How add libary in ISE??

[Tomasz Turek]

I am working on QAM modulator and demodulator.
I have problem whith real numbers representation. I found library for fixed - point arithmetic but I do not now how to add this library to my progect.

Please help me

 

[Tomasz Turek]

This is the page where is this package:

http://www.vhdl.org/vhdl-200x/vhdl-200x-ft/packages/files.html