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mul12u_35U.c
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mul12u_35U.c
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/***
* 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, Z. Vasicek, L. Sekanina, H. Jiang and J. Han, "Scalable Construction of Approximate Multipliers With Formally Guaranteed Worst Case Error" in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 26, no. 11, pp. 2572-2576, Nov. 2018. doi: 10.1109/TVLSI.2018.2856362
* This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and mre parameters
***/
// MAE% = 1.53 %
// MAE = 256000
// WCE% = 6.10 %
// WCE = 1024001
// WCRE% = 100.00 %
// EP% = 99.95 %
// MRE% = 15.79 %
// MSE = 92062.713e6
// PDK45_PWR = 0.106 mW
// PDK45_AREA = 267.0 um2
// PDK45_DELAY = 0.81 ns
#include <stdint.h>
#include <stdlib.h>
uint32_t mul12u_35U(uint16_t A, uint16_t B)
{
uint32_t P, P_;
uint16_t tmp, C_10_10,C_10_7,C_10_8,C_10_9,C_11_10,C_11_7,C_11_8,C_11_9,C_12_10,C_12_7,C_12_8,C_12_9,C_8_10,C_8_7,C_8_8,C_8_9,C_9_10,C_9_7,C_9_8,C_9_9,S_10_10,S_10_11,S_10_4,S_10_5,S_10_6,S_10_7,S_10_8,S_10_9,S_11_10,S_11_11,S_11_3,S_11_4,S_11_5,S_11_6,S_11_7,S_11_8,S_11_9,S_12_10,S_12_11,S_12_2,S_12_3,S_12_4,S_12_5,S_12_6,S_12_7,S_12_8,S_12_9,S_7_10,S_7_11,S_7_7,S_7_8,S_7_9,S_8_10,S_8_11,S_8_6,S_8_7,S_8_8,S_8_9,S_9_10,S_9_11,S_9_5,S_9_6,S_9_7,S_9_8,S_9_9;
S_7_7 = (((A>>7)&1) & ((B>>7)&1));
S_7_8 = (((A>>7)&1) & ((B>>8)&1));
S_7_9 = (((A>>7)&1) & ((B>>9)&1));
S_7_10 = (((A>>7)&1) & ((B>>10)&1));
S_7_11 = (((A>>7)&1) & ((B>>11)&1));
S_8_6 = S_7_7;
S_8_7 = S_7_8^(((A>>8)&1) & ((B>>7)&1));
C_8_7 = S_7_8&(((A>>8)&1) & ((B>>7)&1));
S_8_8 = S_7_9^(((A>>8)&1) & ((B>>8)&1));
C_8_8 = S_7_9&(((A>>8)&1) & ((B>>8)&1));
S_8_9 = S_7_10^(((A>>8)&1) & ((B>>9)&1));
C_8_9 = S_7_10&(((A>>8)&1) & ((B>>9)&1));
S_8_10 = S_7_11^(((A>>8)&1) & ((B>>10)&1));
C_8_10 = S_7_11&(((A>>8)&1) & ((B>>10)&1));
S_8_11 = (((A>>8)&1) & ((B>>11)&1));
S_9_5 = S_8_6;
S_9_6 = S_8_7;
tmp = S_8_8^C_8_7;
S_9_7 = tmp^(((A>>9)&1) & ((B>>7)&1));
C_9_7 = (tmp&(((A>>9)&1) & ((B>>7)&1)))|(S_8_8&C_8_7);
tmp = S_8_9^C_8_8;
S_9_8 = tmp^(((A>>9)&1) & ((B>>8)&1));
C_9_8 = (tmp&(((A>>9)&1) & ((B>>8)&1)))|(S_8_9&C_8_8);
tmp = S_8_10^C_8_9;
S_9_9 = tmp^(((A>>9)&1) & ((B>>9)&1));
C_9_9 = (tmp&(((A>>9)&1) & ((B>>9)&1)))|(S_8_10&C_8_9);
tmp = S_8_11^C_8_10;
S_9_10 = tmp^(((A>>9)&1) & ((B>>10)&1));
C_9_10 = (tmp&(((A>>9)&1) & ((B>>10)&1)))|(S_8_11&C_8_10);
S_9_11 = (((A>>9)&1) & ((B>>11)&1));
S_10_4 = S_9_5;
S_10_5 = S_9_6;
S_10_6 = S_9_7;
tmp = S_9_8^C_9_7;
S_10_7 = tmp^(((A>>10)&1) & ((B>>7)&1));
C_10_7 = (tmp&(((A>>10)&1) & ((B>>7)&1)))|(S_9_8&C_9_7);
tmp = S_9_9^C_9_8;
S_10_8 = tmp^(((A>>10)&1) & ((B>>8)&1));
C_10_8 = (tmp&(((A>>10)&1) & ((B>>8)&1)))|(S_9_9&C_9_8);
tmp = S_9_10^C_9_9;
S_10_9 = tmp^(((A>>10)&1) & ((B>>9)&1));
C_10_9 = (tmp&(((A>>10)&1) & ((B>>9)&1)))|(S_9_10&C_9_9);
tmp = S_9_11^C_9_10;
S_10_10 = tmp^(((A>>10)&1) & ((B>>10)&1));
C_10_10 = (tmp&(((A>>10)&1) & ((B>>10)&1)))|(S_9_11&C_9_10);
S_10_11 = (((A>>10)&1) & ((B>>11)&1));
S_11_3 = S_10_4;
S_11_4 = S_10_5;
S_11_5 = S_10_6;
S_11_6 = S_10_7;
tmp = S_10_8^C_10_7;
S_11_7 = tmp^(((A>>11)&1) & ((B>>7)&1));
C_11_7 = (tmp&(((A>>11)&1) & ((B>>7)&1)))|(S_10_8&C_10_7);
tmp = S_10_9^C_10_8;
S_11_8 = tmp^(((A>>11)&1) & ((B>>8)&1));
C_11_8 = (tmp&(((A>>11)&1) & ((B>>8)&1)))|(S_10_9&C_10_8);
tmp = S_10_10^C_10_9;
S_11_9 = tmp^(((A>>11)&1) & ((B>>9)&1));
C_11_9 = (tmp&(((A>>11)&1) & ((B>>9)&1)))|(S_10_10&C_10_9);
tmp = S_10_11^C_10_10;
S_11_10 = tmp^(((A>>11)&1) & ((B>>10)&1));
C_11_10 = (tmp&(((A>>11)&1) & ((B>>10)&1)))|(S_10_11&C_10_10);
S_11_11 = (((A>>11)&1) & ((B>>11)&1));
S_12_2 = S_11_3;
S_12_3 = S_11_4;
S_12_4 = S_11_5;
S_12_5 = S_11_6;
S_12_6 = S_11_7;
S_12_7 = S_11_8^C_11_7;
C_12_7 = S_11_8&C_11_7;
tmp = S_11_9^C_12_7;
S_12_8 = tmp^C_11_8;
C_12_8 = (tmp&C_11_8)|(S_11_9&C_12_7);
tmp = S_11_10^C_12_8;
S_12_9 = tmp^C_11_9;
C_12_9 = (tmp&C_11_9)|(S_11_10&C_12_8);
tmp = S_11_11^C_12_9;
S_12_10 = tmp^C_11_10;
C_12_10 = (tmp&C_11_10)|(S_11_11&C_12_9);
S_12_11 = C_12_10;
P = 0;
P |= (S_12_2 & 1) << 14;
P |= (S_12_3 & 1) << 15;
P |= (S_12_4 & 1) << 16;
P |= (S_12_5 & 1) << 17;
P |= (S_12_6 & 1) << 18;
P |= (S_12_7 & 1) << 19;
P |= (S_12_8 & 1) << 20;
P |= (S_12_9 & 1) << 21;
P |= (S_12_10 & 1) << 22;
P |= (S_12_11 & 1) << 23;
return P;
}