I tried arm-2005q3-2-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
and ts7800-crosstool-linux-gnueabi-2005q3-2.tar.gz from here-
ftp://ftp.embeddedarm.com/ts-7800-linux-sd/cross-toolchains/
I don't think the Marvell chip in the 7800 has Maverick crunch, as
that was a Cirrus Logic specific FPU implementation. Does the Marvell
chip have an FPU?
So far, I've only succeeded in clocking my code compiled natively on
the 7800. I tried -msoft-float there, but got the following error:
/usr/bin/ld: cannot find -lfloat
-mike
--- In Zombi process <>
wrote:
>
> what toolchain are you using ? you had to tried with a
> toolchain that use maverick (the only flag that work
> for the moment are softfloat).I do know how much it's
> the differen in time but it had to do the float
> operation faster !!.
>
> bye
> --- Michael <> escribió:
>
> > > Strangely, benchmarking 1000 iterations of my
> > algorithm, I got almost
> > > exactly the same performance as with the 7260-
> > about 54ms per
> > > iteration. I expected that even if EABI wasn't
> > doing it's job, I
> > > would at least get a 2.5 times speed up from the
> > clock rate. My test
> > > code reads a line (maybe 100 bytes) from a data
> > file in the NAND flash
> > > once per iteration; otherwise, I can't think of
> > anything outside the
> > > processor that takes any time.
> >
> > I'm haven't done anything with floating point so I'm
> > not too familiar with
> > FP performance on the TS-7800, but I definitely
> > would recommend trying your
> > test without doing anything else like reading the
> > flash, so as to eliminate
> > that as a possible variable.
> >
> > >
> > > Has anyone else benchmarked floating point on the
> > 7800, and gotten
> > > better results? Any idea what I might be doing
> > wrong? Thanks,
> > >
> > > -Mike
> > >
> > >
> >
> > --Michael
> >
> >
>
>
>
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