assembly instruction


I am using TM4C1290NCPDT customized board & IAR compiler.

I am  looking for the API's absolute - abs(), rotate left - LSL_C(), _prior(), mul32(),div32()

I could find some API's Abs(), LSL_C() ,FPMul() .

To use these API's required any specific include file or #pragma.I am getting errors if I use it directly.

Floating point FPMul() will support integer mul32 as well?.

Kindly help.