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mul8_427.m
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mul8_427.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_427( a, b )
% Approximate function mul8_427
% Library = EvoApprox8b
% Circuit = mul8_427
% Area (180) = 7014
% Delay (180) = 3.320
% Power (180) = 2841.50
% Area (45) = 514
% Delay (45) = 1.250
% Power (45) = 241.40
% Nodes = 130
% HD = 295706
% MAE = 167.51621
% MSE = 47467.18750
% MRE = 4.70 %
% WCE = 1094
% WCRE = 200 %
% EP = 98.3 %
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, n14);
n33 = bitand(n18, n14);
n36 = bitcmp(bitor(n26, bitor(n14, n22)));
n37 = bitcmp(bitor(n26, bitor(n14, n22)));
n38 = bitand(n33, n20);
n41 = bitxor(n28, n28);
n42 = bitcmp(bitand(n33, bitand(n16, n14)));
n46 = bitand(n2, n16);
n49 = bitxor(n18, n12);
n50 = bitcmp(bitand(n26, n20));
n54 = bitcmp(bitand(n49, n33));
n55 = bitcmp(bitand(n49, n33));
n56 = bitcmp(bitor(n49, n54));
n57 = bitcmp(bitor(n49, n54));
n63 = bitor(bitand(n55, n24), bitand(bitcmp(n55), n41));
n65 = bitcmp(bitor(n57, n55));
n70 = bitcmp(bitor(n65, n42));
n73 = bitcmp(n49);
n77 = bitand(n26, n70);
n80 = bitcmp(n18);
n86 = bitcmp(bitand(n14, bitand(n24, n77)));
n89 = n33;
n105 = bitor(n70, n12);
n106 = bitand(n63, n56);
n107 = bitand(n63, n56);
n121 = bitand(n2, n70);
n131 = bitor(bitor(bitand(n41, n4), bitand(n4, n107)), bitand(n41, n107));
n134 = bitand(n14, n16);
n137 = bitand(n73, n38);
n149 = bitcmp(bitand(bitor(n89, n20), n6));
n165 = bitand(n37, n131);
n209 = bitand(n8, n18);
n214 = bitcmp(n165);
n215 = bitcmp(n165);
n223 = bitcmp(bitand(bitor(n2, n0), n26));
n233 = n121;
n234 = bitcmp(n223);
n238 = bitand(n12, n18);
n246 = bitcmp(bitor(n223, n50));
n257 = bitcmp(bitor(n73, n86));
n281 = bitcmp(bitxor(n137, n246));
n301 = bitcmp(bitxor(n281, n42));
n310 = bitcmp(n149);
n343 = bitand(n10, n20);
n356 = bitand(n12, n20);
n372 = bitand(n14, n20);
n417 = bitand(n18, n310);
n446 = bitand(n8, n22);
n460 = bitand(n10, n22);
n476 = bitand(n12, n22);
n489 = bitor(n209, n70);
n490 = bitand(n14, n22);
n550 = bitor(n215, n24);
n564 = bitand(n8, n24);
n565 = bitand(n8, n24);
n580 = bitand(n10, n24);
n581 = bitand(n10, n24);
n594 = bitand(n12, n24);
n608 = bitand(n14, n24);
n654 = bitand(n4, n26);
n668 = bitand(n6, n26);
n682 = bitand(n8, n26);
n688 = bitxor(n105, n12);
n698 = bitand(n10, n26);
n709 = bitor(n33, n234);
n712 = bitand(n12, n26);
n728 = bitand(n14, n26);
n772 = bitand(n4, 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);
n980 = n46;
n981 = n46;
n1023 = bitcmp(bitor(n301, n54));
n1025 = bitor(n57, n214);
n1038 = bitor(bitand(n565, n80), bitand(bitcmp(n565), n106));
n1054 = n121;
n1055 = n121;
n1068 = bitxor(bitxor(n134, n238), n343);
n1069 = bitor(bitor(bitand(n134, n238), bitand(n238, n343)), bitand(n134, n343));
n1082 = bitand(n257, n356);
n1098 = bitxor(n65, n356);
n1126 = n77;
n1157 = bitor(bitand(n654, n550), bitand(bitcmp(n654), n446));
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);
n1246 = bitxor(n233, n981);
n1291 = bitor(bitor(bitand(n1038, n1025), bitand(n1025, n417)), bitand(n1038, n417));
n1306 = bitand(n1054, n36);
n1307 = bitand(n1054, n36);
n1321 = bitor(n1068, n1055);
n1334 = bitxor(bitxor(n1098, n1069), n1172);
n1335 = bitor(bitor(bitand(n1098, n1069), bitand(n1069, 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, n772), n876);
n1395 = bitor(bitor(bitand(n1157, n772), bitand(n772, 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));
n1438 = bitxor(bitxor(n1203, n816), n920);
n1439 = bitor(bitor(bitand(n1203, n816), bitand(n816, n920)), bitand(n1203, n920));
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);
n1528 = n489;
n1529 = n489;
n1542 = bitxor(n1306, n1291);
n1557 = bitand(n581, n1307);
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(n728, n1454);
n1660 = bitxor(n728, n1454);
n1676 = n709;
n1677 = n709;
n1691 = bitand(n1528, n1126);
n1706 = bitor(n1542, n1529);
n1734 = bitxor(n1572, n1557);
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(n1023, n1677);
n1868 = bitxor(n1706, n1691);
n1898 = bitor(n1734, n688);
n1912 = n1750;
n1928 = bitxor(n1764, n1751);
n1929 = bitand(n1764, n1751);
n1942 = bitxor(bitxor(n1780, n1765), n1929);
n1943 = bitor(bitor(bitand(n1780, n1765), bitand(n1765, n1929)), bitand(n1780, n1929));
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(n32, 1), 0));
c = bitor(c, bitshift(bitand(n980, 1), 1));
c = bitor(c, bitshift(bitand(n1246, 1), 2));
c = bitor(c, bitshift(bitand(n816, 1), 3));
c = bitor(c, bitshift(bitand(n1676, 1), 4));
c = bitor(c, bitshift(bitand(n1854, 1), 5));
c = bitor(c, bitshift(bitand(n1868, 1), 6));
c = bitor(c, bitshift(bitand(n1780, 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