module jfq_8(a,b,cin,cout,dout); input [7:0] a,b; input cin; output [7:0] dout; output cout; wire [8:0] DATA; assign DATA=a+b+cin; assign cout=DATA[8]; assign dout=DATA[7:0]; endmodule 写出这段代码的测试文件
时间: 2023-09-15 12:24:32 浏览: 96
下面是针对 jfq_8 模块的测试文件示例:
```
module jfq_8_test;
// Declare inputs and outputs
reg [7:0] a;
reg [7:0] b;
reg cin;
wire [7:0] dout;
wire cout;
// Instantiate the module to be tested
jfq_8 dut(
.a(a),
.b(b),
.cin(cin),
.cout(cout),
.dout(dout)
);
// Assign inputs
initial begin
a = 8'h01;
b = 8'h02;
cin = 1'b0;
end
// Test case 1
initial begin
#10;
$display("Test case 1:");
$display("a = %h, b = %h, cin = %b", a, b, cin);
#5;
$display("dout = %h, cout = %b", dout, cout);
#5;
if (dout === 8'h03 && cout === 1'b0) begin
$display("Test case 1 passed!");
end else begin
$display("Test case 1 failed!");
end
#10;
end
// Test case 2
initial begin
a = 8'hff;
b = 8'h01;
cin = 1'b1;
#10;
$display("Test case 2:");
$display("a = %h, b = %h, cin = %b", a, b, cin);
#5;
$display("dout = %h, cout = %b", dout, cout);
#5;
if (dout === 8'h01 && cout === 1'b1) begin
$display("Test case 2 passed!");
end else begin
$display("Test case 2 failed!");
end
#10;
end
endmodule
```
该测试文件包含两个测试用例,分别测试了 jfq_8 模块对于不同输入的输出是否符合预期。在实际使用中,可以根据需要编写更多的测试用例。
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