testbios and the system timer

ron minnich rminnich at lanl.gov
Thu Jun 3 10:25:01 CEST 2004


On Thu, 3 Jun 2004, Li-Ta Lo wrote:

> richard's point is that the emulator is much slower than the
> timer. The delay loop is facing overflow problem with the
> "emulated" io access to the "physical" counter.

oops, sorry. Too much email this morning. I did not read his note 
carefully enough.

Actually I'm surprised that the emulator is that much slower than an old 
8086. 


OK, now what do we do ...

Ah, we could use the TSC, right?

ron




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