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mul8_327.c
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mul8_327.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 mul8_327
/// Library = EvoApprox8b
/// Circuit = mul8_327
/// Area (180) = 4072
/// Delay (180) = 2.170
/// Power (180) = 1505.50
/// Area (45) = 295
/// Delay (45) = 0.830
/// Power (45) = 128.10
/// Nodes = 79
/// HD = 376002
/// MAE = 624.46875
/// MSE = 679898.57422
/// MRE = 10.00 %
/// WCE = 2911
/// WCRE = 700 %
/// EP = 99.0 %
uint16_t mul8_327(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 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 n41;
uint8_t n62;
uint8_t n71;
uint8_t n82;
uint8_t n83;
uint8_t n87;
uint8_t n89;
uint8_t n91;
uint8_t n125;
uint8_t n157;
uint8_t n161;
uint8_t n190;
uint8_t n345;
uint8_t n372;
uint8_t n386;
uint8_t n420;
uint8_t n460;
uint8_t n476;
uint8_t n491;
uint8_t n506;
uint8_t n564;
uint8_t n580;
uint8_t n594;
uint8_t n608;
uint8_t n683;
uint8_t n699;
uint8_t n712;
uint8_t n728;
uint8_t n761;
uint8_t n786;
uint8_t n802;
uint8_t n816;
uint8_t n817;
uint8_t n832;
uint8_t n846;
uint8_t n847;
uint8_t n890;
uint8_t n906;
uint8_t n920;
uint8_t n921;
uint8_t n934;
uint8_t n950;
uint8_t n964;
uint8_t n1034;
uint8_t n1107;
uint8_t n1173;
uint8_t n1186;
uint8_t n1187;
uint8_t n1202;
uint8_t n1203;
uint8_t n1216;
uint8_t n1232;
uint8_t n1246;
uint8_t n1335;
uint8_t n1350;
uint8_t n1351;
uint8_t n1408;
uint8_t n1424;
uint8_t n1425;
uint8_t n1438;
uint8_t n1439;
uint8_t n1454;
uint8_t n1455;
uint8_t n1468;
uint8_t n1482;
uint8_t n1542;
uint8_t n1543;
uint8_t n1586;
uint8_t n1587;
uint8_t n1602;
uint8_t n1603;
uint8_t n1616;
uint8_t n1632;
uint8_t n1646;
uint8_t n1660;
uint8_t n1720;
uint8_t n1750;
uint8_t n1764;
uint8_t n1765;
uint8_t n1780;
uint8_t n1781;
uint8_t n1794;
uint8_t n1795;
uint8_t n1808;
uint8_t n1809;
uint8_t n1824;
uint8_t n1838;
uint8_t n1882;
uint8_t n1898;
uint8_t n1912;
uint8_t n1928;
uint8_t n1942;
uint8_t n1943;
uint8_t n1956;
uint8_t n1957;
uint8_t n1972;
uint8_t n1973;
uint8_t n1986;
uint8_t n1987;
uint8_t n2016;
n41 = ~(n12 ^ n12);
n62 = ~n41;
n71 = n14 | n8;
n82 = ~(n6 | n4 | n71);
n83 = ~(n6 | n4 | n71);
n87 = n26 | n24;
n89 = ~(n2 & n28 & n83);
n91 = ~(n87 | n28 | n22);
n125 = ~n41;
n157 = ~((n89 & n82) | n91);
n161 = n18 & n12;
n190 = ~n125;
n345 = ~(n18 & n62);
n372 = n14 & n20;
n386 = n6 & n4;
n420 = n26 & n386;
n460 = n10 & n22;
n476 = n12 & n22;
n491 = n14 & n22;
n506 = n0 & n20;
n564 = n8 & n24;
n580 = n10 & n24;
n594 = n12 & n24;
n608 = n14 & n24;
n683 = n8 & n26;
n699 = n10 & n26;
n712 = n12 & n26;
n728 = n14 & n26;
n761 = ~n345;
n786 = n6 & n28;
n802 = n8 & n28;
n816 = n10 & n28;
n817 = n10 & n28;
n832 = n12 & n28;
n846 = n14 & n28;
n847 = n14 & n28;
n890 = n4 & n30;
n906 = n6 & n30;
n920 = n8 & n30;
n921 = n8 & n30;
n934 = n10 & n30;
n950 = n12 & n30;
n964 = n14 & n30;
n1034 = ~(n125 & n920 & n41);
n1107 = n491;
n1173 = n460 | n564;
n1186 = n476 ^ n580;
n1187 = n476 & n580;
n1202 = (n1107 ^ n594) ^ n699;
n1203 = (n1107 & n594) | (n594 & n699) | (n1107 & n699);
n1216 = n608 & n712;
n1232 = n608 ^ n712;
n1246 = ~(n921 | n1034);
n1335 = ~((n817 & n62) | n41);
n1350 = (n372 ^ n420) ^ n1186;
n1351 = (n372 & n420) | (n420 & n1186) | (n372 & n1186);
n1408 = n1173 | n786;
n1424 = (n1187 ^ n802) ^ n906;
n1425 = (n1187 & n802) | (n802 & n906) | (n1187 & n906);
n1438 = (n1203 ^ n816) ^ n920;
n1439 = (n1203 & n816) | (n816 & n920) | (n1203 & n920);
n1454 = (n1216 ^ n832) ^ n934;
n1455 = (n1216 & n832) | (n832 & n934) | (n1216 & n934);
n1468 = n846 & n950;
n1482 = n847 ^ n950;
n1542 = n157;
n1543 = n157;
n1586 = (n1350 ^ n1335) ^ n1408;
n1587 = (n1350 & n1335) | (n1335 & n1408) | (n1350 & n1408);
n1602 = (n1202 ^ n1216) ^ n1424;
n1603 = (n1202 & n1216) | (n1216 & n1424) | (n1202 & n1424);
n1616 = n1232 & n1438;
n1632 = n1232 | n1438;
n1646 = n728 & n1454;
n1660 = n728 ^ n1454;
n1720 = n1425 ^ n1543;
n1750 = n1586 | n890;
n1764 = (n1602 ^ n1587) ^ n1351;
n1765 = (n1602 & n1587) | (n1587 & n1351) | (n1602 & n1351);
n1780 = (n1632 ^ n1603) ^ n1425;
n1781 = (n1632 & n1603) | (n1603 & n1425) | (n1632 & n1425);
n1794 = (n1660 ^ n1616) ^ n1439;
n1795 = (n1660 & n1616) | (n1616 & n1439) | (n1660 & n1439);
n1808 = (n1482 ^ n1646) ^ n1455;
n1809 = (n1482 & n1646) | (n1646 & n1455) | (n1482 & n1455);
n1824 = n345 & n1468;
n1838 = n964 ^ n1468;
n1882 = n1720;
n1898 = n161 | n890;
n1912 = (n683 & n190) | (~n683 & n1750);
n1928 = n1764;
n1942 = n1780 ^ n1765;
n1943 = n1780 & n1765;
n1956 = (n1794 ^ n1781) ^ n1943;
n1957 = (n1794 & n1781) | (n1781 & n1943) | (n1794 & n1943);
n1972 = (n1808 ^ n1795) ^ n1957;
n1973 = (n1808 & n1795) | (n1795 & n1957) | (n1808 & n1957);
n1986 = (n1838 ^ n1809) ^ n1973;
n1987 = (n1838 & n1809) | (n1809 & n1973) | (n1838 & n1973);
n2016 = n1824 | n1987;
c |= (n761 & 0x1) << 0;
c |= (n1542 & 0x1) << 1;
c |= (n1246 & 0x1) << 2;
c |= (n1216 & 0x1) << 3;
c |= (n125 & 0x1) << 4;
c |= (n506 & 0x1) << 5;
c |= (n1543 & 0x1) << 6;
c |= (n1882 & 0x1) << 7;
c |= (n1898 & 0x1) << 8;
c |= (n1912 & 0x1) << 9;
c |= (n1928 & 0x1) << 10;
c |= (n1942 & 0x1) << 11;
c |= (n1956 & 0x1) << 12;
c |= (n1972 & 0x1) << 13;
c |= (n1986 & 0x1) << 14;
c |= (n2016 & 0x1) << 15;
return c;
}