Write a SystemVerilog code for a 4×4 matrix multiplier.

Sure, here’s an example implementation of a 4×4 matrix multiplier using SystemVerilog:

module matrix_multiplier(
    input logic [3:0][3:0] A,
    input logic [3:0][3:0] B,
    output logic [3:0][3:0] C
);

    genvar i, j, k;
    generate
        for (i = 0; i < 4; i++) begin : row_generator
            for (j = 0; j < 4; j++) begin : column_generator
                assign C[i][j] = 0;
                for (k = 0; k < 4; k++) begin : multiplier
                    assign C[i][j] += A[i][k] * B[k][j];
                end
            end
        end
    endgenerate

endmodule

In this example, the "matrix_multiplier" module has two input matrices, "A" and "B", and one output matrix, "C". The "genvar" keyword is used to define three generate variables, "i", "j", and "k", which are used in the generate block to generate the outputs of the matrix multiplication.

The generate block contains three nested loops, which iterate over the rows and columns of the output matrix, and the elements of the input matrices. Inside the innermost loop, the output matrix element is computed as the sum of the products of the corresponding elements from the input matrices.

Overall, this implementation of a 4x4 matrix multiplier is a simple and concise example of how to use SystemVerilog to implement a mathematically complex piece of hardware. The use of generate statements and nested loops allows for the efficient and scalable implementation of the matrix multiplication operation.