File size: 997 Bytes
d8ff16a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | `timescale 1ns/1ps
module tb_full_adder;
reg a;
reg b;
reg cin;
wire sum;
wire cout;
full_adder uut (
.a(a),
.b(b),
.cin(cin),
.sum(sum),
.cout(cout)
);
initial begin
$display("a b cin | sum cout");
$display("-------------------");
a=0; b=0; cin=0; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=0; b=0; cin=1; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=0; b=1; cin=0; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=0; b=1; cin=1; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=1; b=0; cin=0; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=1; b=0; cin=1; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=1; b=1; cin=0; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
a=1; b=1; cin=1; #10;
$display("%b %b %b | %b %b", a, b, cin, sum, cout);
$finish;
end
endmodule
|