Re: [Amforth-devel] benchmarks ;=)

[<ha...@hu...>]

Joh,

if you meant to write 1/100s (10 ms), using Timer0 will work just
fine!  I had no problems running it at higher speeds, too, with my
interrupt handler written in Forth.

-Hans

2007/4/2, joe...@t-... <joe...@t-...>:
> Hi Matthias,
>
> what is your proposal to generate a (1/100us) clock (for e.g. the output
> of a bit pattern ) in amforth? (as you wrote, the timer int. isn't
> usable for such speed)
> What speed can I expect when I use the word pause? Is there a guarantee
> how often the word
> is called per ms? Because the pulses should come in a certain time
> distance.
>
> Best regards
> joh
>
>
> -----Original Message-----
> > Date: Sun, 01 Apr 2007 11:06:59 +0200
> > Subject: [Amforth-devel] benchmarks ;=)
> > From: Matthias Trute
> > To: Everything around amforth
>
> > -----BEGIN PGP SIGNED MESSAGE-----
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> >
> > Hi,
> >
> > I just run a stupid benchmark with the fib word from the blocks
> > directory. 24 fib gives the biggest usable number (46368) on amforth.
> >
> > Running a loop with 100 iterations took roughly 3'30 on an atmega32 at
> > 16MHz. The sparring partner I choose is gforth (0.6.2, comes with
> > ubuntu) on my 2GHz P4 system. To balance the frequency difference,
> > gforth had to run 125 times the 100 loop. That took around 1'30.
> >
> > What does it tell us? Well, nothing perhaps. Or that amforth executes
> > 1 forth "instruction" where gforth has 2, scaled with cpu cycle clock.
> >
> > Matthias
> > -----BEGIN PGP SIGNATURE-----
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> >
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