[Ffmpeg-devel] int vs. float: Hard Numbers

matthieu castet castet.matthieu
Sat May 21 22:00:56 CEST 2005

Luca Barbato wrote:
> matthieu castet wrote:
>>Well, you could just use mftb and mftbu to read the time base counter on
>>PPC. (on 64 bits mftb read 64 bits, but on 32 bit you need to read the
>>upper bits with mftbu and lower bits with mftb).
> One of the interesting stuff about pmon is that you can get other
> statistics like cache miss, completed instructions, cpu cycles and so on.
> see http://www.freescale.com/files/32bit/doc/ref_manual/MPC7450UM.pdf
> for the long list
There is also PMC for x86 (rdpmc, rdmsr instruction), but that's very 
complex as the spec change for each cpu model (see perfctr drivers).


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