[bitc-dev] Bitc and Simd

[Ben Kloosterman]

You can add no MMU to the complaints list  , Arm chips that do include it
use 20-25% of the die for it and are many times more expensive for the same
performance as non MMU models.

 

Ben

 

From: bitc-dev-bounces at coyotos.org [mailto:bitc-dev-bounces at coyotos.org] On
Behalf Of Jonathan S. Shapiro
Sent: Sunday, August 15, 2010 3:57 AM
To: Discussions about the BitC language
Subject: Re: [bitc-dev] Bitc and Simd

 

On Sat, Aug 14, 2010 at 10:50 AM, orthochronous <orthochronous at gmail.com>
wrote:

Additionally the
NEON unit on ARM uses only the L2 cache, requiring explicitly making
the L1 cache coherent with L2 before accessing any of the data in the
main part of the CPU...


Good to know that ARM is consistent at something. They're developing deep
expertise at fucking up concurrency. Weak memory consistency, weak cache
coherency, and (until recently) a non-antialiased virtual cache.

Could somebody please form a chip company that has architects on staff!
 

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