AVR-Chat

OK.  i updated to the latest service pack on AVR Studio, which changed 
the problems I am having with the stack.

   Now, when I  am simulating it, and I trace the PC and the SP, I get 
some strange results.   The stack pointer is tasking on some strnage 
values, such as 0xdd, when the first rcall is executed.   But stranger 
still  is when I hit the RET instruction in the subroutine.  Despite the 
value of 0xdd in the stack pointer register, the code returns to address 
0x0000.    WHY is it doing this?

tom