Zet processor is an open implementation of the so widely used IA-32 architecture (generally called x86). It is implemented in Verilog and can be synthesized for FPGAs. One of the supported development boards is the Altera DE1 Board. DE1 only has one PS/2 port so mouse is not supported on that board. But the board has many IO-ports and the mouse PS/2 pins are mapped to some of the IO pins.