module xor_gate(input a, input b, output out); assign out = a ^ b; endmodule module and_gate(input a, input b, output out); assign out = a & b; endmodule module or_gate(input a, input b, output out); assign out = a | b; endmodule module not_gate(input a, output out); assign out = ~a; endmodule module ha(input [0:0] a, input [0:0] b, output [0:0] ha_xor0, output [0:0] ha_and0); xor_gate xor_gate_ha_xor0(.a(a[0]), .b(b[0]), .out(ha_xor0)); and_gate and_gate_ha_and0(.a(a[0]), .b(b[0]), .out(ha_and0)); endmodule module fa(input [0:0] a, input [0:0] b, input [0:0] cin, output [0:0] fa_xor1, output [0:0] fa_or0); wire [0:0] fa_xor0; wire [0:0] fa_and0; wire [0:0] fa_and1; xor_gate xor_gate_fa_xor0(.a(a[0]), .b(b[0]), .out(fa_xor0)); and_gate and_gate_fa_and0(.a(a[0]), .b(b[0]), .out(fa_and0)); xor_gate xor_gate_fa_xor1(.a(fa_xor0[0]), .b(cin[0]), .out(fa_xor1)); and_gate and_gate_fa_and1(.a(fa_xor0[0]), .b(cin[0]), .out(fa_and1)); or_gate or_gate_fa_or0(.a(fa_and0[0]), .b(fa_and1[0]), .out(fa_or0)); endmodule module mux2to1(input [0:0] d0, input [0:0] d1, input [0:0] sel, output [0:0] mux2to1_xor0); wire [0:0] mux2to1_and0; wire [0:0] mux2to1_not0; wire [0:0] mux2to1_and1; and_gate and_gate_mux2to1_and0(.a(d1[0]), .b(sel[0]), .out(mux2to1_and0)); not_gate not_gate_mux2to1_not0(.a(sel[0]), .out(mux2to1_not0)); and_gate and_gate_mux2to1_and1(.a(d0[0]), .b(mux2to1_not0[0]), .out(mux2to1_and1)); xor_gate xor_gate_mux2to1_xor0(.a(mux2to1_and0[0]), .b(mux2to1_and1[0]), .out(mux2to1_xor0)); endmodule module s_cska16(input [15:0] a, input [15:0] b, output [16:0] s_cska16_out); wire [0:0] s_cska16_xor0; wire [0:0] s_cska16_ha0_xor0; wire [0:0] s_cska16_ha0_and0; wire [0:0] s_cska16_xor1; wire [0:0] s_cska16_fa0_xor1; wire [0:0] s_cska16_fa0_or0; wire [0:0] s_cska16_xor2; wire [0:0] s_cska16_fa1_xor1; wire [0:0] s_cska16_fa1_or0; wire [0:0] s_cska16_xor3; wire [0:0] s_cska16_fa2_xor1; wire [0:0] s_cska16_fa2_or0; wire [0:0] s_cska16_and_propagate00; wire [0:0] s_cska16_and_propagate01; wire [0:0] s_cska16_and_propagate02; wire [0:0] s_cska16_mux2to10_and1; wire [0:0] s_cska16_xor4; wire [0:0] s_cska16_fa3_xor1; wire [0:0] s_cska16_fa3_or0; wire [0:0] s_cska16_xor5; wire [0:0] s_cska16_fa4_xor1; wire [0:0] s_cska16_fa4_or0; wire [0:0] s_cska16_xor6; wire [0:0] s_cska16_fa5_xor1; wire [0:0] s_cska16_fa5_or0; wire [0:0] s_cska16_xor7; wire [0:0] s_cska16_fa6_xor1; wire [0:0] s_cska16_fa6_or0; wire [0:0] s_cska16_and_propagate13; wire [0:0] s_cska16_and_propagate14; wire [0:0] s_cska16_and_propagate15; wire [0:0] s_cska16_mux2to11_xor0; wire [0:0] s_cska16_xor8; wire [0:0] s_cska16_fa7_xor1; wire [0:0] s_cska16_fa7_or0; wire [0:0] s_cska16_xor9; wire [0:0] s_cska16_fa8_xor1; wire [0:0] s_cska16_fa8_or0; wire [0:0] s_cska16_xor10; wire [0:0] s_cska16_fa9_xor1; wire [0:0] s_cska16_fa9_or0; wire [0:0] s_cska16_xor11; wire [0:0] s_cska16_fa10_xor1; wire [0:0] s_cska16_fa10_or0; wire [0:0] s_cska16_and_propagate26; wire [0:0] s_cska16_and_propagate27; wire [0:0] s_cska16_and_propagate28; wire [0:0] s_cska16_mux2to12_xor0; wire [0:0] s_cska16_xor12; wire [0:0] s_cska16_fa11_xor1; wire [0:0] s_cska16_fa11_or0; wire [0:0] s_cska16_xor13; wire [0:0] s_cska16_fa12_xor1; wire [0:0] s_cska16_fa12_or0; wire [0:0] s_cska16_xor14; wire [0:0] s_cska16_fa13_xor1; wire [0:0] s_cska16_fa13_or0; wire [0:0] s_cska16_xor15; wire [0:0] s_cska16_fa14_xor1; wire [0:0] s_cska16_fa14_or0; wire [0:0] s_cska16_and_propagate39; wire [0:0] s_cska16_and_propagate310; wire [0:0] s_cska16_and_propagate311; wire [0:0] s_cska16_mux2to13_xor0; wire [0:0] s_cska16_xor16; wire [0:0] s_cska16_xor17; xor_gate xor_gate_s_cska16_xor0(.a(a[0]), .b(b[0]), .out(s_cska16_xor0)); ha ha_s_cska16_ha0_out(.a(a[0]), .b(b[0]), .ha_xor0(s_cska16_ha0_xor0), .ha_and0(s_cska16_ha0_and0)); xor_gate xor_gate_s_cska16_xor1(.a(a[1]), .b(b[1]), .out(s_cska16_xor1)); fa fa_s_cska16_fa0_out(.a(a[1]), .b(b[1]), .cin(s_cska16_ha0_and0[0]), .fa_xor1(s_cska16_fa0_xor1), .fa_or0(s_cska16_fa0_or0)); xor_gate xor_gate_s_cska16_xor2(.a(a[2]), .b(b[2]), .out(s_cska16_xor2)); fa fa_s_cska16_fa1_out(.a(a[2]), .b(b[2]), .cin(s_cska16_fa0_or0[0]), .fa_xor1(s_cska16_fa1_xor1), .fa_or0(s_cska16_fa1_or0)); xor_gate xor_gate_s_cska16_xor3(.a(a[3]), .b(b[3]), .out(s_cska16_xor3)); fa fa_s_cska16_fa2_out(.a(a[3]), .b(b[3]), .cin(s_cska16_fa1_or0[0]), .fa_xor1(s_cska16_fa2_xor1), .fa_or0(s_cska16_fa2_or0)); and_gate and_gate_s_cska16_and_propagate00(.a(s_cska16_xor0[0]), .b(s_cska16_xor2[0]), .out(s_cska16_and_propagate00)); and_gate and_gate_s_cska16_and_propagate01(.a(s_cska16_xor1[0]), .b(s_cska16_xor3[0]), .out(s_cska16_and_propagate01)); and_gate and_gate_s_cska16_and_propagate02(.a(s_cska16_and_propagate00[0]), .b(s_cska16_and_propagate01[0]), .out(s_cska16_and_propagate02)); mux2to1 mux2to1_s_cska16_mux2to10_out(.d0(s_cska16_fa2_or0[0]), .d1(1'b0), .sel(s_cska16_and_propagate02[0]), .mux2to1_xor0(s_cska16_mux2to10_and1)); xor_gate xor_gate_s_cska16_xor4(.a(a[4]), .b(b[4]), .out(s_cska16_xor4)); fa fa_s_cska16_fa3_out(.a(a[4]), .b(b[4]), .cin(s_cska16_mux2to10_and1[0]), .fa_xor1(s_cska16_fa3_xor1), .fa_or0(s_cska16_fa3_or0)); xor_gate xor_gate_s_cska16_xor5(.a(a[5]), .b(b[5]), .out(s_cska16_xor5)); fa fa_s_cska16_fa4_out(.a(a[5]), .b(b[5]), .cin(s_cska16_fa3_or0[0]), .fa_xor1(s_cska16_fa4_xor1), .fa_or0(s_cska16_fa4_or0)); xor_gate xor_gate_s_cska16_xor6(.a(a[6]), .b(b[6]), .out(s_cska16_xor6)); fa fa_s_cska16_fa5_out(.a(a[6]), .b(b[6]), .cin(s_cska16_fa4_or0[0]), .fa_xor1(s_cska16_fa5_xor1), .fa_or0(s_cska16_fa5_or0)); xor_gate xor_gate_s_cska16_xor7(.a(a[7]), .b(b[7]), .out(s_cska16_xor7)); fa fa_s_cska16_fa6_out(.a(a[7]), .b(b[7]), .cin(s_cska16_fa5_or0[0]), .fa_xor1(s_cska16_fa6_xor1), .fa_or0(s_cska16_fa6_or0)); and_gate and_gate_s_cska16_and_propagate13(.a(s_cska16_xor4[0]), .b(s_cska16_xor6[0]), .out(s_cska16_and_propagate13)); and_gate and_gate_s_cska16_and_propagate14(.a(s_cska16_xor5[0]), .b(s_cska16_xor7[0]), .out(s_cska16_and_propagate14)); and_gate and_gate_s_cska16_and_propagate15(.a(s_cska16_and_propagate13[0]), .b(s_cska16_and_propagate14[0]), .out(s_cska16_and_propagate15)); mux2to1 mux2to1_s_cska16_mux2to11_out(.d0(s_cska16_fa6_or0[0]), .d1(s_cska16_mux2to10_and1[0]), .sel(s_cska16_and_propagate15[0]), .mux2to1_xor0(s_cska16_mux2to11_xor0)); xor_gate xor_gate_s_cska16_xor8(.a(a[8]), .b(b[8]), .out(s_cska16_xor8)); fa fa_s_cska16_fa7_out(.a(a[8]), .b(b[8]), .cin(s_cska16_mux2to11_xor0[0]), .fa_xor1(s_cska16_fa7_xor1), .fa_or0(s_cska16_fa7_or0)); xor_gate xor_gate_s_cska16_xor9(.a(a[9]), .b(b[9]), .out(s_cska16_xor9)); fa fa_s_cska16_fa8_out(.a(a[9]), .b(b[9]), .cin(s_cska16_fa7_or0[0]), .fa_xor1(s_cska16_fa8_xor1), .fa_or0(s_cska16_fa8_or0)); xor_gate xor_gate_s_cska16_xor10(.a(a[10]), .b(b[10]), .out(s_cska16_xor10)); fa fa_s_cska16_fa9_out(.a(a[10]), .b(b[10]), .cin(s_cska16_fa8_or0[0]), .fa_xor1(s_cska16_fa9_xor1), .fa_or0(s_cska16_fa9_or0)); xor_gate xor_gate_s_cska16_xor11(.a(a[11]), .b(b[11]), .out(s_cska16_xor11)); fa fa_s_cska16_fa10_out(.a(a[11]), .b(b[11]), .cin(s_cska16_fa9_or0[0]), .fa_xor1(s_cska16_fa10_xor1), .fa_or0(s_cska16_fa10_or0)); and_gate and_gate_s_cska16_and_propagate26(.a(s_cska16_xor8[0]), .b(s_cska16_xor10[0]), .out(s_cska16_and_propagate26)); and_gate and_gate_s_cska16_and_propagate27(.a(s_cska16_xor9[0]), .b(s_cska16_xor11[0]), .out(s_cska16_and_propagate27)); and_gate and_gate_s_cska16_and_propagate28(.a(s_cska16_and_propagate26[0]), .b(s_cska16_and_propagate27[0]), .out(s_cska16_and_propagate28)); mux2to1 mux2to1_s_cska16_mux2to12_out(.d0(s_cska16_fa10_or0[0]), .d1(s_cska16_mux2to11_xor0[0]), .sel(s_cska16_and_propagate28[0]), .mux2to1_xor0(s_cska16_mux2to12_xor0)); xor_gate xor_gate_s_cska16_xor12(.a(a[12]), .b(b[12]), .out(s_cska16_xor12)); fa fa_s_cska16_fa11_out(.a(a[12]), .b(b[12]), .cin(s_cska16_mux2to12_xor0[0]), .fa_xor1(s_cska16_fa11_xor1), .fa_or0(s_cska16_fa11_or0)); xor_gate xor_gate_s_cska16_xor13(.a(a[13]), .b(b[13]), .out(s_cska16_xor13)); fa fa_s_cska16_fa12_out(.a(a[13]), .b(b[13]), .cin(s_cska16_fa11_or0[0]), .fa_xor1(s_cska16_fa12_xor1), .fa_or0(s_cska16_fa12_or0)); xor_gate xor_gate_s_cska16_xor14(.a(a[14]), .b(b[14]), .out(s_cska16_xor14)); fa fa_s_cska16_fa13_out(.a(a[14]), .b(b[14]), .cin(s_cska16_fa12_or0[0]), .fa_xor1(s_cska16_fa13_xor1), .fa_or0(s_cska16_fa13_or0)); xor_gate xor_gate_s_cska16_xor15(.a(a[15]), .b(b[15]), .out(s_cska16_xor15)); fa fa_s_cska16_fa14_out(.a(a[15]), .b(b[15]), .cin(s_cska16_fa13_or0[0]), .fa_xor1(s_cska16_fa14_xor1), .fa_or0(s_cska16_fa14_or0)); and_gate and_gate_s_cska16_and_propagate39(.a(s_cska16_xor12[0]), .b(s_cska16_xor14[0]), .out(s_cska16_and_propagate39)); and_gate and_gate_s_cska16_and_propagate310(.a(s_cska16_xor13[0]), .b(s_cska16_xor15[0]), .out(s_cska16_and_propagate310)); and_gate and_gate_s_cska16_and_propagate311(.a(s_cska16_and_propagate39[0]), .b(s_cska16_and_propagate310[0]), .out(s_cska16_and_propagate311)); mux2to1 mux2to1_s_cska16_mux2to13_out(.d0(s_cska16_fa14_or0[0]), .d1(s_cska16_mux2to12_xor0[0]), .sel(s_cska16_and_propagate311[0]), .mux2to1_xor0(s_cska16_mux2to13_xor0)); xor_gate xor_gate_s_cska16_xor16(.a(a[15]), .b(b[15]), .out(s_cska16_xor16)); xor_gate xor_gate_s_cska16_xor17(.a(s_cska16_xor16[0]), .b(s_cska16_mux2to13_xor0[0]), .out(s_cska16_xor17)); assign s_cska16_out[0] = s_cska16_ha0_xor0[0]; assign s_cska16_out[1] = s_cska16_fa0_xor1[0]; assign s_cska16_out[2] = s_cska16_fa1_xor1[0]; assign s_cska16_out[3] = s_cska16_fa2_xor1[0]; assign s_cska16_out[4] = s_cska16_fa3_xor1[0]; assign s_cska16_out[5] = s_cska16_fa4_xor1[0]; assign s_cska16_out[6] = s_cska16_fa5_xor1[0]; assign s_cska16_out[7] = s_cska16_fa6_xor1[0]; assign s_cska16_out[8] = s_cska16_fa7_xor1[0]; assign s_cska16_out[9] = s_cska16_fa8_xor1[0]; assign s_cska16_out[10] = s_cska16_fa9_xor1[0]; assign s_cska16_out[11] = s_cska16_fa10_xor1[0]; assign s_cska16_out[12] = s_cska16_fa11_xor1[0]; assign s_cska16_out[13] = s_cska16_fa12_xor1[0]; assign s_cska16_out[14] = s_cska16_fa13_xor1[0]; assign s_cska16_out[15] = s_cska16_fa14_xor1[0]; assign s_cska16_out[16] = s_cska16_xor17[0]; endmodule