Can i use D for OS develop.

[BCS]

Reply to kris,

> knott wrote:
> 
>> Paul Collier Wrote:
>> 
>>> knott wrote:
>>> 
>>>> Hello. Before i start, i must apologize for my poor English.
>>>> 
>>>> Can i use D language for OS development(Non-core - user mode
>>>> devel)?
>>>> 
>>> If you're talking about OS development, there are at least two
>>> projects to write a kernel in D. You can see them at dsource.org. If
>>> you're talking userspace development, I think you'll find that 95%
>>> of D projects already run in userspace ;) If you're talking about
>>> something in the middle, you can always bind D code to C APIs and
>>> disable the garbage collector if needed.
>>> 
>> Im talking about a userspace development in system which in early
>> stage of development. I want to write program on system which have
>> only small(not full) C library.
>> 
> Tango would rather not have the full C lib either. It rather
> deliberately uses only a handful of clib calls, and a (small)
> replacement for those has been on the cards for years. We just never
> got the time to do that.
> 
> We'd be very interested in a lightweight replacement for those few
> clib calls, written in D
> 

How hard would it be to Have tango be running in D right up to the when system 
calls jump into kernel space?

with templates you could wrap the nitty gritty of systems calls real nice

R SystemCall(uint number, R, A...)
{
   asm
   {
      // whatever
   }
}

alias SystemCall!(SystemCallNumbers.open, int, ...) open;
...