[FFmpeg-devel] [RFC] An improved implementation of ARMv5TE?IDCT (simple_idct_armv5te.S)

matthieu castet castet.matthieu
Fri Sep 14 19:39:21 CEST 2007


Siarhei Siamashka wrote:
> On 14 September 2007, Michael Niedermayer wrote:
>> btw do you have a refereence which lists the number of cpu cycles per
>> instruction?
> 
> ffmpeg doc/optimization.txt, 'ARM-specific' section
> 
The link seems dead, but for arm9e you could find the timing on 
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0240b/CIHIEGAB.html 
( http://infocenter.arm.com/help/topic/com.arm.doc.ddi0240b/DDI0240A.pdf )


Matthieu




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