two egcs (gcc ?) bugs for you

[Martin von Loewis]

> extern long realtime;
> 
> void rttask1(void) {
> 	  int count;
> 	  for (count=1;;count++)
>    {
> 		   print(count, 800+80);
>      RTTASK1.time = realtime  +  606200;
> 		   quantumDone();
>    }
> }
> 
> long realtime is constantly changed by the timer interrupt.
> 
> This doesn't work like I had expected.

This is what 'volatile' is for. Specifying

extern volatile long realtime;

tells the compiler that volatile may change at any time, and therefore
has to be reloaded from memory every time it is accessed.

Hope this helps,
Martin