Try this: big_value = 1UL<<16; // 1 - unsinged long big_value = (ungigned long)1<<16;

Hello Mark you probably have to type-cast the "1" into a long before the shift operationg, otherwise the compiler treats it as a short integer, shifting its 1 bit into nothingness. big_value = (long)(1) << 16; Best regards Robert On 04.10.2005, at 19:10, mark@mark... wrote: > > 56805 DSP and I am trying to shift 16 places to the left into an > unsigned > long (32-bit size). > > unsigned long big_value = 0; > > big_value = 1 << 16; > > big_value is still zero. > > What am I missing? >

56805 DSP and I am trying to shift 16 places to the left into an unsigned long (32-bit size). unsigned long big_value = 0; big_value = 1 << 16; big_value is still zero. What am I missing?