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_117
  ///  Library = EvoApprox8b
  ///  Circuit = add8_117
  ///  Area   (180) = 896
  ///  Delay  (180) = 1.610
  ///  Power  (180) = 311.20
  ///  Area   (45) = 69
  ///  Delay  (45) = 0.610
  ///  Power  (45) = 29.85
  ///  Nodes = 12
  ///  HD = 49024
  ///  MAE = 0.25000
  ///  MSE = 0.25000
  ///  MRE = 0.14 %
  ///  WCE = 1
  ///  WCRE = 50 %
  ///  EP = 25.0 %
  uint16_t add8_117(uint8_t a, uint8_t b)
  {
    uint16_t c = 0;
    uint8_t n0 = (a >> 0) & 0x1;
    uint8_t n2 = (a >> 1) & 0x1;
    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 n16 = (b >> 0) & 0x1;
    uint8_t n18 = (b >> 1) & 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 n32;
    uint8_t n62;
    uint8_t n83;
    uint8_t n105;
    uint8_t n127;
    uint8_t n131;
    uint8_t n132;
    uint8_t n133;
    uint8_t n182;
    uint8_t n183;
    uint8_t n232;
    uint8_t n233;
    uint8_t n282;
    uint8_t n283;
    uint8_t n332;
    uint8_t n333;
    uint8_t n382;
    uint8_t n383;
  
    n32 = n0 | n16;
    n62 = ~(n18 & n2);
    n83 = n2 ^ n18;
    n105 = n62;
    n127 = ~n105;
    n131 = n127;
    n132 = (n4 ^ n20) ^ n131;
    n133 = (n4 & n20) | (n20 & n131) | (n4 & n131);
    n182 = (n6 ^ n22) ^ n133;
    n183 = (n6 & n22) | (n22 & n133) | (n6 & n133);
    n232 = (n8 ^ n24) ^ n183;
    n233 = (n8 & n24) | (n24 & n183) | (n8 & n183);
    n282 = (n10 ^ n26) ^ n233;
    n283 = (n10 & n26) | (n26 & n233) | (n10 & n233);
    n332 = (n12 ^ n28) ^ n283;
    n333 = (n12 & n28) | (n28 & n283) | (n12 & n283);
    n382 = (n14 ^ n30) ^ n333;
    n383 = (n14 & n30) | (n30 & n333) | (n14 & n333);
  
    c |= (n32 & 0x1) << 0;
    c |= (n83 & 0x1) << 1;
    c |= (n132 & 0x1) << 2;
    c |= (n182 & 0x1) << 3;
    c |= (n232 & 0x1) << 4;
    c |= (n282 & 0x1) << 5;
    c |= (n332 & 0x1) << 6;
    c |= (n382 & 0x1) << 7;
    c |= (n383 & 0x1) << 8;
  
    return c;
  }
  
  