Null references (oh no, not again!)

[Georg Wrede]

Georg Wrede wrote:
> Nick Sabalausky wrote:
>> "Frits van Bommel" <fvbommel at REMwOVExCAPSs.nl> wrote in message 
>> news:got4c1$2dhi$1 at digitalmars.com...
>>> Nick Sabalausky wrote:
>>>> "Georg Wrede" <georg.wrede at iki.fi> wrote in message 
>>>> news:gosa0h$mdd$1 at digitalmars.com...
>>>>> And now the inevitable $1M question: when can we get D on it????
>>>>>
>>>> As soon as we get a fully-working C-backend for one of the D 
>>>> compilers ;)
>>> LLVM has a C backend, so as soon as LDC is mature enough...
>>
>> Now that I think about it more, it would probably require more than 
>> just a D->C compiler. Storage on the Hydra's microcontroller (ie, 
>> Parallax's Propeller chip) is very tight (512 32-bit words per core 
>> (aka "cog"), plus a few tens of k shared ram that can't be used to 
>> store code unless you reserve some of the non-shared memory to page 
>> code in and out). Plus, of course, there's no streams or filesystem or 
>> OS, etc, so because of that and the low memory large chunks of 
>> phobos/tango would probably need to be removed, possibly including the 
>> GC. If there is indeed a C compiler for it, I'm not sure if or how it 
>> handles code paging or other such low-mem concerns.
> 
> http://en.wikipedia.org/wiki/Parallax_Propeller
> 
> "There is also a C compiler available from ImageCraft, the ICCV7 for 
> Propeller. Its supports the 32K Large Memory Model, to bypass the 2K 
> limitation per cog, and is typically 5 to 10 times as fast as standard 
> SPIN code."


So, yes, let's wait for LDC.

They also sell a Propeller QuadRover Robot. (Weight 89 lbs, 40.4 Kilos, 
gasoline powered. Top speed 12mph.)

http://www.youtube.com/watch?v=j1GK00oe170