[OpenBIOS] Milax and the alarm word

[Mark Cave-Ayland]

Hi all,

With the previous commit, I seem to be getting to the point where files 
are now being read from the ISO into memory. However, on Milax things 
are still failing because the Fcode tries to set up a callback function 
repeated every second using the "alarm" word.

Does SPARC64 have a way of counting elapsed time (some kind of clock 
tick register) so that it would be possible to measure this in the main 
loop? Or alternatively set up some kind of timer interrupt after X ms?

Incidentally I notice that the latest Solaris code doesn't seem to use 
alarm anymore; Nick - does your Nevada boot get any further with current 
OpenBIOS SVN?

ATB,

Mark.