Sure, here’s an example of a 2-bit comparator implemented using SystemVerilog:
module comparator_2bit( input logic [1:0] a, input logic [1:0] b, output logic eq, output logic gt, output logic lt ); assign eq = (a == b); assign gt = (a > b); assign lt = (a < b); endmodule
In this code, we define a module called `comparator_2bit` with two input ports `a` and `b`, and three output ports `eq`, `gt`, and `lt`. The `a` and `b` inputs are 2-bit binary values to be compared, the `eq` output is a single-bit binary value representing the equality of `a` and `b`, the `gt` output is a single-bit binary value representing whether `a` is greater than `b`, and the `lt` output is a single-bit binary value representing whether `a` is less than `b`.
The `assign` statements use the logical operators `==`, `>`, and `<` to compare the values of `a` and `b` and assign the results to the output ports. For example, if `a` is `2'b10` and `b` is `2'b01`, the `gt` output will be set to 1 (since `10` is greater than `01`) and the `lt` output will be set to 0 (since `10` is not less than `01`). The `eq` output will be set to 0 (since `a` and `b` are not equal). You can instantiate this module in your top-level design hierarchy and connect it to other modules or input/output signals as needed. Note that you can modify the code to implement a comparator with a different number of bits by changing the bit width of the input signals and modifying the comparison logic accordingly.