[OpenBIOS] Latest SPARC64 & Milax update

Igor Kovalenko igor.v.kovalenko at gmail.com
Thu Jan 7 00:09:13 CET 2010

On Thu, Jan 7, 2010 at 1:50 AM, Mark Cave-Ayland
<mark.cave-ayland at siriusit.co.uk> wrote:
> Igor Kovalenko wrote:
>> Just looking for corner cases. Missed that disarm path is actually
>> documented in of1275 document in "alarm" section.
> I've seen your Qemu patches go through the list, but does this mean you have
> a patch for the OpenBIOS alarm word somewhere that we haven't seen yet?

Not sure I can even try this without working timers on sparc64
I think sparc (or maybe ppc as well) has good enough timer
support so openbios can progress in implementing alarm word.

Do we have a test case for alarm word? Is it really useful?

>>> In terms of the console, OpenBIOS currently doesn't use alarm interrupts
>>> there either - it just sits in a busy-wait loop checking an I/O port or
>>> similar to determine when a new character is incoming.
>> So we need i/o scheduler now (not critical at the moment) :)
> Yeah, I can't get too excited about this. It's not as if BIOS routines are
> super-performance critical...

Forth profiler... not sure it is a good idea :)

Kind regards,
Igor V. Kovalenko

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