For a university mid-term project I have to design a configurable processor, to write the code in VHDL and then synthesize it on a Spartan 3E FPGA board from Digilent. I'm a beginner so could you point me to some information about configurable processors, to some ideas related to the concept?
You can check out my answer for a related question. We did nearly the same, building a CPU in VHDL for a FPGA board.