evoapprox8b/adders_8/source_v/add8_227_pdk45.v at master · ehw-fit/evoapprox8b · GitHub

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// Library = EvoApprox8b
// Circuit = add8_227
// Area   (180) = 1000
// Delay  (180) = 0.780
// Power  (180) = 278.30
// Area   (45) = 66
// Delay  (45) = 0.330
// Power  (45) = 22.72
// Nodes = 19
// HD = 190592
// MAE = 4.62500
// MSE = 32.50000
// MRE = 2.49 %
// WCE = 15
// WCRE = 900 %
// EP = 93.8 %

module add8_227(A, B, O);
  input [7:0] A;
  input [7:0] B;
  output [8:0] O;
  wire [2031:0] N;

  assign N[0] = A[0];
  assign N[1] = A[0];
  assign N[2] = A[1];
  assign N[3] = A[1];
  assign N[4] = A[2];
  assign N[5] = A[2];
  assign N[6] = A[3];
  assign N[7] = A[3];
  assign N[8] = A[4];
  assign N[9] = A[4];
  assign N[10] = A[5];
  assign N[11] = A[5];
  assign N[12] = A[6];
  assign N[13] = A[6];
  assign N[14] = A[7];
  assign N[15] = A[7];
  assign N[16] = B[0];
  assign N[17] = B[0];
  assign N[18] = B[1];
  assign N[19] = B[1];
  assign N[20] = B[2];
  assign N[21] = B[2];
  assign N[22] = B[3];
  assign N[23] = B[3];
  assign N[24] = B[4];
  assign N[25] = B[4];
  assign N[26] = B[5];
  assign N[27] = B[5];
  assign N[28] = B[6];
  assign N[29] = B[6];
  assign N[30] = B[7];
  assign N[31] = B[7];

  XNOR2X1 n36(.A(N[30]), .B(N[30]), .Y(N[36]));
  assign N[37] = N[36];
  OR2X1 n44(.A(N[28]), .B(N[12]), .Y(N[44]));
  assign N[45] = N[44];
  BUFX2 n64(.A(N[45]), .Y(N[64]));
  assign N[65] = N[64];
  HAX1 n68(.A(N[8]), .B(N[24]), .YS(N[68]), .YC(N[69]));
  BUFX2 n70(.A(N[69]), .Y(N[70]));
  assign N[71] = N[70];
  HAX1 n78(.A(N[10]), .B(N[26]), .YS(N[78]), .YC(N[79]));
  HAX1 n86(.A(N[12]), .B(N[28]), .YS(N[86]), .YC(N[87]));
  HAX1 n96(.A(N[14]), .B(N[30]), .YS(N[96]), .YC(N[97]));
  HAX1 n134(.A(N[26]), .B(N[10]), .YS(N[134]), .YC(N[135]));
  AND2X1 n162(.A(N[65]), .B(N[135]), .Y(N[162]));
  OR2X1 n180(.A(N[87]), .B(N[162]), .Y(N[180]));
  assign N[181] = N[180];
  AND2X1 n226(.A(N[134]), .B(N[70]), .Y(N[226]));
  assign N[227] = N[226];
  OR2X1 n244(.A(N[79]), .B(N[227]), .Y(N[244]));
  assign N[245] = N[244];
  AND2X1 n254(.A(N[64]), .B(N[226]), .Y(N[254]));
  assign N[255] = N[254];
  OR2X1 n272(.A(N[181]), .B(N[255]), .Y(N[272]));
  HAX1 n394(.A(N[78]), .B(N[71]), .YS(N[394]), .YC(N[395]));
  HAX1 n404(.A(N[86]), .B(N[245]), .YS(N[404]), .YC(N[405]));
  HAX1 n412(.A(N[96]), .B(N[272]), .YS(N[412]), .YC(N[413]));
  OR2X1 n422(.A(N[97]), .B(N[413]), .Y(N[422]));

  assign O[0] = N[37];
  assign O[1] = N[22];
  assign O[2] = N[6];
  assign O[3] = N[37];
  assign O[4] = N[68];
  assign O[5] = N[394];
  assign O[6] = N[404];
  assign O[7] = N[412];
  assign O[8] = N[422];

endmodule