mux2.v

本代码是在modelsim下运行的模拟8×8位的CPU

module mux2(mux2_out,m0_in,m1_in,sel_in);
   parameter width=8;
   
   output [width-1:0] mux2_out; //??????
   input  [width-1:0] m0_in;    //??????0
   input  [width-1:0] m1_in;    //??????1
   input  sel_in;               //????

   reg    [width-1:0]  mux2_out;//??????????????????
     
   always @(m0_in or m1_in or sel_in)
      begin
	case(sel_in)
	'b0:mux2_out = m0_in;
	'b1:mux2_out = m1_in;
	endcase
      end
endmodule