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Date:      Thu, 15 Jan 1998 12:05:50 -0500
From:      Ken Hansen <khansen@njcc.com>
To:        Archie Cobbs <archie@whistle.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: what does MMX mean?
Message-ID:  <34BE41EE.E3B@njcc.com>
References:  <199801142355.PAA05051@bubba.whistle.com>

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Hello,
	MMX processors have new instructions (over "classic" pentiums)
and have increased on-chip caches (32K instead of 16K IIRC).

	In my *opinion*, an MMX processor is probably worth the price
difference, even if you don't use the additional instructions.

	Also, when MMX is used by a non-Intel mfg., it may not mean
the on-chip cache is 32K, that may just be an Intel-specific feature.

Hope this helps,

Ken
khansen@njcc.com

Archie Cobbs wrote:
> 
> What, exactly, does MMX mean?
> 
> Does it mean the processor has NEW instructions for DSP type operations?
> Does it speed up EXISTING instructions? Integer or floating point (or both)?
> 
> Thanks,
> -Archie
> 
> ___________________________________________________________________________
> Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com



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