square root and cubic root for integer and FPGA implementation

This post refers to:
Beitrag "Kubikwurzel bilden"

The attached C-code implements square root and cubic root calculations 
for integers. The code uses mere Add/Shift operations and is thus well 
suited for hardware implementation.

It was assembled and adapted from different sources.
There are more details given in the attached file.

Cheers
Detlef