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mul8_112.c
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mul8_112.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_112
/// Library = EvoApprox8b
/// Circuit = mul8_112
/// Area (180) = 5636
/// Delay (180) = 3.990
/// Power (180) = 2263.40
/// Area (45) = 410
/// Delay (45) = 1.470
/// Power (45) = 198.10
/// Nodes = 98
/// HD = 295790
/// MAE = 177.44690
/// MSE = 51322.00000
/// MRE = 4.86 %
/// WCE = 1007
/// WCRE = 103 %
/// EP = 97.8 %
uint16_t mul8_112(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 n34;
uint8_t n36;
uint8_t n37;
uint8_t n38;
uint8_t n41;
uint8_t n43;
uint8_t n46;
uint8_t n49;
uint8_t n54;
uint8_t n57;
uint8_t n63;
uint8_t n70;
uint8_t n71;
uint8_t n72;
uint8_t n73;
uint8_t n81;
uint8_t n82;
uint8_t n83;
uint8_t n89;
uint8_t n91;
uint8_t n93;
uint8_t n99;
uint8_t n102;
uint8_t n121;
uint8_t n123;
uint8_t n203;
uint8_t n233;
uint8_t n235;
uint8_t n282;
uint8_t n398;
uint8_t n399;
uint8_t n415;
uint8_t n449;
uint8_t n514;
uint8_t n532;
uint8_t n548;
uint8_t n598;
uint8_t n648;
uint8_t n664;
uint8_t n682;
uint8_t n683;
uint8_t n749;
uint8_t n764;
uint8_t n782;
uint8_t n798;
uint8_t n814;
uint8_t n898;
uint8_t n914;
uint8_t n915;
uint8_t n932;
uint8_t n933;
uint8_t n948;
uint8_t n949;
uint8_t n1014;
uint8_t n1032;
uint8_t n1048;
uint8_t n1064;
uint8_t n1065;
uint8_t n1082;
uint8_t n1148;
uint8_t n1149;
uint8_t n1164;
uint8_t n1165;
uint8_t n1182;
uint8_t n1183;
uint8_t n1198;
uint8_t n1199;
uint8_t n1214;
uint8_t n1215;
uint8_t n1264;
uint8_t n1282;
uint8_t n1298;
uint8_t n1314;
uint8_t n1321;
uint8_t n1332;
uint8_t n1348;
uint8_t n1364;
uint8_t n1399;
uint8_t n1414;
uint8_t n1415;
uint8_t n1432;
uint8_t n1433;
uint8_t n1448;
uint8_t n1449;
uint8_t n1464;
uint8_t n1465;
uint8_t n1482;
uint8_t n1483;
uint8_t n1532;
uint8_t n1548;
uint8_t n1564;
uint8_t n1582;
uint8_t n1598;
uint8_t n1614;
uint8_t n1632;
uint8_t n1664;
uint8_t n1665;
uint8_t n1682;
uint8_t n1683;
uint8_t n1698;
uint8_t n1699;
uint8_t n1714;
uint8_t n1715;
uint8_t n1732;
uint8_t n1733;
uint8_t n1748;
uint8_t n1749;
uint8_t n1764;
uint8_t n1782;
uint8_t n1798;
uint8_t n1814;
uint8_t n1832;
uint8_t n1848;
uint8_t n1864;
uint8_t n1882;
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 = n18 & n14;
n34 = ~(n10 & n4 & n24);
n36 = ~(n10 | n34);
n37 = ~(n10 | n34);
n38 = ~(n10 | n34);
n41 = n18 & n38;
n43 = (n26 & n32) | (~n26 & n37);
n46 = n38 ^ n36;
n49 = ~(n46 & n14 & n6);
n54 = ~n49;
n57 = n41 & n12;
n63 = n14 ^ n20;
n70 = ~(n43 | n8 | n12);
n71 = ~(n43 | n8 | n12);
n72 = n2 & n28;
n73 = n2 & n28;
n81 = n28 & n38;
n82 = n71 & n38;
n83 = n71 & n38;
n89 = ~(n18 & n28);
n91 = n81 & n54;
n93 = ~(n2 & n82);
n99 = ~((n63 & n16) | n49);
n102 = n99;
n121 = ~(n89 & n38);
n123 = ~(n91 & n24);
n203 = ~((n22 & n38) | n81);
n233 = ~(n73 & n70 & n203);
n235 = ~(n99 | n102 | n233);
n282 = (n14 & n18) | (~n14 & n57);
n398 = n99;
n399 = n99;
n415 = n123 & n282;
n449 = ~n121;
n514 = n10 & n20;
n532 = n12 & n20;
n548 = n14 & n20;
n598 = n399 ^ n72;
n648 = n398 | n514;
n664 = n41 | n532;
n682 = n415 ^ n548;
n683 = n415 & n548;
n749 = n449 & n22;
n764 = n8 & n22;
n782 = n10 & n22;
n798 = n12 & n22;
n814 = n14 & n22;
n898 = n648 | n764;
n914 = n664 ^ n782;
n915 = n664 & n782;
n932 = (n682 ^ n798) ^ n915;
n933 = (n682 & n798) | (n798 & n915) | (n682 & n915);
n948 = (n683 ^ n814) ^ n933;
n949 = (n683 & n814) | (n814 & n933) | (n683 & n933);
n1014 = n6 & n24;
n1032 = n8 & n24;
n1048 = n10 & n24;
n1064 = n12 & n24;
n1065 = n12 & n24;
n1082 = n14 & n24;
n1148 = n898 ^ n1014;
n1149 = n898 & n1014;
n1164 = (n914 ^ n1032) ^ n1149;
n1165 = (n914 & n1032) | (n1032 & n1149) | (n914 & n1149);
n1182 = (n932 ^ n1048) ^ n1165;
n1183 = (n932 & n1048) | (n1048 & n1165) | (n932 & n1165);
n1198 = (n948 ^ n1064) ^ n1183;
n1199 = (n948 & n1064) | (n1064 & n1183) | (n948 & n1183);
n1214 = (n949 ^ n1082) ^ n1199;
n1215 = (n949 & n1082) | (n1082 & n1199) | (n949 & n1199);
n1264 = n4 & n26;
n1282 = n6 & n26;
n1298 = n8 & n26;
n1314 = n10 & n26;
n1321 = n449;
n1332 = n12 & n26;
n1348 = n14 & n26;
n1364 = ~(n93 ^ n598);
n1399 = n1148 | n1264;
n1414 = (n1164 ^ n1282) ^ n1399;
n1415 = (n1164 & n1282) | (n1282 & n1399) | (n1164 & n1399);
n1432 = (n1182 ^ n1298) ^ n1415;
n1433 = (n1182 & n1298) | (n1298 & n1415) | (n1182 & n1415);
n1448 = (n1198 ^ n1314) ^ n1433;
n1449 = (n1198 & n1314) | (n1314 & n1433) | (n1198 & n1433);
n1464 = (n1214 ^ n1332) ^ n1449;
n1465 = (n1214 & n1332) | (n1332 & n1449) | (n1214 & n1449);
n1482 = (n1215 ^ n1348) ^ n1465;
n1483 = (n1215 & n1348) | (n1348 & n1465) | (n1215 & n1465);
n1532 = n4 & n28;
n1548 = n6 & n28;
n1564 = n8 & n28;
n1582 = n10 & n28;
n1598 = n12 & n28;
n1614 = n14 & n28;
n1632 = n1065;
n1664 = n1414 ^ n1532;
n1665 = n1414 & n1532;
n1682 = (n1432 ^ n1548) ^ n1665;
n1683 = (n1432 & n1548) | (n1548 & n1665) | (n1432 & n1665);
n1698 = (n1448 ^ n1564) ^ n1683;
n1699 = (n1448 & n1564) | (n1564 & n1683) | (n1448 & n1683);
n1714 = (n1464 ^ n1582) ^ n1699;
n1715 = (n1464 & n1582) | (n1582 & n1699) | (n1464 & n1699);
n1732 = (n1482 ^ n1598) ^ n1715;
n1733 = (n1482 & n1598) | (n1598 & n1715) | (n1482 & n1715);
n1748 = (n1483 ^ n1614) ^ n1733;
n1749 = (n1483 & n1614) | (n1614 & n1733) | (n1483 & n1733);
n1764 = n0 & n30;
n1782 = n2 & n30;
n1798 = n4 & n30;
n1814 = n6 & n30;
n1832 = n8 & n30;
n1848 = n10 & n30;
n1864 = n12 & n30;
n1882 = n14 & n30;
n1898 = n235 ^ n1764;
n1899 = n235 & n1764;
n1914 = (n1664 ^ n1782) ^ n1899;
n1915 = (n1664 & n1782) | (n1782 & n1899) | (n1664 & n1899);
n1932 = (n1682 ^ n1798) ^ n1915;
n1933 = (n1682 & n1798) | (n1798 & n1915) | (n1682 & n1915);
n1948 = (n1698 ^ n1814) ^ n1933;
n1949 = (n1698 & n1814) | (n1814 & n1933) | (n1698 & n1933);
n1964 = (n1714 ^ n1832) ^ n1949;
n1965 = (n1714 & n1832) | (n1832 & n1949) | (n1714 & n1949);
n1982 = (n1732 ^ n1848) ^ n1965;
n1983 = (n1732 & n1848) | (n1848 & n1965) | (n1732 & n1965);
n1998 = (n1748 ^ n1864) ^ n1983;
n1999 = (n1748 & n1864) | (n1864 & n1983) | (n1748 & n1983);
n2014 = (n1749 ^ n1882) ^ n1999;
n2015 = (n1749 & n1882) | (n1882 & n1999) | (n1749 & n1999);
c |= (n1321 & 0x1) << 0;
c |= (n598 & 0x1) << 1;
c |= (n83 & 0x1) << 2;
c |= (n32 & 0x1) << 3;
c |= (n749 & 0x1) << 4;
c |= (n1364 & 0x1) << 5;
c |= (n1632 & 0x1) << 6;
c |= (n1898 & 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;
}