/*** * 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, L. Sekanina, Z. Vasicek "Libraries of Approximate Circuits: Automated Design and Application in CNN Accelerators" IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Vol 10, No 4, 2020 * This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and wce parameters ***/ // MAE% = 7.97 % // MAE = 10 // WCE% = 19.53 % // WCE = 25 // WCRE% = 2500.00 % // EP% = 96.88 % // MRE% = 61.40 % // MSE = 158 // PDK45_PWR = 0.016 mW // PDK45_AREA = 39.4 um2 // PDK45_DELAY = 0.37 ns #include #include uint64_t add8s_7M8(const uint64_t A /* 8-bit signed operand */, const uint64_t B /* 8-bit signed operand */) { uint64_t dout_30, dout_31, dout_33, dout_34, dout_35, dout_37, dout_38, dout_39, dout_40, dout_41, dout_42, dout_43, dout_45, dout_46, dout_47, dout_48, dout_49; uint64_t O; dout_30=((A >> 7)&1)&((B >> 7)&1); dout_31=((A >> 6)&1)&((B >> 6)&1); dout_33=((A >> 4)&1)|((B >> 4)&1); dout_34=((A >> 4)&1)&((B >> 4)&1); dout_35=dout_33&dout_30; dout_37=dout_34|dout_35; dout_38=((A >> 5)&1)^((B >> 5)&1); dout_39=((A >> 5)&1)&((B >> 5)&1); dout_40=dout_38&dout_37; dout_41=dout_38^dout_37; dout_42=dout_39|dout_40; dout_43=((A >> 6)&1)^((B >> 6)&1); dout_45=dout_43&dout_42; dout_46=dout_43^dout_42; dout_47=dout_31|dout_45; dout_48=((A >> 7)&1)^((B >> 7)&1); dout_49=dout_48^dout_47; O = 0; O |= (((A >> 0)&1)&1) << 0; O |= (0&1) << 1; O |= (((A >> 2)&1)&1) << 2; O |= (((B >> 3)&1)&1) << 3; O |= (((A >> 3)&1)&1) << 4; O |= (dout_41&1) << 5; O |= (dout_46&1) << 6; O |= (dout_49&1) << 7; return O; }