EvoApprox8B

% 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.

function [ c ] = mul8_260( a, b )
% Approximate function mul8_260
%  Library = EvoApprox8b
%  Circuit = mul8_260
%  Area   (180) = 6751
%  Delay  (180) = 2.460
%  Power  (180) = 2484.00
%  Area   (45) = 505
%  Delay  (45) = 0.910
%  Power  (45) = 212.90
%  Nodes = 132
%  HD = 340318
%  MAE = 339.03622
%  MSE = 216818.19653
%  MRE = 7.02 %
%  WCE = 2275
%  WCRE = 200 %
%  EP = 98.5 %
  a = uint16(a);
  b = uint16(b);
  c = 0;
  n0 = bitand(bitshift(a, -0), 1, 'uint16');
  n2 = bitand(bitshift(a, -1), 1, 'uint16');
  n4 = bitand(bitshift(a, -2), 1, 'uint16');
  n6 = bitand(bitshift(a, -3), 1, 'uint16');
  n8 = bitand(bitshift(a, -4), 1, 'uint16');
  n10 = bitand(bitshift(a, -5), 1, 'uint16');
  n12 = bitand(bitshift(a, -6), 1, 'uint16');
  n14 = bitand(bitshift(a, -7), 1, 'uint16');
  n16 = bitand(bitshift(b, -0), 1, 'uint16');
  n18 = bitand(bitshift(b, -1), 1, 'uint16');
  n20 = bitand(bitshift(b, -2), 1, 'uint16');
  n22 = bitand(bitshift(b, -3), 1, 'uint16');
  n24 = bitand(bitshift(b, -4), 1, 'uint16');
  n26 = bitand(bitshift(b, -5), 1, 'uint16');
  n28 = bitand(bitshift(b, -6), 1, 'uint16');
  n30 = bitand(bitshift(b, -7), 1, 'uint16');
  n36 = bitcmp(bitxor(n28, n28));
  n37 = bitcmp(bitxor(n28, n28));
  n41 = bitcmp(bitxor(n12, n12));
  n43 = bitcmp(bitor(n6, bitor(n4, n37)));
  n49 = bitcmp(bitand(n41, bitand(n12, n6)));
  n50 = bitcmp(bitor(n8, n36));
  n51 = bitcmp(bitor(n8, n36));
  n55 = bitcmp(bitor(n6, n36));
  n57 = bitcmp(bitor(n41, n30));
  n60 = bitor(n41, n50);
  n61 = bitor(n41, n50);
  n62 = n41;
  n63 = n41;
  n70 = bitcmp(bitand(n10, n63));
  n71 = bitcmp(bitand(n10, n63));
  n75 = bitcmp(n57);
  n78 = bitcmp(bitor(n63, n60));
  n79 = bitcmp(bitor(n63, n60));
  n81 = bitand(n57, n12);
  n83 = bitand(n63, n60);
  n86 = n63;
  n88 = bitor(bitand(n51, n62), bitand(bitcmp(n51), n81));
  n89 = bitor(bitand(n51, n62), bitand(bitcmp(n51), n81));
  n92 = bitcmp(bitor(n89, n62));
  n93 = bitcmp(bitor(n89, n62));
  n97 = bitcmp(n41);
  n106 = bitcmp(bitor(bitand(n71, n12), n75));
  n110 = bitcmp(bitand(n79, n0));
  n115 = bitcmp(bitand(bitor(n6, n86), n49));
  n121 = bitand(n89, n16);
  n122 = bitcmp(bitor(n93, n106));
  n128 = bitand(n110, n86);
  n129 = bitand(n110, n86);
  n134 = bitand(n61, n78);
  n147 = bitcmp(bitand(n83, n86));
  n150 = bitor(bitand(n115, n16), bitand(bitcmp(n115), n22));
  n153 = n129;
  n160 = bitcmp(bitor(n18, n12));
  n163 = bitor(n121, n88);
  n222 = bitcmp(bitor(n43, n92));
  n233 = bitcmp(bitand(n81, bitand(n134, n22)));
  n238 = n163;
  n253 = bitcmp(bitor(n97, n122));
  n254 = bitand(n14, n18);
  n273 = bitcmp(bitor(n18, n12));
  n274 = bitcmp(bitand(n129, n134));
  n294 = n41;
  n313 = bitcmp(n233);
  n339 = bitcmp(bitand(n75, n160));
  n352 = bitor(bitand(n147, n12), bitand(bitcmp(n147), n313));
  n356 = bitand(n12, n20);
  n372 = bitand(n14, n20);
  n374 = n97;
  n417 = bitcmp(bitor(n4, bitor(n150, n128)));
  n432 = bitcmp(bitor(n153, n70));
  n435 = n55;
  n446 = bitand(n8, n22);
  n460 = bitand(n10, n22);
  n476 = bitand(n12, n22);
  n490 = bitand(n14, n22);
  n505 = bitand(n417, n294);
  n550 = bitand(n6, n24);
  n564 = bitand(n8, n24);
  n580 = bitand(n10, n24);
  n594 = bitand(n12, n24);
  n608 = bitand(n14, n24);
  n625 = bitand(n0, n26);
  n633 = bitcmp(bitor(bitand(n273, n222), n339));
  n654 = bitand(n4, n26);
  n668 = bitand(n6, n26);
  n669 = bitand(n6, n26);
  n682 = bitand(n8, n26);
  n691 = bitand(n6, n254);
  n698 = bitand(n10, n26);
  n712 = bitand(n12, n26);
  n728 = bitand(n14, n26);
  n729 = bitand(n14, n26);
  n756 = bitand(n2, n28);
  n786 = bitand(n6, n28);
  n802 = bitand(n8, n28);
  n816 = bitand(n10, n28);
  n832 = bitand(n12, n28);
  n846 = bitand(n14, n28);
  n876 = bitand(n2, n30);
  n890 = bitand(n4, n30);
  n906 = bitand(n6, n30);
  n920 = bitand(n8, n30);
  n934 = bitand(n10, n30);
  n950 = bitand(n12, n30);
  n964 = bitand(n14, n30);
  n1009 = n633;
  n1068 = bitxor(bitxor(n134, n238), n435);
  n1082 = bitand(n254, n356);
  n1098 = bitor(n254, n356);
  n1142 = n432;
  n1156 = bitxor(bitxor(n446, n550), n654);
  n1157 = bitor(bitor(bitand(n446, n550), bitand(n550, n654)), bitand(n446, n654));
  n1172 = bitxor(bitxor(n460, n564), n668);
  n1173 = bitor(bitor(bitand(n460, n564), bitand(n564, n668)), bitand(n460, n668));
  n1186 = bitxor(bitxor(n476, n580), n682);
  n1187 = bitor(bitor(bitand(n476, n580), bitand(n580, n682)), bitand(n476, n682));
  n1202 = bitxor(bitxor(n490, n594), n698);
  n1203 = bitor(bitor(bitand(n490, n594), bitand(n594, n698)), bitand(n490, n698));
  n1232 = bitxor(n608, n712);
  n1233 = bitand(n608, n712);
  n1277 = bitor(n625, n1009);
  n1320 = bitxor(bitxor(n1068, n1142), n1156);
  n1321 = bitor(bitor(bitand(n1068, n1142), bitand(n1142, n1156)), bitand(n1068, n1156));
  n1334 = bitxor(bitxor(n1098, n756), n1172);
  n1335 = bitor(bitor(bitand(n1098, n756), bitand(n756, n1172)), bitand(n1098, n1172));
  n1350 = bitxor(bitxor(n372, n1082), n1186);
  n1351 = bitor(bitor(bitand(n372, n1082), bitand(n1082, n1186)), bitand(n372, n1186));
  n1394 = bitxor(bitxor(n1157, n374), n876);
  n1395 = bitor(bitor(bitand(n1157, n374), bitand(n374, n876)), bitand(n1157, n876));
  n1408 = bitxor(bitxor(n1173, n786), n890);
  n1409 = bitor(bitor(bitand(n1173, n786), bitand(n786, n890)), bitand(n1173, n890));
  n1424 = bitxor(bitxor(n1187, n802), n906);
  n1425 = bitor(bitor(bitand(n1187, n802), bitand(n802, n906)), bitand(n1187, n906));
  n1434 = n163;
  n1438 = bitxor(bitxor(n1203, n816), n920);
  n1439 = bitor(bitor(bitand(n1203, n816), bitand(n816, n920)), bitand(n1203, n920));
  n1449 = n505;
  n1454 = bitxor(bitxor(n1233, n832), n934);
  n1455 = bitor(bitor(bitand(n1233, n832), bitand(n832, n934)), bitand(n1233, n934));
  n1468 = bitand(n846, n950);
  n1482 = bitxor(n846, n950);
  n1483 = bitand(n846, n950);
  n1528 = bitor(n1449, n1277);
  n1556 = bitxor(bitxor(n1320, n1434), n1483);
  n1572 = bitxor(bitxor(n1334, n1321), n1394);
  n1573 = bitor(bitor(bitand(n1334, n1321), bitand(n1321, n1394)), bitand(n1334, n1394));
  n1586 = bitxor(bitxor(n1350, n1335), n1408);
  n1587 = bitor(bitor(bitand(n1350, n1335), bitand(n1335, n1408)), bitand(n1350, n1408));
  n1602 = bitxor(bitxor(n1202, n1351), n1424);
  n1603 = bitor(bitor(bitand(n1202, n1351), bitand(n1351, n1424)), bitand(n1202, n1424));
  n1616 = bitand(n1232, n1438);
  n1632 = bitxor(n1232, n1438);
  n1646 = bitand(n729, n1454);
  n1660 = bitxor(n728, n1454);
  n1690 = bitor(n1528, n1156);
  n1691 = bitor(n1528, n1156);
  n1720 = n1556;
  n1734 = bitxor(n1572, n106);
  n1735 = bitand(n1572, n106);
  n1750 = bitxor(bitxor(n1586, n1573), n1395);
  n1751 = bitor(bitor(bitand(n1586, n1573), bitand(n1573, n1395)), bitand(n1586, n1395));
  n1764 = bitxor(bitxor(n1602, n1587), n1409);
  n1765 = bitor(bitor(bitand(n1602, n1587), bitand(n1587, n1409)), bitand(n1602, n1409));
  n1780 = bitxor(bitxor(n1632, n1603), n1425);
  n1781 = bitor(bitor(bitand(n1632, n1603), bitand(n1603, n1425)), bitand(n1632, n1425));
  n1794 = bitxor(bitxor(n1660, n1616), n1439);
  n1795 = bitor(bitor(bitand(n1660, n1616), bitand(n1616, n1439)), bitand(n1660, n1439));
  n1808 = bitxor(bitxor(n1482, n1646), n1455);
  n1809 = bitor(bitor(bitand(n1482, n1646), bitand(n1646, n1455)), bitand(n1482, n1455));
  n1824 = bitand(n964, n1468);
  n1838 = bitxor(n964, n1468);
  n1854 = bitxor(n1690, n106);
  n1868 = bitxor(n253, n1691);
  n1882 = bitor(bitand(n633, n274), bitand(bitcmp(n633), n1720));
  n1898 = n1734;
  n1912 = bitxor(n1750, n1735);
  n1928 = bitor(n1764, n1751);
  n1942 = bitxor(n1780, n1765);
  n1943 = bitand(n1780, n1765);
  n1956 = bitxor(bitxor(n1794, n1781), n1943);
  n1957 = bitor(bitor(bitand(n1794, n1781), bitand(n1781, n1943)), bitand(n1794, n1943));
  n1972 = bitxor(bitxor(n1808, n1795), n1957);
  n1973 = bitor(bitor(bitand(n1808, n1795), bitand(n1795, n1957)), bitand(n1808, n1957));
  n1986 = bitxor(bitxor(n1838, n1809), n1973);
  n1987 = bitor(bitor(bitand(n1838, n1809), bitand(n1809, n1973)), bitand(n1838, n1973));
  n2016 = bitor(n1824, n1987);
  c = bitor(c, bitshift(bitand(n57, 1), 0));
  c = bitor(c, bitshift(bitand(n1750, 1), 1));
  c = bitor(c, bitshift(bitand(n691, 1), 2));
  c = bitor(c, bitshift(bitand(n352, 1), 3));
  c = bitor(c, bitshift(bitand(n669, 1), 4));
  c = bitor(c, bitshift(bitand(n1854, 1), 5));
  c = bitor(c, bitshift(bitand(n1868, 1), 6));
  c = bitor(c, bitshift(bitand(n1882, 1), 7));
  c = bitor(c, bitshift(bitand(n1898, 1), 8));
  c = bitor(c, bitshift(bitand(n1912, 1), 9));
  c = bitor(c, bitshift(bitand(n1928, 1), 10));
  c = bitor(c, bitshift(bitand(n1942, 1), 11));
  c = bitor(c, bitshift(bitand(n1956, 1), 12));
  c = bitor(c, bitshift(bitand(n1972, 1), 13));
  c = bitor(c, bitshift(bitand(n1986, 1), 14));
  c = bitor(c, bitshift(bitand(n2016, 1), 15));
end