RE: MMX-MISC
As I understand it,
Ultra Technology's video coprocessor in the F21 chip is
not constrained by the I/O or memory speed for some operations
like converting video out data to analog voltage to drive a monitor.
Besides that, the Forth words run on a Forth machine to do video memory
calculations like AND OR NOT. Besides that, the reason that
memory speed is the main video speed limit is that the F21 processor
and video coprocessor is very fast hardware clock speed compared to
a MMX chip.
John G
Austin
> -----Original Message-----
> From: Tom Vermeiren [mailto:Tom.Vermeiren@rug.ac.be]
> Sent: Tuesday, April 20, 1999 4:12 AM
> To: MISC@pisa.rockefeller.edu
> Subject: MMX-MISC
>
>
> 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.
> Yes, I know, MMX is a failure on its own, but there are made
> several efforts over the last years to support multimedia in
> hardware. So, I'm just curious why of all domains the processors
> are used on images and why they're so good at it.
> Also thanks to everyone who helped me out last time with
> my mails. You know who you are and know that I appreciated the
> answers.
>
> Greetings, Tom.
>
