verilog $display
时间: 2023-12-02 19:03:50 浏览: 112
Verilog `$display` is a system function used for displaying values during simulation. It is commonly used for debugging purposes to print out the values of variables or signals. The syntax for `$display` is similar to `printf` in C programming. Here's an example:
```
module MyModule;
reg clk;
reg [7:0] data;
always #10 clk = ~clk;
initial begin
clk = 0;
data = 8'b10101010;
$display("Data: %b", data); // Display the value of 'data' in binary format
$display("Data: %d", data); // Display the value of 'data' in decimal format
$display("Data: %h", data); // Display the value of 'data' in hexadecimal format
$finish; // End the simulation
end
endmodule
```
When this code is simulated, it will print the value of 'data' in binary, decimal, and hexadecimal formats. The output will depend on the simulator being used.
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