1reg x; 2reg y; 3module cases(); 4 always @(*) begin 5 case (cond) 6 1: ; 7 default ; 8 endcase 9 casex (cond) 10 1, 11 2: ; 12 default: ; 13 endcase 14 casez (cond) 15 1, 16 2: x = 1; 17 default y = 2; 18 endcase 19 end 20endmodule 21