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

Tarl Neustaedter tarl-b2 at tarl.net
Wed Aug 10 18:50:43 CEST 2011

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 

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