[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Rep:Re: [f-cpu] Manual 0.2.6



And what about an inter-chunk shift ? It will come will all the missing
inter chunk operation.

nicO

-----Message d'origine-----
De: cedric <cedric.bail@free.fr>
A: f-cpu@seul.org
Date: 01/08/02
Objet: Re: [f-cpu] Manual 0.2.6

> * Show me the proposed instruction form.

I have something different to propose. We currently didn't have any 
instruction to load chunk after the 64 bits. Currently we use the
shifter to 
do this and in fact it's not a good idea, if we want to write evolutive
code.

An idea is to propose a loadchunk that work like loadcons, but with
every
chunk size. With this we are scalable as much as we want and we can do 
what we want with any registers size. And if we add this instruction,
the
loadconsp will be seen like a immediate form of loadchunk.

So what about this idea ?

> The "shifting loadcons" does the reverse and the shifting cost
> is put in the critical datapath of the Xbar. And shifting has
> a cost (don't tell me "it's only a mux").
;-)

Cedric


*************************************************************
To unsubscribe, send an e-mail to majordomo@seul.org with
unsubscribe f-cpu       in the body. http://f-cpu.seul.org/

 
______________________________________________________________________________
ifrance.com, l'email gratuit le plus complet de l'Internet !
vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP...
http://www.ifrance.com/_reloc/email.emailif


*************************************************************
To unsubscribe, send an e-mail to majordomo@seul.org with
unsubscribe f-cpu       in the body. http://f-cpu.seul.org/