Re: [f-cpu] magnetude comparison

[Michael Riepe <michael+fcpu@stud.uni-hannover.de>]

Hi again,

On Tue, Mar 02, 2004 at 01:13:56AM +0100, gaetan@xeberon.net wrote:
[...]
> vhdl world is so wonderful...

Yes, definitely. ;)

[...]
> >>(damned, why there isn't mathml supported by all email reader)
> >
> >Because some of them still run in text mode?
> >
> arg!!! some people still use 'mail' command?

Mutt - the best e-mail client money can't buy :)

[...]
> >If you use a shifter that requires a binary encoded shift count :)
> >
> >My omega network shifter can also be controlled by bit vectors that
> >represent numbers like (2**shift_count)-1.  They are much easier to
> >generate in this case: a single left-to-right cascade_or is sufficient.
> >That will take d=3/t=3 for a 64-bit operand -- half a stage.
> >
> >  
> >
> i don't know what an omega network it, i though my LOP was a good thing...

It is, because it's still faster (no late shift count calculation at all).

[...]
> >>but if i do
> >>f = (a and b) or (c and e)
> >>then i should estimate it d=2/t=2 (right?)
> >
> >That depends on the target, but d=2/t=2 -- meaning separate AND and
> >OR gates -- is the safest choice.
> >
> that's not very funny, i have some control logic (with some "complex" 
> boolean equations)....

How complex?  How many input variables, at most?

[...]
> i will take some nights to digest it i think... but it's very interesting...
> but why not writing it down (for example in the wiki), then any new 
> rooky that may come will not
> ask you that again and again...

Because I'm a lazy *censored*? ;)

-- 
 Michael "Tired" Riepe <Michael.Riepe@stud.uni-hannover.de>
 "All I wanna do is have a little fun before I die"
*************************************************************
To unsubscribe, send an e-mail to majordomo@seul.org with
unsubscribe f-cpu       in the body. http://f-cpu.seul.org/