`timescale 1ns/1ps

module cam_top #(
    parameter int NUM_ROWS  = 512,
    parameter int HASH_BITS = 512,
    parameter int LANES     = 16,

    parameter int ROW_BITS   = $clog2(NUM_ROWS),
    parameter int SCORE_BITS = $clog2(HASH_BITS + 1)
) (
    input  logic clk,
    input  logic rst_n,

    input  logic                  wr_en,
    input  logic [ROW_BITS-1:0]   wr_row,
    input  logic [HASH_BITS-1:0]  wr_hash,

    input  logic                  query_valid,
    output logic                  query_ready,
    input  logic [HASH_BITS-1:0]  query_hash,

    output logic                  result_valid,
    input  logic                  result_ready,
    output logic [ROW_BITS-1:0]   top1_index,
    output logic [SCORE_BITS-1:0] top1_score,

`ifdef SIM_NOISE
    input  logic [LANES*HASH_BITS-1:0] noise_mask_lanes_flat,
`endif

`ifdef SIM_DEBUG
    output logic [NUM_ROWS*SCORE_BITS-1:0] score_debug_flat,
`endif

    output logic busy
);
    cam_core #(
        .NUM_ROWS(NUM_ROWS),
        .HASH_BITS(HASH_BITS),
        .LANES(LANES),
        .ROW_BITS(ROW_BITS),
        .SCORE_BITS(SCORE_BITS)
    ) u_core (
        .clk(clk),
        .rst_n(rst_n),
        .wr_row(wr_row),
        .wr_hash(wr_hash),
        .wr_en(wr_en),
        .query_valid(query_valid),
        .query_ready(query_ready),
        .query_hash(query_hash),
        .result_valid(result_valid),
        .result_ready(result_ready),
        .top1_index(top1_index),
        .top1_score(top1_score),
`ifdef SIM_NOISE
        .noise_mask_lanes_flat(noise_mask_lanes_flat),
`endif
`ifdef SIM_DEBUG
        .score_debug_flat(score_debug_flat),
`endif
        .busy(busy)
    );
endmodule