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module grayCell ( input wire Gin_i2k, input wire Pin_i2k, input wire Gin_kd2j, output wire Gout_i2j ); //assign Gout_i2j = Gin_i2k + (Pin_i2k*Gin_kd2j); sky130_fd_sc_hd__a21o_1 uA21O ( .A1(Pin_i2k), .A2(Gin_kd2j), .B1(Gin_i2k), .X (Gout_i2j) ); endmodule
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module carryRipple_pgk #( parameter N = 16 ) ( input wire Cin, input wire [N-1:0] A, input wire [N-1:0] B, output wire [N-1:0] Sout, output wire Cout ); wire [ N:0] G_n2z; // Group Generate i:j or n:0 wire [N-1:0] P_n; wire [N-1:0] G_n; assign Cout = G_n2z[N]; // Ci = Gi:0 assign G...
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module fa ( in1, in2, cin, sum, cout ); input in1, in2, cin; output sum, cout; assign sum = in1 ^ in2 ^ cin; assign cout = (in1 & in2) | (in2 & cin) | (in1 & cin); endmodule
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module CSaveA #( parameter N = 32 ) ( input [N-1:0] in1, input [N-1:0] in2, output [N-1:0] sum, output cout, output of ); wire [N-1:0] s, c1, c2; genvar i; generate for (i = 0; i < N; i = i + 1) begin fa Full_Adder ( .in1 (in1[i]), .in2 (in2[i]), ....
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module fulladder ( a, b, cin, sum, carry ); input a; input b; input cin; output sum; output carry; assign sum = a ^ b ^ cin; assign carry = (a & b) | (cin & b) | (a & cin); endmodule
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module multiplexer2 ( i0, i1, sel, bitout ); input i0; input i1; input sel; output reg bitout; always @(i0, i1, sel) begin if (sel == 0) bitout = i0; else bitout = i1; end endmodule
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module adder1 ( s, co, a, b, ci ); output s, co; input a, b, ci; wire o0, o1, o2; xor (s, a, b, ci); or (o0, a, b); or (o1, b, ci); or (o2, ci, a); and (co, o0, o1, o2); endmodule
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module mux2 ( out, sel, a, b ); input a, b, sel; output out; tri out; bufif1 (out, a, sel); bufif0 (out, b, sel); endmodule
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module carryselect32 ( s, co, a, b, ci, c_0, c_1 ); output [31:0] s; output co; input [31:0] a, b; input ci, c_0, c_1; wire [23:0] s_0, s_1; wire c16_0, c16_1, c24_0, c24_1, c32_0, c32_1; wire c8, c16, c24; wire w16, w24, w32; carryripple8 cr0 ( s[7:0], c8, ...
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module adder1 ( s, co, a, b, ci ); output s, co; input a, b, ci; wire o0, o1, o2; xor (s, a, b, ci); or (o0, a, b); or (o1, b, ci); or (o2, ci, a); and (co, o0, o1, o2); endmodule
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module adder2 ( s, co, a, b, ci ); output [1:0] s; output co; input [1:0] a, b; input ci; wire w1; adder1 a0 ( s[0], w1, a[0], b[0], ci ); adder1 a1 ( s[1], co, a[1], b[1], w1 ); endmodule
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module mux2 ( out, sel, a, b ); input a, b, sel; output out; tri out; bufif1 (out, a, sel); bufif0 (out, b, sel); endmodule
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module carryselect4 ( s, co, a, b, ci, c_0, c_1 ); //reg c_0=0; //reg c_1=1; output [3:0] s; output co; input [3:0] a, b; input ci, c_0, c_1; wire c2, w1, w2, w3; wire [1:0] s_0, s_1; adder2 a0 ( s[1:0], c2, a[1:0], b[1:0], ci ); adder2 a1...
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module carryselect8 ( s, co, a, b, ci, c_0, c_1 ); output [7:0] s; output co; input [7:0] a, b; input ci, c_0, c_1; wire c4; carryselect4 cs0 ( s[3:0], c4, a[3:0], b[3:0], ci, c_0, c_1 ); carryselect4 cs1 ( s[7:4], co, ...
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module carry_select_adder ( input [3:0] A, B, input cin, output [3:0] S, output cout ); wire [3:0] temp0, temp1, carry0, carry1; //for carry 0 fulladder fa00 ( A[0], B[0], 1'b0, temp0[0], carry0[0] ); fulladder fa01 ( A[1], B[1], carry0[0], ...
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module fulladder ( input a, b, cin, output sum, carry ); assign sum = a ^ b ^ cin; assign carry = (a & b) | (cin & b) | (a & cin); endmodule
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module multiplexer2 ( input i0, i1, sel, output reg bitout ); always @(i0, i1, sel) begin if (sel == 0) bitout = i0; else bitout = i1; end endmodule
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module carryselect_tb; reg cin; reg [31:0] a; reg [31:0] b; wire [31:0] sum; wire cout; carryselect_32_bit uut ( .a(a), .b(b), .sum(sum), .cin(cin), .cout(cout) ); initial begin $display($time, " << Starting the Simulation >>"); a = 0; b = 0; cin = 0...
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module blackCell ( input wire Gin_i2k, input wire Pin_i2k, input wire Gin_kd2j, input wire Pin_kd2j, output wire Gout_i2j, output wire Pout_i2j ); assign Gout_i2j = Gin_i2k + (Pin_i2k * Gin_kd2j); assign Pout_i2j = Pin_i2k * Pin_kd2j; endmodule
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module grayCell ( input wire Gin_i2k, input wire Pin_i2k, input wire Gin_kd2j, output wire Gout_i2j ); //assign Gout_i2j = Gin_i2k + (Pin_i2k*Gin_kd2j); sky130_fd_sc_hd__a21o_1 uA21O ( .A1(Pin_i2k), .A2(Gin_kd2j), .B1(Gin_i2k), .X (Gout_i2j) ); endmodule
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module pg_box #( parameter N = 4 ) ( input wire Cin, input wire [N-1:0] A, input wire [N-1:0] B, output wire [N-1:0] G_n2j, output wire [N-1:0] P_n, output wire [N-1:0] G_n, output wire P_i2j ); assign G_n2j[0] = Cin; // G0:0=Cin sky130_fd_sc_hd__and4_1 u_AND4 ( .A(P_n[0]), ...
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module csa_unit #( parameter N = 4 ) ( input wire Cin, input wire [N-1:0] A, input wire [N-1:0] B, output wire [N-1:0] Sout, output wire Cout ); wire P_i2j; // add to control carry mux wire G_3to0; wire [N-1:0] G_n2j; wire [N-1:0] P_n; wire [N-1:0] G_n; //Carry skip magic sky130_...
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module carrySkip #( parameter N = 16 ) ( input wire Cin, input wire [N-1:0] A, input wire [N-1:0] B, output wire [N-1:0] Sout, output wire Cout ); wire [N/4+1:0] carries; assign carries[0] = Cin; assign Cout = carries[N/4]; // Compute Sum genvar i; generate for (i = 1; i <= N / 4...
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module adder1 ( s, co, a, b, ci ); output s, co; input a, b, ci; wire o0, o1, o2; xor (s, a, b, ci); or (o0, a, b); or (o1, b, ci); or (o2, ci, a); and (co, o0, o1, o2); endmodule
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module mux2 ( out, sel, a, b ); input a, b, sel; output out; tri out; bufif1 (out, a, sel); bufif0 (out, b, sel); endmodule
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module carryskip4 ( s, co, a, b, ci ); wire [3:0] p; output [3:0] s; output co; input [3:0] a; input [3:0] b; input ci; wire p3_0, w1, w2, w3, w4; xor (p[0], a[0], b[0]); xor (p[1], a[1], b[1]); xor (p[2], a[2], b[2]); xor (p[3], a[3], b[3]); and (p3_0, p); adder1 a0 ( ...
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module carry_skip_4bit ( a, b, cin, sum, cout ); input [3:0] a, b; input cin; output [3:0] sum; output cout; wire [3:0] p; wire c0; wire bp; ripple_carry_4_bit rca1 ( .a(a[3:0]), .b(b[3:0]), .cin(cin), .sum(sum[3:0]), .cout(c0) ); generate_p p1 ( ...
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module generate_p ( a, b, p, bp ); input [3:0] a, b; output [3:0] p; output bp; assign p = a ^ b; //get all propagate bits assign bp = &p; // and p0p1p2p3 bits endmodule
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module ripple_carry_4_bit ( a, b, cin, sum, cout ); input [3:0] a, b; input cin; wire c1, c2, c3; output [3:0] sum; output cout; full_adder fa0 ( .a(a[0]), .b(b[0]), .cin(cin), .sum(sum[0]), .cout(c1) ); full_adder fa1 ( .a(a[1]), .b(b[1]), ...
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module half_adder ( a, b, sum, cout ); input a, b; output sum, cout; xor xor_1 (sum, a, b); and and_1 (cout, a, b); endmodule
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module mux2X1 ( in0, in1, sel, out ); input in0, in1; input sel; output out; assign out = (sel) ? in1 : in0; endmodule
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module carryskip_tb; reg cin; reg [31:0] a; reg [31:0] b; wire [31:0] sum; wire cout; carryskip32_bit uut1 ( .a(a), .b(b), .sum(sum), .cin(cin), .cout(cout) ); initial begin $display($time, " << Starting the Simulation >>"); a = 0; b = 0; cin = 0; ...
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module carryUnit4Bits ( input wire [3:0] p, input wire [3:0] g, input wire c0, output wire [3:0] c ); wire [9:0] z; //Ecuaciones para obtener acarreo1 //c1 = G0 + P0c0 and (z[0], p[0], c0); or (c[0], g[0], z[0]); //Ecuaciones para obtener acarreo2 //c2 = G1 + P1G0 + P1P0c0 and (z[1], p...
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module carry_adder ( output [3:0] sum, output cout, input [3:0] a, input [3:0] b, input cin ); wire in [3:0]; wire out[3:0]; fulladd u0 ( out[0], sum[0], a[0], b[0], in[0] ), u1 ( out[1], sum[1], ...
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module carry_and #( parameter C_FAMILY = "virtex6" // FPGA Family. Current version: virtex6 or spartan6. ) ( input wire CIN, input wire S, output wire COUT ); ///////////////////////////////////////////////////////////////////////////// // Variables for generating parameter controlled instan...
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module carry_and_speed_test ( dat_i, out, clk ); parameter WIDTH = 16; parameter METHOD = 4; input clk; input [WIDTH-1:0] dat_i; output out; reg [WIDTH-1:0] dat_r; reg out; wire out_c; carry_and ca ( .dat(dat_r), .out(out_c) ); defparam ca.WIDTH = WIDTH; defparam ca.METH...
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module pg ( a, b, p, g ); input [3:0] a, b; output [3:0] p, g; assign p[0] = a[0] ^ b[0]; assign p[1] = a[1] ^ b[1]; assign p[2] = a[2] ^ b[2]; assign p[3] = a[3] ^ b[3]; assign g[0] = a[0] & b[0]; assign g[1] = a[1] & b[1]; assign g[2] = a[2] & b[2]; assign g[3] = a[3] & b[3]; en...
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module mux ( p, c, c1, cout ); input [3:0] p; input c, c1; output cout; assign cout = (p == 4'b1111) ? c : c1; endmodule
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module CPA #( parameter N = 32 ) ( a, b, sum, cout, overflow ); input [N-1:0] a, b; output cout, overflow; output [N-1:0] sum; wire [N/8-1:0] of; wire [N/8-1:0] couts; wire [N/8-2:0] temp; RCA1 rc0 ( a[7:0], b[7:0], 1'b0, couts[0], sum[7:0], of...
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module RCA1 #( parameter N = 8 ) ( in1, in2, cin, cout, sum, overflow ); input cin; input [N-1:0] in1, in2; output cout, overflow; output [N-1:0] sum; wire [N:0] C; assign C[0] = cin; assign cout = C[N]; genvar i; generate for (i = 0; i < N; i = i + 1) begin fa ...
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module fa ( in1, in2, cin, sum, cout ); input in1, in2, cin; output sum, cout; assign sum = in1 ^ in2 ^ cin; assign cout = (in1 & in2) | (in2 & cin) | (in1 & cin); endmodule
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module byPassLogic #( parameter N = 8 ) ( a, b, cin, cout, out ); input [N-1:0] a, b; input cin, cout; output out; wire [N-1:0] p; wire finalP; genvar i; for (i = 0; i < N; i = i + 1) begin assign p[i] = a[i] ^ b[i]; end assign finalP = &p; mux21 byPassMux ( cout...
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module mux21 ( in1, in2, selector, out ); input in1, in2, selector; output out; assign out = selector ? in2 : in1; endmodule
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module carry_bypass_adder_base ( input [`BLOCK_LEN-1:0] a , input [`BLOCK_LEN-1:0] b , input cin , output reg [`BLOCK_LEN-1:0] sum , output reg cout ); reg [`BLOCK_LEN-1:0] propagate; reg [`BLOCK_LEN-1:0] gen; reg [`BLOCK_LEN-1:0] cout_p; integer i; always @(*) begin for (i = 0; i <= ...
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module carry_bypass_adder_base_tb; `include "carry_bypass_adder_defines.v" reg [`BLOCK_LEN-1:0] a; reg [`BLOCK_LEN-1:0] b; reg c; wire [`BLOCK_LEN-1:0] sum; wire cout; reg clk; carry_bypass_adder_base adder_base1 ( a, b, c, sum, cout ); initial begin #0 clk = 0; ...
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module carry_bypass_adder_base_tb; `include "carry_bypass_adder_defines.v" reg [`INPUT_LEN-1:0] a; reg [`INPUT_LEN-1:0] b; reg c; wire [`INPUT_LEN-1:0] sum; wire cout; reg clk; carry_bypass_adder adder ( a, b, c, sum, cout ); initial begin #0 clk = 0; a = 0; ...
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module carry_increment_adder #( parameter N = 32 ) ( in1, in2, sum, cout, of //overflow flag ); input [N-1:0] in1, in2; output [N-1:0] sum; output cout, of; wire [7:0] adders_cout; // cout of the first ripple carry adder ripple_carry_adder_4_bit rca ( .in1 (in1[3:0]), ...
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module Carry_inc_adder #( parameter WIDTH = 16, VALENCY = 2, GROUP = 4 ) ( input [WIDTH:1] A, input [WIDTH:1] B, input Cin, output [WIDTH:1] S ); wire [WIDTH:0] G, P, Gi; Bitwise_PG #(WIDTH) bit_PG ( A, B, Cin, G, P ); Carry_inc_grp_PG #(WIDTH, VALENCY...
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module Carry_inc_grp_PG #( parameter WIDTH = 16, VALENCY = 2, GROUP = 4 ) ( input [WIDTH:0] G, input [WIDTH:0] P, output [WIDTH:0] Gi ); wire [WIDTH-1:0] g, p; assign Gi[0] = G[0]; genvar i, j; generate for (i = 0; i < WIDTH; i = i + GROUP) begin : grp_PG if (i == 0) begin...
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module for carry look ahead adder module carry_lahead (output wire [3:0]sum, carry_ahead, input wire [3:0] a, b, input wire c_in ); assign carry_ahead[0]= ((a[0]&b[0]) | (c_in&(a[0]^b[0]))); assign carry_ahead[1]= ((a[1]&b[1]) | ((a[1]^b[1])&carry_ahead[0]))...
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module carry_latch_and #( parameter C_FAMILY = "virtex6" // FPGA Family. Current version: virtex6 or spartan6. ) ( input wire CIN, input wire I, output wire O ); ///////////////////////////////////////////////////////////////////////////// // Variables for generating parameter controlled ins...
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module carry_latch_or #( parameter C_FAMILY = "virtex6" // FPGA Family. Current version: virtex6 or spartan6. ) ( input wire CIN, input wire I, output wire O ); ///////////////////////////////////////////////////////////////////////////// // Variables for generating parameter controlled inst...
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module carry_look_ahead_16bit ( a, b, cin, sum, cout ); input [15:0] a, b; input cin; output [15:0] sum; output cout; wire c1, c2, c3; carry_look_ahead_4bit cla1 ( .a(a[3:0]), .b(b[3:0]), .cin(cin), .sum(sum[3:0]), .cout(c1) ); carry_look_ahead_4bit cla...
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module carry_look_ahead_4bit ( a, b, cin, sum, cout ); input [3:0] a, b; input cin; output [3:0] sum; output cout; wire [3:0] p, g, c; assign p = a ^ b; //propagate assign g = a & b; //generate assign c[0] = cin; assign c[1] = g[0] | (p[0] & c[0]); assign c[2] = g[1] | (p[1]...
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module test_carry_lookahead_adder_16; // Inputs reg [15:0] in1; reg [15:0] in2; reg cin; // Outputs wire [15:0] sum; wire cout; // Instantiate the Unit test (UUT) carry_lookahead_adder_16 uut ( .sum (sum), .cout(cout), .in1 (in1), .in2 (in2), .cin (cin) ); initial...
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module and2 ( output wire z, input wire x, input wire y ); assign z = x & y; endmodule
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module or2 ( output wire z, input wire x, input wire y ); assign z = x | y; endmodule
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module or3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w | x | y; endmodule
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module xor2 ( output wire z, input wire x, input wire y ); assign z = x ^ y; endmodule
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module and3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w & x & y; endmodule
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module and4 ( output wire z, input wire v, input wire w, input wire x, input wire y ); assign z = v & w & x & y; endmodule
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module xor3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w ^ x ^ y; endmodule
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module xor4 ( output wire z, input wire v, input wire w, input wire x, input wire y ); assign z = v ^ w ^ x ^ y; endmodule
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module xor6 ( output wire z, input wire t, input wire u, input wire v, input wire w, input wire x, input wire y ); assign z = t ^ u ^ v ^ w ^ x ^ y; endmodule
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module test_carry_lookahead_adder_3_2bits; // Inputs reg [1:0] in1; reg [1:0] in2; reg [1:0] in3; reg cin; // Outputs wire [1:0] sum; wire cout_1; wire cout_2; // Instantiate the Unit test (UUT) carry_lookahead_adder_3_2bits uut ( .sum(sum), .cout_1(cout_1), .cout_2(cout_2), ...
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module three_bits_P ( output P, input a, input b, input c ); assign P = a ^ b ^ c; endmodule
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module three_bits_G ( output G, input a, input b, input c ); assign G = (a & b) ^ (a & c) ^ (b & c); endmodule
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module three_bits_E ( output E, input a, input b, input c ); assign E = a & b & c; endmodule
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module four_bits_P ( output P, input a, input b, input c, input d ); assign P = a ^ b ^ c ^ d; endmodule
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module four_bits_G ( output G, input a, input b, input c, input d ); assign G = (a & b) ^ (a & c) ^ (a & d) ^ (b & c) ^ (b & d) ^ (c & d); endmodule
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module four_bits_F ( output F, input a, input b, input c, input d ); assign F = a & b & c & d; endmodule
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module four_bits_E ( output E, input a, input b, input c, input d ); assign E = (a & b & c) ^ (a & b & d) ^ (a & c & d) ^ (b & c & d) ^ (a & b & c & d); endmodule
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module and2 ( output wire z, input wire x, input wire y ); assign z = x & y; endmodule
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module or2 ( output wire z, input wire x, input wire y ); assign z = x | y; endmodule
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module xor2 ( output wire z, input wire x, input wire y ); assign z = x ^ y; endmodule
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module and3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w & x & y; endmodule
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module xor3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w ^ x ^ y; endmodule
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module xor4 ( output wire z, input wire v, input wire w, input wire x, input wire y ); assign z = v ^ w ^ x ^ y; endmodule
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module xor5 ( output wire z, input wire u, input wire v, input wire w, input wire x, input wire y ); assign z = u ^ v ^ w ^ x ^ y; endmodule
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module xor6 ( output wire z, input wire t, input wire u, input wire v, input wire w, input wire x, input wire y ); assign z = t ^ u ^ v ^ w ^ x ^ y; endmodule
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module test_carry_lookahead_adder_3_4bits; // Inputs reg [3:0] in1; reg [3:0] in2; reg [3:0] in3; reg cin; // Outputs wire [3:0] sum; wire cout_1; wire cout_2; // Instantiate the Unit test (UUT) carry_lookahead_adder_3_4bits uut ( .sum(sum), .cout_1(cout_1), .cout_2(cout_2), ...
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module three_bits_P ( output P, input a, input b, input c ); assign P = a ^ b ^ c; endmodule
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module three_bits_G ( output G, input a, input b, input c ); assign G = (a & b) ^ (a & c) ^ (b & c); endmodule
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module three_bits_E ( output E, input a, input b, input c ); assign E = a & b & c; endmodule
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module four_bits_P ( output P, input a, input b, input c, input d ); assign P = a ^ b ^ c ^ d; endmodule
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module four_bits_G ( output G, input a, input b, input c, input d ); assign G = (a & b) ^ (a & c) ^ (a & d) ^ (b & c) ^ (b & d) ^ (c & d); endmodule
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module four_bits_F ( output F, input a, input b, input c, input d ); assign F = a & b & c & d; endmodule
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module four_bits_E ( output E, input a, input b, input c, input d ); assign E = (a & b & c) ^ (a & b & d) ^ (a & c & d) ^ (b & c & d) ^ (a & b & c & d); endmodule
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module and2 ( output wire z, input wire x, input wire y ); assign z = x & y; endmodule
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module or2 ( output wire z, input wire x, input wire y ); assign z = x | y; endmodule
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module xor2 ( output wire z, input wire x, input wire y ); assign z = x ^ y; endmodule
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module and3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w & x & y; endmodule
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module xor3 ( output wire z, input wire w, input wire x, input wire y ); assign z = w ^ x ^ y; endmodule
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module xor4 ( output wire z, input wire v, input wire w, input wire x, input wire y ); assign z = v ^ w ^ x ^ y; endmodule
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module xor5 ( output wire z, input wire u, input wire v, input wire w, input wire x, input wire y ); assign z = u ^ v ^ w ^ x ^ y; endmodule
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module xor6 ( output wire z, input wire t, input wire u, input wire v, input wire w, input wire x, input wire y ); assign z = t ^ u ^ v ^ w ^ x ^ y; endmodule
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module test_carry_lookahead_adder_3_8bits; // Inputs reg [7:0] in1; reg [7:0] in2; reg [7:0] in3; reg cin; // Outputs wire [7:0] sum; wire cout_1; wire cout_2; // Instantiate the Unit test (UUT) carry_lookahead_adder_3_8bits uut ( .sum(sum), .cout_1(cout_1), .cout_2(cout_2), ...
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module_full_adder.v" module carry_lookahead_adder_4_bit ( input [3:0] i_add1, input [3:0] i_add2, output [4:0] o_result ); wire [4:0] w_C; wire [3:0] w_G, w_P, w_SUM; module_full_adder full_adder_bit_0 ( .i_bit1(i_add1[0]), .i_bit2(i_add2[0]), .i_carry(w_C[0]...
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module test_carry_lookahead_adder_4; // Inputs reg [3:0] in1; reg [3:0] in2; reg cin; // Outputs wire [3:0] sum; wire cout; // Instantiate the Unit test (UUT) carry_lookahead_adder_4 uut ( .sum (sum), .cout(cout), .in1 (in1), .in2 (in2), .cin (cin) ); initial begi...
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module xor2 ( output wire z, input wire x, input wire y ); assign z = x ^ y; endmodule
9.200725