/*** * 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 a sub-set of pareto optimal circuits with respect to the pwr and mae parameters ***/ // MAE% = 4.83 % // MAE = 3168 // WCE% = 19.46 % // WCE = 12754 // WCRE% = 100.00 % // EP% = 99.20 % // MRE% = 44.00 % // MSE = 15608.397e3 // PDK45_PWR = 0.0085 mW // PDK45_AREA = 41.3 um2 // PDK45_DELAY = 0.20 ns #include #include uint64_t mul8u_13QR(const uint64_t B,const uint64_t A) { uint64_t O, dout_180, dout_256, dout_257, dout_259, dout_266, dout_268, dout_283, dout_307, dout_311, dout_329, dout_330, dout_331, dout_332, dout_333, dout_334, dout_335; int avg=0; dout_180=((B >> 7)&1)&((A >> 5)&1); dout_256=((A >> 6)&1)&((B >> 6)&1); dout_257=((B >> 7)&1)&((A >> 6)&1); dout_259=dout_256|dout_180; dout_266=((B >> 5)&1)&((A >> 7)&1); dout_268=((B >> 7)&1)&((A >> 7)&1); dout_283=((A >> 7)&1)&((B >> 5)&1); dout_307=((A >> 7)&1)&((B >> 6)&1); dout_311=dout_266&((B >> 6)&1); dout_329=dout_307^dout_283; dout_330=dout_307&((B >> 5)&1); dout_331=dout_268^dout_257; dout_332=((A >> 7)&1)&dout_257; dout_333=((B >> 7)&1)&dout_311; dout_334=dout_331^dout_330; dout_335=dout_332|dout_333; O = 0; O |= (0&1) << 0; O |= (dout_268&1) << 1; O |= (0&1) << 2; O |= (0&1) << 3; O |= (dout_180&1) << 4; O |= (0&1) << 5; O |= (dout_332&1) << 6; O |= (dout_259&1) << 7; O |= (dout_259&1) << 8; O |= (0&1) << 9; O |= (dout_180&1) << 10; O |= (dout_259&1) << 11; O |= (dout_259&1) << 12; O |= (dout_329&1) << 13; O |= (dout_334&1) << 14; O |= (dout_335&1) << 15; return O; }