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Kogge Stone adder

Kogge-Stone is very fast and the area is not too bad, but the wiring is not regular.

Synthesises well. Hard to understand!

For FPGA: Just use RTL '+' and FPGA tools instantiate special paths. Ex (long): Write a Kogge-Stone generator.

48: (C) 2008-11, DJ Greaves, University of Cambridge, Computer Laboratory.