text: /***
  * This code is a part of EvoApproxLib library (ehw.fit.vutbr.cz/approxlib) distributed under The MIT License.
  * When used, please cite the following article(s): V. Mrazek, R. Hrbacek, Z. Vasicek and L. Sekanina, "EvoApprox8b: Library of approximate adders and multipliers for circuit design and benchmarking of approximation methods". Design, Automation & Test in Europe Conference & Exhibition (DATE), 2017, Lausanne, 2017, pp. 258-261. doi: 10.23919/DATE.2017.7926993 
  * This file contains a circuit from evoapprox8b dataset. Note that a new version of library was already published.
  ***/
  #include <stdint.h>
  #include <stdlib.h>
  
  /// Approximate function add8_047
  ///  Library = EvoApprox8b
  ///  Circuit = add8_047
  ///  Area   (180) = 1240
  ///  Delay  (180) = 0.850
  ///  Power  (180) = 342.90
  ///  Area   (45) = 89
  ///  Delay  (45) = 0.370
  ///  Power  (45) = 27.14
  ///  Nodes = 32
  ///  HD = 188032
  ///  MAE = 6.88672
  ///  MSE = 66.00000
  ///  MRE = 3.59 %
  ///  WCE = 17
  ///  WCRE = 100 %
  ///  EP = 97.9 %
  uint16_t add8_047(uint8_t a, uint8_t b)
  {
    uint16_t c = 0;
    uint8_t n4 = (a >> 2) & 0x1;
    uint8_t n6 = (a >> 3) & 0x1;
    uint8_t n8 = (a >> 4) & 0x1;
    uint8_t n10 = (a >> 5) & 0x1;
    uint8_t n12 = (a >> 6) & 0x1;
    uint8_t n14 = (a >> 7) & 0x1;
    uint8_t n20 = (b >> 2) & 0x1;
    uint8_t n22 = (b >> 3) & 0x1;
    uint8_t n24 = (b >> 4) & 0x1;
    uint8_t n26 = (b >> 5) & 0x1;
    uint8_t n28 = (b >> 6) & 0x1;
    uint8_t n30 = (b >> 7) & 0x1;
    uint8_t n43;
    uint8_t n44;
    uint8_t n46;
    uint8_t n49;
    uint8_t n68;
    uint8_t n70;
    uint8_t n73;
    uint8_t n78;
    uint8_t n79;
    uint8_t n81;
    uint8_t n86;
    uint8_t n87;
    uint8_t n96;
    uint8_t n97;
    uint8_t n129;
    uint8_t n135;
    uint8_t n136;
    uint8_t n143;
    uint8_t n153;
    uint8_t n160;
    uint8_t n162;
    uint8_t n170;
    uint8_t n177;
    uint8_t n181;
    uint8_t n206;
    uint8_t n209;
    uint8_t n226;
    uint8_t n245;
    uint8_t n254;
    uint8_t n273;
    uint8_t n377;
    uint8_t n394;
    uint8_t n404;
    uint8_t n412;
    uint8_t n413;
    uint8_t n422;
  
    n43 = n28 | n12;
    n44 = n28 | n12;
    n46 = n26 & n10;
    n49 = ~(n24 | n8 | n6);
    n68 = n8 & n24;
    n70 = n68;
    n73 = n24 & n8;
    n78 = n10 ^ n26;
    n79 = n10 & n26;
    n81 = n79;
    n86 = n12 ^ n28;
    n87 = n12 & n28;
    n96 = n14 ^ n30;
    n97 = n14 & n30;
    n129 = n44;
    n135 = n26 | n10;
    n136 = n135;
    n143 = n87;
    n153 = n70;
    n160 = n96;
    n162 = n43 & n46;
    n170 = n129;
    n177 = ~n49;
    n181 = n143 | n162;
    n206 = n136;
    n209 = n181;
    n226 = n206 & n153;
    n245 = n81 | n226;
    n254 = n170 & n226;
    n273 = n209 | n254;
    n377 = n160;
    n394 = n78 ^ n73;
    n404 = n86 ^ n245;
    n412 = n377 ^ n273;
    n413 = n377 & n273;
    n422 = n97 | n413;
  
    c |= (n4 & 0x1) << 0;
    c |= (n20 & 0x1) << 1;
    c |= (n4 & 0x1) << 2;
    c |= (n22 & 0x1) << 3;
    c |= (n177 & 0x1) << 4;
    c |= (n394 & 0x1) << 5;
    c |= (n404 & 0x1) << 6;
    c |= (n412 & 0x1) << 7;
    c |= (n422 & 0x1) << 8;
  
    return c;
  }
  
  