wslでelixir その119

概要

wsl(wsl2じゃない)で、elixirやってみた。
練習問題、やってみた。

練習問題

Livebookで高位合成してverilogを生成せよ。

方針

• 組み合わせ回路の高位合成
• 論理式は使わない。
• コンパイラ方式
• kino.js使う。

写真

投入したソース

lut 4
lin 3
lout 1
code 0 0
code 1 0
code 2 0
code 3 1
code 4 0
code 5 0
code 6 1
code 7 0

生成したverilog

module lut(input wire [2:0] data, output reg [0:0] code);
	always @(data)
	begin
		case(data)
		4'h0:
			code = 8'h0;
		4'h1:
			code = 8'h0;
		4'h2:
			code = 8'h0;
		4'h3:
			code = 8'h1;
		4'h4:
			code = 8'h0;
		4'h5:
			code = 8'h0;
		4'h6:
			code = 8'h1;
		4'h7:
			code = 8'h0;
		endcase
	end
endmodule

module testbench;
	reg [2:0] data;
	wire [0:0] code;
	lut u(.data(data), .code(code));
	initial
	begin
		$display("data code");
		$monitor("%h  %b", data, code);
		data = 4'h0; #10;
		data = 4'h1; #10;
		data = 4'h2; #10;
		data = 4'h3; #10;
		data = 4'h4; #10;
		data = 4'h5; #10;
		data = 4'h6; #10;
		data = 4'h7; #10;
		$finish;
	end
endmodule

サンプルコード

defmodule KinoOhi.Asm2 do
  use Kino.JS

  def new(html) do
    Kino.JS.new(__MODULE__, html)
  end

  asset "main.js" do
    """
    function run(str) {
    var in0 = "";
    var in1 = "";
    var out0 = "";
    var out1 = "";
    var m = "";
    var u = "";
    //var str = src.value;
    var codes = str.split("\\n");  
    var len = codes.length;
    var i, 
    j;
    for (i = 0; i < len; i++)
    {
    var code = codes[i].split(" ");
    switch (code[0])
    {
    case "":
    break;
    case "lut":
    break;
    case "lin":
      var a = parseInt(code[1]) - 1;
      in0 = "input wire [" + a + ":0] data,";
      in1 = "\\treg [" + a + ":0] data;\\n";
    break;
    case "lout":
      var a = parseInt(code[1]) - 1;
      out0 = " output reg [" + a + ":0] code";
      out1 = "\\twire [" + a + ":0] code;\\n";
    break;
    case "code":  
      var a = code[1];
      var b = code[2];
      u += "\\t\\t4'h" + a + ":\\n\\t\\t\\tcode = 8'h" + b + ";\\n";
      m += "\\t\\tdata = 4'h" + a + "; #10;\\n";
    break;
    default:
      alert(code[0]);
    break;
    }
    }
    var out = document.getElementById("out");
    out.value = "module lut(" + in0 + out0 + ");\\n" +
    "\\talways @(data)\\n" +
    "\\tbegin\\n" +
    "\\t\\tcase(data)\\n" +
    u +
    "\\t\\tendcase\\n" +
    "\\tend\\n" +
    "endmodule\\n\\n" +
    "module testbench;\\n" +
    in1 + 
    out1 +
    "\\tlut u(.data(data), .code(code));\\n" +
    "\\tinitial\\n" +
    "\\tbegin\\n" +
    '\\t\\t$display("data code");\\n' +
    '\\t\\t$monitor("%h  %b", data, code);\\n' +
    m +
    "\\t\\t$finish;\\n" +
    "\\tend\\n" +
    "endmodule";
    }
    export function init(ctx, html) {
      const out0 = document.createElement("textarea");
      out0.id = "out";
      out0.style.width = "90%";
      out0.style.height = "550px";
      ctx.root.appendChild(out0);
      run(html);
    }
    """
  end
end

KinoOhi.Asm2.new("""
lut 4
lin 3
lout 1
code 0 0
code 1 0
code 2 0
code 3 1
code 4 0
code 5 0
code 6 1
code 7 0
""")

以上。