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Rep:Re: [f-cpu] Come back of loadcons



-----Message d'origine-----
De: Michael Riepe <michael@stud.uni-hannover.de>
A: f-cpu@seul.org
Date: 05/08/02
Objet: Re: [f-cpu] Come back of loadcons

On Sun, Aug 04, 2002 at 11:51:04PM +0200, nico wrote:
[...]
> For immediat data, i propose to add the idea to use 6 bits immediat
for
> each instructions (it does cost nothing more, you just use the field
of
> the register adress instead of the content of the register). I beleive
> that's a lot of small constant could be used in real code. So such
> immediat could be interresting (small multi dimentionnal array index
> calculation, stack index management,...) !

We already have 8-bit immediate forms for most instructions.

>>> Oups ! should reread the manual ! But it signifies that 2 bits from
the "opcode" are discared. So SIMD isn't used anymore ? Is that annoying
for software use ?

nicO

-- 
 Michael "Tired" Riepe <Michael.Riepe@stud.uni-hannover.de>
 "All I wanna do is have a little fun before I die"
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