EvoApproxLib^LITE

/***
* 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 mse parameters
***/
// MAE% = 0.78 %
// MAE = 2.0 
// WCE% = 1.56 %
// WCE = 4.0 
// WCRE% = 400.00 %
// EP% = 87.50 %
// MRE% = 8.05 %
// MSE = 5.5 
// PDK45_PWR = 0.023 mW
// PDK45_AREA = 48.8 um2
// PDK45_DELAY = 0.43 ns

module add8se_8PR (
    A,
    B,
    O
);

input [7:0] A;
input [7:0] B;
output [8:0] O;

wire sig_28,sig_29,sig_30,sig_31,sig_32,sig_33,sig_34,sig_35,sig_36,sig_37,sig_38,sig_39,sig_40,sig_41,sig_42,sig_43,sig_44,sig_45,sig_46,sig_47;
wire sig_48,sig_49,sig_50,sig_51,sig_52,sig_53,sig_54;

assign sig_28 = A[3] ^ B[3];
assign sig_29 = A[3] & B[3];
assign sig_30 = sig_28 & B[2];
assign sig_31 = sig_28 ^ B[2];
assign sig_32 = sig_29 | sig_30;
assign sig_33 = A[4] ^ B[4];
assign sig_34 = A[4] & B[4];
assign sig_35 = sig_33 & sig_32;
assign sig_36 = sig_33 ^ sig_32;
assign sig_37 = sig_34 | sig_35;
assign sig_38 = A[5] ^ B[5];
assign sig_39 = A[5] & B[5];
assign sig_40 = sig_38 & sig_37;
assign sig_41 = sig_38 ^ sig_37;
assign sig_42 = sig_39 | sig_40;
assign sig_43 = A[6] ^ B[6];
assign sig_44 = A[6] & B[6];
assign sig_45 = sig_43 & sig_42;
assign sig_46 = sig_43 ^ sig_42;
assign sig_47 = sig_44 | sig_45;
assign sig_48 = A[7] ^ B[7];
assign sig_49 = A[7] & B[7];
assign sig_50 = sig_48 & sig_47;
assign sig_51 = sig_48 ^ sig_47;
assign sig_52 = sig_49 | sig_50;
assign sig_53 = A[7] ^ B[7];
assign sig_54 = sig_53 ^ sig_52;

assign O[8] = sig_54;
assign O[7] = sig_51;
assign O[6] = sig_46;
assign O[5] = sig_41;
assign O[4] = sig_36;
assign O[3] = sig_31;
assign O[2] = A[2];
assign O[1] = A[1];
assign O[0] = A[0];

endmodule