[linux-audio-dev] PPC Linux, precision timing problem

[Paul Davis]

>> Been poking at a PPC based linux system lately. Now, if I've been correctly 
>> informed (and my photagrafik memory isn't playing tricks on me) the Apple PP
>C 
>> platforms lacks an RTC compatible device.
>> 
>> Major stumbling block... how does one accomplish an high resolution timer in
> 
>> this environment, any ideas?
>> 
>> What does a Mac use?
>
>It's called the Time Base register.  See the CPU frequency scaling
>thread from last month's jackit-devel archives for a discussion.

unrelated, i believe. the RTC on intel machines is basically a crystal
with a configurable interrupt interval. AFAIK, the time base register
on PPC is equivalent to the TSC on x86, and if so, it cannot generate
interrupts. 

--p