[OpenBIOS] [PATCH] More complete PowerPC OpenFirmware emulation -- adding bus-frequency

[Tarl Neustaedter]

On 2011-Aug-10 07:13 , Mark Cave-Ayland wrote:
>
> Do sun4m systems actually benchmark the CPU within OBP? From Artyom's 
> blog for example, it appears that OBP attempts to benchmark the CPU 
> since its speed is listed as over 1GHz in QEMU in the Solaris kernel 
> -v output which makes me feel that it does.

Ahh... Some of the FCodes do, as I recall. They needed to calibrate 
empty do loops so they could get higher-resolution timing waits than 1 
millisecond.