Subject: Re: NetBSD plays .wav ultra fast
To: Martin Husemann <firstname.lastname@example.org>
From: Brett Lymn <email@example.com>
Date: 07/20/2001 21:21:04
According to Martin Husemann:
>That's arch dependend and not generally true. On sparc64 for example the
>kernel already does all the bookeeping and uses VIS instructions (roughly an
>MMX equivalent) in -current. On i386 it doesn't, so MMX instructions can
>not be used.
Hmpf - must have just been wishful thinking on my part then... it
matters not really, the instructions can be emulated by normal
processor instructions just that they take longer to get the same
effect. Integer multiply and addition is all that is really needed to
get the job done.
Brett Lymn, Computer Systems Administrator, BAE SYSTEMS