[FFmpeg-devel] [PATCH] Faster CABAC H.264 residual decoding

[Ian Caulfield]

On Mon, Apr 28, 2008 at 4:39 PM, Siarhei Siamashka
<siarhei.siamashka at gmail.com> wrote:
>
> On Monday 28 April 2008, Ian Caulfield wrote:
>  > On Sun, Apr 27, 2008 at 12:38 PM, Siarhei Siamashka
>  >
>  > <siarhei.siamashka at gmail.com> wrote:
>  > >  Yes, I'm well aware of it. And I'm sorry for nitpicking, but you
>  > > probably wanted to say ARM11? As there may be other microarchitectures
>  > > compatible with ARMv6 ISA (Cortex cores are coming). I used words "some"
>  > > and "may" on purpose just because interlock behaviour is different for
>  > > different cores.
>  >
>  > Cortex cores are all ARMv7 (except the -M0, but that's v6M anyway...)
>
>  ARMv6 is a subset of ARMv7.

That's not strictly true - new versions of the architecture deprecate
or remove older features as well as adding new ones...

>  The general idea was that ARMv6, ARMv7, ARMv5TE are all just instruction
>  sets and such things as cycle counts, latencies or interlocks are not
>  directly applicable to them (this stuff is related to some specific
>  implementations in silicon such as ARM7, ARM9, ARM11, XScale, Cortex-A8,
>  Cortex-A9, ...)

Yep, quite true :)

Ian