题解 | #4bit超前进位加法器电路#
4bit超前进位加法器电路
https://www.nowcoder.com/practice/4d5b6dc4bb2848039da2ee40f9738363
`timescale 1ns/1ns
module lca_4(
input [3:0] A_in ,
input [3:0] B_in ,
input C_1 ,
output wire CO ,
output wire [3:0] S
);
wire [3:0]G;
wire [3:0]P;
wire [2:0]C;
assign G = A_in & B_in;
assign P = A_in ^ B_in;
assign S = P ^ {C,C_1};
assign {CO,C} = G | (P&{C,C_1});
endmodule
