Verilog仿真是出现# Error loading design如何解决?
以下为源代码
module stimulus;
reg [3:0] A,B;
reg C_IN;
wire [3:0] SUM;
wire C_OUT;
fulladd4 FA1_4(SUM,C_OUT,A,B,C_IN);
initial
begin
$monitor($time,"A=%b,C_IN=%b,----C_OUT=%b,SUM=%b\n",A,B,C_IN,C_OUT,SUM);
end
initial
begin
A=4'd0;B=4'd0;C_IN=1'b0;
#5 A=4'd3;B=4'd4;
#5 A=4'd2;B=4'd5;
#5 A=4'd9;B=4'd9;
#5 A=4'd10;B=4'd 15;
#5 A=4'd10;B=4'd5;C_IN=1'b1;
end
endmodule
module stimulus;
reg [3:0] A,B;
reg C_IN;
wire [3:0] SUM;
wire C_OUT;
fulladd4 FA1_4(SUM,C_OUT,A,B,C_IN);
initial
begin
$monitor($time,"A=%b,C_IN=%b,----C_OUT=%b,SUM=%b\n",A,B,C_IN,C_OUT,SUM);
end
initial
begin
A=4'd0;B=4'd0;C_IN=1'b0;
#5 A=4'd3;B=4'd4;
#5 A=4'd2;B=4'd5;
#5 A=4'd9;B=4'd9;
#5 A=4'd10;B=4'd 15;
#5 A=4'd10;B=4'd5;C_IN=1'b1;
end
endmodule |