module SM
(
	input CLK,
	input E2,
	output FETCH,
	output EXEC1,
	output EXEC2
);

reg [2:0]s = 3'b1; //current state initialised to 001

always @(posedge CLK) //Change on rising edge of clock
	begin
	s[2] <= ~s[2] & s[1] & ~s[0] & E2;
	s[1] <= ~s[2] & ~s[1] & s[0];
	s[0] <= (~s[2] & s[1] & ~s[0] & ~E2) | (s[2] & ~s[1] & ~s[0]);
	end

	assign FETCH = s[0];
	assign EXEC1 = s[1];
	assign EXEC2 = s[2];
endmodule