[Noisebridge-discuss] nVidia Tegra ARM/Geforce based Single Chip Computer

[d p chang]

d p chang <weasel at meer.net> writes:

> "Dr. Jesus" <j at hug.gs> writes:
>
>> On Tue, Jun 02, 2009 at 11:38:51AM -0700, d p chang wrote: 
>>> 
>>> anyway, i have no special knowledge of tegra, but an arm isn't doing
>>> 1080p decode in software for 10hrs on battery power (at least not from
>>> x264 or vc1 or one of the 'common' hd formats). if you want to do
>>> something w/ your machine other than graphics you may be sol (pointer
>>> chasing code isn't what gpus are good at).
>>
>> Which is why tegra has dedicated vector units for that stuff.  If it's
>> anything like the set-top box chipsets I've worked with, the ARM
>> probably just deframes the incoming stream and the decoding is done by
>> special code loaded into the vector units.
>
> there are (at least) two vector units on the tegra mumbling that google
> found me. the arm11 vfp and the nvidia goo.
>
>   http://www.nvidia.fr/object/product_tegra_600_fr.html

it turns out that i still have some friends actually working on this so
i could ping them for more details if people actually care about stuff
at this level.

\p
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