From: Jim Witte (jswitte_at_bloomington.in.us)
Date: Sat Sep 11 2004 - 02:55:30 PDT
> native code execution on ARM-based PDAs would mean Einstein is
Depends on how many devices there are.
> hardware feature of a model). so i guess it would be a lot of work to
> support several models and write all the drivers.
Yeah, but that's what Apple intended from the beginning with the
platform driver approach.
> native code execution on POSIX would mean that you need a ARM
> processor(?). This would exclude x86 tablet PCs, wouldn't it. question
>> (Quoteing Paul:)
>> It is to improve the emulator by automatic recompilation to the
>> target processor. With this, we will get a decent speed, especially
>> considering that the code executed by NewtonOS is mainly in ROM and
>> hence we can recompile once. I think that JIT will do something
>> correct on 400 MHz+ PDAs around including Tablet PCs (even if Tablet
>> PCs with their x86 processors aren't very suitable for JITing ARM
>> processors).
> is: would people like to use a tablet PC as a newton replacement? I
I for one would like a Color NewtonSlate :) Einstein would also
allow for a "Newton NC" to finally come to light, in the form of
something the size of a Palm running NOS.
> How much performance would you lose in running the JIT emulation on an
> ARM processor (Pocket PC)? If it is below 50% (and could be improved
> in the future), I would vote for the JIT.
No idea. Also see above. Should be not much reduction.
Jim
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