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mul8s_1KVB_pdk45.v
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mul8s_1KVB_pdk45.v
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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, Z. Vasicek, L. Sekanina, H. Jiang and J. Han, "Scalable Construction of Approximate Multipliers With Formally Guaranteed Worst Case Error" in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 26, no. 11, pp. 2572-2576, Nov. 2018. doi: 10.1109/TVLSI.2018.2856362
* This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and mse parameters
***/
// MAE% = 0.0064 %
// MAE = 4.2
// WCE% = 0.026 %
// WCE = 17
// WCRE% = 1700.00 %
// EP% = 68.75 %
// MRE% = 0.90 %
// MSE = 34
// PDK45_PWR = 0.410 mW
// PDK45_AREA = 685.2 um2
// PDK45_DELAY = 1.47 ns
module mul8s_1KVB ( A, B, O );
input [7:0] A;
input [7:0] B;
output [15:0] O;
wire C_1_2,C_1_3,C_1_4,C_1_5,C_1_6,C_1_7,C_2_1,C_2_2,C_2_3,C_2_4,C_2_5,C_2_6,C_2_7,C_3_0,C_3_1,C_3_2,C_3_3,C_3_4,C_3_5,C_3_6,C_3_7,C_4_0,C_4_1,C_4_2,C_4_3,C_4_4,C_4_5,C_4_6,C_4_7,C_5_0,C_5_1,C_5_2,C_5_3,C_5_4,C_5_5,C_5_6,C_5_7,C_6_0,C_6_1,C_6_2,C_6_3,C_6_4,C_6_5,C_6_6,C_6_7,C_7_0,C_7_1,C_7_2,C_7_3,C_7_4,C_7_5,C_7_6,C_7_7,C_8_0,C_8_1,C_8_2,C_8_3,C_8_4,C_8_5,C_8_6,C_8_7,S_0_3,S_0_4,S_0_5,S_0_6,S_0_7,S_1_2,S_1_3,S_1_4,S_1_5,S_1_6,S_1_7,S_2_1,S_2_2,S_2_3,S_2_4,S_2_5,S_2_6,S_2_7,S_3_0,S_3_1,S_3_2,S_3_3,S_3_4,S_3_5,S_3_6,S_3_7,S_4_0,S_4_1,S_4_2,S_4_3,S_4_4,S_4_5,S_4_6,S_4_7,S_5_0,S_5_1,S_5_2,S_5_3,S_5_4,S_5_5,S_5_6,S_5_7,S_6_0,S_6_1,S_6_2,S_6_3,S_6_4,S_6_5,S_6_6,S_6_7,S_7_0,S_7_1,S_7_2,S_7_3,S_7_4,S_7_5,S_7_6,S_7_7,S_8_0,S_8_1,S_8_2,S_8_3,S_8_4,S_8_5,S_8_6,S_8_7;
assign S_0_3 = (A[0] & B[3]);
assign S_0_4 = (A[0] & B[4]);
assign S_0_5 = (A[0] & B[5]);
assign S_0_6 = (A[0] & B[6]);
assign S_0_7 = ~(A[0] & B[7]);
HAX1 U443 (.A(S_0_3), .B((A[1] & B[2])), .YS(S_1_2), .YC(C_1_2));
HAX1 U444 (.A(S_0_4), .B((A[1] & B[3])), .YS(S_1_3), .YC(C_1_3));
HAX1 U445 (.A(S_0_5), .B((A[1] & B[4])), .YS(S_1_4), .YC(C_1_4));
HAX1 U446 (.A(S_0_6), .B((A[1] & B[5])), .YS(S_1_5), .YC(C_1_5));
HAX1 U447 (.A(S_0_7), .B((A[1] & B[6])), .YS(S_1_6), .YC(C_1_6));
HAX1 U448 (.A(1'b1), .B(~(A[1] & B[7])), .YS(S_1_7), .YC(C_1_7));
HAX1 U450 (.A(S_1_2), .B((A[2] & B[1])), .YS(S_2_1), .YC(C_2_1));
FAX1 U451 (.A(S_1_3), .B(C_1_2), .C((A[2] & B[2])), .YS(S_2_2), .YC(C_2_2));
FAX1 U452 (.A(S_1_4), .B(C_1_3), .C((A[2] & B[3])), .YS(S_2_3), .YC(C_2_3));
FAX1 U453 (.A(S_1_5), .B(C_1_4), .C((A[2] & B[4])), .YS(S_2_4), .YC(C_2_4));
FAX1 U454 (.A(S_1_6), .B(C_1_5), .C((A[2] & B[5])), .YS(S_2_5), .YC(C_2_5));
FAX1 U455 (.A(S_1_7), .B(C_1_6), .C((A[2] & B[6])), .YS(S_2_6), .YC(C_2_6));
HAX1 U456 (.A(C_1_7), .B(~(A[2] & B[7])), .YS(S_2_7), .YC(C_2_7));
HAX1 U457 (.A(S_2_1), .B((A[3] & B[0])), .YS(S_3_0), .YC(C_3_0));
FAX1 U458 (.A(S_2_2), .B(C_2_1), .C((A[3] & B[1])), .YS(S_3_1), .YC(C_3_1));
FAX1 U459 (.A(S_2_3), .B(C_2_2), .C((A[3] & B[2])), .YS(S_3_2), .YC(C_3_2));
FAX1 U460 (.A(S_2_4), .B(C_2_3), .C((A[3] & B[3])), .YS(S_3_3), .YC(C_3_3));
FAX1 U461 (.A(S_2_5), .B(C_2_4), .C((A[3] & B[4])), .YS(S_3_4), .YC(C_3_4));
FAX1 U462 (.A(S_2_6), .B(C_2_5), .C((A[3] & B[5])), .YS(S_3_5), .YC(C_3_5));
FAX1 U463 (.A(S_2_7), .B(C_2_6), .C((A[3] & B[6])), .YS(S_3_6), .YC(C_3_6));
HAX1 U464 (.A(C_2_7), .B(~(A[3] & B[7])), .YS(S_3_7), .YC(C_3_7));
FAX1 U465 (.A(S_3_1), .B(C_3_0), .C((A[4] & B[0])), .YS(S_4_0), .YC(C_4_0));
FAX1 U466 (.A(S_3_2), .B(C_3_1), .C((A[4] & B[1])), .YS(S_4_1), .YC(C_4_1));
FAX1 U467 (.A(S_3_3), .B(C_3_2), .C((A[4] & B[2])), .YS(S_4_2), .YC(C_4_2));
FAX1 U468 (.A(S_3_4), .B(C_3_3), .C((A[4] & B[3])), .YS(S_4_3), .YC(C_4_3));
FAX1 U469 (.A(S_3_5), .B(C_3_4), .C((A[4] & B[4])), .YS(S_4_4), .YC(C_4_4));
FAX1 U470 (.A(S_3_6), .B(C_3_5), .C((A[4] & B[5])), .YS(S_4_5), .YC(C_4_5));
FAX1 U471 (.A(S_3_7), .B(C_3_6), .C((A[4] & B[6])), .YS(S_4_6), .YC(C_4_6));
HAX1 U472 (.A(C_3_7), .B(~(A[4] & B[7])), .YS(S_4_7), .YC(C_4_7));
FAX1 U473 (.A(S_4_1), .B(C_4_0), .C((A[5] & B[0])), .YS(S_5_0), .YC(C_5_0));
FAX1 U474 (.A(S_4_2), .B(C_4_1), .C((A[5] & B[1])), .YS(S_5_1), .YC(C_5_1));
FAX1 U475 (.A(S_4_3), .B(C_4_2), .C((A[5] & B[2])), .YS(S_5_2), .YC(C_5_2));
FAX1 U476 (.A(S_4_4), .B(C_4_3), .C((A[5] & B[3])), .YS(S_5_3), .YC(C_5_3));
FAX1 U477 (.A(S_4_5), .B(C_4_4), .C((A[5] & B[4])), .YS(S_5_4), .YC(C_5_4));
FAX1 U478 (.A(S_4_6), .B(C_4_5), .C((A[5] & B[5])), .YS(S_5_5), .YC(C_5_5));
FAX1 U479 (.A(S_4_7), .B(C_4_6), .C((A[5] & B[6])), .YS(S_5_6), .YC(C_5_6));
HAX1 U480 (.A(C_4_7), .B(~(A[5] & B[7])), .YS(S_5_7), .YC(C_5_7));
FAX1 U481 (.A(S_5_1), .B(C_5_0), .C((A[6] & B[0])), .YS(S_6_0), .YC(C_6_0));
FAX1 U482 (.A(S_5_2), .B(C_5_1), .C((A[6] & B[1])), .YS(S_6_1), .YC(C_6_1));
FAX1 U483 (.A(S_5_3), .B(C_5_2), .C((A[6] & B[2])), .YS(S_6_2), .YC(C_6_2));
FAX1 U484 (.A(S_5_4), .B(C_5_3), .C((A[6] & B[3])), .YS(S_6_3), .YC(C_6_3));
FAX1 U485 (.A(S_5_5), .B(C_5_4), .C((A[6] & B[4])), .YS(S_6_4), .YC(C_6_4));
FAX1 U486 (.A(S_5_6), .B(C_5_5), .C((A[6] & B[5])), .YS(S_6_5), .YC(C_6_5));
FAX1 U487 (.A(S_5_7), .B(C_5_6), .C((A[6] & B[6])), .YS(S_6_6), .YC(C_6_6));
HAX1 U488 (.A(C_5_7), .B(~(A[6] & B[7])), .YS(S_6_7), .YC(C_6_7));
FAX1 U489 (.A(S_6_1), .B(C_6_0), .C(~(A[7] & B[0])), .YS(S_7_0), .YC(C_7_0));
FAX1 U490 (.A(S_6_2), .B(C_6_1), .C(~(A[7] & B[1])), .YS(S_7_1), .YC(C_7_1));
FAX1 U491 (.A(S_6_3), .B(C_6_2), .C(~(A[7] & B[2])), .YS(S_7_2), .YC(C_7_2));
FAX1 U492 (.A(S_6_4), .B(C_6_3), .C(~(A[7] & B[3])), .YS(S_7_3), .YC(C_7_3));
FAX1 U493 (.A(S_6_5), .B(C_6_4), .C(~(A[7] & B[4])), .YS(S_7_4), .YC(C_7_4));
FAX1 U494 (.A(S_6_6), .B(C_6_5), .C(~(A[7] & B[5])), .YS(S_7_5), .YC(C_7_5));
FAX1 U495 (.A(S_6_7), .B(C_6_6), .C(~(A[7] & B[6])), .YS(S_7_6), .YC(C_7_6));
HAX1 U496 (.A(C_6_7), .B((A[7] & B[7])), .YS(S_7_7), .YC(C_7_7));
HAX1 U497 (.A(S_7_1), .B(C_7_0), .YS(S_8_0), .YC(C_8_0));
FAX1 U498 (.A(S_7_2), .B(C_8_0), .C(C_7_1), .YS(S_8_1), .YC(C_8_1));
FAX1 U499 (.A(S_7_3), .B(C_8_1), .C(C_7_2), .YS(S_8_2), .YC(C_8_2));
FAX1 U500 (.A(S_7_4), .B(C_8_2), .C(C_7_3), .YS(S_8_3), .YC(C_8_3));
FAX1 U501 (.A(S_7_5), .B(C_8_3), .C(C_7_4), .YS(S_8_4), .YC(C_8_4));
FAX1 U502 (.A(S_7_6), .B(C_8_4), .C(C_7_5), .YS(S_8_5), .YC(C_8_5));
FAX1 U503 (.A(S_7_7), .B(C_8_5), .C(C_7_6), .YS(S_8_6), .YC(C_8_6));
FAX1 U504 (.A(1'b1), .B(C_8_6), .C(C_7_7), .YS(S_8_7), .YC(C_8_7));
assign O = {S_8_7,S_8_6,S_8_5,S_8_4,S_8_3,S_8_2,S_8_1,S_8_0,S_7_0,S_6_0,S_5_0,S_4_0,S_3_0,1'b0,1'b0,1'b0};
endmodule