Critical Issue
Description
If your VHDL code includes a case statement with
more than 1000 separate states, the Quartus II software might apply
incorrect optimizations, leading to functional problems in your
design.
Resolution
If your VHDL code includes a case statement with
more than 1000 separate states, refer to the solution available
at:
http://www.altera.com/support/kdb/solutions/rd08042010_7 61.html