[FFmpeg-devel] [PATCH] Some IWMMXT functions for libavcodec #2

Siarhei Siamashka siarhei.siamashka
Tue May 20 06:15:24 CEST 2008


On Tuesday 20 May 2008, Siarhei Siamashka wrote:
[...]
> ... Now we can shift all the B operations relative to A down and get the
> following: 
>
> A1
> .. - empty slot
> A2
> B1
> A3
> B2
> A4
> B3
> B4
>
> This code will take 9 cycles.

Except that will be actually 10 cycles and the following pattern, sorry for
typo:

A1
.. - empty slot
A2
B1
A3
B2
A4
B3
.. - empty slot
B4

-- 
Best regards,
Siarhei Siamashka




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