/*** * 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 #include /// Approximate function mul8_433 /// Library = EvoApprox8b /// Circuit = mul8_433 /// Area (180) = 8448 /// Delay (180) = 3.720 /// Power (180) = 4454.10 /// Area (45) = 616 /// Delay (45) = 1.400 /// Power (45) = 390.20 /// Nodes = 120 /// HD = 0 /// MAE = 0.00000 /// MSE = 0.00000 /// MRE = 0.00 % /// WCE = 0 /// WCRE = 0 % /// EP = 0.0 % uint16_t mul8_433(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 n48; uint8_t n64; uint8_t n82; uint8_t n98; uint8_t n114; uint8_t n132; uint8_t n148; uint8_t n164; uint8_t n182; uint8_t n198; uint8_t n214; uint8_t n232; uint8_t n248; uint8_t n264; uint8_t n282; uint8_t n298; uint8_t n299; uint8_t n314; uint8_t n315; uint8_t n332; uint8_t n333; uint8_t n348; uint8_t n349; uint8_t n364; uint8_t n365; uint8_t n382; uint8_t n383; uint8_t n398; uint8_t n399; uint8_t n414; uint8_t n432; uint8_t n448; uint8_t n464; uint8_t n482; uint8_t n498; uint8_t n514; uint8_t n532; uint8_t n548; uint8_t n549; uint8_t n564; uint8_t n565; uint8_t n582; uint8_t n583; uint8_t n598; uint8_t n599; uint8_t n614; uint8_t n615; uint8_t n632; uint8_t n633; uint8_t n648; uint8_t n649; uint8_t n664; uint8_t n682; uint8_t n698; uint8_t n714; uint8_t n732; uint8_t n748; uint8_t n764; uint8_t n782; uint8_t n798; uint8_t n799; uint8_t n814; uint8_t n815; uint8_t n832; uint8_t n833; uint8_t n848; uint8_t n849; uint8_t n864; uint8_t n865; uint8_t n882; uint8_t n883; uint8_t n898; uint8_t n899; uint8_t n914; uint8_t n932; uint8_t n948; uint8_t n964; uint8_t n982; uint8_t n998; uint8_t n1014; uint8_t n1032; uint8_t n1048; uint8_t n1049; uint8_t n1064; uint8_t n1065; uint8_t n1082; uint8_t n1083; uint8_t n1098; uint8_t n1099; uint8_t n1114; uint8_t n1115; uint8_t n1132; uint8_t n1133; uint8_t n1148; uint8_t n1149; uint8_t n1164; uint8_t n1182; uint8_t n1198; uint8_t n1214; uint8_t n1232; uint8_t n1248; uint8_t n1264; uint8_t n1282; uint8_t n1298; uint8_t n1299; uint8_t n1314; uint8_t n1315; uint8_t n1332; uint8_t n1333; uint8_t n1348; uint8_t n1349; uint8_t n1364; uint8_t n1365; uint8_t n1382; uint8_t n1383; uint8_t n1398; uint8_t n1399; uint8_t n1414; uint8_t n1432; uint8_t n1448; uint8_t n1464; uint8_t n1482; uint8_t n1498; uint8_t n1514; uint8_t n1533; uint8_t n1548; uint8_t n1549; uint8_t n1564; uint8_t n1565; uint8_t n1582; uint8_t n1583; uint8_t n1598; uint8_t n1599; uint8_t n1614; uint8_t n1615; uint8_t n1632; uint8_t n1633; uint8_t n1648; uint8_t n1649; uint8_t n1664; uint8_t n1682; uint8_t n1698; uint8_t n1714; uint8_t n1732; uint8_t n1748; uint8_t n1764; uint8_t n1782; uint8_t n1798; uint8_t n1799; uint8_t n1814; uint8_t n1815; uint8_t n1832; uint8_t n1833; uint8_t n1848; uint8_t n1849; uint8_t n1864; uint8_t n1865; uint8_t n1882; uint8_t n1883; uint8_t n1898; uint8_t n1899; uint8_t n1914; uint8_t n1915; uint8_t n1932; uint8_t n1933; uint8_t n1948; uint8_t n1949; uint8_t n1964; uint8_t n1965; uint8_t n1982; uint8_t n1983; uint8_t n1998; uint8_t n1999; uint8_t n2014; uint8_t n2015; n32 = n0 & n16; n48 = n2 & n16; n64 = n4 & n16; n82 = n6 & n16; n98 = n8 & n16; n114 = n10 & n16; n132 = n12 & n16; n148 = n14 & n16; n164 = n0 & n18; n182 = n2 & n18; n198 = n4 & n18; n214 = n6 & n18; n232 = n8 & n18; n248 = n10 & n18; n264 = n12 & n18; n282 = n14 & n18; n298 = n48 ^ n164; n299 = n48 & n164; n314 = n64 ^ n182; n315 = n64 & n182; n332 = n82 ^ n198; n333 = n82 & n198; n348 = n98 ^ n214; n349 = n98 & n214; n364 = n114 ^ n232; n365 = n114 & n232; n382 = n132 ^ n248; n383 = n132 & n248; n398 = n148 ^ n264; n399 = n148 & n264; n414 = n0 & n20; n432 = n2 & n20; n448 = n4 & n20; n464 = n6 & n20; n482 = n8 & n20; n498 = n10 & n20; n514 = n12 & n20; n532 = n14 & n20; n548 = (n314 ^ n414) ^ n299; n549 = (n314 & n414) | (n414 & n299) | (n314 & n299); n564 = (n332 ^ n432) ^ n315; n565 = (n332 & n432) | (n432 & n315) | (n332 & n315); n582 = (n348 ^ n448) ^ n333; n583 = (n348 & n448) | (n448 & n333) | (n348 & n333); n598 = (n364 ^ n464) ^ n349; n599 = (n364 & n464) | (n464 & n349) | (n364 & n349); n614 = (n382 ^ n482) ^ n365; n615 = (n382 & n482) | (n482 & n365) | (n382 & n365); n632 = (n398 ^ n498) ^ n383; n633 = (n398 & n498) | (n498 & n383) | (n398 & n383); n648 = (n282 ^ n514) ^ n399; n649 = (n282 & n514) | (n514 & n399) | (n282 & n399); n664 = n0 & n22; n682 = n2 & n22; n698 = n4 & n22; n714 = n6 & n22; n732 = n8 & n22; n748 = n10 & n22; n764 = n12 & n22; n782 = n14 & n22; n798 = (n564 ^ n664) ^ n549; n799 = (n564 & n664) | (n664 & n549) | (n564 & n549); n814 = (n582 ^ n682) ^ n565; n815 = (n582 & n682) | (n682 & n565) | (n582 & n565); n832 = (n598 ^ n698) ^ n583; n833 = (n598 & n698) | (n698 & n583) | (n598 & n583); n848 = (n614 ^ n714) ^ n599; n849 = (n614 & n714) | (n714 & n599) | (n614 & n599); n864 = (n632 ^ n732) ^ n615; n865 = (n632 & n732) | (n732 & n615) | (n632 & n615); n882 = (n648 ^ n748) ^ n633; n883 = (n648 & n748) | (n748 & n633) | (n648 & n633); n898 = (n532 ^ n764) ^ n649; n899 = (n532 & n764) | (n764 & n649) | (n532 & n649); n914 = n0 & n24; n932 = n2 & n24; n948 = n4 & n24; n964 = n6 & n24; n982 = n8 & n24; n998 = n10 & n24; n1014 = n12 & n24; n1032 = n14 & n24; n1048 = (n814 ^ n914) ^ n799; n1049 = (n814 & n914) | (n914 & n799) | (n814 & n799); n1064 = (n832 ^ n932) ^ n815; n1065 = (n832 & n932) | (n932 & n815) | (n832 & n815); n1082 = (n848 ^ n948) ^ n833; n1083 = (n848 & n948) | (n948 & n833) | (n848 & n833); n1098 = (n864 ^ n964) ^ n849; n1099 = (n864 & n964) | (n964 & n849) | (n864 & n849); n1114 = (n882 ^ n982) ^ n865; n1115 = (n882 & n982) | (n982 & n865) | (n882 & n865); n1132 = (n898 ^ n998) ^ n883; n1133 = (n898 & n998) | (n998 & n883) | (n898 & n883); n1148 = (n782 ^ n1014) ^ n899; n1149 = (n782 & n1014) | (n1014 & n899) | (n782 & n899); n1164 = n0 & n26; n1182 = n2 & n26; n1198 = n4 & n26; n1214 = n6 & n26; n1232 = n8 & n26; n1248 = n10 & n26; n1264 = n12 & n26; n1282 = n14 & n26; n1298 = (n1064 ^ n1164) ^ n1049; n1299 = (n1064 & n1164) | (n1164 & n1049) | (n1064 & n1049); n1314 = (n1082 ^ n1182) ^ n1065; n1315 = (n1082 & n1182) | (n1182 & n1065) | (n1082 & n1065); n1332 = (n1098 ^ n1198) ^ n1083; n1333 = (n1098 & n1198) | (n1198 & n1083) | (n1098 & n1083); n1348 = (n1114 ^ n1214) ^ n1099; n1349 = (n1114 & n1214) | (n1214 & n1099) | (n1114 & n1099); n1364 = (n1132 ^ n1232) ^ n1115; n1365 = (n1132 & n1232) | (n1232 & n1115) | (n1132 & n1115); n1382 = (n1148 ^ n1248) ^ n1133; n1383 = (n1148 & n1248) | (n1248 & n1133) | (n1148 & n1133); n1398 = (n1032 ^ n1264) ^ n1149; n1399 = (n1032 & n1264) | (n1264 & n1149) | (n1032 & n1149); n1414 = n0 & n28; n1432 = n2 & n28; n1448 = n4 & n28; n1464 = n6 & n28; n1482 = n8 & n28; n1498 = n10 & n28; n1514 = n12 & n28; n1533 = n14 & n28; n1548 = (n1314 ^ n1414) ^ n1299; n1549 = (n1314 & n1414) | (n1414 & n1299) | (n1314 & n1299); n1564 = (n1332 ^ n1432) ^ n1315; n1565 = (n1332 & n1432) | (n1432 & n1315) | (n1332 & n1315); n1582 = (n1348 ^ n1448) ^ n1333; n1583 = (n1348 & n1448) | (n1448 & n1333) | (n1348 & n1333); n1598 = (n1364 ^ n1464) ^ n1349; n1599 = (n1364 & n1464) | (n1464 & n1349) | (n1364 & n1349); n1614 = (n1382 ^ n1482) ^ n1365; n1615 = (n1382 & n1482) | (n1482 & n1365) | (n1382 & n1365); n1632 = (n1398 ^ n1498) ^ n1383; n1633 = (n1398 & n1498) | (n1498 & n1383) | (n1398 & n1383); n1648 = (n1282 ^ n1514) ^ n1399; n1649 = (n1282 & n1514) | (n1514 & n1399) | (n1282 & n1399); n1664 = n0 & n30; n1682 = n2 & n30; n1698 = n4 & n30; n1714 = n6 & n30; n1732 = n8 & n30; n1748 = n10 & n30; n1764 = n12 & n30; n1782 = n14 & n30; n1798 = (n1564 ^ n1664) ^ n1549; n1799 = (n1564 & n1664) | (n1664 & n1549) | (n1564 & n1549); n1814 = (n1582 ^ n1682) ^ n1565; n1815 = (n1582 & n1682) | (n1682 & n1565) | (n1582 & n1565); n1832 = (n1598 ^ n1698) ^ n1583; n1833 = (n1598 & n1698) | (n1698 & n1583) | (n1598 & n1583); n1848 = (n1614 ^ n1714) ^ n1599; n1849 = (n1614 & n1714) | (n1714 & n1599) | (n1614 & n1599); n1864 = (n1632 ^ n1732) ^ n1615; n1865 = (n1632 & n1732) | (n1732 & n1615) | (n1632 & n1615); n1882 = (n1648 ^ n1748) ^ n1633; n1883 = (n1648 & n1748) | (n1748 & n1633) | (n1648 & n1633); n1898 = (n1533 ^ n1764) ^ n1649; n1899 = (n1533 & n1764) | (n1764 & n1649) | (n1533 & n1649); n1914 = n1814 ^ n1799; n1915 = n1814 & n1799; n1932 = (n1832 ^ n1815) ^ n1915; n1933 = (n1832 & n1815) | (n1815 & n1915) | (n1832 & n1915); n1948 = (n1848 ^ n1833) ^ n1933; n1949 = (n1848 & n1833) | (n1833 & n1933) | (n1848 & n1933); n1964 = (n1864 ^ n1849) ^ n1949; n1965 = (n1864 & n1849) | (n1849 & n1949) | (n1864 & n1949); n1982 = (n1882 ^ n1865) ^ n1965; n1983 = (n1882 & n1865) | (n1865 & n1965) | (n1882 & n1965); n1998 = (n1898 ^ n1883) ^ n1983; n1999 = (n1898 & n1883) | (n1883 & n1983) | (n1898 & n1983); n2014 = (n1782 ^ n1899) ^ n1999; n2015 = (n1782 & n1899) | (n1899 & n1999) | (n1782 & n1999); c |= (n32 & 0x1) << 0; c |= (n298 & 0x1) << 1; c |= (n548 & 0x1) << 2; c |= (n798 & 0x1) << 3; c |= (n1048 & 0x1) << 4; c |= (n1298 & 0x1) << 5; c |= (n1548 & 0x1) << 6; c |= (n1798 & 0x1) << 7; c |= (n1914 & 0x1) << 8; c |= (n1932 & 0x1) << 9; c |= (n1948 & 0x1) << 10; c |= (n1964 & 0x1) << 11; c |= (n1982 & 0x1) << 12; c |= (n1998 & 0x1) << 13; c |= (n2014 & 0x1) << 14; c |= (n2015 & 0x1) << 15; return c; }