[FFmpeg-devel] [PATCH] Faster CABAC H.264 residual decoding
Mon Apr 28 17:47:49 CEST 2008
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 :)
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