Re: MMX-MISC
On Tue, 20 Apr 1999, Tom Vermeiren wrote:
> Hi,
>
> it's probably a stupid question, but I want to ask it anyway.
> Why are the MISC-processors apparently used in domains like
> video-processing while they're not especially designed for it?
> In that prespective I think it's odd that a 'simple' instruction
> set like MISC can outrun specialized once like the MMX-IS.
Maybe:
Less is Moore. MMX might be a good idea if you make processors just
for image processing, but a CISC with MMX just gives you the worst
of two worlds; the MMX part is slowed down by the slow CISC part
while at the same time the extra MMX hardware makes the CISC even
slower.
A pure MMX (also known as a digital signal processor) is fast, but
not very general purpose. MISC is quite fast and general purpose.
Wrong?
/abo
