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add8_262.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, 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_262
/// Library = EvoApprox8b
/// Circuit = add8_262
/// Area (180) = 1720
/// Delay (180) = 0.970
/// Power (180) = 563.20
/// Area (45) = 115
/// Delay (45) = 0.420
/// Power (45) = 45.62
/// Nodes = 37
/// HD = 65280
/// MAE = 0.71875
/// MSE = 2.25000
/// MRE = 0.38 %
/// WCE = 5
/// WCRE = 50 %
/// EP = 34.4 %
uint16_t add8_262(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 n40;
uint8_t n41;
uint8_t n50;
uint8_t n51;
uint8_t n58;
uint8_t n59;
uint8_t n68;
uint8_t n69;
uint8_t n78;
uint8_t n79;
uint8_t n86;
uint8_t n87;
uint8_t n88;
uint8_t n96;
uint8_t n97;
uint8_t n107;
uint8_t n110;
uint8_t n124;
uint8_t n134;
uint8_t n143;
uint8_t n152;
uint8_t n155;
uint8_t n163;
uint8_t n170;
uint8_t n180;
uint8_t n198;
uint8_t n199;
uint8_t n208;
uint8_t n209;
uint8_t n226;
uint8_t n227;
uint8_t n236;
uint8_t n245;
uint8_t n254;
uint8_t n292;
uint8_t n320;
uint8_t n328;
uint8_t n338;
uint8_t n349;
uint8_t n366;
uint8_t n376;
uint8_t n384;
uint8_t n394;
uint8_t n404;
uint8_t n412;
uint8_t n413;
uint8_t n422;
n32 = n0 | n16;
n40 = n2 ^ n18;
n41 = n2 & n18;
n50 = n4 ^ n20;
n51 = n4 & n20;
n58 = n6 ^ n22;
n59 = n6 & n22;
n68 = n8 ^ n24;
n69 = n8 & n24;
n78 = n10 ^ n26;
n79 = n10 & n26;
n86 = n12 ^ n28;
n87 = n12 & n28;
n88 = n24 | n8;
n96 = n14 ^ n30;
n97 = n14 & n30;
n107 = n20 & n41;
n110 = n10 & n26;
n124 = n51 | n107;
n134 = n88 & n59;
n143 = n68 & n58;
n152 = n69 | n134;
n155 = n41;
n163 = n86 & n79;
n170 = n86 & n78;
n180 = n87 | n163;
n198 = n124;
n199 = n124;
n208 = n143 & n124;
n209 = n143 & n124;
n226 = n152 | n208;
n227 = n152 | n208;
n236 = n170 & n152;
n245 = n170 & n209;
n254 = n180 | n236;
n292 = n254 | n245;
n320 = n58 & n199;
n328 = n59 | n320;
n338 = n78 & n227;
n349 = n110 | n338;
n366 = n50 | n155;
n376 = n58 ^ n198;
n384 = n68 ^ n328;
n394 = n78 ^ n226;
n404 = n86 ^ n349;
n412 = n96 ^ n292;
n413 = n96 & n292;
n422 = n97 | n413;
c |= (n32 & 0x1) << 0;
c |= (n40 & 0x1) << 1;
c |= (n366 & 0x1) << 2;
c |= (n376 & 0x1) << 3;
c |= (n384 & 0x1) << 4;
c |= (n394 & 0x1) << 5;
c |= (n404 & 0x1) << 6;
c |= (n412 & 0x1) << 7;
c |= (n422 & 0x1) << 8;
return c;
}