add8s_6T8.c

/***
* 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, L. Sekanina, Z. Vasicek "Libraries of Approximate Circuits: Automated Design and Application in CNN Accelerators" IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Vol 10, No 4, 2020 
* This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and mre parameters
***/
// MAE% = 18.28 %
// MAE = 23 
// WCE% = 54.69 %
// WCE = 70 
// WCRE% = 3300.00 %
// EP% = 98.52 %
// MRE% = 67.56 %
// MSE = 839 
// PDK45_PWR = 0.0063 mW
// PDK45_AREA = 26.8 um2
// PDK45_DELAY = 0.17 ns
#include <stdint.h>
#include <stdlib.h>

uint64_t add8s_6T8(const uint64_t B,const uint64_t A)
{
   uint64_t dout_27, dout_28, dout_29, dout_30, dout_34, dout_44, dout_49, dout_62, dout_63, dout_64;
   uint64_t O;

   dout_27=((A >> 5)&1)|((B >> 5)&1);
   dout_28=((A >> 6)&1)&((B >> 6)&1);
   dout_29=((A >> 6)&1)^((B >> 6)&1);
   dout_30=((A >> 7)&1)^((B >> 7)&1);
   dout_34=((B >> 7)&1)&((A >> 7)&1);
   dout_44=dout_27&dout_34;
   dout_49=dout_28|dout_34;
   dout_62=dout_44^dout_27;
   dout_63=dout_29|dout_34;
   dout_64=dout_30^dout_49;

   O = 0;
   O |= (0&1) << 0;
   O |= (dout_63&1) << 1;
   O |= (dout_64&1) << 2;
   O |= (dout_62&1) << 3;
   O |= (dout_62&1) << 4;
   O |= (dout_62&1) << 5;
   O |= (dout_63&1) << 6;
   O |= (dout_64&1) << 7;
   return O;
}