[rescue] Perverse Question
Frank Van Damme
frank.vandamme at student.kuleuven.ac.be
Tue Jun 10 17:17:11 CDT 2003
On Wednesday 11 June 2003 00:05, Joshua D. Boyd wrote:
> > Perfectly possible. I don't know crap about assembly (or even programming
> > :) ), the only thing I said was that x86 cpu's like the pentium mmx and
> > better have instructions made specifically for multimedia.
> No, you said:
> On Tuesday 10 June 2003 15:01, Joshua D. Boyd wrote:
> >> Also, many MP3 programs use hand optimized intel assembly (or they
> >> used to back when I was doing Mp3s on a 486). It might be that such
> >> a thing is needed to make the sparcs work well. Finally, it might be
> >> that Intel has an instruction that helps that sparcs don't.
> > They do, but not an 486 :-)
> > Think mmx...
> which to any reasonable person means that you are denying my claims
> about optimization for 486 level machines.
by "intel has an instruction that helps" I supposed you meant "intel has an
instruction that helps for multimedia", not "no matter how smart you are, you
can't make an mp3 decoder go faster on a 486 using assembly instead of C".
You said (2 replies ago):
- Also, many MP3 programs use hand optimized intel assembly (or they used to
back when I was doing Mp3s on a 486).
--> I don't deny that.
- It might be that such a thing is needed to make the sparcs work well.
--> No idea about sparc, optimisation or instructions whatsoever, so no
- Finally, it might be that Intel has an instruction that helps that sparcs
So I reacted: pentium mmx and higher have an instruction that helps: mmx.
> > btw, I find winamp pretty cpu-hungry...
> For many years now, Winamp used the reference decoder from that German
> institute, and I expect that they still do. It is straight C to my
> recall. I suppose they could have switched decoders again since I last
> heard. It was now many years ago that WinAmp could actually be called
Indeed. Was a mayor pita on my p133. Xmms scores lots better :)
Frank Van Damme http://www.openstandaarden.be
"Je pense, donc je suis breveti."
More information about the rescue