`timescale 1ns/1ns module huawei8//四位超前进位加法器 ( input wire [3:0]A, input wire [3:0]B, output wire [4:0]OUT ); //*************code***********// wire [3:0] f; wire [4:1] Ci; wire [3:0] P; wire [3:0] G; Add1 u0 ( .a(A[0]), .b(B[0]), .C_in(1'b0), .f(f[0]), .g(G[0]), .p(P[0]) ); Add1 u1 ( .a(A[1]), .b(B[1...