verilog signed

Verilog is a hardware description language used for designing digital systems. When it comes to representing signed numbers in Verilog, there are a few different ways to do so.

One common method is to use the `signed` keyword when a variable. For example:

reg signed [7:0] mySignedVariable;

In this case, `mySignedVariable` is declared as an 8-bit signed variable. The `signed` keyword tells the compiler to interpret the MSB (Most Significant Bit) as the sign bit, allowing both positive and negative values to be stored.

You can perform arithmetic operations on signed variables in Verilog, and the language will handle the sign extension and overflow automatically. However, it's important to ensure that the width of your signed variables is appropriate for the range of values you want to represent.