Added various optimisations -O0 through to -O3 and -Os after a comment from Serge.
Of course, to build with the various optimisations, just add the flag somewhere in the command.

The level of optimisation is indicated by the filename.





The paranoia and machar tests are there because I'm trying to sort out the 
Octave lo_ieee_init: unrecognized floating point format! message that's seen at startup
on all ARM machines. See mailing list post here: 
https://www.cae.wisc.edu/pipermail/help-octave/2007-January/002649.html

The benchmarking programs are there just out of interest. There's some comparison data
avilable for the Zaurus range of ARM linux pdas here: 
http://www.oesf.org/forums/index.php?showtopic=3451&hl=