Mini-Nav/hw/rtl/argmax_update.sv

`timescale 1ns/1ps

module argmax_update #(
    parameter int ROW_BITS = 9,
    parameter int SCORE_BITS = 10
) (
    input  logic [ROW_BITS-1:0]   best_index_i,
    input  logic [SCORE_BITS-1:0] best_score_i,

    input  logic [ROW_BITS-1:0]   cand_index_i,
    input  logic [SCORE_BITS-1:0] cand_score_i,

    output logic [ROW_BITS-1:0]   best_index_o,
    output logic [SCORE_BITS-1:0] best_score_o
);
    always_comb begin
        best_index_o = best_index_i;
        best_score_o = best_score_i;

        if ((cand_score_i > best_score_i) ||
            ((cand_score_i == best_score_i) && (cand_index_i < best_index_i))) begin
            best_index_o = cand_index_i;
            best_score_o = cand_score_i;
        end
    end
endmodule