写一份实现以下功能的FPGA代码

以下是一份基于Verilog的FPGA代码示例，用于实现篮球计分器的功能：

module BasketballScore(
  input wire clk,        // 输入时钟信号
  input wire sw1,        // 开始/结束比赛开关
  input wire btn_star1,  // 黄队加1分按钮
  input wire btn_star2,  // 黄队加2分按钮
  input wire btn_star3,  // 黄队加3分按钮
  input wire btn_num1,   // 红队加1分按钮
  input wire btn_num2,   // 红队加2分按钮
  input wire btn_num3,   // 红队加3分按钮
  output wire led_yellow,   // 黄色LED灯
  output wire led_red,      // 红色LED灯
  output wire [7:0] seg_out  // 七段数码管输出
);

reg [7:0] score_yellow;  // 黄队分数
reg [7:0] score_red;     // 红队分数
reg [7:0] total_score;   // 总分

reg [31:0] counter;      // 计数器

reg game_on;             // 比赛进行中的标志

// 七段数码管显示的分数编码
wire [6:0] yellow_seg = {7'b0000001, 7'b1001111, 7'b0010010, 7'b0000110,
                        7'b1001100, 7'b0100100, 7'b0100000, 7'b0001111};
wire [6:0] red_seg = {7'b0000001, 7'b1001111, 7'b0000010, 7'b0000110,
                      7'b1001100, 7'b0100100, 7'b0010000, 7'b0001111};

// 比赛进行中的逻辑
always @(posedge clk) begin
  if (sw1) begin
    if (!game_on) begin
      // 开始比赛时，分数清零
      score_yellow <= 8'b00000000;
      score_red <= 8'b00000000;
      total_score <= score_yellow + score_red;
      counter <= 32'd0;
      game_on <= 1'b1;
    end else begin
      // 结束比赛，计算总分并进行判断
      total_score <= score_yellow + score_red;

      if (total_score > 8'd99) begin
        // 总分大于99时，关闭比赛进行中的标志，开始闪烁LED灯
        game_on <= 1'b0;
        counter <= 32'd0;
      end else begin
        // 总分未满99时，继续计数
        counter <= counter + 32'd1;
      end
    end
  end else begin
    // 比赛未开始或已结束
    game_on <= 1'b0;
    counter <= 32'd0;
  end
end

// 黄队加分逻辑
always @(posedge clk) begin
  if (game_on) begin
    if (btn_star1)
      score_yellow <= score_yellow + 8'd1;
    else if (btn_star2)
      score_yellow <= score_yellow + 8'd2;
    else if (btn_star3)
      score_yellow <= score_yellow + 8'd3;
  end
end

// 红队加分逻辑
always @(posedge clk) begin
  if (game_on) begin
    if (btn_num1)
      score_red <= score_red + 8'd1;
    else if (btn_num2)
      score_red <= score_red + 8'd2;
    else if (btn_num3)
      score_red <= score_red + 8'd3;
  end
end

// LED灯闪烁逻辑
always @(posedge clk) begin
  if (!game_on && total_score > 8'd99) begin
    // 计数器计满时，LED灯闪烁
    counter <= counter + 32'd1;
    if (counter[31:30] == 2'b00)
      led_yellow <= ~led_yellow;
    else if (counter[31:30] == 2'b01)
      led_red <= ~led_red;
    else
      led_yellow <= 1'b0;
      led_red <= 1'b0;
  end else begin
    // 比赛未结束时，LED灯熄灭
    led_yellow <= 1'b0;
    led_red <= 1'b0;
  end
end

// 数码管显示逻辑
always @(posedge clk) begin
  if (game_on)
    seg_out <= yellow_seg[score_yellow[3:0]];
  else if (!game_on && total_score > 8'd99)
    seg_out <= red_seg[score_red[3:0]];
  else
    seg_out <= 8'b00000000;
end

endmodule

请注意，这只是一个简单的代码示例，具体实现可能需要根据您的FPGA平台和开发工具进行适配和调整。