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_151
  ///  Library = EvoApprox8b
  ///  Circuit = add8_151
  ///  Area   (180) = 1264
  ///  Delay  (180) = 0.970
  ///  Power  (180) = 346.80
  ///  Area   (45) = 88
  ///  Delay  (45) = 0.410
  ///  Power  (45) = 27.67
  ///  Nodes = 31
  ///  HD = 188032
  ///  MAE = 5.48438
  ///  MSE = 45.25000
  ///  MRE = 2.91 %
  ///  WCE = 16
  ///  WCRE = 112 %
  ///  EP = 93.9 %
  uint16_t add8_151(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 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 n72;
    uint8_t n73;
    uint8_t n78;
    uint8_t n79;
    uint8_t n81;
    uint8_t n85;
    uint8_t n86;
    uint8_t n87;
    uint8_t n96;
    uint8_t n97;
    uint8_t n135;
    uint8_t n136;
    uint8_t n143;
    uint8_t n152;
    uint8_t n160;
    uint8_t n162;
    uint8_t n164;
    uint8_t n177;
    uint8_t n180;
    uint8_t n207;
    uint8_t n226;
    uint8_t n244;
    uint8_t n255;
    uint8_t n272;
    uint8_t n348;
    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;
    n72 = n24 ^ n8;
    n73 = n24 & n8;
    n78 = n10 ^ n26;
    n79 = n10 & n26;
    n81 = n79;
    n85 = ~(n24 & n8);
    n86 = n12 ^ n28;
    n87 = n12 & n28;
    n96 = n14 ^ n30;
    n97 = n14 & n30;
    n135 = n26 | n10;
    n136 = n135;
    n143 = n87;
    n152 = n70;
    n160 = n96;
    n162 = n43 & n46;
    n164 = n160;
    n177 = ~n49;
    n180 = n143 | n162;
    n207 = n136;
    n226 = n207 & n152;
    n244 = n81 | n226;
    n255 = n44 & n226;
    n272 = n180 | n255;
    n348 = n272;
    n394 = n78 ^ n73;
    n404 = n86 ^ n244;
    n412 = n164 ^ n348;
    n413 = n164 & n348;
    n422 = n97 | n413;
  
    c |= (n85 & 0x1) << 0;
    c |= (n4 & 0x1) << 1;
    c |= (n72 & 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;
  }
  
  