[fedora-arm] armv7hl requirements

Gordan Bobic gordan at bobich.net
Thu May 5 08:47:54 UTC 2011


Jon Masters wrote:
> On Thu, 2011-05-05 at 08:23 +1200, Michael Hope wrote:
> 
>>>> *). ARM VFP3 hardware floating point (h)
>>>> *). ARM NEON Architecture
>>>> *). Thumb2 interworking
>> I don't think you have to anything explicit here.  Thumb-2 and ARM
>> code interoperate just fine.
>>
>>>> *). Your suggestion here?
>> *) Hard float.  Never worse than soft float, sometimes much better.
> 
> Note that hard float is implied by VFPv3, and by the subject being
> "armv7hl". The intention is to use the aapcs-vfp binding but the only
> real debate is whether to use the D16/32 option. That comes down to
> whether we want to focus on really great A15 plus or be more inclusive
> of various minimal ARMv7 systems that are already out there today.
> 
> Perhaps we need a matrix of known capabilities in v7 hardware. I guess
> that's another wiki page I should create, starting with my Beagle, Panda
> and Efika systems, but a pointer to AC100 specs would be cool (I found
> various reviews on it, and wow it's pricey compared to e.g. Efika) :)

Only since Efika price dropped by 40%. The pricing was reasonably 
comparable before (bearing in mind that AC100 is 2x 1GHz vs 1x 800MHz). 
Sadly, the AC100 has been discontinued, but other machines based on the 
same SoC are just coming out, e.g. Trimslice.

Gordan


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