用verilog设计16位超前进位加法器

以下是一个简单的16位超前进位加法器的Verilog代码示例：

module carry_lookahead_adder(
    input [15:0] A,
    input [15:0] B,
    input Cin,
    output [15:0] Sum,
    output Cout
);

wire [15:0] P, G, C;

assign P = A ^ B;
assign G = A & B;

assign C[0] = Cin;
assign C[1] = G[0] | (P[0] & C[0]);

assign C[2] = G[1] | (P[1] & C[1]);
assign C[3] = G[2] | (P[2] & C[2]);
assign C[4] = G[3] | (P[3] & C[3]);
assign C[5] = G[4] | (P[4] & C[4]);
assign C[6] = G[5] | (P[5] & C[5]);
assign C[7] = G[6] | (P[6] & C[6]);
assign C[8] = G[7] | (P[7] & C[7]);
assign C[9] = G[8] | (P[8] & C[8]);
assign C[10] = G[9] | (P[9] & C[9]);
assign C[11] = G[10] | (P[10] & C[10]);
assign C[12] = G[11] | (P[11] & C[11]);
assign C[13] = G[12] | (P[12] & C[12]);
assign C[14] = G[13] | (P[13] & C[13]);
assign C[15] = G[14] | (P[14] & C[14]);

assign Sum = A + B + Cin;
assign Cout = G[15] | (P[15] & C[15]);

endmodule

该代码使用了P和G产生器来计算每个位的进位和和进位输出。进位和C在每个级别上被计算，然后传递给下一个级别。最后，Sum和Cout被计算出来。