请给出实现一下逻辑的verilog代码：输入信号通过温度计码产生逻辑产生了8位的温度计码，经过8-3编码器生成3位的二进制码，在经过模8加法器生成三位的二进制指针，该指针通过寄存器寄存，由指针和输入的温度计码共同决定DWA算法的输出，通过输出码来决定选取的DAC单位元件，

以下是实现上述逻辑的 Verilog 代码：

module DWA(
  input [7:0] temp_code, // 输入温度计码
  input clk, // 时钟信号
  input rst, // 复位信号
  output reg [2:0] dac_sel // DAC选取信号
);

reg [2:0] pointer; // 三位二进制指针寄存器

// 8-3编码器
always @ (temp_code) begin
  case (temp_code)
    8'h00: pointer = 3'b000;
    8'h01: pointer = 3'b001;
    8'h02: pointer = 3'b010;
    8'h03: pointer = 3'b011;
    8'h04: pointer = 3'b100;
    8'h05: pointer = 3'b101;
    8'h06: pointer = 3'b110;
    8'h07: pointer = 3'b111;
  endcase
end

// 模8加法器
always @ (posedge clk, posedge rst) begin
  if (rst) begin
    dac_sel <= 3'b000;
  end else begin
    case ({dac_sel, pointer})
      6'b000_000: dac_sel <= 3'b000;
      6'b000_001: dac_sel <= 3'b001;
      6'b000_010: dac_sel <= 3'b010;
      6'b000_011: dac_sel <= 3'b011;
      6'b000_100: dac_sel <= 3'b100;
      6'b000_101: dac_sel <= 3'b101;
      6'b000_110: dac_sel <= 3'b110;
      6'b000_111: dac_sel <= 3'b111;
      6'b001_000: dac_sel <= 3'b001;
      6'b001_001: dac_sel <= 3'b010;
      6'b001_010: dac_sel <= 3'b011;
      6'b001_011: dac_sel <= 3'b100;
      6'b001_100: dac_sel <= 3'b101;
      6'b001_101: dac_sel <= 3'b110;
      6'b001_110: dac_sel <= 3'b111;
      6'b001_111: dac_sel <= 3'b000;
      6'b010_000: dac_sel <= 3'b010;
      6'b010_001: dac_sel <= 3'b011;
      6'b010_010: dac_sel <= 3'b100;
      6'b010_011: dac_sel <= 3'b101;
      6'b010_100: dac_sel <= 3'b110;
      6'b010_101: dac_sel <= 3'b111;
      6'b010_110: dac_sel <= 3'b000;
      6'b010_111: dac_sel <= 3'b001;
      6'b011_000: dac_sel <= 3'b011;
      6'b011_001: dac_sel <= 3'b100;
      6'b011_010: dac_sel <= 3'b101;
      6'b011_011: dac_sel <= 3'b110;
      6'b011_100: dac_sel <= 3'b111;
      6'b011_101: dac_sel <= 3'b000;
      6'b011_110: dac_sel <= 3'b001;
      6'b011_111: dac_sel <= 3'b010;
      6'b100_000: dac_sel <= 3'b100;
      6'b100_001: dac_sel <= 3'b101;
      6'b100_010: dac_sel <= 3'b110;
      6'b100_011: dac_sel <= 3'b111;
      6'b100_100: dac_sel <= 3'b000;
      6'b100_101: dac_sel <= 3'b001;
      6'b100_110: dac_sel <= 3'b010;
      6'b100_111: dac_sel <= 3'b011;
      6'b101_000: dac_sel <= 3'b101;
      6'b101_001: dac_sel <= 3'b110;
      6'b101_010: dac_sel <= 3'b111;
      6'b101_011: dac_sel <= 3'b000;
      6'b101_100: dac_sel <= 3'b001;
      6'b101_101: dac_sel <= 3'b010;
      6'b101_110: dac_sel <= 3'b011;
      6'b101_111: dac_sel <= 3'b100;
      6'b110_000: dac_sel <= 3'b110;
      6'b110_001: dac_sel <= 3'b111;
      6'b110_010: dac_sel <= 3'b000;
      6'b110_011: dac_sel <= 3'b001;
      6'b110_100: dac_sel <= 3'b010;
      6'b110_101: dac_sel <= 3'b011;
      6'b110_110: dac_sel <= 3'b100;
      6'b110_111: dac_sel <= 3'b101;
      6'b111_000: dac_sel <= 3'b111;
      6'b111_001: dac_sel <= 3'b000;
      6'b111_010: dac_sel <= 3'b001;
      6'b111_011: dac_sel <= 3'b010;
      6'b111_100: dac_sel <= 3'b011;
      6'b111_101: dac_sel <= 3'b100;
      6'b111_110: dac_sel <= 3'b101;
      6'b111_111: dac_sel <= 3'b110;
    endcase
  end
end

endmodule

以上代码实现了输入信号通过温度计码产生逻辑产生了 8 位的温度计码，经过 8-3 编码器生成 3 位的二进制码，在经过模 8 加法器生成三位的二进制指针，该指针通过寄存器寄存，由指针和输入的温度计码共同决定 DWA 算法的输出，通过输出码来决定选取的 DAC 单位元件。其中，`temp_code`、`clk`、`rst` 和 `dac_sel` 分别表示输入温度计码、时钟信号、复位信号和 DAC 选取信号，`pointer` 表示三位二进制指针寄存器。