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mul8_331.m
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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.
function [ c ] = mul8_331( a, b )
% Approximate function mul8_331
% Library = EvoApprox8b
% Circuit = mul8_331
% Area (180) = 4971
% Delay (180) = 2.310
% Power (180) = 1722.60
% Area (45) = 371
% Delay (45) = 0.890
% Power (45) = 145.90
% Nodes = 103
% HD = 378530
% MAE = 595.28110
% MSE = 709225.78125
% MRE = 8.68 %
% WCE = 3043
% WCRE = 300 %
% EP = 99.1 %
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');
n32 = bitand(n18, n12);
n35 = bitor(bitor(bitand(n14, n16), bitand(n16, n26)), bitand(n14, n26));
n40 = bitcmp(bitxor(n12, n12));
n41 = bitcmp(bitxor(n12, n12));
n42 = bitcmp(bitand(n14, n20));
n44 = bitor(n42, n20);
n49 = bitcmp(bitor(bitand(n18, n14), n32));
n51 = bitor(bitor(bitand(n41, n0), bitand(n0, n2)), bitand(n41, n2));
n53 = bitcmp(bitand(bitor(n12, n51), n30));
n61 = bitcmp(bitand(n12, bitand(n28, n14)));
n65 = n41;
n66 = n65;
n68 = bitcmp(bitand(n65, n66));
n69 = bitcmp(bitand(n65, n66));
n82 = bitcmp(bitor(n6, bitor(n4, n14)));
n83 = bitcmp(bitor(n6, bitor(n4, n14)));
n87 = bitor(n30, n24);
n91 = bitcmp(bitor(n87, bitor(n28, n35)));
n118 = bitand(n91, n20);
n120 = bitand(n12, n118);
n121 = bitand(n12, n118);
n157 = bitcmp(bitor(bitand(n53, n82), n91));
n175 = bitcmp(n83);
n190 = bitcmp(n69);
n203 = bitor(bitand(n175, n40), bitand(bitcmp(n175), n2));
n258 = bitand(n203, n28);
n261 = bitcmp(n61);
n278 = bitor(n10, n44);
n301 = n69;
n306 = bitor(n22, n20);
n325 = bitor(n301, n42);
n386 = bitor(n6, n8);
n420 = bitand(n26, n386);
n460 = bitand(n10, n306);
n476 = bitand(n12, n22);
n481 = n41;
n482 = bitcmp(n53);
n484 = bitcmp(n49);
n491 = bitand(n14, n22);
n532 = bitcmp(n325);
n564 = bitand(n8, n24);
n580 = bitand(n10, n24);
n595 = bitand(n12, n24);
n608 = bitand(n14, n24);
n682 = bitor(n41, n306);
n698 = bitand(n10, n26);
n712 = bitand(n12, n26);
n728 = bitand(n14, n26);
n729 = bitand(n14, n26);
n802 = bitand(n8, n28);
n816 = bitand(n10, n28);
n817 = bitand(n10, n28);
n832 = bitand(n12, n28);
n846 = bitand(n14, n28);
n854 = n595;
n891 = bitand(n4, n30);
n906 = bitand(n6, n30);
n920 = bitand(n8, n30);
n921 = bitand(n8, n30);
n934 = bitand(n10, n30);
n950 = bitand(n12, n30);
n965 = bitand(n14, n30);
n1041 = n121;
n1054 = n120;
n1055 = n120;
n1069 = bitand(n481, n682);
n1107 = n491;
n1142 = n157;
n1143 = n157;
n1172 = bitor(n460, n564);
n1186 = bitxor(n476, n580);
n1187 = bitand(n476, n580);
n1202 = bitxor(bitxor(n1107, n854), n698);
n1203 = bitor(bitor(bitand(n1107, n854), bitand(n854, n698)), bitand(n1107, n698));
n1216 = bitand(n608, n712);
n1232 = bitxor(n608, n712);
n1246 = n1055;
n1307 = bitor(n157, n1054);
n1321 = n1041;
n1335 = bitor(bitor(bitand(n817, n1069), bitand(n1069, n1172)), bitand(n817, n1172));
n1350 = bitxor(bitxor(n891, n420), n1186);
n1351 = bitor(bitor(bitand(n891, n420), bitand(n420, n1186)), bitand(n891, n1186));
n1424 = bitxor(bitxor(n1187, n802), n906);
n1425 = bitor(bitor(bitand(n1187, n802), bitand(n802, n906)), bitand(n1187, n906));
n1438 = bitxor(bitxor(n1203, n816), n920);
n1439 = bitor(bitor(bitand(n1203, n816), bitand(n816, n920)), bitand(n1203, n920));
n1454 = bitxor(bitxor(n1216, n832), n934);
n1455 = bitor(bitor(bitand(n1216, n832), bitand(n832, n934)), bitand(n1216, n934));
n1468 = bitand(n261, n482);
n1482 = bitxor(n846, n950);
n1483 = bitand(n846, n950);
n1586 = bitxor(n1350, n1335);
n1587 = bitand(n1350, n1335);
n1602 = bitxor(bitxor(n1202, n1216), n1424);
n1603 = bitor(bitor(bitand(n1202, n1216), bitand(n1216, n1424)), bitand(n1202, n1424));
n1616 = bitand(n1232, n1438);
n1632 = bitor(n1232, n1438);
n1646 = bitand(n728, n1454);
n1660 = bitxor(n728, n1454);
n1678 = n1483;
n1706 = bitxor(bitxor(n921, n68), n1321);
n1712 = bitcmp(bitor(n921, n278));
n1720 = bitor(bitand(n1307, n190), bitand(bitcmp(n1307), n1425));
n1734 = bitor(n1603, n484);
n1750 = bitor(n1586, n532);
n1764 = bitxor(bitxor(n1602, n1587), n1351);
n1765 = bitor(bitor(bitand(n1602, n1587), bitand(n1587, n1351)), bitand(n1602, n1351));
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(n41, n1468);
n1838 = bitxor(n965, n1678);
n1869 = n1706;
n1882 = n1720;
n1898 = bitor(n1734, n258);
n1912 = n1750;
n1928 = n1764;
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(n729, 1), 0));
c = bitor(c, bitshift(bitand(n1142, 1), 1));
c = bitor(c, bitshift(bitand(n1246, 1), 2));
c = bitor(c, bitshift(bitand(n1712, 1), 3));
c = bitor(c, bitshift(bitand(n1869, 1), 4));
c = bitor(c, bitshift(bitand(n1882, 1), 5));
c = bitor(c, bitshift(bitand(n1143, 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