crossbar switch VHDL available?

dear

I am looing for open source or publicly available source code (in HDL)
of crossbar switch for learning purpose. Simple implementation, Part of
the code, some hints, some guidance will be nice for me. Could anyone
help me with this?

Not to be rude, but did you try to type in "crossbar switch VHDL" into
google???

This was one of the results:
http://www.xilinx.com/bvdocs/appnotes/xapp380.pdf
You can download the source code from xilinx's website.

Eric

Thankyou for nice pointing.
Yes I will make more effort for public search first :)
Thanks