On Tue, 2 May 2006, Avi Kivity wrote:
> Martin Mares wrote:
>> Hello!
>>
>>
>>> Perhaps people who developed kernel-level code in _both_ C and C++ would
>>> be qualified to speculate on that (I have, but apparently I don't have a
>>> clue).
>>>
>>
>> Well, what about just showing an example of kernel code in C++, which
>> you consider nice?
>>
>
> I don't have access to that code (which was closed source anyway).
>
> But it executed C++ code within a few cycles of entering the reset
> vector (no standard BIOS), including but not limited to: programming the
> memory controller (430MX chipset), servicing interrupts, hardware
> accelerated 2D graphics (C&T 65550), IDE driver, simple filesystem,
> simple windowing GUI, network driver (Tulip) etc.
>
Oh wow! I'm impressed. You, know back in the '50s we did something
like that. It was a dynamic abacus for fast math. Since it's
proprietary, I can't disclose its exact nature. It's even used
by the CIA.
> More recently I participated in writing a filesystem in C++. That's in
> userspace, but many of the techniques used in writing kernel code are
> necessary there (extreme robustness, can't assume infinite memory,
> locking, etc.)
Sure, kernel code is probably written using symbols, too. It's a
lot like user-space as well.
>
> There are C++ embedded kernels in http://www.zipworld.com.au/~akpm/ and
> http://ecos.sourceware.org/, but I haven't looked at them, so I can't
> say whether I consider them nice or not.
>
While you are at it, look at:
http://www.google.com/search?hl=en&q=bullshit
> --
> error compiling committee.c: too many arguments to function
>
Cheers,
Dick Johnson
Penguin : Linux version 2.6.16.4 on an i686 machine (5592.89 BogoMips).
New book: http://www.lymanschool.com
_
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