Another way (con’t)

function [1:0] next_state; input in;

input [1:0] state;

case (state)

zero: if (in) next_state = one1; else next_state = zero; one1: if (in) next_state = two1s; else next_state = zero;

two1s: if (in) next_state = two1s; else next_state = zero;

default:

next_state = zero;

endcase endfunction

endmodule