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principle you should be able to import the vhdl code directly into the quartus 
tool, and compile the top level It will by itself see the sub files, if they are 
in same dir. I tried this with cfft, and aprt from some library ref to synplify 
it worked almost( except it did not recognize the ram to be a ram 
but implemeted it as registers=huge useless chip was 
result). There are a few details to setup in quartus, such as the name of 
the project, and the toplevel file. There is a wizard to create new project 
with. Use the tutorial and the help files to guide you through the process, but 
its all prety simple. I do recommend though that you make a small "Hello world" 
design to rule out problems with you quartus setup. Then, when this is running, 
jump onto the real core. Give it a try good 
luck,  but 
dont forget the help files and tutorials. They are improving the 
luck. henning 
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